US3912450A - Method for synergistic disinfection or sterilization - Google Patents
Method for synergistic disinfection or sterilization Download PDFInfo
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- US3912450A US3912450A US361148A US36114873A US3912450A US 3912450 A US3912450 A US 3912450A US 361148 A US361148 A US 361148A US 36114873 A US36114873 A US 36114873A US 3912450 A US3912450 A US 3912450A
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- glutaraldehyde
- weight
- nonionic
- sporicidal
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 15
- 230000002195 synergetic effect Effects 0.000 title abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 title description 12
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 230000003330 sporicidal effect Effects 0.000 claims abstract description 30
- 239000007791 liquid phase Substances 0.000 claims abstract description 9
- 230000000249 desinfective effect Effects 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 28
- 239000004094 surface-active agent Substances 0.000 claims description 17
- -1 anionic alkyl aryl sulfonate Chemical class 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 150000001298 alcohols Chemical class 0.000 claims description 6
- 159000000011 group IA salts Chemical class 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 abstract description 16
- 239000003945 anionic surfactant Substances 0.000 abstract description 9
- 230000001476 alcoholic effect Effects 0.000 abstract description 2
- 210000004215 spore Anatomy 0.000 description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 14
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000002604 ultrasonography Methods 0.000 description 8
- 244000063299 Bacillus subtilis Species 0.000 description 6
- 235000014469 Bacillus subtilis Nutrition 0.000 description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 125000000129 anionic group Chemical group 0.000 description 6
- WJJMNDUMQPNECX-UHFFFAOYSA-N dipicolinic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=N1 WJJMNDUMQPNECX-UHFFFAOYSA-N 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000000872 buffer Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 108010013639 Peptidoglycan Proteins 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 241000193830 Bacillus <bacterium> Species 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 3
- 238000007792 addition Methods 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 description 3
- 239000004289 sodium hydrogen sulphite Substances 0.000 description 3
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 3
- 241000194103 Bacillus pumilus Species 0.000 description 2
- 241000193470 Clostridium sporogenes Species 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 102000011782 Keratins Human genes 0.000 description 2
- 108010076876 Keratins Proteins 0.000 description 2
- 239000001888 Peptone Substances 0.000 description 2
- 108010080698 Peptones Proteins 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 210000004666 bacterial spore Anatomy 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 230000002147 killing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000019319 peptone Nutrition 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 241000353754 Bacillus subtilis subsp. niger Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000193449 Clostridium tetani Species 0.000 description 1
- ZNZYKNKBJPZETN-WELNAUFTSA-N Dialdehyde 11678 Chemical class N1C2=CC=CC=C2C2=C1[C@H](C[C@H](/C(=C/O)C(=O)OC)[C@@H](C=C)C=O)NCC2 ZNZYKNKBJPZETN-WELNAUFTSA-N 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 241000654838 Exosporium Species 0.000 description 1
- MSFSPUZXLOGKHJ-UHFFFAOYSA-N Muraminsaeure Natural products OC(=O)C(C)OC1C(N)C(O)OC(CO)C1O MSFSPUZXLOGKHJ-UHFFFAOYSA-N 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- 241000405964 Scomberomorus concolor Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- CLBRCZAHAHECKY-UHFFFAOYSA-N [Co].[Pt] Chemical compound [Co].[Pt] CLBRCZAHAHECKY-UHFFFAOYSA-N 0.000 description 1
- PYPDMIQMPWEFHX-UHFFFAOYSA-N [Pb].[Co] Chemical compound [Pb].[Co] PYPDMIQMPWEFHX-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000002168 alkylating agent Substances 0.000 description 1
- 229940100198 alkylating agent Drugs 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- VEZXCJBBBCKRPI-UHFFFAOYSA-N beta-propiolactone Chemical compound O=C1CCO1 VEZXCJBBBCKRPI-UHFFFAOYSA-N 0.000 description 1
- GEHJBWKLJVFKPS-UHFFFAOYSA-N bromochloroacetic acid Chemical compound OC(=O)C(Cl)Br GEHJBWKLJVFKPS-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- NFCRBQADEGXVDL-UHFFFAOYSA-M cetylpyridinium chloride monohydrate Chemical compound O.[Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 NFCRBQADEGXVDL-UHFFFAOYSA-M 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000006916 nutrient agar Substances 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 210000001938 protoplast Anatomy 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000013207 serial dilution Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- 239000003206 sterilizing agent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical compound [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000003253 viricidal effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/025—Ultrasonics
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2072—Aldehydes-ketones
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/40—Specific cleaning or washing processes
- C11D2111/46—Specific cleaning or washing processes applying energy, e.g. irradiation
Definitions
- ABSTRACT A method for disinfecting or sterilizing medical, surgical, dental instruments or other objects in liquid phase with improved sporicidal compositions.
- the method is based upon the synergistic effects observed when combining nonionic and anionic surfactants with aqueous or alcoholic glutaraldehyde solutions.
- the method can be used also with ultrasonic irradiation over a wide frequency range (10 to 850 kHz). Two types of particularly effective synergistic sporicidal compositions are also described.
- This invention relates to a method for disinfecting or sterilizing objects in liquid phase with improved chemosterilizer compositions.
- the method object of our invention is based upon the synergistic sporicidal effects observed when using relatively moderate temperatures combined or not combined with ultrasonic irradiation in specially formulated sporicidal compositions.
- the latter are based upon active combinations of glutaraldehyde with nonionic surfactants such as ethoxylates'or isomeric linear alcohols (C to C or anionic alkyl aryl sulfonates.
- the method object of the present invention enables reducing from hours to minutes the time requirements for surface disinfection or sterilization of heat sensitive materials.
- Formaldehyde isone of the oldest chemosterilizers employed for the destruction of spores, and, although 1 percent to 2 percent solutions have been used, a relatively long period of time (up to hours) is required to destroy Bacillus subtilis var. niger spores. A somewhat shorter time is needed if one uses higher concentrations of formaldehyde (around 8 percent) in isopropyl alcohol.
- This solution, called Formalin has several drawbacks. The irritating fumes of formaldehyde limit its usefulness, and its toxicity for tissue requires that disinfected materials be thoroughly rinsed with sterile water before use.
- Alkalanized glutaraldehyde solutions known commercially under the trade name CIDEX are the only widely used for practical applications today. They consist of a 2 percent aqueous glutaraldehyde solution buffered by suitable alkalinating agents (generally 0.3 percent sodium bicarbonate) to pH of 7.5 to 8.5. In the acid state at room temperature the glutaraldehyde solution is stable for long periods of time when stored in a closed container. However, when rendered alkaline, the glutaraldehyde gradually undergoes polymerization and loses its activity. Above pH 9 the polymerization proceeds very rapidly. In the 7.5 to 8.5 pH range polymerization is slower, but it is acknowledged by the manufacturer himself that sporicidal activity disappears after 2 weeks.
- suitable alkalinating agents generally 0.3 percent sodium bicarbonate
- Bacterial spores are much more resistant to adverse effects of heat, radiation and chemicals than their corresponding vegetative cells. The resistance of spores differs within the microbial population and species variation is common.
- Bacillus subtilis Bacillus stea'rothermopilus, Bacillus pumilus, Clostridium sporogenes and Clostridium tetani.
- a bacterial spore is typically about one micro diameter and consists essentially of a small cell, often called the core or spore protoplast, surrounded by a number of specialized layers.
- the principal layers are the thick cortex and the multilayered coats and, around spores of certain species, a further loose and thin layer called exosporium.
- alkylating agents such as ethylene oxide, B propiolactone, formaldehyde, glutaraldehyde as well as other aldehydes attack the sulfhydryl (SH), hydroxyl (OH), amino (NH and carboxy groups present in spore cell proteins.
- alkylating agents such as ethylene oxide, B propiolactone, formaldehyde, glutaraldehyde as well as other aldehydes attack the sulfhydryl (SH), hydroxyl (OH), amino (NH and carboxy groups present in spore cell proteins.
- T. J. Munton and A. D. Russell J. Appl. Bact., 1970
- the chemical sites for glutaraldehyde action could involve NH groups, including cross linking reactions between these groups (D. Hopwood, Histochemie, 1968). According to these authors, however, the suggested mechanism does not exclude sites of action with other chemical groups.
- the nonionic linear alcohol ethoxylates decrease the surface tension and increase the wettability at the spore/liquid interface in such a manner that they promote a faster absorbtion rate of glutaraldehyde molecules.
- anionic alkyl aryl sulfonates mixed with nonionic polyoxethylene alcohol ethers.
- sporicidal compositions object of the present invention in combination with ultrasonic irradiation extremely high killing rates are observed.
- murein or peptidoglycan
- Murein is present, in lesser amounts, in the walls of all bacteria. It is a large, cross-linked, net-like molecule exhibiting several unusual features.
- This polymer is acidic, and in spores may exist as a layer tightly contracted by some positively charged molecules.
- contractile pressure exerted by this structure may squeeze the central core sufficiently to maintain it in a state so dry as to confer heat resistance.
- Ultrasonic irradiation is one of the most efficient techniques (KY Sergeeva, Sov. Phys. Acoust., March 1966) to shake up polymer lattices and produce a fast depolymerization.
- This technique is said to be quite efficient over a wide frequency range both at low (G. Schmid, et al., Kolloid L, 1951) and high frequency (M. A. K. Mostafa, J. Polym. Sci. 1958).
- murein depolymerization or a partial destruction of the tight cross-linked lattice would enable the aldehyde groups to penetrate and combine faster with the active spore sites.
- Nonionic and anionic surfactants will indeed accelerate the penetration through the loosened polymer lattice.
- High intensity ultrasonic energy could also play an important role through other secondary but important mechanisms.
- the proteinaceous outer coats of spores contain a disulphide-rich protein with some properties close to those of keratins. Since keratin-like proteins are typically strong, inert towards chemical reagents and resistant to enzymes they constitute an ideal protective barrier for spores. High intensity ultrasonics, however, could physically degrade keratin (J. H. Bradbury, Nature, 1960) and thus promote a faster penetration of active glutaraldehyde molecules.
- spores Two more components characteristic of spores are high levels of calcium (often 2 percent of the spores dry weight) and dipicolinic acid (DPA) which may account for over 10 percent of a spores dry weight. Under acoustic turbulence ion exchange (Ca depletion) can take place while the heterocyclic DPA molecule could also be broken (I. E. Elpiner and A. V. Sokolskaya, Sov. Phys. Acoust. March 1963). In short, ultrasonic energy could either accelerate the physical diffusion of molecules or active radicals to reaction sites inside the spores, produce chemical bond breakages of critical spore components (including site modification) or both.
- DPA dipicolinic acid
- a novel aqueous bactericidal, virucidal and sporicidal composition of the present invention is prepared with 2 percent glutaraldehyde (Union Carbide grade) and 0.2 percent of a nonionic surface active agent which is a mixture of ethoxylates of isomeric linear alcohols.
- the linear alkyl hydrophobic portion of the surfactant being a mixture of C to C linear chains.
- the hydrophylic portion being a polyoxyethylene chain (9 to 13 oxyethylene groups) randomly attached to the linear aliphatic chain through an ether linkage as shown in the following formula:
- the nonionic surfactant used in the formulation object of the present invention had the following characteristics: Molecular weight 728, Cloud point (1 percent aqueous solution) 90C, Pour point 17C, 100 percent solubility in water at 25C, Apparent specific gravity 20/20C; 1.023, density 8.49 lb/gal at 30C, viscosity 48 CKS at 40C, flashpoint 460F. (ASTM method D).
- the anionic surfactant blend with nonionic polyoxethylene alcohol ethers used in the second formulation object of the present invention had the following characteristics: Specific gravity 1.02, density 8.5- lb/gal, clear liquid soluble in hot or cold water, pH comprised between 6' and 8, freezing point -10C.
- the spores against which the solutions have been tested were vacuum dried strains of Clostridium Sporogenes (ATCC 7955), Bacillus globigii, Bacillus pumilus, Bacillus stearolhermophilus and Bacillus Subtilis.
- Tests were conducted in specially designed ultrasonic stainless steel tanks (Wave Energy Systems series CTG 160) with a 2 gallon capacity.
- One gallon of spore suspension was used in each test.
- the acoustic output in liquid phase could vary from 10 to watts per liter of spore suspension.
- the experimental irradiation frequency was either 10 kHz or 27 k'Hz ,(i '1 kHz);
- At high frequency 850 kHz 20 watts/liter to 5 watts/cc
- the spore solution was contained in a 2 gal glass beaker which was placed in a water filled container fitted at the bottom with a submersible transducer (glazed cobalt lead zirconate titanate).
- the temperature was thermostatically controlled to i 1C of the recited temperature.
- spores of Bacillus subtilis were used in all the reported experiments.
- the preparation of clean spores was accomplished with the G. Sierra and A. Bowman technique (Journ. Appl. Microbiology, 17: 372-378, 1969).
- the spores were pasteurized (C, 15 min) and stored at 4C as concentrated suspensions in deionized water and used within one week.
- the standardization of the spore suspensions was carried out as described by G. Sierra (Can. Journ. Microbiology, 13: 489-501, 1967).
- Glutaraldehyde and glutaraldehyde/surfactant solutions were freshly prepared in deionized water for each experiment. Concentrated stock solution of the buffers or sodium bicarbonate were added'separately to pasteurized spore suspensions. The pH values reported here are those of a complete system after all additions and were read with a Beckman Zeromatic ll pH meter, the calibration of which was checked before each assay was run-Stirring was continuous, and the pH was read after allowing the electrode potential to stabilize.
- Nonionic surfactant concentration 0.2% Glutaraldehyde Minimum time in minutes T mp r re: 55C Concentration for 100% kill I 2 30 no ultrasound Dfluem PH fi g; F862 5 30 no ultrasound km 2 10 with ultrasound and nonionic surfactant (0.2%) Deionized water 6 l0 2 20 no ultrasound but with Deionized water 8 (with buffer) l0 nonionic surfactant (0,2 7) Deionized water 10 (with buffer) l2 Water and isopropyl alcohol (667:) 6.5 10
- a method for disinfecting or sterilizing medical, Deionized water 25 H dental, surgical instruments or other ob ects in liquid Deionized water 5 10 phase at a temperature of at least 15 C comprising contacting said object with a sporicidal composition comprising from about 0.1 percent by weight to about percent by weight of glutaraldehyde and from about 0.01 percent by weight to about 1 percent by weight of a nonionic surface active agent which is a mixture of ethoxylates of isomeric linear alcohols having the following formula:
- n 9 to 13 and x is 9 to 13.
- a method of disinfecting or sterilizing a contaminated object in liquid phase at a temperature of at least 15C comprising contacting said object with an aqueous sporicidal solution comprising from about 0.1 percent by weight to about 5 percent by weight of glutaraldehyde and from about 0.01 percent by weight to about 1 percent by weight of a nonionic surface active agent which is a mixture of ethoxylates of isomeric linear alcohols having the following formula:
- n 9 to 13 and x is 9 to 13, while simultaneously subjecting said solution to sonic or ultrasonic fields having a frequency of from about 10 kHz to about 850 kHz and an acoustic energy density of about 1 watt per liter to about 5 watts per cubic centimeter inside the irradiated liquid phase.
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- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Emergency Medicine (AREA)
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7233008A FR2199470B1 (pt) | 1971-06-21 | 1972-09-18 | |
CH1363072A CH564947A5 (pt) | 1971-06-21 | 1972-09-18 | |
US361148A US3912450A (en) | 1971-06-21 | 1973-05-17 | Method for synergistic disinfection or sterilization |
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15523371A | 1971-06-21 | 1971-06-21 | |
FR7233008A FR2199470B1 (pt) | 1971-06-21 | 1972-09-18 | |
CH1363072A CH564947A5 (pt) | 1971-06-21 | 1972-09-18 | |
US361148A US3912450A (en) | 1971-06-21 | 1973-05-17 | Method for synergistic disinfection or sterilization |
US48621074A | 1974-07-05 | 1974-07-05 | |
US05/596,289 US3968250A (en) | 1971-06-21 | 1975-07-16 | Method and sporicidal compositions for synergistic disinfection or sterilization |
US05/596,372 US3968248A (en) | 1971-06-21 | 1975-07-16 | Method and sporicidal compositions for synergistic disinfection or sterilization |
Publications (1)
Publication Number | Publication Date |
---|---|
US3912450A true US3912450A (en) | 1975-10-14 |
Family
ID=27561148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US361148A Expired - Lifetime US3912450A (en) | 1971-06-21 | 1973-05-17 | Method for synergistic disinfection or sterilization |
Country Status (3)
Country | Link |
---|---|
US (1) | US3912450A (pt) |
CH (1) | CH564947A5 (pt) |
FR (1) | FR2199470B1 (pt) |
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AT360172B (de) * | 1978-12-22 | 1980-12-29 | Oesterr Studien Atomenergie | Verfahren zur sterilisation von thermolumines- zenzdosimetern |
DE3032795C2 (de) | 1980-08-30 | 1986-10-09 | Schülke & Mayr GmbH, 2000 Norderstedt | Desinfektionsmittel auf der Basis in 2-Stellung substituierter Glutardialdehyde |
DE3611422A1 (de) * | 1986-04-05 | 1987-10-15 | Henkel Kgaa | Verfahren zur reinigung verschmutzter fester formteile |
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FR2622397A1 (en) * | 1987-11-03 | 1989-05-05 | Sogeval | Disinfectant composition |
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Cited By (93)
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US4093744A (en) * | 1971-06-28 | 1978-06-06 | West Laboratories, Inc. | Killing bacterial spores with glutaraldehyde sporicidal compositions |
US4048336A (en) * | 1974-04-22 | 1977-09-13 | West Chemical Products, Incorporated | Means for killing bacterial spores with glutaraldehyde sporicidal compositions |
US4208404A (en) * | 1974-07-29 | 1980-06-17 | Cowan Stanley M | Glutaraldehyde sterilizing compositions |
US4084747A (en) * | 1976-03-26 | 1978-04-18 | Howard Alliger | Germ killing composition and method |
USRE31779E (en) * | 1976-03-26 | 1984-12-25 | Alcide Corporation | Germ-killing composition and method |
US4103001A (en) * | 1976-08-30 | 1978-07-25 | Schattner Robert I | Buffered phenol-glutaraldehyde sterilizing compositions |
US4211744A (en) * | 1978-05-24 | 1980-07-08 | Biophysics Research & Consulting Corporation | Process for ultrasonic pasteurization |
US4294797A (en) * | 1979-04-24 | 1981-10-13 | Kaltenbach & Voight Gmbh & Co. | Servicing composition for spraying on medical instruments |
US4436754A (en) | 1980-08-14 | 1984-03-13 | Surgikos, Inc. | Disinfecting and sterilizing composition |
US4308229A (en) * | 1980-09-04 | 1981-12-29 | Voit J Kenneth | Sterilization apparatus and method |
US4444785A (en) * | 1980-11-21 | 1984-04-24 | Bausch & Lomb Incorporated | Contact lens disinfecting and preserving solution |
US4381314A (en) * | 1980-11-21 | 1983-04-26 | Bausch & Lomb Incorporated | Contact lens disinfecting and preserving solution |
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US4448750A (en) * | 1981-06-05 | 1984-05-15 | Fuesting Michael L | Sterilization method |
US4592892A (en) * | 1981-11-12 | 1986-06-03 | Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo | Aqueous sterilizing agent for foods or food processing machines and utensils |
US4424188A (en) | 1981-12-31 | 1984-01-03 | International Paper Company | Sterilization of packaging material |
WO1984001894A1 (en) * | 1982-11-12 | 1984-05-24 | American Hospital Supply Corp | Chemical sterilization of implantable biological tissue |
JPS60500014A (ja) * | 1982-11-12 | 1985-01-10 | バツクスター トラベノル ラボラトリーズ インコーポレーテツド | 移殖できる生物学的組織の化学滅菌 |
US4607652A (en) * | 1984-08-29 | 1986-08-26 | Yung Simon K C | Contact lens cleaning apparatus |
US4697605A (en) * | 1984-08-29 | 1987-10-06 | Smc Metal Tech Co., Ltd. | Contact lens cleaning apparatus |
US4690772A (en) * | 1985-06-03 | 1987-09-01 | National Medical Care | Sterilant compositions |
US4978530A (en) * | 1986-05-02 | 1990-12-18 | Health Care Products, Inc. | Sanitized, disinfected and sporicidal articles, and processes for sanitizing, disinfecting and rendering objects sporicidal |
EP0255875A1 (en) * | 1986-08-08 | 1988-02-17 | Germo S.P.A. | Glutaraldehyde-based sterilising composition of antibacterial and antimycotic activity in an aqueous vehicle |
US5250573A (en) * | 1986-08-08 | 1993-10-05 | Germo S.P.A. | Glutaraldehyde-based sterilising composition of antibacterial and antimycotic activity, in an aqueous vehicle |
US4971999A (en) * | 1987-05-21 | 1990-11-20 | Johnson & Johnson Medical, Inc. | Odorless aromatic dialdehyde disinfecting and sterilizing composition and method of using the same |
US4847304A (en) * | 1987-05-21 | 1989-07-11 | Surgikos, Inc. | Disinfecting and sterilizing composition |
US4851449A (en) * | 1987-05-21 | 1989-07-25 | Surgikos, Inc. | Odorless aromatic dialdehyde disinfecting and sterilizing composition |
US5190724A (en) * | 1988-09-19 | 1993-03-02 | Henkel Kommanditgesellschaft Auf Aktien | Process for disinfecting medical molding materials |
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US5447684A (en) * | 1988-10-03 | 1995-09-05 | Williams; Robert M. | Sterilization devices, sporicidal compositions, sterilization methods, and devices for reducing surface tension |
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US5008023A (en) * | 1990-08-13 | 1991-04-16 | Betz Laboratories, Inc. | Biocidal compositions and use thereof containing a synergistic mixture of glutaraldehyde and 2-(decylthio) enthanamine |
WO1992010935A1 (en) * | 1990-12-20 | 1992-07-09 | Glaxo S.P.A. | Sterilising composition |
WO1994013138A1 (en) * | 1992-12-15 | 1994-06-23 | Williams Robert M | Sterilization devices, sporidical compositions, sterilization methods, and devices for reducing surface tension |
US5783146A (en) * | 1992-12-15 | 1998-07-21 | Williams, Jr.; Robert M. | Sporicidal compositions, sterlization devices and methods for rapid cleaning, disinfection, and sterilization |
US5674829A (en) * | 1993-01-29 | 1997-10-07 | Antoinetta P. Martin | Stable aqueous glutaraldehyde solutions containing sodium acetate and a nonionic detergent |
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US5401625A (en) * | 1993-06-24 | 1995-03-28 | E. K. Industries, Inc. | Histological composition for light microscopy |
US5422068A (en) * | 1994-01-05 | 1995-06-06 | Shalaby; Shalaby W. | Radiochemical sterilization |
US5736100A (en) * | 1994-09-20 | 1998-04-07 | Hitachi, Ltd. | Chemical analyzer non-invasive stirrer |
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Also Published As
Publication number | Publication date |
---|---|
FR2199470A1 (pt) | 1974-04-12 |
FR2199470B1 (pt) | 1977-12-30 |
CH564947A5 (pt) | 1975-08-15 |
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