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author:

Zhang, Huifang (Zhang, Huifang.) [1] | Zhang, Yuhang (Zhang, Yuhang.) [2] | Hu, Xuan (Hu, Xuan.) [3] | Xu, Xiang (Xu, Xiang.) [4] | Yang, Yanmin (Yang, Yanmin.) [5] | Ma, Xiaoming (Ma, Xiaoming.) [6] | Li, Yuexiang (Li, Yuexiang.) [7] | Lin, Zhenyu (Lin, Zhenyu.) [8] (Scholars:林振宇)

Indexed by:

EI Scopus SCIE

Abstract:

Developing nanozyme-based free radical scavenging is a promising signal modulation approach for ECL sensing. Nevertheless, the relatively low antioxidant activity and inherent pro-oxidant activity of numerous nanozymes have significantly hindered the development of this strategy. Here a biofunctional copper-based metal-organic framework (CuMOF) with multiple enzyme-mimicking activities was employed for the modulation of the ECL immunosensor, guided by the self-cascade antioxidant reaction. The inherent SOD, CAT, and the capacity to eliminate OH endow CuMOF with powerful synergistic antioxidant effects while little pro-oxidant activities were displayed, enabling efficient scavenging of the O-2(-) produced during the electrochemical oxidation of H2O2. Subsequently, the nanoconfinement effect of the layered double hydroxide was introduced to ensure a steady ECL signal. The suggested ECL immunosensor, using aflatoxin B-1 as a proof-of-concept target, demonstrated a detection range spanning from 0.001 pg/mL to 10 ng/mL, with the detection limit calculated to be 0.18 fg/mL. This exceptional achievement greatly broadens the range of possible uses for nanozyme-based radical scavenging modulated ECL analysis.

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Community:

  • [ 1 ] [Zhang, Huifang]Nanchang Univ, Coll Chem & Chem Engn, Key Lab Jiangxi Prov Environm & Energy Catalysis, Nanchang 330031, Peoples R China
  • [ 2 ] [Li, Yuexiang]Nanchang Univ, Coll Chem & Chem Engn, Key Lab Jiangxi Prov Environm & Energy Catalysis, Nanchang 330031, Peoples R China
  • [ 3 ] [Zhang, Huifang]Gannan Normal Univ, Jiangxi Prov Key Lab Synthet Pharmaceut Chem, Ganzhou 341000, Peoples R China
  • [ 4 ] [Zhang, Yuhang]Gannan Normal Univ, Jiangxi Prov Key Lab Synthet Pharmaceut Chem, Ganzhou 341000, Peoples R China
  • [ 5 ] [Hu, Xuan]Gannan Normal Univ, Jiangxi Prov Key Lab Synthet Pharmaceut Chem, Ganzhou 341000, Peoples R China
  • [ 6 ] [Xu, Xiang]Gannan Normal Univ, Jiangxi Prov Key Lab Synthet Pharmaceut Chem, Ganzhou 341000, Peoples R China
  • [ 7 ] [Yang, Yanmin]Gannan Normal Univ, Jiangxi Prov Key Lab Synthet Pharmaceut Chem, Ganzhou 341000, Peoples R China
  • [ 8 ] [Ma, Xiaoming]Gannan Normal Univ, Jiangxi Prov Key Lab Synthet Pharmaceut Chem, Ganzhou 341000, Peoples R China
  • [ 9 ] [Lin, Zhenyu]Fuzhou Univ, MOE Key Lab Analyt Sci Food Safety & Biol, Fujian Prov Key Lab Anal & Detect Technol Food Saf, Coll Chem, Fuzhou 350116, Peoples R China

Reprint 's Address:

  • [Li, Yuexiang]Nanchang Univ, Coll Chem & Chem Engn, Key Lab Jiangxi Prov Environm & Energy Catalysis, Nanchang 330031, Peoples R China;;[Ma, Xiaoming]Gannan Normal Univ, Jiangxi Prov Key Lab Synthet Pharmaceut Chem, Ganzhou 341000, Peoples R China;;[Lin, Zhenyu]Fuzhou Univ, MOE Key Lab Analyt Sci Food Safety & Biol, Fujian Prov Key Lab Anal & Detect Technol Food Saf, Coll Chem, Fuzhou 350116, Peoples R China;;

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Source :

ANALYTICAL CHEMISTRY

ISSN: 0003-2700

Year: 2024

Issue: 40

Volume: 96

Page: 16072-16079

6 . 8 0 0

JCR@2023

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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