SYNTHESIS, PHASE TRANSFER AND SURFACE MODIFICATION OF HYDROPHOBIC QUANTUM DOTS FOR BIOAPPLICATIONS

被引:1
|
作者
Zhang, Ruili [1 ]
Zhang, Xiao [2 ]
Li, Xiaoyu [1 ]
Yang, Ping [1 ]
机构
[1] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China
[2] Univ Toronto, Trinity Coll, Toronto, ON M5S 1H8, Canada
基金
中国国家自然科学基金;
关键词
Quantum dots; hydrophobic; phase transfer; surface modification; SEMICONDUCTOR NANOCRYSTALS; SIO2; BEADS; CDSE/ZNS; MORPHOLOGY; BRIGHT; ROUTE; SHELL; QDS;
D O I
10.1142/S179360471330003X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We review the preparation, phase transfer, surface modification and possible bioapplications of hydrophobic CdSe based quantum dots (QDs). CdSe cores with rod and spherical morphologies were prepared through adjusting preparation conditions. The photoluminescence (PL) of the QDs depended strongly on preparation conditions. The QDs were coated with semiconductor shells to improve their PL properties. Anisotropic growth occurred during shell coating. Core/shell QDs revealed tunable PL and high PL efficiencies up to 90%. The phase transfer of QDs from oil phase to water phase was carried out via polymer or a sol-gel process. The silanization of the QDs plays an important role for the sol-gel process. Because of a SiO2 coating, the surface modification of the QDs for bioapplications became easy. After transferring into water phase, the QDs still retained high PL efficiency. Because of their high PL, these biofunctional materials could provide a platform for various applications.
引用
收藏
页数:9
相关论文
共 50 条
  • [21] Synthesis, modification and bioapplications of nanoscale copper chalcogenides
    Yun, Baofeng
    Zhu, Hongqin
    Yuan, Jiaxin
    Sun, Qiao
    Li, Zhen
    JOURNAL OF MATERIALS CHEMISTRY B, 2020, 8 (22) : 4778 - 4812
  • [22] Synthesis and Bioapplications of Ag2S Quantum Dots with Near-Infrared Fluorescence
    Ding, Caiping
    Huang, Youju
    Shen, Zheyu
    Chen, Xiaoyuan
    ADVANCED MATERIALS, 2021, 33 (32)
  • [23] Surface modification of CdS quantum dots with fluorinated thiophenol
    Hosokawa, H
    Ogata, T
    Wada, Y
    Murakoshi, K
    Sakata, T
    Mori, H
    Yanagida, S
    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1996, 92 (22): : 4575 - 4580
  • [24] Surface Modification and Application of Quantum Dots Based on Polymers
    Lai Shoujun
    Guan Xiaolin
    PROGRESS IN CHEMISTRY, 2011, 23 (05) : 941 - 950
  • [25] Probing the cytotoxicity of CdSe quantum dots with surface modification
    Guo, Guoning
    Liu, Wei
    Liang, Jiangong
    He, Zhike
    Xu, Huibi
    Yang, Xiangliang
    MATERIALS LETTERS, 2007, 61 (8-9) : 1641 - 1644
  • [26] Progress in microwave-assisted synthesis of quantum dots (graphene/carbon/semiconducting) for bioapplications: a review
    Singh, R. K.
    Kumar, R.
    Singh, D. P.
    Savu, R.
    Moshkalev, S. A.
    MATERIALS TODAY CHEMISTRY, 2019, 12 (282-314) : 282 - 314
  • [27] On the possibility of nonradiative energy transfer between hydrophobic quantum dots in solutions
    S. B. Brichkin
    M. G. Spirin
    V. Yu. Gak
    Colloid Journal, 2014, 76 : 6 - 11
  • [28] On the possibility of nonradiative energy transfer between hydrophobic quantum dots in solutions
    Brichkin, S. B.
    Spirin, M. G.
    Gak, V. Yu.
    COLLOID JOURNAL, 2014, 76 (01) : 6 - 11
  • [29] Fluorescent quantum dots: Synthesis, modification, and application in immunoassays
    Speranskaya E.S.
    Goryacheva I.Y.
    Nanotechnologies in Russia, 2013, 8 (11-12): : 685 - 699
  • [30] Efficient phase transfer of hydrophobic CdSe quantum dots: From nonpolar organic solvent to biocompatible water buffer
    Feng, LY
    Kong, XG
    Chao, KF
    Sun, YJ
    Zeng, QH
    Zhang, YL
    MATERIALS CHEMISTRY AND PHYSICS, 2005, 93 (2-3) : 310 - 313