Division of Chemical Sciences: Recent submissions
Now showing items 201-220 of 968
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Sol-gel based organic-inorganic hybrid coatings for corrosion protection of aerospace aluminium alloy
Aluminium metal is known for its high electrical conductivity, thermal conductivity and high reflectivity. Aluminium alloys of 2XXX series, particularly the 2024 alloy with the quaternary Al–Cu–Mg–Mn composition are widely ... -
Protein Adsorption on Gold Nanoparticle and Protein Surfaces Probed by Second Harmonic Light Scattering
Second harmonic light scattering (SHLS) is a highly sensitive technique to probe reactions at interfaces/surfaces because of symmetry breaking at the interface/surface produces a large surface polarization which gives ... -
Carbon-Carbon and Carbon Heteroatom Bond Forming Reactions: From Organocatalysts to Quantum Dots
Butenolides containing stereogenic centers on the ring, are commonly encountered structural motifs, found in many natural products. Consequently, there has been considerable interest in efficient and stereoselective ... -
Tuning crystal structures with weak interactions: From solid solutions to stoichiometric cocrystals
This thesis shows that when two organic compounds A and B are cocrystallized and the A∙∙∙B interactions are neither completely isotropic nor anisotropic enough to cause the formation of a stoichiometric cocrystal AxBy, ... -
Self-assembly of Luminescent Metal Nanoclusters, Supramolecular Bile salt based Gels and their Soft Nanocomposites
The thesis is based on the study of the self-assembly of multicolor luminescent nanoclusters, bile salt derived supramolecular gels and soft hybrid gel-nano composites -
Mechanistic Studies of Transfer Hydrogenation Catalyzed by Ru(ll)-Half-Sandwich and Group 6 NHC complexes
The thesis explores the mechanistic aspects of transfer hydrogenation of ketones and hydrosilylation of imines; two commonly used organic transformations catalyzed by ruthenium half-sandwich complexes of 2-oxazolidinethiones, ... -
Self-powered Broadband and Ultrafast Photoresponse using InN and InGaN grown on AlN/Si (111) by Plasma-assisted Molecular Beam Epitaxy
Group III-nitride semiconductors have enabled revolution in solid-state lighting and high-power/high-frequency electronics. Now-a-days, III-nitride based photodetectors are of great importance because of their various ... -
Analytical models of selected stochastic processes in condensed phase systems
This thesis is a record of the research I have carried out over the last five years to understand a selection of problems in the broad area of single-molecule physics. These problems cover four broad themes: (i) dynamically ... -
Study of a Self-assembling Polypeptide Nanotube: Structure, Dynamics and Applications in Cancer and Tissue engineering
This thesis contains five chapters addressing the characterization and applications of a self-assembled polypeptide nanotube. It starts with an introduction to protein-based self-assembly and RGD-based targeted approaches ... -
Chemistry of carbonized metallic nanomaterials
Magnetic nanomaterials have received significant attention because of their remarkable properties enabling applications in various fields such as catalysis, as contrast agents for magnetic resonance imaging, in sensing ... -
Metal Sulphide Based Semiconductors for Solar Photon Energy Harvesting
Sun light is a relatively infinite source of energy available on the earth compared to all other renewable and non-renewable energy sources put together. Harvesting solar photons in an effective and efficient manner can ... -
Thermoelectric Investigations of Si/β-FeSi2 composite
This thesis focuses on thermoelectric properties of environmentally friendly, cheap and non-toxic Si/β-FeSi2 composite materials. Although thermoelectric power generation is reliable and environmentally friendly technology ... -
Cocrystallization Studies Extending from Small Molecules to Proteins: a) Cocrystals, Salts and Eutectics, b) Chemical, Structural and Biological Evaluation of Anthrapyrazolones as Inhibitors of JNK proteins
In summary, we have designed and synthesized three halogenated derivatives of 1,9- pyrazoloanthrone. The involvement of halogen bonding provides highly directional interactions in the binding pocket and hence demonstrates ... -
Insights into Nucleation, Growth and Shape Control for Designing Anisotropic Nanostructures and Heterostructures
The properties of nanomaterials significantly depend on the size and shape of the nanocrystals. Thus the size and shape control becomes an important and interesting aspect of nanocrystal synthesis. Wet chemical method of ... -
Design and Application of Self-Assembled Coordination Cages for Catalysis and as Drug Carrier
In summary the present thesis accounts for the design and synthesis of various coordination cages formed through the self-assembly reaction of the newly designed pyridine and pyrimidine based ligands with various 90° ... -
Aqueous and Non- aqueous dispersions of MoS2 Nanosheets
The focus of this thesis is an attempt to provide a molecular perspective of the interactions of solvent and ligand molecules with sonication assisted exfoliated MoS2 nanosheets in aqueous and non-aqueous dispersions. In ... -
The Structural Chemistry of Boron, Borospherenes and Borophenes: A Computational Study
Structural complexity is one of the characteristics of boron chemistry. The 3D solids formed from icosahedral B12 units is thought of as most favorable arrangement for boron allotropes. However, recent discoveries in this ... -
Investigation on AxMn3O7 Class of Layered Oxides as Versatile Battery Cathodes: Structure and Electrochemistry
Rechargeable battery technologies have been the spotlight of global scientific research in the quest to address steadily growing energy demand. Currently, Li-ion batteries have unanimously occupied consumer electronic ... -
Blue and Red Shifting H-Bonding in X−H···Y(X=C, O: Y = O, N, S) Complexes: A Gas Phase FTIR and ab initio Study
Regular H-bonding is essential for sustenance of many chemical and biochemical processes and has been investigated thoroughly since its discovery in the 1920’s. However, experimental finding of blue shifting of X-H stretching ... -
Fabrication, micro-computed tomography based quantitative 3D microstructure evaluation of 3D printed bioceramic scaffolds and FE modelling of biomedical implant prototypes
In summary, this thesis provides the following outcomes: a) Formulation of novel powder-binder combination for 3D powder printing of resorbable bone-tissue scaffold. b) The effect of post-processing approach on the macro ...