KAUSHIK CHOUDHURY
@ccamp.res.in
Translation Scientist
Centre for Cellular and Molecular Platforms
Hi, I am Kaushik. I am a physicist by training and an entrepreneur by inclination. I work at the interface of physics and engineering, to develop affordable healthcare solutions and point-of-care diagnostics. Presently, I am working as Translation Scientist with DIA in Centre for Cellular and Molecular Platforms (Bengaluru, India). I have co-founded Iota Design & Innovations Lab Pvt. Ltd. - a company that designs, develops and commercialises healthcare products. I have a firm belief that technologies developed in academic labs should go beyond academic publications and/or vanity patents and must reach to the society for the collective good.
EDUCATION
Ph.D. (jointly from IIT Bombay and Monash University)
RESEARCH, TEACHING, or OTHER INTERESTS
Atomic and Molecular Physics, and Optics, Engineering
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Pabitraa Madhurima, Shikha Tripathi, Pratika Mishra, Kaushik Choudhury, Prasoon Kumar, Santosh Kumar, and Earu Banoth
Elsevier BV
Kamasani Aarya Sree, Anusha Yagnik, Prerna Komal Chordiya, Kaushik Choudhury, and Prasoon Kumar
Elsevier BV
Aavishkar Katti, Draupath Umesh, Kaushik Choudhury, and Sachin Kulkarni
Optica Publishing Group
We prove the existence of gap solitons supported by a photonic lattice embedded in an unbiased photovoltaic photorefractive crystal for the first time. Double-hump and multi-hump gap solitons are found to exist in the first finite band gap but no gap solitons are found to exist in the second finite band gap.
Kaushik Choudhury, Atul Srivastava, Rajesh Kumar Singh, and Ajai Kumar
Elsevier
Prasoon Kumar, Khalid Baig Mirza, Kaushik Choudhury, Magali Cucchiarini, Henning Madry, and Pratyoosh Shukla
Wiley
AbstractTissue engineering is a systematic approach of assembling cells onto a 3D scaffold to form a functional tissue in the presence of critical growth factors. The scaffolding system guides stem cells through topological, physiochemical, and mechanical cues to differentiate and integrate to form a functional tissue. However, cellular communication during tissue formation taking place in a reactor needs to be understood properly to enable appropriate positioning of the cells in a 3D environment. Hence, sensors and actuators integrated with cyber‐physical system (CPS) may be able to sense the tissue microenvironment and direct cells/cellular aggregates to an appropriate position, respectively. This can facilitate better cell‐to‐cell communication and cell–extracellular matrix communication for proper tissue morphogenesis. Advancements are made in the field of smart scaffolds that can morph cells/cellular aggregates after sensing the cellular microenvironment in a desired 3D architecture by providing appropriate cues. Recent scientific developments in the additive manufacturing technology have enabled the fabrication of smart scaffolds to create structural and functional tissue constructs. Sensors/actuators, cyber‐systems, smart materials, and additive manufacturing put together is expected to lead to improved tissue‐engineered medical products. The present review aims to highlight the possibilities of advancement of BioCPS for tissue engineering and regenerative medicine.
Priyanka Pulugu, Sumanta Ghosh, Shital Rokade, Kaushik Choudhury, Neha Arya, and Prasoon Kumar
Elsevier BV
Biswajit Mishra, Pratikkumar Manvar, Kaushik Choudhury, S. Karagadde, and Atul Srivastava
Springer Science and Business Media LLC
AbstractWe report experiments on crystallization of highly undercooled forsterite melt droplets under atmospheric and sub-atmospheric pressure conditions. Experiments have been conducted under non-contact conditions using the principles of aero-dynamic levitation. Real time dynamics of solidification, along with the transient evolution of surface textures, have been recorded using high speed camera for three cooling rates. These images have been matched with the time-tagged temperature data to understand the effect of pressure conditions and cooling rates on the crystallization dynamics. Compared to normal pressure, relatively higher levels of undercooling could be achieved under sub-atmospheric conditions. Results showed a strong dependence of surface textures on pressure conditions. For any externally employed cooling rate, relatively small length scale morphological textures were observed under sub-atmospheric conditions, in comparison to those achieved under ambient conditions. The observed trends have been explained on the basis of influence of pressure conditions on recalescence phenomenon and the rate at which latent heat of crystallization gets dissipated from the volume of the molten droplet. Sub-atmospheric experiments have also been performed to reproduce one of the classical chondrule textures, namely the rim + dendrite double structure. Possible formation conditions of this double structure have been discussed vis-à-vis those reported in the limited literature. To the best of our knowledge, the reported study is one of the first attempts to reproduce chondrules-like textures from highly undercooled forsterite melt droplets under sub-atmospheric non-contact conditions.
Kaushik Choudhury, R.K. Singh, P. Kumar, Mukesh Ranjan, Atul Srivastava, and Ajai Kumar
Elsevier BV
Kaushik Choudhury, R. K. Singh, Surya Narayan, Atul Srivastava, and Ajai Kumar
Springer Science and Business Media LLC
Atul Srivastava, Ajai Kumar, Mukesh Ranjan, Rajesh K. Singh, and Kaushik Choudhury
SPIE
Time resolved experimental investigation of laser produced plasma-induced shockwaves has been carried out in the presence of confining walls placed along the lateral directions using a Mach Zehnder interferometer in air ambient. Copper was used as target material. The primary and the reflected shock waves and their effects on the evolution of medium density and the plasma density have been studied. The reflected shock wave has been seen to be affecting the shape and density of the plasma plume in the confined geometry. The same experiments were performed with water and isopropyl alcohol as the ambient liquids and the produced nanoparticles were characterised for size and size distribution. Significant differences in the size and size distribution are seen in case of the nanoparticles produced from the ablation of the targets with and without confining boundary. The observed trend has been attributed to the presence of confining boundary and the way it affects the thermalisation time of the plasma plume. The experiments also show the effect of medium density on the mean size of the copper nanoparticles produced.
Kaushik Choudhury, R. K. Singh, Surya Narayan, Atul Srivastava, and Ajai Kumar
AIP Publishing
An experimental investigation of the laser produced plasma induced shock wave in the presence of confining walls placed along the axial as well as the lateral direction has been performed. A time resolved Mach Zehnder interferometer is set up to track the primary as well as the reflected shock waves and its effect on the evolving plasma plume has been studied. An attempt has been made to discriminate the electronic and medium density contributions towards the changes in the refractive index of the medium. Two dimensional spatial distributions for both ambient medium density and plasma density (electron density) have been obtained by employing customised inversion technique and algorithm on the recorded interferograms. The observed density pattern of the surrounding medium in the presence of confining walls is correlated with the reflected shock wave propagation in the medium. Further, the shock wave plasma interaction and the subsequent changes in the shape and density of the plasma plume in confined geometry are briefly described.
Saikat Chattopadhyay, Naveen V. Kulkarni, Kaushik Choudhury, R. Prasad, Aga Shahee, B.N. Raja Sekhar, and P. Sen
Elsevier BV