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Indian Institute of Science Education and Research |
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S. G. Srivatsan, Ph. D. Professor, Department of Chemistry Wellcome Trust/DBT India Senior Fellow IISER, Pune E-mail: srivatsan@iiserpune.ac.in Phone: +91 (20) 25908086
Education
Ph. D. May 2003 Department of Chemistry, Indian Institute of Technology, Kanpur, India Research advisor: Prof. Sandeep Verma
M. Sc. May 1997 Department of Chemistry, Indian Institute of Technology, Madras, India
B. Sc. May 1995 Loyola College, Madras, India
Research Experience
Nov 2005−Sept 2008 Postdoctoral fellow: University of California, San Diego, USA Research advisor: Prof. Yitzhak Tor
July 2003−Aug 2005 Alexander von Humboldt Research Fellow, University of Bonn, Germany Research advisor: Prof. Dr. Michael Famulok
July 1998−May 2003 Graduate research fellow, Indian Institute of Technology, Kanpur, India Research advisor: Prof. Sandeep Verma
Awards and Fellowships 1. Alexander von Humboldt Renewed Research Fellowship, University of Konstanz, Germany, May-July 31, 2023 (sponsored by Humboldt foundation) 2. Sun Pharma Research Award 2020 in the Pharmaceutical Sciences 3. National Prize for Research on Chemistry of Peptides and Nucleic Acids 2020 (Sponsored by CNR Rao Education Foundation) 4. Chemical Research Society of India (CRSI) Bronze medal for 2020 5. CDRI AWARDS–2019 for Excellence in Drug Research in Chemical Sciences 6. Alexander von Humboldt Renewed Research Stay, University of Konstanz, Germany, May-August, 2019 (sponsored by Humboldt foundation) 7. Editorial Advisory Board member of ACS Bioconjugate Chemistry from 2019 8. Wellcome Trust/DBT India Senior Fellowship 2016-2021 9. Alexander von Humboldt Renewed Research Stay, University of Bonn, Germany, May-August, 2016 (sponsored by Humboldt foundation) 10. Recognized as an emerging young scientist in India at the Chemical Frontiers Conference 2014 Award was given by Bharat Ratna, Professor C. N. R. Rao 11. RSC West India Section: Early Career Scientist award 2012 12. IUPAC Prize for Young Chemists, 2004: Prize given for the most outstanding Ph.D. thesis in the area of the Chemical Sciences 13. Alexander von Humboldt Fellowship, Germany, 2003−2005 14. Senior Research Fellowship, Council of Scientific and Industrial Research, India, 2001−2003
List of Publications 1. Roy, S.; Majee, P.; Sudhakar, S.; Mishra, S.; Kalia, J.; Pradeepkumar, P.I.;* Srivatsan, S. G.* Structural elucidation of HIV-1 G-quadruplexes in a cellular environment and their ligand binding using responsive 19F-labeled nucleoside probes. Chem. Sci. 2024, DOI:10.1039/d4sc01755b. 2. Khatik, S. Y.; Roy, S.; Srivatsan, S. G.* Synthesis and enzymatic incorporation of a dual-app nucleotide probe that reports antibiotics-induced conformational change in the bacterial ribosomal decoding site RNA. ACS Chem. Biol. 2024, 19, 687-695. 3. Pandey, A.; Roy, S.; Srivatsan, S. G.* Probing the competition between duplex, G-quadruplex and i-motif structures of the oncogenic c-Myc DNA promoter region. Chem. Asian J. 2023, e202300510. 4. Khatik, S. Y.; Sudhakar, S.; Mishra, S.; Kalia, J.; Pradeepkumar, P.I.; Srivatsan, S. G.* Probing juxtaposed G-quadruplex and hairpin motifs using a responsive nucleoside probe: a unique scaffold for chemotherapy. Chem. Sci. 2023, 14, 5627-5637. 5. Khatik, S. Y.; Srivatsan, S. G.* Environment-sensitive nucleoside probe unravels the complex structural dynamics of i-motif DNAs. Bioconjugate Chem. 2022, 33, 1515-1526. 6. Ghosh, P.; Kropp, H. M.; Betz, K.; Ludmann, S.; Diederichs, K.; Marx, A.;* Srivatsan, S. G.* Microenvironment-Sensitive Fluorescent Nucleotide Probes from Benzofuran, Benzothiophene, and Selenophene as Substrates for DNA Polymerases. J. Am. Chem. Soc. 2022, 144, 10556-10569. 7. Walunj, M. B.; Srivatsan, S. G.* Heterocycle-modified 2′-deoxyguanosine nucleolipid analogs stabilize guanosine gels and self-assemble to form green fluorescent gels. Chemistry - An Asian Journal 2021, 17, e202101163. 8. Manna, S.; Sontakke, V. A.; Srivatsan, S. G.* Incorporation and utility of a responsive ribonucleoside analogue in probing the conformation of a viral RNA motif by fluorescence and 19F NMR spectroscopy. ChemBioChem 2021, 23, e202100601. 9. Walunj, M. B.; Dutta, S.; Srivatsan, S. G.* Architectures of nucleolipid assemblies and their applications in Molecular architectonics and Nanoarchitectonics. Springer Nature, 2021, 307-334. 10. Walunj, M. B.; Srivatsan, S. G.* Nucleic acid conformation influences postsynthetic Suzuki–Miyaura labeling of oligonucleotides. Bioconjugate Chem. 2020, 31, 2513-2521. 11. George, J. T.; Srivatsan, S. G.* Bioorthogonal chemistry-based RNA labeling technologies: evolution and current state. Chem. Commun. 2020, 56, 12307-12318. 12. George, J. T.; Srivatsan, S. G.* Responsive fluorescent nucleotides serve as efficient substrates to probe terminal uridylyl transferase. Chem. Commun. 2020, 56, 12307-12318. 13. George, J. T.; Mohd. Azhar; Aich, M.; Sinha, D.; Ambi, U. B.; Maiti, S.;* Chakraborty, D.;* Srivatsan, S. G.* Terminal uridylyl transferase mediated site-directed access to clickable chromatin employing CRISPR-dCas9. J. Am. Chem. Soc. 2020, 142, 13954-13965. 14. Sontakke, V. A.; Srivatsan, S. G.* Bioorganic & Medicinal Chemistry Letters, 2020, 30, 127345. 15. Nuthanakanti, A.; Srivatsan, S. G.* Multi-stimuli responsive heterotypic hydrogels based on nucleolipids show selective dye adsorption. Nanoscale Adv. 2020, doi: 10.1039/D0NA00509F. 16. Nuthanakanti, A.; Srivatsan, S. G.* Synthesis of DNA and RNA oligonucleotides containing a dual-purpose selenium-modified fluorescent nucleoside probe. Current Protocols in Nucleic Acid Chemistry, 2020, 81, e106. 17. Walunj, M. B.; Srivatsan, S. G.* Posttranscriptional Suzuki-Miyaura cross-coupling yields labeled RNA for conformational analysis and imaging. Methods in Molecular Biology, 2020, 2166, 473−486. 18. Manna, S.; Srivatsan, S. G.* Synthesis and enzymatic incorporation of a responsive ribonucleoside probe that enables quantitative detection of metallo-base pairs. Org. Lett. 2019, 21, 4646−4650. 19. Ashok, N.; Ishtiyaq, A.; Saddam, Y. K.; Kayarat, S.;* Srivatsan, S. G.* Probing G-quadruplex topologies and recognition concurrently in real time and 3D using a dual-app nucleoside probe. Nucl. Acid. Res. 2019, 47, 6059–6072. 20. Ashok, N.; Arun, T. A. T.; Badiger, M. V.; Srivatsan, S. G.* Self-assemblies of nucleolipid supramolecular synthons show unique self-sorting and cooperative assembling process. Nanoscale 2019, 11, 11956–11966. 21. Manna, S.; Sarkar, D.; Srivatsan, S. G.* A Dual-app nucleoside probe provides structural insights into the human telomeric overhang in live cells. J. Am. Chem. Soc. 2018, 140, 12622–12633. 22. Sabale, P. M.; Ambi, U. B.; Srivatsan, S. G.* Clickable PNA probes for imaging human telomeres and poly(A) RNAs. ACS Omega 2018, 3, 15343−15352. 23. Manna, S.; Srivatsan, S. G.* Fluorescence-based tools to probe G-quadruplexes in cell-free and cellular environments. RSC Adv. 2018, 8, 25673-25694. 24. Sabale, P. M.; Tanpure, A. A.; Srivatsan, S. G.* Probing the competition between duplex and G-quadruplex/i-motif structures using a conformation-sensitive fluorescent nucleoside probe. Org. Biomol. Chem. 2018, 16, 4141-4150. 25. Walunj, M. B.; Tanpure, A. A.; Srivatsan, S. G.* Posttranscriptional labeling by using Suzuki-Miyaura cross-coupling generates functional RNA probes. Nucl. Acid. Res. 2018, 46, e65. DOI: 10.1093/nar/gky185. 26. Sabale, P. M.; Ambi, U. B.; Srivatsan, S. G.* A Lucifer-based environment-sensitive fluorescent PNA probe for imaging poly(A) RNAs. ChemBioChem 2018, 19, 826-835 (cover page article). 27. Walunj, M. B.; Sabale, P. M.; Srivatsan, S. G.* Advances in the application of Pd-mediated transformations in nucleotides and oligonucleotides: a book chapter in Palladium-catalyzed modification of nucleosides, nucleotides and oligonucleotides. Elsevier Inc, 2018, 269-293. 28. Sawant, A. A.; Galande, S.; Srivatsan, S. G.* Imaging newly transcribed RNA in cells by using a clickable azide-modified UTP analog. Methods in Molecular Biology 2018, 1649, 359-371. 29. Nuthanakanti, A.; Srivatsan, S. G.* Surface-tuned and metal-ion-responsive supramolecular gels based on nucleolipids. ACS Appl. Mater. Interfaces 2017, 9, 22864-22874. 30. Manna, S.; Panse, C. H.; Sontakke, V. A.; Sangamesh, S.; Srivatsan, S. G.* Probing human telomeric DNA and RNA topology and ligand binding in a cellular model by using responsive fluorescent nucleoside probes. ChemBioChem 2017, 18, 1604-1615. 31. George, J. T.; Srivatsan, S. G.* Vinyluridine as a Versatile Chemoselective Handle for the Posttranscriptional Chemical Functionalization of RNA. Bioconjugate Chem. 2017, 28, 1529-1536. 32. Nuthanakanti, A.; Boerneke, M. A.; Hermann, T.;* Srivatsan S. G.* Structure of the ribosomal decoding site RNA containing a Se-modified responsive fluorescent ribonucleoside probe. Angew. Chem. Int. Ed. 2017, 56, 2640-2644. 33. George, J. T.; Srivatsan, S. G.* Posttranscriptional chemical labeling of RNA by using bioorthogonal chemistry. Methods 2017, DOI: 10.1016/j.ymeth.2017.02.004. 34. Sabale, P. M.; Srivatsan, S. G.* Responsive fluorescent PNA analog as a tool for detecting G-quadruplex motifs of oncogenes and activity of toxic ribosome inactivating proteins. ChemBioChem 2016, 17, 1665-1673. 35. Sawant, A. A.; Mukherjee, P. P.; Jangid, R. K.; Galande, S.; Srivatsan, S. G.* Clickable UTP analog for the posttranscriptional chemical labeling and imaging of RNA. Org. Biomol. Chem., 2016, 14, 5832-5842. 36. Nuthanakanti, A.; Srivatsan, S. G.* Hierarchical self-assembly of switchable nucleolipid supramolecular gels based on environment-sensitive fluorescent nucleoside analogs, Nanoscale 2016, 8, 3607-3619. 37. Sawant, A. A.; Tanpure, A. A.; Mukherjee, P. P.; Athavale, S.; Kelkar, A.; Galande, S.*; Srivatsan, S. G.* A versatile toolbox for posttranscriptional chemical labeling and imaging of RNA. Nucl. Acid. Res. 2016, 44, e16. 38. Tanpure, A. A.; Srivatsan, S. G.* Conformation-sensitive nucleoside analogues as topology-specific fluorescence turn-on probes for DNA and RNA G-quadruplexes. Nucl. Acid. Res. 2015, 43, e149. 39. Sabale, P. M.; George, J. T.; Srivatsan, S. G.* Base-modified PNA-graphene oxide platform as a turn-On fluorescence sensor for the detection of human telomeric repeats. Nanoscale 2014, 6, 10460-10469. 40. Tanpure, A. A.; Srivatsan, S. G.* Synthesis, photophysical properties and incorporation of a highly emissive and environment-sensitive uridine analogue based on the lucifer chromophore. ChemBioChem 2014, 15, 1309-1316. 41. Pawar, M. G.; Srivatsan, S. G.* Environment-responsive fluorescent nucleoside analogue probe for studying oligonucleotide dynamics in a model cell-like compartment. J. Phys. Chem. B 2013, 117, 14273-14282. 42. Pawar, M. G.; Nuthanakanti, A.; Srivatsan, S. G.* Heavy atom containing fluorescent ribonucleoside analog probe for the fluorescence detection of RNA-ligand binding. Bioconjugate Chem. 2013, 24, 1367-1377. 43. Peters, J. P.; Yelgaonkar, S. P.; Srivatsan, S. G.; Tor, Y.; Maher III, L. J. Mechanical properties of DNA-like polymers. Nucl. Acid. Res. 2013, 41, 10593-10604. 44. Tanpure, A. A.; Pawar, M. G.; Srivatsan, S. G.* Fluorescent Nucleoside Analogs: Probes for Investigating Nucleic Acid Structure and Function. Isr. J. Chem. 2013, 53, 366-378. 45. Sabale, P. M.; Nuthanakanti, A.; Srivatsan, S. G.* Synthesis and fluorescence properties of a full set of extended RNA base analogues. Ind. J. Chem. 2013, 52A, 1004-1013. 46. Tanpure, A. A.; Srivatsan, S. G.* Synthesis and photophysical characterization of a fluorescent nucleoside analogue that signals the presence of an abasic site in RNA. ChemBioChem 2012, 13, 2392-2399. 47. Rao, H.; Tanpure A. A.; Sawant, A. A.; Srivatsan, S. G.* Enzymatic incorporation of an azide-modified UTP analog into oligoribonucleotides for post-transcriptional chemical functionalization. Nature Protocols 2012, 7, 1097-1112. 48. Tanpure, A. A.; Patheja, P.; Srivatsan, S. G.* Label-free fluorescence detection of the depurination activity of ribosome inactivating protein toxins. Chem. Commun., 2012, 48, 501-503. Selected as a Hot Article for ChemComm. 49. Rao, H.; Sawant, A. A.; Tanpure A. A.; Srivatsan, S. G.* Posttranscriptional chemical functionalization of azide-modified oligoribonucleotides by bioorthogonal click and Staudinger reactions, Chem. Commun., 2012, 48, 498-500. Selected as a Hot Article for ChemComm and cover page article. Faculty of 1000 (F1000) places this article in their library of the top 2% of published articles in biology and medicine. 50. Tanpure, A. A.; Srivatsan, S. G.* A Microenvironment-sensitive fluorescent pyrimidine ribonucleoside analogue: Synthesis, enzymatic incorporation, and fluorescence detection of a DNA abasic site. Chem. Eur. J., 2011, 17, 12820-12827. 51. Pawar, M. G.; Srivatsan, S. G.* Synthesis, photophysical characterization, and enzymatic incorporation of a microenvironment-sensitive fluorescent uridine analog. Org. Lett., 2011, 13, 1114-1117. 52. Srivatsan, S. G.*; Sawant, A. A. Fluorescent ribonucleoside analogues as probes for investigating RNA structure and function. Pure Appl. Chem., 2011, 1, 213-232. 53. Srivatsan, S. G.; Tor, Y. Enzymatic Incorporation of Emissive Pyrimidine Ribonucleotides. Chemistry Asian J., 2009, 4, 419-427. 54. Srivatsan, S. G.; Greco, N. J.; Tor, Y. Highly emissive fluorescent nucleoside signals the activity of toxic ribosome inactivating proteins. Angew. Chem., 2008, 47, 6661-6665. 55. Fusz, S.; Srivatsan, S. G.; Ackermann, D.; Famulok M. Photocleavable initiator nucleotide substrates for an aldolase ribozyme. J. Org. Chem., 2008, 73, 5069-5077. 56. Srivatsan, S. G.; Weizman, H.; Tor, Y. Highly fluorescent nucleoside analog based on thieno[3,4-d]pyrimidine positively senses mismatched pairing. Org. Biomol. Chem., 2008, 6, 1334-1338. 57. Srivatsan, S. G.; Tor, Y. Synthesis and enzymatic incorporation of a fluorescent pyrimidine ribonucleotide. Nature Protocols 2007, 2, 1547-1555. 58. Srivatsan, S. G.; Tor, Y. Fluorescent pyrimidine ribonucleotide: synthesis, enzymatic incorporation and utilization. J. Am. Chem. Soc., 2007, 129, 2044-2053. 59. Srivatsan, S. G.; Tor, Y. Using an emissive uridine analogue for assembling fluorescent HIV-1 TAR constructs. Tetrahedron 2007, 63, 3601-3607. 60. Tor, Y.; Valle, S. D.; Jaramillo, D.; Srivatsan, S. G.; Rios, A.; Weizman, H. Designing new isomorphic fluorescent nucleobase analogues: the thieno[3,2-d]pyrimidine core. Tetrahedron 2007, 63, 3608-3614. 61. Hafner, M.; Schmitz, A.; Grune, I.; Srivatsan, S. G.; Paul, B.; Kolanus, W.; Quast, T.; Kremmer, E.; Bauer, I.; Famulok, M. Inhibition of cytohesins by SecinH3 leads to hepatic insulin resistance. Nature 2006, 444, 941-944. 62. Fusz, S.; Eisenfuhr, A.; Srivatsan, S. G.; Heckel, A.; Famulok, M. A ribozyme for the aldol reaction. Chemistry and Biology 2005, 12, 941-950. 63. Srivatsan, S. G.; Famulok, M. Functional nucleic acids in high-throughput screening and drug discovery. Combinatorial Chemistry & High Throughput Screening 2007, 10, 698-705. 64. Chandrasekhar, V.; Deria, P.; Krishnan, V.; Athimoolam, A.; Singh, S.; Madhavaiah, C.; Srivatsan, S. G.; Verma, S. Metalated hybrid polymers as catalytic reagents for phosphate ester hydrolysis and plasmid modification. Bioorg. Med. Chem. Lett., 2004, 14, 1559-1562. 65. Saxena, A.; Srivatsan, S. G.; Saxena, V.; Verma, S. Bioinspired modification of polystyryl matrix: single-step chemical evolution to a moderately conducting polymer. Chem. Lett., 2004, 33, 740-741. 66. Srivatsan, S. G.; Parvez, M.; Verma, S. Adenine-copper coordination polymer as an oxidative nucleozyme: Implications for simple prebiotic catalytic units. J. Inorg. Biochem., 2003, 97, 340-344. 67. Mukhopadhyay, R.; Srivatsan, S. G.; Verma, S. Surface trapping and AFM detection of DNA topological intermediates generated from an oxidative chemical nuclease. Biochem. Biophy. Res. Commun., 2003, 308, 165-169. 68. Verma, S.; Srivatsan, S. G.; Claussen, C. A.; Long, E. C. DNA strand scission by a Cu(I)-adenylated polymeric template: preliminary mechanistic and recycling studies. Bioorg. Med. Chem. Lett., 2003, 13, 2501-2504. 69. Madhavaiah, C.; Srivatsan, S. G.; Verma, S. Heterogeneously active nucleolytic reagents: flexible design of reusable catalysts for nucleic acid scission. Catal. Commun., 2003, 4, 237-241. 70. Madhavaiah, C.; Srivatsan, S. G.; Verma, S. Kinetic and mechanistic investigations of phosphodiester cleavage catalyzed by uranyl ion impregnated adenylated homopolymer. Catal. Commun., 2002, 3, 299-303. 71. Chandrasekhar, V.; Athimoolam, A.; Srivatsan, S. G.; Sundaram, P. S.; Verma, S.; Steiner, A.; Zacchini, S. Pyrazolylcyclotriphosphazene containing pendant polymers: Synthesis, characterization and phosphate ester hydrolysis using a Cu(II) metalated cross-linked polymeric catalyst. Inorg. Chem., 2002, 41, 5162-5173. 72. Srivatsan, S. G.; Parvez, M.; Verma, S. Modeling prebiotic catalysis with adenylated polymeric templates: crystal structure studies and kinetic characterization of template-assisted phosphate ester hydrolysis. Chem. Eur. J., 2002, 8, 5184-5191. 73. Srivatsan, S. G.; Verma, S.; Parvez, M. 4-vinylbezyl analogs of adenine and uracil: reactive monomers for nucleobase polymeric resins. Acta Cryst., 2002, C58, o378-o380. 74. Srivatsan, S. G.; Kingsley, S.; Verma, S. Self-assembly of 9-allyladenine hydrochloride in crystalline state: formation of infinitely stacked molecular sheets using multiple hydrogen bonds. Chem. Lett., 2002, 240-241. 75. Madhavaiah, C.; Srivatsan, S. G.; Verma, S. Ruthenium-metallated adenine nucleobase polymers as novel reagents for catalytic cleavage of phosphate esters. Catal. Commun., 2001, 2, 95-99. 76. Srivatsan, S. G.; Verma, S. Nucleobase containing metallated polymeric resins as artificial phosphodiesterases: Kinetics of hydrolysis, pH dependence and catalyst recycling. Chem. Eur. J., 2001, 7, 828-833. 77. Srivatsan, S. G.; Nigam, P.; Rao, M. S.; Verma, S. Phenol oxidation by copper metallated 9-allyladenine-DVB polymer: Reaction catalysis and polymer recycling. Appl. Catal. A: General 2001, 209, 327-334. 78. Srivatsan, S.G.; Verma, S. Synthetic dephosphorylation reagents: rate enhancement of phosphate monoester hydrolysis by Cu (II)-metallated adenine nucleobase polymers. Chem. Commun., 2000, 515-516. 79. Srivatsan, S. G.* Modeling prebiotic catalysis with nucleic acid-like polymers and its implications for the proposed RNA world. Pure Appl. Chem., 2004, 76, 2085-2099. 80. Verma, S.; Srivatsan, S. G.; Madhavaiah, C. Copper containing nuclease mimics: synthetic models and biochemical applications: Artificial Nucleases 232 (Nucleic Acids and Molecular Biology Series), Ed. Zenkova, M. A., Springer-Verlag, Heidelberg, 2004, 13, 129-150.
Selected conferences attended as an independent researcher (IISER, Pune) 1. Co-chair and presenter, 8th Indo-German Frontiers of Engineering Symposium (INDOGFOE), May 19-22, 2016, Potsdam, Berlin, Germany. 2. Organizing Committee Member, Humboldt Kolleg on Sustainable Development: Mega Trends of the 21st Century, November 19-21, 2015, Goa, India. 3. Organizing Committee Member, 7th Indo-German Frontiers of Engineering Symposium (INDOGFOE), February 19-22, 2015, Agra, India. 4. Functionalized Nucleoside Toolbox for Labeling and Imaging RNA, Indo-German Conference on Bioinspired Chemistry, September 10-12, 2014, IISC, Bangalore, India (Invited Speaker). 5. Functionalized Nucleoside Probes for Studying Nucleic Acid Structure and Function, Chemical Frontiers-2014, August 16-19, 2014, Goa, India (Invited Speaker). 6. Heavy Atom Containing Fluorescent Nucleoside Analog Probe for the Fluorescence Detection of Nucleic Acid-Ligand Binding and X-ray Crystallography, 248th ACS National Meeting & Exposition, August 10-14, 2014, San Francisco, California, USA (Speaker). 7. Fluorescence Imaging of Cellular RNA Transcripts by Using Bioorthogonal Chemical Reactions, Fluorescent Biomolecules and their Building Blocks-Design and Applications (FB3), August 6-9, 2014, University of California, San Diego, USA (Speaker). 8. Posttranscriptional Chemical Functionalization of RNA by Bioorthogonal Reactions, Feb. 6-8, 2014, International Conference on Chemical Biology, Hyderabad (Invited Speaker). 9. The Science and Art of Sustainability, Workshop by DAAD-Humboldt, Pune Chapter, Sept. 6-7, 2013, NCL, Pune (Invited Speaker). 10. Functionalized Nucleoside Analogues: Synthesis, Incorporation and Applications, Feb. 8-10, 2013, Chennai Chemistry Conference, Chennai (Invited Speaker). 11. Synthesis, Incorporation and Applications of Functionalized Nucleoside Analogues, Oct. 10-13, 2012, XV NOST Organic Chemistry Conference (NOST-OCC), Agra (Invited Speaker). 12. Functionalized nucleoside analogues: synthesis, incorporation and applications, RSC West India IYC-Challenge Symposium-2012, August 31 and September 1, 2012, Nagpur, India (Invited Speaker). 13. Environment sensitive fluorescent ribonucleoside analogues: synthesis, incorporation and photophysical characterization, Fluorescent Biomolecules and their Building Blocks-Design and Applications (FB3), July 5-8, 2012, Gothenburg, Sweden (Speaker). 14. Synthesis, Incorporation and Applications of Functionalized Ribonucleoside: Mini Symposium on Chemical Biology, November 14, 2011, IISER, Pune, India (Invited Speaker). 15. Synthesis, Incorporation and Applications of Functionalized Ribonucleoside Analogues, Alexander von Humboldt (AvH) Foundation Kolleg, Science Globalization and Human development, November 11-13, 2011, Goa, India (Invited Speaker). 16. Synthesis and Applications of Functionalized Nucleoside Analogues, Bioinspired Chemistry, IISER Pune/Gottingen Cooperation, December 9-12, 2010, University of Gottingen, Germany (Invited Speaker). 17. Environment Sensitive Fluorescent Ribonucleoside Analogues: Synthesis and Enzymatic Incorporation, Frontiers in Chemical Sciences, December 3-4, 2010, IIT-Guwahati, India (Invited Speaker). 18. Microenvironment Sensitive Fluorescent Ribonucleoside Analogues: Synthesis and Enzymatic Incorporation, RSC West India Ph. D. Student Symposium, September 3-4, 2010, Goa University, Goa, India (Invited Speaker).
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