Associate Professor EUR ING. Ts Dr Yeap Swee Pin
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Associate Professor EUR ING. Ts Dr Yeap Swee Pin

Associate Professor | Department of Chemical & Petroleum Engineering

Academic Qualifications

PhD Chemical Engineering (Major in Nanoscience and Technology) 

Bachelor of Chemical Engineering with Honours 

Postgraduate Diploma in Tertiary Teaching

Areas of Interest
Fabrication of Flexible Electronic Devices/Sensor with Composite Nanoparticles
Nanoparticle Synthesis, Functionalization, Characterization, and Performance Evaluation
Colloidal Stability and Interfacial Interactions in Nanoparticle System
Magnetic Nanoparticles and its Magnetophoresis Behavior
Role of Environmental Media on the Fate and Transportation of Nanoparticles
Environmental Nanoremediation
Professional Bodies

  1. Graduate Engineer of the Board of Engineers Malaysia (BEM) (Membership number: 108965A)
  2. Institution of Engineering and Technology (IET) (Membership number: 1100858981) 
  3. Regular member of the American Chemical Society (ACS) (Membership number: 30812484) 
  4. Chartered Engineer of Institution of Engineering and Technology, UK (Registration number: 682188)
  5. European Engineer of Fédération Européenne d'Associations Nationales d'Ingénieurs (FEANI) (Membership number: 34723)
  6. Professional Technologist and Graduate Technologies of Malaysia Board of Technologists (MBOT) (Membership number: PT21070065 & GT21020319)
  7. Member of ASM International the Materials Information Society (Membership number: C-06240410)


Research Grant

  1. Fundamental Research Grant Scheme (FRGS) 
    Project Title: Conceptualization of the Nanotechnology Adaptation in the Malaysian Food Supply Chain Framework
    Duration: 2 years (Sept 2021 - Sept 2023)
    Role: co-Project Leader
    Amount: RM 60000.00
    Status: On-going 
  2. Fundamental Research Grant Scheme (FRGS) 
    Project Title: Conceptualising the sensing behaviour of molecularly imprinted polymer as a biomimetic receptor towards creatinine
    Duration: 2 years (Sept 2021 - Sept 2023)
    Role: Project Member
    Amount: RM 117800.00
    Status: On-going 
  3. Fundamental Research Grant Scheme (FRGS) 
    Project Title: Evaluation of Hetero-Interfacial Interactions in Graphene/Conductive Polymer System Towards Sensitivity of a Flexible Sensor
    Duration:2 years (Nov 2020 - Oct 2022)
    Role: Project Leader
    Amount: RM 108812.00
    Status: On-going 
  4. Research Excellence Innovative Grant (REIG)
    Project Title: Surface Modification of Fabric Material with nano-Fe3O4: A Novel Flexible Catalyst for Organic Pollutant Removal 
    Duration:2 years (Jul 2020 – June 2022)
    Role: Project Leader
    Amount: RM 48355.00
    Status: On-going
  5. Research Excellence Innovative Grant (REIG)
    Project Title: Synthesis of Light-Sensitive Buoyant Photocatalyst Composites Through Heat Attachment of Nitrogen-Doped Zinc Oxide on Perlite Granules for Degradation of Chemical Oxygen Demand (COD) from River Water 
    Duration:2 years (Jul 2020 – Jul 2022)
    Role: Project Member
    Amount: RM 44300.00
    Status: Completed
  6. Research Excellence Innovative Grant (REIG)
    Project Title: Synthesis of Poly(vinyl) Alcohol Biocomposite Film from Cellulose Nanofiber
    Duration:2 years (Jul 2020 –Aug2022)
    Role: Project Member
    Amount: RM 50000.00
    Status: On-going
  7. Research Excellence Innovative Grant (REIG)
    Project Title: Development of Rigid Port Pavement by Using Nano Materials as Additives and Evaluation of Its Properties. 
    Duration:2 years (Jul 2020 – Aug 2022)
    Role: Project Member
    Amount: RM 50000.00
    Status: On-going
  8. Research Excellence Innovative Grant (REIG) 
    Project Title: Synthesis of Carbon Quantum Dots Photocatalytic Stability in Photo-degradation Activity using Organic Pollutants
    Duration:2 years (Jul 2020 – Oct 2022)
    Role: Project Member
    Amount: RM 49200.00 
    Status: On-going 
  9. UTAR Research Fund (UTARRF) 
    Project Title: Development of Continuous Flow Low Gradient Magnetic Separator: Modelling and Optimization
    Duration: 1 year (Dec 2019 – Dec 2020)
    Role: Project Member
    Amount: RM 38900
    Status: On-going 
  10. Pioneer Science Incentive Fund (PSIF)
    Project Title: Development of Polymer Flocculation-Assisted Magnetic Sedimentation Technique for Fast Separation of Highly Stabilized Magnetic Nanoparticles 
    Duration: 2 years (Jan 2018 - Dec 2019)
    Role: Project Leader
    Amount: RM 21881.50
    Status: Completed 
  11. Pioneer Science Incentive Fund (PSIF) 
    Project Title: Corrosion Study for Monoethanolamine Based Hybrid Solution in CO2 Absorption Unit
    Duration:  24700.00
    Role: Project Leader
    Amount: RM 24700.00
    Status: Completed 
  12. Research University-Postgraduate Research Grant Scheme (RU-PRGS)
    Project Title: Colloidal Stability of Magnetic Nanoparticles: Influence of Surface Coating to Large Scale Engineering Applications
    Duration: 2 years 
    Role: Project Leader
    Amount: RM 8500.00
    Status: Completed 


Current research projects

  1. Deposition of electrosterically stabilized nanoparticles on flexible and stretchable solid substrate and its role on physicochemical properties of the formed composites
  2. Polymer Flocculation-assisted Magnetic Sedimentation Technique for Rapid Isolation of Highly Stabilized Magnetic Nanoparticles
  3. Interfacial Interactions of Bare and Functionalized Amphoteric Nanoparticles with Environmental Media and Its Nanotoxicity Impact.


  1. MKH Ko Ko, Yeap, S. P, AH Abu Bakar. 2023. On shape-induced interfacial interactions in graphene/polyaniline composite produced through in situ polymerization approach. Journal of the Taiwan Institute of Chemical Engineers 144, 104735. 
  1.  CE Jee, MK Chow, Yeap, S. P. 2023. Fabrication of flexible carbon dioxide gas sensor with conductive polymer/reduced graphene oxide hybrids: Effects of substrate type and mass ratio. Journal of Applied Polymer Science 140 (5), e53415 . 

  1.  MM Chong, LS Tan, NW Che Jusoh, M Goto, Yeap, S. P, S Sethupathi. 2023. Nitrate adsorption towards ultrasound-assisted modified oil palm frond: Characterization and performance investigation using response surface methodology. Materials Today: Proceedings. 

  1.  WS Koh, LF Khaw, Yeap, S. P, KM Lee, JY Sum, PY Toh. 2023. Tunable Electrical Resistance of Polyaniline and Its Correlation to the Morphological Properties and Surface Functional Groups. Polymer International.

  1.  HT Goh, CY Cheok, Yeap, S. P. 2023. Green synthesis of silver nanoparticles using banana peel extract and application on banana preservation. Food Frontiers. 

  1.  MK Chow, CE Jee, Yeap, S. P. 2022. Qualitative and quantitative determination of critical coagulation concentration for pristine graphene oxide in various ionic compounds. Results in Engineering 16, 100682. 

  1. L Shi, LS Lai, WH Tay, Yeap, S. P, YF Yeong. 2022. Membrane Fabrication for Carbon Dioxide Separation: A Critical Review. ChemBioEng Reviews.  

  1.  Yeap, S. P, SD Rajendran, SN Wahab The microbial-killing Ag nanoparticles in food supply chain: How it was applied and what a consumer should know? Food Frontiers, 1-8. 

  1.  SQ Liew, YK Lee, F Wang, KM Lee, HY Leong, Yeap, S. P. 2022. Formation of Polyaniline (PANI) multilayer film using humic acid as the bridging agent: Screening on the fabrication technique. Progress in Energy and Environment 20, 16-23. 

  1. Tee, Z. Y.; Yeap, S. P.; Hasan, C. S; Kiew, P. L. 2021. Nano and non-nano fillers in enhancing mechanical properties of epoxy resins: a brief review.  Polymer-Plastics Technology and Materials, 1-17 

  1. Goh, J. M. S; Wang, F.; Yeap, S. P. 2021. Surface modification of recycled fabric materials with conductive polyaniline and its role in organic matter adsorption. International Journal of Environmental Science and Technology, 1-12. 

  1. Lee, Y. K.; Tey, W. Y.; Jawad, Z. A.; Yeap, S. P. 2021 Magnetic separation of micron-sized particles: process study and regression modelling using moving least squares and multivariable power least squares method. Chemical Engineering Communications, 1-15 

  1. Loo, G. E.; Chng, L. M.; Yeap, S. P.; Lim, JK.; Chan, D. J. C.; Leong, S. S.; Toh, P. Y. 2021 Harvesting of Microalgae from Synthetic Fertilizer Wastewater by Magnetic Particles Through Embedding–Flocculation Strategy. Arabian Journal for Science and Engineering 46 (7), 6619-6633 

  1. Wang, F.; Yeap, S. P. 2021. Using magneto-adsorbent for methylene Blue removal: A decision-making via analytical hierarchy process (AHP). Journal of Water Process Engineering 40, 101948 

  1. Juber, F. A. H.; Jawad, Z. A.; Chin, B. L. F.; Yeap, S. P.; Chew, T. L. 2021. The prospect of synthesis of PES/PEG blend membranes using blend NMP/DMF for CO2/N2 separation. Journal of Polymer Research 28 (5), 1-26 

  1. Tham, F. K.; Ng, W. M.; Leong, S. S.; Yeap, S. P.; Low, S. C.; Lee, H. L.; Lim. J. K. 2021. Magnetophoresis of Magnetic Pickering Emulsions Under Low Field Gradient: Macroscopic and Microscopic Motion. Langmuir. 

  1. Yeap, S. P.; Sum, J. Y.; Toh, P. Y. 2020. Separation of Nano‐scaled Particles by Flocculation (Review). Chemical Engineering & Technology, 

  1. Salini, D. R.; Wahab, S. N.; Yeap, S. P. 2020. Design of a smart safety vest incorporated with metal detector kits for enhanced personal protection. Safety and health at work, 11, pp. 537. 

  1. Geow, C. H.; Tan, M. C.; Yeap, S. P.; Chin. N. Y. 2020. Kinetic Mechanism of Hazelnut Oil Extraction with Ultrasound-Assisted Osmotic Dehydration Pretreatment. Food and Bioprocess Technology, 14, pp. 187. 

  1. Chong, W. H.; Ng, Q. H.; Lim, J. K.; Yeap, S. P.; Low, S. C. 2020. Study on the enhancement of colloidal stable poly(sodium 4‐styrene sulfonate) coated magnetite nanoparticles and regeneration capability for rapid magnetophoretic removal of organic dye. Journal of Chemical Technology & Biotechnology.  

  1. Wai, S. Y; Yeap, S. P.; Jawad, Z. A. 2020. Synthesis of magnetite macro-bead for water remediation: process optimization via manipulation of bead size and surface morphology. IOP Conference Series: Earth and Environmental Science, 463, pp. 1. 

  1. Yeap, S. P.; Logeswaran, A; Low, Y. C.; Kow, K. W. 2020. Synthesis of Polyaniline for Water Remediation and Evaluating Its Feasibility to be Reused as Electrical Conductor. International Journal of Nanoelectronics and Materials, 13, pp. 35. 

  1. Ooi, Z. L.; Tan, P. Y.; Tan, L. S.; Yeap, S. P. 2020. Amine-based Solvent for CO2 Absorption and Its Impact on Carbon Steel Corrosion: A Perspective Review. Chinese Journal of Chemical Engineering, 28, pp. 1357. 

  1. Koh, W. S.; Lee, K. M.; Toh, P. Y.; Yeap, S. P. (2019) Nano-Graphene and Its Derivatives For Fabrication Of Flexible Electronic Devices: A Quick Review. Advanced Materials Letters 10, pp. 676. 

  1. Renugopal, L.; Kow, K-W.; Kiew, P. L.; Yeap, S. P., Chua, H. S.; Chan, C. H.; Yusoff, R. (2019). Selective adsorption of copper and cadmium ions using nano-particles aligned in silica gel matrix. AIP Conference Proceedings 2124 (1), 020001. 

  1. Lo, F. F.; Kow, K-W.; Chua, H. S.; Yeap, S. P.; Kiew, P. L.; Chan, C. H.; Yusoff, R. (2019). Magnetically aligned nanocomposite as a novel adsorbent for copper ions removal. AIP Conference Proceedings 2124 (1), 020002. 

  1. Juliana, N.; Yeap, S. P. 2019. Effects of Concentration and Molecular Weight of Polycation on the Precipitation of SiO2 Particles and Humic Acid Progress in Energy and Environment 8, pp. 16. 

  1. Yeap, S. P.; Chon, K. C. 2019. Interfacial interactions of bare and functionalized nanoparticles with quartz sand: Role of humic acid and coexisting divalent cations. Environmental Nanotechnology, Monitoring & Management, 11, pp. 100213. 

  1. Yeap, S. P.; Tia, S. Y. 2019. Induced Rapid Magnetic Sedimentation of Stabilized-Fe3O4 nanoparticles by Bridging and Depletion Flocculation. Chemical Engineering Research and Design, 142, pp. 53. 

  1. BOOK CHAPTER: Leong, S. S., Lim, J. K. Yeap, S. P. 2018. Chapter 3: Dynamic Light Scattering: Effective Sizing Technique for Characterization of Magnetic Nanoparticles. Handbook of Materials Characterization, 19, pp. 368. ISBN 9783319929545 

  1. BOOK CHAPTER: Leong, S. S., Yeap, S. P., Lim, J. K. Low, S. C., Mohamud, R. 2018. Chapter 10: Current Progress in Magnetic Separation-Aided Biomedical Diagnosis Technology. Clinical Applications of Magnetic Nanoparticles, ISBN 9781138051553 

  1. Chin, A. H.; Yeap, S. P. 2018. Assessing the Role of Common Salt Valency and Concentration on Humic Acid and Alginate Removal from Synthetic Pond Water. Progress in Energy and Environment, 6, pp. 33. 

  1. Yeap, S. P.; Lim, J. K., Ngang, H. P., Ahmad, A. L.; Ooi, B. S. 2018. Role of Particle–Particle Interaction Towards Effective Interpretation of Z-Average and Particle Size Distributions from Dynamic Light Scattering (DLS) Analysis. Journal of Nanoscience and Nanotechnology, 18, pp. 6957.  

  1. Yeap, S. P.; Ahmad, A. L.; Ooi, B. S.; Lim, J. K. 2018. Feasibility of Electrostatic-Mediated Post-Functionalization to Induce Long Term Colloidal Stability and Stability After Freeze Drying of Amphoteric Nanoparticles. Colloid and Interface Science Communications, 23, pp.14. 

  1. Yeap, S. P.; Ahmad, A. L.; Ooi, B. S.; Lim, J. K. 2017. Agglomeration, colloidal stability, and magnetic separation of magnetic nanoparticles: collective influences on environmental engineering applications. Journal of Nanoparticle Research, 19, pp. 368. 

  1. Yeap, S. P; Ahmad, A. L.; Ooi, B. S.; Lim, J. K. 2015. Manipulating Cluster Size of Polyanion-Stabilized Fe3O4 Magnetic Nanoparticle Clusters via Electrostatic-Mediated Assembly for Tunable Magnetophoresis Behavior. Journal of Nanoparticle Research, 17, pp.1. 

  1. Yeap, S. P.; Leong, S. S.; Ahmad, A. L.; Ooi, B. S.; Lim, J. K. 2014. On Size Fractionation of Iron Oxide Nanoclusters by Low Magnetic Field Gradient. The journal of Physical Chemistry C, 118(41), pp.24042. 

  1. Lim, J. K.; Yeap, S. P.; Leow. C. H.; Toh, P. Y.; Low, S. C. 2014. Magnetophoresis of Iron Oxide Nanoparticles at Low Field Gradient: The role of shape anisotropy. Journal of Colloid and Interface Science, 421, pp. 170. 

  1. Lim, J. K.; Yeap, S. P.; Low, S. C. 2014. Challenges Associated to Magnetic Separation of Nanomaterials at Low Field Gradient. Separation and Purification Technology, 123, pp. 171. 

  1. Lim, J. K.; Yeap, S. P.; Che. H. X.; Low, S. C. 2013. Characterization of Magnetic Nanoparticle by Dynamic Light Scattering. Nanoscale Research Letters, 8, pp. 381 

  1. Yeap, S. P.; Toh, P. Y.; Ahmad, A. L.; Low, S. C.; Majetich, S. A.; Lim, J. K. 2012. Colloidal Stability and Magnetophoresis of Gold-coated Nanorods in Biological Media. The Journal of Physical Chemistry C, 116, pp. 22561. 

  1. Yeap, S. P.; Ahmad, A. L.; Ooi, B. S.; Lim, J. K. 2012. Electrosteric Stabilization and its Role on Cooperative Magnetophoresis of Colloidal Magnetic Nanoparticles. Langmuir, 28, pp. 14878.


  1. Phan, Y. S.; Koh, W. S.; Yeap, S. P. “Evaluating the Colloidal Stability of Graphene Oxide Nanosheet in Heat Transfer Fluid.” International Conference on Advanced Material Engineering & Technology 2020 (26th - 27th November), Virtual. 

  1. Wai, S. Y.; Yeap, S. P. “Synthesis of magnetite macro-bead for water remediation: process optimization via manipulation of bead size and surface morphology.” International Conference on Sustainable Energy and Green Technology 2019 (11th – 14th Dec) Bangkok, Thailand. 

  1. Yeap, S. P.; Sinna Thaanby, L.; Low, Y. C.; Know, K-W.  “Synthesis of Polyaniline for Water Remediation and Evaluating Its Feasibility to be Reused as Electrical Conductor.” International Symposium on Science, Technology and Engineering 2019(18th November), Melaka, Malaysia. 

  1. Yeap, S. P.; Ahmad, A. L.; Ooi, B. S.; Lim, J. K. “Role of Particle-Particle Interaction Towards Effective Interpretation of Log-Normal Size Distribution From Dynamic Light Scattering (DLS) Analysis.” 28th Regional Symposium Malaysia Analytical Sciences 2015 (17th - 20th August), Ipoh, Perak, Malaysia. 

  1. Yeap, S. P.; Ahmad, A. L.; Ooi, B. S.; Lim, J. K. “Colloidal Stability and Cooperative Magnetophoresis of Iron Oxide Nanoparticles.” 7th International Conference on Materials for Advanced Technologies 2013 (30th June – 05th July), Suntec, Singapore. 

  1. Yeap, S. P.; Ku, K. T.; Ahmad, A. L.; Ooi, B. S.; Lim, J. K. “Post-Grafting Magnetic Nanoparticles for Enhanced Stability and Specific Functionalities: Impact of Physical and Chemical Determinants.” 2nd Postgraduate Colloquium for Environment Research 2013 (28th – 29th June), Pahang, Malaysia.  

  1. Yeap, S. P.; Ku, K. T.; Ahmad, A. L.; Ooi, B. S.; Lim, J. K. “Characterization of Fe3O4/PSS Core-Shell Magnetic Nanofluid Tailor Towards Environment Remediation” International Conference on Environment 2012 (11th – 13th December), Penang, Malaysia.   

Editorial Board

  1. Associate Editor, Progress in Energy & Environment, Academia Baru (2018 - current) 

  1. Editorial Board member for the Open Chemical Engineering journal, Bentham Open (2019 – current) 

  1. Editorial Board member for International Journal of Nano Scientific Networks and Nanotechnology (2018 – current) 

Award and Recognitinos

  1. Gold Medal, Final Year Project & Postgraduate (FYPP): Research & Innovation Poster Competition (23th July 2022)

  2. Third Place (Early Career Researchers), National Pitching Research Competition, UiTM

  3. Gold Medal, International Invention & Innovation Competition InIIC Series 2/2020 (30th Oct 2020) 

  1. Gold Medal, International Putra InnoCreative Poster Competition, Carnival in Teaching and Learning, UPM (22-30th Oct 2020) 

  1. Platinum, International Summit on Innovation Design Exposition, (13-14th Apr 2020) 

  1. Gold Medal, 5th Undergraduate Research Competition & Exhibition (URCE), UNIKL MICET (1st Oct 2019) 

  1. Bronze Medal, Penang Innovation & Invention Competition, 2019 

  1. Young Researcher Award (2017 - 2018) by FETBE, UCSI University. 

  1. Best New Lecturer (2016) by UCSI University. 

  1. Sanggar Sanjung Award (2012 and 2014) for Excellent Achievement in Category of Journal Publication, USM. 

  1. Gold Medal (2011) in World Invention Awards of British Invention Show, British Inventors Society, Old Spitalfields Market E1, London, England. Project: Functionalized Carbon Nanotubes as scaffold materials 

  1. Gold Medal (June, 2011) in the National Research & Innovation Competition (NRIC), USM, Penang. Project: Functionalized Carbon Nanotubes as scaffold materials 

  1. Bronze Medal (2010) Poster Presentation in the 5th Malaysia Chem-E-Car Competition 2010, the Institution of Engineers Malaysia (IEM). 

  1. First place (2010) in the category of Car Running & Poster Presentation in School level Chem-E-Car Competition, USM, Penang. 

  1. Gold Medal (2011) Best Undergraduate Student in Chemical Engineering, USM, Penang.