All Stories

  1. Real-time immune monitoring of immunocompromised patients via lens-free shadow image analysis of natural killer cells

    Article • Sensors and Actuators B Chemical, January 2026, Elsevier

    Samir Kumar

  2. Field-Deployable Lens-Free Imaging Platform for Rapid Label-Free Analysis of Natural Killer Cell Activation

    Article • Journal of Visualized Experiments, August 2025, MyJove Corporation

    Samir Kumar

  3. Multi-Channel Cellytics for Rapid and Cost-Effective Monitoring of Leukocyte Activation

    Article • Biosensors, February 2025, MDPI AG

    Samir Kumar

  4. Multi-Channel Cellytics for Rapid and Cost-Effective Leukocyte Activation Monitoring

    Article • January 2025, MDPI AG

    Samir Kumar

  5. Cellytics: A Digital Inline Holography Platform for Single Cell Analysis in Biomedical and Environmental Applications

    Article • October 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Samir Kumar

  6. Investigation ofNK Cell Activity in Healthy and Immunocompromised Individuals Using Lens-Free Shadow Imaging Technology

    Article • October 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Samir Kumar

  7. Rapid and Field Portable Water Quality Monitoring Using Lens-Free Shadow Imaging Technology and Machine Learning

    Article • October 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Samir Kumar

  8. Use of a platform with lens-free shadow imaging technology to monitor natural killer cell activity

    Article • Biosensors and Bioelectronics, October 2024, Elsevier

    Samir Kumar

  9. Stabilization of Vapor-Rich Bubble in Ethanol/Water Mixtures and Enhanced Flow around the Bubble

    Article • The Journal of Physical Chemistry C, September 2024, American Chemical Society (ACS)

    Samir Kumar

  10. Microbubble oscillation on localized heat source affected by dissolved gases in water

    Article • Journal of Applied Physics, March 2024, American Institute of Physics

    Samir Kumar

  11. Label-Free CD34+ Cell Identification Using Deep Learning and Lens-Free Shadow Imaging Technology

    Article • Biosensors, November 2023, MDPI AG

    Samir Kumar

  12. Colloidal Quantum Dot Nanolithography: Direct Patterning via Electron Beam Lithography

    Article • Nanomaterials, July 2023, MDPI AG

    Samir Kumar

  13. Proof-of-Concept: Smartphone- and Cloud-Based Artificial Intelligence Quantitative Analysis System (SCAISY) for SARS-CoV-2-Specific IgG Antibody Lateral Flow Assays

    Article • Biosensors, June 2023, MDPI AG

    Samir Kumar

  14. Smartphone- and Cloud-based Artificial Intelligence Quantitative Analysis System (SCAISY) for SARS-CoV-2-specific IgG Antibody Lateral Flow Assays

    Article • April 2023, MDPI AG

    Samir Kumar

  15. Plasmonic Sensors: A New Frontier in Nanotechnology

    Article • Biosensors, March 2023, MDPI AG

    Samir Kumar

  16. Field-portable seawater toxicity monitoring platform using lens-free shadow imaging technology

    Article • Water Research, February 2023, Elsevier

    Samir Kumar

  17. Ferrite Nanoparticles for Sensing Applications

    Article • January 2023, Springer Science + Business Media

    Dr. Sachin Gupta, Samir Kumar

  18. Facile microfluidic synthesis of monodispersed size-controllable quantum dot (QD) microbeads using custom developed QD photoresist

    Article • Nanoscale, January 2023, Royal Society of Chemistry

    Samir Kumar

  19. GLAD Based Advanced Nanostructures for Diversified Biosensing Applications: Recent Progress

    Article • Biosensors, December 2022, MDPI AG

    Samir Kumar

  20. Sculptured thin films: Overcoming the limitations of surface-enhanced Raman scattering substrates

    Article • Applied Surface Science Advances, December 2022, Elsevier

    Samir Kumar

  21. Colloidal Quantum Dot Nanopatterning with E-beam lithography on flexible PET

    Article • July 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Samir Kumar

  22. Machine Learning Based CD34+ Cell Detection using Lens-Free Shadow Imaging Technology

    Article • July 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Samir Kumar

  23. Quantification of Natural Killer Cell Activation using Lens-Free Shadow Imaging Technology

    Article • July 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Samir Kumar

  24. Size-Controllable Fabrication of Quantum Dot Micro-Beads Using a Custom Developed UV-Curable CdSe and InP QD Photoresist

    Article • July 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Samir Kumar

  25. Gold Micropetals Self‐Assembled by Shadow‐Sphere Lithography for Optofluidic Control (Adv. Mater. Interfaces 18/2022)

    Article • Advanced Materials Interfaces, June 2022, Wiley

    Samir Kumar

  26. Gold Micropetals Self‐Assembled by Shadow‐Sphere Lithography for Optofluidic Control

    Article • Advanced Materials Interfaces, April 2022, Wiley

    Samir Kumar

  27. A CMOS Image Sensor Based Refractometer without Spectrometry

    Article • Sensors, February 2022, MDPI AG

    Samir Kumar

  28. Field-Portable Leukocyte Classification Device Based on Lens-Free Shadow Imaging Technique

    Article • Biosensors, January 2022, MDPI AG

    Samir Kumar

  29. Recent Developments in Atomic Force Microscopy and Raman Spectroscopy for Materials Characterization

    Article • January 2022, IntechOpen

    Samir Kumar

  30. Quantum dot photolithography using a quantum dot photoresist composed of an organic–inorganic hybrid coating layer

    Article • Nanoscale Advances, January 2022, Royal Society of Chemistry

    Samir Kumar

  31. Colloidal Quantum Dot Nanopatterning with E-beam lithography on flexible PET

    Article • January 2022, Optical Society of America (OSA)

    Samir Kumar

  32. Machine Learning based CD34+ Cell Detection using Lens-free Shadow Imaging Technology

    Article • January 2022, Optical Society of America (OSA)

    Samir Kumar

  33. Quantification of Natural Killer Cell Activation using Lens-free Shadow Imaging Technology

    Article • January 2022, Optical Society of America (OSA)

    Samir Kumar

  34. Size-Controllable Fabrication of Quantum Dot Micro-Beads Using a Custom Developed UV-Curable CdSe and InP QD Photoresist

    Article • January 2022, Optical Society of America (OSA)

    Samir Kumar

  35. Study on transport of molecules in gel by surface-enhanced Raman spectroscopy

    Article • Cellulose, October 2021, Springer Science + Business Media

    Samir Kumar

  36. Silver Micro-Nanoparticles - Properties, Synthesis, Characterization, and Applications

    Article • September 2021, IntechOpen

    Samir Kumar

  37. Studies on Composition and Optical Properties of β-FeSi<sub>2</sub> Thin Film Prepared by Co-sputtering

    Article • Vacuum and Surface Science, September 2021, Surface Science Society Japan

    Samir Kumar

  38. Plasmonic structures self-assembled by glancing angle deposition for optofluidic devices

    Article • August 2021, SPIE

    Samir Kumar

  39. Study on Transport of Molecules in Gel by Surface-Enhanced Raman Spectroscopy

    Article • July 2021, Springer Science + Business Media

    Samir Kumar

  40. Highly stable and reproducible Au nanorod arrays for near-infrared optofluidic SERS sensor

    Article • Materials Letters, March 2021, Elsevier

    Samir Kumar

  41. Thermochromic visualization of the heated region around a microbubble during Marangoni flow generation

    Article • Journal of Nanophotonics, February 2021, SPIE

    Samir Kumar

  42. Water droplet bouncing on a non-superhydrophobic Si nanospring array

    Article • Nanoscale Advances, January 2021, Royal Society of Chemistry

    Samir Kumar

  43. Highly reproducible, large scale inkjet-printed Ag nanoparticles-ink SERS substrate

    Article • Results in Materials, December 2020, Elsevier

    Samir Kumar

  44. 21st Century Surface Science - a Handbook

    Article • November 2020, IntechOpen

    Samir Kumar

  45. Surface-Enhanced Raman Scattering: Introduction and Applications

    Article • November 2020, IntechOpen

    Samir Kumar

  46. Multilayer thin-film flake dispersion gel for surface-enhanced Raman spectroscopy

    Article • Applied Nanoscience, October 2020, Springer Science + Business Media

    Samir Kumar

  47. Experimental Evidence of a Twofold Electromagnetic Enhancement Mechanism of Surface-Enhanced Raman Scattering

    Article • The Journal of Physical Chemistry C, September 2020, American Chemical Society (ACS)

    Samir Kumar

  48. Application of self-assembled plasmonic structures for micro fluidic control and sensing

    Article • August 2020, SPIE

    Samir Kumar

  49. Self‐Oscillation of Locally Heated Water Vapor Microbubbles in Degassed Water

    Article • Advanced Materials Interfaces, August 2020, Wiley

    Samir Kumar

  50. Experimental Evidence of Two-fold Electromagnetic Enhancement Mechanism of Surface-Enhanced Raman Scattering

    Article • June 2020, American Chemical Society (ACS)

    Samir Kumar

  51. Experimental Evidence of Two-fold Electromagnetic Enhancement Mechanism of Surface-Enhanced Raman Scattering

    Article • June 2020, American Chemical Society (ACS)

    Samir Kumar

  52. Manipulation of mica flakes using photothermally generated microbubbles

    Article • June 2020, SPIE

    Samir Kumar

  53. Plasmonic Nanoslit Arrays Fabricated by Serial Bideposition: Optical and Surface-Enhanced Raman Scattering Study

    Article • ACS Applied Bio Materials, April 2020, American Chemical Society (ACS)

    Samir Kumar

  54. Broadband terahertz study of flexible polymer thin films

    Article • January 2020, American Institute of Physics

    Samir Kumar

  55. Thermoplasmonics for investigation of microbubble dynamics in degassed water

    Article • September 2019, SPIE

    Samir Kumar

  56. Direction control of quasi-stokeslet induced by thermoplasmonic heating of a water vapor microbubble

    Article • Scientific Reports, March 2019, Springer Science + Business Media

    Samir Kumar

  57. Proposal for a gel-based SERS sensor

    Article • March 2019, SPIE

    Samir Kumar

  58. Flexible and robust SERS active substrates for conformal rapid detection of pesticide residues from fruits

    Article • Sensors and Actuators B Chemical, March 2017, Elsevier

    Samir Kumar

  59. Vertically standing nanoporous Al–Ag zig-zag silver nanorod arrays for highly active SERS substrates

    Article • The Analyst, January 2017, Royal Society of Chemistry

    Samir Kumar

  60. Highly sensitive multifunctional recyclable Ag–TiO2 nanorod SERS substrates for photocatalytic degradation and detection of dye molecules

    Article • RSC Advances, January 2016, Royal Society of Chemistry

    Samir Kumar

  61. Mechanical strain induced wetting transitions between anisotropic and isotropic on polydimethylsiloxane (PDMS) films patterned by optical discs

    Article • Applied Surface Science, November 2015, Elsevier

    Samir Kumar

  62. Mechanical Strain Induced Tunable Anisotropic Wetting on Buckled PDMS Silver Nanorods Arrays

    Article • ACS Applied Materials & Interfaces, April 2015, American Chemical Society (ACS)

    Samir Kumar

  63. Morphology dependent surface enhanced fluorescence study on silver nanorod arrays fabricated by glancing angle deposition

    Article • RSC Advances, January 2015, Royal Society of Chemistry

    Samir Kumar

  64. Applications of plasmonics: general discussion

    Article • Faraday Discussions, January 2015, Royal Society of Chemistry

    Prof. Silvan Schmid, Samir Kumar

  65. A facile method for fabrication of buckled PDMS silver nanorod arrays as active 3D SERS cages for bacterial sensing

    Article • Chemical Communications, January 2015, Royal Society of Chemistry

    Samir Kumar

  66. Highly sensitive superhydrophobic Ag nanorods array substrates for surface enhanced fluorescence studies

    Article • Applied Physics Letters, January 2014, American Institute of Physics

    Samir Kumar

  67. Fabrication of superhydrophobic silver nanorods array substrate using glancing angle deposition

    Article • January 2014, American Institute of Physics

    Samir Kumar

  68. Flexible and optically transparent silver nano-islands film

    Article • January 2014, American Institute of Physics

    Samir Kumar

  69. Plasmonic Nanoslit Arrays Fabricated by Serial Bideposition: Optical and Surface-Enhanced Raman Scattering Study

    Article • American Chemical Society (ACS)

    Samir Kumar