Dual-Mode Optical Nanosensor Based on Gold Nanoparticles and Carbon Dots for Visible Detection of As(III) in Water

doi:10.1021/acsanm.0c01647

	Dual-Mode Optical Nanosensor Based on Gold Nanoparticles and Carbon Dots for Visible Detection of As(III) in Water
	Li, Jian 1,2; Yang, Liang 1,3; Ruan, Yue 1,2; Chu, Suyun 1,2; Wang, Haidian 1; Li, Zhi 1,2; Jiang, Changlong 1; Liu, Bianhua 1,3; Yang, Linlin 1,3; Zhang, Zhongping 1,4
刊名	ACS APPLIED NANO MATERIALS
	2020-08-28
卷号	3
关键词	dual-mode sensor fluorescence colorimetry visible detection arsenic
ISSN号	2574-0970
DOI	10.1021/acsanm.0c01647
通讯作者	Liu, Bianhua(bhliu@iim.ac.cn) ; Yang, Linlin(llyang@iim.ac.cn)
英文摘要	To eliminate the occurrence of false positives and improve the accuracy of measurement results in the process of environmental detection, a single-switch dual-mode nanosensing method should be developed for real-time and in situ detection. Herein, we constructed a colorimetric and fluorescent dual-mode optical nanosensor for accurate detection of As(III) in water. The nanosensor consisted of trithiocyanuric acid modified gold nanoparticles (TMT-Au NPs) and amino-functionalized carbon dots (NCDs). When TMT-Au NPs were injected into the NCDs solutions, the fluorescence of NCDs was weakened due to the overlap of the UV-vis absorption peak of TMT-Au NPs and emission peak of NCDs based on an internal filtering effect. With the addition of As(III), the coordination of As(III) with sulfhydryl groups of TMT-Au NPs occurred, causing the aggregation of TMT-Au NPs for colorimetric detection based on local surface plasmon resonance with a limit of detection (LOD) of 0.87 ppb. Meanwhile, the fluorescence of the NCDs was recovered during the aggregation process of TMT-Au NPs for fluorescence detection with an LOD as low as 0.66 ppb. The reported dual-mode optical nanosensor will be widely used in the field of environmental water detection.
资助项目	National Natural Science Foundation of China[21976183] ; National Natural Science Foundation of China[21876175] ; Key Research and Development Plan of Anhui Province[1804a07020103] ; Key Research and Development Plan of Anhui Province[202004d07020013] ; Natural Science Foundation of Anhui Province[2008085QB69]
WOS关键词	AG NANOPARTICLES ; PHOTOLUMINESCENCE ; SPECTROSCOPY ; ARSENIC(III) ; GENERATION ; MECHANISM ; MERCURY ; SENSOR ; SILK
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000566778600097
资助机构	National Natural Science Foundation of China ; Key Research and Development Plan of Anhui Province ; Natural Science Foundation of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/104027]
专题	中国科学院合肥物质科学研究院
通讯作者	Liu, Bianhua; Yang, Linlin
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Anhui, Peoples R China 4.Anhui Univ Hefei, Inst Phys Sci & Informat Technol, Hefei 230601, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Li, Jian,Yang, Liang,Ruan, Yue,et al. Dual-Mode Optical Nanosensor Based on Gold Nanoparticles and Carbon Dots for Visible Detection of As(III) in Water[J]. ACS APPLIED NANO MATERIALS,2020,3.
APA	Li, Jian.,Yang, Liang.,Ruan, Yue.,Chu, Suyun.,Wang, Haidian.,...&Zhang, Zhongping.(2020).Dual-Mode Optical Nanosensor Based on Gold Nanoparticles and Carbon Dots for Visible Detection of As(III) in Water.ACS APPLIED NANO MATERIALS,3.
MLA	Li, Jian,et al."Dual-Mode Optical Nanosensor Based on Gold Nanoparticles and Carbon Dots for Visible Detection of As(III) in Water".ACS APPLIED NANO MATERIALS 3(2020).