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“The joy of discovery is certainly the liveliest that the mind of man can ever feel”

- Claude Bernard -

Joshi, Gayatri; Kashyap, Rajesh; Patrikar, Kalyani; Mondal, Anirban; Khatua, Saumyakanti. Ligand-mediated electron transport channels enhance photocatalytic activity of plasmonic nanoparticles. Nanoscale, 2023, Advance Article.

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Ingle, Jaypalsing; Uttam, Bhawna; Panigrahi, Reha; Khatua, Saumyakanti; Basu, Sudipta. Dog-bone shaped gold nanoparticle-mediated chemo-photothermal therapy impairs the powerhouse to trigger apoptosis in cancer cells. J. Mater. Chem. B, 2023, Advance Article.

Kar, A., Praneeth, N. V. S., Khatua, S., & Datta, B. (2023). Use of Single-Molecule Plasmon-Enhanced Fluorescence to Investigate Ligand Binding to G-Quadruplex DNA. The Journal of Physical Chemistry Letters, 14, 6321-6327. (Cover Art)

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Kar, A., Praneeth, N. V. S., Khatua, S., & Datta, B. (2023). Use of Single-Molecule Plasmon-Enhanced Fluorescence to Investigate Ligand Binding to G-Quadruplex DNA. The Journal of Physical Chemistry Letters, 14, 6321-6327.

Kumar, N., Sharma, A., Bahirat, A., Joshi, G., & Khatua, S. (2023). Efficient Harvesting of> 1000 nm Photons to Hydrogen via Plasmon-Driven Si–H Activation in Water. The Journal of Physical Chemistry C. (Cover Art)


Kumar, N., Sharma, A., Bahirat, A., Joshi, G., & Khatua, S. (2023). Efficient Harvesting of> 1000 nm Photons to Hydrogen via Plasmon-Driven Si–H Activation in Water. The Journal of Physical Chemistry C.

Joshi, G., Chakrabarty, S., Khatua, S., & Jasuja, K. (2022). TiB2 derived nanosheets co-immobilized with triangular gold nanoparticles elicit fast and stable photocatalytic hydrogen evolution. International Journal of Hydrogen Energy.


Joshi, G., Saha, A., Dutta, A. & Khatua, S. (2022). NIR-Driven Photocatalytic Hydrogen Production by Silane- and Tertiary Amine-Bound Plasmonic Gold Nanoprisms. ACS Applied Materials and Interfaces.

Paital, D., Bansal T., & Khatua, S. (2022). Photoelectrochemical Water Oxidation with Plasmonic Au@MnOx Core–Shell Nanoparticles. ACS Applied Nano Materials.


Roy, A., Paital, D., & Khatua, S. (2022). Pd-Coated Au Triangular Nanoprisms as Catalysts for Hot-Carrier-Driven Photochemistry. ACS Applied Nano Materials.

Joshi, G., Mir, A. Q., Layek, A., Ali, A., Aziz, S. T., Khatua, S., & Dutta, A. (2022). Plasmon-Based Small-Molecule Activation: A New Dawn in the Field of Solar-Driven Chemical Transformation. ACS Catalysis, 12, 1052-1067.


Kar, A.; Manjeet; Paital,D., Khatua, S. Establishing Surface Charge as a Key Control Parameter for Linker-Driven Tip-Specific Ordering of Anisotropic Gold Nanoparticles. J. Phys. Chem. C (2021)

Ghosh, P., Thambi, V., Kar, A., Chakraborty, A. L., & Khatua, S. (2021). Light-induced in situ active tuning of the LSPR of gold nanorods over 90 nm. Optics Letters, 46(18), 4562-4565.


Zarin, A. S., Chakraborty, A. L., & Khatua, S. (2020). Time-resolved studies of bioluminescence from photobacterium leiognathi and rapid antimicrobial susceptibility testing on E. Coli using tunable diode laser spectroscopy. IEEE Sensors Journal, 20(19), 11073-11081.

Adhikari, S., Spaeth, P., Kar, A., Baaske, M. D., Khatua, S.*, & Orrit, M.* (2020). Photothermal microscopy: imaging the optical absorption of single nanoparticles and single molecules. ACS nano.


Thambi, V.; Gautam, A. R. S.; Khatua, S.Core-Shell Au@AuAg Nano-Peanuts for the Catalytic Reduction of 4-Nitrophenol: Critical Role of Hollow Interior and Broken Shell Structure. Nanoscale Advances (2020) 

Kar, A.; Thambi, V.; Paital, D., Joshi, G., Khatua, S. Synthesis of solution stable end-to-end linked gold nanorod dimers via pH-dependent surface. Langmuir 2020. 


Kar, A.; Thambi, V.; Paital, D., Khatua, S. In situ modulation of gold nanorod's surface charge drives the growth of end-to-end assemblies from dimers to large networks that enhance single- molecule fluorescence by 10 000-fold. Nanoscale Adv. 2020, 2 (7), 2688–2692.
This article is part of the themed collection: Nanoscale Advances HOT Article Collection.

Mir, A. Q.; Joshi, G.; Ghosh, P.; Khandelwal, S.; Kar, A.; Hegde, R.; Khatua, S.; Dutta, A. Plasmonic Gold Nanoprism-Cobalt Molecular Complex Dyad Mimics Photosystem-II for Visible-NIR Illuminated Neutral Water Oxidation. ACS Energy Lett. 2019, 4, 2428–2435.

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Ghosh, P.; Kar, A.; Khandelwal, S.; Vyas, D.; Mir, A. Q.; Chakraborty, A. L.; Hegde, R. S.; Sharma, S.; Dutta, A.; Khatua, S. Plasmonic CoO-Decorated Au Nanorods for Photoelectrocatalytic Water Oxidation. ACS Appl. Nano Mater. 2019, 2 (9), 5795–5803.

Thambi, V.; Kar, A.; Ghosh, P.; Paital, D.; Gautam, A. R. S.; Khatua, S. Synthesis of Complex Nanoparticle Geometries via pH-Controlled Overgrowth of Gold Nanorods. ACS Omega 2019, 4 (9), 13733–13739.


Thambi, V.; Kar, A.; Ghosh, P.; Khatua, S. Light-Controlled in Situ Bidirectional Tuning and Monitoring of Gold Nanorod Plasmon via Oxidative Etching with FeCl3. J. Phys. Chem. C 2018, 122, 24885–24890. 

  • S. Zarin, A. L. Chakraborty*, S. Khatua, High time-resolution studies of bioluminescence from Photobacterium leiognathi and rapid antimicrobial susceptibility testing on E coli using tunable diode laser spectroscopy, Accepted IEEE Sensors, 2020 (

  • S. Kumar, S. Khatua, P. Thareja*, Fumed alumina in nematic liquid crystal suspensions under shear and electric field. Rheologica Acta 58, 203 (2019).

  • P Jana, M Radhakrishna, S Khatua, S Kanvah*, A “turn-off” red-emitting fluorophore for nanomolar detection of heparin. Physical Chemistry Chemical Physics 20, 13263, (2018).


Conference Proceedings from IIT Gandhinagar

  • P Ghosh, A Kar, V Thambi, A. L. Chakraborty*, and S. Khatua*, "Large and controllable light-induced shift of the longitudinal surface plasmon resonance of gold nanorods submerged in hydroquinone solution", IEEE WRAP, Dec 2019, IIT Guwahati. DOI: 10.1109/WRAP47485.2019.9013902


  • P Ghosh, G. Joshi, R. Hegde, A. L. Chakraborty, and S. Khatua*, “Synthesis of gold nanodroplets with field enhancement of 105 at their tips using a simple wet-chemical method” CLEO, Germany 2019 (OSA publishing).


  • P Ghosh, A Kar, A L Chakraborty, S Sharma, A Dutta, and S. Khatua*, “Photoelectrochemical water splitting with cobalt oxide coated gold nanorods under visible excitation”, CLEO, Germany 2019 (OSA publishing).

  • P. Ghosh, V. Thambi, S. Khatua*, and A. L. Chakraborty*, Synthesis of gold nanorods with tunable surface plasmon resonance for near-infrared biosensing applications. Accepted for publication in IEEE Workshop on Recent Advances in Photonics WRAP 2017, Hyderabad, India. doi:10.1109/WRAP.2017.8468598

Book Chapters

  • R.S. Hegde* and S. Khatua, 2019, Hot-Carrier Generation in Plasmonic Nanostructures: Physics and Device Applications. Nanoelectronics by Elsevier publication.

Publications Before Joining IIT Gandhinagar

  • B. Pradhan, S. Khatua, A Gupta, T. J. Aartsma, G.W. Canters, and M. Orrit*, GoldNanorod-Enhanced FCS of Fluorophores with High Quantum Yield in Lipid Bilayers. Journal of Physical Chemistry C 120, 25993, (2016). 


  • A. Carattino, S. Khatua, and M. Orrit*, In situ tuning of gold nanorod plasmon through oxidative cyanide etching. Physical Chemistry Chemical Physics 18, 15619, (2016). 


  • S. Khatua, H. Yuan, and M. Orrit*, Enhanced-fluorescence correlation spectroscopy at micro-molar dye concentration around a single gold nanorod. Physical Chemistry Chemical Physics 17, 21127, (2015). 


  • S. Khatua, P†. M. R. Paulo†, H. F. Yuan†, A. Gupta, P. Zijlstra, and M. Orrit, Resonant plasmonic enhancement of single-molecule fluorescence by individual gold nanorods. ACS Nano 8, 4440 (2014). 


  • S. Khatua and M. Orrit, Probing, sensing, and fluorescence enhancement with single gold nanorods. J. Phys. Chem. Lett. 5, 3000 (2014). 


  • S. Khatua and M. Orrit, Toward single-molecule microscopy on a smart phone. ACS Nano 7, 8340 (2013).


  •  H. F. Yuan†, S. Khatua†, P. Zijlstra, M. Yorulmaz, and M. Orrit, Thousand-fold enhancement of single-molecule fluorescence near a single gold nanorod. Angewandte. Chemie. Internaltional. Edition. 52, 1217 (2013). 

  • P. L. E. Chu, L. Y. Wang, S. Khatua, A. B. Kolomeisky et al., Synthesis and SingleMolecule Imaging of Highly Mobile Adamantane-wheeled Nanocars. ACS Nano 7, 35 (2013). 


  • H. Yuan, S. Khatua, P. Zijlstra, and M. Orrit, Individual gold nanorods report on dynamical heterogeneity in supercooled glycerol. Faraday Discussions. 167, 515 (2013). 


  • J. Olson, P. Swanglap, W. S. Chang, S. Khatua et al., Detailed Mechanism for the Polarization Switching of Nanorod Plasmons. Physical Chemistry Chemical Physics 15, 4195 (2013). 


  • M. Yorulmaz, S. Khatua, P. Zijlstra, A. Gaiduk, and M. Orrit, Luminescence quantum yield of single gold nanorods. Nano Letters. 12, 4385 (2012). 


  • W. S. Chang, J. B. Lassiter, P. Swanglap, H. Sobhani, S. Khatua et al., A Plasmonic Fano Switch. Nano Letters. 12, 4977 (2012). 


  • S. Khatua, W. S. Chang, P. Swanglap, J. Olson, and S. Link, Active modulation of nanorod plasmons. Nano Letters. 11, 3797 (2011). 


  • G. Vives, J. M. Guerrero, J. Godoy, S. Khatua, Y. P. Wang, J. L. Kiappes, S. Link, and J. M. Tour, Synthesis of fluorescent dye-tagged nanomachines for single-molecule fluorescence spectroscopy. J. Org. Chem. 75, 6631 (2010). 


  •  S. Khatua, P. Manna, W. S. Chang, A. Tcherniak, E. Friedlander, E. R. Zubarev, and S. Link, Plasmonic nanoparticles-liquid crystal composites. Journal of Physical Chemistry C 114, 7251 (2010). 


  •  S. Khatua, J. Godoy, J. M. Tour, and S. Link, Influence of the substrate on the mobility of individual nanocars. Journal of Physical Chemistry Letters 1, 3288 (2010). 


  • S. Khatua, J. M. Guerrero, K. Claytor, G. Vives, A. B. Kolomeisky, J. M. Tour, and S. Link, Micrometer-scale translation and monitoring of individual nanocars on glass. ACS Nano 3, 351 (2009). 


  •  K. Claytor, S. Khatua, J. M. Guerrero, A. Tcherniak, J. M. Tour, and S. Link, Accurately determining single molecule trajectories of molecular motion on surfaces. Journal of Chemical Physics 130, 9, 164710 (2009). 


  •  A. Tcherniak, D. Solis, S. Khatua, A. A. Tangonan, T. R. Lee, and S. Link, Chain-length dependent nematic ordering of conjugated polymers in a liquid crystal solvent. Journal of the American Chemical Society 130, 12262 (2008). 


  • D. Panda, S. Khatua, and A. Datta, Enhanced fluorescence of epicocconone in surfactant assemblies as a consequence of depth-dependent microviscosity. Journal of Physical Chemistry B 111, 1648 (2007). 


  •  D. Panda, P. P. Mishra, S. Khatua, A. L. Koner, R. B. Sunoj, and A. Datta, Anomalous excited-state dynamics of lucifer yellow ch in solvents of high polarity: Evidence for an intramolecular proton transfer. Journal of Physical Chemistry A 110, 5585 (2006).

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