Browse by Fellow

Pandikumar, Alagarsamy ; Ramaraj, Ramasamy (2012) Titanium dioxide-gold nanocomposite materials embedded in silicate sol-gel film catalyst for simultaneous photodegradation of hexavalent chromium and methylene blue Journal of Hazardous Materials, 203-204 . pp. 244-250. ISSN 0304-3894

Suresh, S. ; Pandikumar, A. ; Murugesan, S. ; Ramaraj, R. ; Raja, Samuel Paul (2011) Photovoltaic performance of solid-state solar cells based on ZnO nanosheets sensitized with low-cost metal-free organic dye Solar Energy, 85 (9). pp. 1787-1793. ISSN 0038-092X

Thangavel, Subramani ; Ramaraj, Ramasamy (2011) Electroless synthesis of multibranched gold nanostructures encapsulated by poly(o-phenylenediamine) in Nafion Journal of Colloid and Interface Science, 355 (2). pp. 293-299. ISSN 0021-9797

Pandikumar, Alagarsamy ; Ramaraj, Ramasamy (2011) Aminosilicate sol-gel embedded core-shell (TiO₂-Au)nps nanomaterials modified electrode for the electrochemical detection of nitric oxide Indian Journal of Chemistry, 50 . pp. 1388-1393. ISSN 0019-5103

Swarnalatha, K. ; Rajkumar, E. ; Rajagopal, S. ; Ramaraj, R. ; Sadhiya Banu, I. ; Ramamurthy, P. (2011) Proton coupled electron transfer reaction of phenols with excited state ruthenium(II) - polypyridyl complexes Journal of Physical Organic Chemistry, 24 (1). pp. 14-21. ISSN 0894-3230

Ilanchelian, Malaichamy ; Ramaraj, Ramasamy (2011) Binding interactions of Toluidine Blue O with escherichia coli DNA: formation of bridged structure Journal of Fluorescence, 21 (4). pp. 1439-1453. ISSN 1053-0509

Maduraiveeran, Govindhan ; Ramaraj, Ramasamy (2011) Silver nanoparticles embedded in amine-functionalized silicate sol-gel network assembly for sensing cysteine, adenosine and NADH Journal of Nanoparticle Research, 13 (9). pp. 4267-4276. ISSN 1388-0764

Maduraiveeran, Govindhan ; Manivasakan, Palanisamy ; Ramaraj, Ramasamy (2011) Silver nanoparticles embedded three dimensional silicate sol-gel matrix modified electrode for nitrite sensor application International Journal of Nanotechnology, 8 (10-12). pp. 925-934. ISSN 1475-7435

Pandikumar, Alagarsamy ; Murugesan, Sepperumal ; Ramaraj, Ramasamy (2010) Functionalized silicate sol-gel-supported TiO₂-Au core-shell nanomaterials and their photoelectrocatalytic activity ACS Applied Materials & Interfaces, 2 (7). pp. 1912-1917. ISSN 1944-8244

Rajendran, Thangamuthu ; Manimaran, Balasubramanian ; Liao, Rong-Tang ; Liu, Yen-Hsiang ; Thanasekaran, Pounraj ; Lin, Ren-Jay ; Chang, I-Jy ; Chou, Pi-Tai ; Ramaraj, Ramasamy ; Rajagopal, Seenivasan ; Lu, Kuang-Lieh (2010) Luminescence quenching of Re(I) molecular rectangles by quinones Dalton Transactions, 39 (11). pp. 2928-2935. ISSN 0300-9246

Manivannan, Shanmugam ; Ramaraj, Ramasamy (2009) Core-shell Au/Ag nanoparticles embedded in silicate sol-gel network for sensor application towards hydrogen peroxide Journal of Chemical Sciences, 121 (5). pp. 735-743. ISSN 0377-8444

Subramani, Thangavel ; Ramasamy, Ramaraj (2009) Electrochemical and in situ spectroelectrochemical studies on the gold nanoparticles co-deposited with cobalt hexacyanoferrate modified electrode and its application in sensor Journal of Nanoscience and Nanotechnology, 9 (4). pp. 2353-2363. ISSN 1533-4880

Selvaraju, Thangavelu ; Ramaraj, Ramasamy (2009) Electrocatalytic reduction of hydrogen peroxide at nanostructured copper modified electrode Journal of Applied Electrochemistry, 39 (3). pp. 321-327. ISSN 0021-891X

Yang, Han ; Nagai, Keiji ; Abe, Toshiyuki ; Homma, Hirofumi ; Norimatsu, Takayoshi ; Ramaraj, Ramasamy (2009) Enhanced catalytic activity of gold nanoparticles doped in a mesoporous organic gel based on polymeric phloroglucinol carboxylic acid-formaldehyde ACS Applied Materials & Interfaces, 1 (9). pp. 1860-1864. ISSN 1944-8244

Maduraiveeran, Govindhan ; Ramaraj, Ramasamy (2009) Potential sensing platform of silver nanoparticles embedded in functionalized silicate shell for nitroaromatic compounds Analytical Chemistry, 81 (18). pp. 7552-7560. ISSN 0003-2700

Selvaraju, T. ; Sivagami, S. ; Thangavel, S. ; Ramaraj, R. (2008) Electrochemical and in situ spectroelectrochemical studies of gold nanoparticles immobilized Nafion matrix modified electrode Bulletin of Materials Science, 31 (3). pp. 487-494. ISSN 0250-4707

Thangavel, Subramani ; Ramaraj, Ramasamy (2008) Polymer membrane stabilized gold nanostructures modified electrode and its application in nitric oxide detection The Journal of Physical Chemistry C, 112 (50). pp. 19825-19830. ISSN 1932-7447

Maduraiveeran, Govindhan ; Ramaraj, Ramasamy (2007) Gold nanoparticles embedded in silica sol-gel matrix as an amperometric sensor for hydrogen peroxide Journal of Electroanalytical Chemistry, 608 (1). pp. 52-58. ISSN 0022-0728

Maduraiveeran, Govindhan ; Ramaraj, Ramasamy (2007) A facile electrochemical sensor designed from gold nanoparticles embedded in three-dimensional sol-gel network for concurrent detection of toxic chemicals Electrochemistry Communications, 9 (8). pp. 2051-2055. ISSN 1388-2481

Selvaraju, T. ; Ramaraj, R. (2007) Simultaneous detection of ascorbic acid, uric acid and homovanillic acid at copper modified electrode Electrochimica Acta, 52 (9). pp. 2998-3005. ISSN 0013-4686

Balakumar, S. ; Thanasekaran, P. ; Rajkumar, E. ; John Adaikalasamy, K. ; Rajagopal, S. ; Ramaraj, R. ; Rajendran, T. ; Manimaran, B. ; Lu, K.-L. (2006) Micellar catalysis on the electron transfer reactions of iron(III)-polypyridyl complexes with organic sulphides. Importance of hydrophobic interactions Organic & Biomolecular Chemistry, 4 (2). pp. 352-358. ISSN 1477-0520

Ramaraj, Ramasamy (2006) Nanostructured metal particle-modified electrodes for electrocatalytic and sensor applications Journal of Chemical Sciences, 118 (6). pp. 593-600. ISSN 0377-8444

Selvaraju, Thangavelu ; Ramaraj, Ramasamy (2005) Electrochemically deposited nanostructured platinum on Nafion coated electrode for sensor applications Journal of Electroanalytical Chemistry, 585 (2). pp. 290-300. ISSN 0022-0728

Selvaraju, T. ; Ramaraj, R. (2005) Nanostructured copper particles-incorporated Nafion-modified electrode for oxygen reduction Pramana - Journal of Physics, 65 (4). pp. 713-722. ISSN 0304-4289

Ganesan, Muniyandi ; Sivasubramanian, Veluchamy K. ; Rajendran, Thangamuthu ; Swarnalatha, Kalaiyar ; Rajagopal, Seenivasan ; Ramaraj, Ramasamy (2005) Electron transfer reactions of tris(polypyridine)ruthenium(III) complexes with organic sulfides: importance of hydrophobic interaction Tetrahedron, 61 (20). pp. 4863-4871. ISSN 0040-4020

Tachikawa, Takashi ; Ramaraj, Ramasamy ; Fujitsuka, Mamoru ; Majima, Tetsuro (2005) Hofmeister effects on electron-transfer reactions of 1-pyrenesulfonic acid radical cation with nucleophilic anions in nafion membranes Journal of Physical Chemistry B, The, 109 (8). pp. 3381-3386. ISSN 1089-5647

Wang, Rong ; Ramaraj, Ramasamy ; Okajima, Takeyoshi ; Kitamura, Fusao ; Matsumoto, Naoki ; Thiemann, Thies ; Mataka, Shuntaro ; Ohsak, Takeo (2004) Electrochemical behavior of conjugated quinoxaline derivatives Journal of Electroanalytical Chemistry, 567 (1). pp. 85-94. ISSN 0022-0728

Ilanchelian, M. ; Ramaraj, R. (2004) Emission of thioflavin T and its control in the presence of DNA Journal of Photochemistry and Photobiology A: Chemistry, 162 (1). pp. 129-137. ISSN 1010-6030

Ganesan, Muniyandi ; Sivasubramanian, Veluchamy Kamaraj ; Rajagopal, Seenivasan ; Ramaraj, Ramasamy (2004) Electron transfer reactions of organic sulfoxides with photochemically generated ruthenium(III)-polypyridyl complexes Tetrahedron, 60 (8). pp. 1921-1929. ISSN 0040-4020

Abraham John, S. ; Ramaraj, R. (2004) Microenvironment effects on the electrochemical and photoelectrochemical properties of thionine loaded Nafion^® films Journal of Electroanalytical Chemistry, 561 (1). pp. 119-126. ISSN 0022-0728

Selvaraju, T. ; Ramaraj, R. (2003) Simultaneous determination of ascorbic acid, dopamine and serotonin at poly(phenosafranine) modified electrode Electrochemistry Communications, 5 (8). pp. 667-672. ISSN 1388-2481

Selvaraju, T. ; Ramaraj, R. (2003) Simultaneous determination of dopamine and serotonin in the presence of ascorbic acid and uric acid at poly(o-phenylenediamine) modified electrode Journal of Applied Electrochemistry, 33 (8). pp. 759-762. ISSN 0021-891X

Rajendran, Susai ; Mary Reenkala, S. ; Anthony, Noreen ; Ramaraj, R. (2002) Synergistic corrosion inhibition by the sodium dodecylsulphate-Zn²⁺ system Corrosion Science, 44 (10). pp. 2243-2252. ISSN 0010-938X

Ilanchelian, Malaichamy ; Rajan Premkumar, J. ; Ramaraj, Ramasamy (2002) Photoreduction of nitrite to ammonia by metal phthalocyanines-adsorbed membrane Current Science, 83 (5). pp. 628-631. ISSN 0011-3891

Sivasubramanian, Veluchamy Kamaraj ; Ganesan, Muniyandi ; Rajagopal, Seenivasan ; Ramaraj, Ramasamy (2002) Iron(III)-salen complexes as enzyme models: mechanistic study of oxo(salen)iron complexes oxygenation of organic sulfides Journal of Organic Chemistry, 67 (5). pp. 1506-1514. ISSN 0022-3263

Retna Raj, C. ; Ramaraj, R. (2001) Emission of thioflavin T and its off-on control in polymer membranes Photochemistry and Photobiology, 74 (6). pp. 752-759. ISSN 0031-8655

Ganesan, V. ; Abraham John, S. ; Ramaraj, R. (2001) Multielectrochromic properties of methylene blue and phenosafranine dyes incorporated into Nafion^® film Journal of Electroanalytical Chemistry, 502 (1-2). pp. 167-173. ISSN 0022-0728

Ganesan, V. ; Ramaraj, R. (2001) Spectral properties of proflavin in zeolite-L and zeolite-Y Journal of Luminescence, 92 (3). pp. 167-173. ISSN 0022-2313

Ganesan, V. ; Ramaraj, R. (2001) Electrocatalytic oxidation of hydrogen peroxide by poly(Ni^IIteta) modified electrodes^§ Journal of Applied Electrochemistry, 31 (5). pp. 585-590. ISSN 0021-891X

Ramaraj, Ramasamy (2001) Photoelectrochemistry of molecules in zeolites and clays Research on Chemical Intermediates, 27 (4-5). pp. 407-414. ISSN 0922-6168

Ganesan, V. ; Ramaraj, R. (2000) In situ spectroelectrochemical studies of phenothiazine dyes at clay coated electrodes Journal of Electroanalytical Chemistry, 490 (1-2). pp. 54-61. ISSN 0022-0728

Ramaraj, Ramasamy ; Kabbea, Christian ; Scholz, Fritz (2000) Electrochemistry of microparticles of tri(2,2'-bipyridine)ruthenium(II) hexafluorophosphate Electrochemistry Communications, 2 (3). pp. 190-194. ISSN 1388-2481

Ganesan, V. ; Ramaraj, R. (2000) Mediated reduction of oxygen at poly(phenosafranine) modified electrodes Journal of Applied Electrochemistry, 30 (6). pp. 757-760. ISSN 0021-891X

Ilanchelian, M. ; Retna Raj, C. ; Ramaraj, R. (2000) Spectral studies on the cyclodextrin inclusion complexes of toluidine blue O and meldola's blue in aqueous solution Journal of Inclusion Phenomena and Macrocyclic Chemistry, 36 (1). pp. 9-20. ISSN 0923-0750

Premkumar, J. ; Ramaraj, R. (1999) Photoreduction of dioxygen to hydrogen peroxide at porphyrins and phthalocyanines adsorbed Nafion membrane Journal of Molecular Catalysis A: Chemical, 142 (2). pp. 153-162. ISSN 1381-1169

Retna Raj, C. ; Ramaraj, R. (1999) Electrochemical study of the cyclodextrin encapsulation of a macrocyclic nickel complex Electrochimica Acta, 44 (16). pp. 2685-2691. ISSN 0013-4686

Retna Raj, C. ; Ramaraj, R. (1999) Influence of cyclodextrin complexation on the emission of thioflavin T and its off-on control Journal of Photochemistry and Photobiology A: Chemistry, 122 (1). pp. 39-46. ISSN 1010-6030

Maeda, Yasuhisa ; Sato, Koichi ; Ramaraj, Ramasamy ; Rao, Tata N. ; Tryk, Donald A. ; Fujishima, Akira (1999) Extrazeolite electron transfer at zeolite-encapsulated polypyridyl metal complex coated electrodes Electrochimica Acta, 44 (20). pp. 3441-3449. ISSN 0013-4686

Retna Raj, C. ; Ramaraj, R. (1998) Study of surfactant-cyclodextrin complexation by cyclic voltammetry using polypyridyl metal complexes as electroactive probes Electrochimica Acta, 44 (2-3). pp. 279-285. ISSN 0013-4686

Premkumar , J. ; Ramaraj, R. (1998) Multistep photocatalytic reduction of dioxygen by immobilized [Ru(bpy)₃]²⁺ in Nafion and cellulose matrices and macrocyclic cobalt(III) complexes Journal of the Chemical Society, Dalton transactions, 1998 (21). pp. 3667-3672. ISSN 0300-9246

Premkumar, J. ; Ramaraj, R. (1998) Photocatalytic reduction of dioxygen by colloidal semiconductors and macrocyclic cobalt(III) complexes in Nafion and cellulose matrices Journal of Molecular Catalysis A: Chemical, 132 (1). pp. 21-32. ISSN 1381-1169

Ganesan, V. ; Ramaraj, R. (1998) Extrazeolite electron transfer at zeolite encapsulated polypyridyl metal complexes coated electrodes Langmuir, 14 (9). pp. 2497-2501. ISSN 0743-7463

Rajan Premkumar, J. ; Ramaraj, Ramasamy (1998) Photochemical reduction of nitrite to ammonia at a solid phase photoredox system Chemical Communications (11). pp. 1195-1196. ISSN 1359-7345

Premkumar, J. ; Ramaraj, R. (1997) Photocatalytic reduction of carbon dioxide to formic acid at porphyrin and phthalocyanine adsorbed Nafion membranes Journal of Photochemistry and Photobiology A: Chemistry, 110 (1). pp. 53-58. ISSN 1010-6030

Retna Raj, C. ; Ramaraj, R. (1997) γ-Cyclodextrin induced intermolecular excimer formation of thioflavin T Chemical Physics Letters, 273 (3-4). pp. 285-290. ISSN 0009-2614

Abraham John, S. ; Ramaraj, R. (1997) Electrochemical, in situ spectrocyclic voltammetric and electrochromic studies of phenosafranine in Nafion_^® film Journal of Electroanalytical Chemistry, 424 (1-2). pp. 49-59. ISSN 0022-0728

Premkumar, J. ; Ramaraj, R. (1997) Photocatalytic production of hydrogen peroxide using cellulose adsorbed titanium dioxide particles and macrocyclic cobalt(II) complex Radiation Physics and Chemistry, 49 (1). pp. 115-117. ISSN 0969-806X

Thanasekaran, Pounraj ; Rajagopal, Seenivasan ; Ramaraj, Ramasamy ; Srinivasan, Chockalingam (1997) Photosensitized redox reactions of organic sulphides with tris-(2,2'-bipyrazine)ruthenium(II) cation Radiation Physics and Chemistry, 49 (1). pp. 103-106. ISSN 0969-806X

Premkumar, J. ; Ramaraj, R. (1997) Electrocatalytic reduction of dioxygen at platinum particles deposited on Nafion- and clay-coated electrodes Journal of Solid State Electrochemistry, 1 (2). pp. 172-179. ISSN 1432-8488

Thanasekaran, P. ; Rajendran, T. ; Rajagopal, S. ; Srinivasan, C. ; Ramaraj, R. ; Ramamurthy, P. ; Venkatachalapathy, B. (1997) Marcus inverted region in the photoinduced electron transfer reactions of Ruthenium(II)-Polypyridine complexes with phenolate ions The Journal of Physical Chemistry A, 101 (44). pp. 8195-8199. ISSN 1089-5639

Rajan Premkumar, J. ; Ramaraj, Ramasamy (1997) Photoreduction of carbon dioxide by metal phthalocyanine adsorbed Nafion membrane Chemical Communications (4). pp. 343-344. ISSN 1359-7345

Abraham John, S. ; Ramaraj, R. (1996) Electrochemical and spectroelectrochemical studies of phenothiazine dyes immobilized in Nafion film Langmuir, 12 (23). pp. 5689-5695. ISSN 0743-7463

Retna Raj, C. ; Ramaraj, R. (1996) Electrochemistry and photoelectrochemistry of phenothiazine dye-β-cyclodextrin inclusion complexes Journal of Electroanalytical Chemistry, 405 (1-2). pp. 141-147. ISSN 0022-0728

Premkumar, J. ; Ramaraj, R. (1996) Permeation and electrocatalytic reduction of oxygen by poly(o-phenylenediamine) incorporated into Nation film Journal of Applied Electrochemistry, 26 (7). pp. 763-766. ISSN 0021-891X

Rajan Premkumar, J. ; Ramaraj, Ramasamy (1996) Photocatalytic reduction of dioxygen to hydrogen peroxide in a solid-phase photoredox system Chemical Communications (6). pp. 761-762. ISSN 1359-7345

Ramaraj, Ramasamy (1996) Photoelectrocatalytic reactions of metal complexes at chemically modified electrodes Journal of Chemical Sciences, 108 (3). pp. 181-192. ISSN 0253-4134

Ramaraj, Ramasamy ; Kira, Akira ; Kaneko, Masao (1995) Model oxygen-evolving center composed of polymer membrane and dimer ruthenium complex Polymers for Advanced Technologies, 6 (3). pp. 131-140. ISSN 1042-7147

Abraham John, S. ; Ramaraj, R. (1995) Role of acidity on the electrochemistry of Prussian Blue at plain and Nation filmcoated electrodes Proceedings of the Indian Academy of Sciences - Chemical Sciences, 107 (4). pp. 371-383. ISSN 0253-4134

John, Swamidoss A. ; Ramaraj, Ramasamy (1994) Influence of polymer structure on the electrochemistry of phenothiazine dyes incorporated into Nafion films Faraday Transactions, 90 (9). pp. 1241-1244. ISSN 0956-5000

Vengatajalabathy Gobi, K. ; Ramaraj, Ramasamy (1994) Photoelectrochemical and quenching studies of tris(2,2'-bipyridine)ruthenium(II) bound to Nafion- and clay-coated electrodes Journal of the Chemical Society, Dalton Transactions (16). pp. 2445-2451. ISSN 1472-7773

Gobi, K. V. ; Ramaraj, R. (1993) Electron transfer reactions at Nafion and clay adsorbed Ru (bpy)²⁺₃ coated electrodes Journal of Molecular Catalysis, 84 (2). pp. 187-192. ISSN 0304-5102

Gobi, K. V. ; Ramaraj, R. ; Kaneko, M. (1993) Water oxidation catalysed by heterogeneous Schiff base manganese complex Journal of Molecular Catalysis, 81 (1). L7-L11. ISSN 0304-5102

Ramaraj, R. ; Kira, A. ; Kaneko, M. (1993) In-situ spectrocyclic voltammetry investigations of the formation of a water oxidation catalyst [(bpy)₂(H₂O)Ru---O---Ru(H₂O)(bpy)₂]⁴⁺ at a Nafion^®-coated electrode Journal of Electroanalytical Chemistry, 348 (1-2). pp. 367-376. ISSN 0022-0728

Ramaraj, Ramasamy ; Kaneko, Masao (1993) Oxygen-evolving centre utilizing polymer membrane and trinuclear ruthenium complexes Chemical Communications (6). pp. 579-581. ISSN 0022-4936

Vengatajalabathy Gobi, K. ; Ramaraj, Ramasamy (1992) Photoelectrocatalytic reduction of oxygen at chemically modified electrodes using ruthenium(II) and cobalt(III) complexes Journal of the Chemical Society, Chemical Communications (19). pp. 1436-1437. ISSN 0022-4936

Abraham John, S. ; Gobi, K. V. ; Ramasubbu, A. ; Ramaraj, R. (1992) Photoinduced electron transfer reactions at methylene blue adsorbed nafion and clay coated electrodes Research on Chemical Intermediates, 18 (2). pp. 203-210. ISSN 0922-6168

Ramaraj, R. ; Natarajan, P. (1991) Preparation and photochemistry of macromolecular bound ruthenium(II) complexes in aqueous solutions Journal of Polymer Science Part A: Polymer Chemistry, 29 (9). pp. 1339-1346. ISSN 0887-624X

Abraham John, S. ; Ramaraj, R. (1988) Comparative electrochemistry of phenothiazine dyes incorporated into Nafion and poly(styrenesulfonate) films Journal of Chemical Sciences, 110 (2). pp. 115-126. ISSN 0377-8444

Ramaraj, Ramasamy ; Kira, Akira ; Keneko, Masao (1987) Monoculear ruthenium-ammine complexes as catalysts for water oxidation Journal of the Chemical Society, Chemical Communications (4). pp. 227-228. ISSN 0022-4936

Ramaraj, Ramasamy ; Kira, Akira ; Kaneko, Masao (1987) Oxygen evolution by water oxidation with polynuclear ruthenium complexes Journal of the Chemical Society, Faraday Transactions 1, 83 (5). pp. 1539-1551. ISSN 3279-3291

Ramaraj, Ramasamy ; Kira, Akira ; Kaneko, Masao (1986) Oxygen evolution by water oxidation mediated by heterogeneous manganese complexes Angewandte Chemie (English Edition), 25 (9). pp. 825-827. ISSN 0570-0833

Ramaraj, Ramasamy ; Kira, Akira ; Kaneko, Masao (1986) Electrochemistry and stability studies of oxo-bridged dinuclear ruthenium(III) complexes for water oxidation Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 82 (11). pp. 3515-3524. ISSN 1857-1867

Ramaraj, Ramasamy ; Kira, Akira ; Kaneko, Masao (1986) Heterogenous water oxidation by an amide-bridged dinuclear ruthenium complex adsorbed on ion-exchange resins Journal of the Chemical Society, Chemical Communications (23). pp. 1707-1709. ISSN 0022-4936

Ramaraj, R. ; Natarajan, P. (1985) Novel interactions between different molecules bound to the same macromolecular chain Chemical Physics Letters, 113 (1). pp. 108-111. ISSN 0009-2614