eprintid: 3845
rev_number: 7
eprint_status: archive
userid: 270
dir: disk0/00/00/38/45
datestamp: 2019-12-19 03:20:07
lastmod: 2019-12-19 03:20:07
status_changed: 2019-12-19 03:20:07
type: conference_item
metadata_visibility: show
creators_name: Vu, Quoc Tuan
creators_name: Bui, Thanh Tung
creators_name: Chu, Duc Trinh
creators_id: vqtuan0211@gmail.com
creators_id: tungbt@vnu.edu.vn
creators_id: trinhcd@vnu.edu.vn
title: A study on electrical parameters of interdigitated array electrodes (IDEAS) sensor for concentration measurement of phosphate-buffered saline
ispublished: pub
subjects: ElectronicsandComputerEngineering
divisions: cetr_uet
divisions: fac_fet
abstract: Capacitive sensors based on interdigitated array electrodes (IDAEs) integrated into microfluidic channels have been developed for many bioanalysis applications due to its advantages in comparison with electrochemical sensors. In this study, an IDEAs capacitive sensor has been proposed, fabricated and
characterized. The IDEA structure is fabricated in a 100 μm-width microfluidic channel using
micromachining technology. Electrical impedance spectroscopy measurements of the sensor have been carried out in a wide frequency range from 10 kHz to 1 MHz. Performance of the IDEAs sensor has been demostrated through sensing the concentration of the phosphate buffer saline (PBS) which is fully filled
in the microchannel. The obtained results show a linear relationship between the measured conductance and concentration of PBS solution, demonstrating the possibility of estimating conductance of the solution through the total impedance.
date: 2019-11
date_type: published
full_text_status: none
pres_type: lecture
event_title: The 7th International Workshop on Nanotechnology and Application (IWNA 2019)
event_location: Phan Thiet
event_dates: 05-09 Nov. 2019
event_type: workshop
refereed: TRUE
citation:   Vu, Quoc Tuan and Bui, Thanh Tung and Chu, Duc Trinh  (2019) A study on electrical parameters of interdigitated array electrodes (IDEAS) sensor for concentration measurement of phosphate-buffered saline.  In: The 7th International Workshop on Nanotechnology and Application (IWNA 2019), 05-09 Nov. 2019, Phan Thiet.