DocumentCode :
2537041
Title :
Disposable microfluidic vacuum modules using inductively-triggered transformative polymers for point-of-care diagnostics
Author :
Hong, Chien-Chong ; Tsai, Cheng-Han ; Chen, Szu-Ying ; Chen, Chie-Pein
Author_Institution :
Dept. of Power Mech. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
fYear :
2011
fDate :
5-9 June 2011
Firstpage :
1472
Lastpage :
1475
Abstract :
This paper presents a novel disposable microfluidic vacuum module using inductively-triggered transformative polymers for point-of-care diagnostics. Micropump and microvalve are the most popular devices as pressure sources for microfluidic systems. However, micropumps/valves make the microfluidic systems complicated and sometimes unsuitable for disposable biochips due to complexity in structure/assembly. In this work, shape memory polymer materials are incorporated with Nickel nanoparticles. The developed devices can be triggered by remotely inductive heating and work as disposable vacuum modules. The new design could decrease the complexity of systematic design and procedure without any circuit, electricity and actuators on a chip, it stylizes for memorizing the switch of two different geometric patterns structure in advance while synthesizing the material so as to complete the transmission. The novel disposable vacuum module presented in this work showed excellent performance in producing vacuum pressure to suck liquids through microchannels by applying magnetic field with a frequency of 16.7 kHz. Compact and simple structure makes it easy to integrate on microfluidic systems for applications in point-of-care microfluidic biochips.
Keywords :
biological techniques; induction heating; lab-on-a-chip; magnetic fields; microchannel flow; micropumps; microvalves; nickel; patient care; patient diagnosis; polymers; shape memory effects; Ni; disposable biochips; disposable microfluidic vacuum module; geometric patterns structure; inductively triggered transformative polymer; magnetic field; microchannels; micropump; microvalve; point-of-care diagnostics; point-of-care microfluidic biochips; pressure sources; remotely inductive heating; shape memory polymer; Cameras; Cavity resonators; Frequency synthesizers; Magnetic liquids; Polymers; Shape; Vacuum systems; induction heating; point-of-care microfluidics; shape memory polymer; vacuum modules;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International
Conference_Location :
Beijing
ISSN :
Pending
Print_ISBN :
978-1-4577-0157-3
Type :
conf
DOI :
10.1109/TRANSDUCERS.2011.5969629
Filename :
5969629
Link To Document :
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