PMID- 32559693
OWN - NLM
STAT- MEDLINE
DCOM- 20200812
LR  - 20200812
IS  - 1090-2414 (Electronic)
IS  - 0147-6513 (Linking)
VI  - 201
DP  - 2020 Sep 15
TI  - Hybrid carbon nanotubes modified glassy carbon electrode for selective, sensitive 
      and simultaneous detection of dopamine and uric acid.
PG  - 110872
LID - S0147-6513(20)30711-9 [pii]
LID - 10.1016/j.ecoenv.2020.110872 [doi]
AB  - Based on a hybrid carbon nanotube composite, a novel electrochemical sensor with 
      high sensitivity and selectivity was designed for the simultaneous determination 
      of dopamine (DA) and uric acid (UA). The hybrid carbon nanotube composite was 
      prepared by ultrasonic assembly of carboxylated multi-walled carbon nanotube 
      (MWCNT-COOH) and hydroxylated single-walled carbon nanotube (SWCNT-OH). And the 
      hybrid (MWCNT-COOH/SWCNT-OH) composite was characterized by field emission 
      scanning electron microscopy (FE-SEM) and Fourier transform infrared (FT-IR) 
      spectroscopy. The electrochemical performances of MWCNT-COOH/SWCNT-OH composite 
      modified glassy carbon electrode (MWCNT-COOH/SWCNT-OH/GCE) were analyzed by 
      cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and 
      differential pulse voltammetry (DPV). Under the optimum experimental conditions, 
      the as-prepared sensor showed high sensitivity and selectivity for DA and UA. The 
      calibration curves obtained were linear for the currents versus DA and UA 
      concentrations in the range 2-150 muM, and limits of detection (LODs) were 
      calculated to be 0.37 muM and 0.61 muM (signal-to-noise ratio of 3, S/N = 3), 
      respectively. The recoveries of DA and UA in bovine serum samples at 
      MWCNT-COOH/SWCNT-OH/GCE were in the range 96.18-105.02%, and relative standard 
      deviations (RSDs) were 3.34-7.27%. The proposed electrochemical sensor showed 
      good anti-interference ability, excellent reproducibility and stability, as well 
      as high selectivity, which might provide a promising platform for determination 
      of DA and UA.
CI  - Copyright (c) 2020 Elsevier Inc. All rights reserved.
FAU - Guan, Jin-Feng
AU  - Guan JF
AD  - College of Chemistry and Chemical Engineering, Central South University, 
      Changsha, Hunan, 410083, China.
FAU - Zou, Jiao
AU  - Zou J
AD  - College of Chemistry and Chemical Engineering, Central South University, 
      Changsha, Hunan, 410083, China.
FAU - Liu, Yi-Ping
AU  - Liu YP
AD  - College of Chemistry and Chemical Engineering, Central South University, 
      Changsha, Hunan, 410083, China.
FAU - Jiang, Xin-Yu
AU  - Jiang XY
AD  - College of Chemistry and Chemical Engineering, Central South University, 
      Changsha, Hunan, 410083, China.
FAU - Yu, Jin-Gang
AU  - Yu JG
AD  - College of Chemistry and Chemical Engineering, Central South University, 
      Changsha, Hunan, 410083, China. Electronic address: yujg@csu.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20200616
PL  - Netherlands
TA  - Ecotoxicol Environ Saf
JT  - Ecotoxicology and environmental safety
JID - 7805381
RN  - 0 (Nanotubes, Carbon)
RN  - 268B43MJ25 (Uric Acid)
RN  - 7440-44-0 (Carbon)
RN  - VTD58H1Z2X (Dopamine)
SB  - IM
MH  - Animals
MH  - Carbon
MH  - Cattle
MH  - Dopamine/*analysis/blood
MH  - Electrochemical Techniques/*methods
MH  - Electrodes
MH  - Limit of Detection
MH  - Nanotubes, Carbon/*chemistry/ultrastructure
MH  - Reproducibility of Results
MH  - Uric Acid/*analysis/blood
OTO - NOTNLM
OT  - Differential pulse voltammetry
OT  - Dopamine
OT  - Electrochemical sensor
OT  - Multi-walled carbon nanotubes
OT  - Single-walled carbon nanotubes
OT  - Uric acid
COIS- Declaration of competing interest The authors declare no conflict of interest.
EDAT- 2020/06/20 06:00
MHDA- 2020/08/13 06:00
CRDT- 2020/06/20 06:00
PHST- 2020/01/21 00:00 [received]
PHST- 2020/04/04 00:00 [revised]
PHST- 2020/06/07 00:00 [accepted]
PHST- 2020/06/20 06:00 [pubmed]
PHST- 2020/08/13 06:00 [medline]
PHST- 2020/06/20 06:00 [entrez]
AID - S0147-6513(20)30711-9 [pii]
AID - 10.1016/j.ecoenv.2020.110872 [doi]
PST - ppublish
SO  - Ecotoxicol Environ Saf. 2020 Sep 15;201:110872. doi: 
      10.1016/j.ecoenv.2020.110872. Epub 2020 Jun 16.