Desarrollo de un apósito biodegradable con potencial actividad protectora para el tratamiento de infecciones
Archivos
Fecha
2019
Autores
Ramos Rodríguez, Geannina
ESQUIVEL ALFARO, MARIANELLY
Madrigal-Carballo, Sergio
Villegas Peñaranda, Luis Roberto
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad Nacional (Costa Rica)
Resumen
Resumen. Se obtuvieron apósitos biodegradables para tratamiento de heridas, con potencial actividad protectora contra infecciones. Las muestras se sintetizaron a partir de los residuos generados durante el procesamiento del camarón camello (Heterocarpus vicarius) y se cargaron con un antibiótico modelo. Los apósitos de quitosano cargados con antibiótico se formularon con concentraciones de antibióticos entre 0,65 y 4 mg/ml. Los apósitos obtenidos tenían un tamaño de poro entre 317 y 180 μm, mostraron un porcentaje de hinchamiento de 83 a 92% y el mecanismo de liberación del fármaco siguió a una cinética de primer orden, que se relaciona con un mecanismo de liberación de la inflamación por erosión del fármaco. Además, la evaluación de la actividad antimicrobiana in vitro mostró que el apósito para heridas cargado con antibióticos inhibe el crecimiento bacteriano de las cepas Staphylococcus aureus y Pseudomonas aeruginosa. Las muestras desarrolladas permiten la liberación de antibióticos, poros para el crecimiento celular, capacidad de absorción de líquidos y protección antimicrobiana efectiva en el tratamiento de infecciones bacterianas.
Abstract. Biodegradable wound dressings with potential protective activity against infections were obtained. The samples were synthesized from waste generated during the processing of the camel shrimp (Heterocarpus vicarius) and were loaded with a model antibiotic. The wound dressings obtained had a pore size between 317 and 180 μm, showed a swelling percentage from 83 to 92% and the mechanism of drug release followed a first-order kinetic, which is related with a swelling-erosion release mechanism of the drug. In addition, the evaluation of the antimicrobial activity in vitro test showed that wound dressing loaded with antibiotic inhibits the bacterial growth of strains Staphylococcus aureus and Pseudomonas aeruginosa. The developed samples allow the release of the antibiotic, pores for cell growth, fluid absorption capacity and effective antimicrobial protection in the treatment of bacterial infections.
Abstract. Biodegradable wound dressings with potential protective activity against infections were obtained. The samples were synthesized from waste generated during the processing of the camel shrimp (Heterocarpus vicarius) and were loaded with a model antibiotic. The wound dressings obtained had a pore size between 317 and 180 μm, showed a swelling percentage from 83 to 92% and the mechanism of drug release followed a first-order kinetic, which is related with a swelling-erosion release mechanism of the drug. In addition, the evaluation of the antimicrobial activity in vitro test showed that wound dressing loaded with antibiotic inhibits the bacterial growth of strains Staphylococcus aureus and Pseudomonas aeruginosa. The developed samples allow the release of the antibiotic, pores for cell growth, fluid absorption capacity and effective antimicrobial protection in the treatment of bacterial infections.
Descripción
Palabras clave
QUITOSANO, POLÍMEROS, HERIDAS, ENFERMEDADES BACTERIANAS, CHITOSAN, POLYMERS, WOUNDS, BACTERIAL DISEASES