Post on 04-Jun-2018
Nano Materials
Philip G. CollinsDept. of Physics and Astronomy
Nano Science
Nano Technology
Nanomaterials are not New
Prof. A. Belcher, MIT
Our Ability to “See” at the Nanoscale
AFM
SEM TEM
STM
NSOM
EFM
Nanospheres as Lubricants & Coatings
Nanofibers for Fabrics & Composites
Nanowires for Electronic Circuits
Early Nanotechnologies of Today
• composites• coatings• lubricants• fabrics• enhanced plastics
Early Nanotechnologies of Today
• composites• coatings• lubricants• fabrics• enhanced plastics
Advanced Nanotechnologies of the Future• motors• robots
• communicators• control systems
Science Fiction to Science Facts
1999
2010
What Do You Build with the World’s Smallest Wires?
Circuits of Single Molecules?
V
Single Molecule Circuits
Watching Protein Binding
Single Molecule Circuits
T4 Lysozyme (enzyme)
Peptidoglycan(substrate)
Watching Enzyme Activity
Single Molecule Circuits
Understanding Mutations and Inhibitors
S90C K83A
K83A/R119A
R119A
K83E/R119A K83A/R119E
T26E/S90C S36C E11H/Nterm Posi tive charge
Negative charge
Neutral charge
Tethered site
Cata lytic site
Nano Materials
Philip G. CollinsDept. of Physics and Astronomy
Nano Science
Nano Technology