切莱特功能化的磁性微粒用于对青的隔离
Kang Du1, Pan Liao2, Shengsong Yang1
1Department of Chemistry, University of Pennsylvania Philadelphia PA 19104 USA ivandmo@sas.upenn.edu.
Nanoscale advances
|July 27, 2023
概括
新的磁性微粒有效地去除了导致听力损失的化疗药物西斯丁. 这种纳米技术提供了一种潜在的解决方案,可以预防癌症患者的西斯胺诱导的耳毒性.
科学领域:
- 纳米技术纳米技术
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
背景情况:
- 西斯普拉丁化疗可能会导致永久性听力损失,因为它在内耳积累.
- 西斯丁的耳毒性对癌症患者的护理和生活质量构成重大挑战.
研究的目的:
- 从水溶液中开发磁性微粒来隔离有毒的cisplatin.
- 调查磁性微手术在消除耳耳毒素方面的潜力.
主要方法:
- 开发了100纳米磁性微粒,其功能与离子S丰富的配体.
- 在微粒芯内封装超偏磁铁氧化物纳米粒子.
- 使用离心器过和磁性提取量化西斯普拉丁封存的量化.
主要成果:
- 磁性微粒证明了高效的西斯普拉丁封存,通过不同的方法从溶液中去除超过95%和50%.
- 负电荷的状表面吸引了化物种,这对于封存至关重要.
- 磁性微粒显示出优异的生物相容性,对内耳毛细胞完整性的影响微不足道.
结论:
- 使用纳米状材料成功地磁性封存基于的耳毒药物.
- 强调了微粒-水接口特性对于金属-药用纳米材料开发的重要性.
相关概念视频
Extraction: Advanced Methods
488
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
488
Complexation Equilibria: The Chelate Effect
556
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
556


