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Muhammad Farooq1, Charlotte Zborowski1, Paula A Nousiainen1
1Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, 02150 Espoo, Finland.
Langmuir : the ACS journal of surfaces and colloids
|July 15, 2025
概括
研究人员使用自组装方法从树皮提取物中制造出功能性纳米材料. 这些可持续的纳米颗粒具有可调节的疏水和抗微生物特性,适用于先进的涂层应用.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 生物质利用生物质的利用
背景情况:
- 自组装是开发功能性纳米材料的关键策略.
- 可再生生物质为先进材料提供可持续的前体.
- 木树皮提取物,苏贝林化物 (SH) 和贝素分离物 (BF) 是丰富的自然资源.
研究的目的:
- 研究木树皮提取物 (SH和BF) 自组装成纳米粒子的过程.
- 通过溶剂选择控制纳米粒子形态和特性.
- 评估合成纳米颗粒的疏水和抗微生物潜力.
主要方法:
- 用各种有机溶剂和水作为抗溶剂进行溶剂倒置自组装.
- 场发射扫描电子显微镜 (FESEM) 用于形态分析.
- 用于结晶性评估的X射线衍射 (XRD).
- 测量水接触角度,用于评估表面的疏水性.
- 抗微生物测定对 * S. aureus *.
主要成果:
- SH自组装成棒状纳米粒子 (77-587 nm),而BF形成球形纳米粒子 (14-74 nm).
- SH和BF的联合组装产生了独特的星形混合纳米粒子.
- 纳米粒子表现出显著的疏水性,BF晶体达到超疏水性 (162°±8°).
- 观察到对*S. aureus*的抗微生物活性,SH纳米颗粒显示出最高的疗效.
- 自组装增强了SH和BF的结晶性,改善了功能性质.
结论:
- 可调节的纳米粒子形态和特性可以通过自组装从木树皮提取物中获得.
- 这些生物质衍生纳米颗粒显示出有前途的疏水和抗微生物功能.
- 开发的自组装方法为生产功能性涂料等应用的先进纳米材料提供了一个可持续的途径.
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