A DIGITAL MICROFLUIDIC-BASED ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY FOR CELL-BASED IMMUNOASSY IN A DYNAMIC MODE

Yuqian Zhang, Yuguang Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work, we report a novel system that integrates an electrochemical impedance spectroscopy (EIS)-based biosensor and a digital microfluidic (DMF) device. This system can quantify human peripheral blood mononuclear cells (PBMCs) in low-volume samples with minimal human intervention. By exploiting the unique droplet handling ability of DMF devices, we conducted a cell-based assay in a dynamic mode by agitating the sample droplet during the incubation, and detected as low as 104 PBMCs/mL, enhancing sensitivity by 2.4-fold.

Original languageEnglish (US)
Title of host publicationMicroTAS 2022 - 26th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PublisherChemical and Biological Microsystems Society
Pages130-131
Number of pages2
ISBN (Electronic)9781733419048
StatePublished - 2022
Event26th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2022 - Hybrid, Hangzhou, China
Duration: Oct 23 2022Oct 27 2022

Publication series

NameMicroTAS 2022 - 26th International Conference on Miniaturized Systems for Chemistry and Life Sciences

Conference

Conference26th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2022
Country/TerritoryChina
CityHybrid, Hangzhou
Period10/23/2210/27/22

Keywords

  • cell-based immunoassay
  • digital microfluidics
  • non-faradic electrochemical impedance spectroscopy (EIS)

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Bioengineering
  • General Chemistry
  • Control and Systems Engineering

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