基于酸盐的复合材料含有甲基酸与甲基酸交联的奇托及其Cu (II) 复合物,作为一种无抗生素的抗菌水凝敷料,具有增强的细胞相容性
Khodayar Gholivand1, Mahnaz Mohammadpour1, Hossein Derakhshankhah2
1Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran, Iran.
International journal of biological macromolecules
|October 9, 2023
概括
新的酸盐-酸盐复合液凝显示出作为先进的伤口带的前景. 这些材料具有可调节的特性和显著的抗菌作用,可能成为有效的无抗生素伤口愈合解决方案.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 伤口愈合技术 伤口愈合技术
背景情况:
- 基于基托桑和酸盐的水凝因其在皮肤病变管理方面的潜力而得到认可.
- 开发具有增强性质的先进伤口包裹对于有效的伤口愈合至关重要.
研究的目的:
- 探索一系列新型的甲基酸盐 (Alg) 复合水凝,其中包括交联酸盐 (CSPN),用于伤口包应用.
- 研究这些复合水凝的合成,表征和性能,包括它们的抗菌功效.
主要方法:
- 交联酸盐 (CSPN) 和其Cu (II) 复合物的合成,然后与离子进行离子交联,以与酸盐形成水凝.
- 使用FTIR,XRD,风学技术,热分析 (TGA,DSC) 和基于DFT的结构优化进行表征.
- 评估水凝的特性,包括孔隙结构,胀,降解,蛋白质吸收,药物输送,细胞相容性 (MTT测定) 和抗菌活性.
主要成果:
- 分子被有效地吸附在CSPN和CSPN-Cu颗粒上,影响水凝的特性.
- 可调节的孔径大小,胀,降解和蛋白质吸收通过不同的CSPN和CSPN-Cu含量来实现.
- 开发的水凝表现出良好的细胞兼容性和显著的抗菌活性,由于Cu (II) 的存在,与抗生素包裹相似.
- 药物捕获和释放研究显示了药物输送应用的潜力.
结论:
- 合成的基于Alg的复合水凝在伤口愈合应用中表现出有前途的特性.
- 这些水凝由于其固有的抗菌特性,为伤口带提供了潜在的无抗生素替代品.
- 这些材料的可调和可生物降解性质表明,在先进的伤口护理中,未来将是光明的.
相关概念视频
Colloidal precipitates
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
Ferrocement
Ferro-cement is a distinctive construction material that represents an innovative variant of reinforced concrete, characterized by its unique composition and the method by which it is formed. Unlike standard reinforced concrete, which relies on larger steel bars for reinforcement, ferro-cement utilizes densely packed layers of mesh or fine rods, fully encased in cement mortar. This composition allows for the creation of structures that are significantly thinner and more flexible than their...
Superplasticizers
Superplasticizers are advanced admixtures that enhance the workability of concrete by lowering the water content without compromising the strength of the material. These substances are highly effective water reducers, improving concrete flow, making it easier to work with, and enabling concrete to reach inaccessible areas or densely reinforced sections without mechanical vibration. The key components in superplasticizers are either sulfonated melamine or naphthalene formaldehyde condensates,...
Waterproofing and Anti-Bacterial Admixtures in Concrete
Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
Waterproofing admixtures render concrete hydrophobic,...
Waterproofing admixtures render concrete hydrophobic,...
Corrosion of Reinforcement
The corrosion of steel reinforcement within concrete is a process influenced by the material's inherent properties and external factors. The high pH level of around 13, provided by calcium hydroxide present in concrete, initially protects the steel reinforcement by promoting the formation of a passive iron oxide layer on its surface.
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
Peptidoglycan Synthesis
Structure of PeptidoglycanPeptidoglycan is a vital structural component of the bacterial cell wall, providing mechanical strength and shape to the cell. It consists of repeating units of two sugars—N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM)—linked by β-1,4 glycosidic bonds. These sugar chains are cross-linked by short peptide chains, forming a mesh-like polymer that surrounds the bacterial plasma membrane.Cytoplasmic Phase – Precursor SynthesisPeptidoglycan biosynthesis begins in...


