长期稳定和储存基于的酸通过氨酸丰富序列和多网络的长期稳定和储存
Mohammad Souri1, Moumita Halder1, Lubna Amer2
1Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, San Diego, California 92093, United States.
Nano letters
|November 25, 2025
概括
工程化协生物现在耐解冷凝. 这一突破稳定了纳米体,用于药物输送和再生医学,而不需要冷藏.
科学领域:
- 生物材料科学 生物材料科学
- 超分子化学 超分子化学
- 纳米技术 纳米技术
背景情况:
- 基于的协生物提供生物相容性和可性.
- 它们固有的不稳定性限制了应用,特别是那些需要储存或冷干燥的应用.
- 商业应用面临的挑战是低温储存和冷化.
研究的目的:
- 为了设计稳定的基于的纳米,具有冷解耐受性.
- 在各种压力条件下研究同类动物的稳定机制.
- 为了实现可扩展的应用程序,而无需冷链要求.
主要方法:
- 芳香型氨酸残留物被纳入寡 [(YR) 2R10 + (YR) 2D10].
- 使用酸 (TA) 强化类协体.
- 在离子强度,pH值,温度和冷干燥/再水应激下评估同体稳定性.
主要成果:
- 设计的纳米虫体在各种条件下 (pH 3-10,10-100 mM离子强度,25-80 °C) 显示出了显著的稳定性.
- 在冷干燥和再水后,同类植物保持了结构,颗粒数 (~10^7颗/毫升),大小 (<500纳米) 和形态.
- 所有贡献的相互作用 (π-π堆叠,-π,键,静电) 对于冷化恢复至关重要.
结论:
- 这项研究介绍了第一个基于的共体系统,表现出溶解化的耐受性.
- 开发的纳米coacervates是坚固的,适合可扩展的应用.
- 这一创新消除了在药物输送,生物稳定和再生医学中对冷链储存的需求.
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