• Organic Chemistry
• Metal Speciation

• Organic Chemistry
• Inorganic Chemistry
• Physical Chemistry

• My broad research interests encompass understanding trace metal speciation and biogeochemistry in marine environments, while also developing nanotechnology-based solutions to combat environmental pollution. Specifically, I aim to elucidate mechanisms governing toxic metal partitioning, fate, and transport in estuarine, coastal, and open ocean systems. I am fascinated by how natural organic and inorganic ligands interact with metals to impact their mobility, bioavailability, and biogeochemical cycling. My goal is quantifying these complex relationships across priority metals like mercury, lead, cadmium, and arsenic. Additionally, I am interested in designing and applying nano-adsorbents and nano-catalysts for remediating major pollution events like oil spills. This entails synthesizing and characterizing nanoscale materials, modeling their interfaces with contaminants, and evaluating performance across a range of aquatic environments. Understanding nanomaterial stability, degradability, and potential toxicity would be critical. I envision these research thrusts being complementary. My expertise with analytical speciation techniques and marine biogeochemistry can inform nano-adsorbent design and implementation in the field. Reciprocally, employing nano-remediation solutions following spills could uncover intriguing impacts on native metal speciation. Overall, I am driven to holistically study pressing issues in aquatic contamination and leverage cross-disciplinary tools spanning environmental geochemistry, nanotechnology, and more. Blending analytical excellence with novel nano-solutions could provide transformative environmental insights and remediation strategies.

Journals

1. Ramteke, D., Chakraborty, P., Chennuri, K., & Sarkar, A. (2021). Geochemical fractionation study in combination with equilibrium based chemical speciation modelling of Cd in finer sediments provide a better description of Cd bioavailability in tropical estuarine systems. Science of The Total Environment, 764, 143798.
2. Chennuri, K., Chakraborty, P., Jayachandran, S., Mohakud, S. K., Ishita, I., Ramteke, D., Padalkar, P.P., Babu, P.C. & Babu, K. R. (2020). Operationally defined mercury (Hg) species can delineate Hg bioaccumulation in mangrove sediment systems: A case study. Science of The Total Environment, 701, 134842.
3. Padalkar, P. P., Chakraborty, P., Chennuri, K., Jayachandran, S., Sitlhou, L., Nanajkar, M., Tilvi, S. & Singh, K. (2019). Molecular characteristics of sedimentary organic matter in controlling mercury (Hg) and elemental mercury (Hg0) distribution in tropical estuarine sediments. Science of the total environment, 668, 592-601.
4. Chakraborty, P., Jayachandran, S., Lekshmy, J., Padalkar, P., Sitlhou, L., Chennuri, K., Shetye, S., Sardar, A. & Khandeparker, R. (2019). Seawater intrusion and resuspension of surface sediment control mercury (Hg) distribution and its bioavailability in water column of a monsoonal estuarine system. Science of The Total Environment, 660, 1441-1448.
5. Jayachandran, S., Chakraborty, P., Ramteke, D., Chennuri, K., & Chakraborty, S. (2018). Effect of pH on transport and transformation of Cu-sediment complexes in mangrove systems. Marine pollution bulletin, 133, 920-929.
6. Chakraborty, P., Vudamala, K., Chennuri, K., Armoury, K., Linsy, P., Ramteke, D., Sebastian, T., Jayachandran, S., Naik, C., Naik, R. & Nath, B. N. (2016). Mercury profiles in sediment from the marginal high of Arabian Sea: an indicator of increasing anthropogenic Hg input. Environmental Science and Pollution Research, 23(9), 8529-8538.
7. Chakraborty, P., Ramteke, D., Chakraborty, S., Chennuri, K., & Bardhan, P. (2016). Corrigendum to" Relationship between the lability of sediment-bound Cd and its bioaccumulation in edible oyster"[Mar. Pollut. Bull. 100 (2015) 344-351]. Marine Pollution Bulletin, 105(1), 437-437.
8. Chakraborty, P., Ramteke, D., Chakraborty, S., Chennuri, K., & Bardhan, P. (2015). Relationship between the lability of sediment-bound Cd and its bioaccumulation in edible oyster. Marine Pollution Bulletin, 100(1), 344-351.
9. Chakraborty, P., Vudamala, K., Coulibaly, M., Ramteke, D., Chennuri, K., & Lean, D. (2015). Reduction of mercury (II) by humic substancesinfluence of pH, salinity of aquatic system. Environmental Science and Pollution Research, 22(14), 10529-10538.
10. Chakraborty, P., Chakraborty, S., Ramteke, D., & Chennuri, K. (2014). Kinetic speciation and bioavailability of copper and nickel in mangrove sediments. Marine pollution bulletin, 88(1-2), 224-230.
11. Chakraborty, P., Sander, S. G., Jayachandran, S., Nath, B. N., Nagaraju, G., Chennuri, K., Vudamala, K., Lathika, N. & Mascarenhas-Pereira, M. B. L. (2014). Fate of copper complexes in hydrothermally altered deep-sea sediments from the Central Indian Ocean Basin. Environmental pollution, 194, 138-144.
12. Chakraborty, P., Yao, K. M., Chennuri, K., Vudamala, K., & Raghunadh Babu, P. V. (2014). Interactions of mercury with different molecular weight fractions of humic substances in aquatic systems. Environmental earth sciences, 72(3), 931-939.
13. Chakraborty, P., Babu, P. R., Vudamala, K., Ramteke, D., & Chennuri, K. (2014). Mercury speciation in coastal sediments from the central east coast of India by modified BCR method. Marine pollution bulletin, 81(1), 282-288.