DETECTION OF DNA HYBRIDIZATION BASED ON THE QUENCHING OF UPCONVERSION FLUORESCENCE OF NAYF4 :YB,ER NANOSPHERES

摘要：

Upconversion fluorescentβ - NaYF4: Yb, Er nanospheres were successfully synthesized and their surfaces were carboxylic acid-functionalized. Based on the fact that gold nanoparticles can quench the upconversion fluorescence of β - NaYF4: Yb,Er, a sensitive sandwich-type DNA sensor was developed in this work, and the result demonstrated that the upconversion nanospheres have great potential as luminescent labels for biological applications.

关键词： DNA hybridization Gold nanoparticles Upconversion fluorescence β-NaYF4 Yb,Er

作者: Liu Chenghui Chen Depu

作者单位: College of Chemistry and Environmental Science, Hebei University, Baoding, China Department of Chemi Department of Chemistry, Tsinghua University, Beijing, China

会议类型: 国际会议

会议名称: The 6th International Forum on Post-genome Technologies(6IFPT)(第六届国际后基因组生命科学技术学术论坛)

会议地点: 北京

会议语种:英文

页码: 76-78

在线出版日期: 2009-09-17（万方平台首次上网日期，不代表论文的发表时间）