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Combination of lactic acid with 1,2-hexanediol - a new possibility to stabilise rinse-off formulations / Katja von Nessen in SOFW JOURNAL, Vol. 146, N° 4 (04/2020)
[article]
Titre : Combination of lactic acid with 1,2-hexanediol - a new possibility to stabilise rinse-off formulations Type de document : texte imprimé Auteurs : Katja von Nessen, Auteur ; Felix Weiher, Auteur ; martin Neubauer, Auteur ; Thomas Kerl, Auteur ; Judith Preuschen, Auteur Année de publication : 2020 Article en page(s) : p. 22-25 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : 1,2-hexanediol
Antimicrobiens
Cosmétiques -- Conservation
Dermo-cosmétologie
Formulation (Génie chimique)
Lactique, AcideL'acide lactique est un acide organique qui joue un rôle dans divers processus biochimiques. Un lactate est un sel de cet acide. Contrairement à ce que peut laisser penser son nom, l'acide lactique n'est pas présent uniquement dans le lait, mais également dans le vin, certains fruits et légumes, et dans les muscles.
L'acide lactique est un acide alpha hydroxylé, sa formule chimique est C3H6O3 et sa structure se reflète dans son nom systématique, l'acide 2-hydroxypropanoïque.
Laureth sulfate de sodium
Peau -- Soins et hygiène
Savon liquide
Stabilisants (chimie)
Tests d'efficacitéIndex. décimale : 668.5 Parfums et cosmétiques Résumé : In recent years the demand from consumers for natural preservation systems for personal care products has increased significantly.
Since many preservatives are not sufficiently effective against all microbes when used alone, more and more often a combination with preservation boosters such as 1,2-hexanediol is required. One well-established natural preservative is lactic acid, which is known to reduce bacteria in aqueous systems. In this study, preservation stress tests according to the European Pharmacopeia (Ph. Eur. or EP) were carried out for single ingredients and combinations of lactic acid with 1,2-hexanediol in an aqueous solution of sodium laureth sulfate (SLES) as a basic system. Sufficient preservation of the basic system could not be achieved with the individual substances alone. In contrast, in combination the two showed a synergistic effect and the test was passed. This synergistic effect of the combination of lactic acid and 1,2-hexanediol was verified in a shower gel formulation.Note de contenu : - INTRODUCTION : 1,2-hexanediol/WeylCare HexaPB from WeylChel performance products GmbH - L(+)-lactic acid from jungbunzlauer
- RESULTS : Analysis of antimicrobial preservation efficacy - Criteria of acceptance - Antimicrobial preservation efficacy tests for single substances - Antimicrobial preservation efficacy tests in a real formulation
- Table 1 : Criteria of acceptance for Ph. Eur. test
- Table 2 : Shower gel formulation with 2.9 % lactic acid and 1 % 1,2-hexanediol
- Fig. 1 : Aqueous system of 10% SLES without preservation (test result : failed)
- Fig. 2 : Aqueous system of 10% SLES plus 1 % 1,2-hexanediol (test result : failed)
- Fig. 3 : Aqueous system of 10% SLES plus 2.9 % lactic acid (test result : failed)
- Fig. 4 : Aqueous system of 10% SLES plus 2.9 % lactic acid and 1 % 1,2-hexanediol (test result: passed)
- Fig. 5 : Shower gel formulation without preservation (test result : failed)
- Fig. 6 : Shower gel formulation with 2.9 % lactic acid and 1 % 1,2-hexanediol (test result : passed)En ligne : https://drive.google.com/file/d/1NC0aUtQaaDsdWpYKEq2OxwFQtZ3f6yL8/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33930
in SOFW JOURNAL > Vol. 146, N° 4 (04/2020) . - p. 22-25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21648 - Périodique Bibliothèque principale Documentaires Disponible Combinatorial coating based on light-sensitive photocatalysts - biostatic, self-cleaning and UV protective textiles / Omid Etemad-Parishanzadeh in TECHNICAL TEXTILES, Vol. 65, N° 4 (10/2022)
[article]
Titre : Combinatorial coating based on light-sensitive photocatalysts - biostatic, self-cleaning and UV protective textiles Type de document : texte imprimé Auteurs : Omid Etemad-Parishanzadeh, Auteur ; Yanik Leven, Auteur ; Léonie Kamps, Auteur ; Tori Engels, Auteur ; Jochen S. Gutmann, Auteur ; Thomas Mayer-Gall, Auteur ; Torsten Textor, Auteur Année de publication : 2022 Article en page(s) : p. 229-231 Langues : Multilingue (mul) Catégories : Antimicrobiens
Catalyseurs métalliques
Equipement de protection individuelle
Oxyde de zinc
Photocatalyse
Polyéthylène téréphtalate
Protection contre le rayonnement ultraviolet
Revêtement auto-nettoyant
Textiles et tissus à usages médicaux
Textiles et tissus à usages techniques
Textiles et tissus synthétiques
Vêtements de protectionIndex. décimale : 677 Textiles Résumé : The requirements for textiles differ greatly depending on the area of application, whereby it often does not remain with only one required functionality. For example, in the field of functional clothing or protective clothing/PPE, it is necessary to protect the textile's wearers from UV radiation. At the same time, self-cleaning effects offer certain advantages in that field. In addition, an antimicrobial effect in functional clothing can reduce the formation of unpleasant odors, and in PPE — especially in the healthcare sector — can contribute to the interruption of the chain of infection. One way to achieve these 3 desired functions in just one finishing step is to immobilize titanium dioxide (Ti02). However,TiO2 is viewed critically for application in the textile sector due to a REACH listing. Another disadvantage is that it only takes effect under UV radiation and is therefore not suitable for indoor use. Alternatively, photocatalysts such as doped zinc oxides (ZnO) can be used, which also exhibit catalyticactivity through activation by visible light, which can lead to the killing of microorganisms and the degradation of organic soiling. Note de contenu : - Fig. 1 : Catalytic soil degradation tested on methylene blue dyed textiles
- Fig. 2 : UV protection effect of finished PET:CO fabrics
- Fig. 3 : SEM images of finished PET fabrics before (W0) and after 5 washing cycles (W5)
- Fig. 4 : Determination of the maximum tensile strength before and after long-term UV irradiation : PET fabric and CO fabricEn ligne : https://drive.google.com/file/d/18NBGInpP9QYcj5TzgjjGgH4Cn8UsKtPL/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38560
in TECHNICAL TEXTILES > Vol. 65, N° 4 (10/2022) . - p. 229-231[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23778 - Périodique Bibliothèque principale Documentaires Disponible Combinatorial materials research applied to the Combinatorial materials research applied to the development of new surface coatings XII: Novel, environmentally friendly antimicrobial coatings derived from biocide-functional acrylic polyols and isocyanates / Alex J. Kugel in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 1 (03/2009)
[article]
Titre : Combinatorial materials research applied to the Combinatorial materials research applied to the development of new surface coatings XII: Novel, environmentally friendly antimicrobial coatings derived from biocide-functional acrylic polyols and isocyanates Type de document : texte imprimé Auteurs : Alex J. Kugel, Auteur ; James A. Bahr, Auteur ; Dean C. Webster, Auteur ; Robert J. Pieper, Auteur ; Shane J. Stafslien, Auteur ; Michael J. Jepperson, Auteur ; Scott M. Ebert, Auteur ; Lyndsi J. Vander Wall, Auteur ; Justin W. Daniels, Auteur ; Laura E. Jarabek, Auteur ; Bret J. Chisholm, Auteur Année de publication : 2009 Article en page(s) : p. 107-121 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens
Revêtements
Staphylocoques
TriclosanLe triclosan est un composé organochloré, proche des chlorophénols, qui possède des propriétés antifongiques et antibactériennes à large spectre. Il est aussi appelé 5-chloro-2-(2,4-dichlorophénoxy)phénol.
UrethanesIndex. décimale : 667.9 Revêtements et enduits Résumé : Novel, environmentally friendly antimicrobial coatings containing tethered biocide moieties derived from the ubiquitous biocide, triclosan, were synthesized and characterized using a high-throughput workflow. Triclosan was first modified with an acrylate functionality and, subsequently, copolymerized with hydroxyethyl acrylate and butyl acrylate using conventional free radical polymerization to form an array of acrylic polyol terpolymers. The polyols were characterized using nuclear magnetic resonance spectroscopy, differential scanning calorimetry, and gel permeation chromatography. Arrays of urethane coatings were produced from the array of acrylic polyol terpolymers and, subsequently, characterized using parallel dynamic mechanical thermal analysis, surface energy measurements, and various biological assays. The results of the biological assays showed that the coatings were effective toward inhibiting Staphylococcus epidermidis biofilm retention without leaching triclosan or other toxic components from the coating. The level of antimicrobial activity was found to increase with the content of triclosan moieties incorporated into the coating matrix. These results indicate that triclosan moieties tethered to a polymer matrix can impart antimicrobial properties via a contact-active, nonleaching (i.e., environmentally friendly) mechanism. Since S. epidermidis is one of the primary microorganisms associated with infection and failure of implanted medical devices, such as prosthetic heart valves, urinary catheters, and a variety of orthopedic implants, these coatings may have good potential for commercialization in some of these applications. DOI : 10.1007/s11998-008-9124-6 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9124-6.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4879
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 1 (03/2009) . - p. 107-121[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011246 - Périodique Bibliothèque principale Documentaires Disponible 011271 - Périodique Bibliothèque principale Documentaires Disponible Combined 'spear and shield' : superhydrophilic antimicrobial and antifouling mesh membrane for efficient oil–water separation through facile and environmentally friendly strategy / Ming Lu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)
[article]
Titre : Combined 'spear and shield' : superhydrophilic antimicrobial and antifouling mesh membrane for efficient oil–water separation through facile and environmentally friendly strategy Type de document : texte imprimé Auteurs : Ming Lu, Auteur ; Jiasi Zhao, Auteur ; Weiping Tu, Auteur ; Jianqing Hu, Auteur ; Feng Wang, Auteur Année de publication : 2017 Article en page(s) : p. 243–253 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens
Eau
Huiles et graisses
Hydrophilie
PDSH
Polymérisation en émulsion
Revêtements antisalissures:Peinture antisalissures
Séparation (technologie)Index. décimale : 667.9 Revêtements et enduits Résumé : Superhydrophilic stainless steel mesh membranes (SSMMs) with excellent antifouling, antimicrobial, and filtration performance, based on three-layer architecture, have been successfully prepared by a facile and environmentally friendly strategy. The superhydrophilic terpolymer poly(DMHB-SPP-HEA), denoted as PDSH, was synthesized through aqueous solution polymerization. PDSH-coated SSMMs (PDSH-SSMMs) were achieved by successive dip-coating of the commercial SSMMs into polyvinyl alcohol, divinyl sulfone (DVS), and PDSH solutions. The DVS layer and PDSH solution were crosslinked through DVS chemistry to enhance the hydrophilicity and provide a number of unique properties, such as antimicrobial activity, antifouling ability, and oil–water separation capability. Two different PDSH-SSMMs, PDSH0-SSMM and PDSH5-SSMM, were prepared and characterized using FTIR, SEM, and contact angle measurement (CAM). The antimicrobial activity, bovine serum albumin (BSA) fouling, and oil–water separation performance were evaluated simultaneously. The results indicate that PDSH0-SSMM is an excellent oil–water separation membrane for long-term separation, together with its extra antimicrobial and antifouling properties. It is promising for the industrialization of multi-functional membranes through this facile and environmentally friendly strategy. Note de contenu : - EXPERIMENTAL : Terpolymer synthesis - PDSH-SSMMs preparation - Terpolymer characterization - Surface characterization - Biological characterization - Filtration tests
- RESULTS AND DISCUSSION : Terpolymer characterization - Surface characterization - Biological tests - Filtration tests - Necessity of the zwitterionDOI : 10.1007/s11998-016-9834-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9834-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27806
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 1 (01/2017) . - p. 243–253[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18674 - Périodique Bibliothèque principale Documentaires Disponible Coming under attack in ADHESIVE TECHNOLOGY, Vol. 19, N° 1 (03/2002)
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Titre : Coming under attack Type de document : texte imprimé Année de publication : 2002 Article en page(s) : p. 13-15 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens
Conservateurs (chimie)
Polymères en émulsion
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : The author looks at how to protect water-based products from attacks by micro-organisms and as a result save money. Note de contenu : - Protection
- Exposure
- Nervous
- Stability
- Biocides
- Bacteria
- Studies
- Table 1 : Strengths and weaknesses of IT biocides
- Table 2 : The advantages of FD type biocidesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37388
in ADHESIVE TECHNOLOGY > Vol. 19, N° 1 (03/2002) . - p. 13-15[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001993 - Périodique Bibliothèque principale Documentaires Disponible A comprehensive range of CLP-compliant biocides / Gilles Pradier in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4606 (03/2015)
PermalinkConcept to improve the long-term protectionof coatings / Paul Wood in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4580 (01/2013)
PermalinkLes conservateurs naturels / Sophie Pomarel / 2001
PermalinkConservation douce & produits multifonctionnels / Carsten Dietz in EXPRESSION COSMETIQUE, N° Hors-série (12/2021)
PermalinkConserver naturellement les formules cosmétiques / Alexandra Jeanneau in EXPRESSION COSMETIQUE, N° Hors série (12/2012)
PermalinkLa contamination, un phénomène récent / Raphaëlle Maruchitch in GALVANO ORGANO, N° 794 (06-07/10/2010)
PermalinkControl of microorganisms on tanned leather : from fungicide to antimicrobial function leather / Haibin Gu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 2 (02/2016)
PermalinkUne couche antimicrobienne in GALVANO ORGANO, N° 817 (01-02/2013)
PermalinkPermalinkCyclodextrin-based hyperbranched polyester: synthesis, characterization, and antimicrobial activity / Swaminathan Prabu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 5 (09/2018)
PermalinkPermalinkPermalinkPermalinkDevelopment of antibacterial waterborne polymeric coating using iodine complex / Hariharan Sekar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 2 (03/2024)
PermalinkDevelopment of direct contact-killing non-leaching antimicrobial polyurethanes through click chemistry / Kaimei Peng in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 6 (11/2018)
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