Abstract
Coordination polymer (CP) composite is a rapidly developing interdisciplinary research area. In this work, Au@Eu-based CP (Au@EuCP) composite nanoparticles have been prepared via a facile solvothermal method. The Au core is about 20 nm in diameter and the shell thickness is around 40 nm. When excited with 394 nm ultraviolet light, characterized emission of Eu3+ was observed. However, the emission intensity of the Au@EuCP is much lower than that of the EuCP. Methyl thiazolyl tetrazolium (MTT) test reveals that the core shell particles are with low cytotoxicity. When excited with 638 nm NIR laser at power density of 0.5 W/cm2 irradiation for 1 min, it quickly increased to 52.4 °C. The core shell particles may found application in bioimaging and photothermal therapy.
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