期刊文献+

超小荧光二硫化钨量子点的水热合成及细胞成像应用 被引量:1

Hydrothermal Synthesis of Ultrasmall Fluorescent Tungsten Disulfide Quantum Dots and Their Application in Cell imaging
下载PDF
导出
摘要 以钨酸钠和半胱氨酸为原料,采用水热法一步合成了具有超小粒径(约2 nm)的二硫化钨荧光量子点(WS_2QDs).利用透射电子显微镜(TEM)、荧光光谱、X射线光电子能谱(XPS)、红外光谱(FTIR)和X射线衍射光谱(XRD)对其进行了表征,并考察了其稳定性和细胞毒性.结果表明,制备的WS_2QDs具有水溶性好、稳定性高和细胞毒性低的优点.将此WS_2QDs用于人乳腺癌细胞(MCF-7)的成像,并通过溶酶体荧光探针进行共定位,发现此WS_2QDs可能借助溶酶体进入细胞内. Ultrasmall tungsten disulfide quantum dots(WS2QDs)were prepared by one-step hydrothermal method using sodium tungstate and cysteine as starting materials.The WS2QDs were characterized by means of transmission electron microscopy(TEM),fluorescence spectroscopy,infrared spectroscopy and X-ray diffraction spectroscopy(XRD),and their stability and cell toxicity were investigated.The results show that the as-prepared WS2QDs have good water-solubility,high stability,and low cell toxicity.Then,the WS2QDs were used for MCF-7 human breast cancer cells imaging,and the results of fluorescence co-localization imaging of Lyso-Tracker Red probes indicate that the WS2QDs enter the cells via lysosomal pathway.
作者 沐亚新 阿丽 庄欠粉 王勇 倪永年 MU Yaxin;A Li;ZHUANG Qianfen;WANG Yong;NI Yongnian(College of Chemistry,Nanchang University,Nanchang 330031,China)
出处 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2019年第4期693-697,共5页 Chemical Journal of Chinese Universities
基金 国家自然科学基金(批准号:21864017 21305061) 江西省自然科学基金(批准号:20181BAB213008 20171BAB203018) 江西省教育厅科学技术研究项目(批准号:GJJ160006 GJJ160204) 中国科学院长春应用化学研究所电分析化学国家重点实验室开放基金(批准号:SKLEAC201802) 南昌大学食品科学与技术国家重点实验室开放基金(批准号:SKLF-KF-201810) 南昌大学研究生创新专项资金项目(批准号:CX2017040)资助 湖南大学化学生物传感与计量学国家重点实验室项目(批准号:SKLCBC-2018007)~~
关键词 二硫化钨量子点 细胞成像 荧光 Tungsten disulfide quantum dots Cell imaging Fluorescence
  • 相关文献

参考文献2

二级参考文献49

  • 1张文钲,姚殳.二硫化钼制备与应用研究进展[J].润滑油,2006,21(4):19-25. 被引量:28
  • 2R, Tenne, L. Margulis, M. Genut, et al. Polyhedral and cylindrical structures of WS2. Nature, 1992,360:444-446.
  • 3M. Nath, A. Govindaraj, C. N. R. Rao. Simple synthesis of MoS2 and WS2 nanotubes. Advanced Materials,2001,13 (4) : 283-286.
  • 4R. L. D. Whitby, W. K. Hsu, P. K. Fearon, et at. Muhiwalled Carbon Nanotubes Coated with Tungsten Disulfide. Chemistry of Materials, 2002,14:2209-2217.
  • 5J. F. Wu, X. Fu. A low-temperature solvothermal method to prepare hollow spherical WS2 nanoparticles modified by TOA. Materials Letters, 2007,61 (21) :4332-4335.
  • 6S. Seegera, T. R. Mientusb, J. Rohricha, et al. Electrical and optical properties of highly(005 ) textured WSX films deposited by reactive magnetron sputtering. Surface and Coatings Technology, 2005, ( 200 ) : 218-221.
  • 7X. L. Li,Y. D. Li. Formation of MoS2 Inorganic Fullerenes (IFs) by the Reaction of MoO3 Nanobelts and S. Chemistry, 2003,9 ( 12 ) : 2726-2731.
  • 8P. G. Li, M. Lei, X. F. Wang, et at. Thermal conversion of tungsten oxide nanorods to tungsten disulfide nanoflakes. Journal of Alloys and Compounds,2009,474:463-467.
  • 9W. J. Li, E. W. Shi, J. M. Ko, et al. Hydrnthermal synthesis of MoS2 nanowires. Journal of Crystal Growth ,2003,250:418-422.
  • 10T. T. Yang, X. Feng, Q. L. Tang, et at. A facile method to prepare MoS2 with nanolameller-like morphology. Journal of Alloys and Compounds, 2011,509:1236-1238.

共引文献15

同被引文献1

引证文献1

二级引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部