Literature DB >> 26066106

Chiral structures and defects of lyotropic chromonic liquid crystals induced by saddle-splay elasticity.

Zoey S Davidson1, Louis Kang1, Joonwoo Jeong2, Tim Still1, Peter J Collings1,3, Tom C Lubensky1, A G Yodh1.   

Abstract

An experimental and theoretical study of lyotropic chromonic liquid crystals (LCLCs) confined in cylinders with degenerate planar boundary conditions elucidates LCLC director configurations. When the Frank saddle-splay modulus is more than twice the twist modulus, the ground state adopts an inhomogeneous escaped-twisted configuration. Analysis of the configuration yields a large saddle-splay modulus, which violates Ericksen inequalities but not thermodynamic stability. Lastly, we observe point defects between opposite-handed domains, and we explain a preference for point defects over domain walls.

Year:  2015        PMID： 26066106     DOI： 10.1103/PhysRevE.91.050501

Source DB:  PubMed          Journal:  Phys Rev E Stat Nonlin Soft Matter Phys        ISSN： 1539-3755


  8 in total

1.  Using chiral tactoids as optical probes to study the aggregation behavior of chromonics.

Authors:  Karthik Nayani; Jinxin Fu; Rui Chang; Jung Ok Park; Mohan Srinivasarao
Journal:  Proc Natl Acad Sci U S A       Date:  2017-03-23       Impact factor: 11.205

2.  Extremely small twist elastic constants in lyotropic nematic liquid crystals.

Authors:  Clarissa F Dietrich; Peter J Collings; Thomas Sottmann; Per Rudquist; Frank Giesselmann
Journal:  Proc Natl Acad Sci U S A       Date:  2020-10-16       Impact factor: 11.205

3.  Structures and topological defects in pressure-driven lyotropic chromonic liquid crystals.

Authors:  Qing Zhang; Rui Zhang; Baoliang Ge; Zahid Yaqoob; Peter T C So; Irmgard Bischofberger
Journal:  Proc Natl Acad Sci U S A       Date:  2021-08-31       Impact factor: 11.205

4.  Dynamic and reversible shape response of red blood cells in synthetic liquid crystals.

Authors:  Karthik Nayani; Arthur A Evans; Saverio E Spagnolie; Nicholas L Abbott
Journal:  Proc Natl Acad Sci U S A       Date:  2020-10-02       Impact factor: 11.205

5.  Lassoing saddle splay and the geometrical control of topological defects.

Authors:  Lisa Tran; Maxim O Lavrentovich; Daniel A Beller; Ningwei Li; Kathleen J Stebe; Randall D Kamien
Journal:  Proc Natl Acad Sci U S A       Date:  2016-05-24       Impact factor: 11.205

6.  Layering transitions and metastable structures of cholesteric liquid crystals in cylindrical confinement.

Authors:  Jonghee Eun; Joseph Pollard; Sung-Jo Kim; Thomas Machon; Joonwoo Jeong
Journal:  Proc Natl Acad Sci U S A       Date:  2021-08-17       Impact factor: 11.205

7.  Programming emergent symmetries with saddle-splay elasticity.

Authors:  Yu Xia; Andrew A DeBenedictis; Dae Seok Kim; Shenglan Chen; Se-Um Kim; Douglas J Cleaver; Timothy J Atherton; Shu Yang
Journal:  Nat Commun       Date:  2019-11-08       Impact factor: 14.919

8.  Spontaneous emergence of chirality in achiral lyotropic chromonic liquid crystals confined to cylinders.

Authors:  Karthik Nayani; Rui Chang; Jinxin Fu; Perry W Ellis; Alberto Fernandez-Nieves; Jung Ok Park; Mohan Srinivasarao
Journal:  Nat Commun       Date:  2015-08-19       Impact factor: 14.919
  8 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.