LOW COST DEVICE FOR PRECISE MICROLITER RANGE LIQUID DISPENSIN
2004 (English)In: 17th IEEE International Conference on Micro Electro Mechanical Systems (IEEE MEMS 2004), New York: IEEE conference proceedings, 2004, 326-329 p.Conference paper (Refereed)
In this work we present the fabrication and testing of a thermally actuated one-shot liquid dispenser, which actuation is based on highly expandable microspheres. We show an uncomplicated, fully functional, low cost device for use in medical disposables, e.g. transdermal systems based on microneedles. All device components are made out of low cost materials and fabrication processes have the potential for high volume batch manufacturing. The device utilizes the properties of the expandable microspheres to form a heat insulating layer to the delivered liquid. Moreover, it does not require any feed-back or complicated flow metering. The device was successfully tested showing a mean dispensed liquid of 101 mul with a relative standard deviation of 3.2% and with a maximum temperature of 59 degreesC in the liquid during actuation. No back-flow was observed for the device.
Place, publisher, year, edition, pages
New York: IEEE conference proceedings, 2004. 326-329 p.
, Proceedings: IEEE Micro Electro Mechanical Systems Workshop, ISSN 1084-6999
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-24794DOI: 10.1109/MEMS.2004.1290588ISI: 000189435200081ScopusID: 2-s2.0-3042822251ISBN: 0-7803-8265-XOAI: oai:DiVA.org:kth-24794DiVA: diva2:354923
17th IEEE International Conference on Micro Electro Mechanical Systems (IEEE MEMS 2004), Maastricht, The Netherlands, 25-29 Jan, 2004
QC 20101005 QC 201111232010-10-052010-09-272015-06-03Bibliographically approved