聚酸盐的氧化 - - 一个被低估的降解途径?
Johanna Weber1, Julia Buske2, Karsten Mäder1
1Martin-Luther-University Halle-Wittenberg, Institute of Pharmacy, Faculty of Biosciences, Wolfgang-Langenbeck-Strasse 4, Halle (Saale) 06120, Germany.
International journal of pharmaceutics: X
|September 8, 2023
概括
聚酸盐 (PS) 对生物稳定性至关重要,但可以通过氧化降解. 了解聚酸盐20和80的氧化降解途径是防止生物不稳定性和确保产品质量的关键.
科学领域:
- 制药科学 制药科学
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 像聚酸盐 (PS) 这样的非离子表面活性剂是生物配方中的重要辅助成分,防止变质和颗粒形成.
- 尽管具有实用性,但聚酸盐容易降解,影响生物稳定性,有效性和安全性.
- 聚酸盐降解途径包括水解和氧化,受制造工艺和原材料的影响.
研究的目的:
- 审查当前关于聚酸盐降解的知识,特别关注氧化途径.
- 总结氧化媒介聚酸盐降解的降解产品和特征.
- 为了比较聚酸盐20和80在氧化稳定性和降解方面.
主要方法:
- 文献综述侧重于聚酸盐降解机制,特别是氧化.
- 分析导致氧化降解的因素,包括光,金属痕迹,过氧化物和温度.
- 聚酸盐20和80在各种应力条件下的稳定性的比较.
主要成果:
- 聚酸盐的氧化降解可能是由制造和储存过程中遇到的各种因素引发的.
- 特定的降解产品和特征在聚酸盐等级和类型之间存在差异,影响其性能.
- 了解激素诱导的氧化降解途径为缓解策略提供了洞察力.
结论:
- 氧化降解是生物配方中聚酸盐稳定性的重要问题.
- 对聚酸盐降解途径和产品的详细知识对于开发有效的稳定策略至关重要.
- 建议仔细选择聚酸盐质量,缓冲条件和储存,并进行彻底的风险效益分析.
相关概念视频
Oxidation of Alcohols
13.3K
In this lesson, the oxidation of alcohols is discussed in depth. The various reagents used for oxidation of primary and secondary alcohols are detailed, and their mechanism of action is provided.
The process of oxidation in a chemical reaction is observed in any of the three forms:
The process of oxidation in a chemical reaction is observed in any of the three forms:
13.3K
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate
11.8K
Alkenes can be dihydroxylated using potassium permanganate. The method encompasses the reaction of an alkene with a cold, dilute solution of potassium permanganate under basic conditions to form a cis-diol along with a brown precipitate of manganese dioxide.
11.8K
Oxidative Cleavage of Alkenes: Ozonolysis
10.6K
In ozonolysis, ozone is used to cleave a carbon–carbon double bond to form aldehydes and ketones, or carboxylic acids, depending on the work-up.
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
10.6K
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
Radical Autoxidation
2.2K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
2.2K
Oxidation of Phenols to Quinones
3.1K
In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
3.1K


