Browse

Electrochemical nanoneedle biosensor based on multiwall carbon nanotube

Cited 86 time in Web of Science Cited 95 time in Scopus
Authors
Boo, Hankil; Jeong, Ran-A; Park, Sejin; Kim, Keun Soo; An, Kay Hyeok; Lee, Young Hee; Han, Ji Hyung; Kim, Hee Chan; Chung, Taek Dong
Issue Date
2006-01-18
Publisher
American Chemical Society
Citation
Anal Chem. 2006 Jan 15;78(2):617-20.
Keywords
Biosensing Techniques/instrumentation/*methodsDopamine/*analysisGlutamic Acid/*analysisMicroscopy, Electron, ScanningNanotubes, Carbon/*chemistryPotentiometry
Abstract
We report the fabrication and analytical functions of a biosensor based on a nanoneedle consisting of a multiwall carbon nanotube attached to the end of an etched tungsten tip. The devised electrode is the smallest needle-type biosensor reported to date. The nanoneedles prepared in this work are 30 nm in diameter and 2-3 microm in length. Dopamine and glutamate, which are physiologically important neurotransmitters, were successfully detected using these nanoneedles. Bare nanoneedles detected dopamine in the range from 100 to 1000 microM by differential pulse voltammetry, and enzyme-modified nanoneedles were able to respond to glutamate in the 100-500 microM range by potentiostatic amperometry.
ISSN
0003-2700 (Print)
Language
English
URI
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16408948

http://hdl.handle.net/10371/11588
DOI
https://doi.org/10.1021/ac0508595
Files in This Item:
There are no files associated with this item.
Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Biomedical Engineering (의공학전공)Journal Papers (저널논문_의공학전공)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse