Related Experiment Video
Updated: Feb 2, 2026

A Microfluidic Chip for ICPMS Sample Introduction
Published on: March 5, 2015
A One-Square-Millimeter Compact Hollow Structure for Microfluidic Pumping on an All-Glass Chip
1Department of Biology, School of Life Sciences, Xiamen University, Xiamen 361005, China. xypeng@xmu.edu.cn.
Abstract:
A micro surface tension pump is a new type of low-cost, built-in, all-glass, microfluidic pump on a glass microchip fabricated by one-step glass etching. However, geometric minimization and optimization for practical use are challenging. Here, we report a one-square-millimeter, built-in, all-glass pump controlled by two-way digital gas pressure. The pump consists simply of two joint chambers and a piston between two gas control channels. It does not require pre-perfusion for initialization, and can immediately begin to run when a liquid enters its inlet channel. It is also more reliable than conventional micro pumps for practical use due to its ability to restart after the formation of a blocking bubble, which can serve as a valuable troubleshooting procedure. Its volumetric pump output was 0.5⁻0.7 nL·s-1 under a pump head pressure of 300 Pa.
More Related Videos
Related Concept Videos
Compact Bone
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
Punnett Squares
The Looking Glass Self
Compacting Factor test
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
Root Mean Square
For example, consider the velocity of gas molecules in a container. The gas molecules are moving in different directions, which might impart positive and negative...
Thin-Walled Hollow Shafts

