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Winning NIIST bioprocess for white pepper production
Scientists of NIIST have invented and patented a simpler, more cost-effective and pollution-free microbial technology that ensures...
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A virtual environment for testing casting process design
Virtual Casting-a software for simulation of casting solidification and defect prediction: Copy-righted and licensed to industry and acadamia more..
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Design and synthesis of photoactive molecules
Organized assembly of molecules through non-covalent interactions is a powerful tool for generating defined molecular architectures.
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Integrated Spice processing Unit at Bidang, Sikkim
NIIST scientists assisted the Sikkim State Horticulture Department in setting up the fresh ginger, turmeric and large cardamom..
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- Selected Publications
Selected Publications
- Donor-Acceptor Substituted Butadiene Based Photoresponsive Soft Materials.
Suresh Das, Shinto Varghese and N. S. Saleesh Kumar.
Langmuir (Invited Feature Article) DOI: 10.1021/la901962k. - Correlation between Solid-State Photophysical Properties and Molecular Packing in a Series of Indane-1, 3-dione Containing Butadiene Derivatives.
N. S. Saleesh Kumar, Shinto Varghese, C. H. Suresh, Nigam P. Rath and Suresh Das.
J. Phys. Chem. C, 2009, 113 , 11927 (Hiroshi Masuhara Festschrift – Invited Article).
Highlighted in Noteworthy Chemistry, ACS, August 17th , 2009. - Tuning Microstructures in Organogels: Gelation and Spectroscopic Properties of Mono- and Bis-cholesterol-Linked Diphenylbutadiene Derivatives.
Shibu Abraham, Ratheesh K. Vijayaraghavan, and Suresh Das.
Langmuir, 2009, 25, 8507.
Invited Article in Special Issue on ‘Molecular gels and other materials with self assembled fibrillar networks’. - Formation of Highly Luminescent Supramolecular Architectures Possessing Columnar Order from Octupolar Oxadiazole Derivatives: Hierarchical Self-Assembly from Nanospheres to Fibrous Gels.
Shinto Varghese, N. S. Saleesh Kumar, Anjali Krishna, D. S. Shankar Rao, S. Krishna Prasad, and Suresh Das.
Adv. Funct Mater, 2009, 19, 2064. - Indane-1,3-dione and cholesterol containing butadiene derivatives: Photoresponsive liquid crystalline glasses for imaging applications.
N. S. Saleesh Kumar, Shibu Abraham, K. Vijayaraghavan Ratheesh, Nobuyuki Tamaoki,Seiichi Furumi and Suresh Das
J. Photochem. Photobiol. A: Chem. 2009 DOI: 10.1016/j.jphotochem.2008. 11.009.
(Invited article in special issue in honour of Prof. Haruo Inoue). - Photoresponsive Glass-Forming Butadiene-Based Chiral Liquid Crystals with Circularly Polarized Photoluminescence.
R. K. Vijayaraghavan, S. Abraham, H. Akiyama, S. Furumi, N. Tamaoki, Suresh Das.
Adv. Funct. Mater. 2008, 18, 2510. - Manifestation of a Chiral Smectic C Phase in Diphenylbutadiene-Cored Bolaamphiphilic Sugars.
Suresh Das, N. Gopinathan, S. Abraham, N. Jayaraman, M. K. Singh, S. K. Prasad, D. S. S. Rao.
Adv. Funct. Mater 2008 18, 1632. - Solid State Optical Properties of 4-Alkoxy-pyridine Butadiene Derivatives: Reversible Thermal Switching of Luminescence.
N. S. S. Kumar, S. Varghese, N. P. Rath, Suresh Das.
J. Phys. Chem. C 2008, 112, 8429. - Molecular Packing and Solid-State Fluorescence of Alkoxy-Cyano Substituted Diphenylbutadienes:Structure of the Luminescent Aggregates.
R. Davis, N. S. S. Kumar, S. Abraham, C. H. Suresh, N. P. Rath, N. Tamaoki, Suresh Das.
J. Phys. Chem. C 2008, 112, 2137. - Aggregation and photoresponsive behavior of azobenzene-oligomethylene-glycopyranoside bolaamphiphiles.
G. Narayan, N. S. S. Kumar, S. Paul, O. Srinivas, N. Jayaraman, Suresh Das.
J. Photochem. Photobiol. A, 2007, 189, 405. - 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 Suresh Das.
J. Phys. Chem. A 2007, 111, 3226. - Design and synthesis of squaraine based near infrared fluorescent probes.
M. C. Basheer, U. Santhosh, S. Alex, K. G. Thomas, C. H. Suresh and Suresh Das.
Tetrahedron, 2007, 63, 1617. - Hierarchical Self-Assembly into Photoresponsive Vesicles and Gels by Donor-Acceptor Substituted Butadiene Amphiphiles.
N. S. S. Kumar, S. Varghese, G. Narayan and Suresh Das.
Angew. Chem. Int. Ed. 2006, 45, 6317. - Reversible Thermal and Photochemical Switching of Liquid Crystalline Phases and Luminescence in Diphenylbutadiene-Based Dimesogens.
S. Abraham, V. A. Mallia, K. V. Ratheesh, N. Tamaoki, and Suresh Das.
J. Am. Chem. Soc. 2006 , 128, 7692. - A Squaraine-Based Chemosensor for Hg2+ and Pb2+.
M. C. Basheer, A. Saji, K. George Thomas, Cherumuttathu H. Suresh, Suresh Das.
Tetrahedron 2006, 62, 605. - Fluorescent Aggregates of 1-(p-Butyloxyphenyl)-4-(p-cyanophenyl)buta-1E,3E- diene:Temperature Sensing and Photoimaging Applications.
R. Davis and Suresh Das.
J. Fluorescence 2005, 15, 749. - Observation of a Chiral Smectic Phase in Azobenzene-Linked Bolaamphiphiles Containing Free Sugars.
S. Abraham, S. Paul, G. Narayan, S. K. Prasad, D. S. S. Rao, N. Jayaraman and Suresh Das.
Adv. Funct. Mater. 2005, 15, 1579. - Dye Sensitization of Nanocrystalline TiO2 : Enhanced Efficiency of Unsymmetrical Versus Symmetrical Squaraine Dyes.
S. Alex, U. Santhosh, Suresh Das.
J Photochem. Photobiol. A: Chem., 2005, 172, 63. - Observation of a Non-Conventional Horner-Wadsworth-Emmons Olefination Product and the Effect of the Lateral Ethyl Substitution on Their Solid State Fluorescence.
Riju Davis, Shibu Abraham, Nigam P. Rath and Suresh Das.
New. J. Chem. 2004, 28, 1368. - Butadienes as Novel Photochromes for Colour Tuning of Cholesteric Glasses: Influence of Microscopic Molecular Reorganization within the Helical Structure.
Riju Davis, V. Ajay Mallia, Suresh Das and Nobuyuki Tamaoki.
Adv. Funct. Mater.14, 000, 2004, 14, 743. - Synthesis and Study of Novel Azopyridine-Containing Hexacatenar Silver Mesogens.
P. K. Sudhadevi Antharjanam, V. Ajay Mallia, and Suresh Das.
Liq. Cryst. 2004, 31, 713. - Thermally Reversible Fluorescent Polymorphs of Alkoxy-Cyano Substituted Diphenylbutadiene:Role of Crystal Packing in Solid State Fluorescence.
Riju Davis, N. P. Rath and Suresh Das.
Chem. Commun. 2004, 1, 74. - Synthesis, Fluorescence and Photoisomerization Studies of Azobenzene Functionalized Poly(Alkylaryl Ether Dendrimers.
J. Nithyanandhan, N. Jayaraman, R. Davis and Suresh Das.
Chem. Eur. J. 2004, 10, 689. - Review: Photoresponsive Liquid Crystals.
Suresh Das and Riju Davis.
PINSA 2003, 69A, 109 - Photocatalytic Degradation of Wastewater Pollutants: Titanium Dioxide Mediated Degradation of Methyl Orange and b-Naphthol Orange.
P. K. S. Antharjanam, R. Philip and Suresh Das.
Annali di Chimica 2003, 93, 719. - Reversible Photochemical Phase Transition Behaviour of Alkoxycyano Substituted Diphenylbutadiene Liquid Crystals
Riju Davis, V. A. Mallia and Suresh Das.
Chem. Mater., 2003, 15, 1057. - Synthesis and Studies of Some Substituted 4-phenyl,4’-azopyridine Containing Hydrogen Bonded Supramolecular Mesogens.
V. Ajay Mallia, P. K. S. Antharjanam and Suresh Das.
Liq. Cryst. 2003, 30, 135. - Novel Azopyridine-Containing Silver Mesogens; Synthesis, Liquid Crystalline and Photophysical Properties.
P. K. S. Antharjanam, V. A. Mallia and Suresh Das.
Chem. Mater. 2002, 14, 2687 - Organo-Based Materials for Photonic Applications.
Suresh Das, A. Ajayaghosh, K. R. Gopidas, D. Ramaiah and K. G. Thomas.
Metals Materials and Processes 2001, 13, 351. - Chiral Nematic Glasses from Novel Hydrogen Bonded Mesogens.
V. Ajay Mallia, P. K. Sudhadevi Antharjanam and Suresh Das.
Chem. Lett. 2001,752. - Intramolecular Charge Transfer and Photochemical Isomerization in Donor/ Acceptor- Substituted Butadienes.
Riju Davis, Suresh Das, Mathew George, S. Druzhinin and K. A. Zachariasse.
J. Phys. Chem. A 2001,105, 4790. - Synthesis and Studies of Some Cholest-5-en-3-ol-(3b) [4-phenylpyridyl]carbonate-Containing Supramolecular Hydrogen- Bonded Mesogens.
V. Ajay Mallia and Suresh Das.
Liq. Cryst. 2001, 28, 259. - Electron Transfer Reactions of Amines, Suresh Das and V. Suresh, Chapter 2.1.7 Vol.2 in “Electron Transfer in Chemistry Vol.1-5”.
V. Balzani and J. Mattay (Eds.), WILEY-VCH, Chapter II, 2001, 379.
- Synthesis and Photoswitching Properties of Some Cholesterol Based Liquid Crystals.
Mathew George, V. Ajay Mallia, P. K. S. Antharjanam, M. Saminathan and Suresh Das.
Mol. Cryst. Liq. Cryst. 2000, 450, 125. - Triplet Excited State Properties of the Monomers and Aggregate of Bis(2,4,6- trihydroxyphenyl)squaraine)
U. Santhosh and Suresh Das.
J. Phys. Chem. A, 2000, 104 (9), pp 1842–1847. - Syntheses and Spectroscopic Studies of Novel Chlorins With Fused Quinoxaline or Benzimidazole Ring Systems and the Related Dimers with Extended Conjugation.
Andrei N. Kozyrev, V. Suresh, Suresh Das, Mathias O. Senge, Masayuki Shibata, Thomas J. Dougherty and Ravindra K. Pandey.
Tetrahedron 2000, 56, 3353. - Free Radical Induced Oxidation of the Azo Dye Acid Yellow 9: Kinetics and Reaction Mechanism.
Suresh Das, Prashant V. Kamat, Sarojini Padmaja and Stephen A. Madison.
J. Chem. Soc. Perkin Trans. 2 1999, 1219. - Nonlinear Optical Properties of Some Cholesterol Based Liquid Crystals.
Mathew George and Suresh Das.
Chem. Lett. 1999, 10, 1081. - Can H-aggregates serve as Light harvesting Antennae? Triplet-Triplet energy transfer between Excited aggregates and monomer Thionine in Aerosol-OT System.
Suresh Das and P. V. Kamat.
J. Phys. Chem. B, 1999, 103, 209. - Controlling Dye (Merocyanine-540) Aggregation on Nanostructured TiO2 films. An organized assembly Approach for enhancing the Efficiency of Photosensitization.
Ali Chami Khazraji, Surat Hotchandani , Suresh Das, Prashant V. Kamat.
J. Phys. Chem. B 1999, 103, 4693. - Photochemical Behaviour of Anthraquinone Based Textile Dye (Uniblue-A) Bound to Cellulose Powder and cotton Fabric.
Prashant V. Kamat, Suresh Das, Sarojini Padmaja and Stephen A. Madison, Res.
Chem. Intermed. 1999, 25, 915. - Photochemical Phase Transition in Hydrogen Bonded Liquid Crystals.
V. Ajay Mallia, Mathew George, and Suresh Das.
Chem. Mater., 1999, 11, 207 - Photophysical and Photochemical Properties of Squaraines in Homogeneous and Heterogeneous Media.
Suresh Das, K. George Thomas and M. V. George, Chapter in the book entitled “ Molecular and Supramolecular Photochemistry”, V. Ramamurthy and K. S. Schanze (Eds.).
Marcel Dekker Inc., NY, 1997, 467. - Spectral Characterization of the One-Electron Oxidation Product of cis- Bis(isothiocyanito)bis (4,4′-dicarboxylato-2,2′-bipyridyl) Ruthenium(II) Complex Using Pulse Radiolysis.
Suresh Das and P. V. Kamat.
J. Phys. Chem. B, 1998, 102, 8954 - Transient Absorption Studies on 3,6-Dibromopolyvinylcarbozole and Its Model Compounds.
R. Anandhi, C. S. Rajesh, Suresh Das and S. Umapathy.
J. Photochem. Photobiol., A. 1997, 106, 135. - Phototransformations of Bridgehead-Substituted Dibenzobarrelenes. Steady State and Laser Flash Photolysis Studies of 9-Benzoyl-and (a-hydroxybenzyl)-Substituted Dibenzobarrelenes.
S. Ajayakumar, D. Ramaiah, N. V. Eldho, Suresh Das, N. P. Rath, M. V. George.
J. Photochem. Photobiol., A. 1997, 103, 69. - Photoelectron Transfer Induced Decarboxylation of Substituted Carboxylic acids Across a Liquid/liquid Interface.
C. S. Rajesh, T. L. Thanulingam and Suresh Das.
Tetrahedron 1997, 53, 16817. - Review: Photoinduced Electron Transfer Reactions of Amines. Synthetic Application and Mechanistic Studies.
J. S. Dileep Kumar and Suresh Das.
Res. Chem. Intermed. 1997, 23, 755. - Photocatalytic Degradation of Waste Water Pollutants: Titanium Dioxide–Mediated Oxidation of a Textile Dye, Acid Blue-40.
M. Muneer, R. Philip and Suresh Das,
Res. Chem. Intermed. 1997, 23, 233. - Squaraine Based Sensor for the Selective Detection of Transition and Other Metal Ions in Aqueous Media.
K. George Thomas, K. J. Thomas, Suresh Das and M. V. George.
Chem. Commun. 1997, 597. - Photochemistry of Squaraine Dyes 10. Excited State Properties and Photosensitization Behaviour of an IR Sensitive Cationic Squaraine Dye.
K. George Thomas, K. J. Thomas, Suresh Das, M. V. George, D. Liu and P. V. Kamat.
J. Chem. Soc. Faraday Trans. 1997, 92, 4913. - Picosecond Dynamics of an IR Sensitive Squaraine Dye. Role of Singlet and Triplet Excited States in the Photoionization of TiO2 Nanoclusters.
D. Liu, P. V. Kamat, K. George Thomas, K. J. Thomas, Suresh Das and M. V. George.
J. Chem. Phys. 1997, 106, 6404. - 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, Suresh Das and M. V. George.
Photochem. Photobiol. 1997, 65, 783. - Zwitterionic Dye–Based Conducting Polymers. Synthesis and Optical Properties of Pyrrole-Derived Polysquaraines.
A. Ajayaghosh, C.R. Chenthamarakshan, Suresh Das and M. V. George.
Chem. Mater. 1997, 9, 644. - Excited State Behaviour of Fullero-Phenylpyrrolidines.
P. V. Kamat, D. Guldi, Di Liu, K. George Thomas, V. Biju, Suresh Das and M. V. George.
In Fullerenes, K. Kadish and R. Ruoff (Eds.),The Electrochemical Society, Pennington, 1997, 4, 122. - Photoinduced Electron Transfer Reactions of Amines, Acid Chlorides and Carboxylic Acids.
Suresh Das, J. S. Dileep Kumar, C. S. Rajesh, D. Ramaiah,K. Shivaramayya, T. L. Thanulingam and M. V.
George, New Horizons in Organic Synthesis, V. Nair and Sasikumar (Eds.), Newage Publishers 1996, - Phototransformations of Bridgehead Disubstituted Dibenzobarrelenes. Interesting Rearrangements of Dibenzosemibullvalene Intermediates Derived from 9-Hydroxyalkyl-10-methoxy Substituted Dibenzobarrelenes.
D. Ramaiah, S. A. Kumar, C. V. Asokan, T. Mathew, Suresh Das, N. P. Rath and M. V. George.
J. Org. Chem. 1996, 61, 5468. - Aggregation Behaviour of Water Soluble Bis(benzothiazolylidene)squaraine Derivatives in Aqueous Media.
Suresh Das, K. George Thomas, K. J. Thomas, V. Madhavan, D. Liu, P. V. Kamat and M. V. George.
J. Phys. Chem. 1996, 100, 17310. - Photochemistry of Squaraine Dyes: Excited Triplet State and Redox Properties of Crown Ether Squaraines.
G. Sauve, P. V. Kamat, K. George Thomas, K. J. Thomas, Suresh Das and M. V. George.
J. Phys. Chem. 1996, 100, 2117. - Phototransformations of 9-Ethyl-Substituted Dibenzobarrelene. Oxygen-Trapping of Diradical Intermediates.
Thomas Mathew, S. A. Kumar, Suresh Das, N. P. Rath and M. V. George.
J. Photochem. Photobiol. A 1996, 95, 137. - Formation of Lactams via Photoelectron Transfer Catalyzed Reactions of N- Allylamines with a, b-Unsaturated Esters.
Suresh Das, J. S. Dileep Kumar, K. Shivaramayya and M. V. George.
Tetrahedron 1996, 52, 3425. - Photoelectron Transfer Catalyzed Reactions of Amines with a, b-Unsaturated Esters and Acrylonitrile Using Different Sensitizers.
Suresh Das, J. S. Dileep Kumar, K. Shivaramayya and M. V. George.
J. Photochem. Photobiol. A. 1996, 97, 139. - Synthesis and Characterization of Some Donor-Acceptor Substituted Butadienes for Second Harmonic Generation.
Suresh Das, Mathew George, Thomas Mathew and C. V. Asokan.
J. Chem. Soc. Perkin Trans. 2 1996, 731. - Two Photoproducts Derived From 11,12-Dibenzoyl-9,10-Dihydro-9,10-Dimethoxy-9,10-Ethenoanthracene.
S. Ajayakumar, T. Mathew, Suresh Das, N. P. Rath and M. V. George.
Acta. Cryst. 1996, C52, 2797. - A Photoproduct Derived from 9-Benzyl-Substituted Dibenzobarrelene, Thomas Mathew.
S. A. Kumar, Suresh Das, N. P. Rath, and M. V. George.
Acta Cryst. 1996, C52, 942 - Crown Ether Derivatives of Squaraine: New Near-Infrared Absorbing, Redox- Active Fluoroionophores for Alkali Metal Recogination.
Suresh Das, K. George Thomas, K. J. Thomas, I. Bedja, P. V. Kamat and M. V. George.
Anal. Proc. 1995, 32, 213. - Anthraquinone-Photocatalyzed Addition of Amines to a,b-Unsaturated Esters. A Novel Route to Indolizidine and Pyrrolizidine Ring Systems.
Suresh Das, J. S. Dileepkumar, K. Shivaramayya and M. V. George.
J. Chem. Soc. Perkin Trans. 1 1995, 1797. - Photophysical Studies of Polystyrene Covalently Bound to Aminoacridine.
Suresh Das, C. S. Rajesh, C. H. Suresh, K. George Thomas, A. Ajayaghosh, C. Nasr, P. V. Kamat and M.V. George.
Macromolecules 1995, 28, 4249. - Electrochemical and Photoelectrochemical Properties of Monoaza-15-Crown Ether Linked Cyanine Dyes:Photosensitization of Nanocrystalline SnO2 Films.
C. Nasr, S. Hotchandani, P. V. Kamat, Suresh Das, K. George Thomas, and M. V. George.
Langmuir 1995, 11, 1777. - Photorearrangements of Bridgehead Disubstituted Dibenzobarrelene Esters and Lactones.
S. Ajayakumar, C. S. Rajesh, Suresh Das, N. P. Rath and M. V. George.
J. Photochem. Photobiol., A: Chem. 1995, 86, 177. - Phototransformation of Di-O-ethyl-S,S-terephthaloyl Dixanthate and Terephthaloic Bi(piperidinedithiocarbamic Anhydride).
M. Muneer, A. Ajayaghosh, Suresh Das and M. V. George.
J. Photochem. Photobiol., A. 1995, 86, 155. - Photochemical Electron Transfer Across a Liquid / Liquid Interface: Methylene Blue Sensitized Decarboxylation of Substituted Carboxylic Acids.
Suresh Das, T. L. Thanulingam, C. S. Rajesh and M. V. George.
Tetrahedron Lett. 1995, 36, 1337. - Photochemistry of Triethylamine-Acid Chloride Charge-Transfer Complexes.
Suresh Das, C. S. Rajesh, T. L. Thanulingam, D. Ramaiah and M. V. George.
J. Chem. Soc. Perkin Trans. 2, 1994, 1545. - Photochemistry of Squaraine Dyes. 8. Photophysical Properties of Crown Ether Squaraine Fluoroionophores and their Metal Ion Complexes.
Suresh Das, K. George Thomas, K. J. Thomas, P. V. Kamat and M. V. George.
J. Phys. Chem. 1994, 98, 9291. - Interaction of Semiconductor Colloids With J-Aggregates of a Squaraine Dye and its Role in Sensitizing Nanocrystalline Semiconductor Colloids.
S. Hotchandani, Suresh Das, K. George Thomas, M. V. George and P. V. Kamat.
Res. Chem. Intermed. 1994, 20, 927. - Cation Binding and Photophysical Properties of Monoaza-15-Crown-Ether Linked Cyanine Dye.
K. J. Thomas, K. George Thomas, T. K. Manoj Kumar, Suresh Das and M. V. George.
Proc. Indian Acad. Sci. (Chem. Sci). 1994, 106, 1375. - Photocatalytic Degradation of Wastewater Pollutants. Titanium Dioxide-Mediated Oxidation of Polynuclear Aromatic Hydrocarbons.
Suresh Das, M. Muneer and K. R. Gopidas.
J. Photochem. Photobiol., A. 1994, 77, 83. - Photocatalyzed Multiple Additions of Amines to a,b-Unsaturated Esters and Nitriles.
Suresh Das, J. S. Dileep Kumar, K. George Thomas and M. V. George.
J. Org. Chem. 1994, 59, 628. - Photosensitizing Properties of Squaraine Dyes.
Suresh Das, K. George Thomas, P. V. Kamat and M. V. George.
Proc. Indian Acad. Sci. (Chem. Sci.) 1993, 105, 513. - Photocrosslinking Studies of S-Acryloyl O-Ethyl Xanthate Copolymers.
A. Ajayaghosh, Suresh Das, P. V. Kamat, P. K. Das and M. V. George.
Polymer 1993, 34, 3605. - Photochemistry of Squaraine Dyes. 5. Aggregation of Bis(2,4-dihydroxy-phenyl)squaraine and Bis(2,4,6-tri-hydroxyphenyl)squaraine and their Photodissociation in Acetonitrile Solutions.
Suresh Das, T. L. Thanulingam, K. George Thomas, P. V. Kamat and M. V. George.
J. Phys. Chem. 1993, 97, 13620. - Photochemistry of Squaraine Dyes. 6. Solvent Hydrogen Bonding Effects on the Photophysical Properties of Bis(benzothiazolidene)squaraines.
Suresh Das, K. George Thomas, R. Ramanathan, M. V. George and P. V. Kamat,
J. Phys. Chem. 1993, 97, 13625. - Excited State Properties and Photosensitization Behaviour of Bis(2,4-dihydroxyphenyl)squaraine,
P. V. Kamat, S. Hotchandani, M. de Lind, K. George Thomas, Suresh Das and M. V. George.
J. Chem. Soc. Faraday Trans. 1993, 89, 2397. - A Novel Photorearrangement of a Bridgehead-Disubstituted Dibenzobarrelene. Steady State and Laser Flash Photolysis Studies of a 9-Hydroxymethyl-10-methyl-dibenzobarrelene.
S. A. Kumar, C. V. Asokan, Suresh Das, J. A. Wilbur, N. P. Rath and M. V. George.
J. Photochem. Photobiol., A. 1993, 71, 27. - A New Photodegradable Polyamide Containing o-Nitrobenzyl Chromophore: Steady State and Laser Flash Photolysis Studies.
T. Mathew, A. Ajayaghosh, Suresh Das and P. V. Kamat.
J. Photochem. Photobiol., A. 1993, 71, 181. - S-Benzoyl O-Ethyl Xanthate as a New Photoinitiator: Photopolymerisation and Laser-Flash Studies.
A. Ajayaghosh, Suresh Das and M. V. George,
J. Polym. Sci. Polym. Chem. 1993, 31, 653. - Polymer-Bound S-Benzoyl O-Ethyl Xanthate. A New Heterogeneous Photoinitiator.
A. Ajayaghosh, R. Francis and Suresh Das.
Eur. Polym. J. 1993, 29, 63. - Photophysics and Photochemistry of Squaraine Dyes: 3. Excited State Properties and Poly(4-vinylpyridine)-Induced Fluorescence Enhancement of Bis(2,4,6-trihydroxyphenyl)squaraine.
Suresh Das, P. V. Kamat, B. De la Barre, K. George Thomas, A. Ajayaghosh and M. V. George,
J. Phys. Chem. 1992, 96, 10327. - Fluorescence Enhancement of Bis(2,4,6-trihydroxyphenyl)-squaraine Anion by 2:1 Host-Guest Complexation with b-Cyclodextrin.
Suresh Das, K. George Thomas, M. V. George and P. V. Kamat.
J. Chem. Soc. Faraday Trans. 1992, 88, 3419. - Photografting of Acrylic Monomers on Polystyrene Support.
A. Ajayaghosh and Suresh Das.
J. Appl. Polym. Sci. 1992, 45, 1617 - Photochemistry of Squaraine Dyes: Excited States and Reduced and Oxidized Forms of 4-(4-Acetyl-3,5-dimethyl- pyrrolium-2-ylidene)-2-(4-acetyl-3,5-dimethylpyrrol-2-yl)-3-oxocyclobut-2-ene- 1-olate.
B. Patrick, M. V. George, P. V. Kamat, Suresh Das and K. George Thomas.
J. Chem. Soc. Faraday Trans. 1992, 88, 671. - Photochemistry of Squaraine Dyes. 1. Excited Singlet, Triplet and Redox States of Bis(4-dimethylaminophenyl)squaraine and Bis(4-dimethylamino-2-hydroxyphenyl)squaraine.
P. V. Kamat, Suresh Das, K. George Thomas and M. V. George.
J. Phys. Chem. 1992, 96, 195. - Photocatalytic Degradation of Waste-Water Pollutants: Titanium Dioxide-Mediated Oxidation of Methyl Vinyl Ketone.
M. Muneer, Suresh Das, V. B. Manilal and A. Haridas.
J. Photochem. Photobiol. A. 1992, 63, 107. - Photophysics and Photochemistry of New Verdin Compounds.
R. S. Becker, Suresh Das, S. Chakravorti and A. R. Morgan.
J. Photochem. Photobiol. B. 1991, 10, 345. - Ultrafast Photochemical Events Associated with the Photosensitization Properties of a Squaraine Dye.
P. V. Kamat, Suresh Das, K. George Thomas and M. V. George.
Chem. Phys. Lett. 1991, 178, 75. - Novel Phototransformations of Bridgeheaded-Dimethyl-Substituted Dibenzobarrelene. Structure of the Photoproducts.
C. V. Asokan, S. A. Kumar, Suresh Das, N. P. Nath and M. V. George.
J. Org. Chem. 1991, 56, 5890. - The Photosensitizers Benzophenoxazine and Thiazines: Comprehensive Investigation of Photophysical and Photochemical Properties.
R. S. Becker, S. Chakravorti and Suresh Das.
Photochem. Photobiol. 1990, 51, 533. - Unique Optical Changes in Cholesteric Liquid Crystals Using Guest Mediated Laser Beam Excitation.
R. S. Becker, S. Chakravorti and Suresh Das.
J. Chem. Phys. 1989, 90, 2082. - Laser Flash Photolysis Study of Triplet States in Aligned Liquid Crystalline Media.
Suresh Das, C. Lenoble and R. S. Becker.
J. Am. Chem. Soc. 1987, 109, 4349. - The Production of Superoxide Radical Anion by the OH Radical Induced Oxidation of Trimethylamine in Oxygenated Aqueous Solution. The Kinetics of Hydrolysis of (Hydroxymethyl) dimethylamine.
Suresh Das, M. N. Schuchmann, H.-P. Schuchmann and C. von Sonntag.
Chem. Ber. 1987, 120, 319. - Aspects of HO2? Elimination Reaction from Organic Peroxyl Radicals: Some Recent Examples.
Suresh Das, O. J. Mieden, X.-M. Pan, M. Pepas, M. N. Schuchmann, H. P. Schuchmann, C. von Sonntag and H. Zegota. in Oxygen Radicals in Biology and Medicine M. G. Simic, K. A. Taylor, J. F. Ward and C. von Sonntag (Eds.), Plenum Press, NY, 1988, pp.55-58.
- Photochemistry of Copper(II)-Poly(acrylic acid) Complexes: Photogeneration and Photolysis of an Alkyl-Copper Intermediate.
Suresh Das and G. Ferraudi.
Inorg. Chem. 1986, 25, 1066. - The Oxidation of Trimethylamine by OH Radicals in Aqueous Solutions as Studied by Pulse Radiolysis,ESR, Product Analysis. The Reactions of the Alkylamine Radicals cation, Aminoalkyl Radicals and the Protonated aminoalkyl Radical.
Suresh Das and C. von Sonntag.
Z. Naturforsch. 1986, 41b, 505 - Uracil Derivatives: Sites and Kinetics of Protonation of the Radical Anions and the UV Spectra of the C(5) and C(6) H-Atom Adducts
J. Deeble, Suresh Das and C. von Sonntag.
J. Phys. Chem. 1985, 89, 5784. - Site of the H Atom Attack on Uracil and its Derivatives in Aqueous Solution.
Suresh Das, D. J. Deeble and C. von Sonntag.
Z. Naturforsch. 1985, 40c, 292. - Pulse Radiolytic Studies on Uracil and Uracil Derivatives. Protonation of their Electron Adducts at Oxygen and at Carbon.
Suresh Das, D. J. Deeble, M. N. Schuchmann and C. von Sonntag.
Int. J. Radiat. Biol. 1984, 46, 7. - Ligand Decomposition in the Photolysis of Copper(11)Amino-Acid Complexes in Aqueous Solutions,
Suresh Das, G. R. A. Johnson, N. B. Nazhat and R. S. Nazhat,
J. Chem. Soc. Faraday Trans. 1984, 80, 2759. - Photolysis of Copper(11)Oxalato Complexes in Aqueous Solutions. Identification and Reactions of an Intermediate,
Suresh Das and G. R. A. Johnson,
J. Chem. Soc. Faraday Trans. 1980, 76, 1779. - Photochemical Studies on Basic Aqueous Solutions of Some Nucleic Acid Bases.
S. K. Ismail and Suresh Das,
Al. Mustansiriyah J. Sci. 1977, 2, 155 - U. V. Photolysis of some Nucleic Acid Bases in Aqueous Solutions in the Presence of Ammonium Nitrate.
S. K. Ismail and Suresh Das,
Al. Mustansiriyah J. Sci. 1977, 2, 167. - The Effect of the Presence of Ferric Ions on the Photolysis of Aqueous Solutions of Some Purines and Pyrimidines.
S. K. Ismail and Suresh Das.
Al. Mustansiriyah J. Sci. 1977, 2, 179