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SUMMARY:The Golden Road: Synthesis and Surface Chemistry of Gold Nanocryst
 als - Professor Catherine J. Murphy (University of Illinois at Urbana-Cham
 paign)
DTSTART:20200115T140000Z
DTEND:20200115T150000Z
UID:TALK135469@talks.cam.ac.uk
CONTACT:Lingtao Kong
DESCRIPTION:That “finely-divided metals” have unusual optical properti
 es has been known since ancient times.  Gold\, for instance\, can appear r
 ed\, green\, blue or brown on the nanoscale.  In this talk I will describe
  synthetic methods to create colloidal gold nanocrystals of tunable size\,
  shape\, and therefore tunable optical properties.  The structure-directin
 g agents in the synthesis are thought to bind to different crystal facets 
 of the growing nanocrystals and therefore dictate nanocrystal shape:  new\
 , improved imaging methods are beginning to allow us to see if this is tru
 e.  The surface is where the nanocrystals meet and greet the rest of the w
 orld\; strategies to coat them isotropically and anisotropically with hard
  and soft shells will be discussed.
LOCATION:Wolfson Lecture Theatre
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