Silver nanoparticles were synthesized inside the small plates of transparent polymer medium by reduction of silver cations. The difference in morphology and sizes of nanoparticles synthesized by chemical, photochemical and thermal reduction was revealed, which depends both on the component ratio of the mixture and on the reduction time for the specific component ratio The polymethacrylate matrix itself acts as the stabilizing agent. A colorimetric sensor based on polymethacrylate matrix and silver nanoparticles was developed for the detection of hydrogen peroxide. The optical properties of the sensor were characterized by spectrophotometer using the surface plasmon resonance. A colorimetric sensor with nanoparticles undergoing to thermal reduction showed a quick result for the determination of hydrogen peroxide in the range 0.2–4.4 mM with a detection limit 0.1 mM.

中文翻译：

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固体聚甲基丙烯酸酯基质中稳定的银纳米颗粒的合成方法比较


通过还原银阳离子，在透明聚合物介质的小板内合成银纳米颗粒。揭示了通过化学、光化学和热还原合成的纳米颗粒的形态和尺寸的差异，这取决于混合物的组分比例和特定组分比例的还原时间。聚甲基丙烯酸酯基体本身充当稳定剂。开发了一种基于聚甲基丙烯酸酯基质和银纳米颗粒的比色传感器，用于检测过氧化氢。通过使用表面等离子体共振的分光光度计来表征传感器的光学特性。具有经过热还原的纳米颗粒的比色传感器可快速测定 0.2–4.4 mM 范围内的过氧化氢，检测限为 0.1 mM。