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Kim, In Young and Kim, Sungho and Premkumar, Selvarajan and Yang, Jae Hun and Umapathy, Siva and Vinu, Ajayan (2019) Thermodynamically Stable Mesoporous C3N7 and C3N6 with Ordered Structure and Their Excellent Performance for Oxygen Reduction Reaction. In: SMALL .
Kundu, Kaushik and Chandra, Goutam K and Umapathy, Siva and Kiefer, Johannes (2019) Spectroscopic and computational insights into the ion-solvent interactions in hydrated aprotic and protic ionic liquids. In: PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 21 (37). pp. 20791-20804.
Jana, Sanjib and Yapamanu, Adithya Lakshmanna and Umapathy, Siva (2019) Unraveling structural dynamics in isoenergetic excited S-1 and multi-excitonic (1)(TT) states of 9,10-bis(phenylethynyl)anthracene (BPEA) in solution via ultrafast Raman loss spectroscopy Electronic supplementary information (ESI) available: Summary of the concentration-dependent kinetics of TA of BPEA, and the molecular structure of BPEA along with its numbering on each atom. See DOI: 10.1039/c8cp06658b. In: PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 21 (26). pp. 14341-14349.
Premkumar, S and Kundu, Kaushik and Umapathy, Siva (2019) Impact of cesium in methylammonium lead bromide perovskites: insights into the microstructures, stability and photophysical properties. In: NANOSCALE, 11 (21). pp. 10292-10305.
Panda, Somenath and Kundu, Kaushik and Kiefer, Johannes and Umapathy, Siva and Gardas, Ramesh L. (2019) Molecular-Level Insights into the Microstructure of a Hydrated and Nanoconfined Deep Eutectic Solvent. In: JOURNAL OF PHYSICAL CHEMISTRY B, 123 (15). pp. 3359-3371.
Pal, Anil Kumar and Pagal, Sudhakar and Prashanth, Kenchappa and Chandra, Goutam Kumar and Umapathy, Siva and Mohan, D Bharathi (2019) Ag/ZnO/Au 3D hybrid structured reusable SERS substrate as highly sensitive platform for DNA detection. In: SENSORS AND ACTUATORS B-CHEMICAL, 279 . pp. 157-169.
Nayak, Deepak Ranjan and Bhat, Navakanta and Umapathy, Siva (2018) Hydrophobic mediated growth of galvanic-nanobuds from germanium nanowires for a highly tunable SERS substrate. In: NEW JOURNAL OF CHEMISTRY, 42 (24). pp. 20061-20068.
Kim, Young In and Kim, Sungho and Jin, Xiaoyan and Premkumar, Selvarajan and Chandra, Goutam and Lee, Nam-Suk and Mane, Gurudas P and Hwang, Seong-Ju and Umapathy, Siva and Vinu, Ajayan (2018) Ordered Mesoporous C3N5 with a Combined Triazole and Triazine Framework and Its Graphene Hybrids for the Oxygen Reduction Reaction (ORR). In: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 57 (52). pp. 17135-17140.
Kumar, Srividya and Visvanathan, Abhirami and Arivazhagan, Arimappamagan and Santhosh, Vani and Somasundaram, Kumaravel and Umapathy, Siva (2018) Assessment of Radiation Resistance and Therapeutic Targeting of Cancer Stem Cells: A Raman Spectroscopic Study of Glioblastoma. In: ANALYTICAL CHEMISTRY, 90 (20). pp. 12067-12074.
Kharangarh, Poonam R and Umapathy, Siva and Singh, Gurmeet (2018) Investigation of sulfur related defects in graphene quantum dots for tuning photoluminescence and high quantum yield. In: APPLIED SURFACE SCIENCE, 449 (SI). pp. 363-370.
Benzigar, Mercy R and Joseph, Stalin and Baskar, Arun V and Park, Dae-Hwan and Chandra, Goutam and Umapathy, Siva and Talapaneni, Siddulu Naidu and Vinu, Ajayan (2018) Ordered Mesoporous C-70 with Highly Crystalline Pore Walls for Energy Applications. In: ADVANCED FUNCTIONAL MATERIALS, 28 (35).
Kayal, Surajit and Roy, Khokan and Lakshmanna, Y Adithya and Umapathy, Siva (2018) Probing the effect of solvation on photoexcited 2-(2 `-hydroxyphenyl)benzothiazole via ultrafast Raman loss spectroscopic studies. In: JOURNAL OF CHEMICAL PHYSICS, 149 (4).
Kayal, Surajit and Roy, Khokan and Lakshmanna, Yapamanu Adithya and Umapathy, Siva (2018) Ultrafast Raman Loss Spectroscopy Unravels the Dynamics in Entangled Singlet and Triplet States in Thioxanthone. In: JOURNAL OF PHYSICAL CHEMISTRY A, 122 (29). pp. 6048-6054.
Venkatraman, Ravi Kumar and Kayal, Surajit and Barak, Arvind and Orr-Ewing, Andrew J and Umapathy, Siva (2018) Intermolecular Hydrogen Bonding Controlled Intersystem Crossing Rates of Benzophenone. In: JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 9 (7). pp. 1642-1648.
Kuhar, Nikki and Sil, Sanchita and Verma, Taru and Umapathy, Siva (2018) Challenges in application of Raman spectroscopy to biology and materials. In: RSC ADVANCES, 8 (46). pp. 25888-25908.
Kayal, Surajit and Roy, Khokan and Umapathy, Siva (2018) Femtosecond coherent nuclear dynamics of excited tetraphenylethylene: Ultrafast transient absorption and ultrafast Raman loss spectroscopic studies. In: JOURNAL OF CHEMICAL PHYSICS, 148 (2).
Kharangarh, Poonam R and Umapathy, Siva and Singh, Gurmeet (2018) Thermal Effect of Sulfur Doping for Luminescent Graphene Quantum Dots. In: ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY, 7 (3). M29-M34.
Panda, Somenath and Kundu, Kaushik and Umapathy, Siva and Gardas, Ramesh L (2017) A Combined Experimental and Theoretical Approach to Understand the Structure and Properties of N-Methylpyrrolidone-Based Protic Ionic Liquids. In: CHEMPHYSCHEM, 18 (23). pp. 3416-3428.
Kharangarh, Poonam R and Umapathy, Siva and Singh, Gurmeet (2017) Effect of defects on quantum yield in blue emitting photoluminescent nitrogen doped graphene quantum dots. In: JOURNAL OF APPLIED PHYSICS, 122 (14).
Kharangarh, Poonam R and Umapathy, Siva and Singh, Gurmeet (2017) Effect of defects on quantum yield in blue emitting photoluminescent nitrogen doped graphene quantum dots. In: JOURNAL OF APPLIED PHYSICS, 122 (14).
Kumar, Akshay and Sharma, Raj Kishore and Singh, Gurmeet and Umapathy, Siva and Kharangarh, Poonam Rani (2017) High Performance Pseudocapacitor Electrode Materials Based on CoCl2 Doped Graphene Quantum Dots. In: EMERGING MATERIALS RESEARCH, 6 (2).
Gayathri, Sivakumar and Varma, G Sreevidya and Singh, Gagandeep and Shivananju, Bannur Nanjunda and Sridevi, S and Umapathy, Siva and Gorthi, Sai Siva and Asokan, Sundarrajan (2017) In situ monitoring of photostriction in chalcogenide glass film using fiber Bragg grating sensors. In: INTERNATIONAL JOURNAL OF OPTOMECHATRONICS, 11 (1). pp. 27-35.
Ramdass, Arumugam and Sathish, Veerasamy and Velayudham, Murugesan and Thanasekaran, Pounraj and Umapathy, Siva and Rajagopal, Seenivasan (2017) Luminescent sensor for copper(II) ion based on imine functionalized monometallic rhenium(I) complexes. In: SENSORS AND ACTUATORS B-CHEMICAL, 240 . pp. 1216-1225.
Roy, Khokan and Kayal, Surajit and Ariese, Freek and Beeby, Andrew and Umapathy, Siva (2017) Mode specific excited state dynamics study of bis(phenylethynyl) benzene from ultrafast Raman loss spectroscopy. In: JOURNAL OF CHEMICAL PHYSICS, 146 (6).
Kharangarh, Poonam R and Umapathy, Siva and Singh, Gurmeet (2017) Synthesis and luminescence of ceria decorated graphene quantum dots (GQDs): Evolution of band gap. In: International Conference on Technologically Advanced Materials (ICTAM), NOV 07-11, 2016, Univ Delhi, New Delhi, INDIA, pp. 114-123.
Roy, Khokan and Kayal, Surajit and Kumar, Venkatraman Ravi and Beeby, Andrew and Ariese, Freek and Umapathy, Siva (2017) Understanding Ultrafast Dynamics of Conformation Specific Photo-Excitation: A Femtosecond Transient Absorption and Ultrafast Raman Loss Study. In: JOURNAL OF PHYSICAL CHEMISTRY A, 121 (35). pp. 6538-6546.
Umapathy, Siva (2016) Editorial on the special issue of JRS on International Year of Light (IYL). In: JOURNAL OF RAMAN SPECTROSCOPY, 47 (1, SI). pp. 7-8.
Kumar, Venkatraman Ravi and Verma, Chandra and Umapathy, Siva (2016) Molecular dynamics and simulations study on the vibrational and electronic solvatochromism of benzophenone. In: JOURNAL OF CHEMICAL PHYSICS, 144 (6).
Gautam, Rekha and Deobagkar-Lele, Mukta and Majumdar, Shamik and Chandrasekar, Bhagawat and Victor, Emmanuel and Ahmed, Syed Moiz and Wadhwa, Nitin and Verma, Taru and Kumar, Srividya and Sundaresan, Nagalingam Ravi and Umapathy, Siva and Nandi, Dipankar (2016) Molecular profiling of sepsis in mice using Fourier Transform Infrared Microspectroscopy. In: JOURNAL OF BIOPHOTONICS, 9 (1-2). pp. 67-82.
Kumar, Srividya and Verma, Taru and Mukherjee, Ria and Ariese, Freek and Somasundaram, Kumaravel and Umapathy, Siva (2016) Raman and infra-red microspectroscopy: towards quantitative evaluation for clinical research by ratiometric analysis. In: CHEMICAL SOCIETY REVIEWS, 45 (7). pp. 1879-1900.
Kumar, Venkatraman Ravi and Umapathy, Siva (2016) Solvent effects on the structure of the triplet excited state of xanthone: a time-resolved resonance Raman study. In: JOURNAL OF RAMAN SPECTROSCOPY, 47 (10). pp. 1220-1230.
Umapathy, Siva (2016) Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. In: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 171 . p. 525.
Kumar, Venkatraman Ravi and Ariese, Freek and Umapathy, Siva (2016) Triplet excited electronic state switching induced by hydrogen bonding: A transient absorption spectroscopy and time-dependent DFT study. In: JOURNAL OF CHEMICAL PHYSICS, 144 (11).
Dutta, Abhaya and Gautam, Rekha and Chatterjee, Sreejata and Ariese, Freek and Sikdar, Sujit Kumar and Umapathy, Siva (2015) Ascorbate Protects Neurons against Oxidative Stress: A Raman Microspectroscopic Study. In: ACS CHEMICAL NEUROSCIENCE, 6 (11). pp. 1794-1801.
Kumar, Venkatraman Ravi and Rajkumar, Nagappan and Ariese, Freek and Umapathy, Siva (2015) Direct Observation of Thermal Equilibrium of Excited Triplet States of 9,10-Phenanthrenequinone. A Time-Resolved Resonance Raman Study. In: JOURNAL OF PHYSICAL CHEMISTRY A, 119 (40). pp. 10147-10157.
Dhoke, Kunal and Zanni, Martin and Harbola, Upendra and Venkatraman, Ravi Kumar and Arunan, Elangannan and Lin, King-Chuen and Nenov, Artur and Skelton, Jonathan and Miller, Dwayne RJ and Hirst, Jonathan D and Aquilanti, Vincenzo and Helliwell, John R and Keshavamurthy, Srihari and Ramesh, Sai and Ashfold, Mike and Pallipurath, Anuradha and Chowdhury, Priyadarshi Roy and Mukhopadhyay, Sanghamitra and Jemmis, ED and Medhi, Himani and Goswami, Debabrata and Halder, Prasenjit and Junge, Wolfgang and Hariharan, Mahesh and Singh, Santosh Kumar and Umapathy, Siva and Lakshmannam, Adithya and Nielsen, Martin Meedom and Aravamudhan, Sankarampadi and Deckert, Volker and Ghiggino, Kenneth and Tominaga, Keisuke and Edwards, Alison (2015) Dynamics of chemical bond: general discussion. In: FARADAY DISCUSSIONS, 177 . pp. 121-154.
Periyasamy, Vijitha and Sil, Sanchita and Dhal, Gagan and Ariese, Freek and Umapathy, Siva and Pramanik, Manojit (2015) Experimentally validated Raman Monte Carlo simulation for a cuboid object to obtain Raman spectroscopic signatures for hidden material. In: JOURNAL OF RAMAN SPECTROSCOPY, 46 (7). pp. 669-676.
Kumar, Srividya and Matange, Nishad and Umapathy, Siva and Visweswariah, Sandhya S (2015) Linking carbon metabolism to carotenoid production in mycobacteria using Raman spectroscopy. In: FEMS MICROBIOLOGY LETTERS, 362 (3).
Mazumdar, Sayantan and Roy, Khokan and Srihari, Velaga and Umapathy, Siva and Bhattacharyya, Aninda J (2015) Probing Ultrafast Photoinduced Electron Transfer to TiO2 from CdS Nanocrystals of Varying Crystallographic Phase Content. In: JOURNAL OF PHYSICAL CHEMISTRY C, 119 (30). pp. 17466-17473.
Gautam, Rekha and Vanga, Sandeep and Madan, Aditi and Gayathri, Narayanappa and Nongthomba, Upendra and Umapathy, Siva (2015) Raman Spectroscopic Studies on Screening of Myopathies. In: ANALYTICAL CHEMISTRY, 87 (4). pp. 2187-2194.
Ramdass, Arumugam and Sathish, Veerasamy and Velayudham, Murugesan and Thanasekaran, Pounraj and Umapathy, Siva and Rajagopal, Seenivasan (2015) Synthesis and characterization of monometallic rhenium(I) complexes and their application as selective sensors for copper(II) ions. In: RSC ADVANCES, 5 (48). pp. 38479-38488.
Sil, Sanchita and Chaturvedi, Deepika and Krishnappa, Keerthi B and Kumar, Srividya and Asthana, SN and Umapathy, Siva (2014) Density Functional Theoretical Modeling, Electrostatic Surface Potential and Surface Enhanced Raman Spectroscopic Studies on Biosynthesized Silver Nanoparticles: Observation of 400 pM Sensitivity to Explosives. In: JOURNAL OF PHYSICAL CHEMISTRY A, 118 (16). pp. 2904-2914.
Samuel, Ashok Zachariah and Umapathy, Siva (2014) Energy funneling and macromolecular conformational dynamics: a 2D Raman correlation study of PEG melting. In: POLYMER JOURNAL, 46 (6). pp. 330-336.
Sil, Sanchita and Umapathy, Siva (2014) Raman spectroscopy explores molecular structural signatures of hidden materials in depth: Universal Multiple Angle Raman Spectroscopy. In: SCIENTIFIC REPORTS, 4 .
Pandey, Rishikesh and Umapathy, Siva (2014) Solvent-induced changes on the polarity of the triplet excited state of 2-chlorothioxanthone: From time-resolved absorption and resonance Raman spectroscopies. In: CHEMICAL PHYSICS, 428 . pp. 175-180.
Nayak, Deepak Raman and Bhat, Navakanta and Umapathy, Siva (2014) Surface Enhanced Raman Scattering on Anodized Alumina Templates for Bio-sensing Applications. In: 17th International Workshop on the Physics of Semiconductor Devices (IWPSD), DEC 10-14, 2013, Noida, INDIA, pp. 577-579.
Sil, Sanchita and Kuhar, Nikki and Acharya, Somnath and Umapathy, Siva (2013) Is chemically synthesized Graphene `really' a unique substrate for SERS and fluorescence quenching? In: Scientific Reports, 3 . 3336_1-3336_6.
Harbola, Upendra and Umapathy, Siva and Mukamel, Shaul (2013) Loss and gain signals in broadband stimulated-Raman spectra: Theoretical analysis. In: Physical Review A, 88 (1). 011801_1-011801_4.
Sil, Sanchita and Kuhar, Nikki and Acharya, Somnath and Umapathy, Siva (2013) Is Chemically Synthesized Graphene `Really' a Unique Substrate for SERS and Fluorescence Quenching? In: SCIENTIFIC REPORTS, 3 .
Pandey, Rishikesh and Umapathy, Siva (2012) Simultaneous Detection of Two Triplets: A Time-Resolved Resonance Raman Study. In: JOURNAL OF PHYSICAL CHEMISTRY A, 116 (33). pp. 8484-8489.
Patil, NR and Melavanki, RM and Kapatkar, SB and Chandrasekhar, K and Ayachit, NH and Umapathy, Siva (2012) Solvent effect on the fluorescence quenching of biologically active carboxamide by aniline and carbon tetrachloride in different solvents using S-V plots. In: JOURNAL OF LUMINESCENCE, 132 (3). pp. 558-565.
Gautam, Rekha and Chandrasekar, Bhagawat and Deobagkar-Lele, Mukta and Rakshit, Srabanti and Kumar, Vinay BN and Umapathy, Siva and Nandi, Dipankar (2012) Identification of Early Biomarkers during Acetaminophen-Induced Hepatotoxicity by Fourier Transform Infrared Microspectroscopy. In: PLOS ONE, 7 (9).
