Ordered patterns of liquid crystal toroidal defects by microchannel confinement

Cited 99 time in webofscience Cited 88 time in scopus
  • Hit : 359
  • Download : 0
DC FieldValueLanguage
dc.contributor.authorChoi, Myung Chulko
dc.contributor.authorPfohl, Tko
dc.contributor.authorWen, ZYko
dc.contributor.authorLi, YLko
dc.contributor.authorKim, Mahn-Wonko
dc.contributor.authorIsraelachvili, JNko
dc.contributor.authorSafinya, CRko
dc.date.accessioned2013-03-04T17:19:41Z-
dc.date.available2013-03-04T17:19:41Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2004-12-
dc.identifier.citationPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, v.101, pp.17340 - 17344-
dc.identifier.issn0027-8424-
dc.identifier.urihttp://hdl.handle.net/10203/83432-
dc.description.abstractIn this article we present experimental results demonstrating an approach to controlling the size and spatial patterning of defect domains in a smectic liquid crystal (LC) by geometric confinement in surface-modified microchannels. By confining the LC 4'-octyl-4-cyanobiphenyl in mum-sized rectangular channels with controlled surface polarity, we were able to generate defect domains that are not only nearly uniform in size but also arranged in quasi-2D ordered patterns. Atomic force microscopy measurements revealed that the defects have a toroidal topology, which we argue is dictated by the boundary conditions imposed by the walls of the microchannel. We show that the defects can be considered to be colloidal objects, which interact with each other to form ordered patterns. This method opens the possibility for exploiting the unique optical and theological properties associated with LC defects to making new materials. For example, the control of the shape, size, and spatial arrangement of the defects at the mesoscale suggests applications in patterning, templating, and when extended to lyotropic LCs, a process leading to uniform-sized spherical particles for chemical encapsulation and delivery.-
dc.languageEnglish-
dc.publisherNATL ACAD SCIENCES-
dc.subjectTRANSITION-
dc.subjectCOMPLEXES-
dc.subjectMEMBRANES-
dc.subjectALIGNMENT-
dc.titleOrdered patterns of liquid crystal toroidal defects by microchannel confinement-
dc.typeArticle-
dc.identifier.wosid000225803400007-
dc.identifier.scopusid2-s2.0-10644263479-
dc.type.rimsART-
dc.citation.volume101-
dc.citation.beginningpage17340-
dc.citation.endingpage17344-
dc.citation.publicationnamePROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-
dc.identifier.doi10.1073/pnas.0407925101-
dc.contributor.localauthorChoi, Myung Chul-
dc.contributor.localauthorKim, Mahn-Won-
dc.contributor.nonIdAuthorPfohl, T-
dc.contributor.nonIdAuthorWen, ZY-
dc.contributor.nonIdAuthorLi, YL-
dc.contributor.nonIdAuthorIsraelachvili, JN-
dc.contributor.nonIdAuthorSafinya, CR-
dc.type.journalArticleArticle-
dc.subject.keywordPlusTRANSITION-
dc.subject.keywordPlusCOMPLEXES-
dc.subject.keywordPlusMEMBRANES-
dc.subject.keywordPlusALIGNMENT-
Appears in Collection
BiS-Journal Papers(저널논문)PH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 99 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0