Fundamental Sciences Electronics Energy Pharmaceutical Bio Nano Science & Technology Physics...
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Transcript of Fundamental Sciences Electronics Energy Pharmaceutical Bio Nano Science & Technology Physics...
Fundamental Sciences
Electronics
Energy
PharmaceuticalBio
NanoScience &
Technology
PhysicsChemistry
Biology
m]
MACRO
~10o m
~10-9 m
~10-6 m
nm]
MICRO
NANO
Industries
Energy:
Fuel Cell
Electronics-Information:
Storage
Bio-MedicalDrug Delivery(nano-particles)
Motivation
Industries Selected Areas:• Energy Fuel Cells, Solar Cells,
Lubrication • Electronics Storage, Transistor
(Gates)• Pharmaceutical Drug Delivery• Bio-Medical Implants
NanoScience & NanoTechnologyNanoScience & NanoTechnology
Motivation: Nanocellular Growth
Unstructured surface -> growth randomly
Structured surface -> directed growth
Tendon Cell Growth
Growth Inhibited on Nanopatterned Surfaces
NanoScience & NanoTechnologyNanoScience & NanoTechnology
Nanoarray in fused silica
Nano- patterned -> growth inhibited
C.D.W. Wilkonson et al., Mat. Sci. and Eng. C, 19 (2002) 263
Motivation: Carbon Nano-Foam
NanoScience & NanoTechnologyNanoScience & NanoTechnology
The creation of a molecular structure involves “atom-to-atom” “assembly” under appropriate physical conditions and rate.
Laser ablation is one possible avenue to create man-made materials. E.g., from graphite:
Fullerenes and Carbon Nanotubes
Amorphous Carbon (Films)
Carbon Nano-Foams
Granular low density nanofoam: TEM image shows the free-standing fractal structure of the carbon foam. The foam consist of a network of interconnected carbon clusters of ~ 6nm in size
A.V. Rode et al., Appl. Phys. A 70, (2000) 135