Reactive photonic film for label-free and selective sensing of cyanide |
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| Authors: | Li Xuesong Peng Lihua Cui Jiecheng Li Weina Lin Changxu Xu Dan Tian Tian Zhang Guanxin Zhang Deqing Li Guangtao |
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| Affiliation: | Key Lab of Organic Optoelectronic and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China. |
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| Abstract: | 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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