Department of Chemistry
We are looking for enthusiastic students for Ph.D. and post-doctoral position. Interested students may write to us.
PUBLICATIONS
“The joy of discovery is certainly the liveliest that the mind of man can ever feel”
- Claude Bernard -
Rahul Singh, N.V.S. Praneeth, Subarna Biswas, Manoj Palabathuni, Anandu Muralidharan, Nimai Mishra, Saumyakanti Khatua. Understanding the Size-Dependent Photostability and Photoluminescence Intermittency of Blue-Emitting Core/Graded Alloy/Shell “giant”-Quantum Dots. Advanced Optical Materials, 2024, Wiley.
N. V. S. Praneeth, Syed Akhil, Amitrajit Mukherjee, Sudipta Seth, Saumyakanti Khatua, Nimai Mishra. Amine-Free Multi-Faceted CsPbBr3 Nanocrystals for Complete Suppression of Long-Lived Dark States. Advanced Optical Materials, 2024, Wiley.
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.
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)
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.
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.
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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 (https://doi.org/10.1109/JSEN.2020.2996228).
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S. Kumar, S. Khatua, P. Thareja*, Fumed alumina in nematic liquid crystal suspensions under shear and electric field. Rheologica Acta 58, 203 (2019).
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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
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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
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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).
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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).
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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
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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
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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).
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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).
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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).
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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).
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S. Khatua and M. Orrit, Probing, sensing, and fluorescence enhancement with single gold nanorods. J. Phys. Chem. Lett. 5, 3000 (2014).
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S. Khatua and M. Orrit, Toward single-molecule microscopy on a smart phone. ACS Nano 7, 8340 (2013).
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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).
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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).
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H. Yuan, S. Khatua, P. Zijlstra, and M. Orrit, Individual gold nanorods report on dynamical heterogeneity in supercooled glycerol. Faraday Discussions. 167, 515 (2013).
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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).
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M. Yorulmaz, S. Khatua, P. Zijlstra, A. Gaiduk, and M. Orrit, Luminescence quantum yield of single gold nanorods. Nano Letters. 12, 4385 (2012).
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W. S. Chang, J. B. Lassiter, P. Swanglap, H. Sobhani, S. Khatua et al., A Plasmonic Fano Switch. Nano Letters. 12, 4977 (2012).
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S. Khatua, W. S. Chang, P. Swanglap, J. Olson, and S. Link, Active modulation of nanorod plasmons. Nano Letters. 11, 3797 (2011).
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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).
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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).
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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).
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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).
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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).
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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).
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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).
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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).