Bryan M. Ham, PhD, has worked in analytical chemistry laboratories for more than 25 years. He is currently working for the Department of Homeland Security at the U.S. Customs and Border Protection Office of Trade Headquarters in Washington D.C.

Aihui MaHam, PhD, is an expert in nano-materials including the synthesis and characterization of chemical and biological nano-sensors. She is currently working for the Department of Homeland Security at the U.S. Customs and Border Protection Office of Trade Headquarters in Washington D.C.