Issue 41, 2019

Hydrophilic encapsulation of reduced graphite oxide (r-GO) by admicellar polymerization for application in biosensors

Abstract

Herein, hydrophilic encapsulation of reduced graphite oxide (r-GO) was achieved by admicellar polymerization. Functional polymer thin films were coated on the r-GO surface for enhancing the water dispersion of r-GO. The morphology was observed by TEM and SEM. Moreover, a PHEMA thin film was coated on the surface of r-GO by admicellar polymerization using a surfactant at low concentration. The percentage of the film coated on r-GO was calculated to be 40 wt% by thermal analysis. FT-Raman has been applied to illustrate that admicellar polymerization is a nondestructive functionalization method. The water contact angles decreased from 105° to 63° after admicellar polymerization; this indicated the successful hydrophilic encapsulation of r-GO. Moreover, r-GO/PHEMA-modified glassy carbon (r-GO/PHEMA/GC) functioned well as an electrochemical biosensor for the detection of hemopexin-like domain of matrix metalloproteinase 14 (PEX-14).

Graphical abstract: Hydrophilic encapsulation of reduced graphite oxide (r-GO) by admicellar polymerization for application in biosensors

Article information

Article type
Paper
Submitted
22 Jul 2019
Accepted
19 Sep 2019
First published
20 Sep 2019

New J. Chem., 2019,43, 16314-16321

Hydrophilic encapsulation of reduced graphite oxide (r-GO) by admicellar polymerization for application in biosensors

F. Li, L. Wang, M. Li and L. Lei, New J. Chem., 2019, 43, 16314 DOI: 10.1039/C9NJ03793D

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