OPEN ACCESS

Articles online

A Quantitative Determination of the Antibacterial Efficiency of Fibrous Air Filters Based on the Disc Diffusion Method

Category: Articles

Volume: 14 | Issue: 3 | Pages: 928-933
DOI: 10.4209/aaqr.2013.04.0116
PDF | RIS | BibTeX

Yun Haeng Joe1, Wei Ju2, Ji Hye An1, 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

Abstract

In this study, we fabricated air filters coated with Ag nanoparticles and evaluated their antibacterial efficiencies using colony counting method (CCM) and disc diffusion method (DDM) as a function of Ag nanoparticle content. Two kinds of bacterium Escherichia coli (Gram-negative bacterium), and Staphylococcus epidermidis (Gram-positive bacterium) were tested. As the amount of antibacterial agent increased, the inhibition zone width (IZW), which is the result of DDM, gradually increased and reached the maximum value, while the number of colony forming unit (CFU), which is the result of CCM, decreased and became zero. We derived a correlation equation using the CCM and DDM results, which was used to define the quantitative antibacterial efficiency of the filters according to DDM results.

Keywords

Air filter Antibacterial efficiency Colony counting method Correlation Disc diffusion method


Related Article

Correlation between the Antibacterial Ability of Silver Nanoparticle Coated Air Filters and the Dust Loading

Yun Haeng Joe, Wei Ju, Jae Hong Park, Young Hun Yoon, Jungho Hwang
Volume: 13 | Issue: 3 | Pages: 1009-1018
DOI: 10.4209/aaqr.2012.07.0191
PDF

Critical Emissions from the Largest On-Road Transport Network in South Asia

Saroj Kumar Sahu , Gufran Beig, Neha Parkhi
Volume: 14 | Issue: 1 | Pages: 135-144
DOI: 10.4209/aaqr.2013.04.0137
PDF

Ambient Air Quality during Diwali Festival over Kolkata – A Mega-City in India

A. Chatterjee , C. Sarkar, A. Adak, U. Mukherjee, S.K. Ghosh, S. Raha
Volume: 13 | Issue: 3 | Pages: 1133-1144
DOI: 10.4209/aaqr.2012.03.0062
PDF

Exploring the Variation between EC and BC in a Variety of Locations

Gbenga Oladoyin Salako, Philip K. Hopke , David D. Cohen, Bilkis A. Begum, Swapan K. Biswas, Gauri Girish Pandit, Yong-Sam Chung, Shamsiah Abd Rahman, Mohd Suhaimi Hamzah, Perry Davy, Andreas Markwitz, Dagva Shagjjamba, Sereeter Lodoysamba, Wanna Wimolwattanapun, Supamatthree Bunprapob
Volume: 12 | Issue: 1 | Pages: 1-7
DOI: 10.4209/aaqr.2011.09.0150
PDF
;