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Introduction to Nanotechnology - IIMT Group of Colleges

Find details on Diploma Admission in UP 2020-21 After 10th, Polytechnic Engineering and Technology in Diploma Courses.The iimt group of colleges is offers eight specialized courses through its six departments in various areas of politechnic. These courses enable the students to face ...<br>

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Introduction to Nanotechnology - IIMT Group of Colleges

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  1. Introduction to Nanotechnology Presented by Dr Ravindra Kumar IIMT College of Polytechnic, Greater Noida Department of Applied Sciences

  2. Contents • What are Nanomaterials? • Nanomaterials dimension • Why small is good ? • Surface area-to-volume ratio • Properties of Nanomaterials • Applications of Nanomaterials

  3. What are nanomaterials ? • Nanomaterial is a material having at least one of its dimension in the range of 1-100 nm. • Nano derived from a Greek word Nanos meaning dwarf or small. • Norio Tanguchi- 1974 coined the term nanotechnology. • A nanometer is billionth of a meter i.e. 10-9. • Nanotechnology is the study of manipulating matter on atomic scale.

  4. Nano- Simple Examples The population of India is one billion or 100 crores One rupee in 100 crore

  5. Nanomaterials are divided into three category One dimension: It has only one parameter either length or height. Example- very thin surface coating

  6. two dimension • In two-dimensional nanomaterials (2D), two dimensions are outside the nanoscale. • This class exhibits plate-like shapes and includes graphene, nanofilms, nanolayers, and nanocoatings. • Examples- Nanotubes, Nanowires and Nano fibers nm nm

  7. three dimension • It has all parameters of length, breadth and height. • Examples- Nanoparticles, nano rings nm nm nm

  8. why small is good • Because as size decreases, surface area increases. • Nano-objects are: • Lighter • Faster • Cheaper • More energy efficient • Different properties at very small scale • Easy to transport

  9. 1 mm 1 mm 2 mm

  10. Properties of Nanomaterials The properties of a material in nanoparticle form are usually very different from those of the bulk material. • Large area/volume ratio • Interfacial layer • Solvent affinity • Diffusion across the surface • Ferromagnetic and ferroelectric effects • Melting point depression • Regular packing

  11. Applications • Nano fabrics • Medicine and drugs • Nano paints • Energy • Bio engineering • Defence and security • Cosmetics • Nano devices • Optical Engineering

  12. Thank You!!! IIMT Group of Colleges Plot No. 20-A, Knowledge Park III, Greater Noida, U P Tel: 0120 232 2655, 247 5000 Mob: 9911009144 Mob: 9717015300 Email:  enquires@iimtindia.net REACH US 1. College website : www.iimtindia.net 2. College Social Media Links : https://www.facebook.com/iimtmeerutgreaternoida/ https://www.youtube.com/iimt-group-of-colleges https://www.instagram.com/iimtindia/

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