RSC - Photochem. Photobiol. Sci. latest articles

Photochemical reactions of aromatic compounds and the concept of the photon as a traceless reagent.

Photochem. Photobiol. Sci., 2012, Accepted Manuscript
DOI: 10.1039/C2PP25074H, Perspective

Norbert Hoffmann
Electronic excitation significantly change the reactivity of chemical compounds. Compared to ground state reactions, the photochemical reactions considerably enlarge the application spectrum of a particular functional group in organic synthesis....
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Supramolecular Control During Triplet Sensitized Geometric Isomerization of Stilbenes Encapsulated in a Water Soluble Organic Capsule

Photochem. Photobiol. Sci., 2012, Accepted Manuscript
DOI: 10.1039/C2PP25115A, Paper

V Ramamurthy, Shampa R. Samanta, Anand Parthasarathy
Triplet sensitized photoisomerization of several stilbenes included within a water-soluble organic capsule has been investigated. In this study octa acid that self assemble in presence of hydrophobic guest molecules to...
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Radiationless deactivation of 6-aminocoumarin from the S1-ICT state in nonspecifically interacting solvents

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP25065A, Paper

Ewa Krystkowiak, Krzysztof Dobek, Gotard Burdzinski, Andrzej Maciejewski
Strongly solvent dependent efficient radiationless processes of 6-aminocoumarin S₁-ICT state deactivation.
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Photochemical isomerization of aryl hydrazones of 1,2,4-oxadiazole derivatives into the corresponding triazoles.

Photochem. Photobiol. Sci., 2012, Accepted Manuscript
DOI: 10.1039/C2PP25073J, Paper

M. DAuria
The photochemical version of the Boulton-Katritzky reaction has been studied, examining the behaviour of the arylhydrazones of 3-benzoyl-5-X-1,2,4-oxadiazoles. The effect of several modifications of the substrates structure (the E and/or...
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Pattern of sensitivity of progressive cutaneous squamous cell carcinoma cells to UVB and oxidative stress induced cell death

Photochem. Photobiol. Sci., 2012, Accepted Manuscript
DOI: 10.1039/C2PP25064K, Paper

Kathleen Barrette, Nele Zutterman, Sofie Van Kelst, Charlotte Proby, Marjan Garmyn
Previous investigations have demonstrated that isogenic cutaneous squamous cell carcinoma cell lines (cSCC), isolated from highly dysplastic skin (PM1), primary invasive SCC (MET1) and its lymph node metastasis (MET4), show...
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2-Chlorophenol photooxidation using immobilized meso-tetraphenylporphyrin in polyurethane nanofabrics

Photochem. Photobiol. Sci., 2012, Accepted Manuscript
DOI: 10.1039/C2PP25010A, Paper

Marta Gmurek, Jiri Mosinger, Jacek Stanislaw Miller
This is an Accepted Manuscript, which has been through the RSC Publishing peer review process and has been accepted for publication. Accepted manuscripts are published online shortly after acceptance. This version of the article will be replaced by the fully edited, formatted and proof read Advance Article as soon as this is available.
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Optimization of a photopolymerizable material based on a photocyclic initiating system using holographic recording

Photochem. Photobiol. Sci., 2012, Accepted Manuscript
DOI: 10.1039/C2PP25099C, Paper

Xavier Allonas, Christian Ley, Ahmad Ibrahim, Olga Tarzi, Aurelie Chan Yong, Christiane Carre
A set of photoinitiating systems (PIS) for free radical photopolymerization was studied using time-resolved spectroscopic experiments, real-time FTIR and holographic recording. It is shown that the efficiency of the photoinitiating...
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Kasha or state selective behavior in the photochemistry of ortho-nitrobenzaldehyde?

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP25057H, Paper

T. Schmierer, G. Ryseck, T. Villnow, N. Regner, P. Gilch
The title compound undergoes ultrafast hydrogen transfer upon photo absorption. Femtosecond spectroscopy shows that yields and time constants of this process are virtually not affected when tuning the excitation wavelength over a broad range.
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Long-living Structures of Photochromic Salicylaldehyde Azine: Polarity and Viscosity Effects from Nanoseconds to Hours

Photochem. Photobiol. Sci., 2012, Accepted Manuscript
DOI: 10.1039/C2PP25081K, Paper

Marcin Ziolek, Gotard Burdzinski, Abderrazzak Douhal
In this study, we report on the effects of solvent viscosity and polarity on the photochromic salicylaldehyde azine (SAA) molecule by examining the steady-state and uv-visible absorption results in the...
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Introduction to the themed issue dedicated to Kurt Schaffner

Photochem. Photobiol. Sci., 2012, 11,871-871
DOI: 10.1039/C2PP90018A, Editorial

The editors introduce the themed issue in honour of Kurt Schaffner on the occasion of his 80th birthday.
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Photocatalytic inactivation of influenza virus by titanium dioxide thin film

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP05414K, Paper

Ryuichi Nakano, Hitoshi Ishiguro, Yanyan Yao, Jitsuo Kajioka, Akira Fujishima, Kayano Sunada, Masafumi Minoshima, Kazuhito Hashimoto, Yoshinobu Kubota
Titanium dioxide (TiO₂) under ultraviolet (UV) light produces a strong oxidative effect and may therefore be used as a photocatalytic disinfectant.
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Specific inherent optical quantities of complex turbid inland waters, from the perspective of water classification

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP25061F, Paper

Deyong Sun, Yunmei Li, Qiao Wang, Chengfeng Le, Heng Lv, Changchun Huang, Shaoqi Gong
For optically complex turbid productive waters, the optical behavior of suspended particles is the keynote of characterizing the unordered variations of inherent optical properties (IOPs).
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[small beta]-Cyclodextrin polymer nanoparticles as carriers for doxorubicin and artemisinin: a spectroscopic and photophysical study

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP25014D, Paper

Resmi Anand, Francesco Manoli, Ilse Manet, Samia Daoud-Mahammed, Valentina Agostoni, Ruxandra Gref, Sandra Monti
[small beta]-Cyclodextrin-epichlorohydrin polymeric nanoparticles as promising carriers for doxorubicin and artemisinin: the CD spectra and/or the photophysics of the drug complexes provide information on binding mode and nanoparticle environment.
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Kinetic and analytical study of the photo-induced degradation of monuron by nitrates and nitrites under irradiation or in the dark

Photochem. Photobiol. Sci., 2012, Accepted Manuscript
DOI: 10.1039/C2PP25044F, Paper

Hadjira Joujou Boucheloukh, Tahar SEHILI, Nadia Kouachi, Kamel Djebbar
The photo-induced transformation of monuron (3-(4-chlorophenyl)-1,1 dimethylurea) was investigated in an aqueous solution containing nitrates and nitrites at 310 nm and 365 nm, respectively. In both NO3- and NO2- conditions,...
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Luciferase from Fulgeochlizus bruchi (Coleoptera:Elateridae), a Brazilian click-beetle with a single abdominal lantern: molecular evolution, biological function and comparison with other click-beetle luciferases

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP25037C, Paper

Danilo T. Amaral, Rogilene A. Prado, Vadim R. Viviani
The green-emitting luciferase from the single lantern (abdominal) of Fulgeochlizus bruchi click-beetle was cloned, characterized and compared with other click-beetle luciferases.
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Spectrochemistry and artificial color modulation of Cypridina luminescence: indirect evidence for chemiexcitation of a neutral dioxetanone and emission from a neutral amide

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP25020A, Communication

Pance Naumov, Chun Wu, Ya-Jun Liu, Yoshihiro Ohmiya
The spectrochemistry of cypridinid oxyluciferin from the small bioluminescent ostracod Vargula hilgendorfii reveals strong dependence of emission energy on the polarity and minor effects from the basicity of the medium.
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Photophysical study of 2-(4'-N,N-dimethylaminophenyl)oxazolo[4,5-b]pyridine in different solvents and at various pH

Photochem. Photobiol. Sci., 2012, Accepted Manuscript
DOI: 10.1039/C2PP25039J, Paper

Anasuya Mishra, G Krishnamoorthy
The spectral characteristics of 2-(4'-N,N-dimethylaminophenyl)oxazolo[4,5-b]pyridine (DMAPOP) have been investigated in solvents of different polarity and hydrogen bonding capacity. Unlike its imidazole analogue, DMAPOP emits single emission in both aprotic and...
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Stem cell-based photodynamic therapy

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP05417E, Paper

Tej B. Shrestha, Gwi M. Seo, Matthew T. Basel, Mausam Kalita, Hongwang Wang, David Villanueva, Marla Pyle, Sivasai Balivada, Raja Shekar Rachakatla, Heather Shinogle, Prem S. Thapa, David Moore, Deryl L. Troyer, Stefan H. Bossmann
Photodynamic therapy using gaussia luciferase secreting stem cells has resulted in retardation of the growth of deep-seated lung melanomas in black mice.
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Synthesis, photophysical, photochemical, DNA cleavage/binding and cytotoxic properties of pyrene oxime ester conjugates

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP25033K, Paper

Nilanjana Chowdhury, Sansa Dutta, Swagata Dasgupta, N. D. Pradeep Singh, Mithu Baidya, S. K. Ghosh
Fluorescent pyrene oxime esters with good biocompatibility, cellular uptake properties and efficient DNA cleaving abilities at longer wavelengths of UV light ([greater-than-or-equal]350 nm).
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On the singlet states of porphyrins, chlorins and bacteriochlorins and their ability to harvest red/infrared light

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP25021G, Paper

Carlos J. P. Monteiro, J. Pina, Mariette M. Pereira, Luis G. Arnaut
The singlet state lifetimes of halogenated tetraphenylporphyrins, chlorins and bacteriochlorin can be related to their molecular structure and spectroscopy using the Strickler-Berg equation, the energy-gap law and spin-orbit coupling.
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Facially-selective thymine-thymine photodimerization in TTT triads

Photochem. Photobiol. Sci., 2012, 11,889-892
DOI: 10.1039/C2PP25089F, Communication

Prakash P. Neelakandan, Zhengzheng Pan, Mahesh Hariharan, Frederick D. Lewis
Irradiation of alkane-linked DNA hairpins possessing TTT steps with flanking purine bases yields products identified as the cis-syn (2 + 2) dimers formed between the central thymine and its 3[prime or minute]- and 5[prime or minute]-neighbors.
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Effects of ultraviolet radiation and nutrients on the structure-function of phytoplankton in a high mountain lake

Photochem. Photobiol. Sci., 2012, 11,1087-1098
DOI: 10.1039/C2PP05336E, Paper

Nathalie Korbee, Presentacion Carrillo, M. Teresa Mata, Silvia Rosillo, Juan Manuel Medina-Sanchez, Felix L. Figueroa
The effect of high solar UVR and nutrient supply was studied in a phytoplankton community of a high mountain lake (La Caldera, Southern Spain) in order to determine the mechanisms involved in the higher apparent effect of UVR after nutrient input.
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Controlled surface trap state photoluminescence from CdS QDs impregnated in poly(methyl methacrylate)

Photochem. Photobiol. Sci., 2012, Advance Article
DOI: 10.1039/C2PP25023C, Paper

Santanu Karan, Manisree Majumder, Biswanath Mallik
A simple microwave irradiation (MW) method was employed for in situ impregnation of CdS QDs in poly(methyl methacrylate). The fine size control of QDs was achieved from 2.9-5.5 nm and showed surface trap state photoluminescence.
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