| Titre : |
Biologically inspired fighting germs using HCIO hydrogels with smectites |
| Type de document : |
texte imprimé |
| Auteurs : |
Jessica Gödeker, Auteur ; Anne Drewer, Auteur ; Tom Lamont, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 2-7 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Acide hypochloreux
Argile
Chlore
Désinfectants
Désinfection
Détergents
Formulation (Génie chimique)
Hectorite
hydrocolloïdes
Hygiène
Laponite
Rhéologie
Smectite
Thixotropie
|
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
Hypochlorous acid (HClO) is formed in the white blood cells of all mammals. As part of a mechanism that developed several millions of years ago, it also helps the human body to protect against pathogens that enter it. This makes the weak acid a nature-based option for disinfection. Despite this, a disadvantage of water-thin solutions of hypochlorous acid is that they have significantly limited anti-microbial potential due to the reduced contact time. Hydrogels overcome this limitation and lead to improved and more sustainable use. Due to the high reactivity of hypochlorous acid, common additives such as polymer thickeners and natural clays are not suitable. Synthetic smectite clays – of which the presented PURABYK-R 5500 is one example – are very similar in structure to natural clays. However, due to their subsequent technical development, synthetic smectite clays exhibit better stability and are therefore very well suited to forming these hydrogels. They stabilize the hypochlorous acid in the required pH value range and are free from components that impair the activity of HClO. These unique additives are produced under controlled conditions from naturally occurring inorganic mineral sources. They offer the possibility of using structures from nature, paired with a very high purity and consistent quality. Their great potential is presented here using PURABYK-R 5500 as an example. |
| Note de contenu : |
- INTRODUCTION : Hypochlorous acid - an effective nature-based weapon for combatting germs - HCIO-based hydrogels - a challenging system - PURABYK-R 5500 - a new, modified phyllosilicate with improved compatibility
- MATERIALS AND METHODS : Formulation of the hydrogel with PURABYK-R 5500 - A more in-depth reflection - high-resolution procedure for forming the nanostructures
- RESULTS AND DISCUSSION : Micro- and macro-morphology using TEM and AFM - Viscosity behavior of the hydrogel - thixotropy and yield point - Biocide effectiveness - influence of PURABYK-R 5500
- Table 1 : Formulation of the hydrogel |
| En ligne : |
https://drive.google.com/file/d/1zGfLvdCzX9ayCPFPutQAIz8mnUSThkhg/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38571 |
in SOFW JOURNAL > Vol. 148, N° 12 (12/2022) . - p. 2-7
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