Abstract
The prototype of the pneumatic micro dispenser chip for portable micro analysis devices was developed successfully. This micro dispenser succeeded to divide liquid into 1μL without any dead volume by decompressing and the compressing air in only one micro pump. The dispensing operation is achieved by the original micro liquid detecting method and four hat-shaped check valves. The detecting method utilized the refraction of the infrared rays LED. Not only passage of the fluid into the channel but also its existence can be detected as TTL level signal. The hat-shaped silicone rubber valve which functions itself as a unidirectional passive valve was proposed. The check valve with low opening pressure (3kPa) and high inverse pressure (over 300kPa) was developed successfully. This micro dispenser chip is useful for portable micro analysis devices.
| Original language | English |
|---|---|
| Pages (from-to) | 195-202 |
| Number of pages | 8 |
| Journal | IEEJ Transactions on Sensors and Micromachines |
| Volume | 132 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2012 |
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Keywords
- μ-TAS
- Biochemical IC
- Check valve
- Micro dispenser chip
- Micro liquid detection
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Mechanical Engineering
Cite this
Pneumatic micro dispenser chip for portable micro analysis devices (1st report, verification of dispensing principle using air pressure drive). / Hasegawa, Tadahiro; Tsuji, Toshiyuki; Ikuta, Koji.
In: IEEJ Transactions on Sensors and Micromachines, Vol. 132, No. 7, 2012, p. 195-202.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Pneumatic micro dispenser chip for portable micro analysis devices (1st report, verification of dispensing principle using air pressure drive)
AU - Hasegawa, Tadahiro
AU - Tsuji, Toshiyuki
AU - Ikuta, Koji
PY - 2012
Y1 - 2012
N2 - The prototype of the pneumatic micro dispenser chip for portable micro analysis devices was developed successfully. This micro dispenser succeeded to divide liquid into 1μL without any dead volume by decompressing and the compressing air in only one micro pump. The dispensing operation is achieved by the original micro liquid detecting method and four hat-shaped check valves. The detecting method utilized the refraction of the infrared rays LED. Not only passage of the fluid into the channel but also its existence can be detected as TTL level signal. The hat-shaped silicone rubber valve which functions itself as a unidirectional passive valve was proposed. The check valve with low opening pressure (3kPa) and high inverse pressure (over 300kPa) was developed successfully. This micro dispenser chip is useful for portable micro analysis devices.
AB - The prototype of the pneumatic micro dispenser chip for portable micro analysis devices was developed successfully. This micro dispenser succeeded to divide liquid into 1μL without any dead volume by decompressing and the compressing air in only one micro pump. The dispensing operation is achieved by the original micro liquid detecting method and four hat-shaped check valves. The detecting method utilized the refraction of the infrared rays LED. Not only passage of the fluid into the channel but also its existence can be detected as TTL level signal. The hat-shaped silicone rubber valve which functions itself as a unidirectional passive valve was proposed. The check valve with low opening pressure (3kPa) and high inverse pressure (over 300kPa) was developed successfully. This micro dispenser chip is useful for portable micro analysis devices.
KW - μ-TAS
KW - Biochemical IC
KW - Check valve
KW - Micro dispenser chip
KW - Micro liquid detection
UR - http://www.scopus.com/inward/record.url?scp=84866922334&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84866922334&partnerID=8YFLogxK
U2 - 10.1541/ieejsms.132.195
DO - 10.1541/ieejsms.132.195
M3 - Article
VL - 132
SP - 195
EP - 202
JO - IEEJ Transactions on Sensors and Micromachines
JF - IEEJ Transactions on Sensors and Micromachines
SN - 1341-8939
IS - 7
ER -