About: Synthesis of hybrid carbon nanotube structures coated with Sophora flavescens nanoparticles and their application to antimicrobial air filtration

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About: Synthesis of hybrid carbon nanotube structures coated with Sophora flavescens nanoparticles and their application to antimicrobial air filtration Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Synthesis of hybrid carbon nanotube structures coated with Sophora flavescens nanoparticles and their application to antimicrobial air filtration
Creator	Bae, Gwi-Nam Jung, Jae Hwang, Gi Sim, Mi
Source	Elsevier; Medline; PMC
abstract	Abstract Controlling airborne microorganisms has become increasingly important with increase in human indoor activities, epidemic disease outbreaks, and airborne pathogen transmission. Treatments using antimicrobial nanoparticles have shown promise because of the high surface-to-volume ratio of nanoparticles compared to their bulk counterparts, and their unique physical and chemical properties. In this study, hybrid nanostructures of multi-walled carbon nanotubes (MWCNTs) coated with antimicrobial, natural product (NP) nanoparticles were synthesized using a twin-head electrospray system (THES). The coated nanoparticles were then used in antimicrobial air filters to increase their antimicrobial efficiency. Electrosprayed droplets were converted to NP nanoparticles and MWCNTs through ethanol evaporation. Oppositely charged NP nanoparticles and MWCNTs were coagulated via Coulombic collisions to form hybrid nanoparticles that were deposited continuously onto an air filter medium. The size distribution and composition of the hybrid NP/MWCNT particles were characterized using a wide-range particle spectrometer (WPS) and transmission electron microscope (TEM). The concentration of hybrid NP/MWCNT nanoparticles was lower than that of NP nanoparticles but higher than that of MWCNTs and showed a bimodal size distribution with peak diameters of 21.1 and 49nm. TEM analyses confirmed that the NP nanoparticles were attached to the MWCNT surface with a density of ~4–9 particles/MWCNT. When deposited onto the filter medium, NP/MWCNT particles formed dendrites on the filter׳s fiber surface. The filtration efficiency and pressure drop of the NP/MWCNT-coated filters were higher than those of pristine, NP nanoparticles-coated or MWCNTs-coated filters. The hybrid filter also exhibited stronger antimicrobial activity than those of NP or MWCNT-coated filters at identical deposited volumes (1.1×10–2 cm3/cm2 filter). Ninety-five percent of the tested bacterial aerosols were inactivated on the NP/MWCNTs filter while only <70% were inactivated on NP- or MWCNT-coated filters.
has issue date	2015-08-31(xsd:dateTime)
bibo:doi	10.1016/j.jaerosci.2015.04.004
bibo:pmid	32226126
has license	els-covid
sha1sum (hex)	ee5ee45366753b52ea76058be790ec3e611f8cbb
schema:url	https://doi.org/10.1016/j.jaerosci.2015.04.004
resource representing a document's title	Synthesis of hybrid carbon nanotube structures coated with Sophora flavescens nanoparticles and their application to antimicrobial air filtration
has PubMed Central identifier	PMC7094255
has PubMed identifier	32226126
schema:publication	Journal of Aerosol Science
resource representing a document's body	covid:ee5ee45366753b52ea76058be790ec3e611f8cbb#body_text
is schema:about of	named entity 'efficiency' named entity 'antimicrobial' named entity 'Controlling' named entity 'fiber' named entity 'filter' named entity 'pressure drop' named entity 'antimicrobial' named entity 'AIR FILTRATION' named entity 'COATED' named entity 'NANOPARTICLES' named entity 'NINETY' named entity 'STUDY' named entity 'RANGE' named entity 'CHARACTERIZED' named entity 'COATED' named entity 'USING' named entity '27S' named entity 'TWIN' named entity 'DENDRITES' named entity 'TESTED' named entity 'ACTIVITIES' named entity 'O70' named entity 'TO FORM' named entity 'BULK' named entity 'IMPORTANT' named entity 'TEM' named entity 'AIRBORNE' named entity 'FIBER' named entity 'EVAPORATION' named entity 'ANTIMICROBIAL ACTIVITY' named entity 'SURFACE' named entity 'BUT' named entity 'NATURAL PRODUCT' named entity 'INCREASE' named entity 'MWCNT' named entity 'PERCENT' named entity 'IDENTICAL' named entity 'DIAMETERS' named entity 'CONCENTRATION OF' named entity 'LOWER' covid:arg/ee5ee45366753b52ea76058be790ec3e611f8cbb named entity 'SOPHORA FLAVESCENS' named entity 'THEIR' named entity 'MEDIUM' named entity 'SIZE DISTRIBUTION' named entity 'AIR FILTER' named entity 'PARTICLES' named entity 'TRANSMISSION ELECTRON MICROSCOPE' named entity 'COLLISIONS' named entity 'INACTIVATED' named entity 'EFFICIENCY' named entity 'INDOOR' named entity 'TO INCREASE' named entity 'FORMED' named entity 'SYSTEM' named entity 'BACTERIAL' named entity 'VOLUME RATIO' named entity 'AIR FILTERS' named entity 'EPIDEMIC DISEASE' named entity 'SPECTROMETER' named entity 'THEIR' named entity 'ANTIMICROBIAL' named entity 'CONTROLLING' named entity 'USED' named entity 'NANOPARTICLES' named entity 'STRUCTURES' named entity 'CARBON NANOTUBE' named entity 'ANTIMICROBIAL' named entity 'COMPOSITION' named entity 'UNIQUE' named entity 'DEPOSITED' named entity 'NANOSTRUCTURES' named entity 'VOLUMES' named entity 'FILTER' named entity 'HYBRID' named entity 'APPLICATION' named entity 'SYNTHESIS' named entity 'DISEASE OUTBREAKS'

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