Modification of Tungsten Trioxide with Polyamidoamine Dendrimer: A Thermosensitive Nanocarrier for Near-Infrared Laser Triggered Delivery of Docetaxel

被引:0
作者
Karami, Sedigheh [1 ]
Heidarinasab, Amir [1 ]
Panahi, Homayon Ahmad [2 ]
Ghasemian, Motaleb [3 ]
机构
[1] Islamic Azad Univ, Dept Chem Engn, Sci & Res Branch, Tehran, Iran
[2] Islamic Azad Univ, Dept Chem, Cent Tehran Branch, Tehran, Iran
[3] Lorestan Univ Med Sci, Sch Pharm, Dept Med Chem, Khorramabad, Iran
关键词
pH /thermo-sensitive polymer; Near-infrared; Drug delivery; ENTRAPPED GOLD NANOPARTICLES; PHOTOTHERMAL THERAPY; IN-VITRO; CANCER; ADSORPTION; POLYMERS; NANOSTRUCTURES; CHROMATOGRAPHY; TRANSPORT; COPOLYMER;
D O I
10.1007/s10924-024-03410-6
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The pH and thermo-sensitive nanocarrier was synthesized by the modification of tungsten trioxide (WO3) through copolymerization reaction and branched polyamidoamine (PAMAM) dendrimer for use in near-infrared (NIR) triggered docetaxel (DTX) delivery. To do this, after grafting on the WO3 nanoparticle surface with a thermo-sensitive poly [(vinyl methyl ether)]-co-[allylamine]s, three generations of PAMAM dendrimer using ethylenediamine and methyl methacrylate, were successfully grown formed. Nanostructures were characterized by using X-ray diffraction, FT-IR, SEM, TEM, GPC and TGA. Different parameters including temperature, pH, and contact times were considered to optimize the operating conditions and evaluate the potential of dendrimer nanocarrier for drug delivery. By analyzing the in vitro drug release after 6 h in fluids with different pH (5.6 and 7.4) and temperatures (37 and 50 degrees C), a good response was found at pH 5.6 and temperature 50 degrees C, which indicated controlled release of drug and the dual response (pH and thermo responsiveness) of the nanocarrier. Investigation of the effect of NIR irradiation showed that the release of DTX under NIR irradiation within 12 min was 99%, which was 10 times that without NIR. Photothermal effect of NIR induced the shrinkage of thermo-sensitive polymer which results in the control of drug. Besides, the adsorption kinetic was examined using Temkin, Dubinin, Freundlich, and Langmuir isotherm models. The sorption process of DTX by nanocarrier was best expressed by the Langmuir model with high coefficient of determination (R2) equal to 0.9985. Also, pseudo-second-order kinetic model confirmed the best correlation between experimental data with R2 = 0.999. The results revealed that the pH/ thermo-sensitive nanocarrier is a promising candidate for drug delivery.
引用
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页码:12 / 28
页数:17
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