text: Hua-Zhong "Hogan" Yu (于化忠) is presently a professor of materials and analytical chemistry  at Simon Fraser University in metro Vancouver, Canada, where he leads a research laboratory working on Surfaces and Materials for Sensing. He is also an associate editor for Analyst, the journal for Analytical and Bioanalytical Sciences from the Royal Society of Chemistry in UK, and an adjunct professor in the College of Biomedical Engineering, Taiyuan University of Technology in Shanxi, China.