**Ting-Yu Liu**

Ting-Yu Liu achieved his PhD degree at the Department of Materials Science and Engineering, National Chiao Tung University, Taiwan, in 2008. He was a Visiting Researcher in the Department of Materials Science and Engineering, University of Pennsylvania, USA, for 1 year. Subsequently, he became a Post-Doc Fellow at the Institute of Atomic and Molecular Sciences, Academia Sinica, Taiwan, from 2009 to 2011, and then a Project Assistant Professor in the Institute of Polymer Science and Engineering, National Taiwan University, from 2011 to 2013. He is currently a Distinguished Professor at the Department of Materials Engineering, Ming Chi University of Technology, Taiwan. His research covers nanomaterials, biomaterials, polymer composites, and opto-electric (surface-enhanced Raman spectroscopy detection) and electrochemical sensing. He has published more than 100 SCI-indexed journal articles and has gained an h-index of 31, according to the citation report from Google Scholar.

#### **Yu-Wei Cheng**

Yu-Wei Cheng achieved his PhD degree at the Institute of Polymer Science and Engineering, National Taiwan University. He is currently an Assistant Professor at the Department of Chemical Engineering, Ming Chi University of Technology, Taiwan. His research interests include the synthesis of functionalized polymers and the fabrication of optimized Raman-enhanced nanoparticle arrays for small molecule detection. His recent research has focused on manipulated metal nanoparticle arrays grown on 2D and 3D substrates for multifunctional smart sensors and surface-enhanced Raman scattering detection, published in highly ranking journals of chemistry and physical fields. He has published 26 SCI-indexed journal articles and has gained an h-index of 12, according to the citation report from Google Scholar.
