WO2008105934A3 - Inactivation of toxic agents and pathogens using chitosan - Google Patents

Inactivation of toxic agents and pathogens using chitosan Download PDF

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Publication number
WO2008105934A3
WO2008105934A3 PCT/US2007/079246 US2007079246W WO2008105934A3 WO 2008105934 A3 WO2008105934 A3 WO 2008105934A3 US 2007079246 W US2007079246 W US 2007079246W WO 2008105934 A3 WO2008105934 A3 WO 2008105934A3
Authority
WO
WIPO (PCT)
Prior art keywords
chitosan
toxic agents
pathogens
inactivation
filtering
Prior art date
Application number
PCT/US2007/079246
Other languages
French (fr)
Other versions
WO2008105934A2 (en
Inventor
Kenton W Gregory
Original Assignee
Oregon Biomedical Engineering
Kenton W Gregory
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oregon Biomedical Engineering, Kenton W Gregory filed Critical Oregon Biomedical Engineering
Publication of WO2008105934A2 publication Critical patent/WO2008105934A2/en
Publication of WO2008105934A3 publication Critical patent/WO2008105934A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N7/00—Viruses; Bacteriophages; Compositions thereof; Preparation or purification thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/10—Filter screens essentially made of metal
    • B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1615—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of natural origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1638—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
    • B01D39/1646—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of natural origin, e.g. cork or peat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216—Bicomponent or multicomponent fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0464—Impregnants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/90—Chelants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/95—Specific microorganisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/20—Organic adsorbents
    • B01D2253/202—Polymeric adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/60—Heavy metals or heavy metal compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/91—Bacteria; Microorganisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4541—Gas separation or purification devices adapted for specific applications for portable use, e.g. gas masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4583—Gas separation or purification devices adapted for specific applications for removing chemical, biological and nuclear warfare agents
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2740/00—Reverse transcribing RNA viruses
    • C12N2740/00011—Details
    • C12N2740/10011—Retroviridae
    • C12N2740/16011—Human Immunodeficiency Virus, HIV
    • C12N2740/16061—Methods of inactivation or attenuation
    • C12N2740/16063—Methods of inactivation or attenuation by chemical treatment

Abstract

Embodiments of the present invention provide methods and devices for filtering and/or inactivating toxic agents. More specifically, embodiments of the present invention provide methods and devices for filtering and/or inactivating toxic agents using chitosan filters.
PCT/US2007/079246 2006-09-22 2007-09-21 Inactivation of toxic agents and pathogens using chitosan WO2008105934A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82668406P 2006-09-22 2006-09-22
US60/826,684 2006-09-22

Publications (2)

Publication Number Publication Date
WO2008105934A2 WO2008105934A2 (en) 2008-09-04
WO2008105934A3 true WO2008105934A3 (en) 2008-11-20

Family

ID=39721762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/079246 WO2008105934A2 (en) 2006-09-22 2007-09-21 Inactivation of toxic agents and pathogens using chitosan

Country Status (1)

Country Link
WO (1) WO2008105934A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9216213B2 (en) * 2011-04-20 2015-12-22 Merial, Inc. Adjuvanted rabies vaccine with improved viscosity profile
PL225045B1 (en) * 2012-05-18 2017-02-28 Univ Jagielloński Use of chitosan polymer for the treatment and prophylaxis of infections caused by coronaviruses
TWI645037B (en) * 2017-11-27 2018-12-21 國立臺灣大學 Method for rejuvenation by chitosan and composition
WO2021209493A2 (en) * 2020-04-15 2021-10-21 Solyplus Gmbh Means and methods of preventing and treating infections
IT202000023794A1 (en) * 2020-10-09 2022-04-09 Graphene Xt S R L MATERIAL TO IMPROVE THE FILTERING CAPACITY OF FABRICS AND RELATED PROCEDURE FOR THE PRODUCTION OF FACE MASKS
DE202021101674U1 (en) * 2020-11-04 2021-11-11 Mslsolutions Gmbh Textile fabric with a virus-inhibiting finish
CN114767707A (en) * 2021-01-22 2022-07-22 艾美科健株式会社 Composition for preventing or treating coronavirus infection diseases comprising low molecular chitosan
KR102444839B1 (en) * 2021-01-22 2022-09-19 아미코젠주식회사 Composition for preventing or treating coronavirus infection comprising low molecular weight chitosan
DE102021000579B3 (en) * 2021-01-28 2022-01-27 Apodis Gmbh Filter element for filtering viruses and/or bacteria from a fluid, filter system, respirator, method for manufacturing the filter element and use of a material composition
WO2022185326A1 (en) * 2021-03-03 2022-09-09 Amitava Mazumder Antiviral, anti sars-cov-2, anti h1n3, antibacterial and antimicrobial compositions and methods of preparation thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789475A (en) * 1987-06-23 1988-12-06 Environmental Concerns, Inc. Water purification material, process therefor, and device for the removal of heavy metal toxins
US5783502A (en) * 1995-06-07 1998-07-21 Bsi Corporation Virus inactivating coatings
US5840760A (en) * 1996-11-19 1998-11-24 Florida Atlantic University materials and methods for controlling methicillin-resistant Staphylococcus aureus microbes
US6681765B2 (en) * 2001-12-18 2004-01-27 Sheree H. Wen Antiviral and antibacterial respirator mask
US20040109853A1 (en) * 2002-09-09 2004-06-10 Reactive Surfaces, Ltd. Biological active coating components, coatings, and coated surfaces

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789475A (en) * 1987-06-23 1988-12-06 Environmental Concerns, Inc. Water purification material, process therefor, and device for the removal of heavy metal toxins
US5783502A (en) * 1995-06-07 1998-07-21 Bsi Corporation Virus inactivating coatings
US5840760A (en) * 1996-11-19 1998-11-24 Florida Atlantic University materials and methods for controlling methicillin-resistant Staphylococcus aureus microbes
US6681765B2 (en) * 2001-12-18 2004-01-27 Sheree H. Wen Antiviral and antibacterial respirator mask
US20040109853A1 (en) * 2002-09-09 2004-06-10 Reactive Surfaces, Ltd. Biological active coating components, coatings, and coated surfaces

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"HIV InSite Web site", INTRODUCTION, December 2005 (2005-12-01), pages 2 *
BORREGO ET AL.: "Development and Application of New Positively Charged Filters for Recovery of Bacteriophages from Water.", APPLIED AND ENVIRONMENTAL MICROBIOLOGY., vol. 57, no. 4, April 1991 (1991-04-01), pages 1218 - 1222, XP055354970 *

Also Published As

Publication number Publication date
WO2008105934A2 (en) 2008-09-04

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