Highly stable gold nanoparticles in an aqueous solution without any stabilizer prepared by a solution plasma process evaluated through capillary zone electrophoresis
Highly stable gold nanoparticles in an aqueous solution without any stabilizer prepared by a solution plasma process evaluated through capillary zone electrophoresis
复制标题
通过毛细管区带电泳评估通过溶液等离子体工艺制备的不含任何稳定剂的水溶液中高度稳定的金纳米颗粒
DOI：
10.1007/s44211-022-00149-9
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发表时间：
2022
影响因子：
1.6
通讯作者：
Matsuda Naoki
中科院分区：
文献类型：
--
作者：
Takayanagi Toshio;Miyake Koji;Iwasaki Sohta;Uehara Daiki;Mizuguchi Hitoshi;Okabe Hirotaka;Matsuda Naoki
在H2 O2存在下，通过溶液等离子体工艺制备金纳米颗粒（AuNP），并且将它们分散在水溶液中而不使用任何通常使用的稳定剂。通过毛细管区带电泳（CZE）评价AuNP在水溶液中的分散稳定性。一个阴离子宽峰检测与金纳米粒子的CZE的基础上，其广泛的变化的大小和净电荷。宽峰还表明AuNP良好地分散在水溶液中。从长期分散、盐浓度和有机共溶剂的观点评价AuNP的分散稳定性。归因于分散的AuNP的阴离子宽峰从制备物成功地检测到至少55周，其中聚集体的发射信号较少。AuNP也很好地分散在NaCl水溶液中，其浓度高达30 mmol L-1，以及乙醇共溶剂高达40%（v/v）。通过溶液等离子体工艺制备的AuNP被证明在水溶液中高度稳定。图形摘要
Gold nanoparticles (AuNP) were prepared by a solution plasma process in the presence of H2O2, and they were dispersed in an aqueous solution without any stabilizer generally used. The dispersion stability of the AuNP in an aqueous solution was evaluated by capillary zone electrophoresis (CZE). An anionic broad peak was detected with the AuNP by CZE based on its wide variations in size and net charge. The broad peak also suggests that the AuNP were well dispersed in an aqueous solution. The dispersion stability of AuNP was evaluated from the viewpoints of long-term dispersion, salt concentration, and organic co-solvent. The anionic broad peak attributed to the dispersed AuNP was successfully detected for at least 55 weeks from the preparation with less shot signals of the aggregates. The AuNP was also well dispersed in aqueous NaCl solutions with its concentrations up to 30 mmol L−1, as well as with ethanol co-solvent up to 40%(v/v). The AuNP prepared by the solution plasma process was proved to be highly stable in an aqueous solution.Graphical abstract