SiO2@{氨酸}杂交物的抗氧化活性:一个可比的OH-激素和DPPH-激素清理研究
Annita Theofanous1, George Theofilou2, Yiannis Deligiannakis2
1Laboratory of Biomimetic Catalysis & Hybrid Materials, Department of Chemistry, University of Ioannina, Panepistimioupoli, 45110 Ioannina, Greece.
Langmuir : the ACS journal of surfaces and colloids
|September 24, 2025
概括
结合蛋白与二氧化 (SiO2) 颗粒的新混合材料显示了增强的抗氧化特性. 对SiO2的最佳10%的氨酸负载与单独的氨酸或更高负载相比,提供了优越的基因清除.
科学领域:
- 材料科学 材料科学 材料科学
- 生物化学 生物化学
- 纳米技术纳米技术
背景情况:
- 素是一种丝蛋白质,具有抗氧化特性.
- (SiO2) 纳米粒子为材料功能化提供了一个多功能平台.
- 开发有效的抗氧化物质对于对抗氧化应激至关重要.
研究的目的:
- 为了合成和描述SiO2@sericin混合材料.
- 评估这些杂交物对DPPH和基激素的抗氧化活性.
- 为了研究血清素负载对抗氧化剂效率的影响.
主要方法:
- 在SiO2纳米粒子上对素进行共价接种.
- 合成了两种混合变种,分别含有10%和20%的素.
- 使用DPPH和基清除试验进行抗氧化活性评估.
- 使用IR,拉曼,BET和DLS技术进行表征.
主要成果:
- SiO2@sericin杂交物表现出明显更高的抗氧化活性,而不是水性sericin.
- 10%的素负载 ({SiO2@sericin_10}) 显示出最佳的基因清除.
- 较高的血清素负载 (20%) 导致由于硬质障碍和功能组的有限可访问性而导致活动减少.
- 素在SiO2上的表面地形取决于度,影响抗氧化剂的有效性.
结论:
- 素对SiO2的共价接种是一种有效的策略,可以增强抗氧化特性.
- 优化素负载对于最大限度地提高激素清除效率至关重要.
- 这些混合材料显示出作为各种应用的先进抗氧化剂的前景.
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