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Singly and binary grafted poly(vinyl chloride) urinary catheters that elute ciprofloxacin and prevent bacteria adhesion.
Islas, Luisa; Alvarez-Lorenzo, Carmen; Magariños, Beatriz; Concheiro, Angel; del Castillo, Luis Felipe; Burillo, Guillermina.
Afiliación
  • Islas L; Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México D.F., Mexico.
  • Alvarez-Lorenzo C; Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain. Electronic address: carmen.alvarez.lorenzo@usc.es.
  • Magariños B; Departamento de Microbiología y Parasitología, Facultad de Biología CIBUS, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
  • Concheiro A; Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
  • del Castillo LF; Instituto de Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México D.F., Mexico.
  • Burillo G; Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México D.F., Mexico. Electronic address: burillo@nucleares.unam.mx.
Int J Pharm ; 488(1-2): 20-8, 2015 Jul 05.
Article en En | MEDLINE | ID: mdl-25891254
Acrylic acid (AAc) and poly(ethylene glycol) methacrylate (PEGMA) were singly and dually grafted onto poly(vinyl chloride) (PVC) urinary catheters with the aim of preventing biofouling by endowing the catheters with the ability to load and release antimicrobial agents and to avoid bacteria adhesion. The polymers were grafted applying an oxidative pre-irradiation ((60)Co source) method in two steps. Grafting percentage and kinetics were evaluated by varying the absorbed pre-irradiation dose, reaction time, monomer concentration, and reaction temperature. Catheters with grafting percentages ranging from 8 to 207% were characterized regarding thermal stability, surface hydrophilicity, mechanical properties, swelling, and lubricity. The modified catheters proved to have better compatibility with fibroblast cells than PVC after long exposure times. Furthermore, grafted catheters were able to load ciprofloxacin and sustained its release in urine medium for several hours. Ciprofloxacin-loaded catheters inhibited the growth of Escherichia coli and Staphylococcus aureus in the catheter surroundings and prevented bacteria adhesion.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polietilenglicoles / Cloruro de Polivinilo / Acrilatos / Ciprofloxacina / Catéteres Urinarios / Metacrilatos / Antibacterianos Idioma: En Revista: Int J Pharm Año: 2015 Tipo del documento: Article País de afiliación: México Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polietilenglicoles / Cloruro de Polivinilo / Acrilatos / Ciprofloxacina / Catéteres Urinarios / Metacrilatos / Antibacterianos Idioma: En Revista: Int J Pharm Año: 2015 Tipo del documento: Article País de afiliación: México Pais de publicación: Países Bajos