Alfalfa sprouts: A natural source for the synthesis of silver nanoparticles

被引：724

作者：

Gardea-Torresdey, JL

Gomez, E

Peralta-Videa, JR

Parsons, JG

Troiani, H

Jose-Yacaman, M

机构：

[1] Univ Texas, Dept Chem & Environm Sci & Engn, El Paso, TX 79968 USA

[2] Univ Texas, Dept Chem Engn, Austin, TX 78712 USA

[3] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City, DF, Mexico

来源：

LANGMUIR | 2003年 / 19卷 / 04期

关键词：

D O I：

10.1021/la020835i

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The preparation and study of quantum dots and quantum wires play a very important role in nanotechnology. In this particular study, we report on the uptake of silver by living alfalfa plants. X-ray absorption spectroscopy and transmission electron microscopy (TEM) studies corroborated silver metal uptake by alfalfa plants from a silver-rich solid medium and the subsequent formation of silver nanoparticles. Silver nanoparticle alignment, structure, and coalescence were observed using TEM with an atomic resolution analysis. Dark field image TEM showed the connection of silver nanoparticles of different sizes by possibly noncrystalline silver atomic wires. To our knowledge, this is the first report on the formation of silver nanoparticles by a living plant system.

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页码：1357 / 1361

页数：5

相关论文

共 18 条

[1] Real-space multiple-scattering calculation and interpretation of x-ray-absorption near-edge structure [J].

Ankudinov, AL ;

Ravel, B ;

Rehr, JJ ;

Conradson, SD .

PHYSICAL REVIEW B, 1998, 58 (12) :7565-7576

[2] Silver nanowires grown in the pores of a silica gel [J].

Bhattacharyya, S ;

Saha, SK ;

Chakravorty, D .

APPLIED PHYSICS LETTERS, 2000, 77 (23) :3770-3772

[3] Controlled deposition of size-selected silver nanoclusters [J].

Bromann, K ;

Felix, C ;

Brune, H ;

Harbich, W ;

Monot, R ;

Buttet, J ;

Kern, K .

SCIENCE, 1996, 274 (5289) :956-958

[4] Nanostructured magnetism in living systems [J].

Dickson, DPE .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 203 :46-49

[5] Formation and growth of Au nanoparticles inside live alfalfa plants [J].

Gardea-Torresdey, JL ;

Parsons, JG ;

Gomez, E ;

Peralta-Videa, J ;

Troiani, HE ;

Santiago, P ;

Yacaman, MJ .

NANO LETTERS, 2002, 2 (04) :397-401

[6] XAS investigations into the mechanism(s) of Au(III) binding and reduction by alfalfa biomass [J].

Gardea-Torresdey, JL ;

Tiemann, KJ ;

Parsons, JG ;

Gamez, G ;

Herrera, I ;

Jose-Yacaman, M .

MICROCHEMICAL JOURNAL, 2002, 71 (2-3) :193-204

[7] Silver-based crystalline nanoparticles, microbially fabricated [J].

Klaus, T ;

Joerger, R ;

Olsson, E ;

Granqvist, CG .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (24) :13611-13614

[8] Reduction of Cr(VI) to Cr(III) by wetland plants: Potential for in situ heavy metal detoxification [J].

Lytle, CM ;

Lytle, FW ;

Yang, N ;

Qian, JH ;

Hansen, D ;

Zayed, A ;

Terry, N .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1998, 32 (20) :3087-3093

[9] STRUCTURE OF SILVER MICROCLUSTERS [J].

MONTANO, PA ;

ZHAO, J ;

RAMANATHAN, M ;

SHENOY, GK ;

SCHULZE, W ;

URBAN, J .

CHEMICAL PHYSICS LETTERS, 1989, 164 (2-3) :126-130

[10] Fungus-mediated synthesis of silver nanoparticles and their immobilization in the mycelial matrix: A novel biological approach to nanoparticle synthesis [J].

Mukherjee, P ;

Ahmad, A ;

Mandal, D ;

Senapati, S ;

Sainkar, SR ;

Khan, MI ;

Parishcha, R ;

Ajaykumar, PV ;

Alam, M ;

Kumar, R ;

Sastry, M .

NANO LETTERS, 2001, 1 (10) :515-519