Quaternary ammonium salt coated air filter for bioaerosol removal from building indoor air

Huixin Jiang; Kai Li; David E. Graham; Attelia Hollander; Mariappan P. Paranthaman; M. Muneeshwaran; Xiaoli Liu; Merlin Theodore; Tolga Aytug; Keju An; Kashif Nawaz

doi:10.1016/j.buildenv.2023.111158

Quaternary ammonium salt coated air filter for bioaerosol removal from building indoor air

Huixin Jiang, Kai Li, David E. Graham, Attelia Hollander, Mariappan P. Paranthaman, M. Muneeshwaran, Xiaoli Liu, Merlin Theodore, Tolga Aytug, Keju An, Kashif Nawaz

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Developing air filters with biocidal ability is important to protect the public from infectious respiratory diseases. A simple spray-coating approach was devised to fabricate antimicrobial air filters to remove bioaerosols. The commercial antimicrobial agent Goldshield 75 was coated on the air filters through covalent immobilization, endowing the fabricated filter with long-lasting biocidal ability. All coated filters significantly inhibited both Gram-positive bacteria (Micrococcus luteus) and Gram-negative bacteria (Escherichia coli). The antibacterial ability of the coated filters is similar to the commercial AeraSafe antibacterial filter. The coated filter showed over 99.9 % antibacterial efficiency 3 months after the application of the coating. Both bacterial and virus filtration efficiencies of coated charged polypropylene filter were higher than 99.9 %. The coating did not have much effect on the NaCl aerosol filtration efficiency of the filters. This simple spray-coating strategy is a practical method for producing antimicrobial air filters for the prevention of infectious respiratory diseases.

Original language	English
Article number	111158
Journal	Building and Environment
Volume	250
DOIs	https://doi.org/10.1016/j.buildenv.2023.111158
State	Published - Feb 15 2024

Funding

Notice: This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( https://www.energy.gov/doe-public-access-plan ). This research was supported by the US Department of Energy ( DOE ) Office of Energy Efficiency and Renewable Energy's Buildings Technology Office under contract DE-AC05-00OR22725 with UT- Battelle LLC. This research used resources at the Building Technologies Research and Integration Center, Carbon Fiber Technology Facility, and Center for Nanophase Materials Sciences, which are DOE Office of Science User Facilities operated by the Oak Ridge National Laboratory. Notice: This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (https://www.energy.gov/doe-public-access-plan).This research was supported by the US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy's Buildings Technology Office under contract DE-AC05-00OR22725 with UT-Battelle LLC. This research used resources at the Building Technologies Research and Integration Center, Carbon Fiber Technology Facility, and Center for Nanophase Materials Sciences, which are DOE Office of Science User Facilities operated by the Oak Ridge National Laboratory.

Funders	Funder number
Battelle LLC
Center for Nanophase Materials Sciences
DOE Public Access Plan
Office of Energy Efficiency and Renewable Energy's Buildings Technology Office	DE-AC05-00OR22725
U.S. Department of Energy
Oak Ridge National Laboratory
UT-Battelle

Keywords

Air filter
Antibacterial
Bioaerosol
Indoor air quality
Quaternary ammonium salt

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.buildenv.2023.111158

Cite this

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title = "Quaternary ammonium salt coated air filter for bioaerosol removal from building indoor air",

abstract = "Developing air filters with biocidal ability is important to protect the public from infectious respiratory diseases. A simple spray-coating approach was devised to fabricate antimicrobial air filters to remove bioaerosols. The commercial antimicrobial agent Goldshield 75 was coated on the air filters through covalent immobilization, endowing the fabricated filter with long-lasting biocidal ability. All coated filters significantly inhibited both Gram-positive bacteria (Micrococcus luteus) and Gram-negative bacteria (Escherichia coli). The antibacterial ability of the coated filters is similar to the commercial AeraSafe antibacterial filter. The coated filter showed over 99.9 % antibacterial efficiency 3 months after the application of the coating. Both bacterial and virus filtration efficiencies of coated charged polypropylene filter were higher than 99.9 %. The coating did not have much effect on the NaCl aerosol filtration efficiency of the filters. This simple spray-coating strategy is a practical method for producing antimicrobial air filters for the prevention of infectious respiratory diseases.",

keywords = "Air filter, Antibacterial, Bioaerosol, Indoor air quality, Quaternary ammonium salt",

author = "Huixin Jiang and Kai Li and Graham, {David E.} and Attelia Hollander and Paranthaman, {Mariappan P.} and M. Muneeshwaran and Xiaoli Liu and Merlin Theodore and Tolga Aytug and Keju An and Kashif Nawaz",

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year = "2024",

month = feb,

day = "15",

doi = "10.1016/j.buildenv.2023.111158",

language = "English",

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AU - Jiang, Huixin

AU - Li, Kai

AU - Graham, David E.

AU - Hollander, Attelia

AU - Paranthaman, Mariappan P.

AU - Muneeshwaran, M.

AU - Liu, Xiaoli

AU - Theodore, Merlin

AU - Aytug, Tolga

AU - An, Keju

AU - Nawaz, Kashif

PY - 2024/2/15

Y1 - 2024/2/15

N2 - Developing air filters with biocidal ability is important to protect the public from infectious respiratory diseases. A simple spray-coating approach was devised to fabricate antimicrobial air filters to remove bioaerosols. The commercial antimicrobial agent Goldshield 75 was coated on the air filters through covalent immobilization, endowing the fabricated filter with long-lasting biocidal ability. All coated filters significantly inhibited both Gram-positive bacteria (Micrococcus luteus) and Gram-negative bacteria (Escherichia coli). The antibacterial ability of the coated filters is similar to the commercial AeraSafe antibacterial filter. The coated filter showed over 99.9 % antibacterial efficiency 3 months after the application of the coating. Both bacterial and virus filtration efficiencies of coated charged polypropylene filter were higher than 99.9 %. The coating did not have much effect on the NaCl aerosol filtration efficiency of the filters. This simple spray-coating strategy is a practical method for producing antimicrobial air filters for the prevention of infectious respiratory diseases.

AB - Developing air filters with biocidal ability is important to protect the public from infectious respiratory diseases. A simple spray-coating approach was devised to fabricate antimicrobial air filters to remove bioaerosols. The commercial antimicrobial agent Goldshield 75 was coated on the air filters through covalent immobilization, endowing the fabricated filter with long-lasting biocidal ability. All coated filters significantly inhibited both Gram-positive bacteria (Micrococcus luteus) and Gram-negative bacteria (Escherichia coli). The antibacterial ability of the coated filters is similar to the commercial AeraSafe antibacterial filter. The coated filter showed over 99.9 % antibacterial efficiency 3 months after the application of the coating. Both bacterial and virus filtration efficiencies of coated charged polypropylene filter were higher than 99.9 %. The coating did not have much effect on the NaCl aerosol filtration efficiency of the filters. This simple spray-coating strategy is a practical method for producing antimicrobial air filters for the prevention of infectious respiratory diseases.

KW - Air filter

KW - Antibacterial

KW - Bioaerosol

KW - Indoor air quality

KW - Quaternary ammonium salt

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JO - Building and Environment

JF - Building and Environment

M1 - 111158

ER -

Quaternary ammonium salt coated air filter for bioaerosol removal from building indoor air

Abstract

Funding

Keywords

UN SDGs

Access to Document

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