基于聚乙烯和聚乙烯甘醇的α-Aminobisphosphonate共聚物质:一种新的机会,为Actinide复杂化
Carlos Arrambide1, Loona Ferrie2, Benedicte Prelot2
1IBMM, Univ Montpellier, CNRS, ENSCM, 34293 Montpellier, France.
Biomacromolecules
|September 7, 2023
概括
新的α-aminobisphosphonate共聚物有效地复杂化了活性化物. 这些生物相容材料具有很高的吸附能力和结合常量,这使得它们对外部身体的去污染和降低内部污染风险充满希望.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 放射化学 放射化学是指辐射化学.
背景情况:
- 乙胺污染对健康构成重大风险.
- 开发有效的净化剂至关重要.
- 现有的方法往往在效率和安全方面存在局限性.
研究的目的:
- 为了合成基于α-aminobisphosphonate的新型共聚物,用于活性化物复合.
- 评估这些共聚合物的吸附性质和热力学参数.
- 评估它们对外体的潜力去污染的作用因子.
主要方法:
- 使用聚乙烯糖醇 (PEG) 宏观启动器对e-caprolactone和α-chloro-e-caprolactone进行环开放共聚合.
- 化学修饰以引入化物部分,然后进行α-aminobisphosphonate alkyne ligand (TzBP) 的点击化学移植.
- 通过NMR和尺寸排除色谱进行表征;使用异热定位热量计 (ITC) 进行吸附研究,使用Nd (III) 和Ce (III) 作为动因子替代物.
主要成果:
- 成功合成了三种共聚合物 (CP8,CP9,CP10) 具有不同的α-氨基双酸盐组比率 (7%,18%,38%).
- 吸附能力随着双酸盐组数量的增加而增加,CP9和CP10显示了对Nd (III) 和Ce (III) 的高容量.
- CP9表现出最高的结合常数 (7000 M-1).
结论:
- 合成的α-aminobisphosphonate共聚合物显示出出色的动因酸复合能力.
- 它们的高吸附效率和生物相容性使得它们适合用于外部身体的活性化物去污染.
- 这些材料提供了一个有希望的策略,以尽量减少暴露后的内部污染.
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