JP6739355B2 - 汚染菌の増殖を避けるための微粒子を組み込んだ材料の使用 - Google Patents
汚染菌の増殖を避けるための微粒子を組み込んだ材料の使用 Download PDFInfo
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- JP6739355B2 JP6739355B2 JP2016574951A JP2016574951A JP6739355B2 JP 6739355 B2 JP6739355 B2 JP 6739355B2 JP 2016574951 A JP2016574951 A JP 2016574951A JP 2016574951 A JP2016574951 A JP 2016574951A JP 6739355 B2 JP6739355 B2 JP 6739355B2
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Classifications
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- 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
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/23—Solid substances, e.g. granules, powders, blocks, tablets
- A61L2/238—Metals or alloys, e.g. oligodynamic metals
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- 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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
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Description
− (1)それから粒子が形成されることになる且つ溶液の液滴の噴霧液を得るために使用される、1種又は複数の無機材料への前駆体を含有する液体溶液を、溶媒中の所与の分子濃度にて噴霧化させる工程
− (2)該噴霧液を、溶媒の蒸発及び粒子の形成を確実にするのに十分な温度まで加熱する(乾燥すると称される)工程
− (3)該粒子を、前駆体を分解して無機材料を形成することを確実にするのに十分な温度まで加熱する(熱分解と称される)工程
− (4)任意選択で、該粒子を高密度化する工程
− (4a)任意選択で、該粒子をクエンチする工程、及び
− (5)こうして形成された粒子を回収する工程。
本発明に従って製造した材料の抗細菌効果の評価
各種の細菌(大腸菌、黄色ブドウ球菌、緑膿菌(Pseudomonas aeruginosa)、リステリア・モノサイトゲネス(Listeria monocytogenes)、サルモネラ・エンテリカ(Salmonella enterica)、表皮ブドウ球菌(Staphylococcus epidermidis)、肺炎レンサ球菌(Streptococcus pneumoniae)及びインフルエンザ菌(Haemophilus influenza))の増殖を、本発明に従って製造した材料の試料中で研究し、且つ等価の、粒子を含有しない試料について観察したものと比較した。該試験は、JIS規格Z 2801:2010年に従って行った。該試験は、3通りで行い、以下に示す結果は、3種の試料についての平均の結果に相当する。
本発明に従って製造した材料の、必要とされる保存剤の量についての影響の研究
ある量の栄養液(Nutrient Broth)を、本発明に従って製造した材料の試料上に、且つ実施例1で定義した対照試料上に、堆積させる。Nutrient Broth溶液中の保存剤(メチルパラベン)の投与量は、多様とし、大腸菌の増殖の後続速度を、試験6時間後と24時間後とで、種々の条件下で比較した。溶液中の保存剤の濃度は、質量%で表す。
逆行性汚染の研究
この実施例は、14日間にわたる模擬的使用、及びヒト起源の潜在的な汚染菌(黄色ブドウ球菌、緑膿菌及び枯草菌(Bacillus subtilis))の定期的な適用の後の、点眼薬等の製品の瓶の処理能力の評価に関する。
以下の株を使用する:黄色ブドウ球菌CIP 4.83、緑膿菌CIP 82118及び枯草菌(芽胞形態にある)CIP 52.62。該株の保存及び維持を、EN規格12353(2006年9月)に従って実施する。株細菌懸濁液を、欧州薬局方(第7版、2012年、2.6.12章)に従って作製する。ワーキング懸濁液を、株溶液から、9g/lのトリプトン−塩(1.102CFU/ml〜3.102CFU/mlの理論的調整に相当する)を含有する無菌懸濁液液体中で連続6回の10倍希釈液を調製することによって創製する。懸濁液を、プレーティング法を使用してカウントする。
− 上に記載した3種の微生物のワーキング懸濁液を調製する
− 体積の等しい3種の懸濁液を含有する10mlの即時混合物を調製する
− 無菌の綿棒を、この懸濁液に大量に浸す
− 正規の方法で、キャップを回して外し、製品の滴を取り除く
− 浸した綿棒を製品分配領域へ適用することによって、使用の模擬実験を行う
且つ、
− キャップを回して戻し、バイアルを、次の模擬実験まで室温にて貯蔵する。
陰性の対照:
培養液9mlを含有しているポリエチレンバイアルを、模擬実験から14日後の無菌度を確認するために、試験において使用するバイアルと同一の環境条件中に置いた。
陽性の対照:
培養液9mlを含有しているポリエチレンバイアルに、3種の細菌を播種し(最終濃度、約3CFU/mlまで)、微生物の生存能力が模擬実験の14日間維持されていることを確認するために、試験で使用するのと同一の周囲条件下に置いた。
以下の表に提示している結果は、培養液100マイクロリットル当たりのCFUの単位で表している。
以下のTable 2(表2)は、トリプティカーゼ大豆寒天培地の培養基上で7日及び14日にてカウントした結果を示す。本発明に従って製造した材料のバイアルは、「PE+ZnO」バイアルであり、他のバイアル(「PE」バイアル)は、対照のポリエチレンバイアルである。
以下のTable4(表4)で、本発明に従って製造したバイアルにとっての対照試料の、無菌度試験の結果をまとめており、その試料は、バイアルの内側から直接取った。
本発明に従って製造した材料の、バイアル及び末端部のための使用は、試験条件下で、培養液の汚染リスク、即ちグラム陽性の細菌(黄色ブドウ球菌)、グラム陰性の細菌(緑膿菌)及び芽胞形態のグラム陰性の細菌(枯草菌)に伴う末端部の人工的な汚染リスクが制限されることを可能にする。
抗菌活性の研究
上の実施例中の全ての材料(無機及び有機の双方の材料、例えばプラスチック、ゴム、ニス、塗料、繊維、シリコーン、グルー、コーティング及びエラストマー)を、ISO規格22196に従って試験し、その結果は、大腸菌試料における抗細菌活性1CFU/cm2から7CFU/cm2の間に相当する。質量(マトリックス及び粒子を含む総質量)による粒子の濃度は、0.2質量%〜2質量%であり、粒子の比表面積は、平均粒子径0.50μmでは15m2/g〜30m2/gである。
A.試験されることになる微生物の既知の濃度での播種であり、試料表面上に均質に堆積される
B.生存可能な微生物の濃度の判定であり、播種直後に且つ培養物のインキュベーションから24時間後に、寒天培地の培養基に基づく方法を使用して行われる
C.これらのカウントの比較は、分析される表面上での抗菌活性値の判定を可能にする。
・接触温度:36±1℃
・相対湿度:80%
・接触時間:24時間
MgO粒子について:
低密度RIBLENEのポリエチレンマトリックスを伴うMgO(ISO22196 E. coliに従った試験)
T0対照:1.38×105CFU
T0試料:1.44×105CFU
T24h対照:2.83×107CFU
T24h試料:60CFU
ZnO及びMgO粒子について(量:それぞれ0.5質量%及び0.2質量%):
Purell PE 1840 Hの低密度ポリエチレンマトリックスを伴うZnO/MgO(質量比2.5)(ISO22196 E. coliに従って実施した試験)
T0対照:1.67×105CFU
T0試料:1.72×105CFU
T24h対照:2.56×107CFU
T24h試料:196CFU
Claims (21)
- マトリックスと、少なくとも1種の抗菌剤を含む又はそれから成る1組の微粒子とを含む固体材料の、前記材料の汚染及び/若しくは前記材料と接触している組成物の汚染を少なくとも所与の時間の間、防止、制限及び/若しくは除去するための、並びに/又は前記材料の表面上でのバイオフィルム形成を防止、抑制及び/若しくは遅延するための使用であって、前記抗菌剤が、少なくとも1つの正荷電金属イオンの酸化物であり、前記抗菌剤が、前記材料の外へ移行せず、前記微粒子が0.75以上の真球度係数を有する、使用。
- 前記微粒子の濃度が、0.1%〜10%である、請求項1に記載の使用。
- 前記微粒子の濃度が、マトリックス及び粒子の質量に対して、0.5質量%〜3質量%である、請求項2に記載の使用。
- 前記微粒子の平均径が、0.1〜5マイクロメートルの間である、請求項1から3のいずれか一項に記載の使用。
- 前記微粒子の平均径が、0.4〜5マイクロメートルの間である、請求項4に記載の使用。
- 前記微粒子の比表面積が、15m2/g以上である、請求項1から5のいずれか一項に記載の使用。
- 前記微粒子が、酸化亜鉛(ZnO)を含む若しくは酸化亜鉛で構成されている、又は酸化マグネシウム(MgO)を含む若しくは酸化マグネシウムで構成されている、又は酸化マグネシウムと酸化亜鉛との混合物である、請求項1から6のいずれか一項に記載の使用。
- 前記微粒子が、ZnO微粒子、ナトリウム又はアルミニウムでドープされたZnOの微粒子、及びZnOを含むメソ構造の微粒子から選択される、請求項7に記載の使用。
- 前記マトリックスが、ポリマーマトリックスである、請求項1から8のいずれか一項に記載の使用。
- 前記ポリマーマトリックスが、アクリロニトリルブタジエンスチレンコポリマー、酢酸セルロース、ポリスチレン、ポリアミド、ポリ(ブチレンテレフタレート)、ポリカーボネート、ポリエチレン、ポリ(エチレンテレフタレート)、ポリ(メタクリル酸メチル)、ポリホルムアルデヒド、ポリプロピレン、ポリ(酢酸ビニル)、ポリ(塩化ビニル)、ポリ(乳酸)(PLA)、ポリカプロラクトン、ポリヒドロキシアルカノエート(PHA)、多糖類、及びスチレン−アクリロニトリルコポリマーから選択される熱可塑性マトリックスポリマーである、請求項9に記載の使用。
- 前記組成物が、哺乳動物に生理的に許容されている、請求項1から10のいずれか一項に記載の使用。
- 前記組成物が、食物組成物、栄養組成物、化粧用組成物、皮膚科組成物又は医薬組成物から選択される、請求項11に記載の使用。
- マトリックスと、少なくとも1種の抗菌剤を含む又はそれから成る微粒子とを含む固体材料の、少なくとも1種の微生物汚染源と接触しやすい物品の製造のための使用であって、前記材料が、請求項1から12のいずれか一項で定義されたものである、使用。
- マトリックスと、少なくとも1種の抗菌剤を含む又はそれから成る複数の微粒子とを含む固体材料から成る物品であって、前記材料が、請求項1から12のいずれか一項で定義されたものである、物品。
- 前記物品が、少なくとも1種の微生物汚染源と接触していることがあり、前記抗菌剤が、前記材料又は前記物品の外へ移行しない、請求項14に記載の物品。
- 無菌環境、手術室、実験室、又は食品産業において使用される、請求項14又は15に記載の物品。
- 食物組成物、栄養組成物、化粧用組成物、皮膚科組成物又は医薬組成物用の、包装物、容器又は送出具の全体又は一部である、請求項14から16のいずれか一項に記載の物品。
- 瓶、ジャー、ポット、缶、樽、タンク、並びに食品、栄養製品、化粧料、皮膚科製品又は医薬製品を包装及び/又は貯蔵するために使用される種々の容器を密閉するための、ストッパ、シール、カプセル、リッド、プラグ及びタップから選択される、請求項14から17のいずれか一項に記載の物品。
- 瓶、フラスコ、ジャー、箱、缶、樽、タンク、並びに食品、栄養製品、化粧料、皮膚科製品又は医薬製品を包装及び/又は貯蔵するために使用される種々の容器の全体又は一部を形成する、請求項14から17のいずれか一項に記載の物品。
- 物品を作製する方法であって、マトリックスと、少なくとも1種の抗菌剤を含む又はそれから成る1組の微粒子とを含む固体材料を形成する工程を含み、前記固体材料が、請求項1から12のいずれか一項で定義されたものである、方法。
- 前記マトリックス中に前記微粒子を分散させる予備工程を更に含む、請求項20に記載の方法。
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FR1455871A FR3022785B1 (fr) | 2014-06-25 | 2014-06-25 | Utilisation de materiaux incorporant des microparticules pour eviter la proliferation de contaminants. |
PCT/FR2015/051730 WO2015197992A1 (fr) | 2014-06-25 | 2015-06-25 | Utilisation de matériaux incorporant des microparticules pour éviter la prolifération de contaminants |
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WO2022129348A1 (fr) | 2020-12-16 | 2022-06-23 | Elkem Silicones France Sas | Composition silicone biocide applicable sur des surfaces |
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ES2978994T3 (es) | 2024-09-23 |
AU2015279006B2 (en) | 2018-11-29 |
ZA201700399B (en) | 2018-08-29 |
US20230331953A1 (en) | 2023-10-19 |
FR3022785A1 (fr) | 2016-01-01 |
NZ728557A (en) | 2023-09-29 |
FR3022785B1 (fr) | 2017-10-13 |
KR102415618B1 (ko) | 2022-06-30 |
WO2015197992A1 (fr) | 2015-12-30 |
EP3160520A1 (fr) | 2017-05-03 |
CA2951759C (fr) | 2023-06-20 |
US20170130027A1 (en) | 2017-05-11 |
CA2951759A1 (fr) | 2015-12-30 |
EA036493B1 (ru) | 2020-11-17 |
PT3160520T (pt) | 2024-06-03 |
AU2015279006A1 (en) | 2017-02-16 |
CN107073150A (zh) | 2017-08-18 |
TN2016000548A1 (fr) | 2018-04-04 |
EP3160520B1 (fr) | 2024-02-28 |
CN116570746A (zh) | 2023-08-11 |
UA122563C2 (uk) | 2020-12-10 |
US11725094B2 (en) | 2023-08-15 |
KR20170023083A (ko) | 2017-03-02 |
IL249582A0 (en) | 2017-02-28 |
IL249582B (en) | 2021-04-29 |
EA201692372A1 (ru) | 2017-05-31 |
JP2017529112A (ja) | 2017-10-05 |
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