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SUMMARY:Functional Nanoparticles:  A Pathway to Low Viscosity Nanofluids\,
  High Graft Density Polymers and Other Fun Things - Prof. David Andrew Lew
 is\, PhD\, FRACI (Flinders centre for NanoScale Science and Technology\, F
 linders University) 
DTSTART:20181023T133000Z
DTEND:20181023T143000Z
UID:TALK113659@talks.cam.ac.uk
CONTACT:Lingtao Kong
DESCRIPTION:It is appreciated that the properties of solutions and surface
 s is dependent on the way the surface interacts with the surroundings and 
 the resultant “structure” of the liquid and inter-particle interaction
 s which control properties such as dispersibility.  However\, typically\, 
 there is very little control and even rarer characterisation of the densit
 y of the modification that has been achieved\, limiting understanding of f
 undamental mechanisms of interaction.  Recently\, we have developed approa
 ches to routinely achieve controlled\, high density attachment to surfaces
  of up to 5 attachments nm-2\, approaching the theoretical maximum packing
  density.  \n\nThis presentation will discuss how we have been able to use
  this approach as a robust platform to systematically vary the chemistry o
 f the surface including the tethering of cofactors for enzymatic reactions
 \, polymers and the attachment of other particles to make raspberry partic
 les.   This in turn has enabled the creation of new structures including p
 hotonic crystals and superhydrophobic surfaces based on multiple levels of
  roughness and it has also enabled some understanding of the rheological /
  solution properties of very high solids loaded “fluids”.
LOCATION:Pfizer Lecture Theatre
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