从Chlorella vulgaris衍生的纳米颗粒的生物合成,结构特征和生物评估 乙醇提取物
Alexandra Ivanova1, Mina Todorova1, Dimitar Petrov2
1Department of Organic Chemistry, Faculty of Chemistry, University of Plovdiv, 4000 Plovdiv, Bulgaria.
Nanomaterials (Basel, Switzerland)
|February 12, 2026
概括
使用Chlorella vulgaris提取物的银纳米粒子 (AgNPs) 的绿色合成增强了抗菌和解作用. 这些新型AgNP显示出功能性食品和胃肠道治疗的潜力.
科学领域:
- 生物技术和纳米材料科学 生物技术和纳米材料科学
- 微生物学和药理学 微生物学和药理学
背景情况:
- 众所周知,Chlorella vulgaris微藻具有营养和药用特性.
- 银纳米粒子 (AgNPs) 对于它们的抗微生物和治疗应用具有兴趣.
研究的目的:
- 为了使用Chlorella vulgaris提取物合成绿色AgNP.
- 评估AgNP形成对提取物化学成分,抗微生物,抗氧化剂和解作用的影响.
- 评估这些AgNP的新型解活性.
主要方法:
- 使用乙醇Chlorella vulgaris提取物的AgNPs的绿色合成.
- 使用ATR-FTIR,TEM,XRD,DLS和泽塔潜力的AgNP的表征.
- 对各种微生物的抗微生物活性评估.
- 使用ex vivo器官浴实验对大鼠胃光滑肌肉进行解活动的评估.
主要成果:
- 合成了具有良好的体稳定性的球形AgNP (10-50nm).
- 合成AgNP改变了脂质组成,减少了叶绿素,增加了不和脂肪酸.
- 生物合成的AgNP表现出中度至强度的抗菌和抗真菌活性,特别是针对A. niger和P. chrysogenum.
- AgNPs调节了大鼠胃光滑肌收缩活动和性概况.
结论:
- 来自Chlorella vulgaris的绿色合成AgNP表现出增强的抗菌特性和改变的解活性.
- 这些AgNP显示出在功能性食品,营养药品和胃肠道治疗中应用的潜力.
相关概念视频
01:28Structures of Carboxylic Acid Derivatives
3.8K
Structure of Carboxylic Acid Derivatives
Carboxylic acid derivatives contain an acyl group attached to a heteroatom such as chlorine, oxygen, or nitrogen. The carbonyl carbon and oxygen are both sp2-hybridized with an unhybridized p orbital.
The three sp2 orbitals of the carbonyl carbon form three σ bonds, one each with the carbonyl oxygen, the α carbon, and the heteroatom, whereas the other two sp2 orbitals of the carbonyl oxygen are occupied by the lone pairs. Further, the unhybridized p...
Carboxylic acid derivatives contain an acyl group attached to a heteroatom such as chlorine, oxygen, or nitrogen. The carbonyl carbon and oxygen are both sp2-hybridized with an unhybridized p orbital.
The three sp2 orbitals of the carbonyl carbon form three σ bonds, one each with the carbonyl oxygen, the α carbon, and the heteroatom, whereas the other two sp2 orbitals of the carbonyl oxygen are occupied by the lone pairs. Further, the unhybridized p...
3.8K
01:57What is Conservation Biology?
24.4K
Conservation biology is a scientific field that focuses on the preservation of biodiversity in order to protect ecosystems while meeting the needs of the human population. Humans require properly functioning ecosystems to maintain our supply of natural resources, including food, medicines, and building materials.
24.4K
01:15Dehydration Synthesis
150.5K
Overview
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 carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...
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 carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...
150.5K
02:17Synthesis and Decomposition Reactions
38.3K
Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The reactions are accompanied by chemical and energy changes.
38.3K
02:15Protein and Protein Structure
88.9K
Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme...
A protein's shape is critical to its function. For example, an enzyme...
88.9K
02:59Biological Effects of Radiation
18.1K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
18.1K