Washable antimicrobial polyester/aluminum air filter with a high capture efficiency and low pressure drop

Choi, Dong Yun; Heo, Ki Joon; Kang, Ju‐Hee; An, Eun Jeong; Jung, Sunggoo; Lee, Byung Uk; Lee, Hye Moon; Jung, Jae Hee

doi:10.1016/j.jhazmat.2018.02.043

Cited by 76 publications

(47 citation statements)

References 48 publications

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“…Staphylococcus epidermidis (ATCC 12228) and Micrococcus luteus (ATCC 9341) were used as the test airborne microorganisms. These Gram-positive bacteria are commonly found in indoor environments and on human skin [31,32], and are used widely in bioaerosol research [21,[33][34][35]. In particular, S. epidermidis is an important opportunistic pathogen and is the most common source of infections on indwelling medical devices [36].…”

Section: Test Particles and Microorganismsmentioning

confidence: 99%

Development of an automated wet-cyclone system for rapid, continuous and enriched bioaerosol sampling and its application to real-time detection

Cho

Hong

Choi

et al. 2019

Sensors and Actuators B: Chemical

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A B S T R A C TWe present a novel bioaerosol sampling system based on a wet-cyclone for real-time and continuous monitoring of airborne microorganisms. The Automated and Real-time Bioaerosol Sampler based on Wet-cyclone (ARBSW) continuously collects bioaerosols in a liquid medium and delivers the samples to a sensing device using a wireless remote control system. Based on a high air-to-liquid-flow-rate ratio (∼ 1.4 × 10 5 ) and a stable liquid thin film within a wet-cyclone, the system achieved excellent sampling performance as indicated by the high concentration and viability of bioaerosols (> 95% collection efficiency for > 0.5-μm-diameter particles, > 95% biological collection efficiency for Staphylococcus epidermidis and Micrococcus luteus). Furthermore, the continuous and real-time sampling performance of the ARBSW system under test-bed conditions and during a field test demonstrated that the ARBSW is capable of continuously monitoring bioaerosols in real time with high sensitivity. Therefore, the ARBSW shows promise for continuous real-time monitoring of bioaerosols and will facilitate the management of bioaerosol-related health and environmental issues.

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Section: Test Particles and Microorganismsmentioning

confidence: 99%

Development of an automated wet-cyclone system for rapid, continuous and enriched bioaerosol sampling and its application to real-time detection

Cho

Hong

Choi

et al. 2019

Sensors and Actuators B: Chemical

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“…Recently, air filters are widely used to capture bioaerosols due to their simplicity and low cost [35]. Even though an air filter is able to capture bioaerosols, they can remain viable in the filter, grow, and resuspended into an air stream thus possessing a risk to become a secondary source of pollutant [36]. Therefore, numerous studies have been devoted to prepare air filters which have antimicrobial properties by introducing antimicrobial agents (Table 2).…”

Section: Antimicrobial Air Filtermentioning

confidence: 99%

“…Depositing nanoparticle of antimicrobial agent onto membrane surface may be conducted by dip-coating [13,36,40,[54][55][56], layer-by-layer coating [44], spray coating [46], nebulization process (aerosol process) [34,37,38,42,48], and electro-spraying [4,43,49]. Illustrations of the methods are shown in Fig.…”

Section: Preparation Of Antimicrobial Air Filtermentioning

confidence: 99%

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Recent advances in antimicrobial air filter

et al. 2018

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The worsening air quality has become an environmental issue since it has a serious effect on human health. This is generally attributed to airborne particles including various pathogens and others fine particles. Even though air filters show excellent removal efficiency towards pathogens, the captured microorganism can remain viable in the filter, grow, and re-suspended into an air stream resulting in a secondary source of pollutants. Considerable studies have been conducted to develop air filters which also have antibacterial properties for solving this issue. Results of several studies showed that air filters with antimicrobial activities have been successfully prepared by incorporating inorganic nanoparticles and natural plant extracts. With antibacterial properties, the air filters may be potentially used to control air quality, particularly for indoor spaces e.g. hospitals, by removing fine particles and inhibiting microorganism. In this paper, the recent development of antimicrobial air filter is reviewed. In addition, preparation and performance of developed antimicrobial filters are discussed. Prospects and challenges of antimicrobial air filter are also pointed out.

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“…Work by Jung at al. has additionally shown that a polyester membrane coated with aluminum can also efficiently perform air filtration, but the composite was not made from electrospinning [60].…”

Section: Polyestersmentioning

confidence: 99%

Electrospun polymeric nanofibrous membranes for water treatment

Snowdon¹,

Liang²

2018

Preprint

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A necessity for water filtration technology, due to global pollution and population growth, has led to an increase in attention to advanced nanomaterials that can aid in the purification of air and water. This size-dependent filtration is possible via nanofibrous membranes as they contain high porosity and this pore size is tunable through the fabrication process. Because of this tunability in the nanofibril membrane composition and structure, they possess promising straining abilities, such as high permeability and selectivity, as well as low fouling. There are a variety of polymer blends or organic/inorganic nanofillers that can be used depending on filtration needs. The production of nanofibers consists of various avenues such as synthetic templates, separation by different phases, nanoparticle self-assembly, and most widespread, electrospinning. Electrospinning is prevalent owing to its ease of use and low cost compared to template and self- assembly processes. This chapter describes the multifaceted progression governing electrospinning and its working factors as well as the environmental settings that form nanofibers and their resultant membranes. Additionally, the various designs of electrospinning apparatuses' and review of the methods used to prepare multifunctional composite electrospun nanofibrous membranes will be discussed. Past achievements and current challenges will be provided. Conclusions and perspectives are specified fitting to studied progress so far as well as future needs with regards to water treatment, with a particular focus on industrial applications.

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Washable antimicrobial polyester/aluminum air filter with a high capture efficiency and low pressure drop

Cited by 76 publications

References 48 publications

Development of an automated wet-cyclone system for rapid, continuous and enriched bioaerosol sampling and its application to real-time detection

Development of an automated wet-cyclone system for rapid, continuous and enriched bioaerosol sampling and its application to real-time detection

Recent advances in antimicrobial air filter

Electrospun polymeric nanofibrous membranes for water treatment

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