Dr. B. C. Roy College of Pharmacy and AHS, Durgapur 713206, India.
Department of Pharmaceutical Engineering, Faculty of Chemical and Process Engineering Technology, University Malaysia Pahang, Gambang 26300, Malaysia; Centre of Excellence for Advanced Research in Fluid Flow (CARIFF), University Malaysia Pahang, Gambang 26300, Malaysia.
Int J Biol Macromol. 2020 Nov 1;162:1849-1861. doi: 10.1016/j.ijbiomac.2020.08.060. Epub 2020 Aug 8.
Applying nanotechnology to deliver drug could result in several benefits such as prolong duration of action, enhancement in overall bioavailability, targeting to specific site, low initial loading dose require, systemic stability enhancement etc. Halloysite is one of those clay minerals showing maximum effectiveness when consider as a nano drug carriers for different kind applications. Here, we have used norfloxacin as the model drug for loading into halloysite nanotube (HNT) for its anti-bacterial activity. Norfloxacin was loaded into halloysites by vacuum operation and sonication. The nanotubes were evaluated using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), optical microscopy, water absorption studies, cytotoxicity studies, antimicrobial studies and in vitro diffusion studies. SEM, FT-IR and XRD analysis data showed that the norfloxacin was successfully loaded into nanotubes. TEM analysis confirmed loading of norfloxacin in halloysites' lumen. The halloysite/chitosan nanocomposites were prepared by solvent casting and freeze-drying method. SEM analysis revealed compact and rugged surface of nanocomposites due to existing norfloxacin loaded halloysite. FTIR and XRD confirmed formation of nanocomposite. The nanocomposites showed good antimicrobial effect and good biocompatibility in cytotoxicity study. The in-vitro release studies revealed that halloysite/chitosan nanocomposites were able to sustain the drug release. Also, the nanocomposites were stable in various humidity conditions. Therefore, all the outcomes suggest that the prepared nanocomposites can provide enhanced therapeutic benefits and they can be very potential nano vehicle for sustaining drug delivery.
将纳米技术应用于药物输送可以带来多种好处,例如延长作用时间、提高整体生物利用度、靶向特定部位、降低初始载药量、增强系统稳定性等。埃洛石是一种粘土矿物,当其用作不同类型应用的纳米药物载体时,表现出最大的效果。在这里,我们使用诺氟沙星作为模型药物来负载到埃洛石纳米管(HNT)中,以发挥其抗菌活性。诺氟沙星通过真空操作和超声加载到埃洛石中。通过 X 射线衍射(XRD)、傅里叶变换红外光谱(FTIR)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)、光学显微镜、吸水性研究、细胞毒性研究、抗菌研究和体外扩散研究对纳米管进行了评估。SEM、FT-IR 和 XRD 分析数据表明,诺氟沙星已成功负载到纳米管中。TEM 分析证实了诺氟沙星在埃洛石管腔中的负载。通过溶剂浇铸和冷冻干燥法制备埃洛石/壳聚糖纳米复合材料。SEM 分析表明,由于存在负载有诺氟沙星的埃洛石,纳米复合材料具有致密而坚固的表面。FTIR 和 XRD 证实了纳米复合材料的形成。纳米复合材料在细胞毒性研究中表现出良好的抗菌效果和良好的生物相容性。体外释放研究表明,埃洛石/壳聚糖纳米复合材料能够持续释放药物。此外,纳米复合材料在各种湿度条件下均稳定。因此,所有结果表明,所制备的纳米复合材料可以提供增强的治疗益处,并且它们可以成为非常有前途的纳米载体,用于维持药物输送。
Int J Biol Macromol. 2019-1-11
Int J Biol Macromol. 2020-5-15
J Colloid Interface Sci. 2017-4-6
Curr Pharm Des. 2025
Antibiotics (Basel). 2022-12-6