Updates

10 Jan 2017

Dr. Lai will be presenting his latest work at the APS March Meeting 2017 on March 15.


13 Oct 2016

Dr. Lai will be presenting his work at MRS Fall Conference 2016 on December 1.


30 Jun 2016

Dr. Lai gave an invited presentation on "The Motion of Fluid on Nanostructured Surfaces" at the Jean Mandel Symposium 2016 held at Ecole Polytechnique.

Research

Highlights

Our Team

LAI, CHANG QUAN
PRINCIPAL INVESTIGATOR

Education

B.Eng. Mechanical Engineering, National University of Singapore, 2009

M.Eng. Materials Science and Engineering, Massachussetts Institute of Technology, 2010

Ph.D. Advanced Materials for Micro- and Nano- Systems, National University of Singapore, 2014


Postdoctoral Experience

Biomedical Engineering, National University of Singapore, 2014-2015

Biosystems & Micromechanics, Singapore-MIT Alliance for Research & Technology, 2015-2016

Materials & Mechanics, Swiss Federal Institute of Technology (ETH Zurich), 2016

Mechanical Engineering & Applied Physics, California Institute of Technology, 2016-


Awards

Temasek Research Fellowship, 2015/16

SMART Postdoctoral Fellowship, 2015

Singapore-MIT Alliance Fellowship, 2009

LKY, IES & PEB gold medals, 2009


Email: cqlai@ntu.edu.sg; cqlai@caltech.edu





























Dr. Lai received his B. Eng in Mechanical Engineering (NUS) in 2009, and was awarded the LKY, IES and PEB gold medals for graduating top of his class. He then accepted the Singapore-MIT Alliance (SMA) Fellowship and earned the M.Eng in Materials Science and Engineering (MIT) in 2010 for his study on the technical and financial feasibility of incorporating biomimetic shock absorbent designs into motorcycle helmets. He received his Ph.D. in Advanced Materials for Micro- and Nano- Systems under the same SMA Fellowship in 2014. His doctoral dissertation, which examined the the interaction dynamics between liquid droplets and nanostructures, was jointly supervised by Prof. Wee Kiong Choi (NUS) and Prof. Carl V. Thompson (MIT) .

Following this, Dr. Lai completed a year of postdoctoral studies in the Biomedical Engineering department in NUS, researching on the fluid dynamics of fetal heart chambers, as well as the interfacial mechanics between red blood cells and superhydrophobic surfaces. In 2015, he received the SMART Postdoctoral Fellowship to investigate the effects that nanostructures have on bacterial behaviour under Prof. Patrick Doyle (MIT). In 2015/2016, Dr. Lai was awarded the Temasek Research Fellowship to conduct independent research as a Principal Investigator in the field of Protective Materials. He is currently working with Prof. Chiara Daraio on mechanical metamaterials as a visiting scientist/ senior postdoc in ETH Zurich and Caltech.


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Postdoctoral Associate

See "Opportunities" Below

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Postdoctoral Associate

See "Opportunities" Below

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Research Engineer

See "Opportunities" Below

Publications

Journals

15. Wiputra, H., Lai, C.Q., Lim, G. L., Guo, D., Seah, J., Muhammad J., Mattar, C., Biswas, A., Yap, C.H. Mechanics of flow in fetal right ventricles (Accepted in Heart). PDF

14. Yap, C.H., Lai, C.Q., Loh, I.G.H., Ong, T.Z. Non-Linear Flow Rate Response to Pumping Frequency and Reduced Hemolysis in the Drastically Under-Occluded Pulsatile Roller Pump. (Accepted in Artificial Organs) PDF

13. *Lai, C. Q., Shen, J. C. W., Cheng, W. C. W. & Yap, C. H. A near-superhydrophobic surface reduces hemolysis of blood flow in tubes. RSC Adv. 6, 62451-62459 (2016). (Highlighted by Chemistry World, see 'In the News' above) PDF

12. Lai, C.Q., Lim, G. L., Muhammad J., Mattar, C., Biswas, A., Yap, C.H. Fluid mechanics of flow in fetal left ventricles based on patient-specific 4D ultrasound scans. Biomech. Model Mechanobiol. (2015). doi:10.1007/s10237-015-0750-5 PDF

11. Lai, C. Q., Zheng, W., Choi, W. K. & Thompson, C. V. Metal assisted anodic etching of silicon. Nanoscale 7, 11123-11134 (2015). PDF

10. Lai, C. Q. & Choi, W. K. Unidirectional Wetting in the Hydrophobic Wenzel Regime. Adv. Mater. Interfaces 2, 1400444 (2015). PDF

9. *Lai, C. Q. & Cheng, H. Versatile fabrication and applications of dense, orderly arrays of polymeric nanostructures over large areas. J. Mater. Chem. B 2, 5982-5991 (2014). PDF

8. Lai, C. Q., Mai, T. T., Zheng, H., Zheng, W., Lee, P. S., Leong, K. C., Lee, C. & Choi, W. K. Effects of structural and chemical anisotropy of nanostructures on droplet spreading on a two dimensional wicking surface. J. Appl. Phys. 116, 034907 (2014). PDF

7. Lai, C. Q. & Choi, W. K. Synthesis of free-standing, curved Si nanowires through mechanical failure of catalyst during metal assisted chemical etching. Phys. Chem. Chem. Phys. 16, 13402-13408 (2014). PDF

6. Lai, C. Q., Mai, T. T., Zheng, H., Lee, P. S., Leong, K. C., Lee, C. & Choi, W. K. Droplet spreading on a two-dimensional wicking surface. Phys. Rev. E 88, 062406 (2013). PDF

5. Lai, C. Q., Cheng, H., Choi, W. K. & Thompson, C. V. Mechanics of Catalyst Motion during Metal Assisted Chemical Etching of Silicon. J. Phys. Chem. C 117, 20802-20809 (2013). PDF

4. Lai, C. Q. Mai, T. T., Zheng, H., Lee, P. S., Leong, K. C., Lee, C. & Choi, W. K. Influence of nanoscale geometry on the dynamics of wicking into a rough surface. Appl. Phys. Lett. 102, 053104 (2013). PDF

3. Mai, T. T., Lai, C. Q., Zheng, H., Balasubramanian, K., Leong, K. C., Lee, P. S., Lee, C. & Choi, W. K. et al. Dynamics of Wicking in Silicon Nanopillars Fabricated with Interference Lithography and Metal-Assisted Chemical Etching. Langmuir 28, 11465-11471 (2012). PDF

2. Lai, C. Q., Thompson, C. V. & Choi, W. K. Uni-, Bi-, and Tri-Directional Wetting Caused by Nanostructures with Anisotropic Surface Energies. Langmuir 28, 11048-11055 (2012). PDF

1. Zhu, M. Zhou, L., Li, B., Li, Dawood, M. K., Wan, G., Lai, C. Q., Cheng, H., Leong, K. C., Rajagopalan, R., Too, H. P., & Choi, W. K., Creation of nanostructures by interference lithography for modulation of cell behavior. Nanoscale 3, 2723-2729 (2011). PDF


Conference Proceedings

1. Lai, C. Q., Thompson, C. V. & Choi, W. K. Manipulation of Wetting Directions Using Nanostructures with Asymmetric Surface Energies. MRS Online Proc. Libr. 1648, HH 3.04 (2014).

Opportunities



Postdoctoral Position 1


Duties and responsibilities

We are currently seeking highly motivated individuals with experience in impact mechanics and micro-/ nano- fabrication to fill a Postdoctoral Associate position by 1 September 2017. The selected candidate is expected to design and synthesize new micro-/ nano- materials and carry out impact testing and analysis on these materials. Benefits will be highly competitive and commensurate with the candidate's experience and qualifications.

Requirements

- Ph.D. or soon-to-be-earned Ph.D. in Mechanical Engineering, Materials Science and Engineering or related discipline
- Research experience and track record of publications in experimental impact mechanics
- Experience in micro-/nano- fabrication and proficiency in 3D CAD softwares (e.g. Solidworks) are highly valued but not mandatory

Interested candidates are requested to submit, via e-mail, full CV/ resume and contact information of up to 3 references to Dr. Lai Chang Quan at cqlai@ntu.edu.sg. We regret that only shortlisted candidates will be notified.






Postdoctoral Position 2


Duties and responsibilities

We are currently seeking highly motivated individuals with experience in acoustic/ vibration engineering and micro-/ nano- fabrication to fill a Postdoctoral Associate position by 1 September 2017. The selected candidate is expected to design and synthesize new micro-/ nano- metamaterials and carry out acoustic/ vibration testing and analysis on these materials. Benefits will be highly competitive and commensurate with the candidate's experience and qualifications.

Requirements

- Ph.D. or soon-to-be-earned Ph.D. in Mechanical Engineering, Materials Science and Engineering or related discipline
- Research experience and track record of publications in expeirmental acoustic/ vibration engineering
- Experience in micro-/nano- fabrication, metamaterial design and proficiency in 3D CAD softwares (e.g. Solidworks) are highly valued but not mandatory

Interested candidates are requested to submit, via e-mail, full CV/ resume and contact information of up to 3 references to Dr. Lai Chang Quan at cqlai@ntu.edu.sg. We regret that only shortlisted candidates will be notified.






Research Associate


Duties and responsibilities

We are currently seeking highly motivated individuals to fill a Research Associate position by 1 September 2017. The selected candidate is expected to assist in the development of advanced micro-/ nano- manufacturing tools and carry out synthesis and characterization of new micro-/ nano- materials. Benefits will be highly competitive and commensurate with the candidate's experience and qualifications.

Requirements

- B. Eng./ M. Eng. (or equivalent) in Mechanical Engineering, Materials Science and Engineering, Electrical Engineering or related discipline
- Research experience and education in micro-/nano- fabrication
- Proficiency in 3D CAD softwares (e.g. Solidworks) and MATLAB are highly valued but not mandatory

Interested candidates are requested to submit, via e-mail, full CV/ resume and contact information of up to 3 references to Dr. Lai Chang Quan at cqlai@ntu.edu.sg. We regret that only shortlisted candidates will be notified.








Tribute


Prof. Choi, Wee Kiong
Electrical and Computer Engineering, NUS
1959 - 2015
Personal Website


Prof. Choi was a full professor in the department of Electrical and Computer Engineering (ECE) in the National University of Singapore (NUS). He graduated from the University of Edinburgh with BSc (1st Class Honours) in 1982 and Ph.D. in 1986. He also received his MBA in 1991 and D.Sc. in 2015 from his Alma Mater.


He joined NUS in 1991 as a lecturer and became the supervisor of the Microelectronics Laboratory in 1993. He was promoted to an Associate Professor in 1998 and then to full Professor in 2006. He was the Co-Chair for the Advanced Materials for Micro- and Nano- Systems (AMMNS) division under the Singapore-MIT Alliance programme, and was the Deputy Head (Administration) of the ECE department from 2008 to 2012. Over the course of his career, he graduated 29 Ph.D. students and 30 M.Eng students.


Prof. Choi is a highly regarded scientist both in Singapore and MIT, where he was a visiting professor from 2007-2010. He is fondly remembered for his strong leadership, contagious passion for research and most of all, his concern for students under his charge, often placing their career interests over his own. He never failed to encourage and motivate students to achieve the very best that they could, and many today owe their success to him.


In 2012, Prof. Choi was diagnosed with Stage 2 colon cancer. Following 2 unsuccessful surgeries to remove the cancer cells, Prof. Choi was placed on chemotherapy in 2014. Despite the health concerns, he continued to guide and advise his students, and in 2015, graduated his personal record of 7 Ph.D. students in a year. On 13 November 2015, approximately a week after an intestinal rupture, Prof. Choi passed on.


This is just a simple tribute to remember a man who has blessed many countless others, of whom I am one of them.



"The most useful research are those that offer simple solutions to complex problems."

-- Prof. Choi Wee Kiong



8 July 2015. Prof. Choi in D.Sc. robes and Dr. Lai at his Ph.D. graduation ceremony.