Highly catalysis MOF Ce supported Ag nanoclusters coupled with specific aptamer for SERS quantitative assay of trace dopamine

A cerium metal organic framework-loaded silver nanocluster (MOF ) is synthesized by a facile stirring procedure with trimesic acid, cerium nitrate, silver nitrate and NaBH , which exhibites strong catalytic activity in the indicated reaction of HAuCl -sodium lactate (SL). MOF can sensitively detect...

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Published inTalanta (Oxford) Vol. 245; p. 123468
Main Authors Shi, Jinling, Li, Jingjing, Liang, Aihui, Jiang, Zhiliang
Format Journal Article
LanguageEnglish
Published Netherlands 01.08.2022
Subjects
SERS quantitative Analysis
Apt
Nanocatalysis
MOF-Loaded silver nanoclusters
Dopamin
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Abstract A cerium metal organic framework-loaded silver nanocluster (MOF ) is synthesized by a facile stirring procedure with trimesic acid, cerium nitrate, silver nitrate and NaBH , which exhibites strong catalytic activity in the indicated reaction of HAuCl -sodium lactate (SL). MOF can sensitively detect dopamine (DA) by surface-enhanced Raman scattering (SERS) and resonance Rayleigh scattering (RRS) techniques with a detection concentration range of 0.01-0.25 nmol/L and a detection limit of 0.008 nmol/L. Based on the specific binding of aptamer (Apt)-DA and the catalytic amplification strategy of MOF on HAuCl -SL, a sensitive and convenient DA platform for dual-mode detection of SERS and RRS is constructed. In addition, the platform is successfully applied to detect DA in human serum with satisfactory recoveries (95.7-102%).
AbstractList A cerium metal organic framework-loaded silver nanocluster (MOF ) is synthesized by a facile stirring procedure with trimesic acid, cerium nitrate, silver nitrate and NaBH , which exhibites strong catalytic activity in the indicated reaction of HAuCl -sodium lactate (SL). MOF can sensitively detect dopamine (DA) by surface-enhanced Raman scattering (SERS) and resonance Rayleigh scattering (RRS) techniques with a detection concentration range of 0.01-0.25 nmol/L and a detection limit of 0.008 nmol/L. Based on the specific binding of aptamer (Apt)-DA and the catalytic amplification strategy of MOF on HAuCl -SL, a sensitive and convenient DA platform for dual-mode detection of SERS and RRS is constructed. In addition, the platform is successfully applied to detect DA in human serum with satisfactory recoveries (95.7-102%).
Author Jiang, Zhiliang
Liang, Aihui
Shi, Jinling
Li, Jingjing
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  organization: Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, 541004, China. Electronic address: ahliang2008@163.com
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  organization: Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, 541004, China. Electronic address: zljiang@mailbox.gxnu.edu.cn
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Keywords SERS quantitative Analysis
Apt
Nanocatalysis
MOF-Loaded silver nanoclusters
Dopamin
Language English
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