Synthesis of thermosensitive magnetic nanocarrier for controlled sorafenib delivery.
Allyl glycidyl ether/N-isopropylacrylamide-grafted magnetic nanoparticles were prepared using silica-coated magnetic nanoparticles as a substrate for radical copolymerization of allyl glycidyl ether and N-isopropylacrylamide. Chitosan was coupled with the prepared nanoparticles by opening the epoxy ring of the allyl glycidyl ether. The thermosensitive magnetic nanocarrier (TSMNC) obtained can be applied as a potent drug carrier. The TSMNC structure was characterized using Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry, vibrating sample magnetometer, and elemental analysis. Its morphology and size were investigated using field emission scanning electron microscopy, transmission electron microscopy and dynamic light scattering. The feasibility of employing the TSMNC for adsorption and in vitro controlled release of the chemotherapeutic agent sorafenib was tested. The effect of the adsorption parameters of pH, temperature, and loading time of sorafenib onto TSMNC was evaluated. The adsorption data was fitted to the Langmuir and Freundlich isotherms and the relevant parameters derived. The drug release profile indicated that 88% of the adsorbed drug was released within 35h at 45°C and drug release was Fickian diffusion-controlled. The results confirmed that the TSMNC has a high adsorption capacity at low temperature and good controlled release in a slow rate at a high temperature and could be developed for further application as a drug nanocarrier.
Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Amir
A
Heidarinasab
Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
Homayon
H
Ahmad Panahi
Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran. Electronic address: faramarzi.iaug@gmail.com.
Mehdi
M
Faramarzi
Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
Fatemeh
F
Farjadian
D000178:Acrylamides / Q000737:chemistry / Q000493:pharmacokinetics; D003692:Delayed-Action Preparations / Q000737:chemistry / Q000493:pharmacokinetics; D004852:Epoxy Compounds / Q000737:chemistry / Q000493:pharmacokinetics; D006358:Hot Temperature; D006801:Humans; D006863:Hydrogen-Ion Concentration; D058185:Magnetite Nanoparticles / Q000737:chemistry*; D009536:Niacinamide / Q000031:analogs & derivatives* / Q000737:chemistry / Q000493:pharmacokinetics; D010671:Phenylurea Compounds / Q000737:chemistry / Q000493:pharmacokinetics; D000077157:Sorafenib
D000178:Acrylamides; D003692:Delayed-Action Preparations; D004852:Epoxy Compounds; D058185:Magnetite Nanoparticles; D010671:Phenylurea Compounds; D009536:Niacinamide; D000077157:Sorafenib; C067295:N-isopropylacrylamide; C054361:allyl glycidyl ether
Chitosan; Drug delivery; N-isopropylacrylamide; Nanocarrier; Sorafenib; Thermosensitive magnetic nanoparticle