Bovine serum albumin detection and quantitation based on capacitance measurements of liquid crystals

Chi Hao Lin, Mon Juan Lee, Wei Lee

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Liquid crystal (LC)-based biosensing is generally limited by the lack of accurate quantitative strategies. This study exploits the unique electric capacitance properties of LCs to establish quantitative assay methods for bovine serum albumin (BSA) biomolecules. By measuring the voltage-dependent electric capacitance of LCs under an alternating-current field with increasing amplitude, positive correlations were derived between the BSA concentration and the electric capacitance parameters of LCs. This study demonstrates that quantitative analysis can be achieved in LC-based biosensing through electric capacitance measurements extensively employed in LCD research and development.

Original languageEnglish
Article number093703
JournalApplied Physics Letters
Volume109
Issue number9
DOIs
StatePublished - 29 Aug 2016

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