A three-dimensional hydrogel-modified indium tin oxide electrode with enhanced performance for in situ electrochemical detection of extracellular H2O2

Two different electrochemical sensors (Hemin-G4/Au/GCE and Hemin-G4/Au/ITO) were developed and applied to explore the electrocatalytic capacity of H2O2 reduction. Due to the excellent catalytic activity of Hemin-G4 and high conductivity of gold nanoparticles, both electrodes show excellent electroch...

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Veröffentlicht in:	Analyst (London) 2021-09, Vol.146 (17), p.5403-5412
Hauptverfasser:	Zhou, Shiying, Wang, Xianfeng, Jiang, Liuyi, Sun, Human, Huo, Danqun, Hou, Changjun
Format:	Artikel
Sprache:	eng
Schlagworte:	Biocompatibility Catalytic activity Cell adhesion Cell adhesion & migration Chemical sensors Electrochemical analysis Electrodes Hydrogels Hydrogen peroxide Indium tin oxides Nanoparticles Response time Selectivity
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Two different electrochemical sensors (Hemin-G4/Au/GCE and Hemin-G4/Au/ITO) were developed and applied to explore the electrocatalytic capacity of H2O2 reduction. Due to the excellent catalytic activity of Hemin-G4 and high conductivity of gold nanoparticles, both electrodes show excellent electrochemical performances towards H2O2 with a low LOD (0.67 μM for Hemin-G4/Au/GCE and 0.65 μM for Hemin-G4/Au/ITO), rapid response (
ISSN:	0003-2654 1364-5528
DOI:	10.1039/d1an00875g