Dr. Hsu has over 25 years of experience in environmental microbiology.  His professional experiences include studies of viral pathogen transport and survival from individual household septic systems, and developing presence/absence and direct membrane filtration methods to detect low levels of coliphages in surface and ground waters.  The detection methods he developed have been modified and validated by the USEPA in national round-robin studies, resulting in USEPA methods 1601/1602. 

Alicia is a principal analyst at Scientific Methods with a degree in biotechnology. She has been a part of the Scientific Methods team for more than 12 years.  Alicia works with Dr. Hsu and Dr. Wong on research and development projects, internal analytical method development, and demonstrations of capability for Scientific Methods, Inc. Alicia is responsible for maintaining a schedule for all incoming samples, insuring that testing is performed by a qualified analyst in a timely manner, training of new laboratory personnel and performing most microscopic work.

With over 23 years of experience working in microbiological laboratories, Dr. Wong currently conducts research and development studies for new methodologies to detect and identify viruses, bacteria, and parasitic protozoa in water samples. She has extensive background in molecular biology techniques and protein over-expression studies using techniques such as receptor-ligand binding assays, immunoblot analyses, protein staining, immunoprecipitation, and the use of ion-exchange and molecular exclusion filtration systems.