作者: Lining Sun , Tao Liu , Yannan Qiu , Jinliang Liu , Liyi Shi
DOI: 10.1007/S00604-013-1073-9
关键词: Upconverting nanoparticles 、 Mesoporous material 、 Laser 、 Photochemistry 、 Cytotoxicity 、 Nanochemistry 、 Materials science 、 Nanotechnology 、 Core shell nanoparticles 、 Green emission 、 Mesoporous silica
摘要: We have developed a one-step method for the synthesis of mesoporous upconverting nanoparticles (MUCNs) type NaYF4:Yb,Er@mSiO2 in ammoniacal ethanol/water solution. The silica is directly encapsulating hydrophobic upconversion (UCNs) due to presence template CTAB. Intense green emission (between 520 and 560 nm) weaker red 630 670 observed upon 980-nm laser excitation. MUCNs display low cytotoxicity (as revealed by an MTT test) were successfully applied label image human nasopharyngeal epidermal carcinoma (KB) cells.