在泰勒分散分析中防止溶液吸附的影响:适用于蛋白质和脂质纳米粒子分析
Sébastien Roca1, Laurent Leclercq1, Jean-Philippe Biron1
1IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier, France.
Journal of chromatography. A
|September 10, 2024
概括
泰勒分散分析 (TDA) 现在可以确定水力动力半径 (Rh),即使是溶液吸附. 一种新的"插入前置TDA"方法和了相互作用点,提高了蛋白质和纳米颗粒的精度.
科学领域:
- 分析化学 分析化学
- 物理化学 物理化学
- 生物物理化学 生物物理化学
背景情况:
- 泰勒分散分析 (TDA) 是一种强大的技术,用于在广泛的尺寸范围内确定扩散系数 (D) 和水力动力半径 (Rh).
- 溶液吸附到分析列上可以显著损害TDA测量的重复性和可重复性.
- 虽然已经研究了吸附的理论影响,但对TDA的实验验证和缓解策略很少.
研究的目的:
- 在泰勒分散分析中解决溶液吸附的挑战.
- 引入和验证一种新的实验方法来最大限度地减少对Rh决定的吸附效应.
- 证明拟议的方法适用于挑战样品,包括蛋白质和纳米粒子的适用性.
主要方法:
- 开发了"插入前置TDA"协议,包括在剂中添加较低度的溶解物.
- 假设在化的毛细血管中缓慢吸附/脱附动力学可以通过和相互作用点来克服.
- 对蛋白质和mRNA脂质纳米粒子 (LNP) 进行插入前端TDA方法的实验应用.
主要成果:
- 插入前端的TDA协议有效地限制了溶液吸附对Rh测定的影响.
- 在疫苗配方中成功应用测量蛋白质和mRNA脂质纳米粒子 (LNP) 的Rh方法.
- 对表现出与毛细血管表面强烈相互作用的蛋白质进行TDA的可行性证明.
结论:
- 插入式TDA方法提供了一个强大的解决方案,以减轻TDA中的吸附问题.
- 这种实验方法提高了TDA对更广泛的样本和条件的可靠性和适用性.
- 预计拟议的方法对于在各种应用中实施TDA的研究人员来说是有价值的,特别是在生物物理表征中.
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