| Titre : |
Shaping characteristics in alginate hydrogel encapsulation via a two-fluid spraying method |
| Type de document : |
texte imprimé |
| Auteurs : |
Baekhoon Seong, Auteur ; Jihoon Kim, Auteur ; Sejin Jung ; Giho Kang ; Jinkee Lee ; Doyoung Byun ; Kwang-Soo Lee ; Hyung-Seok Jang ; Jin Hwan Ko |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 1157-1165 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Alginate de sodium L'alginate de sodium ou polymannuronate sodique, de formule NaC6H7O6 est un additif alimentaire (E401) utilisé dans les boissons, constitué d’alginate et de sodium. Il se présente sous forme de poudre blanche à blanc crème, inodore et sans saveur, très soluble dans l'eau. C'est une longue molécule extraite d'algues brunes, constituée d'unités de glucides reliées ensemble pour former une chaîne.
Dépôt par pulvérisation
Encapsulation
hydrocolloïdes
Liposomes
Pulvérisation
Revêtements antisalissures:Peinture antisalissures
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Recently, an alginate hydrogel containing amphiphilic liposomes was suggested for application to an antifouling coating. In this study, we investigate the shaping characteristics of the alginate hydrogel by a spraying method for application to the coating. Sodium alginate droplets from the spraying nozzle are known to be differently shaped by several external forces during the encapsulation process when such a droplet impacts onto the surfaces of liquid containing calcium ions. We adopted a two-fluid spraying method for fast alginate droplets with a scalable size suitable for mass production. Various shapes, such as mushroom, petal, sphere, and thin-sheet alginate hydrogel shapes containing liposomes, were obtained via this experimental approach. Supported by a theoretical analysis, we determined regimes for the various shapes depending on the droplet size and the concentration of the sodium alginate solution. Alginate hydrogel of different shapes based on the regimes will be used for the coating throughout a different post-processing. |
| Note de contenu : |
- EXPERIMENTAL SETUP : Preparation of sodium alginate solution containing amphiphilic liposomes - Generation of alginate hydrogel containing liposomes by a two-fluid spraying technique - Characterization of the sprayed droplets - Gelation phenomenon of an impacting droplet - Characterization of the liposome-encapsulated calcium alginate hydrogel
- RESULTS AND DISCUSSION : Velocity and viscosity of the sprayed droplets - Sodium alginate droplet containing liposomes impacting on a solid substrate - Calcium alginate hydrogel containing liposomes after gelation |
| DOI : |
10.1007/s11998-018-0060-9 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0060-9.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31146 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 5 (09/2018) . - p. 1157-1165
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