| Autor: |
López-Calderón HD; Facultad de Ciencias Biológicas, Instituto de Biotecnología, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Nuevo León 66455, Mexico., Avilés-Arnaut H; Facultad de Ciencias Biológicas, Instituto de Biotecnología, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Nuevo León 66455, Mexico., Galán-Wong LJ; Facultad de Ciencias Biológicas, Instituto de Biotecnología, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Nuevo León 66455, Mexico., Almaguer-Cantú V; Facultad de Ciencias Biológicas, Instituto de Biotecnología, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Nuevo León 66455, Mexico., Laguna-Camacho JR; Facultad de Ingeniería Mecánica y Eléctrica., Universidad Veracruzana, Av. Venustiano Carranza s/n, col. Revolución, Poza Rica, Veracruz 93390, Mexico., Calderón-Ramón C; Facultad de Ingeniería Mecánica y Eléctrica., Universidad Veracruzana, Av. Venustiano Carranza s/n, col. Revolución, Poza Rica, Veracruz 93390, Mexico., Escalante-Martínez JE; Facultad de Ingeniería Mecánica y Eléctrica., Universidad Veracruzana, Av. Venustiano Carranza s/n, col. Revolución, Poza Rica, Veracruz 93390, Mexico., Arévalo-Niño K; Facultad de Ciencias Biológicas, Instituto de Biotecnología, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Nuevo León 66455, Mexico. |
| Abstrakt: |
Acceleration of wound healing can be achieved with the use of wound dressings. Through the electrospinning technique, a polymeric scaffold composed of two layers was processed: a gelatin and polyvinylpyrrolidone layer with gentamicin, and a second layer of cellulose acetate. The conditions for the electrospinning process were standardized for voltage parameters, feed flow and the distance from the injector to the collector. Once the values of the main variables for the electrospinning were optimized, a three-hour processing time was established to allow the separation of the material from the collector. The obtained material was characterized by observations on scanning electron microscopy, Fourier transform infrared spectroscopy and thermal analysis; contact angle measurement was performed to evaluate wettability properties, and antibacterial activity against Pseudomonas aeruginosa and Staphylococcus aureus were evaluated using the Kirby-Bauer test. The obtained fibers that form the bi-layer scaffold present diameters from 100 to 300 nm. The scaffold presents chemical composition, thermal stability, wettability characteristics and antibacterial activity that fulfill the proposal from this study, based on obtaining a scaffold that could be used as a drug delivery vehicle and a wound dressing material. |
