Teaching

M.Tech. Courses at SCNS, JNU

Nanochemistry

Features of Nanoscale Growth: Specific Features of Nanoscale Growth - Introduction - Thermodynamics of Phase Transitions -Dynamics of Phase Transitions - Thermodynamics of Spinodal Decomposition - Thermodynamics of Nucleation - Growth – Size Control - Triggering the Phase Transition - Application to Solid Nanoparticles - Controlling Nucleation – Controlling Growth - Controlling Aggregation-Stability of Colloidal Dispersions.

Physics at Nanoscale

Types of Material: Different types of materials: Metals, Semiconductors, Composite materials, Ceramics, Alloys, Polymers.

Design & Synthesis of Nanostructures

Biological Methods of Synthesis: Use of bacteria, fungi, Actinomycetes for nanoparticle synthesis, Magnetotactic bacteria for natural synthesis of magnetic nanoparticles; Mechanism of formation; Viruses as components for the formation of nanostructured materials; Biological material based metallic nanowires, Synthesis process and application. Electro-spinning Synthesis of Nanofibres, Microfluidic Synthesis of NPs, Green Synthesis of NPs. 

Renewable Energy Technology

Newer Energy Materials: Carbon nano-tubes (CNTs) and multiwall carbon nanotubes (MWCNTs), graphene, graphene oxide, reduced graphene oxide and Polymer composites -classification, methods of production, properties and its utility in making energy devices.

PG Courses that I taught at the Central University of Haryana (Odd Semester)

THEORY COURSES

Inorganic Chemistry-I (SBS CH 010101 C 4004)

Symmetry elements and symmetry operations, symmetry groups with examples from inorganic compounds, groups of  very  high  symmetry,  molecular  dissymmetry  and  optical  activity,  molecular  symmetry  of  coordination compounds, matrix representations of symmetry operators and their products.  Valence bond theory, electroneutrality principle and limitations, Brief introduction of coordination polymers-1D, 2D, 3D coordination polymers and interpenetration. 

Chemistry of Materials (SBS CH 010101 GEC 4004)

UNIT I: Nanomaterials

An Introduction. Nanomaterials and Nanocomposites. Classification of nanomaterials - one dimensional (1D) and two dimensional (2D) nanomaterials. Gas-Phase Synthesis of Nanoparticles-Physical and Chemical Vapor Synthesis Processes. Characterization of Nanomaterials: X-Ray and Electron Diffraction, Electron Microscopy, Scanning Transmission Electron Microscopy. Nanotubes, Nanorods, and Nanoplates, One-Dimensional Crystals, Carbon Nanotubes and Graphene, Nanotubes and Nanorods from Materials other than Carbon.

UNIT II: Coordination Polymers

Introduction, Classification of Coordination Polymers, Design Strategies of Coordination Polymers-Metal Nodes and Linkers, Secondary Building Unit Concept, Topology and Interpenetration, Synthesis of Coordination Polymers- Solvothermal/ Hydrothermal, Sonochemical, Microwave, Mechanochemical. Charaterization: X-ray diffraction and Spectroscopic Methods. Applications of Coordination Polymers in Gas Storage, Gas Separation, Catalysis and Drug Delivery. Zeolitic Metal-Organic Frameworks.

Inorganic Chemistry-III (SBS CH 010301 SE 4004)

UNIT I: Metal Ions in Biology

Essential and trace elements in biological systems. Calcium in biology: Calcium in living cells, transport and regulation, molecular aspects of intralecular processes. Role in muscle contraction, blood clotting mechanism and biological calcification. Biochemistry of sodium and potassium, membrane structure, mechanism of ion transport across membranes, Na+/K+ Pump, biological defense mechanism, ionophores.

UNIT II: Nitrogen Fixation and Photosynthesis

Biological nitrogen fixation, introduction of nitrogenase, iron-sulfur clusters, Fe-protein structure, MoFe-protein structure, details of P-cluster and FeMo-cluster, nitrogenase model systems. Chlorophylls, structure of chlorophyll, photosystem I and photosystem II in cleavage of water. Model systems.

UNIT III: Metalloproteins

Structure and function of metalloproteins in electron transport processes– cytochromes and iron-sulphur proteins, synthetic models. Heme proteins and oxygen uptake, myoglobin and hemoglobin basics, structure of the prosthetic group, mechanism for reversible binding of dioxygen and cooperativity of oxygen binding of myoglobin and hemoglobin, structure and function of hemocyanins and hemerythrin.

UNIT IV: Enzymes in Biological Systems

Introduction and historical perspective of enzymes, chemical and biological catalysis, remarkable properties of enzymes like catalytic power, specificity and regulation. Zinc enzymes-carboxypeptidase and carbonic anhydrase. Iron enzymes- catalase, peroxidase and cytochrome P-450. Copper enzymes- superoxide dismutase. Molybednum oxatransferase enzymes-xanthine oxidase. Coenzyme vitamin B12. 

PRACTICAL COURSES

Inorganic Chemistry Practical-I (SBS CH 010104 C 0042)

Inorganic Chemistry Practical-III (SBS CH 010303 SE 0084)