Yun Haeng Joe1, Wei Ju2, Jae Hong Park3, Young Hun Yoon4, Jungho Hwang 1

  • 1 School of Mechanical Engineering, Yonsei University, Seoul 120-749, Korea
  • 2 Shanghai Office, Doosan Heavy Industries & Construction Co., Shanghai City 200-051, China
  • 3 Department of Occupational and Environmental Health, The University of Iowa, Iowa City, USA
  • 4 Green Technology Development Office, Korea Environmental Industry & Technology Institute, Seoul 122-706, Korea

Received: July 20, 2013
Revised: January 8, 2013
Accepted: January 8, 2013
Download Citation: ||  

  • Download: PDF

Cite this article:
Joe, Y.H., Ju, W., Park, J.H., Yoon, Y.H. and Hwang, J. (2013). Correlation between the Antibacterial Ability of Silver Nanoparticle Coated Air Filters and the Dust Loading. Aerosol Air Qual. Res. 13: 1009-1018.



This study investigated the correlation between the antibacterial ability of silver nanoparticle air filters with the related dust loading. In addition, a decay equation with which the life cycle of the antibacterial air filters could be predicted was developed. Samples of a HEPA (High Efficiency Particulate Air) filter were coated with an antibacterial agent, silver nanoparticles, which were synthesized via an atmospheric spark discharge method and deposited onto the filters using forced convection flow. A specific amount of dust particles was then blown onto each filter sample. Two kinds of bacteria, Escherichia coli (E. coli), representing Gram-negative bacteria, and Staphylococcus epidermidis (S. epidermidis), representing Gram-positive bacteria, were used in order to examine the antibacterial abilities of the filter samples. The results of the disc diffusion method showed that the dust loading adversely affected the antibacterial efficacy. However, the silver nanoparticle mass density on a filter with a certain amount of dust does increase the antibacterial ability to a certain extent. Finally, decay equations for the decline rates of the antibacterial ability against E. coli and S. epidermidis were obtained with a dimensionless pressure drop across the antibacterial filter samples.

Keywords: Silver nanoparticles; Disc diffusion method; Dust loading; Antibacterial; Spark discharge; Decay correlation

Share this article with your colleagues 


Subscribe to our Newsletter 

Aerosol and Air Quality Research has published over 2,000 peer-reviewed articles. Enter your email address to receive latest updates and research articles to your inbox every second week.

77st percentile
Powered by
   SCImago Journal & Country Rank

2022 Impact Factor: 4.0
5-Year Impact Factor: 3.4

Call for Papers for the special issue on: "Carbonaceous Aerosols in the Atmosphere"

Aerosol and Air Quality Research partners with Publons

CLOCKSS system has permission to ingest, preserve, and serve this Archival Unit
CLOCKSS system has permission to ingest, preserve, and serve this Archival Unit

Aerosol and Air Quality Research (AAQR) is an independently-run non-profit journal that promotes submissions of high-quality research and strives to be one of the leading aerosol and air quality open-access journals in the world. We use cookies on this website to personalize content to improve your user experience and analyze our traffic. By using this site you agree to its use of cookies.