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    • 1. 发明申请
    • LANTHANIDE-DOPED NAYF4 NANOCRYSTALS, METHOD OF PREPARING AND USES THEREOF
    • 纳米DADED NAYF4纳米晶体,其制备方法及其用途
    • US20090042314A1
    • 2009-02-12
    • US12125201
    • 2008-05-22
    • John A. CapobiancoJohn-Christopher BoyerLouis A. CucciaFiorenzo Vetrone
    • John A. CapobiancoJohn-Christopher BoyerLouis A. CucciaFiorenzo Vetrone
    • G01N33/53
    • C01F17/0031B82Y15/00B82Y30/00C01P2002/52C01P2002/72C01P2002/77C01P2002/84C01P2002/86C01P2004/04C01P2004/22C01P2004/52C01P2004/64C09D11/037G01N33/588
    • The present invention relates to a method of preparing lanthanide-doped NaYF4 nanocrystals, the method comprising: (A) providing a first solution comprising a non-coordinating solvent, a fatty acid coordinating ligand, sodium trifluoroacetate, yttrium trifluoroacetate, a first doping lanthanide trifluoroacetate and a second doping lanthanide trifluoroacetate, and a second solution comprising the non-coordinating solvent and the fatty acid coordinating ligand, the first and second solutions being substantially free of water and oxygen; (B) in an inert atmosphere, slowly adding the first solution heated at a temperature between about 100° C. and about 150° C. to the second solution heated at temperature between about 290° C. and about 330° C., thereby producing a reaction mixture containing the nanocrystals; and (C) recovering the nanocrystals from the reaction mixture. The invention also relates to lanthanide-doped uniformly shaped cubic NaYF4 nanocrystals having an average particle size of at most about 50 nm with a standard deviation of at most about 15%. Finally, the invention also relates to methods of (A) identifying or authenticating a product, (B) labelling an analyte, (C) detecting an analyte, and (D) producing a light source for the telecommunication industry using the above nanocrystals.
    • 本发明涉及一种制备镧系元素掺杂的NaYF4纳米晶体的方法,所述方法包括:(A)提供包含非配位溶剂,脂肪酸配位配体,三氟乙酸钠,三氟乙酸钇,第一掺杂镧系元素三氟乙酸盐 和第二掺杂镧系元素三氟乙酸盐,以及包含所述非配位溶剂和所述脂肪酸配位配体的第二溶液,所述第一和第二溶液基本上不含水和氧; (B)在惰性气氛中,将在约100℃至约150℃的温度下加热的第一溶液缓慢加入到在约290℃至约330℃之间的温度下加热的第二溶液,由此 产生含有纳米晶体的反应混合物; 和(C)从反应混合物中回收纳米晶体。 本发明还涉及平均粒度为至多约50nm的标准偏差至多约15%的镧系元素掺杂均匀形状的立方晶NaYF4纳米晶体。 最后,本发明还涉及(A)鉴定或认证产品的方法,(B)标记分析物,(C)检测分析物,和(D)使用上述纳米晶体生产电信工业的光源。
    • 2. 发明授权
    • Lanthanide-doped NaYF4 nanocrystals, method of preparing and uses thereof
    • 掺杂镧系元素的NaYF4纳米晶体,其制备方法和用途
    • US08088631B2
    • 2012-01-03
    • US12125201
    • 2008-05-22
    • John A. CapobiancoJohn-Christopher BoyerLouis A. CucciaFiorenzo Vetrone
    • John A. CapobiancoJohn-Christopher BoyerLouis A. CucciaFiorenzo Vetrone
    • G01N33/553
    • C01F17/0031B82Y15/00B82Y30/00C01P2002/52C01P2002/72C01P2002/77C01P2002/84C01P2002/86C01P2004/04C01P2004/22C01P2004/52C01P2004/64C09D11/037G01N33/588
    • The present invention relates to a method of preparing lanthanide-doped NaYF4 nanocrystals, the method comprising: (A) providing a first solution comprising a non-coordinating solvent, a fatty acid coordinating ligand, sodium trifluoroacetate, yttrium trifluoroacetate, a first doping lanthanide trifluoroacetate and a second doping lanthanide trifluoroacetate, and a second solution comprising the non-coordinating solvent and the fatty acid coordinating ligand, the first and second solutions being substantially free of water and oxygen; (B) in an inert atmosphere, slowly adding the first solution heated at a temperature between about 100° C. and about 150° C. to the second solution heated at temperature between about 290° C. and about 330° C., thereby producing a reaction mixture containing the nanocrystals; and (C) recovering the nanocrystals from the reaction mixture. The invention also relates to lanthanide-doped uniformly shaped cubic NaYF4 nanocrystals having an average particle size of at most about 50 nm with a standard deviation of at most about 15%. Finally, the invention also relates to methods of (A) identifying or authenticating a product, (B) labelling an analyte, (C) detecting an analyte, and (D) producing a light source for the telecommunication industry using the above nanocrystals.
    • 本发明涉及一种制备镧系元素掺杂的NaYF4纳米晶体的方法,所述方法包括:(A)提供包含非配位溶剂,脂肪酸配位配体,三氟乙酸钠,三氟乙酸钇,第一掺杂镧系元素三氟乙酸盐 和第二掺杂镧系元素三氟乙酸盐,以及包含所述非配位溶剂和所述脂肪酸配位配体的第二溶液,所述第一和第二溶液基本上不含水和氧; (B)在惰性气氛中,将在约100℃至约150℃的温度下加热的第一溶液缓慢加入到在约290℃至约330℃之间的温度下加热的第二溶液,由此 产生含有纳米晶体的反应混合物; 和(C)从反应混合物中回收纳米晶体。 本发明还涉及平均粒度为至多约50nm的标准偏差至多约15%的镧系元素掺杂均匀形状的立方晶NaYF4纳米晶体。 最后,本发明还涉及(A)鉴定或认证产品的方法,(B)标记分析物,(C)检测分析物,和(D)使用上述纳米晶体生产电信工业的光源。