Next Article in Journal
Robust Foot Clearance Estimation Based on the Integration of Foot-Mounted IMU Acceleration Data
Next Article in Special Issue
Effects of Operating Parameters on Measurements of Biochemical Oxygen Demand Using a Mediatorless Microbial Fuel Cell Biosensor
Previous Article in Journal
Integration of Directional Antennas in an RSS Fingerprinting-Based Indoor Localization System
Previous Article in Special Issue
NiCu Alloy Nanoparticle-Loaded Carbon Nanofibers for Phenolic Biosensor Applications
Article Menu

Export Article

Open AccessArticle
Sensors 2016, 16(1), 6; doi:10.3390/s16010006

Application of Carbon-Microsphere-Modified Electrodes for Electrochemistry of Hemoglobin and Electrocatalytic Sensing of Trichloroacetic Acid

Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
*
Author to whom correspondence should be addressed.
Academic Editors: Yu Lei, Ashutosh Tiwari and Hongyun Liu
Received: 29 October 2015 / Revised: 28 November 2015 / Accepted: 17 December 2015 / Published: 23 December 2015
(This article belongs to the Special Issue Microbial and Enzymatic Biosensors)
View Full-Text   |   Download PDF [2677 KB, uploaded 23 December 2015]   |  

Abstract

By using the hydrothermal method, carbon microspheres (CMS) were fabricated and used for electrode modification. The characteristics of CMS were investigated using various techniques. The biocompatible sensing platform was built by immobilizing hemoglobin (Hb) on the micrometer-sized CMS-modified electrode with a layer of chitosan membrane. On the cyclic voltammogram, a couple of quasi-reversible cathodic and anodic peaks appeared, showing that direct electrochemistry of Hb with the working electrode was achieved. The catalytic reduction peak currents of the bioelectrode to trichloroacetic acid was established in the linear range of 2.0~70.0 mmol·L−1 accompanied by a detection limit of 0.30 mmol·L−1 (3σ). The modified electrode displayed favorable sensitivity, good reproducibility and stability, which suggests that CMS is promising for fabricating third-generation bioelectrochemical sensors. View Full-Text
Keywords: hemoglobin; carbon microsphere; direct electrochemistry; trichloroacetic acid hemoglobin; carbon microsphere; direct electrochemistry; trichloroacetic acid
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wang, W.-C.; Yan, L.-J.; Shi, F.; Niu, X.-L.; Huang, G.-L.; Zheng, C.-J.; Sun, W. Application of Carbon-Microsphere-Modified Electrodes for Electrochemistry of Hemoglobin and Electrocatalytic Sensing of Trichloroacetic Acid. Sensors 2016, 16, 6.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top