Dr. Ashok K. Sundramoorthy

M.Sc., M.Phil., Ph.D

Research Assistant Professor

The main goal of research in the Ashok group is to fabricate highly selective (bio) chemical sensing devices. For instances, we are faced with the problem of detecting multiple analytes present in the same sample. However, detecting individual analyte with high selectivity and sensitivity is not easy and might require sample pretreatment and separation. To improve the sensitivity, selectivity, and reduce the interference effects, it may be required to use functionalized nanomaterials (carbon nanotubes, graphene, 2D layered inorganic materials, polymer nanocomposites etc.) which could improve the performance of the devices.

Dr. Ashok’s group is interested in synthesising nanomaterials, nanocomposites and biocompatible nanomaterials for various applications such as: biosensors, catalysis, energy harvesting/storage, biodegradable electronics, and flexible electronics. He intends to develop prototype chemical and biosensing devices for detection of chemical, organic contamination, microorganism detection, like bacteria and viruses in food, and environmental samples. He is also interested in functional carbon nanomaterials derived from agri-products for various applications, including for catalysis, energy harvesting/storage (flexible battery and supercapacitors), biodegradable films. 


  • Ph.D., Engineering (Electrochemistry), National Taipei University of Technology (2009), TAIWAN
  • M.Phil., Analytical Chemistry, University of Madras (2004), INDIA
  • M.Sc., Industrial Chemistry, Bharathidasan University (2002), INDIA

Academic/Research Experience:

  • Assistant Professor, SRM Research Institute & Department of Chemistry, SRM University, Chennai, India (July 2016 - Present).
  • Postdoc. Research Associate, University of Wisconsin-Madison, USA (Aug. 2013 - May 2016).
  • Postdoc. Research Associate, Nanyang Technological University, Singapore (May 2010 - Aug. 2013).
  • Postdoc. Research Associate, National Taipei University of Technology, Taiwan (Feb. 2009 - April 2010).

Achievements and Awards:  

  • Winner of the Wisconsin Alumni Research Foundation (WARF) Discovery Challenge Research Award Competition (2014) consists of a $7500 mini-grant.
  • Editorial Board Member of Advanced Materials Reviews from Jan. 2016.
  • Editorial Board Member of Journal of Nanomaterials (IF: 1.644).
  • Editorial Board Member of Journal of Chemistry (2013-2017) (IF: 0.772).
  • Associate Editor of Frontiers in Materials from May 2014.
  • Guest Editor of Special Issue on "New Developments on Nanomaterials for Electrochemical Applications, Micro and Nanosystems, 2012, Vol. 4. No. 3
  • Recognised in "Marquis Who's Who" 2009 Edition of Science and Engineering.
  • Received Best Researcher Awards in 2007 and 2008 from National Taipei University of Technology (1st position in top 20 selected researchers).
  • Taiwan scholarship recipients (Ministry of Education) for Research Program (2005-2008).


  • Graphene and 2D layered Materials Synthesis and Applications
  • Carbon Nanomaterials (Semiconducting and metallic CNTs separation)
  • Flexible Transparent Conductors and Field-Effect Transistors
  • Electrochemistry and Biosensors
  • Flexible Supercapacitors and Energy Storage Devices


PI: Dr. Ashok K. Sundramoorthy

Research Students/Scholars:

1. Mr. T.H. Vignesh Kumar (Ph.D. student) (M.Sc. in Appl. Chemistry)

2. Mr. Tulsiram M P (Ph.D. student)  (M.Tech. in Nano-Technology)

Master Students/Researchers

3. Mr. Christopher J  (M.Tech in Nano Tech.)

Post-doc/Senior Research Fellow

4. Mr. N. Murugan (Ph.D. Chemistry)




  • S. Gunasekaran and A.K. Sundramoorthy, Transparent Conducting Films Containing Single-Walled Carbon Nanotubes Dispersed in an Azo Dye, US Pat. 20150318070. (Pub. date: 5 Nov 2015).
  • B.E.M. Chan and A.K. Sundramoorthy, Method of Enriching Different Species of Carbon Nanotubes, US Pat. 2014308194-A1. (Pub. date: 16 Oct. 2014).
  • B.E.M. Chan, A.K. Sundramoorthy, and J. Wang, Self-Assembly of Calix[4]arene-Dispersed Oxidized Graphene For Transferable Transparent Conductive Thin Films, US Pat. Appl. 62/021,767, 2014.
  • S.-F. Wang, C.-K. Yang, S. Ashok Kumar# and I-l. Ho, Dispersing Agent of MWCNTs and the Method for Preparation and Application of Homogeneous MWCNTs Dispersion, US Pat. 20120070566 A1. (Pub. date: 22 Mar 2012).

(#also known as: S. Ashok Kumar in my earlier publications).

Books, Edited Volumes

  • S. Ashok Kumar, S. Thiagarajan, S.–F. Wang. (2010). Biocompatible Nanomaterials: Synthesis, Characterization and Applications, N.Y., Nova Science. (ISBN: 978-1-61668-677-2).
  • U. Yogeswaran, S. Ashok Kumar and S. –M. Chen. (2009). Nanostructured Materials for Electrochemical Biosensors, N.Y., Nova Science. (ISBN: 978-1-60741-706-4).

Scientific Peer-Reviewed Journal Papers (SCI)

  • M. Govindasamy, V. Mani, S.-M. Chen, T.-W. Chen, and A. K. Sundramoorthy
    Scientific Reports 2017; 7: 46471. (IF: 5.228)
  • O. Sadak, A. K. Sundramoorthy, S. Gunasekaran
    Biosensors and Bioelectronics 89 (2017) 430-436. (IF: 7.476)
  • G. Paramasivam, N. Kayambu, A. M. Rabel, A.K Sundramoorthy, A. Sundaramurthy
    Acta Biomaterialia  49 (2017) 45–65 (IF: 6.008) 
  •  A.K. Sundramoorthy O. Sadak, S. Anandhakumar and S. Gunasekaran*, 8-aminopyrene-1,3,6-trisulfonic Acid Functionalized Single-walled Carbon Nanotubes for Electrochemical Selective Detection of Caffeine, J. Electrochem. Soc.,  (2016) B638-B643. [IF: 3.4]
  • A.K. Sundramoorthy, B.S. Premkumar and S. Gunasekaran*, Reduced Graphene Oxide-Poly(3,4-ethylenedioxythiophene) Polystyrene Sulfonate Based Dual Selective Sensor for Iron in Different Oxidation States, ACS Sens., 1 (2016) 151–157.
  • SK Yadav, R Kumar, AK Sundramoorthy, RK Singh, CHM Koo, Simultaneous reduction and covalent grafting of polythiophene on graphene oxide sheets for excellent capacitance retention,   RSC Adv., 2016, 6, 52945-52949   (IF: 3.84).
  • N.G. Yasri, A.K. Sundramoorthy, and S. Gunasekaran*, Azo Dye Functionalized Graphene Nanoplatelets for Selective Detection of Bisphenol A and Hydrogen Peroxide, RSC Adv., 5 (2015) 87295-87305.  [IF: 3.84].
  • A.K. Sundramoorthy, Y.-C. Wang, and S. Gunasekaran*, Low-Temperature Solution-Process for Preparing Flexible, Highly Conducting, Transparent Carbon Nanotubes Film and Its Application in Flexible Supercapacitors, Nano Res., 8 (2015) 3430-3445. [IF: 7.010].
  • A.K. Sundramoorthy*, Y. Wang, J. Wang, J. Che, Y.X. Thong, A.C.W. Lu and M. B. Chan-Park*, Lateral assembly of oxidized graphene flakes into large-scale transparent conductive thin films with a three-dimensional surfactant 4-sulfocalix[4]arene, Sci. Rep. 5 (2015) 10716. (Publishers of Nature) [IF: 5.578].
  • A.K. Sundramoorthy* and Sundaram Gunasekaran*, Partially Oxidized Graphene/ Metallic Single-Walled Carbon Nanotubes Film-Coated Electrode for Nanomolar Detection of Dopamine, Electroanalysis 27 (2015) 1811-1816.   [IF: 2.138].
  • N.G. Yasri, A.K. Sundramoorthy*, W.-J. Chang, and S. Gunasekaran, Highly Selective Mercury Detection at Partially Oxidized Graphene and Poly(3,4-ethylenedioxythiophene) :Poly(styrenesulfonate) Based Nanocomposite Film Modified Electrode, Front. Mater. 1 (2014) 33.
  • A.K. Sundramoorthy and S. Gunasekaran*, Applications of Graphene in Quality Assurance and Safety of Food (Review Article), TRAC-Trend. Anal. Chem. 60 (2014) 36-53. [IF: 6.472]
  • S. Mesgari, A.K. Sundramoorthy, L. S. Loo* and M.B. Chan-Park*, Gel Electrophoresis using a Selective Radical for Separation of Single Walled Carbon Nanotubes, Faraday Discuss. 173 (2014) 351-363. [IF: 4.606]
  • J. Wang, J. Zhang, A.K. Sundramoorthy, P. Chen, and M.B. Chan-Park*, Solution-Processed Flexible Transparent Conductors Based on Carbon Nanotubes and Silver Grids Hybrid, Nanoscale 6 (2014) 4560-4565.  [IF: 7.394]
  • A.K. Sundramoorthy, S. Mesgari, J. Wang, R. Kumar, A. M. Sk, S. H. Yeap, Q. Zhang, S. K. Sze, K. H. Lim, and M. B. Chan-Park*, Scalable and Effective Selective Enrichment of Semiconducting Single-walled Carbon Nanotubes by a Dual Selective Naphthalene-based Azo Dispersant, J. Am. Chem. Soc. 135 (2013) 5569–5581. [IF: 12.113]
  • A.K. Sundramoorthy, S.-L. Chen and S.-M. Chen, Disposable Redox Polymer Coated Screen-Printed Carbon Electrode for NADH Sensing, Micro and Nanosystems 4 (2012) 172-179.
  • S. Ashok Kumar, S. –F. Wang*, Y. –T. Chang, H. –C. Lu and C. –T. Yeh, Electrochemical Properties of myoglobin deposited on multi-walled carbon nanotube/ciprofloxacin film, Colloid. Surface. B 82 (2011) 526-531. [IF: 3.554]
  • S. Ashok Kumar*, S.–L. Chen and S.-M. Chen*, Electrochemical sensing of H2O2 at flavin adenine dinucleotide /chitosan/CNT nanocomposite modified electrode, Electrochem. Solid State Lett., 13 (2010) K83-K86. [IF: 2.010]
  • S. Ashok Kumar, S.–F. Wang*, T. C.–K. Yang and C.–T. Yeh, Acid yellow 9 as a dispersing agent for carbon nanotubes: Preparation of redox polymer-carbon nanotube composite film and its sensing application towards ascorbic acid and dopamine, Biosens. Bioelectron. 25 (2010) 2592-2597. [IF: 5.437]   
  •  S. Ashok Kumar*, Y.–T. Chang, S.–F. Wang*, and H.–C. Lu, Synthetic antibacterial agent assisted synthesis of Gold Nanoparticles: characterization and application studies, J. Phys. Chem. Solids 71 (2010) 1484-1490. [IF: 1.527]
  • S. Ashok Kumar, S.–F. Wang*, C. –T. Yeh, H.-C. Lu, J.-C. Yang, and Y. –T. Chang, Direct electron transfer of cytochrome c and its electrocatalytic properties on multi-walled carbon nanotubes/ciprofloxacin films, J. Solid State Electrochem., 14 (2010) 2129-2135. [IF: 2.279]  
  • S. Ashok Kumar, S.–F. Wang* and Y.–T. Chang, Poly(BCB)/Au-nanoparticles hybrid film modified  electrode: Preparation, characterization and its application as a non-enzymatic sensor, Thin Solid Films 518 (2010) 5832-5838. [IF: 1.604]
  • S. Ashok Kumar, S. –F. Wang*, J. –C. Yang, C. –T. Yeh and H. –C. Lu, Synthesis of Gold Nanorods/Nanobelts and Their Potent Electrocatalytic Properties towards Ethanol Oxidation, Chem. Lett., 39 (2010) 74-75.  [IF: 1.594]    
  • S. Ashok Kumar, H.–W. Cheng, S.–M. Chen* and S.–F. Wang, Preparation and characterization of copper nanoparticles/zinc oxide composite modified electrode and its application to glucose sensing, Mat. Sci. Eng. C-Mater. Biol. Appl., 30 (2010) 86–91. [IF: 2.404]          
  • S. Ashok Kumar, H. –W. Cheng and S. –M. Chen*, Selective Detection of Uric Acid in the Presence of Ascorbic Acid and Dopamine Using Polymerized Luminol Film Modified Glassy Carbon Electrode, Electroanalysis 21 (2009) 2281-2286. [IF: 2.817]                    
  • S. Ashok Kumar, S.–L. Chen and S. –M. Chen*, Amperometric Sensor for Detection of the Reduced Form of Nicotinamide Adenine Dinucleotide Using a Poly(pyronin B) Film Modified Electrode, Electroanalysis 21 (2009) 1379-1386. [IF: 2.817]                       
  • S. Ashok Kumar and S.–F. Wang*, Adsorption of ciprofloxacin and its role for stabilizing multi-walled carbon nanotubes and characterization, Mater. Lett., 63 (2009) 1830–1833. [IF: 2.224]                          
  •  S. Ashok Kumar, H.–W. Cheng and S. –M. Chen*, Electroanalysis of ascorbic acid (vitamin C) using nano-ZnO/poly(luminol) hybrid film modified electrode, React. Funct. Polym., 69 (2009) 364–370. [IF: 2.505]            
  •  S. Ashok Kumar, P. –H. Lo and S. –M. Chen*, Electrochemical Analysis of H2O2 and Nitrite Using Copper Nanoparticles/Poly(o-phenylenediamine) Film Modified Glassy Carbon Electrode, J. Electrochem. Soc., 156 (7) (2009) E118-E123. [IF: 2.588]
  • C.–C. Ti, S. Ashok Kumar and S. –M. Chen*, Electrochemical preparation, characterization and electrocatalytic studies of Nafion/ruthenium oxide modified glassy carbon electrode
  • J. Solid State Electrochem., 13 (2009) 397-406. [IF: 2.279]
  • S. Ashok Kumar, P.–H. Lo and S. –M. Chen*, Electrochemical synthesis and characterizations of TiO2 nanoparticles and their use as platform for FAD immobilization and efficient electrocatalysis, Nanotechnology 19 (2008) 255501.  [IF: 3.842]                                 
  • S. Ashok Kumar and S. –M. Chen*, Nanostructured Zinc Oxide Particles in Chemically Modified Electrodes for Biosensor Applications (Review Article), Anal. Lett., 41 (2008) 141-158. [IF: 0.965]
  • S. Ashok Kumar and S. –M. Chen*, Electroanalysis of NADH using conducting and redox active polymer/carbon nanotubes modified electrodes-A review, Sensors 8 (2008) 739-766. [IF: 1.953]   
  • P. –H. Lo, S. Ashok Kumar and S. –M. Chen*, Amperometric determination of H2O2 at nano-TiO2/DNA/Thionin nanocomposite modified electrode, Colloid. Surface B., 66 (2008) 266-273. [IF: 3.554]    
  • S. Ashok Kumar, P. –H. Lo and S. –M. Chen*, Electrochemical selective determination of ascorbic acid at redox active polymer modified electrode derived from direct blue 71, Biosens. Bioelectron., 24 (2008) 518-523      [IF: 5.437]             
  • S. Ashok Kumar, C.–F. Tang and S.–M. Chen*, Electroanalytical determination of acetaminophen using nano-TiO2/polymer coated electrode in the presence of dopamine, Talanta 76 (2008) 997-1005  [IF: 3.498]                                                     
  • C.–F. Tang, S. Ashok Kumar and S. –M. Chen*, Zinc oxide/redox mediator composite films based sensor for electrochemical detection of important biomolecules, Anal. Biochem., 380 (2008) 174-183. [IF: 2.582]
  •  S. Ashok Kumar, C.-F. Tang and S. –M. Chen*, Poly(4-amino-1-1′-azobenzene-3, 4′-disulfonic acid) coated electrode for selective detection of dopamine from its interferences, Talanta 74 (2008) 860–866. [IF: 3.498]                 
  •  S. Ashok Kumar and S.–M. Chen*, Myoglobin/arylhydroxylamine film modified electrodes: Direct electrochemistry and electrochemical catalysis, Talanta 72 (2007) 831-838. [IF: 3.498]                                               
  •  S. Ashok Kumar and S. –M. Chen*, Electrochemical, microscopic and EQCM studies of cathodic electrodeposition of ZnO/FAD and anodic polymerization of FAD films modified electrodes and their electrocatalytic properties, J. Solid State Electrochem., 11 (2007) 993-1006. [IF: 2.279]
  •  S. Ashok Kumar and S. –M. Chen*, Electrochemically polymerized composites of conducting poly(ABSA) and flavins (FAD, FMN, RF) and their use as electrochemical sensors: A new potent electroanalysis of NADH and NAD+, Sensors Actuat. B-Chem., 123 (2007) 964-977. [IF: 3.535]   
  • S.–M. Chen*, M.–I. Liu and S. Ashok Kumar, Electrochemical preparation of poly(acriflavine) film modified electrode and its electrocatalyitc properties towards NADH, nitrite and sulfur oxoanions, Electroanalysis 19 (2007) 999-1007. [IF: 2.817]                             
  • S. Ashok Kumar and S. –M. Chen*, Fabrication and characterization of meldola’s Blue/zinc oxide hybrid electrodes for efficient detection of the reduced form of nicotinamide adenine dinucleotide at low potential, Anal. Chim. Acta 592 (2007) 36-44. [IF: 4.387]                              
  • S. Ashok Kumar and S.–M. Chen*, Electrocatalysis and Amperometric Detection of the Reduced Form of Nicotinamide Adenine Dinucleotide at Toluidine Blue/Zinc Oxide Coated Electrodes, Electroanalysis 19 (2007) 1952-1958.   [IF: 2.817]                                    
  • S. Ashok Kumar and S. –M. Chen*, Electrocatalytic reduction of oxygen and hydrogen peroxide at poly(p-aminobenzene sulfonic acid) modified glassy carbon electrodes, J. Mol. Catal. A-Chem., 278 (2007) 244-250. [IF: 3.187]

(Please note: In my earlier publications from 2007 to 2011, my name was published as S. Ashok Kumar; *Corresponding authors; (1st authors equal contribution).

Book Chapters

  • S. Ashok Kumar, S.-F. Wang, Y.–T. Chang. (2010). Chemical Synthesis of Gold Nanoparticles using Fluoroquinolone and their Characterizations, In S.A. Kumar, S. Thiagarajan and S.-F. Wang (Ed.), Biocompatible Nanomaterials: Synthesis, Characterization and Applications, pp. 285-296, NY, Nova Science.
  • S. Ashok Kumar, S.–F. Wang, C.–T. Yeh, H.-C. Lu. (2010). Direct Electron Transfers of Cytochrome c and Its Electrocatalytic Properties on Multi-Walled Carbon Nanotube Films, In S.A. Kumar, S. Thiagarajan and S.-F. Wang (Ed.), Biocompatible Nanomaterials: Synthesis, Characterization and Applications, pp. 337-346, NY, Nova Science.

Conferences/Seminars/Workshops Attended

  • Sundramoorthy, A. K. and Chan-Park, M.B. (2013, 30 Jun - 05 Jul). Highly-Selective and Scalable Chemical Approach for Separation of Semiconducting Singled-Walled Carbon Nanotubes for Field-Effect Transistors. Oral session presented at the meeting of ICMAT 2013-7th International Conferences on Materials for Advanced Technologies, Singapore.
  • Sundramoorthy, A.K. and Gunasekaran, S. (2014, 21 May). Preparing Transparent Conducting Film Using Single-Walled Carbon Nanotubes. Poster session presented at The 2014 Discovery Challenge Research Symposium, Wisconsin Institutes for Discovery, University of Wisconsin-Madison, WI.
  • Sundramoorthy, A.K. and Gunasekaran, S. (2015, 9 April). Nanomolar Detection of Neurotransmitter Dopamine. Poster session presented at The 2015 Discovery Challenge Research Symposium, Wisconsin Institutes for Discovery, University of Wisconsin-Madison, WI.
  • Sundramoorthy, A.K. and Gunasekaran, S. (2015, 7-12 June). Nanomolar detection of dopamine at oxidized graphene/metallic single-walled carbon nanotubes film-modified electrode. Poster session presented at Nanoscale Science & Engineering for Agriculture & Food Systems, Gordon Research Conference, Bentley University, Waltham, MA



  • Engineering Chemistry (15CY101) for B.Tech (I Semester)
  • Analytical Chemistry (PCY15E51) for M.Sc Chemistry (II Semester)
  • General Chemistry-I (UCY15101) for B.Sc Chemistry (I semester)
  • We believe that high impact research could be done by collaborative research only, so I am interested to collaborate with other researchers for a common goal.
  • We are looking for highly motivated under graduate,  graduate and Postdoc for various research projects. If you are interested, please contact via email with your CV to discuss further.

Contact Details:

Dr. Ashok K. Sundramoorthy
Research Assistant Professor
Department of Chemistry and SRM Research Institute
R-1221, Central library building
SRM University, Kattankulathur
Chennai – 603 203