A5101487351- Digital Holography and Microscopy
- Spectroscopy Techniques in Biomedical and Chemical Research
- Optical measurement and interference techniques
- Advanced X-ray Imaging Techniques
- Additive Manufacturing and 3D Printing Technologies
- Microfluidic and Bio-sensing Technologies
- Surfactants and Colloidal Systems
- Seismic Imaging and Inversion Techniques
- Drilling and Well Engineering
- Aluminum Alloys Composites Properties
- Advanced Fluorescence Microscopy Techniques
- Innovations in Concrete and Construction Materials
- Humic Substances and Bio-Organic Studies
- Synthesis of heterocyclic compounds
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Smart Parking Systems Research
- Synthesis and Characterization of Heterocyclic Compounds
- Plasmonic and Surface Plasmon Research
- Adsorption and biosorption for pollutant removal
- Landfill Environmental Impact Studies
- High-pressure geophysics and materials
- Minerals Flotation and Separation Techniques
- Enhanced Oil Recovery Techniques
- Magnetic Properties and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
Indian Institute of Technology Delhi
2023-2024
Central University of Gujarat
2023
Indian Institute of Technology Kanpur
2021-2022
Atal Bihari Vajpayee Indian Institute of Information Technology and Management
2021
Aligarh Muslim University
2020
Government Medical College
2020
Guru Nanak Dev University
2019
In this study, an innovative route for secondary recycling (with zirconium oxide (ZrO 2 ) reinforcement) has been proposed based on melt processing of high-density polyethylene (HDPE) in low-temperature bearing applications. Initially, recycled HDPE, acrylonitrile butadiene styrene, and nylon 6 thermoplastic composites were investigated flow index (MFI) according to ASTM D1238 standard. Based the acceptable MFI, HDPE matrix was selected second-stage twin screw extrusion (TSE). The final...
We report the fabrication of low cost highly structured silver (Ag) capped aluminium (Al) nanorods (NRs) as surface enhanced Raman spectroscopy (SERS) substrate utilising glancing angle deposition (GLAD) technique. The nano-capping onto Al NRs can concentrate local electric field within minimal volume that serve hotspots. average size Ag nanocaps were 50 nm. newly proposed nanoporous SERS could detect signal Rhodamine 6G (R6G) up to 10-15 molar concentration. significant enhancement in order...
Abstract We present a high‐resolution white light quantitative phase nanoscopy (WLQPN) system that can be utilized to visualize nanoparticles and subcellular features of the biological specimens. The five‐phase shifting technique, along with deconvolution, is adopted obtain super‐resolution in imaging. technique provide full detector resolution, making it beneficial as compared well‐known Fourier analysis method. transform method requires minimum angle , where maximum achievable spatial...
Quantitative phase measurements in a Transport of intensity equation(TIE) based method requires capturing images at multiple defocussed positions. Using these along with the obtained we demonstrate an optimization algorithm that improves quantitative estimation recovering fine details may be lost due to diffraction effects, aberrations and limitations TIE method. We implement cost minimization scheme minimize difference between measured theoretically expected amplitude improve estimate...
Abstract An optimization algorithm is presented for the deconvolution of a complex field to improve resolution and accuracy quantitative phase imaging (QPI). A high‐resolution map can be recovered by solving constrained problem using gradient operator. The method demonstrated on measurements samples white light based shifting interferometry (WLPSI) method. application real simulated objects shows significant contrast improvement. Experiments performed Escherichia coli bacterium have revealed...
A mild, catalyst and oxidant-free efficient protocol for synthesizing α-ketothioamides is reported with a broad substrate scope. The presented demonstrates the confined reactivity of amines. polysulfide derived from elemental sulfur amines in an aqueous medium drives pathway toward diverse over thioamides. Substrates different substituent groups were compatible protocol, respective ketothioamides separated good to excellent yields. ketothioamides, known exhibit anti-cancer properties,...
A novel method is presented for high resolution biological cell imaging by implementing deconvolution of complex fields reconstructed from white light phase shifting interferometry(WLPSI). WLPSI a highly sensitive quantitative imaging(QPI) technique, however its spatial still diffraction-limited and affected aberrations. By formulating the image formation using coherent model, posed as constrained optimization problem that solved iteratively gradient operator. The application algorithm on...
A new high resolution label free imaging method is presented using a white light phase shifting interferometry(WLPSI) and applying deconvolution to obtain map of cellular objects. WLPSI highly sensitive quantitative imaging(QPI) technique, however its spatial still diffraction-limited affected by aberrations. By formulating the image formation coherent model, posed as constrained optimization problem that solved iteratively complex gradient operator. The application algorithm on real...