Publications
- Unveiling NIR Aza-Boron-Dipyrromethene (BODIPY) Dyes as Raman Probes: Surface-Enhanced Raman Scattering (SERS)-Guided Selective Detection and Imaging of Human Cancer Cells, N. Adarsh, A. Ramya, K. Maiti and D. Ramaiah, Chem. Eur. J., 2017, 23, 14286 – 14291.
- Bis(3,5-diiodo-2,4,6-trihydroxyphenyl) squaraine photodynamic therapy disrupts redox homeostasis and induces mitochondria-mediated apoptosis in human breast cancer cells, P. S. Saneesh Babu, P. M. Manu, T. J. Dhanya, T. Pradhan, M. R. Nair, S. Arun, A. A. Kumar, V. S. Jisha, D. Ramaiah, S. A. Nair and M. R. Pillai, Nature Scientific Reports, 2017, 07, 42126.
- Carbazole-Linked Near-Infrared Aza-BODIPY Dyes as Triplet Sensitizers and Photoacoustic Contrast Agents for Deep-Tissue Imaging, Y. Gawale, N. Adarsh, S. K. Kalva, J. Joseph, M. Pramanik, D. Ramaiah and N. Sekar, Chem. Eur. J, 2017, 23, 6570–6578.
- Aryl appended neutral and cationic half-sandwich ruthenium (II)-NHC complexes: synthesis, characterisation and catalytic applications, M. Viji, N. Tyagi and D. Ramaiah, New J. Chem., 2017, 41, 12736-12745.
- Chiral photochemical scissors: Toward site specific cleavage of proteins with light, B. Stromer, M. Limbacher, D. T. Jayaram, S. Yenjai, R. Chowdhury, A. Buranaprapuk, D. Ramaiah, and C. V. Kumar, J. Photochem. Photobiol. A Chem., 2017, 340, 181-200.
- In Vitro and in Vivo Demonstration of Photodynamic Activity and Cytoplasm Imaging through TPE Nanoparticles, D. T. Jayaram, S. Ramos-Romero, B. H. Shankar, C. Garrido, N. Rubio, L. Sanchez-Cid, S. B. Gómez, J. Blanco, and D. Ramaiah, ACS Chem. Biol. 2016, 11, 104-112.
- Tuning of photoluminescence properties of functional phthalides for OLED applications, M. Shanmugasundaram, J. Joseph, D. Ramaiah, J. Photochem. Photobiol. A: Chem., 2016, 330, 156–162.
- Selective recognition of cyanide ions by amphiphilic porphyrins in aqueous medium, A. K. Paul, S. C. Karunakaran, D. T. Jayaram, J. Joseph and D. Ramaiah, J. Porphyrins and Phthalocyanines, 2016, 20, 1368-1376.
- Effective Amyloid Defibrillation by Polyhydroxyl-Substituted Squaraine Dyes, D. T. Jayaram, B. H. Shankar, and D. Ramaiah, Chem. Asian J. 2015, 10 2688-2693.
- Naphthalene Imide Conjugates: Formation of Supramolecular Assemblies, and the Encapsulation and Release of Dyes through DNA-Mediated Disassembly, B. H. Shankar, D. T. Jayaram and D. Ramaiah, Chem. Eur. J. 2015, 21, 17657-17663.
- Amino Acid-Porphyrin Conjugates: Synthesis and Study of their Photophysical and Metal Ion Recognition Properties, A. K. Paul, S. C. Karunakaran, J. Joseph and D. Ramaiah, Photochem. Photobiol. 2015, 91, 1348-1355.
- CSIR-North East Institute of Science and Technology, Jorhat., D. Banik, I. I. Zhimo, R. L. Bezbaruah, D. Ramaiah, Current Science, 2015, 108, 1075-1079.
- Enhancement in intramolecular interactions and in vitro biological activity of a tripodal tetradentate system upon complexation, N. Tyagi, M. Viji, S. C. Karunakaran, S. Varughese, S. Ganesan, S. Priya, P. S. S. Babu, A. S. Nair, and D. Ramaiah, Dalton Trans., 2015, 44, 15591-15601.
- Simultaneous binding of a cyclophane and classical intercalators to DNA: Observation of FRET-mediated white light emission
K. S. Sanju, S. Thurakkal, P. P. Neelakandan, J. Joseph and D. Ramaiah, Phys. Chem. Chem. Phys., 2015, 17, 13495-13500. - Sensitive Naked Eye Detection of Hydrogen Sulfide and Nitric Oxide by Aza-BODIPY Dyes in Aqueous Medium, N. Adarsh, M. S. Krishnan and D. Ramaiah, Anal. Chem., 2014, 86, 9335-9342.
- A Reversible Dual Mode Chemodosimeter for the Detection of Cyanide Ions in Natural Sources, B. H. Shankar, D. T. Jayaram and D. Ramaiah, Chem. Asian J. 2014, 9, 1636-1642.
- Selective and Dual Naked Eye Detection of Cu2+ and Hg2+ Ions Using a Simple Quinoline-Carbaldehyde Chemosensor, C. L. Devi, S. Thurakkal, B. H. Shankar and D. Ramaiah, Sensors and Actuators, 2014, 204, 480–488.
- Effective Discrimination of GTP from ATP by a Cationic Tentacle Porphyrin through “Turn-On” Fluorescence Intensity, S. C. Karunakaran, A. K. Paul and D. Ramaiah, RSC Adv., 2014, 4, 30644-30647.
- Fluorescent Chemodosimeter based on NHC Complex for Selective Recognition of Cyanide Ions in Aqueous Medium, M. Viji, A. K. Nair, P. C. Nandajan and D. Ramaiah, RSC. Adv., 2014, 4, 47982-47986
- Antimicrobial Photodynamic Efficiency of Novel Cationic Porphyrins towards Periodontal Gram-positive and Gram-negative Pathogenic Bacteria, Chandra Sekhar Prasanth, Suneesh C. Karunakaran, Albish K. Paul, Vesselin Kussovski, Vanya Mantareva, D. Ramaiah, Leslie Selvaraj, Ivan Angelov, Latchezar Avramov, Krishnankutty Nandakumar and Narayanan Subhash, Photochem. Photobiol., 2013, 90, 628-640.
- Efficient Reaction Based Colorimetric Probe for Sensitive Detection, Quantification, and On-Site Analysis of Nitrite Ions in Natural Water Resources, N. Adarsh, M. Shanmugasundaram, and D. Ramaiah, Anal. Chem., 2013, 85, 10008-10012.
- Optimization of Triplet Excited State and Singlet Oxygen Quantum Yields of Picolylamine–Porphyrin Conjugates through Zinc Insertion, Betsy Marydasan, Akhil K. Nair, and D. Ramaiah, J. Phys. Chem. B, 2013, 117 (43), 13515-13522.
- White Photoluminescence and Electroluminescence from a Ternary System in Solution and Polymer Matrix, K. S. Sanju and D. Ramaiah, Chem. Commun., 2013, 49, 11626-11628.
- Photomorphogenesis of γ-Globulin: Effect on Sequential Ordering and Knock Out of Gold Nanoparticles Array, D. T. Jayaram, B. H. Shankar and D. Ramaiah, RSC Adv., 2013, 3, 13463-13469.
- Study of the Mode and Efficiency of DNA Binding in the Damage Induced by Photoactivated Water Soluble Porphyrin, S. C. Karunakaran, D. Ramaiah, I. Schulz and B. Epe, Photochem. Photobiol., 2013, 89 (5), 1100-1105
- Dye Encapsulation and Release by a Zinc–Porphyrin Pincer System through Morphological Transformations, B. Marydasan, A. K. Nair and D. Ramaiah, RSC Adv., 2013, 3, 3815-3818.
- Interplay of Monomer, Intra- and Intermolecular Excimer Fluorescence in Cyclophanes and Selective Recognition of Methanol Vapours, P. C. Nandajan, P. P. Neelakandan and D. Ramaiah, RSC Adv., 2013, 3, 5624-5630.
- In Vitro Demonstration of Apoptosis Mediated Photodynamic Activity and NIR Nucleus Imaging through a Novel Porphyrin, S. C. Karunakaran, P. S. Saneesh Babu, B. Madhuri, B. Marydasan, A. K. Paul, A. S. Nair, K. S. Rao, A. Srinivasan, T. K. Chandrashekar, Ch. M. Rao, M. R. Pillai, and D. Ramaiah, ACS Chem. Biol. 2013, 8, 127-132 (Highlighted as the Cover Page of the Journal).
- Aza-BODIPY derivatives: Enhanced quantum yields of Triplet Excited State and Singlet Oxygen Generation and Their Role as Facile Green Photooxygenation Catalyst, N. Adarsh, M. Shanmugasundaram, R. R. Avirah and D. Ramaiah, Chem. Eur. J. 2012 (DOI: 10.1002/chem.201202438).
- Meso-Tetrakis(p-Sulfonatophenyl)N-Confused Porphyrin Tetrasodium Salt: A Potential Sensitizer for Photodynamic Therapy, A. P. Thomas, P. S .Saneesh Babu, S. Asha Nair, S. Ramakrishnan, D. Ramaiah, T. K. Chandrashekar, A. Srinivasan and M. Radhakrishna Pillai, J. Med. Chem. 2012, 55, 5110-5120.
- Squaraine Dyes in PDT: From Basic Design to in vivo Demonstration, R. R. Avirah, D. T. Jayaram, N. Adarsh and D. Ramaiah, Org. Biomol. Chem. 2012, 10, 911-920 (Hot Perspective Research Article).
- Novel Semisquaraine Regioisomers: Isolation, Divergent Chemical Reactivity and Photophysical Properties, R. R. Avirah, K. Jyothish, C. H. Suresh, E. Suresh and D. Ramaiah, Chem. Commun, 2011, 47, 12822-12824.
- Dansyl-Naphthalimide Dyads as Molecular Probes: Effect of Spacer Group on Metal Ion Binding Properties, B. H. Shankar and D. Ramaiah, J. Phys. Chem. B, 2011, 115, 13292-13299.
- DNA-Assisted White Light Emission Through FRET, K. S. Sanju, P. P. Neelakandan and D. Ramaiah, Chem. Commun. 2011, 47, 1288–1290.
- β-Cyclodextrin as a photosensitizer carrier: Effect on photophysical properties and chemical reactivity of squaraine dyes, K.T. Arun, D. T. Jayaram, R. R. Avirah, and D. Ramaiah, J. Phys. Chem. B. 2011, 115, 7122–7128
- Study of Cavity Size and Nature of Bridging Units on Recognition of Nucleotides by Cyclophanes, P. P. Neelakandan, P. C. Nandajan, B. Subymol and D. Ramaiah, Org. Biomol. Chem. DOI: 10.1039/C0OB00673D
- Tuning the Photosensitized Singlet Oxygen Generation of Aza- Bodipy Dyes, N. Adarsh, R. R. Avirah, D. Ramaiah, Org. Lett. 2010, 12 (24), 5720–5723.
- Functional Cyclophanes:promising Hosts for Optical Biomolecular Recognition, D. Ramaiah, P. P. Neelakandan, Akhil . K. Nair, R. R. Avirah, Chem. Soc. Rev, 2010, 39, 4158-4168
- Effect of Bridging Units on Photophysical and DNA Binding properties of a few cyclophanes, P. P. Neelakandan, K. S. Sanju, D. Ramaiah, Photochem. Photobiol. 2010, 86, 282-289.
- Direct Evidence on the External Stimuli Induced Dissembly of DNA Through Microscopic Techniques, M.Hariharan, E. Kuruvilla, D. Ramaiah, J. Phys. Chem. Lett. 2010,1,834-838.
- Site Selective interactions: Squarenedyes- Serum Albumin Complexes with Enhanced Flourescence and Triplet yields,V.S Jisha, K. T. Arun, M Hariharan, D. Ramaiah, J. Phys. Chem. B, 2010, 114, 5912-5919.
- Photo Induced DNA Damage Efficiency and Cytotixicity of Novel Viologen Linked Pyrene Conjugate, M. Hariharan, Suneesh C. K, D. Ramaiah, I. Schulz and B. Epe, Chem. Commun. 2010, 46, 2064-2066.
- Fluorescence Ratiometric Selective Recognition of Cu2+ Ions by Dansyl-Naphthalimide Dyads, V. S. Jisha, A. J. Thomas, and D. Ramaiah, J. Org. Chem. 2009, 74, 6667-6673.
- A Supramolecular Cu(II) Metallocyclophane Probe for Guanosine 5-Monophosphate, A. K. Nair, P. P. Neelakandan and D. Ramaiah, Chem. Commun. 2009, 6352–6354.
- Two Different Approaches in Cancer Therapy - Using Photosensitizer and Natural Product, A. Abraham, D. D. Gayathri, T. R. Cibin, and D. Ramaiah, Progress in Biomedical Optics and Imaging - Proceedings of SPIE 7576, 2010, 757603.
- Squaraine - PDT Induces Oxidative Stress in Skin Tumor of Swiss Albino Mice, T. R. Cibin, D. D. Gayathri, D. Ramaiah and A. Abraham, Progress in Biomedical Optics and Imaging - Proceedings of SPIE 7576, 2010, 75761P.
- Development of New Photosensitizers for Photodynamic Therapy, D. Ramaiah and B. Epe, Natur and Geist 2010, 1, 35-37.
- DNA Assisted Long–lived Excimer Formation in a Cyclophane, P. P. Neelakandan, D. Ramaiah, Angew. Chem., Int. Ed. 2008, 47, 8407–8411.
- Acridine – Viologen Dyads: Selective Recognition of Single Strand DNA Through Fluorescence enhancement, E. Kuruvilla, P. C. Nandajan, G. B. Schuster, D. Ramaiah, Org. Lett. 2008, 10, 4295–4298.
- Bis(3,5–diiodo–2,4,6–trihydroxyphenyl)squaraine: A Novel Candidate in Photodynamic Therapy for Skin Cancer Models in Vivo, D. G. Devi, T. R. Cibin, D. Ramaiah, A. Abraham, J. Photochem. Photobiol. B Biol. 2008, 92, 153–159.
- Infrared Absorbing Croconaine Dyes: Synthesis and Metal ion Binding Properties, R. R. Avirah, K. Jyothish and D. Ramaiah, J. Org. Chem. 2008, 73, 274–279.
- Harvesting Infrared Photons with Croconate Dyes, K. Takechi, P. V. Kamat, R. R. Avirah, K. Jyothish and D. Ramaiah, Chem. Mater. 2008, 20, 265–272.
- Encapsulation of Electron Donor–Acceptor Dyads in β–cyclodextrin Cavity: Unusual Planarization and Enhancement in Rate of Electron Transfer Reaction, M. Hariharan, P. P. Neelakandan and D. Ramaiah, J. Phys. Chem. B, 2007, 111, 11940–11947.
- Photochromic Dibenzobarrlenes: Long–lived Triplet Biradical Intermediates, M. C. Sajimon, D. Ramaiah, C. H. Suresh, W. Adam, F. D. Lewis and M. V. George, J. Am. Chem. Soc. 2007, 129, 9439–9445.
- Chiral Supramolecular Assemblies of a Squaraine Dye in Solution and Thin Films: Concentration–, Temperature– and Solvent–induced Chirality Inversion, K. Jyothish, M. Hariharan and D. Ramaiah, Chem. Eur. J. 2007, 13, 5944–5951.
- Selective Interactions of a Few Acridinium Derivatives with Single Strand DNA: Study of Photophysical and DNA Binding Interactions, E. Kuruvilla and D. Ramaiah, J. Phys. Chem. B, 2007, 111, 6549–6556.
- Aggregation Properties of Heavy Atom Substituted Squaraine dyes: Evidence for the Formation of J–type dimer aggregates in aprotic solvents, S. Alex, M. C. Basheer, K. T. Arun, D. Ramaiah and S. Das, J. Phys. Chem. A, 2007, 111, 3226–3230.
- Selective Detection of Tryptophan through Inhibition of Intramolecular Charge–Transfer Interactions in an Aqueous Medium, M. Hariharan, S. C. Karunakaran and D. Ramaiah, Org. Lett. 2007, 9, 417–420.
- Development of Squaraine Dyes for Photodynamic Therapeutical Applications: Synthesis and Study of Electronic Factors in the Dye Formation Reactions, K. Jyothish, R. R. Avirah and D. Ramaiah, ARKIVOC, 2007, 296–310.
- Rearrangement of 1,3–Dipolar Cycloadducts Derived From bis(phenylazo) Stilbene: A DFT Level Mechanistic Investigation, C. H. Suresh, D. Ramaiah and M. V. George, J. Org. Chem. 2007, 72, 367–375.
- Dual Mode Semisquaraine–Based Sensor for Selective Detection of Hg2+ in a Micellar Medium, R. R. Avirah, K. Jyothish and D. Ramaiah, Org. Lett. 2007, 9, 121–124.
- Novel Bifunctional Viologen Linked Pyrene Conjugates: Synthesis and Study of Their Interactions with Nucleosides and DNA, M. Hariharan and D. Ramaiah, J. Phys. Chem. B, 2006, 110, 24678–24686.
- A Supramolecular ON–OFF–ON Fluorescence Assay for Selective Recognition of GTP, P. P. Neelakandan, M. Hariharan and D. Ramaiah, J. Am. Chem. Soc. 2006, 128, 11334.
- Synthesis of New Cholesterol– and Sugar–Anchored Squaraine Dyes: Further Evidence of How Electronic Factors Influence Dye Formation, K. Jyothish, R. R. Avirah and D. Ramaiah, Org. Lett. 2006, 8, 111–114.
- Site–Selective Binding and Dual Mode Recognition of Serum Albumin by a Squaraine Dye, V. S. Jisha, K. T. Arun, M.Hariharan and D. Ramaiah, J. Am. Chem. Soc. 2006, 128, 6024–6025.
- Synthesis of a Novel Cyclic Donor–Acceptor Conjugate for Selective Recognition of ATP, P. P. Neelakandan, M. Hariharan and D. Ramaiah, Org. Lett. 2005, 7, 5765–5768.
- Near–infrared fluorescent probes. Synthesis and Spectroscopic Investigations of a Few Amphiphilic Squaraine Dyes, K. T. Arun and D. Ramaiah, J. Phys. Chem. A 2005, 109, 5571–5578.
- Novel Bifunctional Acridine–Acridinium Conjugates: Synthesis and Study of Their Chromophore Selective Electron Transfer and DNA Binding Properties, E. Kuruvilla, J. Joseph and D. Ramaiah, J. Phys. Chem. B 2005, 109, 21997–22002.
- Photoisomerization of Dibenzobarrelenes–a Facile Route to Polycyclic Synthons, D. Ramaiah, M. Sajimon, J. Joseph and M. V. George, Chem. Soc. Rev. 2005, 34, 48–57.
- Synthesis of Novel Quinaldine–Based Squaraine Dyes: Effect of Substituents and Role of Electronic Factors, K. Jyothish, K.T.Arun and D. Ramaiah, Org. Lett. 2004, 6, 3965–3968.
- Tuning of Intercalation and Electron–Transfer Processes Between DNA and Acridinium Derivatives Through Steric Effects, J. Joseph, E. Kuruvilla, A. T. Achuthan, D. Ramaiah and G. B. Schuster, Bioconjugate Chem. 2004, 15, 1230–1235.
- Squaraine Dyes for Photodynamic Therapy: Mechanism of Cytotoxicity and DNA Damage Induced by Halogenated Squaraine Dyes Plus Light (> 600 nm), D. Ramaiah, I. Eckert, K. T. Arun, L. Weidenfeller and B. Epe, Photochem. Photobiol. 2004, 79, 99–104.
- Design of Photoactivated DNA Oxidizing Agents: Synthesis and Study of Photophysical Properties and DNA Interactions of Novel Viologen–Linked Acridines, J. Joseph, N. V. Eldho, and D. Ramaiah, Chem. Eur. J. 2003, 9, 5926–5935.
- Control of Electron–Transfer and DNA Binding Properties by the Tolyl Spacer Group in Viologen Linked Acridines, J. Joseph, N. V. Eldho, D. Ramaiah, J. Phys. Chem. B, 2003, 107, 4444–4450.
- Squaraine Dyes for Photodynamic Therapy: Study of Their Cytotoxicity and Genotoxicity in Bacteria and Mammalian cells, D. Ramaiah, I. Eckert, K. T. Arun, L. Weidenfeller and B. Epe, Photochem. Photobiol. 2002, 76, 672–677.
- Aggregation Behavior of Halogenated Squaraine Dyes in Buffer, Electrolytes, Organized Media and DNA, K. T. Arun, B. Epe and D. Ramaiah, J. Phys. Chem. B, 2002, 106, 11622–11627.
- Organo–Based Materials for Photonic Applications, S. Das, A. Ajayaghosh, K. R. Gopidas, D. Ramaiah and K. George Thomas, Metals Materials and Processes 2001, 13, 351–360.
- Steric and Conformational Effects on the Photophysical and DNA Binding Properties of Novel Viologen Linked Tolylacridines, N. V. Eldho, J. Joseph and D. Ramaiah, Chem. Lett. 2001, 438–439.
- Biradical Intermediates In the Photoisomerization of Dibenzodihydro–Pentalenofurans to Dibenzosemibullvalenes, M. C.Sajimon, D. Ramaiah, K. G. Thomas and M. V. George, J. Org. Chem. 2001, 66, 3182–3187.
- Steady State Photolysis of Bridgehead Disubstituted Dibenzobarrelenes and Interesting Thermal Isomerization of Their Photoproducts, M. C. Sajimon, D. Ramaiah, M. Muneer, N. P. Rath and M. V. George, J. Photochem. Photobiol. A Chem. 2000, 136, 209–218.
- Substituent Effects on Regioselectivity in the Photorearrangement of a Few Naphthobarrelenes, M. C. Sajimon, D. Ramaiah, S. A. Kumar, N. P. Rath and M. V. George, Tetrahedron 2000, 56, 5421–5428.
- One Pot Synthesis of Acridinylalkanoic Acids and Novel Bisacridines, N. V. Eldho, M. Saminathan and D. Ramaiah, Synth. Commun. 1999, 29, 4007–4014.
- Regioselectivity in Dibenzobarrelene Photorearrangements: Photoproducts Derived From 9–substituted Dibenzobarrelenes, M. Muneer, D. Ramaiah, E. S. Ajithkumar, M. C. Sajimon, N. P. Rath and M. V. George, Acta Cryst. 1999, C55, 996–1000.
- Photoisomerization of Bridgehead Monosubstituted Dibenzobarrelenes and Interesting Thermal Isomerization of Their Photoproducts, M. C. Sajimon, D. Ramaiah, M. Muneer, E. S. Ajithkumar, N. P. Rath and M. V. George, J. Org. Chem. 1999, 64, 6347–6352.
- Structure and Thermal Isomerization of the Adducts Formed in the Reaction of Cyclohexyl Isocyanide with Dimethyl Acetylenedicarboxylate, H. Junjappa, M. K. Saxena, D. Ramaiah, B. B. Loharay, N. P. Rath and M. V. George, J. Org. Chem. 1998, 63, 9801–9805.
- Detection of Thymine [2+2] Photodimer Repair in DNA: Selective Reaction of Potassium Permanganate, D. Ramaiah, T. Koch, H. Orum and G. B. Schuster, Nucl. Acids Res. 1998, 26, 3940–3943.
- Enzymatic Reaction with Unnatural Substrates: DNA Photolyase (Escherichia coli) Recognizes and Reverses Thymine [2+2] Dimers in the DNA Strand of a DNA / PNA Hybrid Duplex, D. Ramaiah, Y. Kan, T. Koch, H. Orum and G. B. Schuster, Proc. Natl. Acad. Sci. USA. 1998, 95, 12902–12905.
- Three Cycloadducts Formed by the Reaction of Bis(phenylazo)stilbene with Acetylenic and Olefinic Dipolarophiles, D. Ramaiah, N. P. Rath and M. V. George, Acta cryst. 1998, C54, 872–875.
- Phototransformations of Bridgehead–Substituted Dibenzobarrelenes. Steady State and Laser Flash Photolysis Studies of 9–benzoyl and 9–(a–hydroxybenzyl)–Substituted Dibenzobarrelenes, S. A. Kumar, D. Ramaiah, N. V. Eldho, S. Das, N. P. Rath and M. V. George, J. Photochem. Photobiol. A: Chem. 1997, 103, 69–73.
- Halogenated Squaraine Dyes as Potential Photochemotherapeutic agents. Synthesis and Study of Photophysical Properties and Quantum Efficiencies of Singlet Oxygen Generation, D. Ramaiah, A. Joy, N. Chandrasekhar, N. V. Eldho, S. Das and M. V. George, Photochem. Photobiol. 1997, 65, 783–790.
- Phototransformations of Bridgehead–Disubstituted Dibenzobarrelenes. Interesting Rearrangements of Dibenzosemi–Bullvalene Intermediates Derived from 9–(hydroxyalkyl)–10–methoxy Substituted Dibenzobarrelenes, D. Ramaiah, S. A. Kumar, C. V. Asokan, T. Mathew, S. Das, N. P. Rath and M. V. George, J. Org. Chem. 1996, 61, 5468–5473.
- Phototransformations of C–benzoylaziridines. Dipolarophilic Trapping of Photogenerated Azomethine Ylides, D. Ramaiah, M. Muneer, K. R. Gopidas, P. K. Das, N. P. Rath and M. V. George, J. Org. Chem. 1996, 61, 4240–4246.
- Photoinduced Electron Transfer Reactions of Amines, Acid Chlorides and Carboxylic acids, S. Das, J. S. D. Kumar, C. S. Rajesh, D. Ramaiah, K. Shivaramayya, T. L. Thanulingam and M. V. George, “New Horizons in Organic Synthesis”, V. Nair and S. Kumar (Eds.) John Wiley & Sons: New Delhi, 1996, 231–239.
- Photochemistry and Photobiology of Furocoumarin Hydroperoxides Derived From Imperatorin: Novel Intercalating photo–Fenton Reagents for Oxidative DNA Modification by Hydroxyl Radicals, W. Adam, M. Berger, J. Cadet, B. Epe, F. Dall’Acqua, S. Frank, D. Ramaiah, S. Raoul, C. R. Saha–Möller and D. Vedaldi, Photochem. Photobiol. 1996, 63, 768–778.
- Photosensitized Formation of 8–hydroxy–2’–deoxyguanosine in Salmon Testes DNA by Furocoumarin Hydroperoxides: A Novel, Intercalating photo–Fenton Reagent for oxidative DNA damage, W. Adam, J. Cadet, B. Epe, F. Dall’Acqua, D. Ramaiah and C.R.Saha Möller, Angew. Chem., Int. Ed. Engl. 1995, 34, 107–110.
- Photochemistry of triethylamine–acid chloride Charge–transfer complexes, S. Das, C. S. Rajesh, T. L. Thanulingam, D. Ramaiah and M. V. George, J. Chem. Soc, Perkin Trans. 2, 1994, 1545–1547.
- DNA Damage Induced by Furocoumarin Hydroperoxides plus UV (360 nm), B. Epe, M. Haring, D. Ramaiah, H. Stopper, M. M. Abou–Elzahab, W. Adam and C. R. Saha–Möller, Carcinogenesis, 1993, 14, 2271–2276.
- Nanosecond and Picosecond Laser Flash Photolysis studies of 2, 2'–Dinitrodiphenyl methanes, T. Mathew, D. Ramaiah, C. P. Joshua, D. Weir and M. V. George, J. Photochem. Photobiol. A: Chem. 1993, 70, 245–251.
- Furocoumarin Dioxetanes and Hydroperoxides as Novel Photobiological DNA Damaging Agents, W. Adam, T. Mosandl, D. Ramaiah, C. R. Saha–Möller, B. Epe and D. Wild, Quimica Nova, 1993, 16, 316–320.
- Interesting Phototransformations of Aziridylmaleates and –Fumarates. Steady–State and Laser Flash Photolysis Studies, D. Ramaiah, K. Ashok, R. Barik, D. Venugopal, N. P. Rath, K. Bhattacharyya, P. K. Das and M. V. George, J. Org. Chem. 1992,57, 6032–6037.
- Physical Aspects of N–benzoylaziridine Photochemistry. Characterization of Azomethine Ylides and Related Photointermediates, D. Ramaiah, D. R. Cyr, R. Barik, K. R. Gopidas, P. K. Das and M. V. George, J. Phys. Chem. 1992, 96, 1271–1278.
- Structure of the Photoproduct From the Cycloadduct of 2,3–diphenyl–2,3–epoxy–1–indanone and dibenzoylacetylene, D. Ramaiah, W. H. Pearson, P. K. Das and M. V. George, Res. Chem. Intermediates 1992, 18, 105–113.
- Phototransformations of Benzopyranols and Related Systems. Steady–State and Laser Flash Photolysis Studies, D. Ramaiah, P. M. Scaria, D. R. Cyr, P. K. Das and M. V. George, J. Org. Chem. 1988, 53, 2016–2022.
- Phototransformations of Epoxyindanone Adducts. Steady–State and Laser Flash Photolysis Studies, D. Ramaiah, S. Rajadurai, P. K. Das and M. V. George, J. Org. Chem. 1987, 52, 1082–1089.
- Structural Relaxation in the 1,2,6–trimethyl–3,5–diphenyl–4–pyridone triplet, S. Rajadurai, D. Ramaiah, P. K. Das and M.V.George, J. Photochem. Photobiol. A: Chem. 1987, 40, 341–354.
- Flash Photolysis Studies of Nitrile Imines and Related Intermediates Photogenerated from Sydnones and Tetrazoles in Fluid Solutions, K. Bhattacharyya, D. Ramaiah, P. K. Das and M. V. George, J. Photochem. 1987, 36, 63–84.
- A Laser Flash Photolysis Study of 2,6–dimethyl–3,5–diphenyl–4–pyrone and Related Chromones. Evidence for Triplet State Structural Relaxation from Quenching Behaviors, K. Bhattacharyya, D. Ramaiah, P. K. Das and M. V. George, J. Phys. Chem. 1986, 90, 5984–5988.
- Physical Aspects of Benzoylaziridine Photochemistry. Spectral and Kinetic Behaviors of Azomethine Ylides and Related Photointermediates, K. Bhattacharyya, D. Ramaiah, P. K. Das and M. V. George, J. Phys. Chem. 1986, 90, 3221–3229.
- Photochemistry of Aromatic α,β–epoxy ketones. Substituent Effects on Oxirane Ring Opening and Related Ylide behavior, C.V. Kumar, D. Ramaiah, P. K. Das and M. V. George, J. Org. Chem. 1985, 50, 2818–2825.