BEGIN:VCALENDAR
PRODID:-//Columba Systems Ltd//NONSGML CPNG/SpringViewer/ICal Output/3.3-
 M3//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20170905T122256Z
DTSTART:20171213T140000Z
DTEND:20171213T150000Z
SUMMARY:School of Materials Seminar entitled "Colloidal processing of gra
 phene oxide: Pickering emulsions\, capsules and magnetic adventures"
UID:{http://www.columbasystems.com/customers/uom/gpp/eventid/}mtc-j760qmf
 x-t5575u
DESCRIPTION:It is now widely accepted that graphene oxide and related 2-d
 imensional nanomaterials can stabilise emulsions and foams at a fraction
  of the material cost when compared to the conventional 3D (usually sphe
 rical) \nparticles employed for Pickering/Ramsden emulsification (1). Em
 ulsions stabilised by graphene oxide show remarkable stability\, and can
  be tuned by changes in solution conditions\, making them interesting ca
 ndidates \nfor a range of applications.Such emulsions are exquisitely se
 nsitive to the parameters used during their formulation\, which affect t
 he interactions between graphene oxide and the oil–water interface: pH\,
  salt\, oil type\, \nand the presence of other additives. Their stabilit
 y to dilution is particularly appealing when compared to molecularly sta
 bilised emulsions.\n\nIn most cases\, emulsification of oil in water wit
 h graphene oxide gives simple oil-in-water emulsions (1). However\, for 
 certain oils\, carefully engineered solution conditions result in single
 -step production of multiple \nemulsions (2)\, leading readily to multi-
 compartment capsules through polymerisation of the outer droplet interfa
 ce. Controlling the outer ‘skin’ of these capsules allows for controlled
  release of active agents contained \nwithin\, with potential applicatio
 ns in agriculture and water treatment.\n\nThe same colloid chemistry – u
 nderstanding stability and interactions\, can be used to exert subtle co
 ntrol over graphene oxide using light-switchable surfactants (3) or non-
 covalently bound magnetic particles (4) \nor magnetic molecules (5). Thi
 s enhances opportunities for using this material to capture toxins or va
 luable materials from water at low concentrations\, and provides new rou
 tes for remediation and refining. \n\n(1) J Phys. Chem. C 118 (2014) 452
 9-4535.\n\n(2) ACS Appl. Mater. Interfaces 9 (2017) 18187–18198.\n\n(3) 
 Nanoscale 8 (2016) 6969–6974. \n\n(4) ACS Appl. Mater. Interfaces 7 (201
 5) 2124–2133.\n\n(5) J. Colloid Interface Sci. 464 (2016) 285–290.\n\n\n
 Rico Tabor is an ARC Future Fellow and Senior Lecturer at Monash Univers
 ity. He leads the Soft Materials and Colloids Laboratory within the Scho
 ol of Chemistry. He completed his undergraduate degree at the University
  of Bristol\, UK\, \nand went on to undertake a PhD in the surfactant la
 b of Prof. Julian Eastoe\, graduating in 2009. The topic of his PhD was 
 investigating the kinetics and aggregation of surfactants in non-aqueous
  solvents\, with particular focus on \nnanoparticle stabilisation. Late 
 in 2009\, Rico emigrated to Australia to take up a post-doctoral positio
 n at the University of Melbourne\, exploring interactions in soft colloi
 dal systems using atomic force microscopy. \n\nIn 2012\, Rico took up a 
 lectureship in the School of Chemistry at Monash University. His group’s
  research is focused on several key areas of soft materials and colloida
 l systems:\n\nApplications of small-angle neutron scattering\, light sca
 ttering and atomic force microscopy in studies of soft and self-assemble
 d systems.\n\nNovel surfactants and their properties\, including pH and 
 photo-responsive molecules\;\n\nCarbon nanomaterials (especially graphen
 e oxide) with particular focus on colloidal and interfacial properties.\
 n\nRico has published 75 papers across a range of topics in surface and 
 colloid science\, and works extensively with industry on applications of
  colloidal systems to practical problems. \n\n\n
STATUS:TENTATIVE
TRANSP:TRANSPARENT
CLASS:PUBLIC
LOCATION:D12\, MSS Tower\, Manchester
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