Dr. W.D. Sajeewa Pemasinghe

Dean - Faculty of Computing and Information Technology

PhD in Computational Modeling and Simulations (Wayne State University) (USA), MSc in Information Technology (SLIIT), BSc (Hons) in Computing (Wrexham University, UK), BSc (Hons) in Chemistry (UoK), HDip. in Information Technology (UoC)

Academic Qualifications

Doctor of Philosophy in Computational Modeling and Simulations, Wayne State University, United States.
Master of Science in Information Technology, Sri Lanka Institute of Information Technology (SLIIT), Sri Lanka.
Bachelor of Science (Hons) in Computing, Wrexham University, United Kingdom.
Bachelor of Science (Hons) in Chemistry, University of Kelaniya, Sri Lanka.
Higher Diploma in Information Technology, University of Colombo, Sri Lanka.
Certificate in Machine Learning, Stanford University, United States.
Certificate in Data Analysis in Python, IBM, United States.
Certificate in Advanced Robotics, Sri Lanka Institute of Robotics.

Research Publications

L. Zhao, S. W. Dewage, M. J. Bell, K.-M. Chang, S. Fatma, N. Joshi, G. Silva, G. A. Cisneros, and T. L. Hendrickson, “The Kinase Activity of the Helicobacter pylori Asp-tRNA Asn /Glu-tRNA Gln Amidotransferase Is Sensitive to Distal Mutations in Its Putative Ammonia Tunnel,” Biochemistry, vol. 51, no. 1, pp. 273–285, Jan. 2012, doi: 10.1021/bi201143x.
S. W. Dewage and G. A. Cisneros, “Computational Analysis of Ammonia Transfer Along Two Intramolecular Tunnels in Staphylococcus aureus Glutamine-Dependent Amidotransferase (GatCAB),” J. Phys. Chem. B, vol. 119, no. 9, pp. 3669–3677, Mar. 2015, doi: 10.1021/jp5123568.
R. Bonomi, U. Mukhopadhyay, A. Shavrin, H.-H. Yeh, A. Majhi, S. W. Dewage, A. Najjar, X. Lu, G. A. Cisneros, W. P. Tong, M. M. Alauddin, R.-S. Liu, T. J. Mangner, N. Turkman, and J. G. Gelovani, “Novel Histone Deacetylase Class IIa Selective Substrate Radiotracers for PET Imaging of Epigenetic Regulation in the Brain,” PLOS ONE, vol. 10, no. 8, p. e0133512, Aug. 2015, doi: 10.1371/journal.pone.0133512.
A. C. Pratt, S. W. Dewage, A. H. Pang, T. Biswas, S. Barnard-Britson, G. A. Cisneros, and O. V. Tsodikov, “Structural and computational dissection of the catalytic mechanism of the inorganic pyrophosphatase from Mycobacterium tuberculosis,” J. Struct. Biol., vol. 192, no. 1, pp. 76–87, Oct. 2015, doi: 10.1016/j.jsb.2015.08.010.
L. Zhao, U. M. Rathnayake, S. W. Dewage, W. N. Wood, A. J. Veltri, G. A. Cisneros, and T. L. Hendrickson, “Characterization of tunnel mutants reveals a catalytic step in ammonia delivery by an aminoacyl‐ tRNAamidotransferase,” FEBS Lett., vol. 590, no. 18, pp. 3122–3132, Sep. 2016, doi: 10.1002/1873-3468.12347.
D. Shetty, T. Skorjanc, J. Raya, S. K. Sharma, I. Jahovic, K. Polychronopoulou, Z. Asfari, D. S. Han, S. Dewage, J.-C. Olsen, R. Jagannathan, S. Kirmizialtin, and A. Trabolsi, “Calix[4]arene-Based Porous Organic Nanosheets,” ACS Appl. Mater. Interfaces, vol. 10, no. 20, pp. 17359–17365, May 2018, doi: 10.1021/acsami.8b03800.
A. Srivastava, R. Timsina, S. Heo, S. W. Dewage, S. Kirmizialtin, and X. Qiu, “Structure-guided DNA–DNA attraction mediated by divalent cations,” Nucleic Acids Res., p. gkaa499, Jun. 2020, doi: 10.1093/nar/gkaa499.
S. Pemasinghe and P. K. W. Abeygunawardhana, “Simulated Annealing and It’s Application in Molecular Structure Optimizations,” in 2021 10th International Conference on Information and Automation for Sustainability (ICIAfS), Negambo, Sri Lanka: IEEE, Aug. 2021, pp. 258–262. doi: 10.1109/ICIAfS52090.2021.9605818.
S. Pemasinghe and S. Rajapaksha, “Comparison of CPU Scheduling Algorithms: FCFS, SJF, SRTF, Round Robin, Priority Based, and Multilevel Queuing,” in 2022 IEEE 10th Region 10 Humanitarian Technology Conference (R10-HTC), Hyderabad, India: IEEE, Sep. 2022, pp. 318–323. doi: 10.1109/R10-HTC54060.2022.9929533.
S. Pemasinghe, D. Dayarathna, P. M. R A Panditharathna, S. Saparamadu, and J. Wickramarathne, “An Online Dashboard Platform for Weather Data of Major Sri Lankan Cities, and Global Climate Trends,” in 2022 IEEE Bombay Section Signature Conference (IBSSC), Mumbai, India: IEEE, Dec. 2022, pp. 1–6. doi: 10.1109/IBSSC56953.2022.10037514.
S. Pemasinghe and P. K. W. Abeygunawardhana, “Development of an Elephant Detection and Repellent System based on EfficientDet-Lite Models,” in 2023 International Conference for Advancement in Technology (ICONAT), Goa, India: IEEE, Jan. 2023, pp. 1–6. doi: 10.1109/ICONAT57137.2023.10079959.
S. Pemasinghe, "WaveCryptor: A Secure Hybrid Framework Combining Encryption and Steganography via Frequency Mapping," 2025 5th International Conference on Advanced Research in Computing (ICARC), Belihuloya, Sri Lanka, 2025, pp. 1-6, doi: 10.1109/ICARC64760.2025.10962964.