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1. WO2022016006 - PHOTOCATALYTIC AND PHOTO(ELECTRO)CATALYTIC APPROACHES FOR VIRAL DECONTAMINATION

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Publication Number WO/2022/016006
Publication Date 20.01.2022
International Application No. PCT/US2021/041873
International Filing Date 15.07.2021
IPC
A61L 2/10 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
02using physical phenomena
08Radiation
10Ultra-violet radiation
A61L 9/18 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
9Disinfection, sterilisation or deodorisation of air
16using physical phenomena
18Radiation
A61L 9/20 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
9Disinfection, sterilisation or deodorisation of air
16using physical phenomena
18Radiation
20Ultra-violet radiation
B01J 21/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
21Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
B01J 21/18 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
21Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
18Carbon
B01J 37/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
02Impregnation, coating or precipitation
CPC
A61L 2/10
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
02using physical phenomena
08Radiation
10Ultra-violet radiation
A61L 2202/13
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2202Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
10Apparatus features
13Biocide decomposition means, e.g. catalysts, sorbents
A61L 2209/16
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2209Aspects relating to disinfection, sterilisation or deodorisation of air
10Apparatus features
16Connections to a HVAC unit
A61L 9/205
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
9Disinfection, sterilisation or deodorisation of air
16using physical phenomena
18Radiation
20Ultra-violet radiation
205using a photocatalyst or photosensitiser
B01J 21/063
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
21Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
06Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
063Titanium; Oxides or hydroxides thereof
B01J 23/06
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
06of zinc, cadmium or mercury
Applicants
  • NEVADA RESEARCH & INNOVATION CORPORATION [US]/[US]
Inventors
  • SUBRAMANIAN, Vaidyanathan
  • VERMA, Subhash C.
Agents
  • SCHWARTZ, Johanna P.
  • SLATER, Stacey C.
Priority Data
63/053,25417.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PHOTOCATALYTIC AND PHOTO(ELECTRO)CATALYTIC APPROACHES FOR VIRAL DECONTAMINATION
(FR) APPROCHES PHOTOCATALYTIQUES ET PHOTO(ÉLECTRO)CATALYTIQUES DE DÉCONTAMINATION VIRALE
front page image
Abstract
(EN) Disclosed herein are systems and methods for decontaminating surfaces from human coronaviruses, such as SARS coronavirus 2 (SARS-CoV-2), and structures for decontamination from human coronaviruses. A structure for decontamination includes a first surface and a decontamination layer on the first surface. The decontamination layer comprises a nanostructured photocatalyst. Human coronaviruses on the decontamination layer are exposed to UV radiation and/or visible light. After the exposure, the human coronaviruses on the decontamination layer are inactivated. In some embodiments, the decontamination layer can include additives and/or an electrical bias can be applied to further reduce the exposure time required for viral inactivation.
(FR) L'invention concerne des systèmes et des méthodes de décontamination de surfaces de coronavirus humains, tels que le coronavirus du SARS 2 (SARS-CoV-2), et des structures de décontamination de coronavirus humains. Une structure de décontamination comprend une première surface et une couche de décontamination située sur la première surface. La couche de décontamination comprend un photocatalyseur nanostructuré. Des coronavirus humains situés sur la couche de décontamination sont exposés à un rayonnement UV et/ou à une lumière visible. Après l'exposition, les coronavirus humains situés sur la couche de décontamination sont inactivés. Selon certains modes de réalisation, la couche de décontamination peut comprendre des additifs et/ou une polarisation électrique peut être appliquée de façon à réduire davantage le temps d'exposition nécessaire à l'inactivation virale.
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