A Novel Biomimetic Hydrogen Peroxide Biosensor Based on Pt Flowers‐decorated Fe3O4/Graphene Nanocomposite

Electroanalysis - Tập 29 Số 6 - Trang 1518-1523 - 2017
Xueling Zhao1, Zhanhong Li1, Cheng Chen1, Yihua Wu1, Zhigang Zhu1, Hongli Zhao2, Minbo Lan2
1School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai, 201209 P. R. China
2Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Shanghai 200237 (P.R. China),

Tóm tắt

AbstractA sensitive and selective amperometric H2O2 biosensor was obtained by utilizing the electrodeposition of Pt flowers on iron oxide‐reduced graphene oxide (Fe3O4/rGO) nanocomposite modified glassy carbon electrode (GCE). The morphology of Fe3O4/rGO and Pt/Fe3O4/rGO was characterized by transmission electron microscopy (TEM) and scanning electron microscopy (SEM), respectively. The step‐wise modification and the electrochemical characteristics of the resulting biosensor were characterized by cyclic voltammetry (CV) and chronoamperometry methods. Thanks to the fast electron transfer at the Pt/Fe3O4/rGO electrode interface, the developed biosensor exhibits a fast and linear amperometric response upon H2O2. The linear range of Pt/Fe3O4/rGO is 0.1∼2.4 mM (R2=0.998), with a sensitivity of 6.875 μA/mM and a detection limit of 1.58 μM (S/N=3). In addition, the prepared biosensor also provides good anti‐interferent ability and long‐term stability due to the favorable biocompatibility of the electrode interface. The proposed sensor will become a reliable and effective tool for monitoring and sensing the H2O2 in complicate environment.

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Tài liệu tham khảo

10.1039/C1AN15738H

10.1021/ac1031447

10.1016/j.talanta.2010.04.054

10.1016/j.jpba.2015.01.018

10.1021/ac2026817

10.1021/ac202878q

10.1016/j.bios.2011.03.018

10.1007/s00604-013-1068-6

10.1016/j.snb.2012.12.112

10.1016/S0956-5663(99)00073-1

10.1007/s11051-014-2250-4

10.1016/j.aca.2013.04.021

10.1039/C4NR03482A

10.1016/j.aca.2012.05.049

10.1021/ar200044b

10.1038/nnano.2007.260

10.1021/ac702203f

10.1021/nl302358e

10.1016/j.bios.2014.08.085

10.1002/elan.200503335

10.1016/j.jallcom.2016.07.101

10.1007/s00604-011-0600-9

10.1016/j.ijhydene.2016.05.099

10.1021/cr500023c

10.1166/sam.2015.2025

10.3390/s120505996

10.1039/c3ra45596c

10.1016/j.bios.2013.03.070

10.1021/nn100852h

10.1007/s00604-012-0904-4

10.1039/c2nr11992g

10.1021/nn1006368

10.1021/cm801356a

10.1039/C3TA13688D

10.1002/chem.201302193

10.1016/j.ultsonch.2012.12.001

10.1016/j.bios.2012.07.061

10.1049/mnl.2013.0612

Xie A. J., 2015, Mater. Technol. Advanced Perform. Mater., 30, 50

10.1016/j.snb.2014.10.038

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Electroanalysis

Tập 29 Số 6

1518-1523

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