Ex situ formation of metal selenide quantum dots using bacterially derived selenide precursors

被引:34
作者
Fellowes, J. W. [1 ,2 ]
Pattrick, R. A. D. [1 ,2 ]
Lloyd, J. R. [1 ,2 ]
Charnock, J. M. [1 ,2 ]
Coker, V. S. [1 ,2 ]
Mosselmans, J. F. W. [3 ]
Weng, T-C [4 ]
Pearce, C. I. [5 ]
机构
[1] Univ Manchester, Sch Earth Atmospher & Environm Sci, Manchester M13 9PL, Lancs, England
[2] Univ Manchester, Williamson Res Ctr Mol Environm Sci, Manchester M13 9PL, Lancs, England
[3] Diamond Light Source, Didcot, Oxon, England
[4] SLAC Natl Accelerator Lab, Stanford, CA USA
[5] Pacific NW Natl Lab, Richland, WA 99352 USA
基金
英国工程与自然科学研究理事会;
关键词
MICROBIAL SYNTHESIS; NANOPARTICLES; BIOSYNTHESIS; NANOCRYSTALS; CDTE;
D O I
10.1088/0957-4484/24/14/145603
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Luminescent quantum dots were synthesized using bacterially derived selenide (SeII-) as the precursor. Biogenic SeII- was produced by the reduction of Se-IV by Veillonella atypica and compared directly against borohydride-reduced Se-IV for the production of glutathione-stabilized CdSe and beta-mercaptoethanol-stabilized ZnSe nanoparticles by aqueous synthesis. Biological SeII- formed smaller, narrower size distributed QDs under the same conditions. The growth kinetics of biologically sourced CdSe phases were slower. The proteins isolated from filter sterilized biogenic SeII- included a methylmalonyl-CoA decarboxylase previously characterized in the closely related Veillonella parvula. XAS analysis of the glutathione-capped CdSe at the S K-edge suggested that sulfur from the glutathione was structurally incorporated within the CdSe. A novel synchrotron based XAS technique was also developed to follow the nucleation of biological and inorganic selenide phases, and showed that biogenic SeII- is more stable and more resistant to beam-induced oxidative damage than its inorganic counterpart. The bacterial production of quantum dot precursors offers an alternative, 'green' synthesis technique that negates the requirement of expensive, toxic chemicals and suggests a possible link to the exploitation of selenium contaminated waste streams.
引用
收藏
页数:10
相关论文
共 39 条
[11]   Electroluminescence of cadmium selenium nanocrystals synthesized in aqueous solution [J].
Gao, Yinhao ;
Liang, Chunjun ;
Tang, Aiwei ;
Teng, Feng ;
Li, Dan ;
Deng, Zhenbo ;
Huang, Shihua .
JOURNAL OF LUMINESCENCE, 2007, 122 :646-648
[12]   Thiol-capping of CdTe nanocrystals:: An alternative to organometallic synthetic routes [J].
Gaponik, N ;
Talapin, DV ;
Rogach, AL ;
Hoppe, K ;
Shevchenko, EV ;
Kornowski, A ;
Eychmüller, A ;
Weller, H .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (29) :7177-7185
[13]   Quantum dot labeling and tracking of human leukemic, bone marrow and cord blood cells [J].
Garon, Edward B. ;
Marcu, Laura ;
Luong, Quang ;
Tcherniantchouk, Oxana ;
Crooks, Gay M. ;
Koeffler, H. Phillip .
LEUKEMIA RESEARCH, 2007, 31 (05) :643-651
[14]  
HUDER JB, 1993, J BIOL CHEM, V268, P24564
[15]   Magnetic Electrochemiluminescent Fe3O4/CdSe-CdS Nanoparticle/Polyelectrolyte Nanocomposite for Highly Efficient Immunosensing of a Cancer Biomarker [J].
Jie, Guifen ;
Wang, Lei ;
Zhang, Shusheng .
CHEMISTRY-A EUROPEAN JOURNAL, 2011, 17 (02) :641-648
[16]   REACTION OF SELENIUM WITH SODIUM-BOROHYDRIDE IN PROTIC SOLVENTS - FACILE METHOD FOR INTRODUCTION OF SELENIUM INTO ORGANIC-MOLECULES [J].
KLAYMAN, DL ;
GRIFFIN, TS .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1973, 95 (01) :197-200
[17]  
Kowshik M, 2002, ADV MATER, V14, P815, DOI 10.1002/1521-4095(20020605)14:11<815::AID-ADMA815>3.0.CO
[18]  
2-K
[19]   Microbial synthesis of semiconductor CdS nanoparticles, their characterization, and their use in the fabrication of an ideal diode [J].
Kowshik, M ;
Deshmukh, N ;
Vogel, W ;
Urban, J ;
Kulkarni, SK ;
Paknikar, KM .
BIOTECHNOLOGY AND BIOENGINEERING, 2002, 78 (05) :583-588
[20]   Extracellular biosynthesis of CdSe quantum dots by the fungus, fusarium oxysporum [J].
Kumar, S. Anil ;
Ansary, Abu Ayoobul ;
Ahmad, Absar ;
Khan, M. I. .
JOURNAL OF BIOMEDICAL NANOTECHNOLOGY, 2007, 3 (02) :190-194