Song Keang Peng

Associate Professor and Deputy Head of School (Education)
School of Science

Secondary: +603 5514 6094
Room 4-8-07

Associate Professor Song Keang Peng completed his Bachelors of Dental Surgery in 1988 at the Chung Shan Medical University, Taiwan before undertaking a PhD at the Health Sciences Center, Texas Tech University, USA in 1995 in the areas of medical and dental microbiology, molecular biology and biochemistry.   His current research interests are in the molecular pathogenesis of infectious diseases, in particular periodontal diseases and pseudomembranous colitis.

Associate Professor Song's leadership roles within the School are varied. He was Head of the School of Science (2008-2012) and currently serve as Deputy Head of School (Education).  Externally, he has served as a member of an expert panel - APEC project meeting on DNA-analysis for human health in the post genomic era, Thailand (2003), and an expert scientist on anaerobic bacteriology - Water quality program on reclaimed water, Singapore National NEWater project (1999-2002).


  • Doctor of Philosophy, Texas Tech University Health Sciences Center, USA, 1995
  • Bachelor of Dental Surgery (BDS), Chung Shan Medical and Dental College, Taiwan (now Chun Shan Medical University), 1988


Medical and dental microbiology, molecular biology, biochemistry

Research Interests

Microbiology, molecular biology, molecular pathogenesis of bacterial diseases, regulation of bacterial toxin expression, epidemiology and pathogenesis of periodontal diseases.


  • BIO1022 (Life on Earth)
  • BTH2741 (Biochemistry)

Conference Papers

BH Ang, WH Lee, WS Chen, KK Yap, KP Song, J Oxley. 2018. Transitioning from driver to non-driver: Be safe and not a risk. Australasian Road Safety Conference, 2018, Sydney, New South Wales, Australia.

Book chapters

Chow TK, Inglis TJJ, Song KP (2006) Microbes in medical biotechnology. In Microbial Biotechnology: Principles and Applications (2nd ed). Lee YK (Ed). World Scientific Publishing. pp 537-622

Scholarly Journals

Boon Hong Ang, Jennifer Anne Oxley, Won Sun Chen, Michelle Khai Khun Yap, Keang Peng Song, Shaun Wen Huey Lee. 2020. The influence of spouses and their driving roles in self-regulation: A qualitative exploration of driving reduction and cessation practices amongst married older adults. PLoS one, 15(5), e0232795

Boon Hong Ang; Shaun Wen Huey Lee; Won Sun Chen; Khai Khun Yap; Keang Peng Song; Jennifer Anne Oxley. 2020. Retiring from driving and riding: Be safe and not a risk. Journal of Transport and Health. 18, 100874.

Lee SWH Ang BH, Oxley JA, Chen WS, Yap MKK, Song KP. 2019. To reduce or to cease: A systematic review and meta-analysis of quantitative studies on self-regulation of driving. Journal of Safety Research, 70, 243-251.

Boon Hong Ang, Shaun Wen Huey Lee, Jennifer Oxley, Khai Khun Yap, Keang Peng Song, SB Kamaruzzaman, AV Chin, KM Tan, HM Khor, Won Sun Chen. 2019. Self-regulatory driving and riding practices amongst older adults in Malaysia. Transportation Research Part F: Traffic Psychology and Behaviour, 62, 782-795.

How, KY, Song KP, Chan, KG (2016) Porphyromonas gingivalis: an overview of periodontopathic pathogen below the gum line. Frontiers in (review article)

Soga T, Wong DW, Putteeraj M, Song KP, Parhar IS (2012) Early-life citalopram-induced impairments in sexual behavior and the role of androgen receptor. Neuroscience. 225:172-184.

Goh S, Ong PF, Song KP, Riley TV, Chang BJ (2007) The complete genome sequence of Clostridium difficilephage C2 and comparisons to CD119 and inducible prophages of CD630. Microbiology (UK). 153: 676-685.

Koh TH, Tan AL, Wang G and Song KP (2007) Epidemiology of Clostridium difficile infection in a large teaching hospital in Singapore. Pathology. 39:438-442

George S, Kishen A, Song KP (2005) Investigation on the role of environmental changes on monospecies biofilm formation on root canal wall by Enterococcus faecalisJournal of Endodontics. 31:867-872.

Lee ASY, Song KP (2005) LuxS/Autoinducer-2 (AI-2) quorum sensing molecule regulates transcriptional virulence genes expression in Clostridium difficileBiochemical and Biophysical Research Communications 335: 659-666.

Tan KS, Ong G, Song KP (2005) Introns in cytolethal distending toxin gene of Actinobacillus actinomycetemcomitansJournal of Bacteriology 187: 567-575.

Angeles DC, Song KP (2005) Peptide antibiotic and actin-binding protein as mixed-type inhibitors of Clostridium difficile CDT toxin activities. Biochemical and Biophysical Research Communications 327: 361-370.

Lui JN, Sae-Lim V, Song KP, Chen NN (2004) In vitro antimicrobial effect of chlorhexidine-impregnated gutta percha points on Enterococcus faecalisInternational Endodontic Journal 43:105-113.

Yeo CC, Wong MV, Song KP and Poh CL (2003) Molecular characterization of an inducible gentisate 1, 2-dioxygenase gene, xlnE, from Pseudomonas alcaligenes NCIB 9867. 2003. Gene. 312:239-248

No content

PhD student (Present)

  1. Chua Ru Wei (Co-supervision)
  2. Allan Ng Wee Ren (Co-supervision)
  3. Md Moinul Hoque (Co-supervision)
  4. Priyanka Parhi (Co-supervision)
  5. Madhuri Pulijala (Co-supervision)
  6. Allimalar Sathiaseelan (Co-supervision)
  7. Tammy Tan Xing Mei (Co-supervision)
  8. Tiew Kai Hao (Co-supervision)
  9. Wong Yin Cheng (Co-supervision)

PhD student (Completed)

  1. How KY - Medical and dental microbiology

Professional Association

Engagement with Premier Public Universities

  • High impact research fund (Faculty of Dentistry, University of Malaya), Review member, 2011

Member of Professional Bodies

  • Research Grants Council, Hong Kong, China, Review member


  • Kishen A, George S, Neo CC, Song KP (2006) Method of treating microorganisms in the oral cavity via photodynamic therapy employing a non-coherent light source. US Patent 689997