胺素功能化聚烯酸纳米纤维,通过溶液吹旋转产生,用于皮肤莱什曼病治疗中控制释放
Nerea Guembe-Michel1, Paul Nguewa2, Gustavo González-Gaitano2
1Department of Chemistry, School of Science, University of Navarra, 31080 Pamplona, Spain.
Polymers
|January 28, 2026
概括
研究人员开发了使用溶液吹来治疗皮肤莱什曼病的胺胺载聚烯酸纳米纤维. 这种创新的局部递送系统显示了持续的药物释放和显著的莱什曼尼cidal活动.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 寄生虫学的寄生虫学
背景情况:
- 莱什曼病是一种被忽视的疾病,药物耐药性越来越强.
- 目前对皮肤莱什曼病的治疗方法有限.
- 新型药物输送系统对于有效治疗至关重要.
研究的目的:
- 使用溶液吹来制造带有胺素的聚烯酸纳米纤维.
- 评估这个系统作为皮肤莱什曼病的局部输送方法.
- 为了调查PTM装载纳米纤维的药物释放特征和leishmanicidal活性.
主要方法:
- 溶液吹 (SBS) 被用于制造聚烯酸 (PCL) 纳米纤维地毯.
- 药物释放研究使用纳米纤维直径的SEM分析进行并建模.
- 在FTIR和XRD分析中,研究药物-聚合物相互作用.
- 对Leishmanicidal活性进行了测试,针对*Leishmania major*的前列腺炎.
主要成果:
- 同质的PCL纳米纤维地毯通过SBS.成功生产.
- 随着时间的推移,观察到持续的胺胺 (PTM) 释放.
- 在低负荷时,PTM分子分散,在高负荷时显示部分结晶性.
- 释放的PTM显示出显著的莱什曼杀虫活性和调节的寄生虫基因表达.
结论:
- 由SBS制造的PCL纳米纤维提供了一个有前途的局部输送系统,用于PTM对抗皮肤莱什曼病.
- 控制释放机制提高了治疗疗效.
- 这个平台可以适应用于为各种皮肤感染提供多种药物.
相关概念视频
01:19Composition of Polyprotic Acid Solutions as a Function of pH
862
Polyprotic acids of the type H2M constitute two ionizable protons. As a result, on titration with a base, they exhibit two equivalence points in the titration curve. During titration, the species H2M, HM−, and M2− will be present in the solution at different points. The fractions of H2M, HM−, and M2− present at the various instances of the titration are denoted by α0, α1, and α2, respectively.
A graph with the alpha values is plotted against the volume of...
A graph with the alpha values is plotted against the volume of...
862
01:21Transfer Function in Control Systems
1.6K
The transfer function is a fundamental concept in the analysis and design of linear time-invariant (LTI) systems. It offers a concise way to understand how a system responds to different inputs in the frequency domain. It serves as a bridge between the time-domain differential equations that describe system dynamics and the frequency-domain representation that facilitates easier manipulation and analysis.
To derive the transfer function, consider a general nth-order linear time-invariant...
To derive the transfer function, consider a general nth-order linear time-invariant...
1.6K
01:08NMR Spectroscopy: Spin–Spin Coupling
3.2K
The spin state of an NMR-active nucleus can have a slight effect on its immediate electronic environment. This effect propagates through the intervening bonds and affects the electronic environments of NMR-active nuclei up to three bonds away; occasionally, even farther. This phenomenon is called spin–spin coupling or J-coupling. Coupling interactions are mutual and result in small changes in the absorption frequencies of both nuclei involved. While nuclei of the same element are involved...
3.2K
01:17Spin–Spin Coupling: One-Bond Coupling
1.5K
Coupling interactions are strongest between NMR-active nuclei bonded to each other, where spin information can be transmitted directly through the pair of bonding electrons. While nuclei polarize their electrons to the opposite spins, the bonding electron pair has opposite spins. Configurations with antiparallel nuclear spins are expected to be lower in energy. When coupling makes antiparallel states more favorable, J is considered to have a positive value. The one-bond coupling constant, 1J,...
1.5K
01:08Spin–Spin Coupling Constant: Overview
1.5K
In bromoethane, the three methyl protons are coupled to the two methylene protons that are three bonds away. In accordance with the n+1 rule, the signal from the methyl protons is split into three peaks with 1:2:1 relative intensities. The methylene protons appear as a quartet, with the relative intensities of 1:3:3:1.
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must...
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must...
1.5K
02:39Enthalpy of Solution
30.4K
There are two criteria that favor, but do not guarantee, the spontaneous formation of a solution:
30.4K