Paul started his flow cytometry at the Peter MacCallum Cancer Institute in Melbourne in 1983. Here he did clinical and research flow cytometry before moving to Prince Henry’s Hospital to take charge of the Cell Sorter in the Department of Nephrology.
After completing his Masters of Science, Paul joined the Clinical Immunology department at Monash Medical Centre in 1992 where he oversaw the core flow cytometry facility, which was used for clinical tests and research. While here he did his PhD (Monash University) on the use of flow cytometry to quantify the level of immune function in renal transplant recipients. In February 2008 he was appointed the head of the Flow Cytometry Unit at the Institute for Molecular Medicine in Lisbon, Portugal. Since July 2009 Paul has overseen the core flow cytometry facility at the Life Sciences Institute of the National University of Singapore which services many different research groups both within and outside the University.
Paul continues to pursue research interests including using flow cytometry to develop diagnostic tests for tuberculosis and investigating new technologies for doing single cell measurements. He was involved in organising the CYTOAsia meeting in Singapore back in 2017, and continues to plan and participate in flow cytometry workshops in the South East Asia region under the Live Education Delivery Group of ISAC.