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Colloidal precipitates01:09

Colloidal precipitates

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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...
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Updated: Jul 27, 2025

Generation of Zerovalent Metal Core Nanoparticles Using n-2-aminoethyl-3-aminosilanetriol
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通过使用合成的银纳米粒子.

L Y Mohsen1, M Fadhil Alsaffar2, R Ahmed Lilo1

  • 1Department of Biology, College of Science, University of Babylon, Babylon, Iraq.

Archives of Razi Institute
|June 5, 2023
PubMed
概括
此摘要是机器生成的。

这项研究利用Trichophyton rubrum真菌生物合成银纳米粒子 (AgNPs). 这些AgNP表现出显著的抗真菌活性,以度依赖的方式抑制真菌生长.

关键词:
评估抗真菌药物xx银纳米粒子 银纳米粒子三花 (Trichophyton rubrum) 是一种的植物.

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科学领域:

  • 微生物学 微生物学
  • 纳米技术纳米技术
  • 菌类学 菌类学是指菌类学.

背景情况:

  • 纳米材料的生物合成为传统化学方法提供了一个可持续的替代方案.
  • 菌,特别是皮肤植物,如Trichophyton rubrum,越来越多地被探索它们在纳米粒子合成中的潜力.

研究的目的:

  • 通过使用真菌Trichophyton rubrum研究银纳米颗粒 (AgNPs) 的生物合成.
  • 描述合成的AgNP并评估它们的抗真菌功效.

主要方法:

  • 在矿物盐介质中培养了Trichophyton rubrum菌株5-7天.
  • 无细胞过剂与1毫米的银酸盐 (AgNO3) 用于AgNP生物合成.
  • 扫描电子显微镜 (SEM) 用于表征和尺寸确定.

主要成果:

  • 颜色变化为红色浅棕色表明Ag+离子减少和AgNP在72小时内形成.
  • SEM证实了球形AgNP的存在,平均尺寸约为100nm.
  • 银纳米颗粒表现出度依赖的抗真菌活性,在150ppm时观察到显著的生长减少.

结论:

  • 银纳米颗粒的绿色合成Trichophyton rubrum是一个有效的代理.
  • 生物合成的银纳米颗粒具有强大的抗真菌特性,表明潜在的治疗应用.