G
Gokul Nalupurackal
Researcher at Indian Institute of Technology Madras
Publications - 12
Citations - 27
Gokul Nalupurackal is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Optical tweezers & Geology. The author has co-authored 1 publications.
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Journal ArticleDOI
Estimation of rolling work of adhesion at the nanoscale with soft probing using optical tweezers
Muruga Lokesh,Rahul Vaippully,Gokul Nalupurackal,Srestha Roy,Vidya P. Bhallamudi,Anil Prabhakar,Basudev Roy +6 more
TL;DR: In this article, the authors show that if a birefringent particle is confined in linearly polarized optical tweezers, and then the surface is moved in the direction tangential to the plane, a rolling motion can be induced.
Journal ArticleDOI
A hydro-thermophoretic trap for microparticles near a gold-coated substrate
Gokul Nalupurackal,M. Gunaseelan,Srestha Roy,Muruga Lokesh,Sumeet Kumar,Rahul Vaippully,Rajesh Singh,Basudev Roy +7 more
TL;DR: In this article , two hotspots in close proximity to each other were placed to form a very unique configuration of flow fields forming an effective quasi-three-dimensional "trap" assisted by thermophoresis.
Journal ArticleDOI
Simultaneous Optical Trapping and Electromagnetic Micromanipulation of Ferromagnetically Doped NaYF4 Microparticles
Gokul Nalupurackal,Gunaseelan Murugan,Muruga Lokesh,Rahul Vaippully,Amit Chauhan,Birabar Nanda,Chandran Sudakar,Hema Chandra Kotamarthi,Priyankan Datta,Pallab Sinha Mahapatra,Anita Jannasch,Erik Schäffer,Senthilselvan Jayaraman,Basudev Roy +13 more
TL;DR: In this article , the authors used ferromagnetic iron-doped upconversion microparticles for simultaneous optical trapping and magnetic micromanipulation that allows full control over all translational and rotational degrees of freedom.
Journal ArticleDOI
Comparison of translational and rotational modes towards passive rheology of the cytoplasm of MCF-7 cells using optical tweezers
Srestha Roy,Rahul Vaippully,Muruga Lokesh,Gokul Nalupurackal,Privita Edwina,Saumendra Bajpai,Basudev Roy +6 more
TL;DR: In this paper , the rotational and translational viscoelasticity of MCF-7 cells were compared using a colloidal particle placed inside the cell cytoplasm.
Proceedings ArticleDOI
Towards Stirling engine from a single up-converting particle confined in an optical trap at pump-wavelength exhibiting Hot Brownian Motion
TL;DR: In this article , an up-converting particle (UCP) is trapped in a tweezers with properly oriented motion and the activity vanishes when trapped with 1064 nm laser.