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Synthesis of hollow mesoporous ruthenium nanoparticles: evaluation of physico-chemical properties and toxicity

机译:中空介孔钌纳米粒子的合成:物理化学性质和毒性的评价

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摘要

Hybrid nanoparticles (NPs) with a mesoporous hollow structure have attracted great interest for biomolecule delivery, due to the easy fabrication process, the multi-functionalization capability for navigating to specific hosts and the high surface area for encapsulating therapeutic moieties. In the present study, hybrid ruthenium NPs were prepared with a dual template method by using colloidal amine functionalized silica particles and poloxamer 407. The results indicate that the size of the NPs can be controlled; smooth, spherical, monodispersed, negative surface charge potential, polycrystalline, and hollow interior architecture particles can be prepared. Also, the Brunauer-Emmett-Teller (BET) analysis shows a specific high surface area of 75 m(2) g(-1). The hybrid NP system also exhibits fluorescent properties. Thus this system could be a great advantage for cell trafficking. Then, cell cytotoxicity was evaluated in a real-time manner for two different cell lines using the electric cell-substrate impedance sensing (ECIS) system, and the results show that a higher than 100 mg ml(-1) concentration is cytotoxic. The negatively charged surface NPs show higher cellular uptake through electrostatic interactions and binding at the cationic sites of the cell membrane, and also show high drug loading and potential for pH sensitive drug release. This hybrid NP system represents a promising nanocarrier for effective and favorable antitumor treatment and theranostic systems.
机译:混合纳米颗粒(NP)与介孔中空结构已经引起对生物分子递送的极大兴趣,由于容易制造过程中,用于导航到特定的主机和用于包封治疗性部分的高表面积的多官能化的能力。在本研究中,采用了双模板方法通过使用制备的混合纳米粒子钌胶体胺官能化的二氧化硅颗粒和泊洛沙姆407。结果表明,该纳米粒子的尺寸可以被控制;平滑,球形,单分散的,负的表面电荷电位,多晶,和中空的内部体系结构的颗粒可以制备。此外,布鲁诺 - 埃梅特 - 特勒(BET)的分析说明为75μm的特定高表面积(2)克(-1)。混合动力系统NP也表现出荧光性质。因此,该系统可用于细胞运输有很大的好处。然后,细胞的细胞毒性在使用电细胞 - 基底阻抗感测(ECIS)系统中的两个不同细胞系中的实时方式进行评价,结果表明,高于100mg毫升(-1)浓度是细胞毒性的。带负电荷的表面的NP显示通过静电相互作用和更高的细胞摄取在细胞膜的阳离子位点的结合,并且还显示出高的药物负载和势为pH敏感的药物释放。这种混合NP系统代表用于有效和有利的抗肿瘤治疗和治疗诊断系统有希望的纳米载体。

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  • 来源
    《RSC Advances》 |2015年第97期|共8页
  • 作者单位

    Gachon Univ Dept Bionanotechnol Songnam 461701 Gyeonggi Do South Korea;

    Gachon Univ Dept Bionanotechnol Songnam 461701 Gyeonggi Do South Korea;

    Gachon Univ Dept Bionanotechnol Songnam 461701 Gyeonggi Do South Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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