skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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

Journal Article · · Building and Environment

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. Here, 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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2320386
Journal Information:
Building and Environment, Vol. 250; ISSN 0360-1323
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (44)

Evaluation of multiple fixed in-room air cleaners with ultraviolet germicidal irradiation, in high-occupancy areas of selected commercial indoor environments journal December 2021
Disinfection technology and strategies for COVID-19 hospital and bio-medical waste management journal December 2020
Rechargeable antimicrobial coatings for poly(lactic acid) nonwoven fabrics journal January 2013
Unusual Boronium Salt Shows Antifungal Activity Comparable to a Commercial Quaternary Ammonium Disinfectant journal March 2022
Construction of ultra-stable polypropylene membrane by in-situ growth of nano-metal–organic frameworks for air filtration journal February 2022
Effective antiviral coatings for deactivating SARS-CoV-2 virus on N95 respirator masks or filters journal June 2022
Effect of equipment layout on bioaerosol temporal-spatial distribution and deposition in one BSL-3 laboratory journal August 2020
Comparison of the bacterial removal performance of silver nanoparticles and a polymer based quaternary amine functiaonalized silsesquioxane coated point-of-use ceramic water filters journal September 2013
A coupled computational fluid dynamics and back-propagation neural network-based particle swarm optimizer algorithm for predicting and optimizing indoor air quality journal January 2022
New Antimicrobially Amended Media for Improved Nonpoint Source Bacterial Pollution Treatment journal November 2015
Updating a B. anthracis Risk Model with Field Data from a Bioterrorism Incident journal May 2015
Improved Recovery of Captured Airborne Bacteria and Viruses with Liquid-Coated Air Filters journal November 2022
Ti3C2TX MXene Modified with ZnTCPP with Bacteria Capturing Capability and Enhanced Visible Light Photocatalytic Antibacterial Activity journal June 2022
A review on sterilization methods of environmental decontamination to prevent the coronavirus SARS-CoV-2 (COVID-19 virus): A new challenge towards eco-friendly solutions journal December 2023
Nanotechnologies for the Diagnosis and Treatment of SARS‐CoV‐2 and Its Variants journal May 2023
The antibacterial performance of positively charged and chitosan dipped air filter media journal August 2020
Tailoring Nanonets‐Engineered Superflexible Nanofibrous Aerogels with Hierarchical Cage‐Like Architecture Enables Renewable Antimicrobial Air Filtration journal September 2021
Versatile nanofibrous filters against fine particulates and bioaerosols containing tuberculosis and virus: Multifunctions and scalable processing journal November 2021
A Rapid and High-Throughput Assay for Light Scattering of SARS-CoV-2 Virion-Sized Particulates via Microfluidic Spray Device Reveals the Protection Performance of Face Masks against Virus Infection journal August 2022
Insights into the mechanism of enhanced photocatalytic dye degradation and antibacterial activity over ternary ZnO/ZnSe/MoSe2 photocatalysts under visible light irradiation journal February 2021
Challenges to global pandemic mortality estimation journal August 2014
Wastewater surveillance of SARS-CoV-2 and chemical markers in campus dormitories in an evolving COVID − 19 pandemic journal March 2023
Rechargeable polyamide-based N-halamine nanofibrous membranes for renewable, high-efficiency, and antibacterial respirators journal January 2019
Silica-quaternary ammonium “Fixed-Quat” nanofilm coated fiberglass mesh for water disinfection and harmful algal blooms control journal August 2019
Lung Organoids as Model to Study SARS-CoV-2 Infection journal September 2022
Nanostructured composite coating endowed with antiviral activity against human respiratory viruses deposited on fibre-based air filters journal March 2021
Fabrication of Poly(lactic acid) filter media via the meltblowing process and their filtration performances: A comparative study with polypropylene meltblown journal April 2021
Recent developments in filtration media and respirator technology in response to COVID-19 journal September 2021
Disinfectant-induced hormesis: An unknown environmental threat of the application of disinfectants to prevent SARS-CoV-2 infection during the COVID-19 pandemic? journal January 2022
TiO2/BiOI p-n junction-decorated carbon fibers as weavable photocatalyst with UV–vis photoresponsive for efficiently degrading various pollutants journal July 2021
Polymeric antibacterial materials: design, platforms and applications journal January 2021
Highly effective antibacterial polycaprolactone fibrous membranes bonded with N-Halamine/ZnO hybrids journal December 2019
Kinetics of Alkoxysilanes and Organoalkoxysilanes Polymerization: A Review journal March 2019
Uncertainty analysis of facemasks in mitigating SARS-CoV-2 transmission journal June 2022
From disinfectants to antibiotics: Enhanced biosafety of quaternary ammonium compounds by chemical modification journal October 2023
Antibacterial surface design – Contact kill journal August 2016
Novel TiO2 thin films/glass fiber photocatalytic reactors in the removal of bioaerosols journal December 2010
Preparation of Airborne Ag/CNT Hybrid Nanoparticles Using an Aerosol Process and Their Application to Antimicrobial Air Filtration journal August 2011
Polyvinylidene fluoride multi-scale nanofibrous membrane modified using N-halamine with high filtration efficiency and durable antibacterial properties for air filtration journal December 2022
Molecular approaches for the detection and monitoring of microbial communities in bioaerosols: A review journal January 2017
Photodegradation of gaseous toluene and disinfection of airborne microorganisms from polluted air using immobilized TiO2 nanoparticle photocatalyst–based filter journal April 2020
Application of a quaternary ammonium agent on surgical face masks before use for pre-decontamination of nosocomial infection-related bioaerosols journal January 2016
Antibacterial and antiviral N-halamine nanofibrous membranes with nanonet structure for bioprotective applications journal April 2021
From Antibacterial to Antibiofilm Targeting: An Emerging Paradigm Shift in the Development of Quaternary Ammonium Compounds (QACs) journal February 2023