Visible light accelerates the ultraviolet A‐induced degradation of eumelanin and pheomelanin

2018 ◽  
Vol 32 (3) ◽  
pp. 441-447 ◽  
Author(s):  
Shosuke Ito ◽  
Ludger Kolbe ◽  
Gudrun Weets ◽  
Kazumasa Wakamatsu
Keyword(s):  
2011 ◽  
Vol 27 (6) ◽  
pp. 336-337 ◽  
Author(s):  
Giacomo Duchini ◽  
Wolfgang Bäumler ◽  
Andreas J. Bircher ◽  
Kathrin Scherer

2020 ◽  
Vol 19 (10) ◽  
pp. 1262-1270 ◽  
Author(s):  
Luke Horton ◽  
Angeli Eloise Torres ◽  
Shanthi Narla ◽  
Alexis B. Lyons ◽  
Indermeet Kohli ◽  
...  

There is evidence that other wavelengths beyond the traditional germicidal 254 nm UVC – namely far UVC (222 nm), ultraviolet B, ultraviolet A, visible light, and infrared radiation – have germicidal properties; however, data on UVC is the most robust.


1982 ◽  
Vol 69 (2) ◽  
pp. 341-344 ◽  
Author(s):  
Robert P. Trocine ◽  
John D. Rice ◽  
Gary N. Wells

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Chen-Yu Chang ◽  
Yung-Hsu Hsieh

The purpose of this research is to develop a photocatalytic TiO2that can be activated by visible light and can be conveniently recollected for reusing. This research synthesizes the 20 to 40 nm TiO2/Fe3O4particles with magnetization of 5.8 emu/g using the modified sol-gel method followed by 500°C calcinations. The experiment verified that visible fluorescent light (VFL, contains no UV-A) could activate the photocatalytic activity of TiO2/Fe3O4particles as did ultraviolet A light (UV-A, 360 nm). Regular magnets can be used to separate TiO2/Fe3O4particles from solution. The results indicate that VFL-sirradiated TiO2/Fe3O4particles could decompose isopropanol (IPA) in the absence of UV-A and the issue of TiO2/Fe3O4recollection from water for reusing is also resolved.


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