EDUCATION
M.Sc., Ph.D., PDF(IISER-TVM), AMRSC(UK)

BIOGRAPHY
Dr. Praveen Sarojini Gopinathan is an experimental physicist and science enthusiast with over a decade of research and four years of teaching experience. He has an extensive interest in Condensed Matter Physics, Nanomaterials and devices, Spectroscopy, etc. He has achieved about 150 citations and has an h-index of 6 in a short span and filed one patent to his credit. Dr. Praveen is one of the few people in the world who got expertized and contributed significantly to the field of Nano-clusters. He has also explored various properties of Nano-clusters synthesized by different physical and chemical methods and developed various usable technologies. Dr. Praveen is an Associate Member of The Royal Society of Chemistry, UK, and also an Early Career Research Member of “OPTICA”, the Optical Society of America

EEPERIENCE
Assistant Professor (June 2020 to Present)
Department of Physics, St. John’s College, Anchal, Kollam, Kerala
Senior Research Associate: RA III (March 2018 to May 2020)
School of Physics, Indian Institute of Science Education and Research,
Thiruvananthapuram, Kerala
Institute Post-Doctoral Fellow (September 2015 to Feb 2018) 
School of Physics, Indian Institute of Science Education and Research,
Thiruvananthapuram, Kerala 
ADINISTRATIVE RESPONSIBILITIES AT ST JOHN’S COLLEGE ANCHAL 

1. Director, Research and Development Cell, (2023 to till date)
2. Coordinator, Website, (2023 to till date)
3. College Level Nodal Officer, PM-USHA Phase 3, (2023 to till date)
4. Coordinator, Add-on courses, (2023 to till date)
5. Convener, University help desk (2023 to till date)
6. Member, NIRF coordination committee, (2023 to till date)
7. Member, Centre for Gandhian Studies, (2023 to till date)
8. Member, Industry-linkage/Internship Committee (2023 to till date)
9. Member, Staff welfare committee (2023 to till date)
10.  Member, IQAC, (2021 to 2023) 

AWARDS/RECOGNITIONS

1. Research supervisor in Physics, Faculty of Science, The University of Kerala (Since August 2021)
2. Early Career Research Member, OPTICA (Optical Society of America-Since Jan 2018)
3. Associate Member Royal Society of Chemistry UK (Since November 2016)
4. Senior Research Associateship from ISRO-RESPOND at Indian Institute of Science Education and Research, Thiruvananthapuram (2018 - 2020) 
5.  Institute Postdoctoral Research Fellowship – Indian Institute of Science Education and Research, Thiruvananthapuram (2015 – 2018)
6.  Senior Research Fellowship–Department of Atomic Energy, BRNS, India (April 2014- June2015)
7.  Recipient of Best Poster award in Frontiers in Physics (FIP 2013) organized by University of Hyderabad, India. 
8. Junior Research Fellowship –Department of Atomic Energy, BRNS, India (2012 – 2014)
9.  Research Fellow- University Grants Commission, India (2010-2012
    

ADINISTRATIVE RESPONSIBILITIES AT ST JOHN’S COLLEGE ANCHAL

1. Director, Research and Development Cell, (2023 to till date)
2. Coordinator, Website, (2023 to till date)
3. College Level Nodal Officer, PM-USHA Phase 3, (2023 to till date)
4. Coordinator, Add-on courses, (2023 to till date)
5. Convener, University help desk (2023 to till date)
6. Member, NIRF coordination committee, (2023 to till date)
7. Member, Centre for Gandhian Studies, (2023 to till date)
8. Member, Industry-linkage/Internship Committee (2023 to till date)
9. Member, Staff welfare committee (2023 to till date)
10. Member, IQAC, (2021 to 2023)

AWARDS/RECOGNITIONS:

• Research supervisor in Physics, Faculty of Science, The University of Kerala (Since August 2021)
• Early Career Research Member, OPTICA (Optical Society of America-Since Jan 2018)
• Associate Member Royal Society of Chemistry UK (Since November 2016)
• Senior Research Associateship from ISRO-RESPOND at Indian Institute of Science Education and Research, Thiruvananthapuram (2018 - 2020)
• Institute Postdoctoral Research Fellowship – Indian Institute of Science Education and Research, Thiruvananthapuram (2015 – 2018)
• Senior Research Fellowship–Department of Atomic Energy, BRNS, India (April 2014- June2015)
• Recipient of Best Poster award in Frontiers in Physics (FIP 2013) organized by University of Hyderabad, India.
• Junior Research Fellowship –Department of Atomic Energy, BRNS, India (2012 – 2014)
• Research Fellow- University Grants Commission, India (2010-2012

CURRENT RESEARCH

• Synthesis of various nanocluster assembled materials of metals and alloys to study its electronic, magnetic, and optical properties and sorption kinetics. 
• Study of photoluminescence properties of various nanomaterials
• Surface acoustic wave (SAW) and resistance based hydrogen gas sensors with milliseconds response time using nanocluster assembled films
• Various hybrid nanocluster assembled structures for high gravimetric capacity hydrogen storage
• Design and development of various customized UHV deposition system, which are cheaper and versatile than commercial systems. 
• DFT simulation of materials for self-assembled monolayers , metal organic frameworks, organic molecules etc(IR, Raman, UV –VIS , NMR Spectra, Structural Simulations, potential energy mapping, NLO activity etc)
• The biological activities of pharmaceutical and toxic materials are under investigation using UV-VIS absorption data, and fluorometric assay, which reveals drug-DNA and drug-protein binding characteristics with the supported from FTIR, FT-RAMAN, and molecular simulations.

RESEARCH EXPERTISE

• Experience in Clean Room Experiments
• Nanocluster Deposition System (Nanodep 60. Oxford Applied Research UK)
• Designed and developed a customized nanocluster deposition system 70% cheaper and versatile than commercial couterpart
• E-beam evaporation techniques (Tectra, e-flux)
• Arc Melting, Melt spinning and mechanical alloying(Ball Milling)
• Experience in design and development of UHV systems
• Sputtering Techniques (RF and DC), Thermal evaporation, Spin Coating
• Experience on the usage of the glove box(MBRAUN), 
• FT-RAMAN(Horiba- LabRAM and Explora Plus), FTIR (Agilent Cary-630),
• UV-Visible Spectrometers, Photoluminescence spectrometer 
• X-Ray Diffraction techniques (Inel and Pan analytical)
• Atomic Force Microscopy(AFM) techniques
• FE-SEM(Field Emission Scanning Electron Microscope) and Energy dispersive spectroscopy (EDS)
• Semiconductor Device Analyzer(AgilentB1500A) 
• Cryogenic probe station(CRX 4K, Lake Shore Cryotronics)
• Hall Effect measurement System(Nano Magnetics)
• Development of highly reproducible SERS Substrates using metal nanoclusters 
• Preparation of Self-Assembled Monolayer (SAM) for device applications 
• Crystal growth by the slow evaporation method
• Familiarized with TEM, EPMA, DSC
• Quantum Chemical Computations using Gaussian 09 program package 
• Expertise in Origin Lab, Basic knowledge in LabVIEW, and NI Multisim.

ACADEMIC QUALIFICATION PROFILE  
Doctor of Philosophy (PhD-Physics) - 2015
Area of Specialization: Nanotechnology, Material Science, Condensed Matter Physics
Thesis Title: “Electronic transport and magnetic properties of nanocluster films and nano-phase alloys”.
Master of Science (M.Sc. Physics) 
CGPA-7/10 with A+ Grade
Thesis Title: “Synthesis and characterization of Nano-crystalline soft magnetic materials”
Bachelor of Science (B.Sc. Physics)
Thesis Title: “Growth and characterization of B.T.C.C. doped with glutamine”
 IELTS Over all band score 6.5/9 (2010)

PROJECTS UNDER INVESTIGATION

1. Design and development of a customized nanocluster deposition system to study the particle size dependence on photoluminescence properties of nano-cluster assembled materials (Submitted to DST  2024 for financial assistance)
2. Development Of Pd Nano-Cluster Based Solid State Hydrogen Sensors With Ultra-Fast Kinetics (Submitted to DST SERB –2023 for financial assistance)
3. Palladium, Magnesium, and Carbon-based hybrid nanocluster structures for high gravimetric capacity hydrogen storage (Funded by Department of Science and Technology (DST), Govt. of India for Funding-2019)

PROJECT WORKS INVESTIGATED

•    Development of solid-state hybrid hydrogen storage devices using palladium and magnesium nanoclusters (Funded by Indian Space Research Organization (ISRO) through Sponsored Research programme-2018)
•    Development of hydrogen sensors for extended range of temperatures from 150K to 300K using 2D nanocluster assembled films of palladium(resistivity and SAW-based) (Funded by Indian Space Research Organization (ISRO) through Sponsored Research programme-2016)
•    Study of the origin of superconductivity using size-controlled nanocluster assembled films of metals like niobium, lead, aluminium, etc. (Funded by Department of Science and Technology (DST), Govt. of India-2016)
•    Vibrational Spectral Analysis of Materials for Self-Assembled Monolayers /Nano Films Using FT-IR, Raman, and SERS Spectra and Quantum Chemical Computations. (Funded by University Grants Commission, Govt. of India-2011)
•    Development of Ultra-Sensitive SERS substrates using nanocluster films for biological applications such as trace detection of pesticides (Funded by Department of Atomic Energy – Govt. of India-2011)
•    Synthesis and characterization of “Nanocrystalline Soft Magnetic Materials,” carried out at Materials Science Division of Bhabha Atomic Research Centre, Mumbai. (Masters Project) 
•    Growth and Characterizations of BTCC(Bis- Thiourea Cadmium Chloride) doped with l- glutamine. (B.Sc. Project)

LIST OF PATENTS

1. A chemiresistive hydrogen sensor and a method there off (Filed application for Indian Patent , Application number 202041035199)

LIST OF PUBLICATIONS

          BOOKS/MONOGRAPHS

1. Praveen S G et.al “Describing nanoclusters as the way forward for hydrogen economy using Pd nanoclusters as a base”  Nano Tools and Devices for Enhanced Renewable Energy, Micro and Nano Technologies 2021, Pages 121-142, https://doi.org/10.1016/B978-0-12-821709-2.00016-5  MANUSCRIPTS UNDER REVIEW/PREPARATION
2. Praveen S. G., C. Bansal, “Electrical transport in a random quasi 2D assembly of Ag nanoclusters” (Manuscript under preparation)
3. Adithya Jayakumar, Praveen S G, VinayakKamble  D. Jaiswal-Nagar “The study of sorption and desorption kinetics of hydrogen gas in ultra-thin films of palladium” (Manuscript under preparation)
4. Adithya Jayakumar, Praveen S G, Gaana K, VinayakKamble  D. Jaiswal-Nagar “Palladium, Magnesium metal nanoclusters based hybrid layered structures for high gravimetric capacity hydrogen storage” (Manuscript under preparation)
5. Manju P , Praveen S G “Citrate-nitrate sol-gel auto-combustion technique: A detailed investigation on the combustion and combustion product attributes as a function of citrate to metal cation ratio”(To be communicated)
6.   J. Binoy,D. E. Nimmi, Geethu Sudhi, S. G. Praveen “A Comprehensive Insight into the Binding Mechanism of Coumaphos with Acetylcholinesterase Based on Modified Bassignana-Cogrossi Model: Vibrational Spectroscopy, Neurotoxic Assay and Molecular Modelling” (Manuscript Under Review)                                                             PUBLISHED RESEARCH ARTICLES
7. Christina E. Antony, Gaana K., Praveen S. G., Adithya Jayakumar, Akshay Yadav, Nikhil S. Sivakumar, Niranjan Kamath, Suma M. N., Vinayak B. Kamble, and Deepshikha Jaiswal-Nagar ” Polyvinylpyrrolidone-Stabilized Palladium Nanocrystals as Chemiresistive Sensors for Low-Concentration Hydrogen Gas Detection”  ACS Appl. Nano Mater. 2021, 4, 2, 1643–1653, (2021) https://doi.org/10.1021/acsanm.0c03109 
8.  George Mathew  Sebastian Francis  Neeraj Kumar Rajak,  Sarojini Gopinathan Praveen  Chakkalakal Vardunny Tomy  Deepshikha Jaiswal?Nagar A simple synthesis method for growing single crystals of a copper coordination polymer [Cu(C2O4)(4-aminopyridine)2(H2O)]n, and its theoretical and physical properties studies Volume56, Issue2 ( 2021)2000124
9. Praveen S.G., C.Bansal, D. Jaiswal-Nagar “Inter-cluster separation induced change in charge transport mechanism in Ni₄₀Pd₆₀ nanoclusters”(Nature) Sci. Rep 9, 7513 (2019)
10. Dharmendra K. Singh, Praveen S. G,  Adithya Jayakumar,   Suma M. N,   Vinayak B. Kamble, J. Mitra  and  D. Jaiswal-Nagar “Thickness induced metal to insulator charge transport and unusual hydrogen response in granular palladium nanofilms” Phys. Chem. Chem. Phys.,22, 27861-27872(2020)
11. S. R. Rajina, S. G. Praveen, T. S. Xavier, Peter T. M. Kenny, and J. Binoy “Spectroscopic investigations of the interaction of BSA and DNA with the anticancer drug, N-(6-ferrocenyl-2-naphthoyl) glycine alanine ethyl ester (FNGAEE)” AIP Conference Proceedings 2220, 070008 (2020)
12. D.E. Nimmi , Geethu Sudhi , S.G. Praveen , J. Binoy Vibrational spectroscopic investigations             and biological activity of toxic material amitraz, Materials Today: Proceedings, https://doi.org/10.1016/j.matpr.2020.01.404
13. Geethu Sudhi, S. G. Praveen, T. S. Xavier, Peter T. M. Kenny, and J. Binoy “Experimental and theoretical investigations of vibrational spectrum and biological activity of dichlorvos” AIP Conference Proceedings 2220, 070007 (2020)
14. Sindhu P S, Nimmi D E, Geethu Sudhi,Abhilash Kumar R G, Dhanesh Thomas, Chandini Sam S P,Praveen S G, J Binoy, The DFT Based Spectral Investigations and Bioactivity of Amprenavir:MaterialsToday:Proceedings,https://doi.org/10.1016/j.matpr.2019.10.005 .
15. Seema Awasthi, Praveen S G, A. Rajanikanth, C. Bansal ”Current-Voltage characteristics of electrochemically synthesized multi-layer grapheme with polyaniline” Journal of Science: Advanced Materials and Devices Volume 3, 1(2018) 37-43.
16. M. Thairiyaraja, G. Arivazhagan, S. G. Praveen, K. Kirubavathi and K. Selvarajuetal “Growth and characterization of 2-Amino-5-bromopyridinium-4-hydroxybenzoate crystals for nonlinear optical and antioxidant applications” Journal of Nonlinear Optical Physics & MaterialsVol. 27, No. 1 (2018) 1850002, 1-16.
17. GeethuSudhi, S R Rajina , S G Praveen, T S Xavier, Peter T M Kenny, D Jaiswal-Nagar, J. Binoy, “Investigations of Vibrational Spectra and Bioactivity Of Novel Anticancer Drug N-(6-Ferrocenyl-2-Naphthoyl)-Gamma-Amino Butyric Acid Ethyl Ester”SpectrochimicaActa Part A: Molecular and Biomolecular Spectroscopy 185(2017,)234-244
18. P Bhaskaran, M Vimalan, P Anandan, G Bakiaraj, K Kirubavathi ,S G Praveen and K Selvaraju “Studies on an L-leucinehydriodidesemiorganic crystal for frequency conversion applications” 2016 Mater. Res. Express 3, 035101
19. GeethuSudhi, S.R. Rajina, S.G. Praveen, T.S. Xavier, Peter T.M. Kenny,J. Binoy “The Electron Transport Mechanism in Ester and its Influence on Bioactivity in the Anticancer Drug N-(6Ferrocenyl-2-Naphthoyl)-L-Alanine-Glycine Ethyl Ester(FNLAGEE) (AIP Conf. Proc. 1953, 080023-1–080023-5)
20. D.E. Nimmi,S.P.Chandhini Sam, S.G. Praveen,J. Binoy “DFT based Vibrational Spectroscopic Investigations and Biological Activity of Toxic Material Monocrotophos” (AIP Conf. Proc. 1953, 080029-1–080029-5)
21.  M.Parvathy,M.S.Gopika,B.L.BincyMary,D.E.Nimmi,S.G.Praveen,J.Binoy“FTIR Spectral Investigations of Toxic Material Dibrom using DFT” (AIP Conf. Proc. 1953, 080040-1–080040-4)
22. S.R.Rajina,GeethuSudhi,P.Austin,S.G.Praveen,T.S.Xavier,PeterT.M.Kenny,J.Binoy Multispectroscopic Investigation of the Interaction of BSA and DNA with the anticancer drug,N-(6-ferrocenyl-2-naphthoyl)-gamma-amino butyric acid Methyl ester” (AIP Conf. Proc. 1953, 080027-1–080027-4)
23. C.Bansal,Praveen S.G., J.T.T. Kumaran, Ashok Chatterjee.  “Inter-cluster distance dependence of electrical conduction in nanocluster assembled films of silver: a new paradigm for designing of nanostructures” (Nature)Sci. Rep. 5, 7685, (2015).
24. M.N.AudlineJini, J.T.T.Kumaran, A.Dickson Benjamin, S.G.Praveen“Density Functional Theory and Natural Bond Order analysis of isobutyl trimethoxysilane”Elixir Vib. Spec. 82 (2015) 32425-32432
25. M.N.AudlineJini, J.T.T.Kumaran, A.Dickson Benjamin, S.G.Praveen“ Vibrational spectral analysis of TCHS used in SAM and formation dynamics”IJCPS Vol. 4, No. 3, 2015
26. M.N.AudlineJini, J.T.T.Kumaran, A.Dickson Benjamin, S.G.Praveen“The Vibrational Spectra of Trichlorocyclohexylsilane and Formation of Self Assembled Monolayer” IJIRSET 3, 11 (2014) 17195-17199.
27. Praveen S.G., J Binoy, J.T.T. Kumaran, C.Bansal, AudlineJini M.N.,V.S. Jayakumar “Rotation Dependent Si Hyperconjugation in Self Assembly Material p- Tolyltrichlorosilane(PTCS) and Formation of SAM"  Journal of Molecular Structure 1064 (2014) 81–87.
28. Subramanian Balachandran, SarojiniGopinathan Praveen, RengasamyVelmurugan and MeenakshisundaramSwaminathan“Facile fabrication of highly e?cient, reusable heterostructured Ag–ZnO–CdO and its twin applications of dye degradation under natural sunlight and self-cleaning “ RSC Adv.,2014,4, 4353–4362.                             CONFERENCE PROCEEDINGS
29. Praveen S G, D Jaiswal Nagar,Aditya Jayakumar ,Gaana K “ Palladium, Magnesium, and Carbon-based hybrid nanocluster structures for high gravimetric capacity hydrogen storage” Industry Academia Conclave on Hydrogen and Fuel Cells, IISER Thiruvananthapuram ,February 2020
30. GauthamMitra, Praveen S G, Joy Mitra “Electrical transport in quasi 2d assembly of gold nanoclusters” International conference on nanomaterials and nanotechnology (ICNANO) VBRI Press 2017 (Received Best Poster award)
31. Praveen S. G., C. Bansal “Electrical transport in a random quasi 2D assembly of Ag nanoclusters”, Nanoparticle assembly: From fundamental to applications, January 2016, Faraday Discussions Royal Society of Chemistry, London.
32. GeethuSudhi, S.R. Rajina, S.G. Praveen, T.S. Xavier, Peter T.M. Kenny,J. Binoy“The Electron Transport Mechanism in Ester and its Influence on Bioactivity in the Anticancer Drug N-(6Ferrocenyl-2-Naphthoyl)-L-Alanine-Glycine Ethyl Ester(FNLAGEE) (AIP Conf. Proc. 1953, 080023-1–080023-5)
33. D.E. Nimmi,S.P.Chandhini Sam,S.G. Praveen,J. Binoy “DFT based Vibrational Spectroscopic Investigations and Biological Activity of Toxic Material Monocrotophos” (AIP Conf. Proc. 1953, 080029-1–080029-5)
34.  M.Parvathy,M.S.Gopika,B.L.BincyMary,D.E.Nimmi,S.G.Praveen,J.Binoy“FTIR Spectral Investigations of Toxic Material Dibrom using DFT” (AIP Conf. Proc. 1953, 080040-1–080040-4)
35. S.R.Rajina,GeethuSudhi,P.Austin,S.G.Praveen,T.S.Xavier,PeterT.M.Kenny,J.Binoy Multispectroscopic Investigation of the Interaction of BSA and DNA with the anticancer drug,N-(6-ferrocenyl-2-naphthoyl)-gamma-amino butyric acid Methyl ester” (AIP Conf. Proc. 1953, 080027-1–080027-4)
36. Neeraj K. Rajak, Trupti S. Gaikwad, AmruthaMukundan, Manju P, A. Sundaresan, A. Thamizhavel, ManojRaamaVarma, Praveen S. G. and D. Jaiswal-Nagar “Growth of a high temperature superconductor BSCCO by self-fluxmethod using regrowth and a pressure technique” Institute for Plasma Research, India.
37. Praveen S.G., C.Bansal and D. Jaiswal-Nagar “ Electronic transport studies of quasi 2D assembly of Ni₄₀Pd₆₀ alloy nanoclusters” Presented in International Symposium on Clusters, Cluster-Assemblies and Nanomaterials (ISCAN-2016),Indian Institute of Science Education and Research, Thiruvananthapuram.
38. S R Rajina , GeethuSudhi, S G Praveen,JBinoy, Peter T M Kenny etal FT IR and FT Raman Spectroscopic Investigations of Anticancer drug:  N-(6-ferrocenyl-2-naphthoyl)-gamma-amino butyric acid methyl ester (FNGgABME), ICOPVS -2016, Lucknow.
39. GeethuSudhi, S R Rajina , S G Praveen, T S Xavier,JBinoy, Peter T M Kenny etal DFT Based Vibrational Spectral Analysis and Biological Activity of N-(6-Ferrocenyl-2-Napthoyl)-Glycine-Glycine Methyl Ester(FNGGME), ), ICOPVS -2016, Lucknow, India.
40. GeethuSudhi, S R Rajina , S G Praveen, T S Xavier,JBinoy, Peter T M Kenny etal DFT Based Vibrational Spectral Analysis and Biological Activity of N-(6- Ferrocenyl-2- Napthoyl)-Glycine- Glycine Methyl Ester(FNGGME) ), ICOPVS -2016, Lucknow, India
41. GeethuSudhi, S R Rajina , S G Praveen, T S Xavier,JBinoy, Peter T M Kenny etal Vibrational Spectral Investigation And Anticancer Activity Of N-(6- Ferrocenyl-2- Napthoyl)-Glycine- D-Alanine Methyl Ester (FNGdAME) ICOPVS -2016, Lucknow, India
42. Praveen S. G., C. Bansal “Observation of percolation behavior in 2-dimensional assembled films of Ag metal nanoclusters and unusual temperature dependent transport properties” Frontiers in Physics (FIP 2013) organized by University of Hyderabad, India. (Received Best Poster award)
43. AudlineJini M.N., Dickson Benjamin A., J T TKumaran, S.G. Praveen, “ Vibrational spectral analysis and formation of SAM of Ethoxytrimethylsilane(ETMS)”. Advances in material science held at M.S. University, Tirunelveli.September 29-30. 2014 (ISBN 978-93-81402-16-0).
44. M.N.AudlineJini, J.T.T.Kumaran, A.Dickson Benjamin, S.G.Praveen“ DFT and NBO analysis of ethoxytrimethylesilane and formation of SAM” National conference on Quantum chemistry 2014 held at NMCC, Marthandam , Kanyakumari.India.
45. M.N.AudlineJini, J.T.T.Kumaran, A.Dickson Benjamin, S.G.Praveen“Vibrational spectral analysis of isobutyletrimethoxysilane and formation of SAM”  National Conference on material science held at Sri Ayyappa College Nagercoil, India
46. Praveen S.G., J. Binoy, J. ThampiThankaKumarana, RajuBotta, C.Bansal and V.S. Jayakumar, “NLO Activity in Self Assembly Material, p-Tolyltrichlorosilane (PTCS):              A Vibrational Spectral Study” International conference on raman spectroscopy (ICORS-2012), Organized by Indian Institute of Science, Bangalore, India.
47. J Binoy , S G Praveen  , M.K.Marchewka and V S Jayakumar“FT Raman and FT IR Spectral Analysis of  Piperazinium Nitrate Crystal sing DFT”International conference on raman spectroscopy (ICORS-2012), Organized by Indian Institute of Science, Bangalore, India.
48.  V.R. Suresh Kumar, S. D. D.Roy,JBinoy , S G Praveen  , M.K.Marchewka and V S Jayakumar“FT-Raman and FTIR spectral analysis and ab initio calculations of the NLO crystal Bismelaminiumsulphatedihydrate (BMSD)”International conference on raman spectroscopy (ICORS-2012), Organized by Indian Institute of Science, Bangalore, India.
49. Praveen S.G, J. Binoy, J. ThampiThankaKumaran, M.K. Marchewka and V.S. Jayakumar“The Vibrational Analysis Of MelaminiumCation In Melaminium Benzoate Dihydrate : A DFT Study” 20^th DAE- BRNS National Laser Symposium (NLS-20 ,2011), Organized by Anna University Chennai, India.
50. Praveen S.G, D.Surendiran, K. Kirupavathi, K. Selvaraju “Growth and characterization of Pure and L – Glutamine doped BTCC Crystals”Published in National Symposium on “NLO Crystals and Modeling in Crystal Growth” held at Anna University, India.
51. Praveen S.G.,S.Vinu,KCBright,Freeda “Growth and characterization of B.T.C.C. doped with glutamine” ,Published in a National level Conference held at South Travencore Hindu College, India.

PRESENTATIONS/INVITED TALKS

• Praveen S.G., C. Bansal. Ashok Chatterjee “Conductivity percolation in 2-dimensional nanocluster assembled films of silver and unusual temperature dependent transport properties” Andhra Pradesh Science Congress organized by A.P. Academy of Sciences and University of Hyderabad, India.
• Praveen S.G.,C.Bansal, J.T.T. Kumaran, Ashok Chatterjee “Dependence of inter-cluster separation on electrical conductivity of quasi-2D nanocluster assembled films of Ag: A new paradigm for designing of nanostructures” Indian Institute of Science Education and Research (IISER-TVM, 2014), Trivandrum. India
• Praveen S.G., “Electronic transport and magnetic properties of random quasi-2D assembly of nanoclusters” Indian Institute of Science Education and Research (IISER-TVM,2015), Trivandrum. India
• Praveen SG (A walk through nanoclusters- National seminar on experimental and theoretical physics 2016) Govt. Women’s College Trivandrum India.
• Praveen SG “An overview of Novel hydrogen gas sensor based on 2D assembly of  Pd nanoclusters - (DBT- Star College Scheme, Ministry of Science and technology, Govt. of India, March- 2017) St. John’s College Anchal, Kollam
• Praveen S G, “Various physical properties of nanocluster assembled films of Au, Ag, Pd, NiPd (Orientation programme of Malankara Catholic College Mariagiri July 2018)
• Praveen S G “Programmable metal nanoclusters with atomic precession” (Annual Pedestal lecture series 2022, Organized by  IQAC and Department of Physics, VTMNSS College, Dhanuvachapuram, May 2022)
• Praveen S G “ Global Science for global wellbeing” National Science day lecture at University College of Education Anchal Kollam February 2023

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