Archive for May, 2012

Top ten most accessed articles in April

30 May 2012

This month sees the following articles in PPS that are in the top ten most accessed:-

On the genesis of heterogeneous photocatalysis: a brief historical perspective in the period 1910 to the mid-1980s
N. Serpone, A. V. Emeline, S. Horikoshi, V. N. Kuznetsov and V. K. Ryabchuk
Photochem. Photobiol. Sci., 2012, Advance Article, DOI: 10.1039/C2PP25026H

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

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

The human health effects of ozone depletion and interactions with climate change
M. Norval, R. M. Lucas, A. P. Cullen, F. R. de Gruijl, J. Longstreth, Y. Takizawa and J. C. van der Leun
Photochem. Photobiol. Sci., 2011,10, 199-225, DOI: 10.1039/C0PP90044C

Photo-oxidation of proteins
David I. Pattison, Aldwin Suryo Rahmanto and Michael J. Davies
Photochem. Photobiol. Sci., 2011, Advance Article, DOI: 10.1039/C1PP05164D

Applications of p-hydroxyphenacyl (pHP) and coumarin-4-ylmethyl photoremovable protecting groups
Richard S. Givens, Marina Rubina and Jakob Wirz
Photochem. Photobiol. Sci., 2012, 11, 472-488, DOI: 10.1039/C2PP05399C

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

Evidence that a single bioluminescent system is shared by all known bioluminescent fungal lineages
Anderson G. Oliveira, Dennis E. Desjardin, Brian A. Perry and Cassius V. Stevani
Photochem. Photobiol. Sci., 2012,11, 848-852, DOI: 10.1039/C2PP25032B

Exploring structural change of protein bovine serum albumin by external perturbation using extrinsic fluorescence probe: spectroscopic measurement, molecular docking and molecular dynamics simulation
Sankar Jana, Shalini Ghosh, Sasanka Dalapati and Nikhil Guchhait
Photochem. Photobiol. Sci., 2012, 11, 323-332, DOI: 10.1039/C1PP05180F

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

Why not take a look at the articles today and blog your thoughts and comments below.

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Themed issue dedicated to Kurt Schaffner now online

25 May 2012

Issue 6 coverPPS issue 6 is now online and is a themed issue in honour of Kurt Schaffner on the occasion of his 80th birthday.  You can read the introduction to this issue by Editors Silvia E. Braslavsky, Santi Nonell and Frans De Schryver here.  Read the full themed issue online here.

The front cover features work form Tatsuo Arai and co-workers from the Graduate School of Pure and Applied Sciences, University of Tsukuba, Japan.  Their paper investigates photoisomerization and energy transfer in naphthalene-terminated stilbene dentrimers.  They demonstrate photoisomerazion via highly efficient energy transfer from the dendron group to the core stilbene and that intramolecular energy transfer efficiency was controlled by trans-cis photoisomerization.

Interested in knowing more?  Read the full article for free for 6 weeks!

Photoisomerization and energy transfer in naphthalene-terminated stilbene dendrimers
Satoshi Nakazato ,  Tsutomu Takizawa and Tatsuo Arai
Photochem. Photobiol. Sci., 2012, 11, 885-888 DOI: 10.1039/C2PP05328D

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Photocatalytic Virus Inactivation by Titanium Dioxide

16 May 2012

C2PP05414K The photocatalytic inactivation of influenza virus using titanium dioxide thin film is demonstrated in a recently published paper from Ryuichi Nakano and co-workers from Japan.  Titanium dioxide (TiO2) under ultraviolet (UV) light produces a strong oxidative effect and may therefore be used as a photocatalytic disinfectant.  Photocatalytic inactivation of bacteria is well known, however few studies have addressed virus inactivation. 

In this paper the inactivation of influenza virus is demonstrated using TiO2 nanoparticles immobilized on a glass plate.  Viral titers were dramatically reduced by the photocatalytic reaction and the influence of UV intensity, irradiation time and bovine serum albumin concentration in viral suspensions was investigated.  It was demonstrated that effective inactivation occurs under an environmental level of UV-A intensity.  In addition, the International Organization for Standardization (ISO) methodology for anti-bacterial effects of TiO2 photocatalysis can be useful for the evaluation of antiviral activity with only a small modification to the methodology.

Interested in knowing more?  Read the full article for free until June 14th by clicking the link below!

Photocatalytic inactivation of influenza virus by titanium dioxide thin film
Ryuichi Nakano, Hitoshi Ishiguro, Yanyan Yao, Jitsuo Kajioka, Akira Fujishima, Kayano Sunada, Masafumi Minoshima, Kazuhito Hashimoto and Yoshinobu Kubota
Photochem. Photobiol. Sci., 2012, DOI: 10.1039/C2PP05414K

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TT-dimer formation in DNA hairpins possessing TTT triads: effect of flanking purines

09 May 2012

C2PP25089FIn this communication recently published online as an ‘Accepted Manuscript’ Frederick Lewis and co-workers from the USA and India investigate the effect of flanking purine bases on the 3’ vs the 5’-TT dimer upon UV irradiation of DNA hairpins possessing TTT steps with flanking purine bases. 

The study demonstrates moderate to high facial selectivity for the 3’-dimer over the 5’ dimer depending on the identity and location of flanking purine bases.  The effects of flanking purines on facial selectivity are attributed to a combination of their ground state conformational effects and electron transfer quenching.

Interested in knowing more? Read the full article for free until June 13th.

Facially-Selective Thymine-Thymine Photodimerization in TTT Triads
Prakash P Neelakandan, Zhengzheng Pan, Mahesh Hariharan and Frederick D Lewis
Photochem. Photobiol. Sci., 2012, Accepted Manuscript, DOI: 10.1039/C2PP25089F

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Top ten most accessed articles in March

01 May 2012

This month sees the following articles in PPS that are in the top ten most accessed:-

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

Photo-oxidation of proteins
David I. Pattison, Aldwin Suryo Rahmanto and Michael J. Davies
Photochem. Photobiol. Sci., 2011, Advance Article, DOI: 10.1039/C1PP05164D

Applications of p-hydroxyphenacyl (pHP) and coumarin-4-ylmethyl photoremovable protecting groups
Richard S. Givens, Marina Rubina and Jakob Wirz
Photochem. Photobiol. Sci., 2012, 11, 472-488, DOI: 10.1039/C2PP05399C

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

Using photolabile protecting groups for the controlled release of bioactive volatiles
Andreas Herrmann
Photochem. Photobiol. Sci., 2012, 11, 446-459, DOI: 10.1039/C1PP05231D

Environmental effects of ozone depletion and its interactions with climate change: progress report, 2011
United Nations Environment Programme, Environmental Effects Assessment Panel
Photochem. Photobiol. Sci., 2012, 11, 13-27, DOI: 10.1039/C1PP90033A

Bichromophoric fluorescent photolabile protecting group for alcohols and carboxylic acids
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/C1PP05317E

Exploring structural change of protein bovine serum albumin by external perturbation using extrinsic fluorescence probe: spectroscopic measurement, molecular docking and molecular dynamics simulation
Sankar Jana, Shalini Ghosh, Sasanka Dalapati and Nikhil Guchhait
Photochem. Photobiol. Sci., 2012, 11, 323-332, DOI: 10.1039/C1PP05180F

Energy transfer from a rhodamine antenna to a ruthenium-bipyridine center
Oscar Filevich, Beatriz García-Acosta and Roberto Etchenique
Photochem. Photobiol. Sci., 2012, Advance Article, DOI: 10.1039/C2PP05415A

Photoelectrochemical, photophysical and morphological studies of electrostatic layer-by-layer thin films based on poly(p-phenylenevinylene) and single-walled carbon nanotubes
L. C. P. Almeida, V. Zucolotto, R. A. Domingues, T. D. Z. Atvars and A. F. Nogueira
Photochem. Photobiol. Sci., 2011, 10, 1766-1772, DOI: 10.1039/C1PP05221G

Why not take a look at the articles today and blog your thoughts and comments below.

Fancy submitting an article to PPS? Then why not submit to us today or alternatively email us your suggestions.

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