Amplified colorimetric detection of Ag+ based on Ag+-triggered peroxidase-like catalytic activity of ZIF-8/GO nanosheets

doi:10.1016/j.snb.2018.12.137

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Amplified colorimetric detection of Ag+ based on Ag+-triggered peroxidase-like catalytic activity of ZIF-8/GO nanosheets
	Li, Chao-rui 2,3,4; Hai, Jun 2,3,4; Fan, Long 1,2,3,4; Li, Si-liang 5; Wang, Bao-dui 2,3,4; Yang, Zheng-yin 2,3,4
刊名	SENSORS AND ACTUATORS B-CHEMICAL
	2019-04
卷号	284 页码:213-219
关键词	Noble metal free nanozyme Nanosheet Peroxidase-like catalytic activity Colorimetric Silver ion
ISSN号	0925-4005
DOI	10.1016/j.snb.2018.12.137
英文摘要	Recently, noble metal nanozymes have been frequently utilized for the construction of a number of colorimetric probes for monitoring heavy metal ions. However, the high cost of noble metal nanozymes seriously confines their extensive use of such colorimetric methods. Here, an effective noble metal free zeolitic imidazolate frameworks-8/graphene oxide (denoted as ZIF-8/GO) probe has been constructed for colorimetric detection of Ag+ with high selectivity and sensitivity in water and human serum samples. The proposed method is based on the Ag+-triggered peroxidase-like catalytic activity of ZIF-8/GO for oxidizing 3,3',5,5'-tetramethylbenzidine (TMB) in the existence of H2O2, accompanying an absorption intensity of oxTMB centered at 652 nm and a color change from colorless to blue. The detection limit of this system to Ag+ is 1.43 nM, which is significantly lower than the threshold levels (0.93 mu M) for drinking water and other noble metal nanozymes based colorimetric methods. Furthermore, such detection platform shows high selectivity against other metal ions and could be used for detection of Ag+ from environmental water and human serum samples. Because of its low cost, convenient operation, and excellent sensitivity and selectivity, the ZIF-8/GO probe could fulfill all industry requirements for point-of-use monitoring of Ag+ in environmental and biological samples, and fill market vacancy.
资助项目	Young Foundation of Jinchang[jrc201811]
WOS研究方向	Chemistry ; Electrochemistry ; Instruments & Instrumentation
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000460404100028
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32011]
专题	石油化工学院
通讯作者	Wang, Bao-dui; Yang, Zheng-yin
作者单位	1.Qual & Tech Supervis & Inspect Jin Chang, Jin Chang 737100, Peoples R China 2.Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China 3.Lanzhou Univ, Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Gansu, Peoples R China 4.Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R China 5.Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Chao-rui,Hai, Jun,Fan, Long,et al. Amplified colorimetric detection of Ag+ based on Ag+-triggered peroxidase-like catalytic activity of ZIF-8/GO nanosheets[J]. SENSORS AND ACTUATORS B-CHEMICAL,2019,284:213-219.
APA	Li, Chao-rui,Hai, Jun,Fan, Long,Li, Si-liang,Wang, Bao-dui,&Yang, Zheng-yin.(2019).Amplified colorimetric detection of Ag+ based on Ag+-triggered peroxidase-like catalytic activity of ZIF-8/GO nanosheets.SENSORS AND ACTUATORS B-CHEMICAL,284,213-219.
MLA	Li, Chao-rui,et al."Amplified colorimetric detection of Ag+ based on Ag+-triggered peroxidase-like catalytic activity of ZIF-8/GO nanosheets".SENSORS AND ACTUATORS B-CHEMICAL 284(2019):213-219.