BROWSE

Related Researcher

Author's Photo

Lee, Jiseok
Synthesis of Polymeric Optical Nano/Micro-architectures lab
Research Interests
  • Optofluidic photolithography
  • Nanoparticle Synthesis
  • Conjugated polymer design and Synthesis
  • Flow lithography
  • 3d printing

ITEM VIEW & DOWNLOAD

Colorimetric Detection of Warfare Gases by Polydiacetylenes Toward Equipment-Free Detection

DC Field Value Language
dc.contributor.author Lee, Jiseok ko
dc.contributor.author Seo, Sungbaek ko
dc.contributor.author Kim, Jinsang ko
dc.date.available 2014-12-24T00:17:06Z -
dc.date.created 2014-12-23 ko
dc.date.issued 2012-04 ko
dc.identifier.citation ADVANCED FUNCTIONAL MATERIALS, v.22, no.8, pp.1632 - 1638 ko
dc.identifier.issn 1616-301X ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/9595 -
dc.description.abstract Rationally designed polydiacetylene (PDA) molecules have been developed for rapid, selective, sensitive, and convenient colorimetric detection of organophosphate (OP) nerve agents, a mass destruction weapon. Oxime (OX) functionality was incorporated into diacetylene molecules to utilize its strong affinity toward organophosphates. The diacetylene molecules having an OX functional group (OX-PDA) were self-assembled to form PDA liposomes in an aqueous solution. Upon exposure to organophosphate nerve agent simulants, OX at the OX-PDA liposome surface interacts with nerve agent simulants, which results in intraliposomal repulsive stress due to steric repulsion between OP-occupied OX units at the liposome surface as well as interliposomal aggregation induced by increased hydrophobicity of the liposome surface via OP-OX complex formation. The resulting intra- and interliposomal stress causes disturbance of the conjugated backbone of OX-PDA, producing color change as a label-free and sensitive sensory signal. The effects of molecular structure on selectivity and sensitivity of OX-PDA liposome solution, OX-PDA liposome-embedded agarose gels, and OX-PDA liposome-coated cellulose acetate membranes were systematically investigated. The optimized OX-PDA liposome in the solid state showed selective and rapid optical transition upon exposure down to 160 ppb of diisopropylfluorophosphate (DFP), a nerve agent simulant. The results provide an insightful molecular design principle of PDA-based colorimetric sensor and suggest portable sensory patches for rapid, selective, sensitive, and convenient colorimetric detection of organophosphate nerve agents. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher WILEY-V C H VERLAG GMBH ko
dc.title Colorimetric Detection of Warfare Gases by Polydiacetylenes Toward Equipment-Free Detection ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84859837762 ko
dc.identifier.wosid 000302794400009 ko
dc.type.rims ART ko
dc.description.wostc 27 *
dc.date.tcdate 2015-05-06 *
dc.identifier.doi 10.1002/adfm.201102486 ko
Appears in Collections:
ECHE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show simple item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU