Browse by Fellow

Dutta, Mita ; Ghora, Santanu ; Sahaw, Anannya ; Chellappan, Retna Raj ; Bhattacharjee, Manish (2025) A low molecular weight iron metallogel as an OER catalyst Langmuir, 41 (29). pp. 19606-19613. ISSN 0743-7463

Dahal, Homen ; Paswan, Akash Mukhraj ; Dey, Joykrishna ; Chellappan, Retna Raj (2025) Harnessing the potential of amide-linked Gemini surfactants for corrosion inhibition and antimicrobial activity: From molecular design to functional performance Langmuir, 41 (8). pp. 5455-5466. ISSN 0743-7463

Ghora, Santanu ; Satpati, Biswarup ; Jena, Bikash Kumar ; Chellappan, Retna Raj (2025) Cyano-bridged bimetallic polymer network-derived Pd₃Fe intermetallic for qqueous rechargeable zinc-air batteries ACS Applied Materials & Interfaces, 17 (2). pp. 3426-3435. ISSN 1944-8244

Ghora, Santanu ; Chakraborty, Rishika ; Bag, Saheb ; Kumar, Mopidevi Manikanta ; Chellappan, Retna Raj (2024) Transition metal phosphide-based oxygen electrocatalysts for aqueous zinc–air batteries Chemical Communications, 61 (13). pp. 2636-2657. ISSN 1359-7345

Ahmed, Abdullah A. A. ; Havenridge, Shana ; Sahoo, Koustav ; Thapa, Loknath ; Baksi, Ananya ; Clever, Guido H. ; Noei, Heshmat ; Kohantorabi, Mona ; Stierle, Andreas ; Chellappan, Retna Raj ; Parak, Wolfgang J. ; Aikens, Christine M. ; Chakraborty, Indranath (2024) Effect of Ni‐doping on the optical, structural, and electrochemical properties of Ag₂₉ nanoclusters Small, 21 (2). ISSN 1613-6810

Manikanta Kumar, Mopidevi ; Singh, Rahul ; Chellappan, Retna Raj (2024) Surface‐engineered Ni₂P: An efficient oxygen electrocatalyst for zinc‐air battery Chemistry – An Asian Journal, 19 (23). ISSN 1861-4728

Paswan, Akash Mukhraj ; Thakur, Vikas Singh ; Banerjee, Swastika ; Chellappan, Retna Raj (2024) Electrochemical engineering of anode with zincophilic polymer interface for reversible zinc battery Advanced Functional Materials, 35 (2). ISSN 1616-301X

Samanta, Arpan ; Kumar, Mopidevi Manikanta ; Ghora, Santanu ; Ghatak, Arnab ; Bhattacharya, Somnath ; Kumar, Vivek ; Chellappan, Retna Raj (2024) Tuning the oxygen electrocatalytic performance of metal-doped graphitic carbon nitride for the development of zinc-air battery Journal of Chemical Sciences, 136 (3). ISSN 0253-4134

Bag, Saheb ; Kumar Choutipalli, Venkata Surya ; Bhadra, Abhirup ; Shuford, Kevin L. ; Kundu, Dipan ; Chellappan, Retna Raj (2024) Carbothermal reduction-induced oxygen vacancies in spinel cathodes for high-performance aqueous zinc-ion batteries Journal of Materials Chemistry A, 12 (34). pp. 22998-23007. ISSN 2050-7488

Kumar, Mopidevi Manikanta ; Aparna, C. ; Nayak, Amit Kumar ; Waghmare, Umesh V. ; Pradhan, Debabrata ; Chellappan, Retna Raj (2024) Surface tailoring-modulated bifunctional oxygen electrocatalysis with CoP for rechargeable Zn–air battery and water splitting ACS Applied Materials & Interfaces, 16 (3). pp. 3542-3551. ISSN 1944-8244

Thapa, Loknath ; Bhaumik, Asim ; Mondal, Swastik ; Chellappan, Retna Raj (2023) A heterostructured electrocatalyst for the electrochemical valorization of 5-hydroxymethylfurfural coupled with the hydrogen evolution reaction Journal of Materials Chemistry A, 11 (47). pp. 26242-26251. ISSN 2050-7488

Satpathy, Biraj Kanta ; Nayak, Amit Kumar ; Chellappan, Retna Raj ; Pradhan, Debabrata (2023) Morphology and phase-controlled synthesis of defect-rich layered cobalt hydroxide nanostructures for the oxygen evolution reaction ACS Applied Engineering Materials, 1 (10). pp. 2698-2706. ISSN 2771-9545

Thapa, Loknath ; Chellappan, Retna Raj (2023) Nitrogen electrocatalysis: Electrolyte engineering strategies to boost faradaic efficiency ChemSusChem, 16 (20). ISSN 1864-5631

Satpathy, Biraj Kanta ; Chellappan, Retna Raj ; Pradhan, Debabrata (2022) Facile room temperature synthesis of CoSn(OH)₆/g-C₃N₄ nanocomposite for oxygen evolution reaction Electrochimica Acta, 433 . p. 141250. ISSN 0013-4686

Mallick, Sourav ; Choutipalli, Venkata Surya Kumar ; Bag, Saheb ; Subramanian, Venkatesan ; Chellappan, Retna Raj (2022) Defect Engineered Ternary Spinel: An Efficient Cathode for an Aqueous Rechargeable Zinc-Ion Battery of Long-Term Cyclability ACS Applied Materials & Interfaces, 14 (33). pp. 37577-37586. ISSN 1944-8244

Ghosh, Debanjali ; Manikanta Kumar, Mopidevi ; Chellappan, Retna Raj ; Pradhan, Debabrata (2022) Bifunctional catalytic activity of solvothermally synthesized CeO₂ nanosphere/NiO nanoflake nanocomposites ACS Applied Energy Materials, 5 (5). pp. 5666-5679. ISSN 2574-0962

Mahato, Joydeep ; Chellappan, Retna Raj ; Biswas, Karabi (2022) Low-noise potentiostat circuit for electrochemical detection of heavy metals or metalloids IEEE Transactions on Instrumentation and Measurement, 71 . pp. 1-9. ISSN 0018-9456

Manikanta Kumar, Mopidevi ; Chellappan, Retna Raj (2022) Heteroatom-doped carbon-encapsulated FeP nanostructure: A multifunctional electrocatalyst for zinc–air battery and water electrolyzer ACS Applied Materials & Interfaces, 14 (13). pp. 15176-15186. ISSN 1944-8244

Mondal, Siniya ; Kumar, Mopidevi Manikanta ; Chellappan, Retna Raj (2021) Electrochemically dealloyed Cu–Pt nanostructures for oxygen reduction and formic acid oxidation ACS Applied Nano Materials, 4 (12). pp. 13149-13157. ISSN 2574-0970

Bhadra, Abhirup ; Kundu, Aniruddha ; Chellappan, Retna Raj (2021) Surface-engineered mesoporous carbon-based material for the electrochemical detection of hexavalent chromium Journal of Chemical Sciences, 133 (4). ISSN 0974-3626

Kundu, Aniruddha ; Mallick, Sourav ; Ghora, Santanu ; Chellappan, Retna Raj (2021) Advanced oxygen electrocatalyst for air-breathing electrode in Zn-Air batteries ACS Applied Materials & Interfaces, 13 (34). pp. 40172-40199. ISSN 1944-8244

Kundu, Aniruddha ; Samanta, Arpan ; Chellappan, Retna Raj (2021) Hierarchical hollow MOF-derived bamboo-like N-doped carbon nanotube-encapsulated Co_0.25Ni_0.75 alloy: An efficient bifunctional oxygen electrocatalyst for zinc–air battery ACS Applied Materials & Interfaces, 13 (26). pp. 30486-30496. ISSN 1944-8244

Mallick, Sourav ; Chellappan, Retna Raj (2021) Aqueous rechargeable Zn‐ion batteries: Strategies for improving the energy storage performance ChemSusChem, 14 (9). pp. 1987-2022. ISSN 1864-5631

Mallick, Sourav ; Mondal, Amit ; Chellappan, Retna Raj (2020) Rationally designed mesoporous carbon-supported Ni–NiWO₄@NiS nanostructure for the fabrication of hybrid supercapacitor of long-term cycling stability Journal of Power Sources, 477 . p. 229038. ISSN 0378-7753

Chakrabartty, Sukanta ; Karmakar, Subhajit ; Chellappan, Retna Raj (2020) An electrocatalytically active nanoflake-like Co₉S₈-CoSe₂ heterostructure for overall water splitting ACS Applied Nano Materials, 3 (11). pp. 11326-11334. ISSN 2574-0970

Samanta, Arpan ; Barman, Barun Kumar ; Mallick, Sourav ; Chellappan, Retna Raj (2020) Three-dimensional nitrogen-doped graphitic carbon-encapsulated MnO-Co heterostructure: A bifunctional energy storage material for Zn-ion and Zn–air batteries ACS Applied Energy Materials, 3 (10). pp. 10108-10118. ISSN 2574-0962

Samanta, Arpan ; Ghatak, Arnab ; Bhattacharyya, Somnath ; Chellappan, Retna Raj (2020) Transition metal alloy integrated tubular carbon hybrid nanostructure for bifunctional oxygen electrocatalysis Electrochimica Acta, 348 . p. 136274. ISSN 0013-4686

Samanta, Arpan ; Chellappan, Retna Raj (2020) Oxygen electrocatalysis with mesoporous Co−N−C catalysts: Towards understanding the active site and development of rechargeable Zn‐air batteries ChemElectroChem, 7 (13). pp. 2877-2887. ISSN 2196-0216

Mallick, Sourav ; Samanta, Arpan ; Chellappan, Retna Raj (2020) Mesoporous carbon-supported manganese tungstate nanostructures for the development of zinc–air battery powered long lifespan asymmetric supercapacitor Sustainable Energy & Fuels, 4 (8). pp. 4008-4017. ISSN 2398-4902

Samanta, Arpan ; Chellappan, Retna Raj (2020) Bifunctional nitrogen-doped hybrid catalyst based on onion-like carbon and graphitic carbon encapsulated transition metal alloy nanostructure for rechargeable zinc-air battery Journal of Power Sources, 455 . p. 227975. ISSN 0378-7753

Mondal, Siniya ; Choutipalli, Venkata Surya Kumar ; Jena, Bikash Kumar ; Subramanian, Venkatesan ; Chellappan, Retna Raj (2020) Bifunctional electrocatalytic activity of ordered intermetallics based on Pd and Sn The Journal of Physical Chemistry C, 124 (18). pp. 9631-9643. ISSN 1932-7447

Chakrabartty, Sukanta ; Sahu, Damini ; Chellappan, Retna Raj (2020) General approach for the synthesis of nitrogen-doped carbon encapsulated Mo and W phosphide nanostructures for electrocatalytic hydrogen evolution ACS Applied Energy Materials, 3 (3). pp. 2811-2820. ISSN 2574-0962

Karan, Chandan Kumar ; Mallick, Sourav ; Chellappan, Retna Raj ; Bhattacharjee, Manish (2019) A self‐healing metal–organic hydrogel for an all‐solid flexible supercapacitor Chemistry – A European Journal, 25 (65). pp. 14775-14779. ISSN 0947-6539

Satpathy, Biraj Kanta ; Nayak, Arpan Kumar ; Chellappan, Retna Raj ; Pradhan, Debabrata (2019) Morphology-dependent charge storage performance of Co₃O₄ nanostructures in an all-solid-state flexible supercapacitor New Journal of Chemistry, 43 (38). pp. 15177-15186. ISSN 1144-0546

Samanta, Arpan ; Chellappan, Retna Raj (2019) A new approach for the synthesis of electrocatalytically active CoFe₂O₄ catalyst for oxygen reduction reaction Journal of Electroanalytical Chemistry, 847 . p. 113183. ISSN 0022-0728

Mondal, Siniya ; Chellappan, Retna Raj (2019) Electrochemical dealloying-assisted surface-engineered Pd-based bifunctional electrocatalyst for formic acid oxidation and oxygen reduction ACS Applied Materials & Interfaces, 11 (15). pp. 14110-14119. ISSN 1944-8244

Chakrabartty, Sukanta ; Barman, Barun Kumar ; Chellappan, Retna Raj (2019) Nitrogen and phosphorous co-doped graphitic carbon encapsulated ultrafine OsP₂ nanoparticles: a pH universal highly durable catalyst for hydrogen evolution reaction Chemical Communications, 55 (30). pp. 4399-4402. ISSN 1359-7345

Kumar, Mopidevi Manikanta ; Raj, C. Retna (2019) Carbothermal-reduction-assisted phosphidation of cobalt affords mesoporous nitrogen-doped carbon-embedded CoP nanoelectrocatalysts for the oxygen reduction reaction ACS Applied Nano Materials, 2 (2). pp. 643-648. ISSN 2574-0970

Chakrabartty, Sukanta ; Chellappan, Retna Raj (2018) Mo₂C@NC nanowire bundle for efficient electrocatalytic hydrogen evolution International Journal of Hydrogen Energy, 43 (42). pp. 19510-19520. ISSN 0360-3199

Mondal, Siniya ; Chellappan, Retna Raj (2018) Copper nitride nanostructure for the electrocatalytic reduction of oxygen: kinetics and reaction pathway The Journal of Physical Chemistry C, 122 (32). pp. 18468-18475. ISSN 1932-7447

Samanta, Arpan ; Chellappan, Retna Raj (2018) Catalyst support in oxygen electrocatalysis: A case study with CoFe alloy electrocatalyst The Journal of Physical Chemistry C, 122 (28). pp. 15843-15852. ISSN 1932-7447

Mallick, Sourav ; Jana, Partha Pratim ; Chellappan, Retna Raj (2018) Asymmetric supercapacitor based on chemically coupled hybrid material of Fe₂O₃‐Fe₃O₄ heterostructure and nitrogen‐doped reduced graphene oxide ChemElectroChem, 5 (17). pp. 2348-2356. ISSN 2196-0216

Manna, Bhaskar ; Chellappan, Retna Raj (2018) Nanostructured sulfur-doped porous reduced graphene oxide for the ultrasensitive electrochemical detection and efficient removal of Hg(II) ACS Sustainable Chemistry & Engineering, 6 (5). pp. 6175-6182. ISSN 2168-0485

Mondal, Siniya ; Ghosh, Sourov ; Chellappan, Retna Raj (2018) Unzipping of single-walled carbon nanotube for the development of electrocatalytically active hybrid catalyst of graphitic carbon and Pd nanoparticles ACS Omega, 3 (1). pp. 622-630. ISSN 2470-1343

Chakrabartty, Sukanta ; Gopinath, Chinnakonda S. ; Chellappan, Retna Raj (2017) Polymer-based hybrid catalyst of low Pt content for electrochemical hydrogen evolution International Journal of Hydrogen Energy, 42 (36). pp. 22821-22829. ISSN 0360-3199

Manna, Bhaskar ; Chellappan, Retna Raj (2017) Inorganic–Organic Hybrid 3D Redox Nanoarchitecture for the Electrocatalytic Sensing of Thiols ACS Sustainable Chemistry & Engineering, 5 (10). pp. 9412-9422. ISSN 2168-0485

Bag, Sourav ; Chellappan, Retna Raj (2016) Hierarchical three-dimensional mesoporous MnO₂ nanostructures for high performance aqueous asymmetric supercapacitors Journal of Materials Chemistry A, 4 (2). pp. 587-595. ISSN 2050-7488

Chellappan, Retna Raj ; Samanta, Arpan ; Noh, Seung Hyo ; Mondal, Siniya ; Okajima, Takeyoshi ; Ohsaka, Takeo (2016) Emerging new generation electrocatalysts for the oxygen reduction reaction Journal of Materials Chemistry A, 4 (29). pp. 11156-11178. ISSN 2050-7488

Manna, Bhaskar ; Chellappan, Retna Raj (2016) Covalent functionalization and electrochemical tuning of reduced graphene oxide for the bioelectrocatalytic sensing of serum lactate Journal of Materials Chemistry B, 4 (26). pp. 4585-4593. ISSN 2050-750X

Bag, Sourav ; Chellappan, Retna Raj (2016) Facile shape-controlled growth of hierarchical mesoporous δ-MnO₂for the development of asymmetric supercapacitors Journal of Materials Chemistry A, 4 (21). pp. 8384-8394. ISSN 2050-7488

BAG, SOURAV ; Chellappan, Retna Raj (2016) On the electrocatalytic activity of nitrogen-doped reduced graphene Oxide: Does the nature of nitrogen really control the activity towards oxygen reduction? Journal of Chemical Sciences, 128 (3). pp. 339-347. ISSN 0974-3626

Dey, Ramendra Sundar ; Chellappan, Retna Raj (2014) Enzyme-integrated cholesterol biosensing scaffold based on in situ synthesized reduced graphene oxide and dendritic Pd nanostructure Biosensors and Bioelectronics, 62 . pp. 357-364. ISSN 0956-5663

Bag, Sourav ; Chellappan, Retna Raj (2014) Layered inorganic–organic hybrid material based on reduced graphene oxide and α-Ni(OH)₂ for high performance supercapacitor electrodes J. Mater. Chem. A, 2 (42). pp. 17848-17856. ISSN 2050-7488

Bera, R.K. ; Mandal, S.M. ; Chellappan, Retna Raj (2014) Antimicrobial activity of fluorescent Ag nanoparticles Letters in Applied Microbiology, 58 (6). pp. 520-526. ISSN 0266-8254

Das, Ashok Kumar ; Chellappan, Retna Raj (2014) Shape-controlled growth of surface-confined Au nanostructures for electroanalytical applications Journal of Electroanalytical Chemistry, 717-71 . pp. 140-146. ISSN 1572-6657

Bag, Sourav ; Roy, Kanak ; Gopinath, Chinnakonda S. ; Chellappan, Retna Raj (2014) Facile single-step synthesis of nitrogen-doped reduced graphene oxide-Mn₃O₄ hybrid functional material for the electrocatalytic reduction of oxygen ACS Applied Materials & Interfaces, 6 (4). pp. 2692-2699. ISSN 1944-8244

Ghosh, Sourov ; Mondal, Siniya ; Chellappan, Retna Raj (2014) Carbon nanotube-supported dendritic Pt-on-Pd nanostructures: growth mechanism and electrocatalytic activity towards oxygen reduction reaction J. Mater. Chem. A, 2 (7). pp. 2233-2239. ISSN 2050-7488

Dey, Ramendra Sundar ; Chellappan, Retna Raj (2013) A hybrid functional nanoscaffold based on reduced graphene oxide–ZnO for the development of an amperometric biosensing platform RSC Advances, 3 (48). p. 25858. ISSN 2046-2069

Bera, Raj Kumar ; Chellappan, Retna Raj (2013) A facile photochemical route for the synthesis of triangular Ag nanoplates and colorimetric sensing of H₂O₂ Journal of Photochemistry and Photobiology A: Chemistry, 270 . pp. 1-6. ISSN 1010-6030

Das, Ashok Kumar ; Chellappan, Retna Raj (2013) Shape and surface structure-dependent electrocatalytic activity of Au nanoparticles Electrochimica Acta, 107 . pp. 592-598. ISSN 0013-4686

Dey, Ramendra Sundar ; Chellappan, Retna Raj (2013) Redox-functionalized graphene oxide architecture for the development of amperometric biosensing platform ACS Applied Materials & Interfaces, 5 (11). pp. 4791-4798. ISSN 1944-8244

BEHERA, SUSMITA ; DEY, RAMENDRA SUNDAR ; RANA, MANAS KUMAR ; Chellappan, Retna Raj (2013) Electrochemistry of surface wired cytochrome c and bioelectrocatalytic sensing of superoxide Journal of Chemical Sciences, 125 (2). pp. 275-282. ISSN 0974-3626

Ghosh, Sourov ; Chellappan, Retna Raj (2013) Shape-controlled synthesis of Pt nanostructures and evaluation of catalytic and electrocatalytic performance Catalysis Science and Technology, 3 (4). p. 1078. ISSN 2044-4753

Dey, Ramendra Sundar ; Bera, Raj Kumar ; Chellappan, Retna Raj (2012) Nanomaterial-based functional scaffolds for amperometric sensing of bioanalytes Analytical and Bioanalytical Chemistry, 405 (11). pp. 3431-3448. ISSN 1618-2642

Ghosh, Sourov ; Sahu, Ranjan K ; Chellappan, Retna Raj (2012) Pt–Pd alloy nanoparticle-decorated carbon nanotubes: A durable and methanol tolerant oxygen reduction electrocatalyst In: UNSPECIFIED.

Dey, Ramendra Sundar ; Hajra, Saumen ; Sahu, Ranjan K. ; Chellappan, Retna Raj ; Panigrahi, M. K. (2012) A rapid room temperature chemical route for the synthesis of graphene: metal-mediated reduction of graphene oxide Chemical Communications, 48 (12). p. 1787. ISSN 1359-7345

Dey, Ramendra Sundar ; Raj, C. Retna (2011) Polyelectrolyte‐Functionalized Gold Nanoparticle Scaffold for the Sensing of Heparin and Protamine in Serum In: UNSPECIFIED.

Bera, Raj Kumar ; Anoop, Anakuthil ; Chellappan, Retna Raj (2011) Enzyme-free colorimetric assay of serum uric acid Chemical Communications, 47 (41). p. 11498. ISSN 1359-7345

Das, Ashok Kumar ; Chellappan, Retna Raj (2011) Iodide-mediated reduction of AuCl₄^– and a new green route for the synthesis of single crystalline au nanostructures with pronounced electrocatalytic activity The Journal of Physical Chemistry C, 115 (43). pp. 21041-21046. ISSN 1932-7447

Ghosh, Sourov ; Sahu, Ranjan K. ; Chellappan, Retna Raj (2011) Shape-regulated high yield synthesis of electrocatalytically active branched Pt nanostructures for oxygen reduction and methanol oxidation reactions Journal of Materials Chemistry, 21 (32). p. 11973. ISSN 0959-9428

Bera, Raj Kumar ; Chellappan, Retna Raj (2011) Naked eye sensing of melamine using rationally tailored gold nanoparticles: hydrogen-bonding and charge-transfer recognition The Analyst, 136 (8). p. 1644. ISSN 0003-2654

Jena, Bikash Kumar ; Chellappan, Retna Raj (2011) Enzyme integrated silicate–Pt nanoparticle architecture: A versatile biosensing platform Biosensors and Bioelectronics, 26 (6). pp. 2960-2966. ISSN 0956-5663

Dey, Ramendra Sundar ; Gupta, Susmita ; Paira, Rupankar ; Chen, Shen-Ming ; Chellappan, Retna Raj (2011) Flow injection amperometric sensing of uric acid and ascorbic acid using the self-assembly of heterocyclic thiol on Au electrode Journal of Solid State Electrochemistry, 16 (1). pp. 173-178. ISSN 1432-8488

Das, Ashok Kumar ; Chellappan, Retna Raj (2011) Rapid room temperature synthesis of electrocatalytically active Au nanostructures Journal of Colloid and Interface Science, 353 (2). pp. 506-511. ISSN 0021-9797

Dey, Ramendra Sundar ; Chellappan, Retna Raj (2010) Development of an amperometric cholesterol biosensor based on graphene−Pt nanoparticle hybrid material The Journal of Physical Chemistry C, 114 (49). pp. 21427-21433. ISSN 1932-7447

Chakraborty, Sudip ; Chellappan, Retna Raj (2010) Electrocatalytic performance of carbon nanotube-supported palladium particles in the oxidation of formic acid and the reduction of oxygen Carbon, 48 (11). pp. 3242-3249. ISSN 0008-6223

Bera, Raj Kumar ; Das, Ashok Kumar ; Chellappan, Retna Raj (2010) Enzyme-cofactor-assisted photochemical synthesis of Ag nanostructures and shape-dependent optical sensing of Hg(II) ions Chemistry of Materials, 22 (15). pp. 4505-4511. ISSN 0897-4756

Ghosh, Sourov ; Chellappan, Retna Raj (2010) Facile in situ synthesis of multiwall carbon nanotube supported flowerlike Pt nanostructures: an efficient electrocatalyst for fuel cell application The Journal of Physical Chemistry C, 114 (24). pp. 10843-10849. ISSN 1932-7447

Chakraborty, Sudip ; Chellappan, Retna Raj (2010) Carbon nanotube supported platinum nanoparticles for the voltammetric sensing of hydrazine Sensors and Actuators B: Chemical, 147 (1). pp. 222-227. ISSN 0925-4005

Dey, Ramendra Sundar ; Gupta, Susmita ; Paira, Rupankar ; Chellappan, Retna Raj (2010) Electrochemically derived redox molecular architecture: A novel electrochemical interface for voltammetric sensing ACS Applied Materials & Interfaces, 2 (5). pp. 1355-1360. ISSN 1944-8244

Jena, Bikash Kumar ; Chellappan, Retna Raj (2010) Au nanoparticle decorated silicate network for the amperometric sensing of isoniazid Talanta, 80 (5). pp. 1653-1656. ISSN 0039-9140

Das, Ashok Kumar ; Chellappan, Retna Raj (2010) Facile growth of flower-like Au nanocrystals and electroanalysis of biomolecules Journal of Electroanalytical Chemistry, 638 (2). pp. 189-194. ISSN 1572-6657

Chakraborty, Sudip ; Chellappan, Retna Raj (2009) Pt nanoparticle-based highly sensitive platform for the enzyme-free amperometric sensing of H₂O₂ Biosensors and Bioelectronics, 24 (11). pp. 3264-3268. ISSN 0956-5663

Behera, Susmita ; Chellappan, Retna Raj (2008) Electrochemistry of surface wired redox protein: Axial ligation and control of redox potential Journal of Electroanalytical Chemistry, 619-62 . pp. 159-163. ISSN 1572-6657

Jena, Bikash Kumar ; Chellappan, Retna Raj (2008) Highly sensitive and selective electrochemical detection of sub-ppb level chromium (VI) using nano-sized gold particle Talanta, 76 (1). pp. 161-165. ISSN 0039-9140

Kumar Jena, Bikash ; Chellappan, Retna Raj (2008) Morphology dependent electrocatalytic activity of Au nanoparticles Electrochemistry Communications, 10 (6). pp. 951-954. ISSN 1388-2481

Jena, Bikash Kumar ; Chellappan, Retna Raj (2008) Optical sensing of biomedically important polyionic drugs using nano-sized gold particles Biosensors and Bioelectronics, 23 (8). pp. 1285-1290. ISSN 0956-5663

Jena, Bikash Kumar ; Chellappan, Retna Raj (2008) Electrocatalytic applications of nanosized Pt particles self-assembled on sol−gel-derived three-dimensional silicate network The Journal of Physical Chemistry C, 112 (10). pp. 3496-3502. ISSN 1932-7447

Behera, S. ; Chellappan, Retna Raj (2007) Self-assembled monolayers of thio-substituted nucleobases on gold electrode for the electroanalysis of NADH, ethanol and uric acid Sensors and Actuators B: Chemical, 128 (1). pp. 31-38. ISSN 0925-4005

Behera, S. ; Chellappan, Retna Raj (2007) Mercaptoethylpyrazine promoted electrochemistry of redox protein and amperometric biosensing of uric acid Biosensors and Bioelectronics, 23 (4). pp. 556-561. ISSN 0956-5663

Chandra, Debraj ; Jena, Bikash Kumar ; Chellappan, Retna Raj ; Bhaumik, Asim (2007) Functionalized mesoporous cross-linked polymer as efficient host for loading gold nanoparticles and its electrocatalytic behavior for reduction of H₂O₂ Chemistry of Materials, 19 (25). pp. 6290-6296. ISSN 0897-4756

Chakraborty, Sudip ; Chellappan, Retna Raj (2007) Mediated electrocatalytic oxidation of bioanalytes and biosensing of glutamate using functionalized multiwall carbon nanotubes-biopolymer nanocomposite Journal of Electroanalytical Chemistry, 609 (2). pp. 155-162. ISSN 1572-6657

Jena, Bikash Kumar ; Chellappan, Retna Raj (2007) Shape-controlled synthesis of gold nanoprism and nanoperiwinkles with pronounced electrocatalytic activity The Journal of Physical Chemistry C, 111 (42). pp. 15146-15153. ISSN 1932-7447

Chakraborty, Sudip ; Chellappan, Retna Raj (2007) Amperometric biosensing of glutamate using carbon nanotube based electrode Electrochemistry Communications, 9 (6). pp. 1323-1330. ISSN 1388-2481

Jena, Bikash Kumar ; Chellappan, Retna Raj (2007) Amperometric L‐Lactate biosensor based on gold nanoparticles Electroanalysis, 19 (7-8). pp. 816-822. ISSN 1040-0397

Jena, Bikash Kumar ; Chellappan, Retna Raj (2007) Ultrasensitive Nanostructured Platform for the Electrochemical Sensing of Hydrazine The Journal of Physical Chemistry C, 111 (17). pp. 6228-6232. ISSN 1932-7447

Jena, Bikash Kumar ; Chellappan, Retna Raj (2007) Synthesis of flower-like gold nanoparticles and their electrocatalytic activity towards the oxidation of methanol and the reduction of oxygen Langmuir, 23 (7). pp. 4064-4070. ISSN 0743-7463

Chellappan, Retna Raj ; Behera, S. (2007) Electrochemically triggered michael addition on the self-assembly of 4-thiouracil: Generation of surface-confined redox mediator and electrocatalysis Langmuir, 23 (4). pp. 1600-1607. ISSN 0743-7463

Chellappan, Retna Raj ; Chakraborty, Sudip (2006) Carbon nanotubes–polymer–redox mediator hybrid thin film for electrocatalytic sensing Biosensors and Bioelectronics, 22 (5). pp. 700-706. ISSN 0956-5663

Jena, Bikash Kumar ; Chellappan, Retna Raj (2006) Electrochemical biosensor based on integrated assembly of dehydrogenase enzymes and gold nanoparticles Analytical Chemistry, 78 (18). pp. 6332-6339. ISSN 0003-2700

Jena, Bikash Kumar ; Chellappan, Retna Raj (2006) Enzyme‐free amperometric sensing of glucose by using gold nanoparticles Chemistry – A European Journal, 12 (10). pp. 2702-2708. ISSN 0947-6539

Chellappan, Retna Raj ; Abdelrahman, Ahmed I. ; Ohsaka, Takeo (2005) Gold nanoparticle-assisted electroreduction of oxygen Electrochemistry Communications, 7 (9). pp. 888-893. ISSN 1388-2481

Chellappan, Retna Raj ; Behera, S. (2005) Electrochemical studies of 6-mercaptonicotinic acid monolayer on Au electrode Journal of Electroanalytical Chemistry, 581 (1). pp. 61-69. ISSN 1572-6657

Chellappan, Retna Raj ; Jena, Bikash Kumar (2005) Efficient electrocatalytic oxidation of NADH at gold nanoparticles self-assembled on three-dimensional sol-gel network Chemical Communications (15). p. 2005. ISSN 1359-7345

Chellappan, Retna Raj ; Okajima, Takeyoshi ; Ohsaka, Takeo (2003) Gold nanoparticle arrays for the voltammetric sensing of dopamine Journal of Electroanalytical Chemistry, 543 (2). pp. 127-133. ISSN 0022-0728

Chellappan, Retna Raj ; Ohsaka, Takeo (2003) Voltammetric detection of uric acid in the presence of ascorbic acid at a gold electrode modified with a self-assembled monolayer of heteroaromatic thiol Journal of Electroanalytical Chemistry, 540 . pp. 69-77. ISSN 1572-6657

Chellappan, Retna Raj ; Kitamura, F. ; Ohsaka, Takeo (2002) Square wave voltammetric sensing of uric acid using the self-assembly of mercaptobenzimidazole The Analyst, 127 (9). pp. 1155-1158. ISSN 0003-2654

Chellappan, Retna Raj ; Okajima, Takeyo ; Ohsaka, Takeo (2002) Voltammetric measurement of pH using a mixed self-assembly of macrocyclic nickel(II) complex and diimine on gold electrode Electrochemistry Communications, 4 (4). pp. 330-335. ISSN 1388-2481

Chellappan, Retna Raj ; Ohsaka, Takeo (2001) Electrocatalytic sensing of NADH at an in situ functionalized self-assembled monolayer on gold electrode Electrochemistry Communications, 3 (11). pp. 633-638. ISSN 1388-2481

Chellappan, Retna Raj ; Kitamura, Fusao ; Ohsaka, Takeo (2001) Electrochemical and in situ FTIR spectroscopic investigation on the electrochemical transformation of 4-aminothiophenol on a gold electrode in neutral solution Langmuir, 17 (23). pp. 7378-7386. ISSN 0743-7463

Chellappan, Retna Raj ; Tokuda, Koichi ; Ohsaka, Takeo (2001) Electroanalytical applications of cationic self-assembled monolayers: square-wave voltammetric determination of dopamine and ascorbate Bioelectrochemistry, 53 (2). pp. 183-191. ISSN 1567-5394

Chellappan, Retna Raj ; Ohsaka, Takeo (2001) Facilitated electrochemical oxidation of NADH and its model compound at gold electrode modified with terminally substituted electroinactive self-assembled monolayers Bioelectrochemistry, 53 (2). pp. 251-256. ISSN 1567-5394

Chellappan, Retna Raj ; Ohsaka, Takeo (2001) Electroanalysis of ascorbate and dopamine at a gold electrode modified with a positively charged self-assembled monolayer Journal of Electroanalytical Chemistry, 496 (1-2). pp. 44-49. ISSN 1572-6657

Chellappan, Retna Raj ; Gobi, K.Vengatajalabathy ; Ohsaka, Takeo (2000) Electrocatalytic oxidation of NADH at the self-assembled monolayer of nickel(II) macrocycle on gold electrode Bioelectrochemistry, 51 (2). pp. 181-186. ISSN 1567-5394

Chellappan, Retna Raj ; OHSAKA, Takeo (1999) Simultaneous detection of ascorbic acid and dopamine at gold electrode modified with a self-assembled monolayer of cystamine Electrochemistry Communications, 67 (12). pp. 1175-1177. ISSN 1388-2481