1
|
Yunoki S, Mogi A, Mizuno K, Nagakawa Y, Hiraoka Y. Plasticizer-gelatin mixed solutions as skin protection materials with flexible-film-forming capability. Heliyon 2024; 10:e25441. [PMID: 38352760 PMCID: PMC10862670 DOI: 10.1016/j.heliyon.2024.e25441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 01/18/2024] [Accepted: 01/26/2024] [Indexed: 02/16/2024] Open
Abstract
To demonstrate the feasibility of plasticizer-gelatin solutions as novel skin protection materials from a physical aspect, we evaluated the rheological properties of the solutions and the mechanical properties and textures of their dried sheets and films. Three types of sugars and polyols were employed as organic plasticizers and mixed with gelatin in solutions at plasticizer/gelatin weight ratios of 0.13-1.67. The plasticizers minimally affected the viscosities and gelation temperatures of the gelatin solutions, but they remarkably softened dried gelatin sheets, except for propylene glycol. Glycerol exhibited the best plasticizing effects, but the sheets obtained using glycerol showed tacky textures. Preliminary investigations on the film-forming properties of the solutions on the human skin showed that the fructose-gelatin solution at a weight ratio of 1.0 formed a flexible thin film with a texture and mechanical properties similar to those of a commercially available polyurethane-based flexible film dressing. In terms of physical properties, we conclude that the fructose-gelatin solution has potential as a skin protection material that transforms from a solution to a film on the skin.
Collapse
Affiliation(s)
- Shunji Yunoki
- Institute for the Promotion of Business-Regional Collaboration, Hokkaido University, Kita-21, Nishi-11, Kita-ku, Sapporo, Hokkaido, 001-0021, Japan
- Biotechnology Group, Tokyo Metropolitan Industrial Technology Research Institute (TIRI), 2-4-10 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Asami Mogi
- New Business Planning and Research Section, Shin Nippon Yakugyo Co., Ltd, 15-10 Nihonbashi-Kodenmacho, Chuo-Ku, Tokyo, 103-0001, Japan
| | - Keizo Mizuno
- New Business Planning and Research Section, Shin Nippon Yakugyo Co., Ltd, 15-10 Nihonbashi-Kodenmacho, Chuo-Ku, Tokyo, 103-0001, Japan
| | - Yoshiyasu Nagakawa
- Biotechnology Group, Tokyo Metropolitan Industrial Technology Research Institute (TIRI), 2-4-10 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Yosuke Hiraoka
- Biomedical Department, R&D Center, Nitta Gelatin Inc., 2-22, Futamata, Yao City, Osaka, 581-0024, Japan
| |
Collapse
|