Water-soluble hollow nanocrystals from self-assembly of AIEEactive Pt(II)metallomesogens
作者机构：BIOSCOPE Research GroupLAQV@REQUIMTE Chemistry DepartmentNOVA School of Science and TechnologyNOVA University Lisbon2829-516 CaparicaPortugal PROTEOMASS Scientific SocietyRua dos InventoresMadam ParqueCaparica Campus2829-516 CaparicaPortugal Department of Inorganic ChemistryComplutense University of MadridCiudad Universitaria28040 MadridSpain
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2021年第14卷第1期
页 面：245-254页
核心收录：
学科分类：0808[工学-电气工程] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 070205[理学-凝聚态物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学]
基 金：the Associate Laboratory for Green Chemistry-LAQV,which is financed by national funds from FCT/MCTES(No.UIDB/50006/2020) the PROTEOMASS Scientific Society(general funds).C.C.acknowledges the Spanish Foundation Alfonso Martin Escuderofor his postdoctoral fellowship.J.F.L.thanks FCT/MEC(Portugal)the junior researcher contract under DL/57 programme.
主 题：R(II)metallomesogens self-assembly luminescent nanomaterials droplets nanocapsules
摘 要：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^(3)MMLCT 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.
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