Synthesis of Magnetic Gold Coated Poly (Ε-Caprolactonediol) Based Polyurethane/Poly(N-Isopropylacrylamide)-Grafted-Chitosan Core-Shell Nanofibers for Controlled Release of Paclitaxel and 5-Fu Publisher Pubmed



Farboudi A¹ ; Nouri A² ; Shirinzad S³ ; Sojoudi P⁴ ; Davaran S⁵ ; Akrami M⁶ ; Irani M⁷ Show Affiliations
Source: International Journal of Biological Macromolecules Published:2020

Abstract

The poly (ε-caprolactonediol) based polyurethane (PCL-Diol-b-PU)/poly(N-isopropylacrylamide)-grafted-chitosan (PNIPAAm-g-chitosan) core-shell nanofibers were synthesized via coaxial electrospinning process. Paclitaxel and 5-FU anticancer drugs were incorporated into the core of nanofibers. The nanofibers surface was coated using magnetic gold nanoparticles and the potential of synthesized nanofibers was investigated for the sustained release of paclitaxel and 5-FU toward 4T1 breast cancer cells death in vitro and in vivo. The synthesized magnetic nanoparticles were characterized using SEM, TEM, XRD and DLS analysis. The surface morphology of nanofibers was studied under various applied voltage and different shell flow rates. The paclitaxel and 5-FU release profiles from nanofibers were examined under acidic and physiological pH. The maximum 4T1 cell killing was found to be 78% using magnetic gold coated-nanofibers in the presence of external magnetic field. The SEM images after incubation of nanofibers in 4T1 breast cancer cells indicated the well adhesion of cells on the nanofibers surface. The in vivo studies showed that the tumor volume did not change during 10 days. The minimum increase in tumor volume was obtained using paclitaxel and 5-FU loaded-nanofibers coated by the magnetic gold nanoparticles. The obtained results demonstrated the high therapeutic efficiency of synthesized nanofibrous carrier toward breast cancer treatment. © 2019 Elsevier B.V.