Luminescent hollow micro- and nanocrystals have been successfully obtained taking advantage of the self-assembly behavior and the aggregation-induced emission enhancement properties of several bispyrazolate Pt(II) metallomesogens decorated with four terminal alkyl chains. Oil-in-water droplets have been used to confine the Pt(II) compounds and drive them to be self-assembled via intermolecular Pt···Pt interactions into spherical aggregates of about 200 or 50 nm. Evaporation of the oil phase generates highly-stable aqueous dispersions of nanocrystals that emit a bright orange light as a result of the existence of ³MMLCT excited states. Different methods and conditions have been tested for studying the effect of several parameters such as the temperature and the stirring speed in the final particle size and in the polydispersity index. Moreover, the micro- and nanocrystals are able to entrap hydrophobic drugs between the alkyl chains of the compounds, forming stable dispersions of drug-loaded capsules in water. The droplet method is applied in the area of metallomesogens for the first time to synthesize self-assembled Pt(II) nanocapsules, which opens a new field of study that could allow the use of these liquid crystal materials in biomedical applications.

利用几个具有四个末端烷基链的双吡唑酸酯Pt（II）金属成因剂的自组装行为和聚集诱导的发射增强特性，成功地获得了发光的空心微晶体和纳米晶体。水包油滴已用于限制Pt（II）化合物，并通过分子间Pt···Pt相互作用将其驱动为自组装成约200或50 nm的球形聚集体。油相的蒸发会产生高度稳定的纳米晶体水分散体，由于存在^3种，该晶体会发出亮橙色光MMLCT激发态。为了研究几个参数（例如温度和搅拌速度）对最终粒径和多分散指数的影响，已经测试了不同的方法和条件。而且，微晶体和纳米晶体能够将疏水性药物截留在化合物的烷基链之间，从而形成载药胶囊在水中的稳定分散体。液滴法首次应用于金属致孔剂领域，以合成自组装的Pt（II）纳米胶囊，这开辟了一个新的研究领域，可以使这些液晶材料在生物医学应用中使用。