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Reversible Antimicrobial Photoswitching in Nanosilver
Author(s) -
Gunawan Cindy,
Teoh Wey Yang,
Marquis Christopher P.,
Lifia Juniahani,
Amal Rose
Publication year - 2009
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200801202
Subject(s) - antimicrobial , photochromism , nanotechnology , chemistry , materials science , organic chemistry
Reversible antimicrobial photoswitching of nanosilver on a semiconductor support using a facile and optically selective approach is demonstrated. The non‐intrusive cyclical irradiation by UV‐A (300–400 nm) and visible light (>450 nm) result in controlled oxidation state dynamics of the nanosilver, which in turn allows its antimicrobial activity to be switched off and on repeatedly (see image).