Facile preparation of gold nanoparticles-decorated poly(o-phenylenediamine) hollow microspheres and their application for the detection of dopamine. (October 2016)

• Record Type: Journal Article
• Authors: Li, Wei; Li, Dahong; Xiao, He; He, Beihai
• Is Part Of: High performance polymers. Volume 28:Number 8(2016)
• Page Start: 993
• Page End: 1002
• Publication Date: 2016-10
• Subjects: Au nanoparticle -- conducting polymer -- poly(o-phenylenediamine) -- hollow microspheres -- dopamine; Polymerization -- Periodicals; Polymers -- Periodicals; 547.7
• DOI: 10.1177/0954008315612141
• Languages: English
• ISSNs: 0954-0083

Abstract

Gold (Au) nanoparticles-decorated poly( o -phenylenediamine) (PoPD@Au) hollow microspheres were successfully synthesized by a simple two-step process without any other templates or additives. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and ultraviolet–visible absorption spectra were performed to characterize the resulting samples. The results confirmed that the obtained PoPD@Au microspheres had a perfect hollow structure and revealed that there is an interaction between PoPD hollow microspheres and Au nanoparticles. Plausible explanation for the formation of PoPD@Au hollow microspheres has been elaborated. Furthermore, PoPD@Au hollow microspheres were immobilized onto the surface of a glassy carbon electrode and applied to construct a sensor. Cyclic voltammogram experiments indicated that the proposed sensor method had good sensitivity, stability, and repeatability.