時間：2026-09-24(四) 10:10 am

講題：Properties of Surfactant-free Gold Nano-particle Dispersed Aqueous Solution Prepared with Solution Plasma Processing

講者 :  Dr. Naoki Matsuda

服務單位：Department Core Manufacturing Technology Research Institute (CMT-RI),  National Institute of Advanced Industrial Science and Technology (AIST)

地點：93406

主持人：姚少凌教授

摘要：

Gold nano-particle (AuNP) dispersed aqueous solution without addition of any surfactant or supporting electrolyte would be desired, because the small amount of these molecules on AuNP significantly effect on the functionality of AuNP. We developed the novel method to directly prepare surfactant-free AuNP dispersed aqueous solution from a pair of high-purity Au electrodes in hydrogen peroxide (H2O2) aqueous solution with solution plasma (SP) processing.
Surface-enhanced Raman scattering (SERS) is famous as the super high-sensitive spectroscopy and of much importance as detection and determination of organic molecules. However, the difficulty to get well performance and cheap SERS targets has been the main reason to disturb spreading SERS spectroscopy as the practical analytical tool.
In this presentation the preparation of surfactant free AuNP dispersed aqueous solution and the application for SERS platform will be described.

經歷：

Dr. Naoki Matsuda, earned his Ph.D. in Applied Chemistry from Tohoku University, Japan in 1993.  Following graduation, he joined AIST as a researcher in 1993 and retired in 2024, where he specialized in analytical chemistry on solid/liquid interfaces.  Additionally, he invented a novel method for preparing a surfactant-free gold nano-particle dispersed aqueous solution with solution plasma processing and high-purity gold electrodes.  He published around 90 original papers during his time in AIST.

He has been a Researcher at FC-Cubic Association since 2024.  In his current role, his research focuses on PEMFC.