title: Manipulating three-dimensional gel network entanglement by thin film shearing.
abstract: Vortex fluidic mediated shearing of supramolecular gels in thin films leads to complete disruption of fluorous bis-urea derived gels. Hydrocarbon analogues however, are only partially disrupted, which emphasizes the resistance of non-fluorous bis-urea gelators towards shear. The gel structures have been studied by combining the thin film shearing with small angle neutron scattering. This technique represents a novel approach to study the effects of external stimuli on self-assembled supramolecular gel networks.
authors.affiliation: James L. Winkle College of Pharmacy, University of Cincinnati, 3225 Eden Avenue, Cincinnati, OH 45221, USA. kumariha@ucmail.uc.edu.
authors.forename: Harshita
authors.initials: H
authors.lastname: Kumari
authors.affiliation: NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA.
authors.forename: Steven R
authors.initials: SR
authors.lastname: Kline
authors.affiliation: Department of Chemistry, Durham University, South Road, Durham DH1 3LE, UK. jon.steed@durham.ac.uk.
authors.forename: Stuart R
authors.initials: SR
authors.lastname: Kennedy
authors.affiliation: Bragg Institute, Australian Nuclear Science and Technology Organization, New Illawara Road, Lucas Heights, NSW, Australia.
authors.forename: Christopher
authors.initials: C
authors.lastname: Garvey
authors.affiliation: Flinders Centre for NanoScale Science & Technology, School of Chemical & Physical Sciences, Flinders University, Adelaide, SA 5001, Australia.
authors.forename: Colin L
authors.initials: CL
authors.lastname: Raston
authors.affiliation: Department of Chemistry, University of Missouri-Columbia, 601 S. College Avenue, Columbia, MO 65211, USA. atwoodj@missouri.edu.
authors.forename: Jerry L
authors.initials: JL
authors.lastname: Atwood
authors.affiliation: Department of Chemistry, Durham University, South Road, Durham DH1 3LE, UK. jon.steed@durham.ac.uk.
authors.forename: Jonathan W
authors.initials: JW
authors.lastname: Steed