A5070533164- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Optical Network Technologies
- Surfactants and Colloidal Systems
- Nonlinear Photonic Systems
- Supramolecular Self-Assembly in Materials
- Polydiacetylene-based materials and applications
- Spectroscopy and Quantum Chemical Studies
- Nonlinear Waves and Solitons
- Photochromic and Fluorescence Chemistry
- Material Dynamics and Properties
- Advancements in Semiconductor Devices and Circuit Design
- Crystallography and molecular interactions
- Phytochemistry and Bioactive Compounds
- Thermal and Kinetic Analysis
- Semiconductor Lasers and Optical Devices
- Indian History and Philosophy
- Proteins in Food Systems
- Nonlinear Dynamics and Pattern Formation
- Advanced Polymer Synthesis and Characterization
- Photonic Crystals and Applications
- Phytochemistry and Bioactivity Studies
- Block Copolymer Self-Assembly
- Nanotechnology research and applications
- Semiconductor materials and devices
University of Lucknow
2023
National Institute of Technology Patna
2023
Indian Institute of Technology Kanpur
2022
Indian Institute of Technology Jodhpur
2016-2020
Birla Institute of Technology, Mesra
1994-2012
A water insoluble peptide-hydrogel that shows unique compartmentalization by not allowing any exchange to and from the hydrogel can protect enzymes denaturation.
Understanding the regulatory factors of self-assembly processes is a necessity in order to modulate nano-structures and their properties. Here, mechanism peptide-perylenediimide (P-1) conjugate mixed solvent systems THF/water studied semiconducting properties are correlated with morphology. In THF, right handed helical fibers formed while 10% THF-water, morphology changes nano-rings along switch helicity left-handed orientation. Experimental results combined DFT calculations reveal critical...
The switching characteristics of an optically controlled Metal Semiconductor Field Effect Transistor (MESFET), popularly known as Optical (OPFET), have been derived analytically. limitations the existing model overcome in present model. Calculations are being carried out to examine effect illumination on current-voltage characteristics, drain-to-source capacitance (C/sub dc/), internal gate-to-source gs/), resistance (R/sub ds/), transconductance (g/sub m/), input RC time constant and cutoff...
Understanding lateral organizations of self-assembled bilayers is crucial to gain a control on functionally relevant topologies. We study composed surfactant, behenyl trimethyl ammonium chloride (BTMAC), cosurfactant, stearyl alcohol (SA), at ratio 2:1 in the presence water 283 K employing subsequent all-atom (AA) and coarse-grained (CG) molecular dynamics simulations. Differences initial configurations lead formation ripple or square phases interdigitated gel varying trans-leaflet...
In this paper, we have investigated propagation of two beams coupled solely due to cross action effect, and the self effect is completely absent (thirring type propagation). We identified existence surface for thirring solitons in parameter space power width ratio beams. Every point on gives appropriate beams' parameters (powers widths) obtain a soliton pair. For first time loci formation stable breather pairs. It that each solitonic there exists one hyperbolic locus such every
We investigate the concentration-dependent phase diagram of pluronic L64 in aqueous media at 300 and 320 K using coarse-grained (CG) molecular dynamics (MD) simulations. The CG model is derived by adapting Martini for nonbonded interactions along with Boltzmann inversion (BI) bonded from all-atom (AA) Our successfully captures experimentally observed micellar-, hexagonal-, lamellar-, polymer-rich solution phase. end-to-end distance reveals conformational change an open-chain structure...
Abstract There are two major groups of biocides used in the oil and gas industry to prevent souring, formation plugging, microbiologically influenced corrosion: oxidizers non-oxidizers. Oxidizing include chlorine bromine based biocides, ozone, peracetic acid, among others. Non-oxidizing can be further categorized into three sub-groups: membrane active (quaternary ammonium tetraalkyl phosphonium based), fast reactive (glutaraldehyde, dibromo nitrilopropionamide, tetrakis(hydroxymethyl)...
Micelles with different symmetries have immense applications on cosmetic formulations, oil recovery, drug delivery and so on. To understand the controlling factors responsible for shape transformations of micelles to achieve relevant time length scale, a multi-scale approach is used where an all atomistic simulation employed derive coarse-grained (CG) model micelles. Cationic surfactants, behenyltrimethyl ammonium chloride (BTMAC) in water self-assemble into cylindrical micellar phase which...
Land is precious, scarce and limited. It represents territoriality or the extents of anyone’s power. The conflict among individuals neighboring nations because land dispute. Parasnath hills are in Giridih district Jharkhand state India. Jain community had built temples tonks on most pious pilgrimage sites for them. Wildlife Sanctuaries’, a tourism development proposal was pipeline. opposed move citing reason their religious reservations. refrain from liquor pure vegetarian food choice....
A new pregnane, 12β-O-acetyl-20(S)-O-N-methylanthranilyl-3β, 8β, 14β, 17α-tetrol pregn-5-ene (12β-O-acetyl-20(S)-O-N-methylanthranilyl-sarcostin) have been isolated from Marsdenia tenacissima (family: Asclepediaceae). The structure of pregnane was elucidated by using spectroscopic techniques,1H,13C NMR, HMBC, HSQC, COSY and TOCSY ESI-MS Mass spectrometry.
Using beam propagation method, we investigated the switching behavior of a nonlinear Mach-Zehnder interferometer (NMZI). The focus present investigation was exponentially saturable type nonlinearity NMZI. results were compared with NMZIs nonlinearity. both types offer stable on and off states; however, proves to be much better, as this state higher transmission coefficient (i.e., lower device loss) those Moreover, could achieved at power levels.
The effect of variation core width and refractive index on output versus input (O-I) transmission coefficient (T-I) characteristics a nonlinear Mach-Zehnder interferometer (NMZI) were investigated for the first time. Beam propagation method has been used present investigation. Change and/or adds extra liberty changing operating power an NMZI to desired value. Moreover, it is revealed time that use only O-I or T-I characteristic presents incomplete picture switching; both balanced/imbalanced...