Profile

DR. LEONG CHEE YEW

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DR. LEONG CHEE YEW

SENIOR RESEARCH FELLOW

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Bio

Dr. Sandric Leong is a Senior Research Fellow known for his critical research on the dynamics, monitoring and management of Harmful Algal Blooms (HABs), and his innovative studies on plastic and microplastic pollution. He earned his PhD from Soka University, Japan, in 2004, and has since led significant projects focusing on both HABs and plastics. Dr. Leong is a steering committee member of the IOC-Westpac Harmful Algal Bloom Group. His research utilizes cutting-edge tools such as autonomous vehicles, optical sensors and advanced molecular techniques for the detection, identification and physiological study of micro-algae especially the toxic species. More recently, Dr. Leong's work has expanded to examine the interactions and persistence of toxic organisms on plastic and microplastic debris in marine environments. His team has successfully detected and identified toxic species on plastics using a novel molecular method that greatly enhances the field's ability to detect and identify toxic algal species associated with plastics. These findings significantly advance our understanding of environmental threats and improve our capacity to address them effectively.

Areas of Interest

  • Harmful algal blooms (HABs) and bloom dynamics
  • Phytoplankton & HAB species: Physiology, Nutrient Dynamics, Biotoxins
  • HAB Monitoring & Species Detection: Autonomous vehicles, Optical sensing & Molecular Detection
  • Environmental Issues: Plastics, Microplastics, Climate change, Marine Pollutions

Current Projects

  • 2024 – 2026: Bloom Triggers of Singapore Harmful Algal Species.
  • 2023 – 2025: Monitoring Water Quality and Harmful Algal Blooms in Singapore Coastal Waters with Multispectral and Hyperspectral Satellite Data.
  • 2021 – 2024: Quantification of Micro and Nano-plastics in Topical Ophthalmic Eye Drops and Exploring its Impact on the Ocular Surface.
  • 2021 – 2025: Ocean Hitchhikers: Remote Sensing Plastic Debris as Vector for Transport of Harmful Micro-organisms in Southeast Asia (International Project)

Selected Publications

  1. Curren E, Kuwahara VS, Yoshida T, Leong SCY, 2024. Sphaerothrix gracilis gen. et sp. nov. (Nodosilineales, Cyanobacteria): a novel filamentous cyanobacterium isolated from tropical coastal microplastics. Phycological Research (in press).
  2. Curren E, Kuwahara VS, Yoshida T, Leong SCY, 2024. Draft genome of novel cyanobacteria Sphaerothrix Gracilis isolated from coastal microplastics reveal insights to chemical ecology, bloom and plastic-utilization potential. Functional & Integrative Genomics 24:46.
  3. Curren E, Leong SCY, 2024. Plankton assemblages from microplastics of tropical coastal environments in Singapore reveal high diversity and evidence of toxic species. Marine Environmental Research 193: 106251.
  4. Curren E, Yu DCY, Leong SCY, 2024. From the seafloor to the surface: a global review of gastropods as bioindicators of marine microplastics. Water, Air, & Soil Pollution: 234: 45.
  5. Wu D, Lim BXH, Seah I, Xie S, Jaeger JE, Symons RK, Heffernan AL, Curren E, Leong SCY, Riau AK, Lim DKA, Stapleton F, Ali MJ, Singh S, Tong L, Mehta JS, Su X, Lim CHL, 2023. Impact of Microplastics on the Ocular Surface. International Journal of Molecular Sciences 24 (4): 3928.