Cook Elijah, Moran Kelly, Johnson Qiaxian R, Lakhal Asmaa, Chauhan Bhanu P S
Engineered Nanomaterials Laboratory, Department of Chemistry, William Paterson University of New Jersey, 300 Pompton Road, Wayne, NJ 07470, USA.
Molecules. 2025 Mar 18;30(6):1355. doi: 10.3390/molecules30061355.
It is known that designer polymers can be used for the synthesis and stabilization of metallic nanoparticle systems, providing new, tailorable properties. In this work, we demonstrate the trifold utility of a designer polymer, trimethoxysilylpropyl-(polyethylenimine) (TMSP-PEI), providing reduction, stabilization, and protection in a single step. Our facile and unique synthesis affords gold nanoparticles with varying sizes and morphologies in a range of solvents without the need for additional reducing agents. The use of this substituted polymer was manipulated in terms of the metal-to-ligand ratio to induce changes in the nanoparticle nucleation and growth. Upon further experimental analysis, it was discovered that adjustments to not only the metal-ligand ratio but also the solvent environment produced nanoparticles with different shape and size distributions. In addition, the synthesized gold nanoparticles were investigated for their catalytic ability to reduce Eosin Y in the presence of sodium borohydride without degradation.
已知定制聚合物可用于金属纳米颗粒系统的合成与稳定，赋予其新的、可定制的性能。在这项工作中，我们展示了一种定制聚合物三甲氧基硅丙基 -（聚乙烯亚胺）（TMSP - PEI）的三重效用，它能在一步反应中实现还原、稳定和保护作用。我们简便且独特的合成方法可在一系列溶剂中制备出具有不同尺寸和形态的金纳米颗粒，无需额外的还原剂。通过控制金属与配体的比例来使用这种取代聚合物，以诱导纳米颗粒成核和生长的变化。经过进一步的实验分析发现，不仅调整金属 - 配体比例，而且改变溶剂环境，均可产生具有不同形状和尺寸分布的纳米颗粒。此外，对合成的金纳米颗粒在硼氢化钠存在下还原曙红Y且不发生降解的催化能力进行了研究。
