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公开(公告)号：US09988664B2
公开(公告)日：2018-06-05
申请号：US14950813
申请日：2015-11-24
Applicant: RESEARCH TRIANGLE INSTITUTE
Inventor： David Samuel Ensor , Howard Jerome Walls , Karin K Foarde
CPC classification number: C12Q1/24 , B01D2239/025 , B01D2239/0604 , B82Y15/00 , G01N1/2205 , G01N1/2208 , G01N1/2214 , G01N33/497 , G01N2001/2223
Abstract: A bioparticle collection device and an aerosol collection system. The bioparticle collection device includes a collection medium including a plurality of fibers formed into a fiber mat and configured to collect bioparticles thereon, and includes a viability enhancing material provider disposed in a vicinity of the plurality of fibers and configured to provide a viability enhancing material to the collected bioparticles to maintain viability of the bioparticles collected by the fiber mat. The aerosol collection system includes an aerosol pumping device configured to entrain particles in an gas stream, an aerosol saturation device configured to saturate the particles in the gas stream with a biocompatible liquid, and an aerosol collection medium downstream from the aerosol saturation device and including a plurality of fibers formed into a fiber mat for collection of the saturated aerosol particles.
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公开(公告)号：US20170241893A1
公开(公告)日：2017-08-24
申请号：US15048199
申请日：2016-02-19
Applicant: Research Triangle Institute
Inventor： Howard Jerome Walls , Anthony Clint Clayton , Randall J. Newsome , Paul G. Hoertz
CPC classification number: G01N15/1436 , G01N15/0205 , G01N15/1459 , G01N21/53 , G01N21/645 , G01N21/6486 , G01N2015/0046 , G01N2015/1486 , G01N2015/1493 , G01N2021/4721 , G01N2201/06113 , G01N2201/062
Abstract: A particle detector includes a housing, a light source, and a photo-responsive material. The housing includes a sample inlet and a sample outlet, and encloses a detection cavity. The light source directs irradiating light to particles of a sample fluid flowing in the detection cavity. The photo-responsive material faces the detection cavity, and receives measurement light propagating from the particles in a plurality of measurement light paths angled relative to a longitudinal axis. The particle detector may be utilized to measure scattered light and/or light emitted due to autofluorescence. Fluids sampled may include aerosols, bio-aerosols, and liquids.
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公开(公告)号：US20210338879A1
公开(公告)日：2021-11-04
申请号：US17245529
申请日：2021-04-30
Applicant: Research Triangle Institute
Inventor： James Lynn Davis , Howard Jerome Walls , Karmann C. Mills , David Edward Dausch
Abstract: An air filtration media with integrated disinfection capability. The media has a collection filter for capture of pathogens, and an ultraviolet (UV) radiation source integrated into the collection filter such that the pathogens collected by the collection filter are exposed to UV radiation from the UV radiation source.
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公开(公告)号：US20200347434A1
公开(公告)日：2020-11-05
申请号：US16884764
申请日：2020-05-27
Applicant: Research Triangle Institute
Inventor： David S. Ensor , Howard Jerome Walls , Karin K. Foarde , Susanne Vera Hering , Steven Russel Spielman
IPC: C12Q1/24
Abstract: An aerosol collection system and method. The system includes a bio-aerosol delivery device configured to supply bioparticles in a gas stream, a moisture exchange device including a partition member coupled to the gas stream and configured to humidify or dehumidify the bioparticles in the gas stream, and an aerosol collection medium downstream from the moisture exchange device and configured to collect the bioparticles. The method includes delivering bioparticles in a gas stream, humidifying or dehumidifying the bioparticles in the gas stream by transport of water across a partition member and into a vapor phase of the gas stream, and collecting the bioparticles by a collection medium.
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公开(公告)号：US10208331B2
公开(公告)日：2019-02-19
申请号：US15965040
申请日：2018-04-27
Applicant: Research Triangle Institute
Inventor： David Samuel Ensor , Howard Jerome Walls , Karin K. Foarde
IPC: C12Q1/00 , C12Q1/24 , B82Y15/00 , G01N1/22 , G01N33/497
Abstract: A bioparticle collection device and an aerosol collection system. The bioparticle collection device includes a collection medium including a plurality of fibers formed into a fiber mat and configured to collect bioparticles thereon, and includes a viability enhancing material provider disposed in a vicinity of the plurality of fibers and configured to provide a viability enhancing material to the collected bioparticles to maintain viability of the bioparticles collected by the fiber mat. The aerosol collection system includes an aerosol pumping device configured to entrain particles in an gas stream, an aerosol saturation device configured to saturate the particles in the gas stream with a biocompatible liquid, and an aerosol collection medium downstream from the aerosol saturation device and including a plurality of fibers formed into a fiber mat for collection of the saturated aerosol particles.
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Patent Agency Ranking
公开(公告)号：US10188973B2
公开(公告)日：2019-01-29
申请号：US14646165
申请日：2013-12-06
Applicant: Research Triangle Institute
Inventor： Anthony Clint Clayton , Howard Jerome Walls , Adam Joseph Rieth , David Samuel Ensor
IPC: B01D39/00
Abstract: A filtration device including a base filtration material having openings for fluid flow there through and a filtration medium. The filtration medium includes a plurality of patterned nanofibers formed on the base filtration material. The filtration medium has a figure of merit greater than 30 kPa−1, where the figure of merit is given by −Log (Pt)/ΔP, where Pt is the fractional penetration of a specific aerosol particle diameter and ΔP is a pressure drop across the filtration medium corresponding to a face velocity of 5.3 cm/s and particle size of 0.3 microns.
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公开(公告)号：US20180245126A1
公开(公告)日：2018-08-30
申请号：US15965040
申请日：2018-04-27
Applicant: Research Triangle Institute
Inventor： David Samuel Ensor , Howard Jerome Walls , Karin K. Foarde
CPC classification number: C12Q1/24 , B01D2239/025 , B01D2239/0604 , B82Y15/00 , G01N1/2205 , G01N1/2208 , G01N1/2214 , G01N33/497 , G01N2001/2223
Abstract: A bioparticle collection device and an aerosol collection system. The bioparticle collection device includes a collection medium including a plurality of fibers formed into a fiber mat and configured to collect bioparticles thereon, and includes a viability enhancing material provider disposed in a vicinity of the plurality of fibers and configured to provide a viability enhancing material to the collected bioparticles to maintain viability of the bioparticles collected by the fiber mat. The aerosol collection system includes an aerosol pumping device configured to entrain particles in an gas stream, an aerosol saturation device configured to saturate the particles in the gas stream with a biocompatible liquid, and an aerosol collection medium downstream from the aerosol saturation device and including a plurality of fibers formed into a fiber mat for collection of the saturated aerosol particles.
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公开(公告)号：US20180149578A1
公开(公告)日：2018-05-31
申请号：US15877991
申请日：2018-01-23
Applicant: Research Triangle Institute
Inventor： Howard Jerome Walls , Anthony Clint Clayton , Randall J. Newsome , Paul G. Hoertz
CPC classification number: G01N15/1436 , G01N15/0205 , G01N15/1459 , G01N21/53 , G01N21/645 , G01N21/6486 , G01N2015/0046 , G01N2015/1486 , G01N2015/1493 , G01N2021/4721 , G01N2201/06113 , G01N2201/062
Abstract: A particle detector includes a housing, a light source, and a photo-responsive material. The housing includes a sample inlet and a sample outlet, and encloses a detection cavity. The light source directs irradiating light along a longitudinal axis to particles of a sample fluid flowing in the detection cavity. The photo-responsive material surrounds at least a portion of the detection cavity, and receives measurement light propagating from the particles in a plurality of measurement light paths angled relative to the longitudinal axis. The particle detector may be utilized to measure scattered light and/or light emitted due to autofluorescence. Fluids sampled may include aerosols, bio-aerosols, and liquids.
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公开(公告)号：US12194205B2
公开(公告)日：2025-01-14
申请号：US17245529
申请日：2021-04-30
Applicant: Research Triangle Institute
Inventor： James Lynn Davis , Howard Jerome Walls , Karmann C. Mills , David Edward Dausch
Abstract: An air filtration media with integrated disinfection capability. The media has a collection filter for capture of pathogens, and an ultraviolet (UV) radiation source integrated into the collection filter such that the pathogens collected by the collection filter are exposed to UV radiation from the UV radiation source.
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公开(公告)号：US20200340899A1
公开(公告)日：2020-10-29
申请号：US16861550
申请日：2020-04-29
Applicant: Research Triangle Institute
Inventor： Anthony Clint Clayton , Howard Jerome Walls , Roger H. Pope
Abstract: An optical system for particle detection. The system includes a sample inlet housing; a sample outlet housing; a detection cavity having an axially surrounding wall and disposed between the sample inlet housing and the sample outlet housing; a light source configured to irradiate light through the detection cavity to particles of a sample fluid flowing inside the wall of the detection cavity; a light detector for detecting the light that is scattered by particles of the sample fluid in the detection cavity; an alignment rail having a base and sidewalls which a) extend from the sample inlet housing to the sample outlet housing and b) connect the sample inlet housing to the sample outlet housing; and the alignment rail comprising a channel formed by the base and the sidewalls, the channel having a channel lateral width fitting to a housing width of at least one of the sample inlet housing and the sample outlet housing, whereby the sample inlet housing, the housing, and the sample outlet housing are held in alignment together.
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