Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 May 6;7(5):83. doi: 10.3390/mi7050083

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2016 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Demonstration experiment of channel selection using valves. (a) Photo of the microfluidic device prototype; (b) The location of the observed area and valve units used; (c) Results of the channel selection demonstration. B ≤ C before: initial state of valve A, off; B, off; C, on; positions of bubbles 1, 2, and 3 in the flow. B ≤ C after: B was turned on, and A and C were turned off; the flow containing bubbles flowed to B. A ≥ C before: initial state of valve A, on; B: off, C, off; the positions of bubbles 1, 2, and 3 in the flow. A ≥ C after: C was turned on, and A and B were turned off; the flow containing bubbles flowed to C. A ≤ B before: initial state of valve A, off; B, on; C, off; the positions of bubbles 1, 2, and 3 in the flow. A ≤ B after: A was turned on, and B and C were turned off; the flow containing bubbles flowed to A. The white scale bar is 1.5 mm.