Nanocomposite hydrogels-Controlled synthesis of chiral polyaniline nanofibers and their inclusion in agarose

TY - JOUR

T1 - Nanocomposite hydrogels-Controlled synthesis of chiral polyaniline nanofibers and their inclusion in agarose

AU - Zhang, Xuetong

AU - Chechik, Victor

AU - Smith, David K.

AU - Walton, Paul H.

AU - Duhme-Klair, Anne-Kathrin

AU - Luo, Yunjun

PY - 2009/10

Y1 - 2009/10

N2 - Chiral polyaniline nanofibers were synthesized by using two different oxidants potassium tetrachloroaurate (PTC) and ammonium persulfate (APS) in sequence to oxidize aniline in the presence of a chiral inducing agent (1S)-(+)-10-camphorsulfonic acid ((S)-(+)-CSA) or (R)-(-)-CSA. The optical activity of the chiral polyaniline varies as a function of the mass ratio of PTC to APS, with the highest optical activity being observed in the ratio range from 1.0 to 2.5. The resulting chiral polyaniline nanofibers were then included into agarose hydrogels via 'wet process' and the chiroptical properties of the polyaniline nanofibers are retained within the composite hydrogels, although the degree of chiral organization of the polyaniline appears to be somewhat modified by the presence of the agarose matrix. Crown Copyright (c) 2009 Published by Elsevier B.V. All rights reserved.

AB - Chiral polyaniline nanofibers were synthesized by using two different oxidants potassium tetrachloroaurate (PTC) and ammonium persulfate (APS) in sequence to oxidize aniline in the presence of a chiral inducing agent (1S)-(+)-10-camphorsulfonic acid ((S)-(+)-CSA) or (R)-(-)-CSA. The optical activity of the chiral polyaniline varies as a function of the mass ratio of PTC to APS, with the highest optical activity being observed in the ratio range from 1.0 to 2.5. The resulting chiral polyaniline nanofibers were then included into agarose hydrogels via 'wet process' and the chiroptical properties of the polyaniline nanofibers are retained within the composite hydrogels, although the degree of chiral organization of the polyaniline appears to be somewhat modified by the presence of the agarose matrix. Crown Copyright (c) 2009 Published by Elsevier B.V. All rights reserved.

KW - Chirality

KW - Hydrogel

KW - Nanocomposite

KW - Conducting polymers

KW - CIRCULARLY-POLARIZED ELECTROLUMINESCENCE

KW - FLEXIBLE ELECTRONICS

KW - METAL NANOPARTICLES

KW - HIGHLY FLUORESCENT

KW - QUANTUM DOTS

KW - TETRACHLOROAURATE

KW - ELECTROCHEMISTRY

KW - ENCAPSULATION

KW - NANOTUBES

KW - TEMPLATE

UR - http://www.scopus.com/inward/record.url?scp=70349533006&partnerID=8YFLogxK

U2 - 10.1016/j.synthmet.2009.08.002

DO - 10.1016/j.synthmet.2009.08.002

M3 - Article

SN - 0379-6779

VL - 159

SP - 2135

EP - 2140

JO - SYNTHETIC METALS

JF - SYNTHETIC METALS

IS - 19-20

ER -