Next Article in Journal
PERFORM: A System for Monitoring, Assessment and Management of Patients with Parkinson’s Disease
Previous Article in Journal
Online Variational Bayesian Filtering-Based Mobile Target Tracking in Wireless Sensor Networks
Previous Article in Special Issue
Advanced Nanoporous Materials for Micro-Gravimetric Sensing to Trace-Level Bio/Chemical Molecules
Article Menu

Export Article

Open AccessArticle
Sensors 2014, 14(11), 21316-21328; doi:10.3390/s141121316

The Influence of Nanopore Dimensions on the Electrochemical Properties of Nanopore Arrays Studied by Impedance Spectroscopy

School of Chemical and Physical Sciences, Flinders University, Bedford Park, Adelaide, SA 5042, Australia
School of Chemical Engineering, the University of Adelaide, Adelaide, SA 5005, Australia
Ian Wark Research Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia
Author to whom correspondence should be addressed.
Received: 22 July 2014 / Revised: 24 October 2014 / Accepted: 5 November 2014 / Published: 11 November 2014
(This article belongs to the Special Issue Nanopore Sensors: Fabrications, Properties and Applications)
View Full-Text   |   Download PDF [1735 KB, uploaded 11 November 2014]   |  


The understanding of the electrochemical properties of nanopores is the key factor for better understanding their performance and applications for nanopore-based sensing devices. In this study, the influence of pore dimensions of nanoporous alumina (NPA) membranes prepared by an anodization process and their electrochemical properties as a sensing platform using impedance spectroscopy was explored. NPA with four different pore diameters (25 nm, 45 nm and 65 nm) and lengths (5 μm to 20 μm) was used and their electrochemical properties were explored using different concentration of electrolyte solution (NaCl) ranging from 1 to 100 μM. Our results show that the impedance and resistance of nanopores are influenced by the concentration and ion species of electrolytes, while the capacitance is independent of them. It was found that nanopore diameters also have a significant influence on impedance due to changes in the thickness of the double layer inside the pores. View Full-Text
Keywords: anodization; porous alumina; Electrochemical Impedance Spectroscopy (EIS); nanopore arrays anodization; porous alumina; Electrochemical Impedance Spectroscopy (EIS); nanopore arrays

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

Kant, K.; Priest, C.; Shapter, J.G.; Losic, D. The Influence of Nanopore Dimensions on the Electrochemical Properties of Nanopore Arrays Studied by Impedance Spectroscopy. Sensors 2014, 14, 21316-21328.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



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