通过诱导脱水策略在Mannitol@CaCl2金属有机框架中产生晶体缺陷,以增强辅助剂的机械性能
Wen Peng1, Zezhi Lin2, Wei Cao2
1School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China; Changzhou Siyao Pharmaceuticals Co., LTD, Chang Zhou, Jiangsu 213018, PR China.
International journal of pharmaceutics
|January 23, 2024
概括
晶体缺陷工程改善了曼尼托尔@CaCl2金属有机框架 (MOF) 的机械性能. 这种缺陷工程策略增强了MOF的可分片性,使它们适合直接压缩的制药辅助剂.
科学领域:
- 材料科学 材料科学 材料科学
- 制药科学 制药科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 固体药物辅助剂的机械性能对于药物片的生产和质量至关重要.
- 金属有机框架 (MOFs) 具有作为制药辅助剂的潜力.
- 曼尼托尔 (Mannitol@CaCl2 MOF) 之前在我们的实验室中进行了设计和制备.
研究的目的:
- 探索晶体缺陷工程,以改善曼尼@CaCl2 MOF的机械性能.
- 阐明缺陷增强机械性能的机制.
- 评估缺陷工程MOF作为直接压缩助剂的潜力.
主要方法:
- 使用"诱导脱水策略"在曼尼托尔@CaCl2 MOF (DEMOF) 中创建晶体缺陷.
- 描述技术包括SEM,TEM,HRTEM,PXRD,FTIR,DSC-TGA和N2吸附-脱附.
- 机械性质使用可表化形状,纳米印和DFT计算进行了评估.
主要成果:
- 诱导脱水策略成功地在DEMOF中引入了格子空隙和宏观结构缺陷,同时保留了MOF结构.
- 与原来的MOF相比,DEMOF在粉末水平上表现出明显改善的机械性能.
- DEMOF表现出增强的可塑性,降低的脆性和增强的压缩性,导致具有更高抗拉强度的平板电脑符合直接压缩标准.
结论:
- 晶体缺陷工程是一种可行的策略,用于调整MOFs的机械性能.
- 曼尼托尔@CaCl2 DEMOF显示出作为一种新的直接压缩制药辅助剂的巨大潜力.
- 这些发现强调了控制晶体缺陷对于药品中先进材料应用的重要性.
相关概念视频
Crystal Growth: Principles of Crystallization
1.9K
Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...
1.9K
Crystal Field Theory - Octahedral Complexes
26.5K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
26.5K


