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Prevention of pulmonary air leaks using a biodegradable tissue-adhesive fiber sheet based on Alaska pollock gelatin modified with decanyl groups
- Source :
- Biomaterials science. 9(3)
- Publication Year :
- 2020
-
Abstract
- Tissue adhesives have been widely used in surgery to treat pulmonary air leaks. However, conventional adhesives have poor interfacial strength under wet conditions. To overcome this clinical problem, we modified Alaska pollock-derived gelatin to include decanyl (C10) groups (C10-ApGltn) and used electrospinning to create a tissue-adhesive fiber sheet (AdFS). C10-AdFS showed higher burst strength when adhering to porcine pleura compared with a sheet of original ApGltn (Org-ApGltn). Hematoxylin-eosin-stained sections after burst experiments reveal that a dense C10-AdFS layer remained on the surface of the porcine pleura. The effect of the degree of C10 modification of ApGltn on the burst strength was evaluated. ApGltn with a C10 modification ratio of 13 mol% amino groups (13C10-AdFS) exhibited the highest burst strength. Furthermore, from ex vivo experiments with extracted rat lung, 13C10-AdFS exhibited a higher burst strength (41 cm H2O) than Org-AdFS. The decanyl groups in 13C10-AdFS interacted with the hydrophobic proteins and the lipid bilayers of the cells, resulting in the high interfacial strength between 13C10-AdFS and the pleura. Moreover, 13C10-AdFS samples implanted subcutaneously in the backs of rats were completely degraded within 21 days without any severe inflammation. These results show that 13C10-AdFS is a promising adhesive material for the treatment of pulmonary air leaks.
- Subjects :
- food.ingredient
Swine
Biomedical Engineering
macromolecular substances
02 engineering and technology
010402 general chemistry
01 natural sciences
Gelatin
Air leak
food
Animals
General Materials Science
Fiber
Lung
Chemistry
Tissue adhesives
Fishes
021001 nanoscience & nanotechnology
Electrospinning
0104 chemical sciences
Severe inflammation
Rats
Tissue Adhesives
Adhesive
0210 nano-technology
Ex vivo
Biomedical engineering
Subjects
Details
- ISSN :
- 20474849
- Volume :
- 9
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Biomaterials science
- Accession number :
- edsair.doi.dedup.....7d8bd74ee70077da363d9abf0d64d21b