Nanopillar arrays with superior mechanical strength and optimal spacing for high sensitivity biosensors

Venkataramani Anandan, Yeswanth L. Rao, Guigen Zhang

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

6 Scopus citations

Abstract

The fabrication of metallic nanopillar structures and their application as electrodes in electrochemical processes are discussed in this report. Structures of arrays of vertically standing nanopillars were fabricated by electrodeposition technique with the use of porous anodic alumina as masking templates. To explore the possibility of using these nanostructures for biosensing applications, they were evaluated mechanically and electrochemically. Mechanically, these standing nanopillars should have sufficient strength to sustain the capillary forces caused by the nanopillar-liquid interactions. Electrochemically, these standing nanopillars should provide increased sensitivity in an electrochemical process. Our results showed that the nanopillars were mechanically stable during the electrochemical process and the electrodes with nanopillars exhibited increased electrochemical response as compared with flat electrodes.

Original languageEnglish
Title of host publication2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings
EditorsM. Laudon, B. Romanowicz
Pages217-220
Number of pages4
StatePublished - 2005
Event2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 - Anaheim, CA, United States
Duration: May 8 2005May 12 2005

Publication series

Name2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings

Conference

Conference2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005
Country/TerritoryUnited States
CityAnaheim, CA
Period5/8/055/12/05

Keywords

  • Biosensors
  • Electrochemical sensitivity
  • Electrodes
  • Mechanical strength
  • Nanopillars
  • Porous anodic alumina

ASJC Scopus subject areas

  • Engineering (all)

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