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Department of Chemistry and Chemical Biology at Rensselaer Chemistry and Chemical Biology
Jonsson-Rowland Science Center
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K.V. Lakshmi

Associate Professor, Department of Chemistry and Chemical Biology
Rensselaer Polytechnic Institute

Website:
www.baruch60center.org/group

Education:
Dr. Lakshmi is trained in the development and application of advanced biophysical spectroscopy at Brandeis, the Francis Bitter Magnet Laboratory at MIT, and Yale University.

Career Highlights:
Dr. Lakshmi is the Scientific Director of the Baruch ’60 Center for Biochemical Solar Energy Research at Rensselaer. She is recognized worldwide as a leader in the current generation of young physical chemists and biophysicists for her research on the development of state-of-the-art multi-frequency multi-dimensional pulsed EPR spectroscopy, solids NMR spectroscopy and electron-nuclear spectroscopy methods. In fact, she is one of very few researchers around the world with expertise and training in developing both advanced solids NMR and pulsed multi-frequency EPR spectroscopy methods. She applies her advanced training and knowledge in magnetic resonance spectroscopy, molecular genetics, biochemistry, inorganic and bioinorganic chemistry, computational chemistry and in situ observation of light-driven intermediates to address the molecular mechanisms of solar energy conversion in natural and artificial photosynthetic systems.

Dr. Lakshmi is the recipient of several awards for her research including the Bioenergetics Award by the American Biophysical Society for outstanding contributions in the field of membrane bioenergetics, the Therese Cotton Memorial Early Career Award by the Gordon Research Conferences for excellence in photosynthesis research, and a UNESCO fellowship. She has authored over 60 peer-reviewed journal publications and is an invited speaker at numerous national and international conferences. Her current research collaborations include academic institutions and National laboratories, such as, Argonne National Laboratory, Brookhaven National Laboratory, Pacific Northwest National Laboratory, Lawrence Berkeley National Laboratory, Yale University, MIT, Harvard University, Penn State University, University of California, Berkeley, Riverside, Temple University, University of Georgia and the Indian Institutes of Technology at Delhi and Bombay. Dr. Lakshmi has served as a co-chair and chair for leading conferences on natural and artificial photosynthesis and solar energy utilization. She has also served as a scientific consultant to biotechnology, pharmaceutical and energy industries. She is a reviewer for leading scientific journals, the US Department of Energy, the National Science Foundation, the American Chemical Society, the Netherlands Organization for Scientific Research and the Biotechnology and Biological Scientific Research Council in the United Kingdom. She has held visiting appointments at Yale University, University of California, Berkeley, Argonne National Laboratory and Lawrence Berkeley National Laboratory.

Research Areas:

  • Solar energy conversion
  • Natural and artificial photosynthesis
  • Design of transition metal catalysts for water oxidation
  • Development of hybrid semiconductors for solar water oxidation and hydrocarbon production
  • Development of novel metal-oxide nanostructures for water oxidation
  • Development of graphene based photocatalysts
  • Elucidation of the mechanism of solar water oxidation in photosystem II
  • Mechanism of proton-coupled electron transfer (PCET) reactions in natural and artificial photosynthesis
  • Development of state-of-the-art advanced solids NMR and pulsed multi-frequency multi-dimensional EPR spectroscopy methods for the study of photochemical reaction intermediates
  • Development of pure quantum mechanical methods to study electron transfer and PCET reactions in natural and artificial photosynthetic systems

Selected Publications:

I. Silva, B. Jagannathan, J. H. Golbeck and K. V. Lakshmi “Elucidating the Design Principles of Photosynthetic Electron Transfer by Site-Directed Spin Labeling EPR Spectroscopy” Biochim. Biophys. Acta 2015, Manuscript in Press, DOI: 10.1016/j.bbabio.2015.08.009.

K. Yadav, B. R. Mehta, K. V. Lakshmi and J. P. Singh “Tuning the Wettability of Indium Oxide Nanowires: The Effect of Oxygen Related Defects” J. Phys. Chem. C 2015, 119, 16026.

H. Kalita, W-Z. Lee, G. Theophall, K. V. Lakshmi and M. Ravikanth “Formation of Stable B, C, N, O and P Atoms Containing a Seven-Membered Heterocycle inside Smaragdyrin Macrocycle” Chem. Eur. J. 2015, 21, 11315.

C. S. Coates, S. Milikisiyants, R. Chatterjee, M. Whittaker, J. Whittaker and K. V. Lakshmi “Superoxidized Mn(III)Mn(IV) Catalase as a Model for the Oxygen Evolving Complex of Photosystem II” J. Phys. Chem. B 2015, 119, 4905.

S. Milikisiyants, R. Chatterjee, C. S. Coates, F. M. K. Koua, J-R. Shen and K. V. Lakshmi “The Structure and Activation of Substrate Water Molecules in Sr2+-substituted Photosystem II” Phys. Chem. Chem. Phys. 2014, 16, 20834.

K. V. Lakshmi, C. S. Coates, S. Smith and R. Chatterjee “Radical Intermediates in Type II Reaction Centers” “The Biophysics of Photosynthesis” 2014, Eds. J. H. Golbeck and A. van der Est, Springer, NY, pp. 299.

R. Chatterjee, C. S. Coates, A. M. Meenaghan, S. Milikisiyants, C-I. Sophia Lee, A. Wagner, O. G. Poluektov and K. V. Lakshmi “Snapshots of Biological Proton-Coupled Electron Transfer: Electron-Nuclear Double Resonance Spectroscopy of Tyrosine Intermediates in Photosystem II” Biochemistry 2013, 52, 4781.

C. S. Coates, J. Ziegler, J. Good, K. Manz, B. Kang, S. Milikisiyants, R. Chatterjee, S. Hao, J. H. Golbeck and K. V. Lakshmi “A Cyclic Voltammetry, EPR and Hyperfine Sub-Level Correlation (HYSCORE) Spectroscopy Study of Model Naphthoquinones” J. Phys. Chem. B 2013, 117, 7210.

S. Milikisiyants, R. Chatterjee,  C. S. Coates, F. M. K. Kua, J-R. Shen and K. V. Lakshmi “The Structure and Activation of Substrate Water Molecules in the S2 State of Photosystem II Studied by Hyperfine Sublevel Correlation Spectroscopy” Energy Environ. Sci. 2012, 5, 7747.

R. Chatterjee, S. Milikisiyants and K. V. Lakshmi “Two-Dimensional 14N HYSCORE Spectroscopy of the Coordination Geometry of Ligands in Dimanganese Di-μ-oxo Mimics of the Oxygen Evolving Complex of Photosystem II” Phys. Chem. Chem. Phys. 2012, 14, 7090.

S. Milikisiyants, R. Chatterjee and K. V. Lakshmi "Two-Dimensional 1H HYSCORE Spectroscopy of Dimanganese Di-μ-oxo Mimics of the Oxygen-evolving Complex of Photosystem II" J. Phys. Chem. B 2012, 115, 12220.

R. Chatterjee, C. Coates, S. Milikisiyants, O. G. Poluektov and K. V. Lakshmi “The Structure and Function of Quinones in Biological Solar Energy Transduction: A High-Frequency D-Band EPR Spectroscopy Study of Model Benzoquinones” J. Phys. Chem. B 2011, 116, 676.

N. Srinivasan, R. Chatterjee, S. Milikisiyants, J. H. Golbeck and K. V. Lakshmi "Effect of Hydrogen Bond Strength on the Redox Properties of Phylloquinones: A Two-Dimensional Hyperfine Sublevel Correlation Spectroscopy Study of Photosystem I" Biochemistry 201150, 3495.

R. Chatterjee, S. Milikisiyants, C. S. Coates, K. V. Lakshmi "High-Resolution Two-Dimensional 1H and 14N Hyperfine Sublevel Correlation Spectroscopy of the Primary Quinone of Photosystem II" Biochemistry 201150, 491.

M. Kumar, B. R. Mehta, V. N. Singh, R. Chatterjee, S. Milikisiyants, K. V. Lakshmi and J. P. Singh "The Role of Stoichiometry of Indium and Oxygen on Gas Sensing Properties of Indium Oxide Nanostructures" Appl. Phys. Lett. 201096, 123114.

S. Milikisiyants, R. Chatterjee, A. Weyers, A. Meenaghan, C. Coates and K. V. Lakshmi “The Ligand Environment of the S2 State of Photosystem II: A Study of the Hyperfine Interactions of the Tetranuclear Manganese Cluster by 14N 2D HYSCORE Spectroscopy” J. Phys. Chem. B. 2010, 114, 10905.

B. Jagannathan, S. Dekat, J. H. Golbeck and K. V. Lakshmi "The Assembly of a Multisubunit Photosynthetic Membrane Protein Complex: A Site-Specific Spin Labeling EPR Spectroscopic Study of the Psac Subunit in Photosystem I" Biochemistry 201049, 2398.

A. M. Weyers, R. Chatterjee, S. Milikisiyants and K. V. Lakshmi "Structure and Function of Quinones in Biological Solar Energy Transduction: A Differential Pulse Voltammetry, EPR, and Hyperfine Sublevel Correlation (HYSCORE) Spectroscopy Study of Model Benzoquinones" J. Phys. Chem. B 2009113, 15409.

M. Kumar, R. Chatterjee, S. Milikisiyants, A. Kanjilal, M. Voelskow, D. Grambole, K. V. Lakshmi and J. P. Singh "Investigating the Role of Hydrogen in Indium Oxide Tubular Nanostructures as a Donor or Oxygen Vacancy Passivation Center" Appl. Phys. Lett. 200995, 013102.

M. Kumar, V. N. Singh, F. Singh, K. V. Lakshmi, B. R. Mehta and J. P. Singh "On the Origin of Photoluminescence in Indium Oxide Octahedron Structures" Appl. Phys. Lett.200892, 171907.

R. Uppal, K. V. Lakshmi and A. M. Valentine "Isolation and Characterization of the Iron-Binding Properties of a Primitive Monolobal Transferrin from Ciona Intestinalis" J. Biol. Inorg. Chem. 200813, 873.

C.-I. Lee, K. V. Lakshmi and G. W. Brudvig "Probing the Functional Role of Ca2+ in the Oxygen-Evolving Complex of Photosystem II by Metal Ion Inhibition" Biochemistry 200746, 3211-3223.

O. G. Poluektov, S. V. Paschenko, L. M. Utschig, K. V. Lakshmi and M. C. Thurnauer “Direct Evidence for Bidirectional Electron Transfer in Photosystem I” J. Amer. Chem. Soc. 2005, 127, 11910.

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