Integrated Logic Gate for Fluorescence Turn-on Detection of Histidine and Cysteine Based on Ag/Au Bimetallic Nanoclusters-Cu2+ Ensemble

	Integrated Logic Gate for Fluorescence Turn-on Detection of Histidine and Cysteine Based on Ag/Au Bimetallic Nanoclusters-Cu2+ Ensemble
	Sun,Jian; Yang,Fan; Zhao,Dan; Chen,Chuanxia; Yang,Xiurong
刊名	acs applied materials & interfaces
	2015
卷号	7 期号:12 页码:6860-6866
关键词	GOLD NANOCLUSTERS SELECTIVE DETECTION METAL NANOCLUSTERS RAPID SYNTHESIS QUANTUM DOTS LIVING CELLS PROBE NANOPARTICLES HOMOCYSTEINE DISEASE
通讯作者	yang,xr
英文摘要	by means of employing 11-mercaptoundecanoic acid (11-mua) as a reducing agent and protecting ligand, we present straightforward one-pot preparation of fluorescent ag/au bimetallic nanoclusters (namely agauncs@11-mua) from agno3 and haucl4 in alkaline aqueous solution at room temperature. it is found that the fluorescence of agauncs@11-mua has been selectively quenched by cu2+ ions, and the nonfluorescence off-state of the as-prepared agauncs@11-mua-cu2+ ensemble can be effectively switched on upon the addition of histidine and cysteine. by incorporating ni2+ ions and n-ethylmaleimide, this phenomenon is further exploited as an integrated logic gate and a specific fluorescence turn-on assay for selectively and sensitively sensing histidine and cysteine has been designed and established based on the original noncovalent agauncs@11-mua-cu2+ ensemble. under the optimal conditions, histidine and cysteine can be detected in the concentration ranges of 0.25-9 and 0.25-7 mu m; besides, the detection limits are found to be 87 and 111 nm (s/n = 3), respectively. furthermore, we demonstrate that the proposed agauncs@11-mua-based fluorescent assay can be successfully utilized for biological fluids sample analysis.
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/64743]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Sun,Jian,Yang,Fan,Zhao,Dan,et al. Integrated Logic Gate for Fluorescence Turn-on Detection of Histidine and Cysteine Based on Ag/Au Bimetallic Nanoclusters-Cu2+ Ensemble[J]. acs applied materials & interfaces,2015,7(12):6860-6866.
APA	Sun,Jian,Yang,Fan,Zhao,Dan,Chen,Chuanxia,&Yang,Xiurong.(2015).Integrated Logic Gate for Fluorescence Turn-on Detection of Histidine and Cysteine Based on Ag/Au Bimetallic Nanoclusters-Cu2+ Ensemble.acs applied materials & interfaces,7(12),6860-6866.
MLA	Sun,Jian,et al."Integrated Logic Gate for Fluorescence Turn-on Detection of Histidine and Cysteine Based on Ag/Au Bimetallic Nanoclusters-Cu2+ Ensemble".acs applied materials & interfaces 7.12(2015):6860-6866.