通过共同晶体的形成,增强了高透的物理和化学稳定性
Bingqing Zhu1, Mengyuan Xia2, Zhenfeng Ding2
1Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
International journal of pharmaceutics
|October 4, 2023
概括
同结晶将橄中强有力的抗氧化剂氧醇 (HT) 转化为稳定的固体. 这种新的方法增强了HT的功能.
科学领域:
- 材料科学 材料科学 材料科学
- 制药化学 制药化学 制药化学
- 自然产品化学 自然产品化学
背景情况:
- 氧醇 (HT) 是一种强大的天然抗氧化剂,来源于橄树.
- 由于HT的液态形式和对氧化的敏感性限制了其实际应用.
- 目前的方法,如封装,不能足够提高HT的化学稳定性.
研究的目的:
- 开发一种有效的战略,以提高氧醇的稳定性和处理能力.
- 作为一种方法来克服HT的高度性和不良化学稳定性的方法,研究共结晶.
- 为了评估新型氧醇共晶的特性.
主要方法:
- 形成和描述四个新的氧醇共晶体.
- 分析共晶结构内的分子间相互作用.
- 与纯HT和其他形式相比,点,湿度和化学稳定性的评估.
主要成果:
- 同结晶显著增加了点,显著降低了HT的湿度,产生了固体形式.
- 与贝他因 (HT-BET) 和尼古丁胺 (HT-NIC) 结合的氧铁合晶体表现出卓越的化学稳定性.
- 这些共晶体的增强稳定性超过了纯HT,橄提取物和封装HT的稳定性.
结论:
- 同结晶是一种高效的稳定氧醇的策略.
- 由此产生的固体氧醇共晶体提供了更好的处理和保质期.
- 这种方法为克服氧醇在各种行业中的应用局限性提供了一个有希望的解决方案.
相关概念视频
Aldehydes and Ketones with Water: Hydrate Formation
3.3K
An oxygen-based nucleophile, like water, can undergo addition reactions with aldehydes and ketones. The reaction leads to the formation of hydrates, also referred to as 1,1-diols or geminal diols.
The formation of hydrates is a reversible reaction. Hydrate formation is influenced by steric and electronic factors accompanying the alkyl substituents on the carbonyl group: The rate of hydrate formation increases with a decrease in the number of alkyl groups attached to the carbonyl carbon. Hence,...
The formation of hydrates is a reversible reaction. Hydrate formation is influenced by steric and electronic factors accompanying the alkyl substituents on the carbonyl group: The rate of hydrate formation increases with a decrease in the number of alkyl groups attached to the carbonyl carbon. Hence,...
3.3K
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
10.3K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
10.3K
Colloidal precipitates
601
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
601
Regioselectivity and Stereochemistry of Acid-Catalyzed Hydration
8.5K
The rate of acid-catalyzed hydration of alkenes depends on the alkene's structure, as the presence of alkyl substituents at the double bond can significantly influence the rate.
8.5K
Complexation Equilibria: Factors Influencing Stability of Complexes
387
In complexation reactions, metal cations are the electron pair acceptors, and the ligands are the electron pair donors. The stability of the metal complexes depends primarily on the complexing ability of the central metal ion and the nature of the ligands. Generally, the complexing ability of the metal ion depends on the size and charge of the ion. As the metal ion size increases, the stability of the metal complexes decreases, provided that the valency of the metal ion and the ligands remain...
387
Preparation and Reactions of Thiols
6.3K
Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane reacts with sodium hydrosulfide to give butanethiol.
6.3K


