PLGA Membranes Functionalized with Gelatin through Biomimetic Mussel-Inspired Strategy.
DOPA
PLGA
biomimetic functionalization
electrospinning
surface modification
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
02 Nov 2020
02 Nov 2020
Historique:
received:
30
07
2020
revised:
16
09
2020
accepted:
29
10
2020
entrez:
5
11
2020
pubmed:
6
11
2020
medline:
6
11
2020
Statut:
epublish
Résumé
Electrospun membranes have been widely used as scaffolds for soft tissue engineering due to their extracellular matrix-like structure. A mussel-inspired coating approach based on 3,4-dihydroxy-DL-phenylalanine (DOPA) polymerization was proposed to graft gelatin (G) onto poly(lactic-co-glycolic) acid (PLGA) electrospun membranes. PolyDOPA coating allowed grafting of gelatin to PLGA fibers without affecting their bulk characteristics, such as molecular weight and thermal properties. PLGA electrospun membranes were dipped in a DOPA solution (2 mg/mL, Tris/HCl 10 mM, pH 8.5) for 7 h and then incubated in G solution (2 mg/mL, Tris/HCl 10 mM, pH 8.5) for 16 h. PLGA fibers had an average diameter of 1.37 ± 0.23 µm. Quartz crystal microbalance with dissipation technique (QCM-D) analysis was performed to monitor DOPA polymerization over time: after 7 h the amount of deposited polyDOPA was 71 ng/cm
Identifiants
pubmed: 33147761
pii: nano10112184
doi: 10.3390/nano10112184
pmc: PMC7692787
pii:
doi:
Types de publication
Journal Article
Langues
eng
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