Archive for the ‘Uncategorized’ Category

Photochemical & Photobiological Sciences issue 6 is now available online

Issue 6 of Photochemical & Photobiological Sciences is now available to read online.

The front cover this month features work by Mathias O. Senge and co-workers from Dublin, Ireland. In their work, the authors describe how 5,10-A2B2 porphyrins provide diverse nonlinear absorptive responses in the ns regime at 532 nm depending on the structural features.

Read the article in full – it’s free to access for the next six weeks:
Nonlinear absorption properties of 5,10-A2B2 porphyrins – correlation of molecular structure with the nonlinear responses
M. Zawadzka, J. Wang, W.J. Blau and M.O. Senge,
Photochem. Photobiol. Sci., 2013,12, 996-1007, DOI: 10.1039/C3PP25410K

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Top 10 most accessed articles in February

For Photochemical & Photobiological Sciences, the top 10 most accessed articles in February were as follows:

Signaling mechanisms of LOV domains: new insights from molecular dynamics studies
Peter L. Freddolino, Kevin H. Gardner and Klaus Schulten  
Photochem. Photobiol. Sci., 2013, Advance Article
DOI: 10.1039/C3PP25400C, Paper

 UV-induced DNA damage and repair: a review
Rajeshwar P. Sinha and Donat-P. Häder  
Photochem. Photobiol. Sci., 2002, 1, 225-236
DOI: 10.1039/B201230H, Perspective

Photochemical properties of multi-azobenzene compounds
Julia Bahrenburg, Claudia M. Sievers, Jan Boyke Schönborn, Bernd Hartke, Falk Renth, Friedrich Temps, Christian Näther and Frank D. Sönnichsen  
Photochem. Photobiol. Sci., 2013, 12, 511-518
DOI: 10.1039/C2PP25291K, Paper

UV–vis spectroscopy of the coupling products of the palladium-catalyzed C–H arylation of the BODIPY core
Lina Wang, Bram Verbelen, Claire Tonnelé, David Beljonne, Roberto Lazzaroni, Volker Leen, Wim Dehaen and Noël Boens  
Photochem. Photobiol. Sci., 2013, 12, 835-847
DOI: 10.1039/C3PP25385F, Paper

The Orange Carotenoid Protein: a blue-green light photoactive protein
Diana Kirilovsky and Cheryl A. Kerfeld  
Photochem. Photobiol. Sci., 2013, Advance Article
DOI: 10.1039/C3PP25406B, Perspective

Targeted photodynamic therapy of breast cancer cells using antibody–phthalocyanine–gold nanoparticle conjugates
Tanya Stuchinskaya, Miguel Moreno, Michael J. Cook, Dylan R. Edwards and David A. Russell 
Photochem. Photobiol. Sci
., 2011, 10, 822-831
DOI: 10.1039/C1PP05014A, Paper

Human safety review of “nano” titanium dioxide and zinc oxide
Karsten Schilling, Bobbie Bradford, Dominique Castelli, Eric Dufour, J. Frank Nash, Wolfgang Pape, Stefan Schulte, Ian Tooley, Jeroen van den Bosch and Florian Schellauf  
Photochem. Photobiol. Sci., 2010, 9, 495-509
DOI: 10.1039/B9PP00180H, Perspective

Effects of bis-carbazole based D–π-A sensitizers on solar energy capture in DSSCs
Bo Hyung Kim and Harold S. Freeman  
Photochem. Photobiol. Sci., 2013, 12, 421-431
DOI: 10.1039/C2PP25262G, Paper

Ozone depletion and climate change: impacts on UV radiation
R. L. McKenzie, P. J. Aucamp, A. F. Bais, L. O. Björn, M. Ilyas and S. Madronich  
Photochem. Photobiol. Sci., 2011, 10, 182-198
DOI: 10.1039/C0PP90034F, Perspective

Engineered photoreceptors as novel optogenetic tools
Andreas Möglich and Keith Moffat  
Photochem. Photobiol. Sci., 2010, 9, 1286-1300
DOI: 10.1039/C0PP00167H, Perspective

Take a look at the articles, and then let us know your thoughts and comments below.

Fancy submitting your own work to Phochemical & Photobiological Sciences? You can submit online today, or email us with your ideas and suggestions.

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Top 10 most accessed articles in January

For Photochemical & Photobiological Sciences, the top 10 most accessed articles in January were as follows:

Home-prepared anatase, rutile, and brookite TiO2 for selective photocatalytic oxidation of 4-methoxybenzyl alcohol in water: reactivity and ATR-FTIR study
Vincenzo Augugliaro, Vittorio Loddo, María José López-Muñoz, Carlos Márquez-Álvarez, Giovanni Palmisano, Leonardo Palmisano and Sedat Yurdakal
Photochem. Photobiol. Sci., 2009, 8, 663-669
DOI: 10.1039/B818353H, Paper

Photochemical properties of multi-azobenzene compounds
Julia Bahrenburg, Claudia M. Sievers, Jan Boyke Schönborn, Bernd Hartke, Falk Renth, Friedrich Temps, Christian Näther and Frank D. Sönnichsen
Photochem. Photobiol. Sci., 2013, 12, 511-518
DOI: 10.1039/C2PP25291K, Paper

Photoremovable protecting groups: reaction mechanisms and applications
Anna Paola Pelliccioli and Jakob Wirz
Photochem. Photobiol. Sci., 2002, 1, 441-458
DOI: 10.1039/B200777K, Perspective

Effects of ultraviolet radiation, visible light, and infrared radiation on erythema and pigmentation: a review
Lindsay R. Sklar, Fahad Almutawa, Henry W. Lim and Iltefat Hamzavi
Photochem. Photobiol. Sci., 2013, 12, 54-64
DOI: 10.1039/C2PP25152C, Perspective

Dirty hands: photodynamic killing of human pathogens like EHEC, MRSA and Candida within seconds
Anja Eichner, Fernanda Pereira Gonzales, Ariane Felgenträger, Johannes Regensburger, Thomas Holzmann, Wulf Schneider-Brachert, Wolfgang Bäumler and Tim Maisch
Photochem. Photobiol. Sci., 2013, 12, 135-147
DOI: 10.1039/C2PP25164G, Paper

Excitation energy migration and trapping on the surface of fluorescent poly(acrylic acid)-grafted polymer particles
Andreas Hennig, Soheil Hatami, Monika Spieles and Ute Resch-Genger
Photochem. Photobiol. Sci., 2013, Advance Article
DOI: 10.1039/C2PP25364J, Paper

Engineered photoreceptors as novel optogenetic tools
Andreas Möglich and Keith Moffat
Photochem. Photobiol. Sci., 2010, 9, 1286-1300
DOI: 10.1039/C0PP00167H, Perspective

UVA1 is skin deep: molecular and clinical implications
Angela Tewari, Mette M. L. Grage, Graham I. Harrison, Robert Sarkany and Antony R. Young
Photochem. Photobiol. Sci., 2013, 12, 95-103
DOI: 10.1039/C2PP25323B, Communication

Photoinduced formation of reversible dye radicals and their impact on super-resolution imaging
Sebastian van de Linde, Ivan Krstić, Thomas Prisner, Sören Doose, Mike Heilemann and Markus Sauer
Photochem. Photobiol. Sci., 2011, 10, 499-506
DOI: 10.1039/C0PP00317D, Paper

Photoactivatable fluorophores and techniques for biological imaging applications
Wen-hong Li and Genhua Zheng
Photochem. Photobiol. Sci., 2012, 11, 460-471
DOI: 10.1039/C2PP05342J, Perspective

Take a look at the articles then post your thoughts and comments below.

Interested in submitting your own work to Photochemical & Photobiological Sciences? You can submit online today, or email us with your comments and suggestions.

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Top 10 most accessed articles in 2012

Do you want to know what your colleagues were reading during 2012?  The following articles in Photochemical & Photobiological Sciences were the most accessed over the course of the year:

UV-induced DNA damage and repair: a review
Rajeshwar P. Sinha and Donat-P. Häder
Photochem. Photobiol. Sci., 2002,1, 225-236
DOI: 10.1039/B201230H, Perspective

Photoinduced formation of reversible dye radicals and their impact on super-resolution imaging
Sebastian van de Linde, Ivan Krstić, Thomas Prisner, Sören Doose, Mike Heilemann and Markus Sauer
Photochem. Photobiol. Sci., 2011,10, 499-506
DOI: 10.1039/C0PP00317D, Paper

Photo-oxidation of proteins
David I. Pattison, Aldwin Suryo Rahmanto and Michael J. Davies
Photochem. Photobiol. Sci., 2012,11, 38-53
DOI: 10.1039/C1PP05164D, Perspective

Engineered photoreceptors as novel optogenetic tools
Andreas Möglich and Keith Moffat
Photochem. Photobiol. Sci., 2010,9, 1286-1300
DOI: 10.1039/C0PP00167H, Perspective

Targeted photodynamic therapy of breast cancer cells using antibody–phthalocyanine–gold nanoparticle conjugates
Tanya Stuchinskaya, Miguel Moreno, Michael J. Cook, Dylan R. Edwards and David A. Russell
Photochem. Photobiol. Sci., 2011,10, 822-831
DOI: 10.1039/C1PP05014A, Paper

Photoactivatable fluorophores and techniques for biological imaging applications
Wen-hong Li and Genhua Zheng
Photochem. Photobiol. Sci., 2012,11, 460-471
DOI: 10.1039/C2PP05342J, Perspective

Photoremovable protecting groups: reaction mechanisms and applications
Anna Paola Pelliccioli and Jakob Wirz
Photochem. Photobiol. Sci., 2002,1, 441-458
DOI: 10.1039/B200777K, Perspective

Human safety review of “nano” titanium dioxide and zinc oxide
Karsten Schilling, Bobbie Bradford, Dominique Castelli, Eric Dufour, J. Frank Nash, Wolfgang Pape, Stefan Schulte, Ian Tooley, Jeroen van den Bosch and Florian Schellauf
Photochem. Photobiol. Sci., 2010,9, 495-509
DOI: 10.1039/B9PP00180H, Perspective

UV wavelength-dependent DNA damage and human non-melanoma and melanoma skin cancer
Gerd P. Pfeifer and Ahmad Besaratinia
Photochem. Photobiol. Sci., 2012,11, 90-97
DOI: 10.1039/C1PP05144J, Perspective

Controlled surface trap state photoluminescence from CdS QDs impregnated in poly(methyl methacrylate)
Santanu Karan, Manisree Majumder and Biswanath Mallik
Photochem. Photobiol. Sci., 2012,11, 1220-1232
DOI: 10.1039/C2PP25023C, Paper

Take a look at the articles and then post your thoughts and comments below.

Interested in submitting your own work to Photochemical & Photobiological Sciences? Submit online today, or email us with your suggestions.

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RSC book of the month: Shedding light on photosynthesis reactions

 Proton-Coupled Electron Transfer: A Carrefour of Chemical ReactivityIt has been 100 years, almost to the day, since Italian Chemist Giacomo Luigi Ciamician first proposed harnessing the sun’s power to produce energy.  Writing in Science, Ciamician stated “And if in a distant future the supply of coal becomes completely exhausted, civilization will not be checked by that, for life and civilization will continue as long as the sun shines!”.  With these words in mind, we have selected Proton-Coupled Electron Transfer: A Carrefour of Chemical Reactivity edited by Sebastiao Formosinho and Monica Barroso as the October book of the month. 

Amongst other topics, this fascinating book discusses both natural and artificial photosynthesis and highlights the importance of proton-coupled electron transfer in biological systems, in particularly for bioenergetic conversion. 

The book gives a good insight into current research on a vibrant topic. It is to be expected that it will be the first in a long upcoming list of publications, given the importance of PCET processes such as the activation of water, production of H2, reduction of CO2, and reduction of N2.”  Reviewed in Angewandte Chemie International Edition.

Using personal accounts of experimental examples this book will provide a unique insight into the current understanding of this important reaction type.

Let the sun shine on your reactions.

Interested in other books on catalysis? Read more in the RSC Catalysis Series.

You may also be interested in this Photochemical & Photobiological Sciences themed issue on ‘Photosciences: A look to the future‘ or this latest issue from Energy & Environmental Science on ‘Proton-coupled electron transfer.’

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PPS Issue 7 now online!

The latest issue of PPS is now available online!

The front cover of this issue features work by Falk Renth, Friedrich Temps and colleagues from the University of Kiel, Germany, who report the sequential photoisomerisation dynamics of the push-pull azobenzene Disperse Red 1.  Azobenzene forms the basis of a number of numerous derivatives with applications as photochromic switches, tiny light-driven molecular manipulators, actuators and engines, and small optical memory or logical devices.  However, to reach the ambitious applications and designs for optimised functional azobenzene devices, we need to have detailed knowledge of the molecular dynamics of these molecules under different conditions. 

Here the team looked at substituted azobenzene dye Dispersed Red 1 (DR1), which is an electron donor-electron acceptor dye and a so-called push-pull azobenzene.  The donor-acceptor substitution introduces a strong charge-transfer character to the ππ* electronic transition.  The authors studied the ultra-fast dynamics of this push-pull character after photoexcitation at λpump= 475 nm by femtosecond time-resolved transient absorption spectroscopy and fluorescence up-conversion spectroscopy. This study of the DR1 dye in solution has provided a basis for the interpretation of new experiments on the photodynamics of DR1 in complex environments and under application-relevant conditions.

This article is free to access for 6 weeks!  Click on the link below to find out more…

Sequential photoisomerisation dynamics of the push–pull azobenzene Disperse Red 1, Julia Bahrenburg, Katharina Röttger, Ron Siewertsen, Falk Renth and Friedrich Temps, Photochem. Photobiol. Sci., 2012, 11, 1210-1219 DOI: 10.1039/C2PP05400K

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