Polysaccharide-induced synthesis of gold nanoparticles and their characterization

被引：0
|
作者：
Wei Dong-Wei [1 ]
Qian Wei-Ping [1 ]
机构：
[1] Southeast Univ, Dept Biol Sci & Med Engn, State Key Lab Bioelect, Nanjing 210096, Peoples R China
来源：
ACTA CHIMICA SINICA | 2007年 / 65卷 / 05期
关键词：
chitosan; reducing agent; environmental-friendly; gold nanoparticles; aging;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Highly stable gold nanoparticles (GNPs) have been prepared by heating chitosan (CHIT) and HAuCl4 aqueous solution without the additional step of introducing other reducing agents and protecting agents. The samples were characterized by UV-Vis, FI-IR, TGA-DTA and TEM. Results indicated that the properties of resultant GNPs could be controlled by altering the CHIT concentration and the aging could be used as a control parameter in GNPs growth. Kinetic results suggested that the GNPs growth during aging should be a CHIT-mediated autocatalytic process. Fourier transform infrared spectroscopy (FTIR) showed that the hydroxyl in molecular CHIT or its hydrolytic product was oxidized to carbonyl groups, resulting in the formation of GNPs. Moreover, the abounding existence of raw materials made it amenable to a green industrial production and our study may help to clarify some of the obscure mechanisms of nanoparticle formation in solution at present.
引用
收藏
页码：379 / 384
页数：6
相关论文
共 30 条
  • [1] Extracellular biosynthesis of monodisperse gold nanoparticles by a novel extremophilic actinomycete, Thermomonospora sp.
    Ahmad, A
    Senapati, S
    Khan, MI
    Kumar, R
    Sastry, M
    [J]. LANGMUIR, 2003, 19 (08) : 3550 - 3553
  • [2] Bohren C. F., 1983, ABSORPTION SCATTERIN
  • [3] Chemistry and properties of nanocrystals of different shapes
    Burda, C
    Chen, XB
    Narayanan, R
    El-Sayed, MA
    [J]. CHEMICAL REVIEWS, 2005, 105 (04) : 1025 - 1102
  • [4] Colloid Au-enhanced DNA immobilization for the electrochemical detection of sequence-specific DNA
    Cai, H
    Xu, C
    He, PG
    Fang, YZ
    [J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 510 (1-2) : 78 - 85
  • [5] GOLD SOL FORMATION MECHANISMS - ROLE OF COLLOIDAL STABILITY
    CHOW, MK
    ZUKOSKI, CF
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1994, 165 (01) : 97 - 109
  • [6] Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology
    Daniel, MC
    Astruc, D
    [J]. CHEMICAL REVIEWS, 2004, 104 (01) : 293 - 346
  • [7] Gold nanoparticle embedded, self-sustained chitosan films as substrates for surface-enhanced Raman scattering
    dos Santos, DS
    Goulet, PJG
    Pieczonka, NPW
    Oliveira, ON
    Aroca, RF
    [J]. LANGMUIR, 2004, 20 (23) : 10273 - 10277
  • [8] Antioxidant-potentiality of gold-chitosan nanocomposites
    Esumi, K
    Takei, N
    Yoshimura, T
    [J]. COLLOIDS AND SURFACES B-BIOINTERFACES, 2003, 32 (02) : 117 - 123
  • [9] Facile in situ synthesis of noble metal nanoparticles in porous cellulose fibers
    He, JH
    Kunitake, T
    Nakao, A
    [J]. CHEMISTRY OF MATERIALS, 2003, 15 (23) : 4401 - 4406
  • [10] Synthesis of polysaccharide-stabilized gold and silver nanoparticles: a green method
    Huang, HZ
    Yang, XR
    [J]. CARBOHYDRATE RESEARCH, 2004, 339 (15) : 2627 - 2631
123