0

2000

4000

6000

8000

10000

0 500 1000 1500 2000 2500

1/cm

Inte

nsity

The NSF Nanoscale Science and Engineering Center for High-rate Nanomanufacturing (CHN)

Ahmed Busnaina, Joey Mead, Glen Miller, Carol Barry, Nick McGruer and Jacqueline Isaacs

Nanotemplates

From Low to High Risk

Charged Organic Molecule Neutral Organic Molecule

Substrate

AFM

tip

Molecular

Coating

+

-

Tip Moving

Direction

E

Field Assisted Nanopatterning

Directed Assembly : Electrophoresis

& Chemical FunctionalizationNanowire Templates

Nanotrench Templates

Template-free Directed Assembly: Dielectrophoretic

Assembled Polymer

No Alignment

Assembled Nanoparticles

SWNT Assembly

40 µm40 µm

Macromolecular rapid

communications 27, 1826 (2006).

Appl. Phys. Lett. 89, 193108 (2006).

Assembly of 10nm particles

Assembly of polymer blends

Appl. Phys. Lett. 90, 243108 (2007).

Assembly of SWNT in 500nm

trenches

Assembly of SWNT in 80nm

trenches

Small 3, 2006 (2007).

200nm

Assembly of 50 nm particles

Appl. Phys. Lett. 90,

083105 (2007)

Appl. Phys. Lett. 91,

063101 (2007)

Assembly of 10nm Particle

Assembly of one SWNT

Testbeds & Applications Roadmap

Education &

Outreach

Transfer

J. Macromol. Rap. Comm. 27, 1826 (2006).

Polymers wires

Responsible NanoManufacturing

• Surface Area

• Metals/Impurities

• Surface Charge

• Morphology

• Crystallinity

• Solubility in

biological fluids

• Etc….

Nanomaterial Properties

Variations in SWNT $/g for Alternative Levels of Industrial Hygiene Practice

SWNT Cost/gm

SWNT Exposure

Nanoelements and Functionalization

Self-Assembly of Functionalized Fullerenes;Spacing provided by alkenthiolsand COOH Groups

Hydrogenated debundled SWNTs

Functionalized Fullerenes

D-band before

D-band after Hydrogenation

NormalizedG-bands

Ferric Reducing Ability of Serum (FRAS) Toxicity Screening

NanotemplatesDirected Assembly of Nanoelements

Transfer Reuse of Template