Simple detection of binding events using an anchoring transition of liquid crystals on the immobilized oligoDNAs

Hak Rin Kim, Min Geon Choi, Joo Eun Kim, Eui Yul Choi, Sang Wook Oh, Jae Hoon Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We propose a novel method for optically detecting hybridization results in a deoxyribonucleic acid (DNA) chip using an anchoring transition of a nematic liquid crystal (NLC). Since the LC anchoring condition highly depends on variation of the surface morphology, DNA hybridization result induces an anchoring transition of NLCs from a homeotropic orientation to a random planar orientation. It is demonstrated that such hybridization results and the subsequent anchoring transition of LCs are detectable with simple optical instruments by utilizing large optical birefringence variation and propagation of the long-range orientational order in NLCs.

Original languageEnglish
Title of host publicationNanostructured Materials and Hybrid Composites for Gas Sensors and Biomedical Applications
PublisherMaterials Research Society
Pages47-51
Number of pages5
ISBN (Print)9781558998711
DOIs
StatePublished - 2006
Event2006 Materials Research Society Spring Meeting - San Francisco, CA, United States
Duration: 18 Apr 200620 Apr 2006

Publication series

NameMaterials Research Society Symposium Proceedings
Volume915
ISSN (Print)0272-9172

Conference

Conference2006 Materials Research Society Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA
Period18/04/0620/04/06

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