Division of Chemical Sciences: Recent submissions
Now showing items 281-300 of 968
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Nonpolar III-Nitrides Optoelectronic Devices by Plasma-Assisted Molecular Beam Epitaxy
III-Nitrides are excellent semiconductors very much suitable for modern electronic and optoelectronic applications specifically in the fields of solid-state lighting, solar cells, high power/frequency electronics and ... -
Co-solvent Induced Protein Collapse and Folding
An unfolded protein under favorable conditions navigates its complex energy landscape on a time scale of milliseconds to seconds and folds into a specific three dimensional structure. The mechanism of protein folding is ... -
Diversity and Structure-Property Correlation in Disordered Multicomponent Organic Crystal Forms
The search for new multifunctional materials continues unabated, and with the realization that in solids, the material property can be tailored using the variability provided by molecular and submolecular forces. Harnessing ... -
Structural and magnetic properties of Al-doped yttrium iron aluminum garnet and optical properties of Mn, Sr, Fe-doped ZnO prepared by solution combustion method
The structural and magnetic properties of Al substituted yttrium-iron garnet (Y3AlxFe5-xO12, x = 0, 0.1, 0.2, 0.3, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6 and 1.8) ceramic powders synthesized using solution combustion method ... -
Thermal and Femtosecond Laser-Induced CO2-Surface Chemistry on Supported Iron-Oxide Based Nanoparticle Surfaces under UHV
The thesis has been presented in two parts. The 1st part of the thesis focuses on the fundamental understanding of room temperature CO2 adsorption on iron-oxide based NP surfaces. The 2nd part describes the understanding ... -
Structure, Thermodynamics and Dynamics in Complex Systems: From Stability of Biomolecules to Phase Transitions in Polymorphic Ice
This thesis deals with the understanding of the structure, dynamics and thermodynamics in complex systems (proteins, hydration layers, DNA, ice polymorphs) by employing computer simulations, theoretical analysis, and in ... -
Catalytic Asymmetric Direct and Vinylogous Aldol, Michael and Alkylation Reactions
Pyrazoles and pyrazolones are a highly explored and privileged class of aza-heterocycles with a wide range of applications, thereby rendering a recurring interest in their synthesis and functionalization. Majority of the ... -
Understanding the influence of electric field and dual doping on cytocompatibility of calcium phosphate bioceramics: Experimental and computational study
Although doped bioceramics have been widely investigated for biomedical applications, the co-doped bioceramics remain mostly unexplored for bone regeneration and dental applications. Given this background, we have successfully ... -
Molecular Dynamics Studies of Diffusion in Confined Regions
Diffusion of guest molecules under confinement of zeolites shows many interesting properties due to guest-host interactions. This thesis explores some of these interesting behaviours relating to the diffusion of guest ... -
Micro-spectroscopic studies on Mycobacteria & Cancer cells
Evasion of the immune system is a key hallmark of cancer progression. Developing strategies that diagnose early the immune-cancer synapse may lead to long term cures from these aggressive cancers. We aimed to develop optical ... -
Design, Synthesis and Conformational Analysis of Hydrogen Bond Surrogate (HBS) Stabilized Helices in Natural Sequences. Helically Constrained Peptides for Potential DNA-Binding
Thesis titled, “Design, Synthesis and Conformational Analysis of Hydrogen Bond Surrogate (HBS) Stabilized Helices in Natural Sequences. Helically Constrained Peptides for Potential DNA-Binding”, describes the development ... -
Wide Band Gap Oxides as the Probes for Optical Based Sensing Applications
Temperature is a very critical and widely measured variable by both researchers and engineers. In this regard, most of the available temperature sensors are based on contact mode of operation. In this consideration, the ... -
Local Structural Investigations of Composition-driven Changes in Inorganic Solid Solutions
A smaller sized dopant replacing a larger sized element in a compound creates chemical pressure, resulting in a contraction of the lattice parameter and likewise a “negative” pressure is created by substitution of larger ... -
Vibrational Spectroscopic studies of Dynamics of BSA unfolding, Lysozyme-Ethanol interaction and Tissue Imaging
Vibrational spectroscopy has served as a powerful tool for understanding various structural properties of the molecules since decades. In the recent years, it has also emerged as an invaluable tool in understanding various ... -
Addressing the Challenges in Designing of Efficient Thermoelectric Materials
Thermoelectric materials offer applications in conversion of waste heat to useful electrical energy and are promising sources of renewable energy. To use a material efficiently in thermoelectric application it is necessary ... -
Transition metal phosphide nanostructures encapsulated in N,P co doped nanotubes for water splitting in wide pH range
In order to make clean and sustainable energy conversion, systems primarily requires the development of highly efficient and robust catalysts. One of the main challenges for designing the catalysts is to minimize the cost ... -
Nonequilibrium dynamics and thermodynamics of some single-particle activity-induced diffusive systems
In the mesoscopic world, diffusion is a ubiquitous process and it is usually explained by the Einstein’s theory of Brownian motion (BM). However, in the biological systems, some peculiar dynamical behaviors are observed ... -
Synthetic Applications of C-2 Substituted Glucal
This report concerns the development of a synthetic approach towards synthesis of seven-membered septanosides, such as, substituted oxepanes from protected 2-hydroxyglycals. Important precursors to the synthesis of the ... -
Methylammonium Lead Iodide thin lms grown by Pulsed Laser Deposition for Photodetector Applications
This thesis studies the fabrication and characterization of Methylammonium Lead Iodide perovskite thin films for photodetector applications. Unlike, any other perovskite halide material, Methylammonium Lead Iodide perovskite ... -
Exploration of exfoliation, functionalization and properties of MXenes via first-principles and machine learning
The monolayers of early transition metal carbides and carbonitrides named MXenes are exfoliated from the corresponding bulk MAX phases (Mn+1AXn, M = early transition metal, A = group IIIA or IVA element and X = carbon ...