Bergonzi, Carlo;
Bianchera, Annalisa;
Remaggi, Giulia;
Ossiprandi, Maria Cristina;
Bettini, Ruggero;
Elviri, Lisa
3D Printed Chitosan/Alginate Hydrogels for the Controlled Release of Silver Sulfadiazine in Wound Healing Applications: Design, Characterization and Antimicrobial Activity
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Medientyp:
E-Artikel
Titel:
3D Printed Chitosan/Alginate Hydrogels for the Controlled Release of Silver Sulfadiazine in Wound Healing Applications: Design, Characterization and Antimicrobial Activity
Beteiligte:
Bergonzi, Carlo;
Bianchera, Annalisa;
Remaggi, Giulia;
Ossiprandi, Maria Cristina;
Bettini, Ruggero;
Elviri, Lisa
Erschienen:
MDPI AG, 2023
Erschienen in:
Micromachines, 14 (2023) 1, Seite 137
Sprache:
Englisch
DOI:
10.3390/mi14010137
ISSN:
2072-666X
Entstehung:
Anmerkungen:
Beschreibung:
The growing demand for personalized medicine requires innovation in drug manufacturing to combine versatility with automation. Here, three-dimensional (3D) printing was explored for the production of chitosan (CH)/alginate (ALG)-based hydrogels intended as active dressings for wound healing. ALG hydrogels were loaded with 0.75% w/v silver sulfadiazine (SSD), selected as a drug model commonly used for the therapeutic treatment of infected burn wounds, and four different 3D CH/ALG architectures were designed to modulate the release of this active compound. CH/ALG constructs were characterized by their water content, elasticity and porosity. ALG hydrogels (Young’s modulus 0.582 ± 0.019 Mpa) were statistically different in terms of elasticity compared to CH (Young’s modulus 0.365 ± 0.015 Mpa) but very similar in terms of swelling properties (water content in ALG: 93.18 ± 0.88% and in CH: 92.76 ± 1.17%). In vitro SSD release tests were performed by using vertical diffusion Franz cells, and statistically significant different behaviors in terms of the amount and kinetics of drugs released were observed as a function of the construct. Moreover, strong antimicrobial potency (100% of growth inhibition) against Staphylococcus aureus and Pseudomonas aeruginosa was demonstrated depending on the type of construct, offering a proof of concept that 3D printing techniques could be efficiently applied to the production of hydrogels for controlled drug delivery.