Issue 24, 2011
From the journal:

Lab on a Chip

Doping of a dielectric layer as a new alternative for increasing sensitivity of the contactless conductivity detection in microchips†

Renato Sousa Lima,ab   Thiago Pinotti Segato,ab   Angelo Luiz Gobbi,c   Wendell Karlos Tomazelli Coltrobd  and  Emanuel Carrilho*ab  

* Corresponding authors

a Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos, Brazil
E-mail: emanuel@iqsc.usp.br
Fax: +55 (16) 3373 9975
Tel: +55 16 3373 9441

b Instituto Nacional de Ciência e Tecnologia de Bioanalítica, Campinas, Brazil

c Laboratório Nacional de Nanotecnologia, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brazil

d Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, Brazil

Abstract

This communication describes a new procedure to increase the sensitivity of C4D in PDMS/glass microchips. The method consists in doping the insulating layer (PDMS) over the electrodes with nanoparticles of TiO2, increasing thus its dielectric constant. The experimental protocol is simple, inexpensive, and fast.

Graphical abstract: Doping of a dielectric layer as a new alternative for increasing sensitivity of the contactless conductivity detection in microchips

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C1LC20757A
Article type
Communication
Submitted
12 Aug 2011
Accepted
11 Oct 2011
First published
01 Nov 2011

Lab Chip, 2011,11, 4148-4151

Permissions

Request permissions

Doping of a dielectric layer as a new alternative for increasing sensitivity of the contactless conductivity detection in microchips

R. S. Lima, T. P. Segato, A. L. Gobbi, W. K. Tomazelli Coltro and E. Carrilho, Lab Chip, 2011, 11, 4148 DOI: 10.1039/C1LC20757A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements