1. Synthesis and Characterization of Cu(II) and Ni(II) complexes with Heteroditopic Cryptands: Crystal Structure of a Strongly Bonded Cu(II)OH2 Inclusion Complex. G.Das, D.K.Chand, P.K.Bharadwaj. Symposium on Modern Trends in Inorganic Chemistry, December 4-6, 1997. Department of Chemistry, Indian Institute of Technology, Kanpur, India.
2. Fluorescent Signalling with Transition and Inner-Transition Metal Ions. P.Ghosh, G.Das, P.K.Bharadwaj. Symposium on Frontiers in Inorganic Chemistry. Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, India.
3. En Route to Intra-Toroidal Catalysis B.Baumeister, N.Sakai, G.Das, S. Matile National Research Program "Supramolecular Functional Materials", Kick-off Meeting, 30.06.2000, Berne, Switzerland.
4. Hierarchical Self-Organization of Rigid-Rod Molecules: From Tertiary beta-Barrel to Quartenary beta-Fibril Structures G.Das, L.Quali, B.Baumeister, K.J.Wilkinson, S. Matile. Swiss Chemical Society Fall Meeting 2001, 12.10.2001, Zurich, Switzerland.
5. A Barrel-Stave Supramolecule with Ion Channel, Hydrolase, and Fibrillogenic Activity B.Baumeister, G.Das, N.Sakai, A. Som, D.Gerard, S. Matile. National Research Program "Supramolecular Functional Materials" 23.10.2001, Berne, Switzerland.
6. Green Synthesis of 3D-Polymeric Metallo-Organic Framework of Zn(II) Metallocycles with 1D "Zig-Zag" Water Chain Harjyoti Thakuria, Ballav Moni Borah, G.Das. Modern Trends in Inorganic Chemistry (MTIC-XI) December 8-10, 2005, IIT Delhi, India.
7. A One-pot Synthesis and Self-assembled Superstructure of Organic salts of a 1,5-benzodiazepine derivative. Harjyoti Thakuria, Avijit Pramanik, Ballav Moni Borah, G.Das. 2nd Mid Year Symposium of CRSI, 21st July 2007, IIT Guwahati, India.
8. Spectroscopic and Structural Studies of Supramolecular Host-Guest System. Avijit Pramanik, G.Das. Modern Trends in Inorganic Chemistry (MTIC-XII) December 6-8, 2007, IIT Madras, India.
9. Lactic Acid Bacterial Extract as a Biogenic Mineral Growth Modifier. Ballav Moni Borah, Atul K. Singh, Aiyagari Ramesh, G.Das. CRSI National Symposium in Chemistry (NSC-10), February 1-3, 2008, IISc Bangalore, India.
10. Studies of 2-alkyl Substituted Benzimidazole Amphiphiles. Bimlesh Ojha, G.Das. CRSI National Symposium in Chemistry (NSC-11), February 6-8, 2009, NCL Pune, India.
11. Conformation Polymorphism and Anion Binding of Varying Dimensionality by an Electron Deficient Tripodal Podand. S. Dey, G.Das. Modern Trends in Inorganic Chemistry (MTIC-XIII) December 7-10, 2009,IISc Bangalore, India.
12. Role of Hydrophobic and Polar Interactions for BSA-amphiphiles conjugates. Bimlesh Ojha, G.Das. International Conference on Physics Biology Interface, December 13-16, 2009, Saha Institute of Nuclear Physics, Kolkata, India.
13. Oxidative Cyclization of Thiosemicarbazone: An Optical and Turn-on Fluorescent Chemodosimeter for Cu+2 Arghya Basu, Sandeep Kr Dey, G.Das International Symposium on Frontiers in Inorganic Chemistry (FIC-2010), December 11-13, 2010, Indian Association for the Cultivation of Science (IACS), Kolkata, India.
14. 2-Alkylmalonic Acid: Amphiphilic Chelator and A Potent Inhibitor of Metalloenzyme. Bimlesh Ojha, G.Das. Frontiers in Chemical Sciences (FICS-2010), December 3-4, 2010, Indian Institute of Technology Guwahati, Assam, India.
15. Nanofilter for wastewater:selective and reversal adsorption of metal ions on a new-bio-nanocomposite. B. Saha, S. Chakraborty, G. Das Frontiers in Chemical Sciences (FICS-2010), December 3-4, 2010, Indian Institute of Technology Guwahati, Assam, India.
16. Efficient removal of chromate and arsenate from individual and mixed system by malachite nanoparticles. J. Saikia, B. Saha, G. Das. Frontiers in Chemical Sciences (FICS-2010), December 3-4, 2010, Indian Institute of Technology Guwahati, Assam, India.
17. Studies on the antimicrobial activity of synthetic amphiphiles. U. Vudumula, B. Ojha, M. D. Adhikari, G. Das, A. Ramesh 51st Annual Conference of Association of Microbiologists of India (AMI), Ranchi, 14-17 December 2010.
18. Controlled synthesis of framboidal stable vaterite using a salicyclic acidaniline dye as an additive. J. Saikia, G. Das. Hybrid Materials 2011, Second International Conference on Multifunctional, Hybrid and Nanomaterials, 6-10 March 2011, Strasbourg, France.
19. Controlled synthesis of framboidal stable vaterite using a salicyclic acidaniline dye as an additive. J. Saikia, G. Das. Hybrid Materials 2011, Second International Conference on Multifunctional, Hybrid and Nanomaterials, 6-10 March 2011, Strasbourg, France.
20. Anion encapsulated neutral tripodal receptor capsules (BEST POSTER AWARD) Sandeep Kr Dey, G.Das 3rd Asian Conference on Coordination Chemistry held on October 17-20, 2011, New Delhi, India.
21. Structural modulation of synthetic amphiphiles for enhanced bactericidal efficacy. S. Goswami, M D. Adhikari, C. Kar, G. Das, A. Ramesh. 52nd Annual Conference of Association of Microbiologists of India (AMI), 03-06 November 2011, Chandigarh.
22. Membrane-targeting bactericidal activity of a Janus amphiphile. D. Thiyagarajan, M D. Adhikari, S. Goswami, C. Kar, G. Das, A. Ramesh. 53rd Annual Conference of Association of Microbiologists of India (AMI), 22-25 November 2012, Bhubaneswar.
23. Potential therapeutic applications of a membrane-acting bactericidal amphiphile. U. S. Pallavi, S. Goswami, M D. Adhikari, G. Das, A. Ramesh. Abstract PD2-510 (MVM). 53rd Annual Conference of Association of Microbiologists of India (AMI), 22-25 November 2012, Bhubaneswar. (BEST POSTER AWARD).
24. An Efficient Oxyanion-Receptor: Fixation of Atmospheric CO2 as a Trapped Carbonate Anion. R. Chutia, S. K. Dey, G. Das. Frontiers in Chemical Sciences (FICS) - 2012, 2-3 December 2012, IIT Guwahati.
25. Hybrid Halide-Water Cluster {[X3(H2O)4]3-, X = Cl-, Br-} Consisting Cyclic Pentameric Unit Having Puckered Conformation in Hydrophobic Architecture. Md. N. Hoque, A. Basu, G. Das, New Directions in Chemical Sciences, 7-9 December 2012, IIT Delhi, New Delhi.
26. Di-imine Based Fluorophoric Ligand for Selective Detection of Cu2+ and Zn2+ Metal ions and Their Application in Biological Studies C. Kar, B. K. Datta, A. Ramesh and G. Das "Modern Trends in Inorganic Chemistry" (MTIC-XV), December 13-16, 2013, IIT Roorkee, India.
27. Anti-biofilm activity of a bactericidal amphiphile. D. Thiyagarajan, S. Goswami, C. Kar, G. Das, A. Ramesh 54th Annual Conference of Association of Microbiologists of India (AMI), Rohtak, 17-20 November 2013.
28. NIR Sensing of Zn(II) and Subsequent Dihydrogen Phosphate Detection by a Benzothiazole Functionalized Ninhydrin Based Receptor A. Gogoi and G. Das Frontiers in Chemical Sciences (FICS-2014), December 4-6, 2014, Indian Institute of Technology Guwahati, Assam, India.
29. Isomeric pyridine-urea and its anionic-hydrates: Effect of pyridine N-atom towards the formation of various anion-water clusters. N. Hoque, A. Basu and G. Das Frontiers in Chemical Sciences (FICS-2014), December 4-6, 2014, Indian Institute of Technology Guwahati, Assam, India.
30. An Aggregation-Induced Emission (AIE) Active Probe for fluorometric sensing of Al(III) and colorimetric sensing of Cu(II) S. Samanta, S. Goswami, Md. N. Hoque, A. Ramesh and G. Das, Frontiers in Chemical Sciences (FICS-2014), December 4-6, 2014, Indian Institute of Technology Guwahati, Assam, India.
31. Excellent Anion Recognition by Nitrophenyl Functionalized Tripodal Urea Receptors: From Dimeric Anion Encapsulation to Discrete Tetrameric Tetrahedral Cluster Engulfment R. Chutia and G. Das Frontiers in Chemical Sciences (FICS-2014), December 4-6, 2014, Indian Institute of Technology Guwahati, Assam, India.
32. Hydrogen and Halogen Bonding in A Concert Act of Anion Recognition: F- Induced Atmospheric CO2 Uptake by an Iodophenyl Functionalized Simple Urea Receptor R. Chutia and G. Das International Conference on Structural Chemistry of Molecules and Materials (SCOMM-2014), 30th November - 2nd December 2014, Center for Research in Nanoscience and Nanotechnology (CRNN), University of Calcutta. India.
33.Green method for selective extraction of catechins from green tea leaves-adsorption by nano-ironoxide S. Chanda, M. K. Purkait and G. Das INDO-US Workshop on Nano-engineering in Medicine, AIIMS, New Delhi, Dec 17-19, 2014.
34. One pot in-situ synthesis of iron oxide nanoparticles-activated carbon-composites for removal of methylene blue from waste water S. Chanda, M. K. Purkait and G. Das New Horizons and Advancements in the field of nanotechnology (NanoSci-2014), IASST, Guwahati, Dec- 22 & 23, 2014.
35. Removal of cationic dyes by activated carbon prepared from kans grass S. Chanda, A. Meena and G. Das National Conference on Challenges in Environmental Health, June 04-06, 2015, IIT Guwahati, India.
36. Pharmaceutical grade Activated Carbon (3rd Prize in research scholar category) S. Chanda, G. Das and M. K. Purkait Research Wave Competition, October 11, 2015, IIT Guwahati, India.
37. Potential of pharmaceutical grade activated charcoal/ carbon from waste biomass as an activate ingredient in health and beauty products. S. Chanda, G. Das and M. K. Purkait Assam Biotech Conclave- 2015, Guwahati, November 20-21, 2015.
38.Green one pot in-situ preparation and characterization of iron oxide nanoparticle-activated carbon nanocomposites for selective removal of cationic textile industry dye. S. Chanda, G. Das and M. K. Purkait 4th International Conference on advanced nanomaterials and Nanotechnology, December 08-11, 2015, IIT Guwahati, India.
39. Selective removal of anionic dye by carbon coated meta-kaolin prepared by CVD. S. Chanda, G. Das and M. K. Purkait CHEMCON 2015 as "Chemical Engineering: From Laboratory to Industry" December 27-30, 2015, IIT Guwahati, India.
40. Di-imine based chromogenic and fluorophoric probes for the detection of different ions and their application in biological studies B. K. Dutta and G. Das "Modern Trends in Inorganic Chemistry" (MTIC-XVi) December 3-5, 2015, Jadavpur University, Kolkata, India.
41. An AIE Active Platform for Highly Efficient Sensing of PPi Anion in HeLa Cells Rupinder Singh, Abhijit Gogoi and Gopal Das UGC-SAP National Seminar ‘’Emerging Trends in Chemical Sciences-2015’’, November 5-6, 2015, Gauhati University, Guwahati, Assam, India.
42. Revelling 3D-Structured Activated Carbon Particle by Electron Microscopy. (BEST POSTER) S. Chanda, G. Das and M. K. Purkait National Workshop on Advanced Probing Techniques in TEM, February, 15-16, 2016, IIT Guwahati, India.
43. Immobilized sulfate reducing bacteria for heavy metal removal from wastewater M Gopi kiran, K. Pakshirajan and G. Das "Recycle 2016: International Conference on Waste Management" April 1-2, 2016, IIT Guwahati, India.
44. Waste water as feedstock for production of biodegradable plastic Jayakrishnan U, D. Deka and G. Das "Recycle 2016: International Conference on Waste Management" April 1-2, 2016, IIT Guwahati, India.
45. Magnetically Responsive Carbon Based Adsorbent for Removal of Congo Red. S. Chanda, G. Das and M. K. Purkait "Recycle 2016: International Conference on Waste Management" April 1-2, 2016, IIT Guwahati, India.
46. Discrimination of Geometrical Isomers (Maleic vs. Fumaric Acid): Real-time Optical Detection of Maleic Acid in Solution and Food Additives. S. Samanta and G. Das Frontiers in Chemical Sciences (FICS-2016), December 8-10, 2016, IIT Guwahati, India.
47. Competitive Anion Binding Aptitude between Benzimidazole and Amide Functionality: A Case Study of a Non-symmetrical Receptor Nilotpal Borah, A. Gogoi and G. Das Frontiers in Chemical Sciences (FICS-2016), December 8-10, 2016, IIT Guwahati, India.
48. Cyclic Fluoride-Water Tetramer and Sulfate-Water-Sulfate Hydrated-anion Cluster Entrapment within the Self-Assembly of Neutral Positional Isomeric Receptors U. Manna and G. Das Frontiers in Chemical Sciences (FICS-2016), December 8-10, 2016, Indian Institute of Technology Guwahati, Assam, India.
49. A Turn-On Solo Fluorogenic Probe for Real-time Differential Sensing of SO32–and SO42–/ HSO4– in Aqueous Medium and Live Cells. S. Samanta, P. Dey, A. Ramesh and G. Das 20th CRSI National Symposium in Chemistry (CRSI-2017), February 2-5, 2017, Gauhati University, Guwahati, Assam, India.
50. Entrapment of Cyclic Fluoride-Water and Sulfate-Water-Sulfate Cluster: Positional Isomeric Effect in Anion/Hydrated Anion Recognition of Neutral Bis-Urea Receptors U. Manna, S. Kayal and G. Das 20th CRSI National Symposium in Chemistry (CRSI-2017), February 2-5, 2017, Gauhati University, Guwahati, Assam, India.
51. An unprecedented dual guest encapsulated solvent-host-salt trimeric assembly: Meta-substituent driven anion binding of isomeric scaffolds U. Manna and G. Das Research Conclave’17: An Amalgamation of Academia, Industry & Start-ups, March 16-19, 2017, Indian Institute of Technology Guwahati, Assam, India.
52. A sole multi-analtye fluorogenic probe for specific recognition of Zn2+ and Cd2+ and subsequent detection of inorganic phosphates (Pi) R. Singh, A. Gogoi and G. Das 20th CRSI National Symposium in Chemistry (CRSI-2017), February 2-5, 2017, Gauhati University, Guwahati, Assam, India.
53. Consequence of Halide and Oxyanion Size on Capsular/non-capsular Assembly Formation of Positional Isomeric Tripodal Polyamine Receptors U. Manna, B. Nayak, Md. N. Hoque, and G. Das 20th CRSI National Symposium in Chemistry (CRSI-2017), February 2-5, 2017, Gauhati University, Guwahati, Assam, India.
1. DST sponsored National Workshop on the Art of the X-ray Crystallography held on March 31-April 1, 1995. Department of Chemistry, Indian Institute of Technology, Kanpur, India.
2. HPLC and EM users Workshop held on March 15, 1996. Central Drug Research Institute (CDRI), Lucknow, India.
3. Swiss National Chemical Society sponsored Workshop on the Supramolecular Functional Materials : Scientific Communication held on May 11, 2001. Berne, Switzerland.