LU Zhi-hua, CHEN Huan, HE Chun-feng, CHUAI Xiao-hong, QIN Guan-shi, ZHAO Dan. Synthesis of Water Soluble Upconversion NaYF<sub>4</sub>∶Yb<sup>3+</sup>,Er<sup>3+</sup> Nanoparticals Using Polyvinylpyrrolidone as Surfactant and Their Biological Compatibility[J]. Chinese Journal of Luminescence, 2011,32(10): 993-997
LU Zhi-hua, CHEN Huan, HE Chun-feng, CHUAI Xiao-hong, QIN Guan-shi, ZHAO Dan. Synthesis of Water Soluble Upconversion NaYF<sub>4</sub>∶Yb<sup>3+</sup>,Er<sup>3+</sup> Nanoparticals Using Polyvinylpyrrolidone as Surfactant and Their Biological Compatibility[J]. Chinese Journal of Luminescence, 2011,32(10): 993-997DOI:
Synthesis of Water Soluble Upconversion NaYF4∶Yb3+,Er3+ Nanoparticals Using Polyvinylpyrrolidone as Surfactant and Their Biological Compatibility
(mole fraction) upconversion nanoparticles (UCNPs) were synthesized by facile solvothermal method using polyvinylpyrrolidone (PVP) as the surfactant. The size and morphology of the UCNPs were confirmed by scanning electron microscopy (SEM). The SEM images showed almost all the UCNPs were nanospheres and the size was about 40 nm. Under the 980 nm excitation
the UCNPs exhibit bright yellow light. The UCNPs could be well dispersed in water to form a clearly transparent solution. MTT assay was performed to analyze the biotoxicity of the UCNPs. The results showed the NaYF
4
∶Yb
3+
/Er
3+
UCNPs modified by PVP had fairly biological compatibility and no biotoxicity for HeLa cell line
even the concentration of UCNPs reached 200 mg/mL. These results showed that the UCNPs had potential applications in biological field as luminescence labeling probes.
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Cao T Y, Yang Y, Li F Y, et al. High-quality water-soluble and surface-functionalized upconversion nanocrystals as luminescent probes for bioimaging [J]. Biomaterials, 2011, 32 (11):2959-2968.[2] Beaurepaire E, Buissette V, Sauviat M P, et al. Functionalized fluorescent oxide nanoparticles: Artificial toxins for sodium channel targeting and Imaging at the single-molecule level [J]. Nano Lett., 2004, 4 (11):2079-2083.[3] Chatteriee D K, Rufalhah A J, Zhang Y. Upconversion fluorescence imaging of cells and small animals using lanthanide doped nanocrystals [J]. Biomaterials, 2008, 29 (7):937-943.[4] Das G K, Tan T Y. Rare-earth-doped and codoped Y2O3 nanomaterials as potential bioimaging probes [J]. J. Phys. Chem. C, 2008, 112 (30):11211-11217.[5] Chen H, Chuai X H, Wang L L. Synthesis and optical properties of water soluble upconversion NaYF4∶Yb, Tm nanoparticles [J]. Chin. J. Lumin. (发光学报), 2010, 31 (4):538-542 (in Chinese).[6] Dou J T, Hou Y B. Upconversion luminescence of ZBLAN∶Yb3+, Tm3+ co-excited by double-frequency with both 808 and 980 nm laser [J]. Chin. J. Lumin. (发光学报), 2008, 29 (1):85-88 (in Chinese).[7] Huang M W, Meng F Y, Yuan X H, et al. Reasearch on upconverion spectra of NaY1-x-yF4∶Yb3+y, Tm3+x nanoparticles [J]. Chin. J. Lumin. (发光学报), 2008, 29 (1):192-194 (in Chinese).[8] Liang L F, Zhuang J L, Wu H, et al. White up-conversion emission of hydrothermolly synthesized hexagonal NaYF4∶Er3+/Tm3+ [J]. Chin. J. Lumin. (发光学报), 2008, 29 (6):996-1002 (in Chinese).[9] De G J H, Qin W P, Zhang J S, et al. Bright-green upconversion emission of hexagonal LaF3∶Yb3+,Er3+ nanocrystals [J]. Chem. Lett., 2005, 34 (7):914-915.[10] Ehlert O, Thomann R, Darbandi M, et al. A four-color colloidal multiplexing nanoparticle system [J]. ACS Nano., 2008, 2 (1):120-124.[11] Hilderbrand S A, Shao F W, Salthouse C, et al. Upconverting luminescent nanomaterials: application to in vivo bioima-ging [J]. Chem. Commun., 2009, 28 :4188-4190.[12] Bunzli J C G, Eliseeva S V. Lanthanide luminescence for functional materials and bio-sciences [J]. Chem. Soc. Rev., 2010, 39 (1):189-227.[13] Zhang Y, Jalil R A. Biocompatibility of silica coated NaYF4 upconversion fluorescent nanocrystals [J]. Biomaterials, 2008, 29 (30):4122-4128.[14] Green M, Rahman P. The synthesis of rare earth fluoride based nanoparticles [J]. Nanoscale, 2009, 1 (2):214-224.[15] Yi GS, Lu H C, Zhao S Y, et al. Synthesis, characterization, and biological application of size-controlled nanocrystalline NaYF4∶Yb,Er infrared-to-visible up-conversion phosphors [J]. Nano Lett., 2004, 4 (11):2191-2196.[16] Chen D P, Wei Y, Lu F Q, et al. Synthesis of oil-dispersible hexagonal-phase and hexagonal-shaped NaYF4∶Yb,Er nanoplates [J]. Chem. Mater., 2006, 18 (24):5733-5737.