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