Dr. Satyabrata Si
Assistant Professor, DST Ramanujan Fellow
Ph.D. in Chemistry (2007), Indian Association for the Cultivation of Science, Kolkata.
MSc in Chemistry (1999), Ravenshaw Autonomous College, Cuttack


Email:
[email protected]

Professional Experiences

February 2014 - Continue Assistant Professor (DST-Ramanujan Fellow), School of Applied Science & Center of Industrial Technology;
Adjunct Faculty, School of Biotechnology; KIIT, Bhubaneswar.
March 2013 – January 2014 DST-Ramanujan Fellow, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar.
January 2011 – September 2012 Post-doctoral Fellow, ICMCB-University of Bordeaux1, Bordeaux, France.
November 2009 – December 2010 Post-doctoral Fellow, CPMOH-University of Bordeaux1, Bordeaux, France.
November 2008 – October 2009 Post-doctoral Fellow, IPCMS-University of Strasbourg, Strasbourg, France.
October 2007 – October 2008 Post-doctoral Fellow, University of Neuchâtel, Neuchâtel, Switzerland.
September 2002-September 2007 Junior & Senior Research Fellow, Polymer Science Unit, IACS, Kolkata, India.
March 2001-September 2002 Junior Research Fellow, Institute of Minerals and Materials Technology, Bhubaneswar, India.

Fellowships, Awards, and Achievements

  • Ramanujam Fellowship (2012), DST, Government of India.
  • DST Fast Track Scheme for Young Scientists (2012), DST, Government of India.
  • Postdoctoral Fellowship (November 2008 - September 2012) from CNRS, France.
  • Postdoctoral Fellowship (October 2007 – October 2008) from SNSF, Switzerland.
  • Junior and Senior Research Fellowship (2002-2007) from CSIR, Government of India.
  • Graduate Aptitude Test in Engineering (GATE-2000) from  HRD, Government of India.
  • Dr. Radhanath Rath Scholarship (1997-1999).
  • National Scholarship (1992-1997).

Professional Membership

  • Life member of Indian Association for the Cultivation of Science, Kolkata, India
  • Life member of Odisha Chemical Society, India

Current Research Activity

  • Methodology for novel nanostructures.
  • Hybrid nanostructures for catalytic applications.
  • Novel nanostructures for electrochemical application.
  • Nanocomposite polymer electrolytes for electrochemical application.
  • Gold nanostructures for opto-electronic & biological applications.
  • Novel organic ligands for nano-surface functionalization.
  • Studying cell-nanoparticles interaction through surface functionalization.
  • Studying chemistry at the interface of materials science and biology.
  • Sensing & mitigation of environmental pollutants using nanomaterials.

Invited Talk

  • National Seminar on Materials Chemistry and Catalysis (MCC-VI), 26 – 27 March 2014 held at Department of Chemistry, North Orissa University, Baripada, Odisha.
  • MACRO 2015: International Symposium on Polymer Science and Technology, 23-26 January 2015 held at IACS Kolkata, India.

LAB

Nanocomposite Polymer Electrolytes
Organic-inorganic hybrid nanocomposites polymer electrolytes (NCPE) gain importance because of their improved mechanical, thermal, chemical, electrochemical stability and high conductivity at room temperature. Materials in the nano-scale exhibit new and improved properties compared to their bulk counterparts due to the reduced phase dimensions of the inorganic and the organic matrix. Use of inorganic nanoparticles is one of the most promising ways to improve the electrochemical performance of polymer electrolytes. For industrial application the conductivity of a polymer electrolyte should be as high as 10-2 Scm-1, but the conductivity of most reported polymers is still below 10-4 Scm-1. Thus our prime objective is to increase the ionic conductivity of a polymer electrolyte either by decreasing its crystalinity or increasing the ionic mobility using inorganic nanomaterials as additives. Incorporation of nanomaterials also helps in increasing the mechanical strength and the durability of the resulting cell construction. Thus, the ultimate goal envisaged within this project is to design novel NCPE and investigation of their fundamental properties like, spectroscopic, microscopic, thermal, electrical, mechanical properties etc.

Ref: Key Eng. Mater. 2013, 571, 27-56; J. Nanosci. Nanotech. 2015 (In Press)

NIR-Absorbing Gold Nanostructures
Research on gold nanoparticles has attracted huge interest owing to their unique opto-electronic properties, which have potential important applications in biological imaging and sensing. These properties are related to the surface plasmon resonance of the metal nanoparticle, which give rise to a strong absorbance and scattering cross section. A useful feature of the SPR band is its sensitivity to local environment. The use of NIR-absorbing gold nanostructures has many additional advantages: the particle plasmon resonance appears in the biological transparent region (700-1100 nm), exhibits a larger spectral shift and have much smaller full width at half-maximum of the scattering spectrum. Thus, this type of nanostructures can be useful to label live cells for imaging application using the photothermal technique.


Photothermal images of live cells using Au nanostructures.

Ref: ChemPhysChem 2012, 13, 193; Nano Lett. 2013, 13, 1489; Methods Cell Bio. 2015, 125, 13

Oxide-Metal Composite Catalysts
Catalysts play an imperative role in both chemical industry and environmental remediation due to their specificity, effectiveness and ease of processing. Currently, composite catalysts are being explored intensively because of their high activity, high selectivity and better stability. Modulating the composite surfaces not only offer novel properties but also introduces surface restructuring for enhancing the catalytic activity at the molecular level. The goal is to designing novel composite catalyst for organic conversion as well as environmental remediation.

Organic-Inorganic Hybrid Composite Adsorbants
Dye is one of the most significant pollutants in the effluents of textile, paper, plastic, food and cosmetic industries. There is a huge quantity of dyes generated from many industries. Recently, the removal of dyes from effluent has given much consideration in controlling water pollution. Adsorption is one of the processes, being widely used for dye removal and has wide applicability in wastewater treatment. Composite materials are being used as adsorbants, in which the surface property can be modulated for effective adsorption of different dye molecules.

Selected Publications

Full List
  1. Size-controlled synthesis of magnetite nanoparticles in the presence of polyelectrolytes; Satyabrata Si, A. Kotal, T. K. Mandal, S. Giri, H. Nakamura and T. Kohara; Chem. Mater. 2004, 16, 3489 - 3496.
  2. A mechanistic and kinetic study of the formation of metal nanoparticles by using synthetic tyrosine-based oligopeptides; Satyabrata Si, R. R. Bhattacharjee, A. Banerjee and T. K. Mandal; Chem. Eur. J. 2006, 12, 1256 - 1265.
  3. pH-Controlled reversible assembly of peptide-functionalized gold nanoparticles;Satyabrata Si and T. K. Mandal; Langmuir 2007, 23, 190 - 195.
  4. One-dimensional assembly of peptide functionalized gold nanoparticles: An approach toward mercury ion sensing; Satyabrata Si, A. Kotal and T. K. Mandal; J. Phys. Chem. C 2007, 111, 1248 - 1255.          
  5. Tryptophan-based peptides to synthesize gold and silver nanoparticles: A mechanistic and kinetic study; Satyabrata Si and T. K. Mandal, Chem. Eur. J. 2007, 13, 3160 - 3168.
  6. In situ synthesis of gold and silver nanoparticles using redox active amphiphiles and their phase transfer to organic solvents; Satyabrata Si, E. Dinda and T. K. Mandal; Chem. Eur. J. 2007, 13, 9850 - 9861.
  7. Ligand exchange on Au25 cluster with chiral thiols; Satyabrata Si, C. Gautier, J. Boudon, S. Gladiali, R. Taras, and T. Bürgi; J. Phys. Chem. C 2009, 113, 12966 - 12969.
  8. Short gold nanorods growth revisited: The critical role of bromide counter ion; Satyabrata Si, C. Leduc, M.-H. Delville and B Lounis; ChemPhysChem 2012, 13, 193-202.
  9. Peptide-intercalated layered metal hydroxides: Effect of peptide chain length and side chain functionality on structural, optical and magnetic properties; Satyabrata Si, A. Taubert, A. Mantion, G. Rogez and P Rabu; Chem. Sci. 2012, 3, 1945-1957.
  10. A highly specific gold nanoprobe for live-cell single-molecule imaging; C. Leduc, Satyabrata Si, J. Gautier, M. Soto-Ribeiro, B. Wehrle-Haller, A. Gautreau, G. Giannone, L. Cognet  and B. Lounis; Nano Lett. 2013, 13, 1489-1494.
  1. Organic-Inorganic Hybrid Nanocomposite: Electrolytes for Electrochemical Devices (Principal Investigator, DST-Ramanujan Fellowship, Government of India, 2013-2018)
  2. NIR-Absorbing Gold Nanostructures for Biological Application (Principal Investigator, DST Fast Track Project, Government of India, 2014-2017)

 

 

  1. Mr Jagdeep Mohanta, PhD student
  2. Mr Smithsagar Satapathy, PhD student

 

A. Publications in Referred Journals:

  1. Size-controlled synthesis of magnetite nanoparticles in the presence of polyelectrolytes; Satyabrata Si, A. Kotal, T. K. Mandal, S. Giri, H. Nakamura and T. Kohara; Chem. Mater. 2004, 16, 3489 - 3496. Impact Factor: 8.535
  2. Peptide-assisted synthesis of gold nanoparticles and their self-assembly; R. R. Bhattacharjee, A. K. Das, D. Haldar, Satyabrata Si, A. Banerjee and T. K. Mandal; J. Nanosci. Nanotech.2005, 5, 1141 - 1147. Impact Factor: 1.339
  3. A mechanistic and kinetic study of the formation of metal nanoparticles by using synthetic tyrosine-based oligopeptides;              Satyabrata Si, R. R. Bhattacharjee, A. Banerjee and T. K. Mandal; Chem. Eur. J. 2006, 12, 1256 - 1265. Impact Factor: 5.696
  4. Interparticle interaction and size effect in polymer coated magnetite nanoparticles; M. Thakur, K. Dey, S. Giri, Satyabrata Si, A. Kotal, T. K. Mandal, H. Nakamura and T. Kohara; J. Phys.: Condens. Matter 2006, 18, 9093 - 9104.  Impact Factor: 2.223
  5. pH-Controlled reversible assembly of peptide-functionalized gold nanoparticles; Satyabrata Si and T. K. Mandal; Langmuir 2007, 23, 190 - 195. Impact Factor: 4.384
  6. One-dimensional assembly of peptide functionalized gold nanoparticles: An approach toward mercury ion sensing; Satyabrata Si, A. Kotal and T. K. Mandal; J. Phys. Chem. C 2007, 111, 1248 - 1255.           (Most-Accessed Articles: July-September, 2007) Impact Factor: 4.835
  7. Tryptophan-based peptides to synthesize gold and silver nanoparticles: A         mechanistic and kinetic study; Satyabrata Si and T. K. Mandal, Chem. Eur. J. 2007, 13, 3160 - 3168. Impact Factor: 5.696
  8. In situ synthesis of gold and silver nanoparticles using redox active amphiphiles and their phase transfer to organic solvents; Satyabrata Si, E. Dinda and T. K. Mandal; Chem. Eur. J. 2007, 13, 9850 - 9861. Impact Factor: 5.696
  9. Synthesis of semitelechelic POSS-polymethacrylate hybrids by thiol-mediated controlled radical polymerization with unusual thermal behaviors; A. Kotal, Satyabrata Si, T. K. Paira and T. K. Mandal; J. Polym. Sci. Part A: Polym. Chem. 2008, 46, 1111 - 1123.  Impact Factor: 3.543
  10. Novel ascorbic acid based ionic liquids for the in situ synthesis of quasi-spherical and anisotropic gold nanostructures in aqueous medium; E. Dinda, Satyabrata Si, A. Kotal and T. K. Mandal; Chem. Eur. J. 2008, 14, 5528 - 5537. Impact Factor: 5.696
  11. Reversible self-assembly of carboxylated peptide-functionalized gold nanoparticles driven by metal-ion coordination; Satyabrata Si, M. Raula, T. K. Paira and T. K. Mandal; ChemPhysChem 2008, 9, 1578-1584. Impact Factor: 3.360
  12. In situ synthesis of shape-selective gold nanocrystals using oligopeptide template: Effect of various reaction parameters; Satyabrata Si, E. Dinda and T. K. Mandal; J. Nanosci. Nanotech.2008,8, 5934 - 5941. Impact Factor: 1.339
  13. Ligand exchange on Au25 cluster with chiral thiols; Satyabrata Si, C. Gautier, J. Boudon, S. Gladiali, R. Taras, and T. Bürgi; J. Phys. Chem. C 2009, 113, 12966 - 12969. Impact Factor: 4.835
  14. Peptide-polymer bioconjugates via atom transfer radical polymerization and their solution aggregation into hybrid micro/nanospheres for dye uptake; T. K. Paira, S. Banerjee, M. Raula, A. Kotal, Satyabrata Si and T. K. Mandal; Macromolecules 2010, 43, 4050 - 4061. Impact Factor: 5.927
  15. Short gold nanorods growth revisited: The critical role of bromide counter ion; Satyabrata Si, C. Leduc, M.-H. Delville and B Lounis; ChemPhysChem 2012, 13, 193-202. Impact Factor: 3.360
  16. Peptide-intercalated layered metal hydroxides: Effect of peptide chain length and side chain functionality on structural, optical and magnetic properties; Satyabrata Si, A. Taubert, A. Mantion, G. Rogez and P Rabu; Chem. Sci. 2012, 3, 1945-1957. Impact Factor: 8.314
  17. Gold Nanoparticle Deposition on Silica Nanohelices: A New Controllable 3D Substrate in Aqueous Suspension for Optical Sensing; R. Tamoto, S. Lecomte, Satyabrata Si, S. Moldovan, O. Ersen, M.-H. Delville and R. Oda; J. Phys. Chem. C, 2012, 116, 23143-23152. Impact Factor: 4.835
  18. A highly specific gold nanoprobe for live-cell single-molecule imaging; C. Leduc, Satyabrata Si, J. Gautier, M. Soto-Ribeiro, B. Wehrle-Haller, A. Gautreau, G. Giannone, L. Cognet  and B. Lounis; Nano Lett. 2013, 13, 1489-1494. Impact Factor: 12.940
  19. Determination of the elastic properties of SiO2 nanotubes templated from organic amphiphilic self-assemblies through inorganic transcription; S. Houmadi, D. Dedovets, Satyabrata Si , R. Tamoto, R. Oda, M. H. Delville and C. Bergaud; Appl. Phys. Lett. 2013, 102, 151904. Impact Factor: 3.739
  20. Additives for Solid Polymer Electrolytes: The Layered Nanoparticles; Satyabrata Si; Key Eng. Mater. 2013, 571, 27-56. (A part of the special edition “Layered Clay Materials for Functional Applications”, Edited by. T. Mishra and N Das; Trans Tech Publications, Switzerland)
  21. Enhancing optofluidic actuation of micro-objects by tagging with plasmonic nanoparticles; J. Burgin, Satyabrata Si, M.-H. Delville and J.-P. Delville; Opt. Express 2014, 22, 10139-10150. Impact Factor: 3.525
  22. Single-molecule imaging in live cell using gold nanoparticles; C. Leduc, Satyabrata Si, J. J. Gautier, Z. Gao, E S. Shibu, A Gautreau, G. Giannone, L. Cognet, B Lounis; Methods in Cell Biology 2015, 125, 13-27.
  23. Effect of Silica Nanostructures on the Li+ ion Conductivity of Nanocomposite Polymer Electrolytes; J. Mohanta, M. S. Anwar and Satyabrata Si; J. Nanosci. Nanotech. 2015 (In Press)

B. Proceedings Papers

  1. Dissolution studies on Cu-Ni-Co-Fe matte obtained from manganese nodules; Satyabrata Si, S. Anand, C. W. Nam, K. H. Park and R. P. Das; Proceedings of The Fifth (2003) Ocean Mining Symposium, Tsukuba, Japan, September 15-19, 2003, 231-  237. (ISBN 1-880653-61-3).
  2. Synthesis and elastic properties of SiO2 nanotubes and helical nanosprings templated from organic amphiphilic self-assemblies through inorganic transcription; S. Houmadi, S. Habtoun, D. Dedovet, Satyabrata Si, R. Tamoto, R. Oda, M. H. Delville and C. Bergaud; 2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), Barcelone, Espagne, 16-20 June 2013, 952-955; doi: 10.1109/Transducers.2013.6626926.
  3. Promoting optofluidic actuation of microparticles with plasmonic nanoparticles;  J. Burgin, Satyabrata Si, M. H. Delville, J. P. Delville; Proceedings of the SPIE Meeting on Optics & Photonics San Diego, California USA, August 17-21, 2014.

C. Books/ Books Chapters

  1. “Graphene: Synthesis, Properties and Application”, S. C. Sahu, A. K. Samantara, J. Mohanta, B. K. Jena, and Satyabrata Si, in the book “Polymer Nanocomposites Based on Inorganic and Organic Nanomaterials", Eds. S. K. Nayak, S. Kalia and S. Mohanty, Wiley-Scrivener Publishing, USA, 2015, p. 139 - 193.