研究生刘玥参加国际会议回国报告

汇报题目:参加2019 Acoustical Society of America参会报告

汇报时间：2019年5月24日（星期五） 8:30

汇报地点：西二楼东201会议室

汇报人：刘玥

会议名称：2019 Acoustical Society of America

会议时间：13-17 May 2019

会议地点：Louisville, USA

会议简介：The purpose of the Acoustical Society of America is to generate, disseminate, and promote the knowledge and practical applications of acoustics. Established in 1929, the present membership includes leaders in acoustics worldwide. Diverse fields of interest in acoustics include physics, engineering, architecture, noise, oceanography, biology, speech and hearing, psychology and music.

Spoken presentation: Development of heavy metal ions detector driven by surface acoustic waves

报告人：刘玥

参加论文信息

Title: Development of heavy metal ions detector driven by surface acoustic waves

Author: Yue Liu, Zheng Tengfei, Chaohui Wang

Abstract: We have developed a micro-detector driven by surface acoustic waves (SAWs). The SAWs enhance the oxidation current in electrochemical reactions by promoting liquid mixing, therefore the sensitivity of electrochemical detection in the microfluidic system is effectively improved. After comparing liquid diffusion efficiency between different angles of concentric circular type focused interdigital transducer (FIDTs) and different types of interdigital transducers, the FIDTs with an angle of 30° had the best liquid diffusion effect. Driven by the focused surface acoustic waves (FSAWs), the oxidation current is 1.5 times larger than that with SIDTs-mixing. In addition, the Cottrell relationship from current analysis measurements shows that the molecular diffusion rate has increased 17.5 times by using FIDTs. This study could provide the basis for the designing different chemical reaction detectors based on SAWs.