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壳聚糖纳米颗粒作为苄基异硫氰酸酯的生物相容性和高效纳米载体。

Chitosan nanoparticles as a biocompatible and efficient nanowagon for benzyl isothiocyanate.

机构信息

Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India.

Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India.

出版信息

Int J Biol Macromol. 2018 Aug;115:18-28. doi: 10.1016/j.ijbiomac.2018.04.036. Epub 2018 Apr 10.

Abstract

A plethora of evidences support the health benefits of a sulfur containing compound called Benzyl Isothiocyanate. However, its therapeutic application is limited due to its low solubility, poor stability and inadequate bioavailability. The problem has been worked upon and resolved by the synthesis of biodegradable nanoparticles using chitosan as the controlled delivery nanowagon. The prepared nanoparticles have been characterized using UV-visible absorption spectroscopy, IR spectroscopy, XRD, TGA, TEM and FE-SEM. Results reveal that loading of benzyl isothiocyanate into chitosan nanoparticles increases its solubility and stability. The maximum encapsulation efficiency was obtained to be 64.68±4.7% with slow and sustained release of 77.78% in 144h at pH5.5. Clear enhancement in the stability of benzyl isothiocyanate that is sensitive to ultraviolet light has been showcased after its encompassment in the cationic polymer. Further the biosafety of the fabricated system has been demonstrated by haemolysis and its interaction with biomolecules. The antimicrobial activity connotes that the prepared nanoparticles can act as a useful and safe carrier for the loading of benzyl isothiocyanate making it a promising formulation for biological applications in future.

摘要

大量证据支持一种含硫化合物——苄基异硫氰酸酯对健康的益处。然而,由于其溶解度低、稳定性差和生物利用度不足,其治疗应用受到限制。为了解决这个问题,人们合成了可生物降解的纳米粒子,使用壳聚糖作为控制释放的纳米车。使用紫外可见吸收光谱、红外光谱、XRD、TGA、TEM 和 FE-SEM 对制备的纳米粒子进行了表征。结果表明,将苄基异硫氰酸酯负载到壳聚糖纳米粒子中可以提高其溶解度和稳定性。最大包封效率为 64.68±4.7%,在 pH5.5 下 144 小时内以 77.78%的速度缓慢持续释放。将对紫外线敏感的苄基异硫氰酸酯包裹在阳离子聚合物中后,明显提高了其稳定性。此外,通过溶血实验及其与生物分子的相互作用,证明了所构建系统的生物安全性。抗菌活性表明,所制备的纳米粒子可以作为苄基异硫氰酸酯的有效且安全的载体,使其成为未来生物应用中很有前途的制剂。

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