浏览全部资源
扫码关注微信
台州学院 医药化工学院, 浙江 台州 317028
纸质出版日期:2017-3-5,
收稿日期:2016-9-11,
修回日期:2016-10-19,
扫 描 看 全 文
沈茂, 陈素清, 贾文平等. Ag@Fe<sub>3</sub>O<sub>4</sub>@C-CdTe@SiO<sub>2</sub>磁性荧光复合微球的制备与光学特征[J]. 发光学报, 2017,38(3): 274-280
SHEN Mao, CHEN Su-qing, JIA Wen-ping etc. Magnetic and Optical Properties of Ag@Fe<sub>3</sub>O<sub>4</sub>@C-CdTe@SiO<sub>2</sub> Hybrid Nanoparticles[J]. Chinese Journal of Luminescence, 2017,38(3): 274-280
沈茂, 陈素清, 贾文平等. Ag@Fe<sub>3</sub>O<sub>4</sub>@C-CdTe@SiO<sub>2</sub>磁性荧光复合微球的制备与光学特征[J]. 发光学报, 2017,38(3): 274-280 DOI: 10.3788/fgxb20173803.0274.
SHEN Mao, CHEN Su-qing, JIA Wen-ping etc. Magnetic and Optical Properties of Ag@Fe<sub>3</sub>O<sub>4</sub>@C-CdTe@SiO<sub>2</sub> Hybrid Nanoparticles[J]. Chinese Journal of Luminescence, 2017,38(3): 274-280 DOI: 10.3788/fgxb20173803.0274.
先采用一步溶剂热法和水热法制备了碳包覆的Ag@Fe
3
O
4
核壳型磁性纳米粒子,然后通过表面氨基化改性后与巯基乙酸修饰的CdTe量子点反应,将量子点键合到磁性微球上,最后在其表面包覆上一层二氧化硅壳层,制备出具有荧光增强的Ag@Fe
3
O
4
@C-CdTe@SiO
2
磁性荧光复合材料。实验结果表明,该纳米粒子的平均粒径大约为150 nm,磁饱和强度为224 A/g(22.4 emu/g),在室温下具有较好的磁性能。其中Ag@Fe
3
O
4
@C-CdTe磁性荧光纳米粒子的荧光强度大于Fe
3
O
4
@C-CdTe,其主要原因是内核为45 nm的Ag纳米粒子具有表面等离子体共振作用,能够使其表面或附近的量子点荧光得到增强。
Novel hybrid nanoparticles Ag@Fe
3
O
4
@C-CdTe@SiO
2
were prepared. The synthesis method is included of a Fe
3
O
4
magnetic embedded Ag core (Ag@Fe
3
O
4
)
an interlayer of carbon modified by PEI to form sufficient amounts of amine functional groups (Ag@Fe
3
O
4
@C-PEI)
the grafting of CdTe quantum dots (QDs) on the surface of Ag@Fe
3
O
4
@C-PEI (Ag@Fe
3
O
4
@C-CdTe)
and an ordered SiO
2
structured shell. The nanocomposites possess an average diameter of 150 nm
orange emission feature and the saturation magnetization of 224 A/g (22.4 emu/g)
which has room temperature ferro-magnetism. The photoluminescence measurement reveals that the fluorescence of Ag@Fe
3
O
4
@C-CdTe nanostructures in this composite with the Ag cores of about 45 nm has more enhancement compared with that of Fe
3
O
4
@C-CdTe nanostructures due to the strong surface plasmonic resonance of the Ag cores.
多功能纳米粒子贵金属荧光增强核壳结构
multifunctional nanoparticlesnoble metalenhanced-luminescentcore-shell
CHEN M L, HE Y J, CHEN X W, et al.. Quantum dots conjugated with Fe3O4-filled carbon nanotubes for cancer-targeted imaging and magnetically guided drug delivery[J]. Langmuir, 2012, 28(47):16469-16476.
ZHANG Y, WANG S N, MA S, et al.. Self-assembly multifunctional nanocomposites with Fe3O4 magnetic core and CdSe/ZnS quantum dots shell[J]. J. Biomed. Mater. Res. A, 2008, 85(3):840-846.
SUN X Y, DING K, HOU Y, et al.. Bifunctional superparticles achieved by assembling fluorescent CuInS2@ZnS quantum dots and amphibious Fe3O4 nanocrystals[J]. J. Phys. Chem. C, 2013, 117(40):21014-21020.
XU Y, KARMAKAR A, WANG D Y, et al.. Multifunctional Fe3O4 cored magnetic-quantum dot fluorescent nanocomposites for RF nanohyperthermia of cancer cells[J]. J. Phys. Chem. C, 2010, 114(11):5020-5026.
STINAFF E A, SCHEIBNER M, BRACKER A S, et al.. Optical signatures of coupled quantum dots[J]. Science, 2006, 311(5761):636-639.
WU W, HE Q G, JIANG C Z. Magnetic iron oxide nanoparticles:synthesis and surface functionalization strategies[J]. Nanoscale Res. Lett., 2008, 3(11):397-415.
NIU P H, LIU B C, LI Y J, et al.. CdTe@SiO2/Ag nanocomposites as antibacterial fluorescent markers for enhanced latent fingerprint detection[J]. Dyes. Pigm., 2015, 119:1-11.
CHANG Y H, LU Y C, CHOU K S. Enhancement of photoluminescence of different quantum dots by Ag@SiO2 core-shell nanoparticles[J]. Mater. Res. Bull., 2013, 48(6):2076-2078.
SUI N, MONNIER V, SALVIA M V, et al.. Magnetic and optical properties of Ag@SiO2-FITC-Fe3O4 hybrid nanoparticles[J]. Mater. Sci. Eng. B, 2014, 182:92-95.
WANG H Y, XU L, ZHANG R Q, et al.. Controllable photoluminescence enhancement of CdTe/CdS quantum dots thin films incorporation with Au nanoparticles[J]. Nanoscale Res. Lett., 2015, 10:128-1-6.
XIA H X, YANG X Q, SONG J T, et al.. Folic acid-conjugated silica-coated gold nanorods and quantum dots for dual-modality CT and fluorescence imaging and photothermal therapy[J]. J. Mater. Chem. B, 2014, 2(14):1945-1953.
JIANG W Q, ZHOU Y F, ZHANG Y L, et al.. Superparamagnetic Ag@Fe3O4 core-shell nanospheres:fabrication, characterization and application as reusable nanocatalysts[J]. Dalton Trans., 2012, 41(15):4594-4601.
ZHU M Y, WANG C J, MENG D H, et al.. In situ synthesis of silver nanostructures on magnetic Fe3O4@C core-shell nanocomposites and their application in catalytic reduction reactions[J]. J. Mater. Chem. A, 2013, 1(6):2118-2125.
SHEN M, JIA W P, YOU Y J, et al.. Luminescent properties of CdTe quantum dots synthesized using 3-mercaptopropionic acid reduction of tellurium dioxide directly[J]. Nanoscale Res. Lett., 2013, 8:253-1-6.
SHEN M, JIA W P, LIN C P, et al.. Facile synthesis of folate-conjugated magnetic/fluorescent bifunctional microspheres[J]. Nanoscale Res. Lett., 2014, 9:558-1-8.
0
浏览量
27
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构