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yeminrunqi

新虫 (初入文坛)

应助: 0 (幼儿园)
金币: 28.5
帖子: 7
在线: 3.4小时
虫号: 1663043
注册: 2012-03-04
专业: 机械摩擦学与表面技术

[交流] 英国全额奖学金，每年14057英镑，不收学费

有个博士生全额奖学金名额：紧急！ University of Northumbria in Newcastle, UK.
奖学金：每年£14,057 （不收学费）。
学生要雅思成绩（6.5）。最好硕士学位或即将毕业，有文章最好。
截止日期：Application Deadline:Tuesday, March 31, 2015
联系人：Enquiries regarding this studentship should be made to: Dr. Richard Fu, e-mail: richard.fu@uws.ac.uk; richard.fu@northumbria.ac.uk
博士课题内容：
博士课题信息：
http://www.findaphd.com/search/ProjectDetails.aspx?PJID=61971&LID=2304
Flexible surface acoustic wave diagnostic lab-on-chip (EE/DRFPHY7P/61971)
Surface acoustic waves (SAWs) provide a remarkable range of lab-on-chip functions, including microfluidics (streaming, mixing, transportation, jetting, and nebulisation) and biosensing, with high sensitivity and wireless function. The aim of this project is to explore a new flexible thin film based SAW technology for next generation wearable microfluidics based diagnostic devices, for applications in mobile healthcare and point of care systems. These flexible devices can be used to provide valuable information about a person’s physiology/illness, managing chronic illness, preventative healthcare and rehabilitation. Piezoelectric thin film based SAW technology has the technique/process capabilities for integrating most of microfluidic/biosensing functions onto the flexible substrates.

In this project, piezoelectric films will be deposited onto polymer substrates to form the flexible SAW platform, and film microstructure and properties will be characterised. SAW devices will be prepared using conventional lithography process, and their resonant frequencies at different wavelengths and film thicknesses will be characterised. Theoretical analysis and simulation will be applied to investigate the fundamental acoustic wave modes generated.

Microfluidic functions based on the flexible SAW device, such as internal streaming, mixing, concentration and liquid transportation will be investigated using signal/function generator and RF amplifier. Microfluidic phenomena will be recorded using a high speed video camera and infra-red camera. Flexibility of the microfluidic performance will be tested by bending the devices into different strains. The influences of the environment temperature and humidity on the sensing performance will be evaluated. The flexible SAW devices will be demonstrated for liquid-phase biosensing using a standard biotin-streptavidin system, as well as cancer markers. Based on the results from microfluidic and sensing, an integrated flexible lab-on-chip will be designed and fabricated for medical diagnosis.

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