RSC - Analyst latest articles

Surface-enhanced Raman spectroscopy studies of yellow organic dyestuffs and lake pigments in oil paint

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00611E, Paper

Hannah E Mayhew, David M Fabian, Shelley Svoboda, Kristin Wustholz
Identifying natural, organic dyes and pigments is important for the conservation, preservation, and historical interpretation of works of art. Although previous SERS studies have demonstrated high sensitivity and selectivity for...
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A novel microfluidic mixer based on dual-hydrodynamic focusing for interrogating the kinetics of DNA-protein interaction

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00521F, Paper

Ying Li, Fei Xu, Chao Liu, Youzhi Xu, Xiaojun Feng, Bifeng Liu
Kinetic measurement of biomacromolecular interaction plays a significant role in revealing the underlying mechanisms of cellular activities. Due to the small diffusion coefficient of biomacromolecules, it is difficult to resolve...
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Use of mercaptophenylboronic acid functionalized gold nanoparticles in a sensitive and selective dynamic light scattering assay for glucose detection in Serum

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00645J, Paper

Qing Wang, Liyan Yang, Xiaohai Yang, Kemin Wang, Jianbo Liu
A highly sensitive dynamic light scattering (DLS) assay for glucose detection without interference from ascorbic acid was demonstrated based on mercaptophenylboronic acid functionalized gold nanoparticles (MPBA-AuNPs). The stable, water-solubility MPBA-AuNPs...
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On-chip laser-induced DNA dehybridization

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00288H, Paper

E. K. Wheeler, B. R. Baker, W. T. Piggott, S. L. Mabery, C. A. Hara, J. DeOtte, W. Benett, E. V. Mukerjee, J. Dzenitis, N. R. Beer
Laser-induced DNA dehybridization and capture of oligonucleotides from individual microarray spots for sample enrichment.
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Design and validation of a multi-electrode bioimpedance system for enhancing spatial resolution of cellular impedance studies

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00176H, Paper

Frank A. Alexander, Michael Celestin, Dorielle T. Price, Meera Nanjundan, Shekhar Bhansali
This paper reports the design and evaluation of a multi-electrode design that improves upon the statistical significance and spatial resolution of cellular impedance data measured using commercial electric cell-substrate impedance sensing (ECIS) systems.
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A rhodamine based "turn-on" chemodosimeter for monitoring gold ions in synthetic samples and living cells

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00024A, Communication

Mustafa Emrullahoglu, Erman Karakus, Muhammed Ucuncu
The novel "turn-on" type chemodosimeter shows highly selective recognition towards Au(I) and Au(III) ions over other metal ions.
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Breast cancer and melanoma cell line identification by FTIR imaging after formalin-fixation and paraffin-embedding

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00246B, Paper

M. Verdonck, N. Wald, J. Janssis, P. Yan, C. Meyer, A. Legat, D. E. Speiser, C. Desmedt, D. Larsimont, C. Sotiriou, E. Goormaghtigh
Closely related cancer epithelial cell lines are still successfully identified by FTIR spectroscopy after FFPE processing.
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Turn-on selective vitamin B6 derivative fluorescent probe for histidine detection in biological samples

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00324H, Communication

Elisabete Oliveira, Carla Santos, Patricia Poeta, Jose Luis Capelo, Carlos Lodeiro
The complex LAl³⁺ is a turn-on selective fluorescent probe for histidine in HEPES buffer and urine samples.
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Differentiation of Chinese liquors by using ambient glow discharge ionization mass spectrometry

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00074E, Paper

Cheng Zhen, Yueming Zhou, Ning Zhang, Jiyun Wang, Caiqiao Xiong, Suming Chen, Zongxiu Nie
A novel method based on ambient glow discharge ionization mass spectrometry has been developed to differentiate Chinese liquors.
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Plastic antibody for DNA damages: Fluorescent imaging of BPDE-dG adducts in genomic DNA

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00467H, Paper

Junfa Yin, Zhixin Wang, Maoyong Song, Chao Zhao, Hailin Wang
Exogenous and endogenous genotoxic carcinogens and their in vivo metabolites may result in DNA damages and cause adverse health effects. It is very difficult to specifically detect trace of DNA...
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An aptasensing platform for simultaneous detection of multiple analytes based on the ampliﬁcation of exonuclease-catalyzed target recycling and DNA concatamers

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00757J, Paper

Liping Jiang, Jingdong Peng, Ruo Yuan, Yaqin Chai, Yali Yuan, Lijuan Bai, Yan Wang
In the present study, an ultrasensitive electrochemical aptasensor for simultaneous detection of thrombin (TB) and ochratoxin A (OTA) was fabricated by using exonuclease-catalyzed target recycling and DNA concatamers for signal...
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Morphological Weighted Penalized Least Squares for Background Correction

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00743J, Paper

Zhong Li, De-Jian Zhan, Jia-Jun Wang, Jing Huang, Qing-Song Xu, Zhi-Min Zhang, Yi-Bao Zheng, Yizeng Liang, Hong Wang
Background existing in the analytical signal always impairs the effectiveness of signals and compromises selectivity and sensitivity of analytical methods. In order to perform further qualitative or quantitative analysis, the...
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Voltammetric behaviour of free DNA bases, methylcytosine and oligonucleotides at disposable screen printed graphite electrode platforms

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00682D, Paper

Ariadna Brotons, Luis Alcaraz, Jonathan Metters, Craig Banks, Jesus Iniesta
Improvements in analytical methods for the determination and quantification of methylcytosine in DNA are vital since it has the potential to be used as a biomarker to detect different diseases...
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Melamine modified gold nanoprobe for "on spot" colorimetric recognition of clonazepam from biological specimens

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00184A, Paper

Anand S. Lodha, Alok Pandya, Pinkesh G Sutariya, Shobhana Menon
Inexpensive, rapid, and reliable methods of detection are crucial to the control in the toxicological investigation. Here we reported, a highly sensitive, selective, cost effective method for the detection of...
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Nanosized metal-organic framework of Fe-MIL-88NH2 as a novel peroxidase mimic and used for colorimetric detection of glucose

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00560G, Paper

Ya Li Liu, Xi Juan Zhao, Xiao Xi Yang, Yuan Fang Li
In this paper, a nanosized porous metal-organic framework, Fe-MIL-88NH2, was facilely prepared with uniform octahedral shape by the addition of acetic acid, and for the first time was demonstrated to...
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Real time in situ chemical characterization of sub-micron organic aerosols using Direct Analysis in Real Time mass spectrometry (DART-MS): the effect of aerosol size and volatility

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00168G, Paper

Man Nin Chan, Theodora Nah, Kevin R. Wilson
Direct Analysis in Real Time mass spectrometry is used to probe the surface chemical composition of organic aerosol and aqueous droplets.
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Compositional sorting dynamics in coexisting lipid bilayer phases with variations in underlying e-beam formed curvature pattern

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00020F, Paper

Maria O. Ogunyankin, Marjorie L. Longo
Distinct curvature patterns of an underlying substrate impart unique dynamics to a metastable pixelation pattern of coexisting liquid ordered-liquid disordered lipid phases.
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Employing aqueous CdTe quantum dots with diversified surface functionalities to discriminate between heme (Fe(II)) and hemin (Fe(III))

Analyst, 2013, 138,3402-3408
DOI: 10.1039/C3AN00310H, Paper

Jishu Han, Ziwei Zhou, Xinyuan Bu, Shoujun Zhu, Hao Zhang, Haizhu Sun, Bai Yang
Heme and hemin are discriminated between on the basis of the fluorescence quenching of aqueous CdTe QDs with diversified surface functionalities that greatly influence their electrostatic interaction in aqueous media.
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Sensitive and high resolution subcutaneous fluorescence in vivo imaging using upconversion nanoparticles and microarrays

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00441D, Paper

Xin Li, Zhuoqi Li, Wupeng Gan, Tongzhou Wang, Songmin Zhao, Ying Lu, Jing Cheng, Guoliang Huang
A sensitive and high resolution small animal in vivo imaging system using upconversion nanoparticles (UNPs) and microarrays was developed.
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Retention modeling in combined pH/organic solvent gradient reversed-phase HPLC

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN36425A, Paper

Ch. Zisi, S. Fasoula, P. Nikitas, A. Pappa-Louisi
An approach for retention modeling of double pH/organic solvent gradient data easily generated by automatically mixing two mobile phases with different pH and organic content according to a linear pump program is proposed.
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Comparative local analysis of metabolites, lipids and proteins in intact fish tissues by LAESI mass spectrometry

Analyst, 2013, 138,3444-3449
DOI: 10.1039/C3AN00631J, Paper

Bindesh Shrestha, Robert Javonillo, John R. Burns, Zsolt Pirger, Akos Vertes
Analysis of fish gills by LAESI mass spectrometry revealed the presence of a protein specific to mature males of a species.
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A novel platform for sensing an amino acid by integrating hydrogel photonic crystals with ternary complexes

Analyst, 2013, 138,3376-3379
DOI: 10.1039/C3AN00253E, Communication

Mei Liu, Li-Ping Yu
A novel sensing platform based on the integration of hydrogel photonic crystals and ternary tetracycline-copper(II)-amino acid complexes.
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Improving the classification accuracy for IR spectroscopic diagnosis of stomach and colon malignancy using non-linear spectral feature extraction methods

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00256J, Paper

Sanguk Lee, Kyoungok Kim, Hyeseon Lee, Chi-Hyuck Jun, Hoeil Chung, Jong-Jae Park
Non-linear feature extraction recognizes minor spectral difference between normal and malignant tissues, and improves accuracy of diagnosis based on IR spectroscopy.
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Label-free imaging of mammalian cell nucleoli by Raman microspectroscopy

Analyst, 2013, 138,3416-3423
DOI: 10.1039/C3AN00118K, Paper

H. Georg Schulze, Stanislav O. Konorov, James M. Piret, Michael W. Blades, Robin F. B. Turner
Label-free differential chemical imaging of the nucleolus and its substructure by Raman microspectroscopy reveals the distribution of its macromolecular components.
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A novel differential mobility analyzer as a VOC detector and multivariate techniques for identification and quantification

Analyst, 2013, 138,3512-3521
DOI: 10.1039/C3AN00078H, Paper

V. Pomareda, S. Lopez-Vidal, D. Calvo, A. Pardo, S. Marco
A Differential Mobility Analyser (DMA) is a specific configuration of an Ion Mobility Spectrometer (IMS) where ions with different electrical mobilities are separated in space, instead of in time of drift, as in classical drift-time IMS.
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An automated method for baseline correction, peak finding and peak grouping in chromatographic data

Analyst, 2013, 138,3502-3511
DOI: 10.1039/C3AN36276K, Paper

Lea G. Johnsen, Thomas Skov, Ulf Houlberg, Rasmus Bro
An automated method (FastChrom) for baseline correction, peak detection and assignment (grouping) of similar peaks across samples has been developed. The method includes a new method for baseline estimation.
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Mepanipyrim haptens and antibodies with nanomolar affinity

Analyst, 2013, 138,3360-3364
DOI: 10.1039/C3AN00228D, Communication

Francesc A. Esteve-Turrillas, Josep V. Mercader, Consuelo Agullo, Antonio Abad-Somovilla, Antonio Abad-Fuentes
Hapten synthesis and antibody production for immunodetection of the anilinopyrimidine fungicide mepanipyrim are reported for the first time.
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An improved lectin-based method for the detection of mucin-type O-glycans in biological samples

Analyst, 2013, 138,3522-3529
DOI: 10.1039/C3AN36258B, Paper

Cheng-Siang Lee, Arivalagan Muthusamy, Puteri Shafinaz Abdul-Rahman, Veer P. Bhavanandan, Onn Haji Hashim
Mucin type O-glycans were specifically captured by champedak galactose binding lectin, which was then probed using biotinylated jacalin. Our newly developed method improves the detection sensitivity for the O-glycans in biological samples such as serum.
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Development of a label-free aptasensor for monitoring the self-association of lysozyme

Analyst, 2013, 138,3530-3537
DOI: 10.1039/C3AN00229B, Paper

Alina Vasilescu, Szilveszter Gaspar, Iuliana Mihai, Andreia Tache, Simona Carmen Litescu
A novel aptamer and SPR-based sensor was applied for monitoring the early stages of lysozyme aggregation.
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Electrochemical signature of mismatch in overhang DNA films: a scanning electrochemical microscopic study

Analyst, 2013, 138,3538-3543
DOI: 10.1039/C3AN36810F, Paper

Mohtashim Hassan Shamsi, Heinz-Bernhard Kraatz
High throughput DNA basepair mismatch detection is an ultimate goal for earlier and point-of-care diagnostics.
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A new fluorescence "switch on" assay for heparin detection by using a functional ruthenium polypyridyl complex

Analyst, 2013, 138,3483-3489
DOI: 10.1039/C3AN00242J, Paper

Ting-Ting Cheng, Jun-Liang Yao, Xing Gao, Wenliang Sun, Shuo Shi, Tian-Ming Yao
A new fluorescence "switch on" sensor for heparin detection is presented based on a functional ruthenium polypyridyl complex ([Ru(phen)₂dppz-idzo]²⁺).
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Preparation of copper oxide anchored on surfactant-functionalized macroporous carbon composite and its electrochemical applications

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00487B, Communication

Yufan Zhang, Xiangjie Bo, Anaclet Nsabimana, Huan Wang, Mian Li, Liping Guo
CuO nanoparticles were anchored on surfactant-functionalized macroporous carbon (MPC), which exhibits significant catalytic activity for the oxidation of hydrazine.
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A miniaturised electron ionisation time-of-flight mass spectrometer that uses a unique helium ion removal pulsing technique specifically for gas analysis

Analyst, 2013, 138,3394-3401
DOI: 10.1039/C3AN00217A, Paper

Jiang Qing, Zhengxu Huang, Yan Zhang, Hui Zhu, Guobin Tan, Wei Gao, Peng-yuan Yang
A pulsing device for the removal of helium ions is designed and coupled to a miniaturised electron ionisation time-of-flight mass spectrometer for gas analysis.
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Direct analysis in real time mass spectrometry (DART-MS) of "bath salt" cathinone drug mixtures

Analyst, 2013, 138,3424-3432
DOI: 10.1039/C3AN00360D, Paper

Ashton D. Lesiak, Rabi A. Musah, Robert B. Cody, Marek A. Domin, A. John Dane, Jason R. E. Shepard
DART-MS methods for rapid and versatile detection and characterization of synthetic cathinone designer drug mixtures, also known as "bath salts" were developed.
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Nanocapsule-based probe for evaluating the orientation of antibodies immobilized on a solid phase

Analyst, 2013, 138,3470-3477
DOI: 10.1039/C3AN00481C, Paper

Masumi Iijima, Nobuo Yoshimoto, Tomoaki Niimi, Andres Daniel Maturana, Shun'ichi Kuroda
Bio-nanocapsules displaying IgG Fc-binding Z domains (ZZ-BNC) can discriminate the IgGs fixed in an oriented- and randomized-immobilization manner.
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Gold-nanopatterned single interleukin-6 sandwich immunoassay chips with zeptomolar detection capability based on evanescent field-enhanced fluorescence imaging

Analyst, 2013, 138,3478-3482
DOI: 10.1039/C3AN36914E, Paper

Seungah Lee, Seong Ho Kang
A novel single IL-6 sandwich immunoassay chip with 100 nm Au spots based on an ultra-sensitive TIRFM system.
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Solid-state voltammetry-based electrochemical immunosensor for Escherichia coli using graphene oxide-Ag nanoparticle composites as labels

Analyst, 2013, 138,3388-3393
DOI: 10.1039/C3AN00056G, Paper

Xiaochun Jiang, Kun Chen, Jing Wang, Kang Shao, Tao Fu, Feng Shao, Donglian Lu, Jiangong Liang, M. Frahat Foda, Heyou Han
A new electrochemical immunosensor for Escherichia coli was fabricated based on solid-state voltammetry by using graphene oxide-Ag nanoparticle nanocomposites (P-GO-Ag) as labels.
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Determination of free acidic and alkaline residues of protein via moving reaction boundary titration in microdevice electrophoresis

Analyst, 2013, 138,3544-3551
DOI: 10.1039/C3AN36494A, Paper

Hou-yu Wang, Si Li, Yun-yun Tang, Jing-yu Dong, Liu-yin Fan, Cheng-xi Cao
Rapid and direct determination of acidic and alkaline residues of protein via moving reaction boundary electrophoretic titration is reported.
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A ratiometric fluorescent probe based on a BODIPY-DCDHF conjugate for the detection of hypochlorous acid in living cells

Analyst, 2013, 138,3368-3371
DOI: 10.1039/C3AN36820C, Communication

Jeesook Park, Hyunjin Kim, Yongdoo Choi, Youngmi Kim
A colorimetric and ratiometric fluorescent probe consisting of a boron-dipyrromethene (BODIPY) dye conjugated with 2-dicyanomethylene-3-cyano-2,5-dihydrofuran (DCDHF) has been designed for detection of HOCl via oxidative cleavage of an alkene linker between BODIPY and DCDHF.
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An in situ electrochemical detection method of cell viability

Analyst, 2013, 138,3372-3375
DOI: 10.1039/C3AN00379E, Communication

Hongwei Qin, Qingdong Gao, Huiming Niu, Zhefeng Wang, Xiaolin Zhu, Jinlian Li, Xing Yuan, Dongmei Wu
A novel and simple in situ electrochemical detection method of cell viability was developed.
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Biological and biomedical 14C-accelerator mass spectrometry and graphitization of carbonaceous samples

Analyst, 2013, 138,3347-3355
DOI: 10.1039/C3AN00077J, Tutorial Review

Ill-Min Chung, Seung-Hyun Kim
Accurate and reproducible bio-¹⁴C-AMS for in vivo human PK and ADME of food components, nutrients, new drugs, and environmental chemicals.
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Tailoring zinc porphyrin to the Ag nanostructure substrate: an effective approach for photoelectrochemical studies in the presence of mononucleotides

Analyst, 2013, 138,3380-3387
DOI: 10.1039/C3AN00156C, Paper

Farkhondeh Fathi, Cong Kong, Yueqiang Wang, Yongshu Xie, Yi-Tao Long, Heinz-Bernhard Kraatz
Mononucleotides influence the photoelectrochemical response of a Zn porphyrin chemically linked to a nanostructured Ag surface.
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A tyrosinase biosensor based on ordered mesoporous carbon-Au/L-lysine/Au nanoparticles for simultaneous determination of hydroquinone and catechol

Analyst, 2013, 138,3552-3560
DOI: 10.1039/C3AN36928E, Paper

Lin Tang, Yaoyu Zhou, Guangming Zeng, Zhen Li, Yuanyuan Liu, Yi Zhang, Guiqiu Chen, Guide Yang, Xiaoxia Lei, Mengshi Wu
A tyrosinase biosensor based on nano-porous-structured carbon-Au was applied in the simultaneous determination of dihydroxybenzene isomers.
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Metal-organic frameworks-based biosensor for sequence-specific recognition of double-stranded DNA

Analyst, 2013, 138,3490-3493
DOI: 10.1039/C3AN00426K, Paper

Lifen Chen, Hanye Zheng, Xi Zhu, Zhenyu Lin, Longhua Guo, Bin Qiu, Guonan Chen, Zhong-Ning Chen
A fluorescence sensor is developed for sequence-specific recognition of duplex DNA in vitro using a metal-organic framework as the sensing platform.
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Ultrasensitive electrochemiluminescence detection of lengthy DNA molecules based on dual signal amplification

Analyst, 2013, 138,3463-3469
DOI: 10.1039/C3AN00452J, Paper

Fang Liu, Heng Liu, Meng Zhang, Jinghua Yu, Shaowei Wang, Juanjuan Lu
Ultrasensitive detection of overlong DNA molecules based on Au@CNT-GS platform and CdTe-Zno signal amplification.
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Simultaneous evaluation of p53 and p21 expression level for early cancer diagnosis using SERS technique

Analyst, 2013, 138,3450-3456
DOI: 10.1039/C3AN00181D, Paper

Lei Wu, Zhuyuan Wang, Shenfei Zong, Hui Chen, Chunlei Wang, Shuhong Xu, Yiping Cui
We report a SERS-based multiplex detection of p53 and p21 for early cancer diagnosis with high sensitivity and improved efficiency.
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A colorimetric method for H1N1 DNA detection using rolling circle amplification

Analyst, 2013, 138,3457-3462
DOI: 10.1039/C3AN00100H, Paper

Yasi Xing, Ping Wang, Yucui Zang, Yuqing Ge, Qinghui Jin, Jianlong Zhao, Xia Xu, Guoqiang Zhao, Hongju Mao
This study established a highly sensitive colorimetry-based rolling circle amplification assay for H1N1 DNA detection.
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Electrochemical determination of microRNA-21 based on bio bar code and hemin/G-quadruplet DNAenzyme

Analyst, 2013, 138,3409-3415
DOI: 10.1039/C3AN36788F, Paper

Xiaomeng Meng, Yunlei Zhou, Qianjin Liang, Xiangjin Qu, Qingqing Yang, Huanshun Yin, Shiyun Ai
A microRNA biosensor was developed using DNA-Au bio bar code and G-quadruplex-based DNAenzyme and applied to detect miRNA-21 from human hepatocarcinoma and mastocarcinoma cell lines.
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A novel fluorescent "Turn-Off/Turn-On" system for the detection of acid phosphatase activity

Analyst, 2013, 138,3365-3367
DOI: 10.1039/C3AN00375B, Communication

Pu Guo, Shengyong Yan, Yimin Zhou, Changcheng Wang, Xiaowei Xu, Xiaocheng Weng, Xiang Zhou
Acid phosphatase (ACP) can be detected via a fluorescent "Turn-Off/Turn-On" system with inexpensive (NaPO₃)₆ as a quencher of the probe.
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The synthesis of molecular imprinted chitosan-gels copolymerized with multiform functional monomers at three different temperatures and the recognition for the template ovalbumin

Analyst, 2013, 138,3433-3443
DOI: 10.1039/C3AN36930G, Paper

Ran Dan, Yuzhi Wang, Lin Du, Shuhua Du, Meidong Huang, Shan Yang, Min Zhang
Molecularly imprinted polymers (MIPs) have been prepared to recognize the template ovalbumin.
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A stimuli-responsive "smart probe" for selective monitoring of multiple-cations via differential analyses

Analyst, 2013, 138,3356-3359
DOI: 10.1039/C3AN00087G, Communication

Anup Kumar, Alok K. Singh, Tarkeshwar Gupta
Differential fluorescence responses of a benzimidazole-based ternary ruthenium complex containing multiple ionophores viz. carbonyl, amine, and imine after interaction with various metal ion stimuli at parts-per-million concentrations permit selective recognition of Pb²⁺, Fe²⁺ and Zn²⁺ at a single platform using a single optical technique.
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Advanced oxidation using Fe3O4 magnetic nanoparticles and its application in mercury speciation analysis by high performance liquid chromatography-cold vapor generation atomic fluorescence spectrometry

Analyst, 2013, 138,3494-3501
DOI: 10.1039/C3AN00010A, Paper

Xi Ai, Yu Wang, Xiandeng Hou, Lu Yang, Chengbin Zheng, Li Wu
A novel post-column oxidation method using Fe₃O₄ magnetic nanoparticles was developed for the speciation analysis of mercury.
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Wide area coverage Raman spectroscopy for reliable quantitative analysis and its applications

Analyst, 2013, 138,3335-3346
DOI: 10.1039/C3AN36843B, Minireview

Kayeong Shin, Hoeil Chung
This review summarizes recent studies to improve sample representation in Raman measurement by covering a large area of a sample in spectral collection.
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Improving the sensitivity of confocal laser induced fluorescence detection to sub-picomolar scale for round capillaries by laterally shifting laser focus point

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00345K, Paper

Yng Zhu, Nian-Nian Chen, Qi Li, Qun Fang
This paper describes a simple and efficient approach to reduce the background level of confocal laser induced fluorescence (LIF) detection for round capillaries by laterally shifting laser focus point. A...
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Diffuser-Incorporated Transmission NIR Measurement for Reliable Analysis of Packed Granular Samples

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00514C, Paper

Jihye Yoon, Jaejin Kim, Pham Khac Duy, Mooeung Kim, Sukwon Kang, Hoeil Chung
A diffuser-incorporated transmission near-infrared (NIR) scheme that enables direct spectral collection of packed granular samples with reliable sample representation and reproducibility has been demonstrated. The analytical utility of this method...
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Transport and accumulation of ferrocene tagged poly(vinyl chloride) at the buried interfaces of plasticized membrane electrodes

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00464C, Communication

Manzar Sohail, Roland De Marco, Muhammad Tanzirul Alam, Marcin Pawlak, Eric Bakker
Cyclic voltammetry (CV), synchrotron radiation-X-ray photoelectron spectroscopy (SR-XPS) and near edge X-ray absorption fine structure (NEXAFS) show that oxidation of ferrocene tagged PVC induces an accumulation of high molecular weight...
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Photoelectrochemical Lab-on-Paper Device Based on Molecularly Imprinted Polymer and Porous Au-paper Electrode

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00694H, Paper

Panpan Wang, Guoqiang Sun, Lei Ge, Shenguang Ge, Jinghua Yu, Mei Yan
In this work, microfluidic paper-based analytical device ([small mu ]-PAD) was applied in photoelectrochemical (PEC) method and thus a truly low-cost, simple, portable, and disposable microfluidic PEC origami device ([small mu ]-PECOD) was demonstrated....
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Label-free, high-throughput, electrical detection of cells in droplets

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00569K, Paper

Evelien Kemna, Loes Segerink, Floor Wolbers, Istvan Vermes, Albert van den Berg
Today, droplet based microfluidics has become a standard platform for high-throughput single cell experimentation and analysis. However, till now no label-free, integrated single cell detection and discrimination method in droplets...
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Electrochemiluminescent polymer film with suitable redox "turn-off" absorbance window for remote selective sensing of Hg2+

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00545C, Paper

Shu Qinghai, Catherine Adam, Neso Sojic, Michael Schmittel
A novel electrochemiluminescent sensing scheme is presented for remote detection of Hg2+ through ITO-coated nano-structured optical fibre bundle. It is based on the electropolymerisation of CPDT-linked ruthenium phenanthrolines complexes carrying...
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Single molecule kinetics of horseradish peroxidase exposed in large arrays of femtoliter-sized fused silica chambers

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00809F, Communication

Benno N. Ehrl, Raphaela B. Liebherr, Hans H. Gorris
Large arrays of femtoliter-sized chambers were etched into the surface of fused silica slides to enclose and observe hundreds of single horseradish peroxidase (HRP) molecules in parallel. Individual molecules of...
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A study of the conditions of measurement required to evaluate bias in analytical results illustrated by the use of data from a multi-round, blind-duplicated, proficiency test

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00130J, Paper

Gregory E O'Donnell, David Brynn Hibbert
Measurement uncertainty estimated under repeatability conditions in batch chemical analysis using calibrated instruments may be considered to be composed of contributions from two major effects: i) precision of the analysis...
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Ultra-high density protein spots achieved by on chip digitalized protein synthesis

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00976A, Paper

Soo Hyeon Kim, Satoko Yoshizawa, Shoji Takeuchi, Teruo Fujii, Dominique Fourmy
Current methodologies for arraying proteins using cell-free protein synthesis on a chip have spatial limitations that prevent reaching ultra-high density necessary for high throughput analysis. To circumvent this, we developed...
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A novel dark-field microscopy technique coupled with capillary electrophoresis for visual analysis of single nanoparticles

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00408B, Paper

Libo Li, Huan Yu, Dong Liu, Tianyan You
A system for interfacing dark field microscopy (DFM) with capillary electrophoresis (CE) was demonstrated and applied to investigate the movement of single gold nanoparticles (AuNPs) visually and in real time for the first time.
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Correlated Raman micro-spectroscopy and scanning electron microscopy analyses of flame retardants in environmental samples: a micro-analytical tool for probing chemical composition, origin and spatial distribution

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00501A, Paper

Sutapa Ghosal, Jeff Wagner
We present correlated application of two micro-analytical techniques: Raman micro-spectroscopy and SEM/EDS for the non-invasive characterization and molecular identification of flame retardants (FRs) in environmental samples.
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Radiation-induced grafting of carbon nanotubes on HPLC silica microspheres: theoretical and practical aspects

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00163F, Paper

Andrea Speltini, Daniele Merli, Daniele Dondi, Chiara Milanese, Pietro Galinetto, Carlo Bozzetti, Antonella Profumo
Carbon nanotubes immobilized on silica microspheres by [gamma]-radiation preserve their pristine characteristics; this material is suitable for selective chromatographic separations.
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Fluorescence quenching in luminescent porous silicon nanoparticles for the detection of intracellular Cu2+

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00503H, Communication

Bing Xia, Wenyi Zhang, Jisen Shi, Shoujun Xiao
A PSiNPs-based fluorescent assay with high specificity and sensitivity was designed for cellular imaging and biosensing of intracellular Cu²⁺.
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Ultra-rapid colorimetric assay for protease detection using magnetic nanoparticle-based biosensors

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN36881E, Paper

Ghadeer A. R. Y. Suaifan, Chiheb Esseghaier, Andy Ng, Mohammed Zourob
A simple, instrument-free biosensor that can lead to low-cost point-of-care device for sensitive protease detection.
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A Rapid Electrochemical Biosensor Based on an AC Electrokinetics Enhanced Immuno-reaction

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00190C, Paper

I-Fang Cheng, Hsiao-Lan Yang, Cheng-Che Chung, Hsien-Chang Chang
Fluorescent labelling and chromogenic reactions commonly used in conventional immunoassays typically utilize diffusion dominated transports of analytes, which are limited by their slow reaction rates and long detection times. By...
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Selection of Representative Matrix for the Multiresidue Analysis of nine [small beta]-Agonists in Animal Tissues and Urine with LC-MS/MS

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN36806H, Paper

LiQi Wang, LiMin He, Zhong Wang, XuFeng Wang, JianHua Shu, JianWen Yang, GaoKui Zhang, ZhenLing Zeng
In the determination of nine [small beta]-agonists including salbutamol, terbutaline, cimaterol, fenoterol, clorprenaline, ractopamine, tulobuterol, clenbuterol and penbuterol in porcine, bovine, lamb and chicken muscle, liver and urine samples using LC-MS/MS,...
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Raman spectroscopy of serum: an exploratory study for detection of oral cancers

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00308F, Paper

Aditi Sahu, Sharada Sawant, Hitesh Mamgain, Murali Krishna Chilakapati
Early diagnosis of oral cancers, one of the major cancers, is of utmost importance as 5-year disease-free-survival rates are some of the lowest, despite advances in treatment and surgical modalities....
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In situ analysis of corrosion inhibitors using a portable mass spectrometer with paper spray ionization

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00249G, Paper

Fred. P. M. Jjunju, Anyin Li, Abraham Badu-Tawiah, Pu Wei, Linfan Li, Zheng Ouyang, Iman S. Roqan, R. Graham Cooks
Paper spray (PS) ambient ionization is implemented using a portable mass spectrometer and applied to the detection of alkyl quaternary ammonium salts in a complex oil matrix.
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Use of a large Stokes-shift fluorophore to increase the multiplexing capacity of a point-of-care DNA diagnostic device

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00593C, Communication

James A. Richardson, Trevor Morgan, Michael Andreou, Tom Brown
A simple and effective method for increased multiplexing has been developed for use in point of care DNA diagnostic applications.
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A new dimension for cell identification by FTIR spectroscopy: depth profiling in attenuated total reflection

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00193H, Paper

A. Gaigneaux, E. Goormaghtigh
Modulation of penetration depth in ATR improves cell type discrimination.
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A compact high resolution ion mobility spectrometer for fast trace gas analysis

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00231D, Paper

Ansgar T. Kirk, Maria Allers, Philipp Cochems, Jens Langejuergen, Stefan Zimmermann
Based on a refined theory of IMS operation, a 10 cm short drift tube ion mobility spectrometer with a resolution of 183 and detection limits in the low ppt_v-range has been designed.
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Introduction to analyzing the solidification of multifunctional acrylic esters by ESR

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN36869F, Paper

Michael Schmitt
A kinetic in situ ESR-study of multifunctional resins is presented in combination with the computation of the trapped midchain radical.
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Reagent-free monitoring of multiple clinically relevant parameters in human blood plasma using a mid-infrared quantum cascade laser based sensor system

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00300K, Paper

Markus Brandstetter, Tamara Sumalowitsch, Andreas Genner, Andreas E. Posch, Christoph Herwig, Andreas Drolz, Valentin Fuhrmann, Thomas Perkmann, Bernhard Lendl
QCL based mid-infrared point-of-care sensor for reagent-free multianalyte detection in human blood plasma.
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Non-contact halogen lamp heating assisted LTP ionization miniature rectilinear ion trap: a platform for rapid on-site explosives analysis

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00555K, Paper

Wendong Chen, Keyong Hou, Xingchuang Xiong, You Jiang, Wuduo Zhao, Lei Hua, Ping Chen, Yuanyuan Xie, Zhenxin Wang, Haiyang Li
A platform consisting of a halogen lamp, a low temperature plasma (LTP) probe, and a miniature rectilinear ion trap mass spectrometer (RIT-MS) has been constructed and evaluated to detect the...
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A NOVEL LTCC ELECTROCHEMICAL CELL CONSTRUCTION AND CHARACTERIZATION: A DETECTION COMPARTMENT TO PORTABLE DEVICES

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00648D, Paper

Naira Canevarolo Pesquero, Mario Ricardo Gongora-Rubio, Hideko Yamanaka
In this work we described for the first time the construction of a 25 [small micro]L electrochemical cell from low temperature co-fired ceramic (LTCC) material and carbon screen-printed electrode applicable in...
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Quantification of Tumor Necrosis Factor-[small alpha] and Matrix Metalloproteinases-3 in Synovial Fluid by Fiber-Optic Particle Plasmon Resonance Sensor

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00276D, Paper

Yi Ching Huang, Chang-Yue Chiang, Cheng-Hen Li, Ting-Chou Chang, Chung-Sheng Chiang, Lai-Kwan Chau, Kuo-Wei Huang, Chin-Wei Wu, Shau-Chun Wang, Shaw-Ruey Lyu
The availability of techniques for sensitive detection of early stage osteoarthritis is critical for improving patient health. This study illustrates the feasibility of fiber-optic particle plasmon resonance (FOPPR) sensor with...
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Profiling intact steroid sulfates and unconjugated steroids in biological fluids by liquid chromatography-tandem mass spectrometry (LC-MS-MS)

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN36817C, Paper

Christina E. Galuska, Michaela F. Hartmann, Alberto Sanchez-Guijo, Katharina Bakhaus, Joachim Geyer, Gerhard Schuler, Klaus-Peter Zimmer, Stefan A. Wudy
To elucidate the metabolism of steroid sulfates, a LC-MS-MS method for profiling 6 sulfated and 11 unconjugated steroids was developed.
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Chromatographic separation and detection of target analytes from complex samples using inkjet printed SERS substrates

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00673E, Paper

Wei W. Yu, Ian M. White
We demonstrate separation and detection of analytes from complex samples using the chromatographic properties of inkjet-printed surface enhance Raman spectroscopy (SERS) devices.
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A label-free amplified fluorescence DNA detection based on isothermal circular strand-displacement polymerization reaction and graphene oxide

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00421J, Communication

Zhen Li, Wenping Zhu, Jinwen Zhang, Jianhui Jiang, Guoli Shen, Ruqin Yu
A label-free fluorescent DNA biosensor was first developed based on isothermal circular strand-displacement polymerization reaction combined with graphene oxide binding.
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Solid phase extraction-capillary electrophoresis determination of sulphonamide residues in milk samples by use of C18-carbon nanotubes as hybrid sorbent materials

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00319A, Paper

M. L. Polo-Luque, B. M. Simonet, M. Valcarcel
The sorption capabilities of two CNT/C18 hybrid sorbent materials for preconcentrating sulphonamides from milk samples are evaluated.
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Magnetic particle-based time-resolved fluoroimmunoassay for the simultaneous determination of [small alpha]-fetoprotein and the free [small beta]-subunit of human chorionic gonadotropin

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00412K, Paper

Jing-Yuan Hou, Tian-Cai Liu, Zhi-Qi Ren, Mei-Jun Chen, Guan-Feng Lin, Ying-Song Wu
A novel fluoroimmunoassay for the simultaneous determination of [small alpha]-fetoprotein and the free [small beta]-subunit of human chorionic gonadotropin.
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Solution-free, in situ preparation of nano/micro CuO/ZnO in dielectric barrier discharge for sensitive cataluminescence sensing of acetic acid

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00407D, Paper

Hui Xia, Ronghui Zhou, Chengbin Zheng, Peng Wu, Yunfei Tian, Xiandeng Hou
A new solution-free strategy is used for preparation of cluster-like nano/micro CuO/ZnO particles in dielectric barrier discharge in which the brass acts as the inner electrode for sensing of acetic acid.
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Potentiometric sensors using cotton yarns, carbon nanotubes and polymeric membranes

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00710C, Paper

Tomas Guinovart, Marc Parrilla, Gaston Adrian Crespo, F. Xavier Rius, Francisco Andrade
A simple and generalized approach to build electrochemical sensors for wearable devices is presented. Commercial cotton yarns are first turned into electrical conductors through a simple dyeing process using a...
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Cerium oxide-triggered 'one-to-many' catalytic cycling strategy for in situ amplified electronic signal of low-abundance protein

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00706E, Paper

Juan Tang, Xian Chen, Jun Zhou, Qunfang Li, Guonan Chen, Dianping Tang
Multifunctionalized thionine modified cerium oxide (Thi-CeO2) nanostructures with redox ability and catalytic activity were designed as the bionanolabels for in situ amplified electronic signal of low-abundance protein (carcinoembryonic antigen, CEA,...
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Alternative SERRS probes for the immunochemical localization of ovalbumin in paintings: an advanced mapping detection approach

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00057E, Paper

Giorgia Sciutto, Lucio Litti, Cristiana Lofrumento, Silvia Prati, Marilena Ricci, Marina Gobbo, Aldo Roda, Emilio Castellucci, Moreno Meneghetti, Rocco Mazzeo
In the field of analytical chemistry, many scientific efforts have been devoted to develop experimental procedures for the characterization of organic substances present in heterogeneous artworks samples, due to their...
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Nanoparticle Embedded Enzymes for Improved Lateral Flow Sensors

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00733B, Communication

Veli Cengiz Ozalp, Ugur Siyami Zeydanli, Anita Lunding, Murat Kavruk, Tufan M. Oz, Fusun Eyidogan, Lars Folke Olsen, Huseyin Avni Oktem
In this study, combining the nanoparticle embedding sensors with lateral flow assay, a novel strategy for ensuring the quality of signalling in lateral flow assays (LFA) was developed. LFA for...
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Ag-decorated TiO2 nanograss for 3D SERS-active substrate with visible light self-cleaning and reactivation

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00750B, Paper

S. C. Xu, Guanghai Li, Yunxia Zhang, Yuanyuan Luo, J. M. Xu, Shuan Wang, Hualin Ding
The production of SERS-active substrate with uniform, sensitivity, reproducibility and durability still remains an important issue. Here, we report a fabricating strategy for large-area Ag-decorated TiO2 nanograss SERS-active substrate by...
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Fluorescent sensing of mercury(II) based on formation of catalytic gold nanoparticles

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00725A, Communication

Lixia Yan, Zhaopeng Chen, Zhiyang Zhang, Chengli Qu, Lingxin Chen, Dazhong Shen
A fluorescence assay for the highly sensitive and selective detection of Hg2+ using a gold nanoparticle (AuNP)-based probe was proposed. The assay was based on the formation of Hg-Au alloys...
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Theoretical and experimental studies on isotachophoresis in multi-moving chelation boundary system formed with metal ions and EDTA

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00643C, Paper

Wei Zhang, Chen-Gang Guo, Liuyin Fan, Chengxi Cao
In this paper, a general mode and theory of moving chelation boundary based isotachophoresis (MCB-based ITP), together with the concept of decisive metal ion (DMI) having the maximum complexation constant...
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A microfluidic anti-Factor Xa assay device for point of care monitoring of anticoagulation therapy

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00401E, Paper

Leanne F. Harris, Paul Rainey, Vanessa Castro-Lopez, James S. O'Donnell, Anthony J. Killard
Here we present a novel fluorescence-based anti-Factor Xa microfluidic assay device for point of care monitoring of the effect of anticoagulant therapy.
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Selective sensing of vapors of similar dielectric constants using peptide-capped gold nanoparticles on individual multivariable transducers

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00088E, Paper

Nandini Nagraj, Joseph M. Slocik, David M. Phillips, Nancy Kelley-Loughnane, Rajesh R. Naik, Radislav A. Potyrailo
Peptide-capped gold nanoparticles were applied onto a multivariable inductor-resistor-capacitor resonator and resolved model toxic vapors with similar dielectric constants.
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Noninvasive analysis of hormonal variations and effect of postmenopausal vagifem treatment on women using in vivo high wavenumber confocal Raman spectroscopy

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00526G, Paper

Zhiwei Huang
This study aims to evaluate the feasibility of applying high wavenumber (HW) confocal Raman spectroscopy for noninvasive assessment of menopause-related hormonal changes in the cervix as well as for determining...
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Fluorescent optical fiber sensors for cell viability monitoring

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00248A, Paper

Ilia Sergachev, Alexander Rusanov, Evgeny Trushkin, Dmitry Sakharov, Uwe Marx, Alexander Tonevitsky
A new simple method for non-invasive cell culture viability monitoring based on vital fluorescent stains is introduced, and its efficiency for long-term experiments on cells is demonstrated.
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A disposable electrochemical immunosensor for the determination of leptin in serum and breast milk

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00183K, Paper

Irene Ojeda, Maria Moreno-Guzman, Araceli Gonzalez-Cortes, Paloma Yanez-Sedeno, Jose M. Pingarron
The preparation of a disposable electrochemical immunosensor for the quantification of the hormone leptin is described in this work.
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Determination of cell cycle phases in live B16 melanoma cells using IRMS

Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00318C, Paper

Diana E. Bedolla, Sasa Kenig, Elisa Mitri, Paolo Ferraris, Alessandro Marcello, Gianluca Grenci, Lisa Vaccari
New silicon modified BaF₂ microfluidic devices were used for the assessment of cell cycle stages of live B16 melanoma cells by using label-free IRMS. Spectroscopic results were cross-checked with flow cytometry data showing a good agreement between these techniques.
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Advances in nano-scaled biosensors for biomedical applications

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00438D, Minireview

Jianling Wang, Guihua Chen, Hui Jiang, Zhiyong Li, Xuemei Wang
Recently, a growing number of attentions have been attracted to the utility of biosensors for biomedical application. Combined with nanomaterials and nanostructures, nano-scaled biosensors are installed for biomedical applications, such...
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Nicked-sleeve interface for two-dimensional capillary electrophoresis

Analyst, 2013, Accepted Manuscript
DOI: 10.1039/C3AN00284E, Communication

Norman Dovichi, Ryan J Flaherty, Bonnie Jaskowski - Huge, Spencer M Bruce, Oluwatosin Dada
We report an improved interface for two-dimensional capillary electrophoresis. This interface is based on capillary tubing and a Plexiglas chip, both of which were milled using a micro-dicing saw. The...
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