Issue 19, 2012

Atmospheric-pressure microplasma in dielectrophoresis-driven bubbles for optical emission spectroscopy

Abstract

The manipulation of bubbles and the ignition of microplasma within a 200 nL bubble at atmospheric pressure and in an inert silicone oil environment were achieved. Driven by dielectrophoresis (DEP), bubble generation, transportation, mixing, splitting, and expelling were demonstrated. This process facilitated the preparation of various bubbles with tuneable gas compositions. Different gas bubbles, including air, argon (Ar), helium (He), and Ar/He mixtures, were manipulated and ignited to the plasma state by dielectric barrier discharge (DBD) within a 50 μm-high gap between parallel plates. Moving and splitting the atmospheric-pressure microplasma in different gas bubbles were achieved by DEP. The excited light of the microplasma was recorded by an optical spectrometer for the optical emission spectroscopy (OES) analyses. The characteristic peaks of air, Ar, and He were observed in the DEP-driven microplasma. With the capability to manipulate bubbles and microplasma, this platform could be used for gas analyses in the future.

Graphical abstract: Atmospheric-pressure microplasma in dielectrophoresis-driven bubbles for optical emission spectroscopy

Supplementary files

Article information

Article type
Paper
Submitted
02 May 2012
Accepted
23 Jul 2012
First published
25 Jul 2012

Lab Chip, 2012,12, 3694-3699

Atmospheric-pressure microplasma in dielectrophoresis-driven bubbles for optical emission spectroscopy

S. Fan, Y. Shen, L. Tsai, C. Hsu, F. Ko and Y. Cheng, Lab Chip, 2012, 12, 3694 DOI: 10.1039/C2LC40499K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements