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首页> 外文期刊>Journal of Turbulence >Synthesis and Characterization of Micelle-Forming PEG-Poly(Amino Acid) Copolymers with Iron-Hydroxamate Cross-Linkable Blocks for Encapsulation and Release of Hydrophobic Drugs
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Synthesis and Characterization of Micelle-Forming PEG-Poly(Amino Acid) Copolymers with Iron-Hydroxamate Cross-Linkable Blocks for Encapsulation and Release of Hydrophobic Drugs

机译:胶束形成PEG聚(氨基酸)共聚物的合成与表征用铁 - 羟肟酸盐可交联嵌段包封和释放疏水性药物

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摘要

Described is the development of a polymeric micelle drug delivery platform that addresses the physical property limitations of many nanovectors. The system employs triblock copolymers comprised of a hydrophilic poly(ethylene glycol) (PEG) block, and two poly(amino acid) (FAA) blocks: a stabilizing cross-linking central block, and a hydrophobic drug encapsulation block. Detailed description of synthetic strategies and considerations found to be critical are discussed. Of note, it was determined that the purity of the alpha-amino acid-N-carboxyanhydrides (NCA) monomers and PEG macroinitiator are ultimately responsible for impurities that arise during the polymerization. Also, contrary to current beliefs in the field, the presence of water does not adversely affect the polymerization of NCAs. Furthermore, we describe the impact of poly(amino acid) conformational changes, through the incorporation of D-amino acids to form mixed stereochemistry PAA blocks, with regard to the physical and pharmacokinetic properties of the resulting micelles.
机译:描述的是研制一种聚合物胶束药物递送平台,用于解决许多纳米型材的物理性质限制。该系统采用包含亲水性聚(乙二醇)(PEG)嵌段的三嵌段共聚物,以及两个聚(氨基酸)(FAA)嵌段:稳定的交联中央嵌段和疏水性药物包封块。讨论了综合策略和考虑因素的详细描述是关键的。值得注意的是,确定α-氨基酸 - N-羧酸酐(NCA)单体和PEG大碱基的纯度最终对聚合过程中产生的杂质负责。同样,与现场的目前的信仰相反,水的存在不会对NCA的聚合产生不利影响。此外,我们描述了通过掺入D-氨基酸形成混合的立体化学PAA嵌段的聚(氨基酸)构象变化的影响,关于所得胶束的物理和药代动力学性质。

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  • 来源
    《Journal of Turbulence》 |2017年第6期|共11页
  • 作者单位

    Intezyne Technol 3720 Spectrum Blvd Suite 104 Tampa FL 33612 USA;

    Intezyne Technol 3720 Spectrum Blvd Suite 104 Tampa FL 33612 USA;

    Intezyne Technol 3720 Spectrum Blvd Suite 104 Tampa FL 33612 USA;

    Intezyne Technol 3720 Spectrum Blvd Suite 104 Tampa FL 33612 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 流体力学;
  • 关键词

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