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Contents list for Photochemical & Photobiological Sciences, issue 7, 2009
Front cover
Photochem. Photobiol. Sci., 2009, 8, 889
DOI: 10.1039/b911927m
Contents and Chemical Biology
Photochem. Photobiol. Sci., 2009, 8, 891
DOI: 10.1039/b911928k
Editorial
Introduction to the themed issue in honour of Esther Oliveros
Photochem. Photobiol. Sci., 2009, 8, 901
DOI: 10.1039/b910547f
This issue of Photochemical & Photobiological Sciences is dedicated to Esther Oliveros, a gifted researcher and highly motivating teacher, but, above all, a charming lady and a helpful colleague for the many people who have had the privilege to work with her and to experience her devotion to science and to the scientific community.
Perspective
Sensitized formation of oxidatively generated damage to cellular DNA by UVA radiation
Jean Cadet, Thierry Douki, Jean-Luc Ravanat and Paolo Di Mascio,
Photochem. Photobiol. Sci., 2009, 8, 903
DOI: 10.1039/b905343n
UVA-sensitized oxidation of cellular DNA with guanine as the main target predominantly by singlet oxygen and to a lesser extent by hydroxyl radical.
Communication
Physical and chemical quenching rates and their influence on stereoselective photooxygenation of oxazolidinone-functionalized enecarbamates
Marissa R. Solomon, J. Sivaguru, Steffen Jockusch, Waldemar Adam and Nicholas J. Turro,
Photochem. Photobiol. Sci., 2009, 8, 912
DOI: 10.1039/b903848e
Physical and chemical quenching rate constants were measured for the reaction of singlet oxygen with oxazolidinone-functionalized enecarbamates to investigate the role of vibrational deactivation in product stereoselectivity.
Papers
Photoreactions of substituted o-cresyl acylates in cyclohexane and in polyethylene films. The influences of intra- and inter-molecular 
crowding
effects
Yu-Zhe Chen and Richard G. Weiss,
Photochem. Photobiol. Sci., 2009, 8, 916
DOI: 10.1039/b902109d
Photoreactions of four o-cresyl acylates which differ in the number of phenyl groups attached to the methyl group of the cresyl part and the length of the acyl chain were investigated in cyclohexane and in polyethylene films.
Water disinfection with Ru(II) photosensitisers supported on ionic porous silicones
Francisco Manjón, David García-Fresnadillo and Guillermo Orellana,
Photochem. Photobiol. Sci., 2009, 8, 926
DOI: 10.1039/b902014d
Singlet oxygen production in heterogeneous media using sunlight leads to efficient water disinfection as tested with E. faecalis.
Photophysics and photochemistry of rose bengal bound to human serum albumin
Emilio Alarcón, Ana Maria Edwards, Alexis Aspée, Claudio D. Borsarelli and Eduardo A. Lissi,
Photochem. Photobiol. Sci., 2009, 8, 933
DOI: 10.1039/b901056d
Photophysics and photochemistry of rose bengal bound to human serum albumin depends on the number of dye molecules associated to each protein molecule.
Oxidation of polystyrene aerosols by VUV-photolysis and/or ozone
José Salas Vicente, Juan López Gejo, Sonja Rothenbacher, Sumalekshmy Sarojiniamma, Eliso Gogritchiani, Michael Wörner, Gerhard Kasper and André M. Braun,
Photochem. Photobiol. Sci., 2009, 8, 944
DOI: 10.1039/b902749a
Controlled oxidation of aerosols of polystyrene nanoparticles by VUV-photolysis and/or O3 produces functionalized support materials of high application potential due to their increased chemical reactivity and hydrophilicity.
Kinetics of nitrobenzene and 4-nitrophenol degradation by UV irradiation in the presence of nitrate and nitrite ions
Fernando S. García Einschlag, Juan I. Felice and Juan M. Triszcz,
Photochem. Photobiol. Sci., 2009, 8, 953
DOI: 10.1039/b901835b
Nitrobenzene and 2-nitrophenol degradation rates induced by UV irradiation of nitrite and nitrate are quantitatively described by a simplified reaction model.
Photolysis of an asymmetrically substituted diazene in solution and in the crystalline state
Pablo Ariel Hoijemberg, Steven D. Karlen, Carlos Norberto Sanramé, Pedro Francisco Aramendía and Miguel Angel García-Garibay,
Photochem. Photobiol. Sci., 2009, 8, 961
DOI: 10.1039/b902272d
The solid state photolysis of (1-biphenyl-4-yl-1-methyl-ethyl)-tert-butyl diazene displays a high selectivity for one of the disproportionation reactions.
Solvent effect on the UV/Vis absorption and fluorescence spectroscopic properties of berberine
Marta Susana Díaz, Mónica Liliana Freile and María Isela Gutiérrez,
Photochem. Photobiol. Sci., 2009, 8, 970
DOI: 10.1039/b822363g
Solvatochromism of berberine.
Heterogeneous photocatalytic degradation of gallic acid under different experimental conditions
Natalia Quici and Marta I. Litter,
Photochem. Photobiol. Sci., 2009, 8, 975
DOI: 10.1039/b901904a
The mechanisms taking place in these complex systems are proposed, paying particular attention to the important charge transfer reaction of the Fe(III)–Gal complex operative in dark conditions.
Photolysis of ferric ions in the presence of sulfate or chloride ions: implications for the photo-Fenton process
Amilcar Machulek Jr., José Ermírio F. Moraes, Laura T. Okano, Cristina A. Silvério and Frank H. Quina,
Photochem. Photobiol. Sci., 2009, 8, 985
DOI: 10.1039/b900553f
The effect of sulfate or chloride ions on the net yield of Fe2+ during the photolysis of Fe3+ has been investigated in aqueous solution at pH 3.0 and 1.0 in the absence of hydrogen peroxide.
A combined theoretical and experimental study on the oxidation of fulvic acid by the sulfate radical anion
Pedro M. David Gara, Gabriela N. Bosio, Mónica C. Gonzalez, Nino Russo, Maria del Carmen Michelini, Reinaldo Pis Diez and Daniel O. Mártire,
Photochem. Photobiol. Sci., 2009, 8, 992
DOI: 10.1039/b900961b
Flash-photolysis results supported by theoretical (DFT) calculations tell us that sulfate radical anions form H-bonded adducts with fulvic acids.
Light and dark biocidal activity of cationic poly(arylene ethynylene) conjugated polyelectrolytes
Thomas S. Corbitt, Liping Ding, Eunkyung Ji, Linnea K. Ista, Katsu Ogawa, Gabriel P. Lopez, Kirk S. Schanze and David G. Whitten,
Photochem. Photobiol. Sci., 2009, 8, 998
DOI: 10.1039/b902646k
Left to right: Confocal microscopy images of Pseudomonas aeruginosa (PAO1) when exposed to thiophene polymer in solution, thiophene polymer coated beads in the dark and thiophene polymer coated beads under visible light irradiation.
Photophysics and stability of cyano-substituted boradiazaindacene dyes
Katarzyna Cie
lik-Boczula, Kevin Burgess, Lingling Li, Binh Nguyen, Lesley Pandey, Wim M. De Borggraeve, Mark Van der Auweraer and Noël Boens,
Photochem. Photobiol. Sci., 2009, 8, 1006
DOI: 10.1039/b905054j
The spectroscopic/photophysical properties and the (in)stability of two cyano-substituted BODIPY derivatives have been investigated.
Reactivity of hydroxyl radicals with neonicotinoid insecticides: mechanism and changes in toxicity
María L. Dell'Arciprete, Lucas Santos-Juanes, Antonio Arques Sanz, Rafael Vicente, Ana M. Amat, Jorge P. Furlong, Daniel O. Mártire and Mónica C. Gonzalez,
Photochem. Photobiol. Sci., 2009, 8, 1016
DOI: 10.1039/b900960d
We investigate the reactivity of hydroxyl radicals towards three neonicotonoid insecticides, imidacloprid, thiacloprid and acetamiprid.
Optimisation of the chemical generation of singlet oxygen (1O2, 1
g) from the hydrogen peroxide–lanthanum(III) catalytic system using an improved NIR spectrometer
Christel Pierlot, Jacques Barbillat, Véronique Nardello-Rataj, Didier Mathieu, Michelle Sergent, Jean Marko and Jean-Marie Aubry,
Photochem. Photobiol. Sci., 2009, 8, 1024
DOI: 10.1039/b902835h
The chemical generation of 1O2 from the system H2O2–La(III) was optimized with a screening experimental design and an improved NIR spectrometer.
Application of solar advanced oxidation processes to the degradation of the antibiotic sulfamethoxazole
O. González, C. Sans, S. Esplugas and S. Malato,
Photochem. Photobiol. Sci., 2009, 8, 1032
DOI: 10.1039/b822658j
The most efficient light-assisted technology against pharmaceutical pollutants in waters: solar-based photo-Fenton.
Photocatalytic efficiencies of self-cleaning glasses. Influence of physical factors
L. Peruchon, E. Puzenat, J. M. Herrmann and C. Guillard,
Photochem. Photobiol. Sci., 2009, 8, 1040
DOI: 10.1039/b902139f
Influence of wavelength range and radiant flux of the UV irradiation on the degradation rate of stearic acid layer using a Pyrex filter (a) and a quartz filter (b).
The local and observed photochemical reaction rates revisited
Orlando M. Alfano, Horacio A. Irazoqui and Alberto E. Cassano,
Photochem. Photobiol. Sci., 2009, 8, 1047
DOI: 10.1039/b900191c
In photochemical reactions, when the reaction order with respect to the photon absorption rate is different from one or when absorption of radiation is not low, kinetic models of local validity cannot be extrapolated to the reaction volume without performing an averaging integral.
Photoinduced degradation of 2,4-dichlorophenol in water: influence of various Fe(III) carboxylates
Lei Wang, Changbo Zhang, Hana Mestankova, Feng Wu, Nansheng Deng, Gang Pan, Michèle Bolte and Gilles Mailhot,
Photochem. Photobiol. Sci., 2009, 8, 1059
DOI: 10.1039/b902607j
In the present work the degradation of 4-chlorophenol photoinduced by different Fe(III)–carboxylate complexes was studied and their efficiency were compared.
Fulvic acid-mediated phototransformation of mecoprop. A pH-dependent reaction
Sabrina Halladja, Alexandra ter Halle, Jean-François Pilichowski, Abdelaziz Boulkamh and Claire Richard,
Photochem. Photobiol. Sci., 2009, 8, 1066
DOI: 10.1039/b901306g
Elliott soil fulvic acid sensitized the phototransformation of mecoprop in aqueous medium. The significant enhancement of the reaction upon acidification might result from the capacity of protonated MCP to reach intra-humic microdomains or to a greater photosensitizing property of FA in acidic medium.
Back matter
Photochem. Photobiol. Sci., 2009, 8, 1072
DOI: 10.1039/b911930m
Back cover
Photochem. Photobiol. Sci., 2009, 8, 1075
DOI: 10.1039/b911931k
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