Gold nanoparticles with different diameters of the metal core are obtained by reducing HAuCl₄ with hydrazine in reverse emulsions stabilized by Span 80 (9.4 ± 0.4 nm), AOT (6.1 ± 0.2 nm), and an equimolar Span 80 + AOT mixture (10.0 ± 0.2 nm). After synthesis, only the nanoparticles in the AOT solutions (ζ potential 16.8 ± 0.9 mV) display electrophoretic mobility. Nanoparticles in the form of a small-volume liquid phase concentrate are also separated from excess reagents and by-products by concentration (non-aqueous electrophoresis, or centrifugation) and diluted with micellar solutions (Span 80, AOT, and Span 80 + AOT mixture) or pure solvents ( n -decane and chloroform). As a result, 24 organosols are obtained, including ones with positive (11), negative (8), and uncharged (5) nanoparticles. Of particular potential interest are organosols that have the same macrostructure in terms of surfactants, but with oppositely charged gold nanoparticles (7 pairs of organosols are obtained).

中文翻译：

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在 正 癸烷中改变Span 80，AOT和Span 80 + AOT胶束系统中金纳米粒子的表面 电荷

具有不同直径的金属芯的金纳米颗粒通过降低的HAuCl得到₄与由司盘80（9.4±0.4 nm）时，AOT（6.1±0.2 nm）的稳定的可逆的乳化液肼，和等摩尔司盘80 + AOT混合物（10.0± 0.2 nm）。合成后，只有AOT溶液（ζ电位16.8±0.9 mV）中的纳米颗粒显示出电泳迁移率。小分子液相浓缩物形式的纳米颗粒也可以通过浓缩（非水电泳或离心）与过量的试剂和副产物分离，并用胶束溶液（Span 80，AOT和Span 80 + AOT混合物）稀释）或纯溶剂（ n -癸烷和氯仿）。结果，获得了24种有机溶胶，包括具有正（11），负（8）和不带电（5）纳米颗粒的有机溶胶。特别潜在的兴趣是在表面活性剂方面具有相同宏观结构但带相反电荷的金纳米颗粒的有机溶胶（可获得7对有机溶胶）。