中国物理B ›› 2015, Vol. 24 ›› Issue (1): 16101-016101.doi: 10.1088/1674-1056/24/1/016101

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Growth of PbS nanoclusters on specific sites of programmed oligodeoxynucleotides

陆颖, 滕翠娟, 李颖, 王惠, 徐春华, 胡书新, 李明   

  1. Beijing National Laboratory for Condensed Matter Physics and Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2014-08-11 修回日期:2014-09-22 出版日期:2015-01-05 发布日期:2015-01-05
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11104328, 10904164, and 11004234) and the Knowledge Innovation Program of Chinese Academy of Sciences (Grant No. kjcx3.syw.n8).

Growth of PbS nanoclusters on specific sites of programmed oligodeoxynucleotides

Lu Ying (陆颖), Teng Cui-Juan (滕翠娟), Li Ying (李颖), Wang Hui (王惠), Xu Chun-Hua (徐春华), Hu Shu-Xin (胡书新), Li Ming (李明)   

  1. Beijing National Laboratory for Condensed Matter Physics and Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2014-08-11 Revised:2014-09-22 Online:2015-01-05 Published:2015-01-05
  • Contact: Hu Shu-Xin E-mail:hushuxin@aphy.iphy.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11104328, 10904164, and 11004234) and the Knowledge Innovation Program of Chinese Academy of Sciences (Grant No. kjcx3.syw.n8).

摘要:

We develope a method to synthesize PbS nanoclusters (NCs) using guanine-containing oligodeoxynucleotides (ODNs) as templates. The NCs on the ODNs are ultra small (ranging from ~ 0.5 nm to 2.1 nm) and luminescent in the visible region. They are characterized by photoluminescence (PL) spectra, transmission electron microscopy (TEM), and X-ray powder diffraction (XRD). The ODN-NC complexes can be used as customer-designed fluorophores which do not have the problem of multiple conjugations. The same method enables us to fabricate PbS quantum dot molecules and connect them into nanowires, expanding their potential applications in molecule electronics and quantum computing.

关键词: PbS nanoclusters, quantum dot molecules, oligodeoxynucleotides, photoluminescence

Abstract:

We develope a method to synthesize PbS nanoclusters (NCs) using guanine-containing oligodeoxynucleotides (ODNs) as templates. The NCs on the ODNs are ultra small (ranging from ~ 0.5 nm to 2.1 nm) and luminescent in the visible region. They are characterized by photoluminescence (PL) spectra, transmission electron microscopy (TEM), and X-ray powder diffraction (XRD). The ODN-NC complexes can be used as customer-designed fluorophores which do not have the problem of multiple conjugations. The same method enables us to fabricate PbS quantum dot molecules and connect them into nanowires, expanding their potential applications in molecule electronics and quantum computing.

Key words: PbS nanoclusters, quantum dot molecules, oligodeoxynucleotides, photoluminescence

中图分类号:  (Structure of clusters (e.g., metcars; not fragments of crystals; free or loosely aggregated or loosely attached to a substrate))

  • 61.46.Bc
78.67.Bf (Nanocrystals, nanoparticles, and nanoclusters) 87.85.jf (Bio-based materials)