Ultrasensitive Visual Sensing of Molybdate Based on Enzymatic-like Etching of Gold Nanorods

doi:10.1021/acs.langmuir.5b02113

YIC-IR > 中国科学院海岸带环境过程与生态修复重点实验室 > 海岸带环境工程技术研究与发展中心

	Ultrasensitive Visual Sensing of Molybdate Based on Enzymatic-like Etching of Gold Nanorods
	Zhang, ZY1,2,3 ; Chen, ZP1,2 ; Chen, LX1,2 ; Chen, ZP (reprint author), Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC, YICCAS, Yantai 264003, Shandong, Peoples R China. zhpchen@yic.ac.cn 1,2
发表期刊	LANGMUIR
ISSN	0743-7463
	2015-08-25
卷号	31 期号:33 页码:9253-9259
DOI	10.1021/acs.langmuir.5b02113
产权排序	[Zhang, Zhiyang; Chen, Zhaopeng; Chen, Lingxin] Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC, YICCAS, Yantai 264003, Shandong, Peoples R China; [Zhang, Zhiyang; Chen, Zhaopeng; Chen, Lingxin] Chinese Acad Sci, Shandong Prov Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res YIC, YICCAS, Yantai 264003, Shandong, Peoples R China; [Zhang, Zhiyang] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
作者部门	中科院海岸带环境过程与生态修复重点实验室
英文摘要	Here, we have developed a novel approach to the visual detection of molybdate with high sensitivity and selectivity in aqueous media based on the combination of catalytic formation of iodine and iodine-mediated etching of gold nanorods. In weak acid solution, like peroxidase, molybdate can catalyze the reaction between H2O2 and I- to produce I-2, a moderate oxidant, which then etches gold nanorods preferentially along the longitudinal direction in the presence of hexadecyltrimethylammonium bromide. The etching results in the longitudinal localized surface plasmon resonance extinction peak shifts to short wavelength, accompanied by a color change from blue to red. Under optimal conditions, this sensor exhibits good sensitivity with a detection limit of 1.0 nM. The approach is highlighted by its high selectivity and tolerance to interference, which enables the sensor to detect molybdate directly in real samples, such as tap water, drinking water, and seawater. In addition, perhaps the proposed sensing strategy can be also used for other targets that can selectively regulate the formation of I-2 under given conditions.
文章类型	Article
收录类别	SCI
语种	英语
关键词[WOS]	ATOMIC-ABSORPTION-SPECTROMETRY ; LIQUID-LIQUID MICROEXTRACTION ; PLASMA-MASS SPECTROMETRY ; COLORIMETRIC SENSOR ; DIRECTED OXIDATION ; HYDROGEN-PEROXIDE ; CATALYTIC METHOD ; AQUEOUS-SOLUTION ; TRACE AMOUNTS ; MOLYBDENUM
研究领域[WOS]	Chemistry ; Materials Science
WOS记录号	WOS:000360324000033
引用统计	被引频次：56[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/10027
专题	中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心中国科学院海岸带环境过程与生态修复重点实验室
通讯作者	Chen, ZP (reprint author), Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC, YICCAS, Yantai 264003, Shandong, Peoples R China. zhpchen@yic.ac.cn
作者单位	1.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC, YICCAS, Yantai 264003, Shandong, Peoples R China. 2.Chinese Acad Sci, Shandong Prov Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res YIC, YICCAS, Yantai 264003, Shandong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, ZY,Chen, ZP,Chen, LX,et al. Ultrasensitive Visual Sensing of Molybdate Based on Enzymatic-like Etching of Gold Nanorods[J]. LANGMUIR,2015,31(33):9253-9259.
APA	Zhang, ZY,Chen, ZP,Chen, LX,&Chen, ZP .(2015).Ultrasensitive Visual Sensing of Molybdate Based on Enzymatic-like Etching of Gold Nanorods.LANGMUIR,31(33),9253-9259.
MLA	Zhang, ZY,et al."Ultrasensitive Visual Sensing of Molybdate Based on Enzymatic-like Etching of Gold Nanorods".LANGMUIR 31.33(2015):9253-9259.

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