DE10013248A1 - Verfahren zur Herstellung von antimikrobiellen Kunststoffkörpern mit verbessertem Langzeitverhalten - Google Patents
Verfahren zur Herstellung von antimikrobiellen Kunststoffkörpern mit verbessertem LangzeitverhaltenInfo
- Publication number
- DE10013248A1 DE10013248A1 DE10013248A DE10013248A DE10013248A1 DE 10013248 A1 DE10013248 A1 DE 10013248A1 DE 10013248 A DE10013248 A DE 10013248A DE 10013248 A DE10013248 A DE 10013248A DE 10013248 A1 DE10013248 A1 DE 10013248A1
- Authority
- DE
- Germany
- Prior art keywords
- silver
- colloidal
- treated
- metal
- inorganic particles
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
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- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Chemical compound [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 claims description 4
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- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
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- 229910052684 Cerium Inorganic materials 0.000 description 1
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004568 DNA-binding Effects 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
- C08J3/2053—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the additives only being premixed with a liquid phase
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- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/04—Macromolecular materials
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- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/12—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
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- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
- A61L29/16—Biologically active materials, e.g. therapeutic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J7/06—Coating with compositions not containing macromolecular substances
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- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
- A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
- A61L2300/104—Silver, e.g. silver sulfadiazine
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- A—HUMAN NECESSITIES
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- 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
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
Landscapes
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Abstract
Description
- a) In 500 ml aqua dest. werden bei 50°C nacheinander 0,666 g Gelatine und anschließend
6,66 g AgNO3 gelöst. Man versetzt mit ca. 8,5 ml 25%-iger wässriger NH3-Lösung bis
zur schwach alkalischen Reaktion.
Hierzu wird langsam bei 50°C unter kräftigem Rühren eine Lösung aus 3,53 g wasserfreier α-D-Glucose in 150 ml aqua dest. getropft und das entstandene Silberkolloid, wenn ca. die Hälfte der Glucoselösung zugetropft ist, mit 333 g BaSO4 versetzt. Nach beendetem Zutropfen wird die Suspension noch ca. 2 h bei 50°C weiterturbiniert und anschließend durch Eindampfen und Trocknen bei 70°C von den flüchtigen Anteilen befreit. Die Zerkleinerung des Materials erfolgt in einem Handmörser. - b) Vorgehensweise analog Beispiel 3a), jedoch unter Verwendung von 6,66 g pyrogener Kieselsäure (Degussa, Aerosil 200) anstelle von Gelatine. Die Teilchengröße des kolloidalen Silbers lag im Bereich von 10 bis 50 nm, bestimmt mittels einer REM- Aufnahme.
Prüfkörper 1: Stück aus einem PU-Katheter der Firma Arrow (ES 04701)
Prüfkörper 2: gemäß Beispiel 2 der vorliegenden Erfindung
Prüfkörper 3: gemäß Beispiel 3 der vorliegenden Erfindung.
Testreihe 1: anfängliche Konzentration von Staphylococcus epidermis 5 × 107 CFU/ml
Testreihe 2: anfängliche Konzentration von Staphylococcus epidermis 108 CFU/ml
Testreihe 3: wie Testreihe 1, jedoch nach einer 5-ständigen Vorinkubation in physiologischer Pufferlösung bei 37°C gemessen
Testreihe 4: wie Testreihe 1, wobei die Kunststoffkörper mit steril filtriertem natürlichen Harn bei 37°C 4 Stunden lang vorbehandelt wurden.
- 1. Polyurethankatheter 20% BaSO4 + 0,8% Ag 1,0 cm Länge (Beispiel 4)
- 2. Silikonkatheter 25% BaSO4 + 1% Ag 1 cm Länge, 1,3 mm Dicke und 2 mm Breite (Beispiel 4)
- 3. Silikonkatheter 25% BaSO4 + 0,33% Ag + 0,33% SiO2 (Beispiel 3b) Wandstücke von Silikon 1 cm Länge, 1 mm Dicke und 2 mm Breite
- 4. Kontrolle: ArgenTec 1 Lumenkatheter (Sicuris) Extr. 1/99 20% BaSO4 + 0,9-1% Ag
E. coli (Ref.: Infection Suppl. 6/99)
- - Proben werden 8 Stunden lang in einer Suspension NaCl 0,45% mit 2,5% Glukose mit 5 × 107 Keimen bei Zimmertemperatur inkubiert
- - Anschließend wird die Keimsuspension abzentrifugiert
- - 2 × Waschen (2 min Resuspension in physiologischer Kochsalzlösung unter Schwenken)
- - Transferierung der Proben in sterile Kochsalzlösung in einer Petrischale
- - Stündliche, nach 6 Stunden 2-stündliche Entnahme einer Probe und Transferierung nach leichtem Schwenken in physiologischer Kochsalzlösung in Trypcase Soja Medium
- - Inkubation für 24-36 Stunden
- - Beurteilung auf Sterilität der Probe (Trübung = Endpunktmessung).
Claims (15)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10013248A DE10013248A1 (de) | 2000-03-17 | 2000-03-17 | Verfahren zur Herstellung von antimikrobiellen Kunststoffkörpern mit verbessertem Langzeitverhalten |
PCT/DE2000/002493 WO2001009229A1 (de) | 1999-07-30 | 2000-07-28 | Verfahren zur herstellung von antimikrobiellen kunststoffkörpern mit verbessertem langzeitverhalten |
DE50007020T DE50007020D1 (de) | 1999-07-30 | 2000-07-28 | Verfahren zur herstellung von antimikrobiellen kunststoffkörpern mit verbessertem langzeitverhalten |
EP00954384.4A EP1210386B2 (de) | 1999-07-30 | 2000-07-28 | Verfahren zur herstellung von antimikrobiellen kunststoffkörpern mit verbessertem langzeitverhalten |
AU66859/00A AU6685900A (en) | 1999-07-30 | 2000-07-28 | Method of producing antimicrobial synthetic bodies with improved long-term behavior |
JP2001514032A JP2003506511A (ja) | 1999-07-30 | 2000-07-28 | 改良された長期効能を有する抗菌性プラスチック体の製造法 |
EP04013082A EP1457516A1 (de) | 1999-07-30 | 2000-07-28 | Verfahren zur Herstellung von antimikrobiellen Kunststoffkörpern mit verbessertem Langzeitverhalten |
AT00954384T ATE270688T1 (de) | 1999-07-30 | 2000-07-28 | Verfahren zur herstellung von antimikrobiellen kunststoffkörpern mit verbessertem langzeitverhalten |
CA002380490A CA2380490A1 (en) | 1999-07-30 | 2000-07-28 | Method of producing antimicrobial synthetic bodies with improved long-term behavior |
JP2011170935A JP2011252162A (ja) | 1999-07-30 | 2011-08-04 | 改良された長期効能を有する抗菌性プラスチック体の製造法 |
JP2014005190A JP2014080624A (ja) | 1999-07-30 | 2014-01-15 | 改良された長期効能を有する抗菌性プラスチック体の製造法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10013248A DE10013248A1 (de) | 2000-03-17 | 2000-03-17 | Verfahren zur Herstellung von antimikrobiellen Kunststoffkörpern mit verbessertem Langzeitverhalten |
Publications (1)
Publication Number | Publication Date |
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DE10013248A1 true DE10013248A1 (de) | 2001-09-20 |
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ID=7635262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE10013248A Ceased DE10013248A1 (de) | 1999-07-30 | 2000-03-17 | Verfahren zur Herstellung von antimikrobiellen Kunststoffkörpern mit verbessertem Langzeitverhalten |
Country Status (1)
Country | Link |
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DE (1) | DE10013248A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8075823B2 (en) | 1999-07-30 | 2011-12-13 | Guggenbichler J Peter | Process for preparing antimicrobial plastic bodies having improved long-time performance |
DE102017121439A1 (de) | 2017-09-15 | 2019-03-21 | Hecosol Gmbh | Anti-mikrobielle Beschichtung |
EP3907261A1 (de) | 2020-05-06 | 2021-11-10 | Hecosol GmbH | Verwendung von antimikrobieller beschichtung |
-
2000
- 2000-03-17 DE DE10013248A patent/DE10013248A1/de not_active Ceased
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8075823B2 (en) | 1999-07-30 | 2011-12-13 | Guggenbichler J Peter | Process for preparing antimicrobial plastic bodies having improved long-time performance |
DE102017121439A1 (de) | 2017-09-15 | 2019-03-21 | Hecosol Gmbh | Anti-mikrobielle Beschichtung |
WO2019053037A1 (de) | 2017-09-15 | 2019-03-21 | Hecosol Gmbh | Anti-mikrobielle beschichtung |
EP3907261A1 (de) | 2020-05-06 | 2021-11-10 | Hecosol GmbH | Verwendung von antimikrobieller beschichtung |
WO2021224150A1 (en) | 2020-05-06 | 2021-11-11 | Hecosol Gmbh | Use of antimicrobial coating |
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