PPS Blog

Issue 3 of Photochemical & Photobiological Sciences is now available to read online.

The front cover this month feature work by Halan Prakash and colleagues from the Birla Institute of Technology and Science, India, who looked at the ability of persulphate to cause degradation of organic contaminants and also its effect on bacteria in aqueous media. The team used methyl orange, a model azo dye, and Gram positive and negative bacteria. Visible light activation of persulphate was achieved using ruthenium(II) polypyridyl complexes, which produced sulphate radicals and led to significant degradation of methyl orange as well as complete inactivation of bacteria.

Photodegradation of methyl orange and photoinactivation of bacteria by visible light activation of persulphate using a tris(2,2′-bipyridyl)ruthenium(II) complex, Gokulakrishnan Subramanian, Priyadarshini Parakh and Halan Prakash, Photochem. Photobiol. Sci., 2013, 12, 456-466

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Welcome to issue 1 of Photochemical & Photobiological Sciences for 2013!  This is a themed issue on “Current topics in photodermatology” – read the editorial by Guest Editors Alex Anstey and Fraz Trautinger here.

The front cover of this issue highlights a perspective article by Alex Anstey and Flora Kiss which looks at UVB-mediated photosensitivity disorders. The authors look at the congenital skin disorders associated with photosensitivity to UVB, although highlight that photosensitivity to UVB alone is very rare and more typically includes photosensitivity to UVA. These rare disorders provide opportunities to study and gain insights into the diverse mechanisms involved in mediating photosentivity of these conditions.

Read the full article for free!

A review of UVB-mediated photosensitivity disorders, F. Kiss and A. V. Anstey, Photochem. Photobiol. Sci., 2013, 12, 35-44

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The last issue of the year for Photochemical & Photobiological Sciences is now published online.  This issue includes a collection of articles looking at the issues surrounding potential increase of vitamin D status to provide better health.  Read the Editorial by Guest Editor Vivienne Reeve here.

The front cover of this issue features work by Pameli Datta and colleagues from Cophagen University Hospital, Lillebaelt Hospital and the Danish Meteorological Institute, Denmark.  The authors compared the doses of natural solar ultraviolet radiation (UVR) and artificial UVR needed to increase serum 25-hydroxyvitamin-D3.  The team found that artificial UVR was estimated to be at least eight times more effective in inducing 25-hydroxyvitamin-D3 synthesis than solar UVR.

Read the full article for free for 6 weeks!

Increase in serum 25-hydroxyvitamin-D3 in humans after solar exposure under natural conditions compared to artificial UVB exposure of hands and face, Pameli Datta, Morten Karsten Bogh, Peter Olsen, Pia Eriksen, Anne Vibeke Schmedes, Mette Marie-Louise Grage, Peter Alshede Philipsen and Hans Christian Wulf, Photochem. Photobiol. Sci., 2012, 11, 1817-1824

You may also be interested to read these articles on vitamin D – free to access for 3 weeks:

Serum 25-hydroxyvitamin-D responses to multiple UV exposures from solaria: inferences for exposure to sunlight, Richard McKenzie, Robert Scragg, Ben Liley, Paul Johnston, John Wishart, Alistair Stewart and Roshani Prematunga, Photochem. Photobiol. Sci., 2012, 11, 1174-1185

A computational model for previtamin D3 production in skin, Merve Meinhardt-Wollweber and Ronald Krebs, Photochem. Photobiol. Sci., 2012, 11, 731-737

Vitamin D-fence, Katie M. Dixon,  Vanessa B. Sequeira,  Aaron J. Camp and Rebecca S. Mason, Photochem. Photobiol. Sci., 2010, 9, 564-570

Is the action spectrum for the UV-induced production of previtamin D₃ in human skin correct?, Mary Norval, Lars Olof Björn and Frank R. de Gruijl, Photochem. Photobiol. Sci., 2010, 9, 11-17

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The latest issue of Photochemical & Photobiological Sciences is now available online.  This issue is dedicated to Jean-Pierre Desvergne in honour of his lasting contributions to the field of photochemistry.  Read the Editorial here.

The front cover of this issue highlights a recent Perspective article by Norbert Hoffmann from CNRS and the University of Reims Champagne-Ardenne, France, on “Photochemical reactions of aromatic compounds and the concept of the photon as a traceless reagent.” In this perspective, Hoffmann focuses on the photochemical transformations of aromatic compounds (mainly benzene derivatives) and their applications to organic synthesis.  The various transformations looked at do not require chemical activation and instead use photons as the reagent.  Examples include photocycloaddition reactions, including [2 + 3] meta photocycloaddition, and photochemical electron transfer induced reactions which have been intensely studied in recent years.  Hoffman shows that mainly of these procedures can be applied to the synthesis of complex compounds, and although they are not yet used in industry, the ecological and economical potential of these processes is demonstrated.

Read the full article for free for 6 weeks!

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