NANOFIBERS FOR APPLICATIONS IN MEMS, NANOTECHNOLOGY, BIOTECHNOLOGY AND MEDICINE.

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Presentation transcript:

NANOFIBERS FOR APPLICATIONS IN MEMS, NANOTECHNOLOGY, BIOTECHNOLOGY AND MEDICINE

High tensile strength stronger than steel (on weight basis ) High extensibility comparable to rubber (elasticity)

NANOFIBERS (Definition) NANOFIBERS

Electrospinning of Polymers Volt

Electrospinning of nanofibers 30,000 Volt

SEM image of electrospun PET fibers. Fiber diameters are in the range of  10 micron

Electron micrograph of 300 nm polybenzimidazole nanofibers

Woven polyester shirt fabric

Nanofibers have large surface area per gram

Research Goals: *Investigation of Nanofibers Mechanical Properties *Advanced process control – “writing with fiber”

Potential Uses of nanofibers

Protective Clothing

Solar Sail Comet

Solar sail freight arriving on Mars

Leaf with nanofibers containing pesticide

Nanofibers as a physical barrier to insects

Bridge with nanofibers (Dupont)

Fiber Optic - nanofibers

Braid of aligned nanofibers. Density  100nfs/  m 2 Several aligned nanofibers

Nanofiber after burnout Super conductive nanofibers (Poly- acrylic acid + Salts)

Conductive nanofibers (PEDOT/PEO) Current-Voltage Response

Nanofiber nonwoven fabric Soft-tissue biomedical applications

A microelectrode records the firing of individual cells in a monkey's visual cortex