相关实验视频
Updated: Jul 27, 2026

08:15
Polymeric Microneedle Array Fabrication by Photolithography
Published on: November 17, 2015
12.9K
氨酸和各种氨基酸的复合物作为可溶性微针的结构材料
Miranda Oungeun1, Supason Wanichwecharungruang2
1The Petrochemistry and Polymer Science Program, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
Journal of materials chemistry. B
|September 29, 2025
概括
添加氨酸 (Arg) 添加到氨酸 (HA) 形成了强大的溶解微针,用于增强黄素的输送. 与单独使用HA相比,这些HA-Arg微针显示出更好的机械性能,更快的溶解和更好的药物负载.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 材料工程 材料工程 材料工程
背景情况:
- 氨酸 (HA) 是一种用于药物输送的生物相容聚合物.
- 开发具有增强机械性能和药物载荷能力的溶解微针具有挑战性,特别是对于黄素等疏水性药物.
- 氨基酸 (AAs) 正在被探索作为潜在的添加剂,以改善基于HA的材料.
研究的目的:
- 研究21种氨基酸作为氨酸 (HA) 添加剂的作用,用于开发溶解微针.
- 为了提高基于HA的微针的机械性能和承载能力,用于黄素的输送.
- 评估HA-AA复合材料在机械强度,溶解率,药物沉和皮肤透方面的性能.
主要方法:
- 选21种氨基酸作为氨酸 (HA) 的添加剂,度高达50%.
- 在机械性能 (Young的模量),透明度,均性和沉方面对HA-AA复合材料的表征.
- 评估黄素在水中的溶解速度和药物负载能力.
- 从选定的HA-AA复合材料制造和测试微针,用于ex vivo皮肤透和扩散.
主要成果:
- 氨酸 (Arg) 形成了一个坚固,均,透明的HA-Arg复合物,没有氨酸沉.
- 与纯 HA 相比,HA-Arg 复合物表现出更高的模和更快的水溶解.
- 含有Arg,threonine (Thr),hydroxyproline (Hyp),alanine (Ala) 和tyrosine (Tyr) 的HA制成的微针显示出良好的ex vivo皮肤透.
- 水性AAA (Arg,Thr,Hyp) 显著增加了HA的水溶性率,导致猪皮肤中的扩散速度更快.
结论:
- 氨酸是一种非常有效的添加剂,用于开发强大的溶解HA微针,具有增强的黄荷载和没有沉.
- 特定的氨基酸可以显著改善基于HA的微针的机械性能,溶解率和药物输送效率.
- 这些优化的HA-AA微针显示出通过皮肤递送疏水性药物的前景.
相关概念视频
Dehydration Synthesis
Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.Synthesis of carbohydratesSugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from one reactant...
Hydrogen Bonds
A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...

