Jump to main content
Jump to site search

Issue 21, 2011
Previous Article Next Article

Sensitive detection of esculetin based on a CdSe nanoparticles-decorated poly(diallyldimethylammonium chloride)-functionalized graphene nanocomposite film

Author affiliations

Abstract

An electrochemical sensor based on a CdSe nanoparticles (NPs)-decorated poly(diallyldimethylammonium chloride) (PDDA)-functionalized graphene (CdSe–PDDA-G) nanocomposite was fabricated for the sensitive detection of esculetin. The nanocomposite was characterized by X-ray diffraction (XRD), ultraviolet/visible spectra (UV-vis) and transmission electron microscopy (TEM). Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to investigate the electrochemical behaviors of esculetin on the CdSe–PDDA-G composite film-modified glassy carbon electrode (GCE). The experimental results indicated that the incorporation of CdSe NPs with PDDA-G greatly enhanced the electrochemical response of esculetin. This electrochemical sensor displayed satisfactory analytical performance for esculetin detection over a range from 1.0 × 10−8 to 5.0 × 10−5 mol L−1 with a detection limit of 4.0 × 10−9 mol L−1 (S/N = 3). Moreover, the sensor also exhibited good reproducibility and stability, and could be used for the detection of esculetin in real samples with satisfactory results.

Graphical abstract: Sensitive detection of esculetin based on a CdSe nanoparticles-decorated poly(diallyldimethylammonium chloride)-functionalized graphene nanocomposite film

Back to tab navigation

Article information


Submitted
14 Jul 2011
Accepted
02 Aug 2011
First published
07 Sep 2011

Analyst, 2011,136, 4447-4453
Article type
Paper

Sensitive detection of esculetin based on a CdSe nanoparticles-decorated poly(diallyldimethylammonium chloride)-functionalized graphene nanocomposite film

D. Lu, Y. Zhang, S. Lin, L. Wang and C. Wang, Analyst, 2011, 136, 4447
DOI: 10.1039/C1AN15594F

Social activity

Search articles by author

Spotlight

Advertisements