Jeong-Yeol Yoon received his Ph.D. in biomedical engineering from the University of California, Los Angeles (UCLA), USA in 2004. He joined the faculty at the University of Arizona, USA in the same year. Dr Yoon has worked on smartphone-based biosensors. He was the President of the Institute of Biological Engineering in 2015 and is currently the Editor-in-Chief of the Journal of Biological Engineering (Springer Nature), Associate Editor of Biosensors and Bioelectronics (Elsevier), and Editorial Board Member for several other journals. Chenxu Yu received his Ph.D. in biological systems engineering from University of Wisconsin-Madison, USA in 2003. He then did post-doctoral training at Pennsylvania State University and Purdue University, USA before joined the faculty at Iowa State University, USA in 2007. He has been serving as an editorial board member of seven reputed journals. His research interests are in the areas of bionanotechnology and biosensors, food and bioprocess engineering, spectroscopic imaging and biodiagnostics, environmental monitoring and engineering.