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Chiral nematic liquid crystal droplets as a basis for sensor systems.
- Source :
-
Molecular systems design & engineering [Mol Syst Des Eng] 2022 Mar 07; Vol. 7 (6), pp. 607-621. Date of Electronic Publication: 2022 Mar 07 (Print Publication: 2022). - Publication Year :
- 2022
-
Abstract
- For a series of phospholipid coated calamitic nematic liquid crystal droplets (5CB, 6CB, 7CB, E7 and MLC7023) of diameter ∼18 μm, the addition of chiral dopant leaves the sign of surface anchoring unchanged. Herein we report that for these chiral nematic droplets an analyte induced transition from a Frank-Pryce structure (with planar anchoring) to a nested-cup structure (with perpendicular anchoring) is accompanied by changes in the intensity of reflected light. We propose this system as both a general scheme for understanding director fields in chiral nematic liquid crystal droplets with perpendicular anchoring and as an ideal candidate to be utilised as the basis for developing cheap, single use LC-based sensor devices.<br />Competing Interests: There are no conflicts to declare.<br /> (This journal is © The Royal Society of Chemistry.)
Details
- Language :
- English
- ISSN :
- 2058-9689
- Volume :
- 7
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Molecular systems design & engineering
- Publication Type :
- Academic Journal
- Accession number :
- 36876150
- Full Text :
- https://doi.org/10.1039/d1me00189b