A paper-based electrochemical sensor using inkjet-printed carbon nanotube electrodes

Document Type

Article

Publication Date

1-1-2015

Abstract

This paper presents a fully inkjet-printed electrochemical sensor on paper which consists of carbon nanotube-printed working, reference, and counter electrodes. The proposed technique aims at low-cost and disposable paper-based electrochemical sensors. First, a carbon nanotube (CNT) ink was inkjet-printed directly on paper, forming a conductive network. Additionally, a hydrophobic barrier was patterned on paper to limit the absorption of liquid to the designed area. The inkjet printing method allows for rapid patterning of electrodes on paper, resulting in a simple and effective electrochemical sensor. The sheet resistance of the CNT-printed paper was as low as 1 kΩ/□ after 33 prints. A potential step voltammetry method was applied to determine the concentration of the analytes, iron ion (Fe2+) and dopamine (DA), with linear ranges of 10 μM-200 μM and 10 μM-100 μM, respectively. The reported approach for a fully inkjet-printed electrochemical sensor is easy and cheap, and it has a potential for simple and rapid paper-based point-of-care diagnostics.

Publication Source (Journal or Book title)

ECS Journal of Solid State Science and Technology

First Page

S3044

Last Page

S3047

This document is currently not available here.

Plum Print visual indicator of research metrics
PlumX Metrics
  • Citations
    • Citation Indexes: 100
  • Usage
    • Abstract Views: 7
  • Captures
    • Readers: 182
  • Social Media
    • Shares, Likes & Comments: 66
see details

Share

COinS