基于甘油和二甲甘油的聚合物:对纳米配方性能后的骨干变化的评估
Eleni Axioti1, Emily G Dixon1, Morgan Reynolds-Green1
1School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom.
Colloids and surfaces. B, Biointerfaces
|March 7, 2024
概括
研究人员从甘油中开发了新的生物降解聚合物,作为用于药物输送的PEGylated聚合物的可持续替代品. 这些基于糖的纳米颗粒显示出改善药物封装和生物相容性的前景.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 纳米技术纳米技术
背景情况:
- 聚乙烯甘醇 (PEG) 基聚,虽然在生物医学应用中取得了成功,但由于免疫性和生物降解性差,面临着挑战.
- PEGylated聚合物的局限性包括有限的化学修饰选项和疏水性,阻碍在生理条件下的性能.
- 对于药物输送系统而言,对PEG的有效,生物相容和生物降解替代品的需求越来越大.
研究的目的:
- 为了研究1,6-hexanediol (Hex) 加入到多糖酸盐 (PGA) 和多糖酸盐 (PDGA) 聚中.
- 为了评估不同的 (二) 甘油:Hex比如何影响纳米粒子 (NP) 形成,稳定性,药物封装和降解.
- 为药物输送应用确定有前途的无PEG聚候选物.
主要方法:
- 用不同的 (二) 甘油:Hex比率 (30:70,50:50,70:30mol/mol) 合成的PGA和PDGA的系统选.
- 分析纳米粒子形成,在各种介质中的稳定性和封装效率的模型疏水性染料.
- 评估聚合物降解和体外/体内生物相容性.
主要成果:
- 聚合物两性的微小调整显著影响了NP的形成,稳定性,药物封装和降解.
- PDGA-Hex 30% (70:30 滴糖醇:Hex 比率) 样本的稳定性与基于甘油的对应物具有可比性.
- 与其他配方相比,PDGA-Hex 30%的水染料表现出更高的封装效率.
结论:
- 可生物降解 (二) 糖醇基聚烯为药物输送的PEGylated系统提供了可行的和可持续的替代方案.
- 通过控制的单体比率来调整这些聚合物的两性,对于优化NP特征至关重要.
- 开发的PDGA-Hex 30%配方显示了在制药和生物医学领域先进的无PEG纳米系统的巨大潜力.
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