Strong green fluorescent hydrogels with Ba₂MgSi₂O₇:Eu²⁺ phosphor embedded in cellulose

Abstract

Non-cytotoxic and green-emitting fluorescent hydrogels were constructed from a cellulose solution containing Ba MgSi O :Eu green phosphor in a NaOH/urea aqueous system. The structure, optical properties and cytotoxicity of these hydrogels were studied. The Ba MgSi O :Eu phosphor particles were dispersed evenly in the cellulose hydrogel matrix. Good luminescent properties of Ba MgSi O :Eu phosphor were maintained in the hydrogels, leading to strong green emission under ultraviolet excitation. Fluorescent hydrogels have no obvious cytotoxicity in a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) proliferation test, and have potential use in in vivo applications like optical imaging and drug delivery.

Effect of different temperatures to remove reduction gas on the photoluminescence properties of Eu‐doped Li2(Ba1‐xSrx)SiO4 phosphors

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“…A wide class of optical materials based on bioinert polymer matrix modified by quantum dots are accepted for use in medicine today . The field of application of these materials is wide, and includes laser methods of treatment and prevention of chronic and infectious diseases, and also methods of diagnosis of oncological and hereditary genetic disorders .…”