An ejection microarray for in-situ oligonucleotide synthesis on DNA chips

被引:0
|
作者
Gué, AM [1 ]
Phou, T [1 ]
Jugieu, D [1 ]
Conédéra, W [1 ]
机构
[1] CNRS, Lab Anal & Architecture Syst, F-31077 Toulouse, France
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暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A new microfluidic actuator for in situ oligonucleotides synthesis on DNA chips has been developed. It consists in a microarray of individually addressable ejectors able to deliver pl droplets. The working principle is based on thermal ink-jet printing. The design of the micro injector has been deduced from FEM simulation, in order to achieve 4000 ejectors/cm(2). The technological fabrication process includes the realisation of a thin dielectric and stress free membrane, of polysilicon heater resistors, and of SU8 photopolymerised nozzles. Ejections have been observed for 50 mus pulses and 1.25W power consumption without satellite droplets.
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页码:218 / 221
页数:4
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