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A malonitrile-functionalized metal-organic framework for hydrogen sulfide detection and selective amino acid molecular recognition.

ABSTRACT: A novel porous polymeric fluorescence probe, MN-ZIF-90, has been designed and synthesized for quantitative hydrogen sulfide (H2S) fluorescent detection and highly selective amino acid recognition. This distinct crystalline structure, derived from rational design and malonitrile functionalization, can trigger significant enhancement of its fluorescent intensity when exposed to H2S or cysteine molecules. Indeed this new metal-organic framework (MOF) structure shows high selectivity of biothiols over other amino acids and exhibits favorable stability. Moreover, in vitro viability assays on HeLa cells show low cytotoxicity of MN-ZIF-90 and its imaging contrast efficiency is further demonstrated by fluorescence microscopy studies. This facile yet powerful strategy also offers great potential of using open-framework materials (i.e. MOFs) as the novel platform for sensing and other biological applications.

SUBMITTER: Li H 

PROVIDER: S-EPMC3952146 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature

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A malonitrile-functionalized metal-organic framework for hydrogen sulfide detection and selective amino acid molecular recognition.

Li Haiwei H   Feng Xiao X   Guo Yuexin Y   Chen Didi D   Li Rui R   Ren Xiaoqian X   Jiang Xin X   Dong Yuping Y   Wang Bo B  

Scientific reports 20140313

A novel porous polymeric fluorescence probe, MN-ZIF-90, has been designed and synthesized for quantitative hydrogen sulfide (H2S) fluorescent detection and highly selective amino acid recognition. This distinct crystalline structure, derived from rational design and malonitrile functionalization, can trigger significant enhancement of its fluorescent intensity when exposed to H2S or cysteine molecules. Indeed this new metal-organic framework (MOF) structure shows high selectivity of biothiols ov  ...[more]

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