The School of Arts & Sciences

Department of Natural Sciences

Tarek Na'was

Dr. Tarek Na’was is an associate professor of biology/pharmacy. He previously served as dean of students in LAU Beirut (1998-2010).

He served as an assistant professor at the Yarmouk University (1983-1987) and then the Jordan University for Science and Technology (1987-1988), where he was promoted to associate professor and later appointed Chair of the Allied Health Sciences Department of the School of Medicine (1989-1991).

He underwent postdoctoral training in the Special Bacteriology Laboratory of the Centers for Disease control and Prevention in Atlanta, Georgia, USA, in 1985.

Dr. Na’was was granted the “Shouman Award” for Young Arab Scientists in the field of Basic Medical Sciences in 1993 and the Fulbright Research Grant in 1994.

He has several publications in recognized and reputable international journals and has contributed to many professional conferences, seminars and workshops.


  1. Abou Raji El Feghali P, Nawas T. (2018). Extraction and purification of pyocyanin: a simpler and more reliable method. MOJ Toxicol. 4(6):417‒422. DOI: 10.15406/mojt. 2018.04.00139
  2. Raji El Feghali, PA. and Nawas T. (2018). Pyocyanin: A Powerful Inhibitor Of bacterial Growth and Biofilm Formation. Madridge J Case Rep Stud. 18; 2(2): 101-107. doi: 10.18689/mjcrs-1000125
  3. Iskandar, S., Saif, A. and Nawas, T. (2018). Isolation of Potentially Pathogenic Bacteria from Public Service Cars Door Handles. Int. J. Curr. Microbiol. App. Sci. 7(12): 1154-1159. doi: Feghali PAR, Ibrahim R, Nawas T. (2018). Antibacterial activity of Curcuma longa, Opuntia ficus-indica and Linum usitatissimum. MOJ Toxicol. 4(3):214‒220. DOI: 10.15406/mojt.2018.04.00102
  4. Ranim Kassir R.,Tarek Nawas T. (2018). Elevator Buttons: An Unrealized Potential Health Hazard International Journal of Academic Health and Medical Research (IJAHMR). 2(5): 1-5
  5. Feghali PAREI, Ibrahim R, Nawas T. (2018). Antibacterial activity of curcumin against Lebanese clinical isolates of Staphylococcus aureus. MOJ Toxicol. 4(2):81‒83. DOI: 10.15406/mojt.2018.04.00094
  6. Jaafar, M. Mitri, S. and Nawas, T. (2018). Inhibition of Gram Negative Bacterial Growth and Biofilm Formation by Alpha Thujone. IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS). 13(2 vii): 40-47
  7. Fakhoury, S. and Nawas, T. (2018). Contamination of the Internal Handles/Knobs of Public Restroom Doors with Potentially Pathogenic Bacteria. Int.J.Curr.Microbiol.App.Sci. 7(03): 3434-3440.
  8. Keyrouz, E., Abou Raji El Feghali, P., Jaafar, M. and Nawas, T. (2017). Malva neglecta: A natural inhibitor of bacterial growth and biofilm formation. Journal of Medicinal Plants Research. 11 (24): 380-386 (2017).
  9. Maamari, J. and Nawas, T. (2017). Contamination of the shells of Lebanese free range chicken eggs with potential pathogens. International Journal of Advanced Research (IJAR).  5 (6): 149-154
  10. .
  11. Dakroub, R. and Nawas, T. (2017). Vending machine buttons and touch screens. A surface colonized by pathogenic bacteria.  International Journal of Innovative and Applied Research. 5 (5): 82-88.
  12. Al Koussa, H. and Nawas, T. (2017). Bacterial Contamination of Urban Water Wells in the Nuwayri Region of Beirut – Lebanon. IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT) 11 (5): 81-85. .
  13. Nawas, G.T., Nawas, T., Malaeb, D., El Helou, S. and Hallit, S. (2016). Assessing the Appropriate Use of Proton Pump Inhibitors amongst the Outpatient Lebanese Population. Int.J.Curr.Microbiol.App.Sci. 5(10): 767-777.  doi:
  14. Banna, H. and Nawas, T. (2016). Salmonella: A common contaminant of Chicken Shawarma in Ras-Beirut Restaurants. IOSA Journal of Environmental Sciences, Toxicology and Food Technology (IOSR-JESTFT). 10 (8): 19-22.
  15. Fawaz, A., Rteil, A., Itani, M., & Na’was, T. (2015). Staphylococcus aureus: A Common Contaminant of Coleslaw in Local Ras-Beirut Restaurants. Asian Journal of Agriculture and Food Sciences 3(06).
  16. Hamzeh, F. and Na’was, T. (2015). Computer mice in public centers: A source of pathogenic bacteria. ARPN Journal of Science and Technology. 5 (11): 537-539.
  17. Iyer, A., Barbour, E., Azhar, E., El Salabi, A., Hassan, H., Qadri, I., Chaudhary, A., Abuzenadah, A., Kumosani, T., Damanhouri, G., Alawi, M., Na’was, T. Abdel Nour, A. and Harakeh, S. (2013). Transposable elements in Escherichia coli antimicrobial resistance. Advances in Bioscience and Biotechnology. 4: 415-423.
  18. Na’was, T. On-line Registration: A blessing or a curse (In Arabic). (2004). On the Way: Proceedings of the XXIV Arab AACRAO conference. Beirut. Lebanon. March 31 to April 3, 2003. cited 22: 115 – 142
  19. Essawi, T., Na’was, T., Hawwari, A., Wadi, S., Doudin, A., & Fattom, A. I. (1998). Molecular, antibiogram and serological typing of Staphylococcus aureus isolates recovered from Al‐Makased hospital in East Jerusalem. Tropical Medicine & International Health, 3(7), 576-583. DOI:
  20. Na’was, T., Hawwari, A., Hendrix, E., Hebden, J., Edelman, R., Martin, M. & Fattom, A. I. (1998). Phenotypic and genotypic characterization of nosocomial Staphylococcus aureus isolates from trauma patients. Journal of clinical microbiology, 36(2), 414-420.
  21. Na’was, T. E., Mawajdeh, S., Dababneh, A., & Al-Omari, A. (1994). In vitro activities of antimicrobial agents against Proteus species from clinical specimens. British journal of biomedical science, 51(2), 95-99.
  22. Na’was, T., & Alkofahi, A. (1994). Microbial contamination and preservative efficacy of topical creams. Journal of clinical pharmacy and therapeutics, 19(1), 41-46. DOI:
  23. Na’was, T. and Al-Ali, A.M. (1994). Clinical significance of coagulase negative staphylococci in a Jordan hospital. In: Staphylococci and Staphylococcal Infections (Proceedings of the 7th. International Symposium). Mollby, R., Flock, J.-I., Nord, C.E., and Christensson (editors). Zentralb. Bakteriol. Suppl. 26. Gustav FisherVerlag, New York.  pp. 139-143.
  24. Lafi, S.Q., Al-Rawashdeh, O.F., Na’was, T.E. and Hailat, N. (1994). A national cross-sectional study of mastitis in dairy cattle in Jordan. Trop. Anim. Health Prod. 26 (3): 168-74 .
  25. Na’was, T.E. (1993). Methicillin resistant Staphylococcus aureus in clinical specimens of a Jordan Hospital. J. Hosp. Inf. 25:71-72.
  26. Alkaysi, H. N., Abdel-Hay, M. H., Salem, M. S., Gharaibeh, A. M., & Na’was, T. E. (1992). Chemical and microbiological investigations of metal ion interaction with norfloxacin. International journal of pharmaceutics, 87(1), 73-77. DOI:
  27. Na’was, T., & Mawajdeh, S. (1991). The role of day care givers in the identification and prevention of infections. Social Science & Medicine, 33(7), 859-862. DOI:
  28. Na’was, T. E., & Abo-Shehada, M. N. (1991). A study of the bacterial and parasitic causes of acute diarrhoea in northern Jordan. Journal of diarrhoeal diseases research, 305-309.
  29. Sunna, E., EL-Daher, N., Bustami, K. and Na’was, T. (1990). A study of group B streptococcal carrier state during late pregnancy. Tropical and geographical medicine, 43(1-2), 161-164.
  30. Na’was, T., & Fakhoury, J. (1991). Nasal carriage of methicillin-resistant Staphylococcus aureus by hospital staff in north Jordan. Journal of Hospital Infection, 17(3), 223-229. DOI:
  31. El-Daher, N., Na’was, T., & Al-Qaderi, S. (1990). The effect of the pH of various dairy products on the survival and growth of Brucella melitensis. Annals of tropical medicine and parasitology, 84(5), 523-528.
  32. Al‐Arab, M. M., Abu‐Yousef, I. A., & Na’was, T. E. (1990). Stereoselective synthesis of new 2, 3‐diarylglutaramides and their antibacterial activity. Toxicological & Environmental Chemistry, 27(4), 277-284. DOI:
  33. Takrouri, M. S., El Daher, N., & Nawas, T. (1990). Recolonization of anesthetic instruments after regular treatment with potentially pathogenic organisms. Middle East journal of anaesthesiology, 10(5), 479-487.
  34. Na’was, T. E., Salem, M. S., & Alkaysi, H. N. (1990). Microbial contamination nd preservation efficacy of cough preparations. Journal of clinical pharmacy and therapeutics, 15(5), 365-369. DOI:
  35. Al-Arab, M.M., Na’was, T.E., and Abu-Yousef I.A. (1990). Synthesis of 2,3 Diarylglutaramides and their antibacterial activity. Indian J. chem. 29B: 694-696.
  36. Na’was, T. E., Hollis, D. G., Moss, C. W., & Weaver, R. E. (1987). Comparison of biochemical, morphologic, and chemical characteristics of Centers for Disease Control fermentative coryneform groups 1, 2, and A-4. Journal of clinical microbiology, 25(8), 1354-1358.

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