The Waterloo Institute for Nanotechnology (WIN) and the Department of Chemistry is pleased to present a Distinguished Lecture by Ian Manners, a distinguished professor in the Department Chemistry at the University of Victoria.
Functional Nano and Micron-Scale Materials via Seeded Self-Assembly Driven by Crystallization
Tuesday,
April
19,
2022
3:00
-
4:00
p.m.
This
will
be
an
in-person
seminar
held
in
QNC
1501.
Register
now!
Abstract: The ability to prepare materials in the 10 nm – 100 micron size regime with controlled shape, dimensions, tailored functionality, and structural hierarchy is still in its relative infancy and currently remains the virtually exclusive domain of biology. In this talk recent developments concerning a promising “seeded growth” route to well-defined 1D, 2D, and more complex hierarchical materials on these length-scales termed “living” crystallization-driven self-assembly (CDSA), will be described. Living CDSA can be regarded as a type of “living supramolecular polymerization” that is analogous to well-known “living” covalent (e.g. anion initiated) polymerizations of molecular monomers, but on a much longer length scale (typically, 20 nm – 5 microns). Living CDSA also shows analogies to biological “nucleation-elongation” processes such as amyloid fiber growth.
The building blocks or “monomers” used for living CDSA consist of a rapidly expanding range of crystallizable amphiphiles such as block copolymers, homopolymers with charged termini, or planar p-stacking molecules with a wide variety of chemistries. The seeds used as “initiators” for living CDSA are usually prepared from preformed polydisperse 1D or 2D assemblies by sonication.
This talk will focus on the creation of functional architectures via living CDSA with emphasis on applications in catalysis, optoelectronics, nanomedicine, and surface modification. Successful scale-up will be discussed.
Ian
Manners
is
Canadian
and
British.
After
receiving
his
B.Sc.
and
Ph.D.
in
the
UK
he
conducted
postdoctoral
work
in
Germany
and
then
in
the
USA.
He
joined
the
University
of
Toronto,
Canada
as
an
Assistant
Professor
in
1990
and
was
promoted
to
Full
Professor
in
1995
and
was
made
a
Canada
Research
Chair
in
2001.
In
2006
he
returned
to
the
UK
to
take
up
an
EU
Marie
Curie
Chair
at
Bristol
and
in
2018
he
became
a
Canada
150
Research
Chair
at
the
University
of
Victoria,
Canada.
He
also
holds
a
visiting
professorship
at
Shanghai
Jiao
Tong
University,
China.
He
is
an
elected
member
of
the
Canadian
and
the
British
National
Academies
of
Science
and
the
European
Academy
of
Science.
If desired, more info is available at: https://web.uvic.ca/~imanners/ian/about.html