PMID- 31357286
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20190731
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 204
DP  - 2019 Nov 1
TI  - Fabrication of a covalent organic framework and its gold nanoparticle hybrids as 
      stable mimetic peroxidase for sensitive and selective colorimetric detection of 
      mercury in water samples.
PG  - 224-228
LID - S0039-9140(19)30580-6 [pii]
LID - 10.1016/j.talanta.2019.05.086 [doi]
AB  - Gold nanoparticles (AuNPs) without surface capping agents are easily aggregated 
      owing to their high surface energy, leading to an unexpected decrease of their 
      catalytic activity. Herein, we report gold nanoparticles decorated covalent 
      organic framework (COF) as mimetic peroxidase for colorimetric detection of 
      mercury. 1,3,5-Tris-(4-formyl-phenyl)triazine (PT) and 4, 4'-azodianiline (Azo) 
      was employed as the monomers to prepare a novel imine based COF PTAzo under 
      solvothermal conditions. AuNPs are further decorated into the PTAzo to form 
      COF-AuNPs hybrid via a citrate reducing method. The COF-AuNPs show high 
      stability, and exhibits enhanced peroxidase mimetic activity in the presence of 
      Hg(2+). The Hg(2+) concentration dependent peroxidase mimetic activity of 
      COF-AuNPs enables the development of a sensitive and selective method for 
      detection of Hg(2+) in aqueous solution. The developed method gives good 
      linearity in the range of 5-300 nM with the limit of detection of 0.75 nM. The 
      results show that Hg(2+)-enhanced peroxidase mimetic activity of COF-AuNPs offers 
      great potential for the detection of Hg(2+) in real samples.
CI  - Copyright (c) 2019 Elsevier B.V. All rights reserved.
FAU - Li, Wei
AU  - Li W
AD  - College of Chemistry, Research Center for Analytical Sciences, Tianjin Key 
      Laboratory of Molecular Recognition and Biosensing, Nankai University, 94 Weijin 
      Road, Tianjin, 300071, China.
FAU - Li, Yang
AU  - Li Y
AD  - College of Chemistry, Research Center for Analytical Sciences, Tianjin Key 
      Laboratory of Molecular Recognition and Biosensing, Nankai University, 94 Weijin 
      Road, Tianjin, 300071, China.
FAU - Qian, Hai-Long
AU  - Qian HL
AD  - State Key Laboratory of Food Science and Technology (Jiangnan University), 
      International Joint Laboratory on Food Safety, Institute of Analytical Food 
      Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, 
      China.
FAU - Zhao, Xu
AU  - Zhao X
AD  - State Key Laboratory of Food Science and Technology (Jiangnan University), 
      International Joint Laboratory on Food Safety, Institute of Analytical Food 
      Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, 
      China.
FAU - Yang, Cheng-Xiong
AU  - Yang CX
AD  - College of Chemistry, Research Center for Analytical Sciences, Tianjin Key 
      Laboratory of Molecular Recognition and Biosensing, Nankai University, 94 Weijin 
      Road, Tianjin, 300071, China.
FAU - Yan, Xiu-Ping
AU  - Yan XP
AD  - State Key Laboratory of Food Science and Technology (Jiangnan University), 
      International Joint Laboratory on Food Safety, Institute of Analytical Food 
      Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, 
      China. Electronic address: xpyan@jiangnan.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20190524
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
SB  - IM
OTO - NOTNLM
OT  - AuNPs
OT  - Colorimetric detection
OT  - Covalent organic frameworks
OT  - Hg(2+)
OT  - Mimetic peroxidase
EDAT- 2019/07/31 06:00
MHDA- 2019/07/31 06:01
CRDT- 2019/07/31 06:00
PHST- 2019/04/01 00:00 [received]
PHST- 2019/05/10 00:00 [revised]
PHST- 2019/05/20 00:00 [accepted]
PHST- 2019/07/31 06:00 [entrez]
PHST- 2019/07/31 06:00 [pubmed]
PHST- 2019/07/31 06:01 [medline]
AID - S0039-9140(19)30580-6 [pii]
AID - 10.1016/j.talanta.2019.05.086 [doi]
PST - ppublish
SO  - Talanta. 2019 Nov 1;204:224-228. doi: 10.1016/j.talanta.2019.05.086. Epub 2019 
      May 24.