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Synthesis of ZnS urchin-like nanostructures for electrochemical determination of uric acid

  • Xi'an Jiaotong University
  • Texas A&M University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this work, Zinc sulphide (ZnS) urchin-like nanocrystals were synthesized via a simple hydrothermal method. By controlling the ratio of the reaction solvent ethylenediamine (EN) and water, we can get different nanostructures. The morphology and crystal properties of synthesized materials were characterized with FESEM and XRD. Optical properties were characterized by UV-visible spectrometer and fluorescence spectrometer. Due to large surface-area-to-volume ratio, ZnS urchin-like nanostructures were chosen to spin-coated on ITO glass and then immobilized with uricase enzyme to form a working electrode to determine the concentration of uric acid in aqueous solution by an enzyme-based electrochemical method. The results showed a high sensitivity of 9.55861e-6A·cm-2-mM-1. The detecting linear range is from 0.01 mM to 1mM with detecting limit of 1.16μM and correlation coefficient of R2=0.99967.

Original languageEnglish
Title of host publicationIEEE Sensors, SENSORS 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479982875
DOIs
StatePublished - 5 Jan 2016
Event15th IEEE Sensors Conference, SENSORS 2016 - Orlando, United States
Duration: 30 Oct 20162 Nov 2016

Publication series

NameProceedings of IEEE Sensors
Volume0
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference15th IEEE Sensors Conference, SENSORS 2016
Country/TerritoryUnited States
CityOrlando
Period30/10/162/11/16

Keywords

  • ZnS
  • biosensor
  • enzyme
  • urchin-like
  • uric acid

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