Advance Paper II Paper IV: Nanotechnology

Unit I

Background to Nanoscience: Definition of Nano, Scientific revolution-

Atomic Structure and atomic size; emergence and challenges of nanoscience and nanotechnology; carbon age-new form of carbon (CNT to Graphene); influence of nano over micro/macro; size effects and crystals; large surface to volume ration; surface effects on the properties; Nanotoxicology; Problems due to nanomaterials

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Unit II

Types of nanostructure and properties of nanomaterials:

One dimensional; two dimensional and three dimensional; nano-structured materials; Quantum Dots shell structures; metal oxides; semiconductors; composites; mechanical-physical-chemical properties

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Unit III

Synthesis of bulk nanostructured materials:

Sol Gel processing-bulk and nano composite materials; Grinding -high energy ball milling; Injection moulding-extrusion-melt quenching and annealing; Self-assembly-Self Assembled Monolayers (SAM); Vapour Liquid Solid (VLS) approach; Chemical Vapour Deposition (CVD); Langmuir-Blodgett (LB) films; Spin coating; Templated self-assembly; Electrochemical approaches; Thin films- Epitaxy; Lithography; Green synthesis

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Unit IV

Characterization:

Spectroscopic techniques: UV- visible spectroscopy; Infra-red spectroscopy (IR); Raman Spectroscopy;

X-ray diffraction; lattice parameters; structure analyses; strain analyses; phase identification; particle size using Dynamic Light scattering (DLS); Zeta Potential (ZP)

Surface Imaging: Field Emission Scanning Electron Microscope (FESEM); Transmission Electron Microscopy (TEM); Atomic Force Microscopy (AFM); Scanning Tunneling Microscopy (STM)

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Unit V

Application of Nanotechnology:

Nanotechnology for Drug delivery and waste reduction and improved energy efficiency; nanotechnology based water treatment strategies; Nanoporous polymers and their applications in water purification; Use of nanoparticles for environmental remediation; Case studies and Regulatory needs

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