利用香菇多糖进行钯纳米粒子的绿色合成及其催化活性和生物应用

Green synthesis of palladium nanoparticles using lentinan for catalytic activity and biological applications.

作者信息

Han Zengsheng, Dong Le, Zhang Jin, Cui Tianming, Chen Shengfu, Ma Guanglong, Guo Xiaolei, Wang Longgang

机构信息

Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China

College of Chemistry and Environmental Engineering, Shanxi Datong University Datong 037009 China.

出版信息

RSC Adv. 2019 Nov 22;9(65):38265-38270. doi: 10.1039/c9ra08051a. eCollection 2019 Nov 19.

The green synthesis of palladium nanoparticles (Pd NPs) for catalysis and biological applications has been gaining great interest. To replace complex plant extracts, lentinan (LNT) may be a good reducing and stabilizing agent. In this work, a simple and green method using LNT to reduce and stabilize palladium Pd NPs was verified. The resulting LNT stabilized palladium nanoparticles (Pd -LNT NPs) were characterized by UV-Vis spectroscopy, DLS, TEM, and XPS. The results indicated that Pd NPs inside of Pd -LNT NPs had a small size (2.35-3.32 nm). Pd -LNT NPs were stable in solution for 7 days. In addition, Pd -LNT NPs had higher catalytic activity towards the reduction of 4-nitrophenol than other catalysts. More importantly, Pd -LNT NPs had negligible cytotoxicity towards cells and showed good antioxidant activity. Taken together, the prepared Pd -LNT NPs have great potential bio-related applications.

用于催化和生物应用的钯纳米颗粒（Pd NPs）的绿色合成一直备受关注。为了替代复杂的植物提取物，香菇多糖（LNT）可能是一种良好的还原和稳定剂。在这项工作中，验证了一种使用LNT还原和稳定钯Pd NPs的简单绿色方法。通过紫外可见光谱、动态光散射、透射电子显微镜和X射线光电子能谱对所得的LNT稳定钯纳米颗粒（Pd-LNT NPs）进行了表征。结果表明，Pd-LNT NPs内部的Pd NPs尺寸较小（2.35 - 3.32 nm）。Pd-LNT NPs在溶液中稳定7天。此外，Pd-LNT NPs对4-硝基苯酚的还原具有比其他催化剂更高的催化活性。更重要的是，Pd-LNT NPs对细胞的细胞毒性可忽略不计，并表现出良好的抗氧化活性。综上所述，所制备的Pd-LNT NPs具有巨大的潜在生物相关应用。