报告题目:Surface Free Energy of Liquid, Solid, and Particle

主讲人：Yi Zuo, Professor

报告地点：轮机楼317会议室

报告时间：2019年12月19日9：00-11：30

报告摘要：

Surface free energy (SFE) is the excess energy per unit surface area. It is a quantitative thermodynamic measure of intermolecular and surface forces, thus also determining the hydrophobicity and wettability of a material. The SFE of a liquid surface is equivalent to its surface tension, which can be determined with established methods. However, the SFE of a solid surface cannot be determined directly. The SFE of micro- and nanoparticles plays a crucial role in determining dispersion and aggregation of the particles. To date, there are no easy-to-use methods for determining the SFE of particles. Here, I introduce novel methods developed in our laboratory for determining the SFE of liquids, solids, and particles. Our method has the potential to be developed into standard, low-cost, and easy-to-use techniques for quantitatively characterizing the SFE and hydrophobicity of all surfaces.

报告人简介：

Yi Zuo, Professor, Laboratory of Biocolloids and Biointerfaces; Department of Mechanical Engineering, University of Hawaii at Manoa; Department of Pediatrics, John A. Burns School of Medicine, University of Hawaii.

Prof. Zuo earned his PhD in Mechanical Engineering from the University of Toronto in 2006. He is currently a professor in the Department of Mechanical Engineering at the University of Hawaii at Manoa, and adjunct professor in the Department of Pediatrics in John A. Burns School of Medicine. Prof. Zuo's research interests are focused on general areas of colloid and surface science and their applications to areas of biomedical and biotechnological interest, such as applied surface thermodynamics, surface engineering, thin-film materials, pulmonary surfactants, particles, nano-bio interactions, and instrumentation. Prof. Zuo received the NSF CAREER Award in 2013 and the Faulty Research Award in 2016.