Gold nanorod with high yield and great slenderness ratio and preparation method of gold nanorod

A technology of gold nanorods and large aspect ratio, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc. It can solve the problems that are difficult to precisely control and stop, and unfavorable for the large-scale application of gold nanorods , to achieve the effects of inhibiting material exchange, inhibiting lateral growth, and good controllability
CN102962469AInactive Publication Date: 2013-03-13NANOSEEDZ
5 Cites 22 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
NANOSEEDZ
Publication Date
2013-03-13
Estimated Expiration
Not applicable ยท inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a gold nanorod with high yield and great slenderness ratio and a preparation method of the gold nanorod. A small number of hexadecylamine type cation surfactant ingredients with greater head groups are added into growth solution of the traditional seed growth method, the hexadecyl trimethyl ammonium bromide double-layer structure adsorbed on the surface of a gold rod can be partially substituted in the growth process through the ingredient addition, and the greater heat groups can tightly wrap the gold nanorod, so the substance exchange between the naked side surface of the gold nanorod and the growth solution is effectively inhabited, because the top point of the gold rod has greater curvature, the influence of the wrapping effect on the growth is less, and the slender gold nanorod with great slenderness ratio is obtained. For the continuous adjustment of the resonant wavelength of plasmas at the longitudinal surface of the synthesized gold nanorod, chloroauric acid hydrated is adopted as an oxidant so that the gold nanorod is gradually shortened, and the diameter of the gold nanorod is maintained unchanged.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The application of the present invention relates to a gold nanorod with high yield and large aspect ratio and a preparation method thereof, and belongs to the technical field of nanomaterial preparation. Background technique

[0002] Gold nanorods are rod-shaped gold nanoparticles with a scale ranging from a few nanometers to hundreds of nanometers. In recent years, due to their unique surface plasmon properties, they have received extensive attention from researchers. They are used in biological sensing, optical storage, catalysis, and nanoelectronics. And clinical treatment and other fields show huge application prospects.

[0003] A variety of methods for preparing gold nanorods have been developed, including electrochemical reduction, photochemical synthesis, and seed growth methods. Among these methods, the seed growth method proposed and improved by the groups led by American scientists Murphy and EI~Sayed respectively is the most mature, and can obtai...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More