Journal
SMALL
Volume 8, Issue 4, Pages 612-618Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201101934
Keywords
photonic films; inverse opals; chemical sensors; cyanide
Categories
Funding
- NSFC [20533050, 50873051, 50673048]
- MOST [2007AA03Z07]
- transregional project [TRR61]
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Three-dimensional ordered inverse-opal films bearing a reactive trifluoroacetyl group are successfully constructed. Through the specific reaction between cyanide and trifluoroacetyl, the photonic films can selectively detect sub-micromolar levels of cyanide by distinct structural color change. Labeled molecules are not necessary for the sensing mechanism.
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