Research Area:

• Natural Rubber

• Biomaterials

• Polymer Composites

Research Grant: 

1. 2018, Potential of Spent Coffee As a Sustainable Biofiller for Green Natural Rubber Biocomposite, University Research Grant (RUI), Universiti Sains Malaysia, RM94, 660.00

2. 2015, Synthesis and Characterization of Kenaf Grafted Natural Rubber Composite, USM Short Term Grant, Universiti Sains Malaysia, RM47, 754.20

3. 2009, Modification and Characterization Natural Rubber and Epoxidized Natural Rubber, USM-RU-PRGS, Universiti Sains Malaysia, RM 18,500.00

Research Publication:

1. Igbmno, M.J., Mohammad Khalid., Gunasunderi Raju. et al. Effect of electron beam irradiation on durian-peel-based activated carbon for phenol removal. Carbon Lett. 33, 1161–1170 (2023). https://doi.org/10.1007/s42823-023-00484-5

2. Feven Mattews Michael, Lim Siew Shee, Gunasunderi Raju, Sarvesh Rustagi, Rashmi Walvekar, Vishal Chaudhary and Mohammad Khalid Biocompatibility of Poly-Lactic Acid/Nanohydroxyapatite/Graphene Nanocomposites for Load Bearing Bone Implants 2023 J. Electrochem. Soc. 170 027502, DOI 10.1149/1945-7111/acb7a2

3. Gunasunderi Raju, Shaban, M. M., Farag, R. K., Karunakaran, T., Khalid, M., Structure, morphology, thermal, and sorption characteristics of epoxidized natural rubber conjugated spent coffee via one-pot synthesis, J. Appl. Polym. Sci. 2022, e53286. https://doi.org/10.1002/app.53286

4. Gunasunderi Raju., Siddiqui, M.K., Abu Bakar, N.H.H., Epoxidised Natural Rubber Filled Spent Coffee Ground Green Biocomposites. J Polym Environ 30, 1415–1422 (2022). https://doi.org/10.1007/s10924-021-02280-6

5. Feven Mattews Michael, Mohammad Khalid, Ratnam Chantara Thevy, Gunasunderi Raju, Syed Shahabuddin, Rashmi Walvekar & Nabisab Mujawar Mubarak (2022) Graphene/Nanohydroxyapatite hybrid reinforced polylactic acid nanocomposite for load-bearing applications, Polymer-Plastics Technology and Materials, DOI: 10.1080/25740881.2022.2029885

6. Rasha S. Kamal, Mahmoud M. Shaban, Gunasunderi Raju, and Reem K. Farag., High-Density Polyethylene Waste (HDPE)-Waste-Modified Lube Oil Nanocomposites as Pour Point Depressants, ACS Omega 2021, 6, 47, 31926–31934, https://doi.org/10.1021/acsomega.1c04693

7. Krishnan, S, Gunasunderi Raju, Shawkataly, O. Prevalence of Work-Related Musculoskeletal Disorders: Psychological and Physical Risk Factors. International Journal of Environmental Research and Public Health. 2021; 18(17):9361. https://doi.org/10.3390/ijerph18179361

8. Michael FM, Khalid M, Gunasunderi Raju, Ratnam CT, Walvekar R, Mubarak NM. Viscoelastic Properties and Thermal Stability of Nanohydroxyapatite Reinforced Poly-Lactic Acid for Load Bearing Applications. Molecules.2021;26(19):5852. https://doi.org/10.3390/molecules26195852

9. Gunasunderi Raju, Mohammad Khalid, Mahmoud M. Shaban, and Baharin Azahari
   Preparation and Characterization of Eco-Friendly Spent Coffee/ENR50 Biocomposite in Comparison to Carbon Black. Polymers 13, 2021, no. 16: 2796. doi.org/10.3390/polym13162796

10. Mohammad Khalid, Chantara Thevy Ratnam, Shee Jia Wei, Mohammad Reza Ketabchi, Gunasunderi Raju, Rashmi Walvekar, Nabisab Mujawar Mubarak,
    Effect of electron beam radiation on POLY(LACTIC acid) biocomposites reinforced with waste tea powder, Radiation Physics and Chemistry, Volume 188, 2021, 109612, doi.org/10.1016/j.radphyschem.2021.109612.

11. Ahmed A. Farag, A.M. Eid, M.M. Shaban, Eslam A. Mohamed, Gunasunderi Raju
    Integrated modeling, surface, electrochemical, and biocidal investigations of novel benzothiazoles as corrosion inhibitors for shale formation well stimulation,Journal of Molecular Liquids,Volume 336, 2021, 116315, doi.org/10.1016/j.molliq.2021.116315.

12. Gunasunderi Raju, Mas Rosemal Hakim Mas Haris, A. R. Azura, and Ahmed Mohamed Ahmed Mohamed Eid
    Chitosan Epoxidized Natural Rubber Biocomposites for Sorption and Biodegradability Studies, ACS Omega 2020 5 (44), 28760-28766, DOI: 10.1021/acsomega.0c04081

13. Tahmina Monowar, Md. Sayedur Rahman, Subhash J. Bhore, Gunasunderi Raju, and Kathiresan V. Sathasivam, Secondary Metabolites Profiling of Acinetobacter baumannii Associated with Chili (Capsicum annuum L.) Leaves and Concentration Dependent Antioxidant and Prooxidant Properties, BioMed Research International, vol. 2019, Article ID 6951927, 13 pages.

14. Tahmina Monowar, Md. Sayedur Rahman, Subhash J. Bhore, Gunasunderi Raju and Kathiresan V. Sathasivam, Silver Nanoparticles Synthesized by Using Endophytic Bacteria Pantoea ananatis Are Promising Antimicrobial Agent against Multidrug Resistant Bacteria, Molecules, (2018) 23(12), 3220

15. Manroshan Singh, Sasitaran Munuganan And Gunasunderi Raju, Preparation of Kenaf Bast Fibre Dispersions for Use in Latex Products, Journal of Rubber Research (2018), 21, 256-276

16. M. Sasitaran, S. Manroshan, C.S. Lim, B. N. Krishna Veni, S.K. Ong and R. Gunasunderi, Preparation and Characterisation of Crosslinked Natural Rubber (SMR CV 60) and Epoxidised Natural Rubber (ENR-50) Blends ASEAN J. Sci. Technol. Dev., (2017) 34(2): 106 –118,

17. Gunasunderi R. and R. H. M. H. Mas, Adsorption and Diffusion Characteristics of 2-Naphthol from Aqueous Media by Chitosan-ENR Biocomposites ASEAN J. Sci. Technol. Dev.,(2017) 34(1): 1 – 16,

18. Venkateskumar, K., Parasuraman, S., Gunasunderi, R. et al.Acyclovir-Polyethylene Glycol 6000 Binary Dispersions: Mechanistic Insights. AAPS PharmSciTech (2016) 1-10. doi:10.1208/s12249-016-0686-9.

19. Venkateskumar K, Parasuraman S, Gunasunderi R, Sureshkumar K, Nayak MM, Shah SA, et al, Mechanistic insights into acyclovir-polyethylene glycol 20000 binary dispersions. Int J Pharma Investig 2016; 6:194-200..

20. Gunasunderi Raju, Mas Rosemal Hakim Mas Haris. Preparation And Characterization Of Acidified Chitosan Immobilized In Epoxidized Natural Rubber. Polymer Testing Polymer Testing Vol 53, (1–6), 2016,

21. M. R. H. Mas-Haris1, Gunasunderi Raju. Acid-Induced Reaction of ENR50 with Chitosan for the Preparation of Biocomposites Comprising Chitosan-grafted-ENR- eXPRESS Polymer Letters Vol.8, No.2 (2014) 85–94

22. Gunasunderi Raju, Mas Rosemal Hakim Mas Haris, A.R. Azura, A. Baharin And N. Kartini. Effect of Chitosan Loading on the Mechanical Properties, Water Uptake and Toluene Absorbency of High and Low Molecular Weight ENR50- Journal of Rubber Research JRR 16 (2) 2013

23. Gunasunderi Raju, Ma’zam Md Said, Md Aris Ahmad. Properties of kenaf fibre reinforced natural rubber composites, Journal of Rubber Research 11 (4), 2008 pp. 187-195

24. Gunasunderi Raju, Chantara Thevy Ratnam , Nor Azowa Ibrahim, Mohammad Zaki Ab. Rahman, Wan Md Zin Wan Yunus. Enhancement of PVC/ENR Blend Properties by Poly(Methyl Acrylate) Grafted Oil Palm Empty Fruit Bunch Fiber . Journal of Applied Polymer Science- Vol 110, (368-375)-2008

25. Chantara Thevy Ratnam, Gunasunderi Raju, Nor Azowa Ibrahim, Mohammad Zaki Ab Rahman, Wan Md Zin Wan Yunus. Characterization of Oil Palm Empty Fruit Bunch (OPEFB) Fiber Reinforced PVC/ENR Blend. Journal of Composite Materials, Vol. 42, No. 20, 2195-2204 (2008)

26. Gunasunderi Raju, Chantara Thevy Ratnam , Nor Azowa Ibrahim, Mohammad Zaki Ab. Rahman, Wan Md Zin Wan Yunus. Graft Copolymerization of Methyl Acrylate Onto Oil Palm Empty Fruit Bunch (OPEFB) Fiber. Polymer-Plastics Technology and Engineering, Volume 46, Issue 10 October 2007 , pages 949 - 955

27. Chantara Thevy Ratnam , Gunasunderi Raju, W.M.Z.W. Yunus. Oil Palm Empty Fruit Bunch (OPEFB) Fiber Reinforced PVC/ENR Blend-Electron beam Irradiation. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Volume 265, Issue 2, December 2007, Pages 510-514

Other Publication:

1. Gunasunderi Raju, Ma’zam Said, Reduction of Viscosity of Natural rubber latices by Depolymerization, Malaysian Rubber Technol. Development., Vol. 9 (1) (2009),

2. Gunasunderi Raju, Md. Aris, Kenaf Fibre - PP/EPDM Composite, Malaysian Rubber Technology Development, Vol. 7 (1) (2007)

PhD (On-going): 

1. Abdul Halim Bin Hashim, Developing a Taxonomy of Permit To Work (PTW) Systems in Malaysian Industries

2. Mao Yongchun, The Association of Occupational Stress With Sleep Quality And Work-Related Musculoskeletal Disorders (WRMSDS) Among Chinese Industrial Designers In Shenzhen

Master (Completed): 

1. Saraswathi A/P Krishnan, Graduated 2022, Prevalence and Risk Factors of Work-Related Musculoskeletal Disorders (Wrsmsds) Among Nurses in Hospital Sultan Abdul Halim, Kedah, Malaysia

2. Jamil Bin Abdullah @ Othman,Graduated 2023, The Effectiveness Of Fire Safety Measures Of Government Hospital Buildings In Johor, Malaysia

Master (On-going): 

1. Pravin Stephen a/l Michel, An Investigation and Analysis Of Fall In The Construction Industry At Northern Region, Malaysia.

2. Ng Chee Keong,

3. Bala Krishnan Sarthasevan, Preparation and Characterization Of Chitosan/ Spent Coffee Based Bioplastic With Deep Eutectic Solvent As A Green Plasticizer.

Awards:

1. Anugerah Sanggar Sanjung Award 2022, Publication Category, Universiti Sains Malaysia

2. Sanggar Sanjung Award 2021, Publication Category, Universiti Sains Malaysia.

3. Sanggar Sanjung Award 2020, Publication Category, Universiti Sains Malaysia.

4. Sanggar Sanjung Award 2018, Publication Category, Universiti Sains Malaysia.

5. Sanggar Sanjung Award 2017, Publication Category, Universiti Sains Malaysia.

6. Excellence Service Award 2017, Universiti Sains Malaysia.

Recognitions:

1. Visiting Senior Research Fellow, Visiting Senior Research Fellow, 01/10/2021-30/09/2022, Sunway University Malaysia

2. Visiting Senior Research Fellow, Visiting Senior Research Fellow, 02/01/2021-01/10/2021, Sunway University Malaysia

3. Occupational Safety and Health Officer, National Institute of Occupational Safety and Health

4. Member of the Royal Society of Chemistry

5. Member of Institut Kimia Malaysia (Associate) A/2442/5067/2007

6. Member of American Chemical Society

7. Member of International Union of Pure And Applied Chemistry

Consultancy:

1. Co-Consultant for the Malaysian Indian Blueprint (MIB) Revaluation Study and the Indian Community Action Plan (PTMI)

Community Engagement:

1. Vice President of Sekretariat Khidmat Masyarakat Thaipusam

2. Committee member of Parents Teachers Association (PIBG) SJK (T) Mak Mandin