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    • 3. 发明申请
    • LUMINESCENT BISMUTH SILICATES, USE AND METHOD FOR PRODUCING THEREOF
    • 发光双酚硅酸盐,其生产方法及其制备方法
    • WO2016203431A1
    • 2016-12-22
    • PCT/IB2016/053594
    • 2016-06-17
    • UNIVERSITA' CA' FOSCARI
    • BACK, MicheleRIELLO, Pietro
    • C09K11/74A61K49/00
    • C09K11/7774A61K41/0057A61K41/0076
    • The present invention relates to luminescent compounds of lanthanide/Yb doped bismuth silicate that present a crystalline structure and are characterized by non-linear optical properties, particularly photon up-conversion following IR or NIR excitation. Furthermore, the present invention describes several synthesis routes for producing said compounds in different form (e.g. particles, core-shell particles, bulk crystal), dimension (e.g. nanoscale or microscale) and crystalline structure, which result in tunable optical properties in view of a specific application. Particularly, there are disclosed Er/ Yb, Ho/Yb, Tm/Yb doped bismuth silicate nanoparticles that emit up-conversion light of the three basic colors (RGB). As said compounds are non-cytotoxic and present attractive optical properties, they find a wide range of applications, both industrial (e.g. lighting, solar energy, anti-counterfeiting) and biomedical (e.g. drug delivery, bio-imaging, nanomedicine).
    • 本发明涉及呈现晶体结构的镧系元素/ Yb掺杂的铋酸铋的发光化合物,其特征在于非线性光学性质,特别是IR或NIR激发后的光子上转换。 此外,本发明描述了用于生产不同形式(例如颗粒,核 - 壳颗粒,本体晶体),尺寸(例如纳米尺度或微米)和晶体结构的所述化合物的几种合成途径,其导致可调谐的光学性质 具体应用。 特别地,公开了发出三种基色(RGB)的上转换光的Er / Yb,Ho / Yb,Tm / Yb掺杂的硅酸铋纳米粒子。 由于所述化合物是非细胞毒性的并且具有吸引人的光学性质,因此它们可以广泛应用于工业(例如照明,太阳能,防伪)和生物医学(例如药物递送,生物成像,纳米医学)。