A5054962368- Liquid Crystal Research Advancements
- Photonic Crystals and Applications
- Photonic and Optical Devices
- Advanced Materials and Mechanics
- Quantum Dots Synthesis And Properties
- Surfactants and Colloidal Systems
- Nonlinear Optical Materials Studies
- Semiconductor Lasers and Optical Devices
- Polydiacetylene-based materials and applications
- Advanced biosensing and bioanalysis techniques
- Ocular Surface and Contact Lens
- Mechanical and Optical Resonators
- Plant Reproductive Biology
- Advanced Chemical Sensor Technologies
- Advanced Antenna and Metasurface Technologies
- Antenna Design and Analysis
- Smart Agriculture and AI
- Advanced Sensor and Energy Harvesting Materials
- Biosensors and Analytical Detection
- Microwave Engineering and Waveguides
- Material Properties and Applications
- Probiotics and Fermented Foods
- Membrane Separation and Gas Transport
- Tribology and Wear Analysis
- Advanced Optical Imaging Technologies
International Centre for Genetic Engineering and Biotechnology
2025
Delhi Technological University
2025
Department of Biotechnology
2025
University of Lucknow
2018-2024
National United University
2023-2024
Babasaheb Bhimrao Ambedkar University
2022
Military University of Technology in Warsaw
2022
Lovely Professional University
2021
Amity University
2019
A demand for functional materials that are capable of tailoring light-emissive properties has apparently been rising nowadays substantially their utilization in organic optoelectronic devices. Motivated by such promising characteristics, we present highly emissive as well aggregation-induced emission (AIE) electroluminescent composite systems composed a nematic liquid crystals (NLC) blended with polyethylene-functionalized gold nanospheres (GNSs). The major findings this study include...
In present work, Cu:ZnO nanoparticles (NPs) used to disperse in pure nematic liquid crystal N-(4-methoxybenzylidene)-4-butylaniline (MBBA). Due their larger dipole moment of NPs have stronger interactions with the molecules which lead enhance ordering as demonstrated by increase value mean dielectric permittivity. The dispersion on behavior and activation energies a function temperature frequency has studied for various concentrations NPs. complex permittivity relaxation are dependent...
In this paper, we investigate a commercial nematic liquid crystal (LC) mixture namely E7 dispersed with small concentrations of multi-walled carbon nanotubes (MWCNTs). The dielectric and electro-optical characterizations have been carried out in the homogeneously vertically aligned LC cells. response molecules has enhanced by 60% after addition MWCNTs, which is attributed to reduced rotational viscosity composites. MWCNTs act like barricades for ionic impurities reducing them up ∼34.3%...
We represent a detailed study of dilute suspension ferroelectric barium titanate nanoparticles (BaTiO3 NPs) in nematic matrix by probing dielectric, electro-optical, and optical properties. The strong local surface electric field (order ∼1010 Vm−1) BaTiO3 produces pseudonematic domains within the matrix, which renders an enhancement both perpendicular parallel components dielectric permittivity that increases with increasing NP concentrations. Due to changes molecular ordering, anisotropy...
The fluorescent attributes of several composites realized by dispersing dyes and quantum dots in an ESIPT-active columnar liquid crystal have been reported three condensed states, viz ., solid, LC, their solutions.
This study introduces a novel methodology for the microfluidic colorimetric detection of soil analytes, offering enhanced efficiency assessing plant growth parameters. Microfluidic channels (µPADs) were fabricated on paper substrates...
Bhupendra Pratap Singha, Govind Pathaka, Aradhana Roya, Gurumurthy Hegdeb, Pankaj Kumar Tripathic , Atul Srivastavaa & Rajiv Manohar*aa Liquid Crystal Research Lab, Department of Physics, University Lucknow, Indiab Centre for Nano-materials and Displays, BMS College Engineering, Bangalore, Indiac Division Development, Lovely Professional University, Phagwara, India
A 4 mm-aperture hole-patterned liquid crystal (LC) lens has been fabricated using a LC mixture, which consisted of rutile titanium dioxide (TiO 2 ) nanoparticles (NPs) and nematic E7, for the first time. The TiO NP dopant improves addressing operation voltages significantly because it strengthens electric field surrounding increases capacitance cell. Unlike doping common colloidal NPs, that NPs phase transition temperature birefringence thereby helping enhance power lens. In comparison with...
This research paper presents an inventive technique to swiftly create microfluidic channels on distinct membrane papers, enabling colorimetric drug detection. Using a modified DIY RepRap 3D printer with syringe pump, (µPADs) are crafted flexible nylon-based substrate. allows simultaneous detection of four common drugs single reagent. An optimized blend polydimethylsiloxane (PDMS) dissolved in hexane is used hydrophobic various filter papers. The PDMS-hexane mixture infiltrates the paper's...
Abstract In this study, the response time of a 4 mm-aperture hole-patterned liquid crystal (HLC) lens has been significantly improved with doping N-benzyl-2-methyl-4-nitroaniline (BNA) and rutile titanium dioxide nanoparticle (TiO 2 NP) nanocomposite. The proposed HLC provides focus defocus times that are 8.5× 14× faster than pristine lens, respectively. Meanwhile, reach order millisecond. Result shows synergistic effect BNA TiO NP induces 78% decrement in viscosity LC mixture shortens lens....
This study explores the impact of electrode polarization on SnSe nanosheets blended with liquid crystal cells and investigates how impurity ions influence performance crystal.
The requirement of selecting a desired wavelength channel from number available wavelengths is great research interest for application in advanced light-wave systems encompassing high-density wavelength-division multiplexed networks. Currently, devices generally require high power and complex instrumentation. In the present work, performance parameters novel functional composite material have been augmented selection purposes to meet limitations existing technologies. active comprises...
This research presents a novel patch antenna prototype that operates in the THz range for early detection of malignant cancerous cells. The has dimensions 100 µm × and achieves −27.3 dB return loss at an operating frequency 2.34 THz. proposed sensor is optimized polyimide substrate with dielectric constant 3.5 thickness 15.7 µm. prototype's sensitivity performance are evaluated by simulating different neoplasms using High-Frequency Simulation Software (HFSS) five types breast cancer results...
Abstract This study presents a comparative analysis of analytical calculations and simulation results single-ring split ring resonator (SRR). A simulated SRR made aluminum, designed in high frequency structure simulator (HFSS), with the resonant 3.97 GHz transmission loss −47.7 dB. The initial gap, width, thickness are set at 1 mm, 3 respectively. These geometrical parameters subsequently varied simulations, theoretical conducted for each variation using Python 3.10 code to facilitate...