报告时间:6月5日(周二)9:00
报告地点:科技创新大楼C501室
报告人:Paul Clegg
Interfacial particles for creating functional materials
Abstract:Nanoparticles and larger colloids can become trapped at liquid
interfaces provided they have appropriate surface chemistry. The particles
modify the elastic properties, permeability and interactions of the interfaces.
As a consequence they are important building blocks for designing delivery
technologies and for creating functional materials. For example, this approach
has been used to create unique tricontinuous media, growing droplets and capsules
which can be switchable or can give burst release. In this talk, I will explain
why the particles become trapped and I will show that the novel properties are
a consequence of the mesoscale size of the particles.
Biography:Paul Clegg received his BSc degree in Physics
from the University of Liverpool (1994) and his PhD from the University of
Oxford (2000). Following this he held postdoctoral positions at MIT and the
University of Toronto. He then moved to the University of Edinburgh where he is
currently a Reader.
Over the past dozen years, Paul has developed
a new research strand within the Edinburgh Soft Matter group dedicated to
emulsions, liquid interfaces and bijels. With these systems it has been
essential to be attentive to preparation routes, an issue which strikes a chord
with many who apply soft matter industrially. Consequently, he currently
works on the application of soft materials in various areas including food and
drink, agrochemicals and energy technologies. He serves on the Institute of
Physics, Liquids and Complex Fluids committee.