Cell suspension concentration monitoring by using a miniaturized serial high frequency SAWR sensor.

Abstract:

:In this paper, a miniaturized cell suspension concentration monitoring method was investigated. The sensing unit was a carbon screen-printed electrode (CSPE) in serial with a 433MHz vacuum-packaged surface acoustic wave resonator (SAWR). SAWR provided a stable and high operating frequency, which helps to keep the stability and sensitivity of the monitoring system. Living cells suspensions in different concentrations were prepared and dropcast on CSPE. Frequency responses of the sensor were recorded. Cell quantity variation within the same culture media volume changed the dielectric properties of CSPE and finally affected the SAWR frequency. SAWR frequency declined with the decrease of cell concentration. The proposed sensor provided high sensitivity and remarkable stability for the cell suspensions.

journal_name

Bioengineered

journal_title

Bioengineered

authors

Li J,Feng H,Fang Y

doi

10.1080/21655979.2015.1119342

subject

Has Abstract

pub_date

2015-01-01 00:00:00

pages

351-6

issue

6

eissn

2165-5979

issn

2165-5987

journal_volume

6

pub_type

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