2. A Technical Seminar on Nanotechnology Presented By: Syed Murtuza Hussain (06K31A1036)
3. What is Nanotechnology ? An engineered DNA strand pRNA tiny motor Semiconducting metal junction formed by two carbon nanotubes
4. Nanotechnology is the creation of functional materials, devices and systems, through the understanding and control of matter at dimensions in the nanometer scale length (1-100 nm), where new functionalities and properties of matter are observed and harnessed for a broad range of applications
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6. 1.27 × 107 m 0.22 m 0.7 × 10-9 m Fullerenes C 60 12,756 Km 22 cm 0.7 nm 10 millions times smaller 1 billion times smaller What is Nanoscale ?
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13. Exposure of human and the environment to nanomaterials at different stages of product life cycle – US environmental protection agency, 2007 (epc.gov)
14. Nanoscale Processes and Fabrication Top-down Approaches Bottom-up Approaches Optical and x-ray lithography Layer-by-layer self assembly E-beam and ion-beam lithography Molecular self assembly Scanning probe lithography Direct assembly Atomic force microscopic lithography Coating and growth Material removal and deposition (Chemical, mechanical, or ultrasonic) Colloidal aggregation Printing and imprinting
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17. Integrated Nanosystems Definition: Systems which may consist of integrated micro-, meso-, and/or macro-scale parts, and have their core components realized by nano-scale materials, processes, and devices.
