Poly(isosorbide succinate)-based in situ forming implants as potential systems for local drug delivery: Preliminary studies.
Mater Sci Eng C Mater Biol Appl
; 91: 311-317, 2018 Oct 01.
Article
en En
| MEDLINE
| ID: mdl-30033260
ABSTRACT
In situ forming implants (ISFI) are proved to be effective drug delivery systems in various local therapies. This research focuses on preliminary characteristics of a new biodegradable ISFI formulation based on poly(isosorbide succinate) (PISU) for modulated, over 3-week, release of doxycycline hyclate (DOXY). The Alamar Blue cytotoxicity assay was carried out for PISU using FK-1 and AoSMC cell lines. PISU resin was found to be non-toxic in wide range of concentrations. The formulation viscosity, dependent on shear rate, facilitates its easy injection into required site where solid depot is formed immediately after injection. DOXY, incorporated into this formulation, was released in vitro within 21â¯days, during which collected solutions exhibited antibacterial activity against gram-positive and gram-negative bacteria Staphylococcus aureus and Escherichia coli, respectively. The morphology of the precipitated depots was characterized by scanning electron microscopy (SEM). The obtained results suggest potential applicability of this new PISU-based formulation as injectable drug delivery system forming implant at an injection site by phase separation and precipitation of the polymer.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
3_ND
Problema de salud:
3_neglected_diseases
/
3_zoonosis
Asunto principal:
Staphylococcus aureus
/
Succinatos
/
Doxiciclina
/
Escherichia coli
Límite:
Humans
Idioma:
En
Revista:
Mater Sci Eng C Mater Biol Appl
Año:
2018
Tipo del documento:
Article