11th August 2025
Valedictorian Hall of Fame / Ling Lay Hiang
Ling Lay Hiang
Doctor of Philosophy
Integrative Sciences & Engineering Programme
I am Lay Hiang, from the Integrative Sciences and Engineering Programme (ISEP) at the National University of Singapore (NUS). I completed my doctoral research under the mentorship of Associate Professor Yew Wen Shan, based in the Department of Biochemistry and the Synthetic Biology Translational Research Programme (SynTRP) at the Yong Loo Lin School of Medicine, NUS.
What sparked your interest in this field?
As an undergraduate, I explored diverse research areas, from plant biology to cancer, through projects in Biological Sciences, Biochemistry, and the NUS Synthetic Biology for Clinical and Technological Innovation (SynCTI). These experiences nurtured my interest in interdisciplinary science and deepened my belief in using synthetic biology to bridge fundamental research with real-world solutions.
Many of us came here seeking for answers, but as we take our leave, we know that it's the questions that matter more.
Any key breakthroughs or proud milestones in your work so far?
During my PhD, I focused on enzyme and host engineering to develop microbial systems capable of scalable and sustainable lipid production. A key highlight was seeing my research contribute to a patent application and demonstrate its potential industrial use.
Dr. Ling Lay Hiang (third row, fifth from right) with her PhD graduating class at the 2025 commencement ceremony.
The dots only connect in hindsight. Each experience, even those marked by doubt or regret, adds value by shaping and strengthening the path ahead.
What is one piece of advice you would give to someone considering a PhD in your programme?
Through my PhD journey, I came to value the importance of being intentional—in learning, in doing, and in collaborating with people who support both personal and professional growth. One of the biggest takeaways has been the importance of connecting the dots between ideas, people, and purpose. I am grateful to my mentors, lab mates, collaborators, family, and friends for their constant support throughout this journey.
Having graduated, what do you think your next steps would be?
Currently, I am working as a research scientist at a biotechnology startup, where I contribute to developing microbial platforms for the production of high-value compounds. In this role, I continue to pursue my interest in translational science, combining academic rigor with industrial relevance, while building expertise in early-stage innovation and product development.