This
workshop brought together a diverse group of scientists
and engineers from academic, industrial and government
laboratories to provide a forum to explore the state of
the art in self-assembly of ceramic-based and hybrid ceramic/organic
composites for the creation of multifunctional materials.
New developments in 3-D photonic crystals, chemical and
biological sensors, rapid fabrication techniques, active
membranes, 3-D holographic patterning, and modeling and
theory of 3-D optical devices were explored.
The
scientific and technical underpinnings of self-assembly
of ceramic and composite structures were emphasized.
The technical program consisted of invited presentations
from renowned experts and selected contributed presentations,
poster sessions, and hands-on tutorials given by expert
faculty.
TUTORIALS
The
hands-on tutorials comprised a unique and important
part of this workshop. There have been a number of recent
developments in the formation, properties and modeling
of 3-D ceramics and composites. In the tutorials, experts
in their respective fields gave a series of hands-on
tutorials on these developments, with the goal of assisting
the transition of these technologies to industry, national
laboratories, Department of Defense organizations, and other
universities. These tutorials took place in the laboratories
of the University of Illinois.
The
following six tutorials were offered:
1.
Opal synthesis, assembly and characterization
(Instructor:
P. V. Braun, Univ. of Illinois)
This
tutorial gave a short introduction to artificial
opals (colloidal crystals), covered the basics
in colloidal particle synthesis, and demonstrated
colloidal crystallization and characterization
of colloidal crystals. We presented the use
of microspot spectroscopy for the optical characterization
of photonic crystals, and covered how to interpret
the results. The basic principles of colloidal
systems and photonic crystals were covered.
Multiple hands-on demonstrations were planned.
2. Introduction to photonic crystals
(Instructor:
S. Fan, Stanford University)
This
tutorial covered photonic crystals, which
are artificial structures in which the index of
refraction of materials are strongly modulated
at a sub-wavelength scale. These structures allow
manipulation of light in ways that are not previously
conceivable. In this tutorial, we reviewed
some of the basic theoretical concepts related
to photonic crystals, as well as recent developments
in device applications.
3. 3-D holographic lithography
(Instructor:
P. Wiltzius, Univ. of Illinois)
This
tutorial gave a short introduction to the principles
of holographic lithography. The advantages and
disadvantages of commonly used light sources and
photoresist materials systems were discussed.
Then we reviewed the state-of-the-art of the
field and finish with an outlook for future research.
Hands-on demonstrations were planned.
4. Direct-Write Assembly of 3-D Structures
(Instructor: J.A. Lewis, Univ. of Illinois)
This
tutorial described the basic principles involved
in ink-based direct-write assembly approaches.
A broad overview of various techniques were
presented with an emphasis on continuous 3-D printing
methods such as robotic deposition. The design
of concentrated inks comprised of colloid, nanoparticle,
and polyelectrolyte building blocks was reviewed.
Specific topics of interest included ink rheology,
phase behavior, assembly, and drying. Examples
of potential applications were highlighted.
Direct-write assembly was demonstrated in our
laboratory.
5.
Self-assembly of porous and composite nanostructures
(Instructor:
C.J. Brinker, Univ. of New Mexico and Sandia National
Laboratory)
This
tutorial covered how self-assembly employs
molecules (often surfactants) that are pre-programmed
to organize into thermodynamically controlled nanostructures
according to a multitude of weak non covalent
interactions. When self-assembly is conducted with
added hydrophilic or hydrophobic precursors, it
provides an efficient means to direct the formation
of highly ordered (inorganic or organic) so-called
mesoporous materials composed of networks of uniformly
sized pores. Self-assembly conducted with both
hydrophilic inorganic precursors and hydrophobic
organic precursors provides a route to nanocomposite
materials. This tutorial addressed the synthesis,
structure, and properties of self-assembled porous
and composite nanostructures.
6. DNA-based assembly and sensing
(Instructor:
Y. Lu, Univ. of Illinois)
This
tutorial covered design, synthesis and characterization
of DNA, including catalytic DNA, in directed assembly
of nanomaterials, such as nanoparticles and nanotubes.
Recent advances in both biology and nanoscale science/technology
that allow programmable control of nanomaterials
assembly were emphasized. The practical application
in sensing a broad range of analytes was demonstrated
using hands-on examples.
|
TOPICS
Invited and contributed presentations and posters
covered a wide range of topics including:
- Controlling 2- and 3-dimensional placement, alignment,
orientation and configuration of meso and nanoscale
components
- Directed deposition and growth of multidimensional
mesostructures
- Bioinspired and bioassisted assembly (e.g., using
DNA, proteins, bioprocesses or living cells)
- Micro and Nanomanipulation and writing with particle/optical
beams, probes and pens
- Strategies for preserving and tuning properties
in ceramic assemblies
- Experimental, theoretical and computational studies
of multifunctional ceramics
- Photonic crystal device designs and simulations
- The impact of colloidal forces on colloidal crystallization
- Thermodynamics and kinetics of assembly processes
- Thermal and mechanical stability of the assembled
materials
- Effect of external stimuli (e.g., mechanical, optical,
electrical, gradients) in directing assembly
- Innovative, in situ characterization techniques
INVITED
SPEAKERS
| Confirmed
invited speakers include: |
Jennifer
Lewis
University of Illinois |
Yi
Lu
University of Illinois |
Joanna
Aizenberg
Lucent Technologies |
Brad
Chmelka
University of California
—Santa Barbara |
Alfons
van Blaaderen
Utrecht University |
Pierre
Wiltzius
University of Illinois |
Jim
Hutchison
University of Oregon |
Rajesh
Naik
Wright Patterson Air Force Base |
Paul
Braun
University of Illinois |
Jeff
Brinker
Sandia National Laboratory |
Doug
Chrisey
Naval Research Laboratory |
Gabe
Spalding
Illinois Wesleyan University |
Chris
Murray
IBM |
Daniel O'Brien
Army Research Laboratory |
Tom
Russell
University of Massachusetts |
Don
Cropek
U.S. Army Corps of Engineers |
Shanhui
Fan
Stanford University |
David
Pine
New York University1 |
Jennifer
Synowczynski
Civ, ARL/WMRD |
|
LOCATION
Beckman Institute on the campus of the University
of Illinois at Urbana-Champaign. (20 flights/day into the local
airport. Chicago, St. Louis and Indianapolis 2-3 hours.)
SYMPOSIUM
ORGANIZERS
Paul
V. Braun
University of Illinois at Urbana-Champaign
Department
of MS&E
1304
W. Green St.
Urbana,
IL 6180,
USA
Tel:
217-244-7293
pbraun@uiuc.edu
|
C.
Jeffrey Brinker
University of New Mexico and Sandia National Laboratory
1001
University Blvd. SE
Albuquerque
, NM 87106
USA
Tel:
505 272.7627
cjbrink@sandia.gov
|
Shanhui
Fan
Stanford University
Department
of Electrical Engineering
Ginzton
Laboratory
Stanford,
CA 94305
USA
Tel:
650-724-4759
shanhui@stanford.edu
|
Program
We
invite you to view the complete
program for this
workshop.
|
