用常见的草来开发生物活性材料的应用
Alina Ioana Lupuliasa1, Anda-Maria Baroi2,3, Sorin Marius Avramescu4,5
1Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania.
Plants (Basel, Switzerland)
|April 13, 2024
概括
伊索普和鱼提取物被用来通过绿色合成制造银纳米粒子. 微波辅助提取产生了具有显著生物活性的强有力的抗氧化纳米颗粒,显示了纳米技术应用的前景.
科学领域:
- 植物化学 植物化学
- 纳米技术纳米技术
- 生物技术是生物技术.
背景情况:
- 芝麻 (Hyssopus officinalis L.) 和菜 (Origanum vulgare L.) 具有传统的抗菌性能.
- 这些植物是纳米技术的可行候选者,特别是金属纳米颗粒的绿色合成.
研究的目的:
- 为了评估芝麻和鱼的银纳米粒子植物合成.
- 评估植物提取物和合成纳米粒子的生物活性 (抗氧化剂,细胞活力,炎症,细胞毒性).
主要方法:
- 采用了两种提取方法:经典温度提取和微波辅助提取.
- 使用高性能液体染色学 (HPLC) 分析了植物化学成分.
- 纳米粒子使用X射线衍射 (XRD) 和传输电子显微镜 (TEM) 进行了表征.
主要成果:
- 与经典提取相比,微波辅助提取产生了较高的总化合物 (TPC).
- Oregano 提取物始终显示TPC比石提取物更高.
- 最小的纳米粒子 (2.94纳米晶体体尺寸通过XRD,10纳米平均直径通过TEM) 用鱼微波提取物产生.
- 菜微波取物中的纳米粒子表现出显著的抗氧化特性 (>60%的DPPH抑制).
- 在低度下,细胞活力不受影响,与氧化水平相关.
- 草提取物纳米颗粒对细胞膜完整性没有影响,与增加LDH的其他样本不同.
结论:
- 微波辅助提取是优越的,以获得丰富的植物化学物质提取物从伊索普和菜纳米粒子合成.
- Oregano 微波取物对于生产小的,高度抗氧化银纳米颗粒特别有效.
- 合成的纳米颗粒显示出有前途的生物活性,为治疗和纳米医学应用提供了进一步的研究.
相关概念视频
Defenses Against Pathogens and Herbivores
30.1K
Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
30.1K
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
313
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
313
iChip
78
The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...
78


