Jump to main content
Jump to site search

Issue 6, 2015
Previous Article Next Article

Ultrasonic bonding method for heterogeneous microstructures using self-balancing jig

Author affiliations

Abstract

Perfect sealing of heterogeneous microstructures in plastic-based microfluidic devices is a significant and urgent challenge to be able to apply them in various microfluidic-based applications, including biosensing, biofiltering, chemical reactors and lab-on-a-chip. In this study we report a simple but practical and effective method to bond a microstructure-incorporated microfluidic device using an ultrasonic bonding method. The specially designed hemisphere-shaped jig, which is called a self-balancing jig, provides a free motion in all x, y, and z directions. These unique properties of the jig allow us to precisely adjust and bond the heterogeneous microstructures in the device. A conventional jig shows in solution leakages around the heterogeneous microstructures while the self-balancing jig did not show any leakages in devices. Furthermore, the bonding performance was also confirmed by using a black ink and fluorescent dye solution. The micro-pillar arrays in the device also demonstrated its capability for selective filtering of microbeads. We believe that this technique would be a useful tool for producing microfluidic devices with heterogeneous microstructures.

Graphical abstract: Ultrasonic bonding method for heterogeneous microstructures using self-balancing jig

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Dec 2014, accepted on 22 Jan 2015 and first published on 22 Jan 2015


Article type: Technical Innovation
DOI: 10.1039/C4LC01473A
Citation: Lab Chip, 2015,15, 1412-1416

  •   Request permissions

    Ultrasonic bonding method for heterogeneous microstructures using self-balancing jig

    K. G. Lee, S. Shin, B. I. Kim, N. H. Bae, M. Lee, S. J. Lee and T. J. Lee, Lab Chip, 2015, 15, 1412
    DOI: 10.1039/C4LC01473A

Search articles by author

Spotlight

Advertisements