Cart (Loading....) | Create Account
Close category search window
 

In-line pressure monitoring for microfluidic devices using a deformable diffraction grating

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Hosokawa, K. ; Mech. Eng. Lab., AIST, Tsukuba, Japan ; Maeda, R.

In this paper, a novel optical method for monitoring of local pressure in a microfluidic device using a deformable diffraction grating is presented. A test device was fabricated with transparent silicone elastomer-polydimethylsiloxane (PDMS)-using the replica molding technique. A diffraction grating of 2 mm/spl times/2 mm area and a microchannel of 200 /spl mu/m width and 20 /spl mu/m depth are defined by the conformal contact between a PDMS chip and a glass plate. The grating consists of 5 /spl mu/m wide, 2 /spl mu/m deep rectangular grooves arrayed with period of 10 /spl mu/m, and it is connected to access ports with the microchannel. Optical response of the device to internal pressure ranging from 0 to -80 kPa is presented and compared with theoretical prediction. It is also demonstrated that the test device can be used for measurement of air flow rate ranging form 0 to 0.3 cc/min. The major advantages of this method are simple fabrication and flexible design. This method is not only desirable for flow characterization of microfluidic devices, but also opens up the possibility of new types of fiber-optic pressure sensors and pressure-driven optical modulators.

Published in:

Micro Electro Mechanical Systems, 2001. MEMS 2001. The 14th IEEE International Conference on

Date of Conference:

25-25 Jan. 2001

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.