A.M. Butlerov' Chemistry Institute of Kazan Federal University, 18 Kremlevskaya Street, Kazan 420008, Russia.
Int J Mol Sci. 2020 Feb 20;21(4):1425. doi: 10.3390/ijms21041425.
Silver nanoparticles (AgNPs) are an attractive alternative to plasmonic gold nanoparticles. The relative cheapness and redox stability determine the growing interest of researchers in obtaining selective plasmonic and electrochemical (bio)sensors based on silver nanoparticles. The controlled synthesis of metal nanoparticles of a defined morphology is a nontrivial task, important for such fields as biochemistry, catalysis, biosensors and microelectronics. Cyclophanes are well known for their great receptor properties and are of particular interest in the creation of metal nanoparticles due to a variety of cyclophane 3D structures and unique redox abilities. Silver ion-based supramolecular assemblies are attractive due to the possibility of reduction by "soft" reducing agents as well as being accessible precursors for silver nanoparticles of predefined morphology, which are promising for implementation in plasmonic sensors. For this purpose, the chemistry of cyclophanes offers a whole arsenal of approaches: exocyclic ion coordination, association, stabilization of the growth centers of metal nanoparticles, as well as in reduction of silver ions. Thus, this review presents the recent advances in the synthesis and stabilization of Ag (0) nanoparticles based on self-assembly of associates with Ag (I) ions with the participation of bulk platforms of cyclophanes (resorcin[4]arenes, (thia)calix[n]arenes, pillar[n]arenes).
银纳米粒子（AgNPs）是等离子体金纳米粒子的一种有吸引力的替代品。相对便宜和氧化还原稳定性决定了研究人员对基于银纳米粒子获得选择性等离子体和电化学（生物）传感器的兴趣日益增加。具有规定形态的金属纳米粒子的可控合成是一项具有挑战性的任务，对于生物化学、催化、生物传感器和微电子等领域非常重要。环芳烷以其优异的受体性能而闻名，由于环芳烷的多种 3D 结构和独特的氧化还原能力，在金属纳米粒子的制备中特别有趣。基于银离子的超分子组装由于可以通过“软”还原剂进行还原，以及作为预定形态的银纳米粒子的可接近前体而具有吸引力，在等离子体传感器的实施中具有广阔的前景。为此，环芳烷的化学提供了一整套方法：外环离子配位、缔合、金属纳米粒子生长中心的稳定化，以及银离子的还原。因此，本综述介绍了基于环芳烷（间苯二酚[4]芳烃、（硫代）杯[n]芳烃、支柱[n]芳烃）的大环平台参与下，Ag（I）离子与大环配合物的自组装合成和稳定 Ag（0）纳米粒子的最新进展。
