Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method for gold nanoparticle bipyramids

A gold nano-bicone technology, applied in nanotechnology, metal processing equipment, transportation and packaging, etc., can solve the rare problems of gold nano-bicones, and achieve the effect of fast response, mild conditions and simple operation

Inactive Publication Date: 2016-08-10
DONGHUA UNIV
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There have been many reports on various preparation methods of gold nano-bipyramids with specific shapes, but the reports on gold nano-bipyramids are relatively rare, and the synthesis method is simple, the reaction conditions are mild, and the relevant reagents used relatively common

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method for gold nanoparticle bipyramids
  • Preparation method for gold nanoparticle bipyramids
  • Preparation method for gold nanoparticle bipyramids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 A kind of preparation method of gold nano bipyramid

[0034] Such as figure 1 As shown, it specifically includes the following steps:

[0035] (1) Preparation of gold nano-pyramidal seed solution: 0.25ml 0.01M chloroauric acid solution and 7.5ml 0.1M dodecyltrimethylammonium bromide solution were mixed, magnetically stirred for 2min to obtain a bright yellow liquid, Add 0.6 ml of 0.01 M sodium borohydride solution to the bright yellow liquid to obtain a brown solution, and stand still at 25° C. for 2 hours to obtain a gold nano bipyramid seed liquid.

[0036] (2) Preparation of gold nano-pyramid growth solution: get 3ml 0.001M chloroauric acid solution, 20 μL 1M hydrochloric acid solution and 3ml 0.01M dodecyltrimethylammonium bromide solution, gently stir to obtain a yellow solution, and add to Add 40 μL of 0.01M silver nitrate solution and 60 μL of 0.1M ascorbic acid solution to the yellow solution, and place it under light for 25 hours under the condit...

Embodiment 2

[0040] Embodiment 2 A kind of preparation method of gold nano bipyramid

[0041] Specifically include the following steps:

[0042] (1) Preparation of gold nano double cone seed solution: mix 0.6ml 0.01M chloroauric acid solution and 5ml 0.4M ℃ TAB solution solution, stir magnetically for 3min to obtain a bright yellow liquid, add 0.6ml to the bright yellow liquid 0.1 M sodium borohydride solution to obtain a brown solution, and stand still at 26° C. for 1.5 hours to obtain a gold nano bipyramid seed solution.

[0043] (2) Preparation of gold nano-pyramidal growth solution: get 4ml of 0.003M chloroauric acid solution, 10 μL of 0.1M hydrochloric acid solution and 4ml of 0.005M dodecyltrimethylammonium bromide solution, gently stir to obtain a yellow solution, 60 μL of 0.006M silver nitrate solution and 80 μL of 0.1M ascorbic acid solution were added to the yellow solution, and the yellow solution gradually became colorless after being exposed to light for 6 hours at 20°C to pr...

Embodiment 3

[0045] Embodiment 3 A kind of preparation method of gold nano bipyramid

[0046] Specifically include the following steps:

[0047] (1) Preparation of gold nano-pyramidal seed liquid: the chloroauric acid solution of 0.3ml 0.02M and the dodecyltrimethylammonium bromide solution solution of 6ml 0.3M were mixed, magnetically stirred for 2min to obtain a bright yellow liquid, and added to Add 1 ml of 0.05M sodium borohydride solution to the bright yellow liquid to obtain a brown solution, and stand at 30° C. for 1 hour to obtain a gold nano bipyramid seed liquid.

[0048] (2) Preparation of gold nano-pyramid growth solution: take 2ml of 0.01M chloroauric acid solution, 20 μL of 0.5M hydrochloric acid solution and 1ml of 0.02M dodecyltrimethylammonium bromide solution, gently stir to obtain a yellow solution, Add 40 μL of 0.01M silver nitrate solution and 100 μL of 0.05M ascorbic acid solution to the yellow solution, and place it under light for 16 hours at 50°C, the yellow solut...

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

PUM

PropertyMeasurementUnit
volumeaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method for gold nanoparticle bipyramids. According to the method, chloroauric acid solutions are added into dodecyl trimethyl ammonium bromide solutions and sodium borohydride solutions for obtaining hydrosol of nanoscale gold particles, the hydrosol serves as seed solutions, and then the seed solutions are added into growth solutions for generating gold nanoparticle bipyramid particles; the preparation process is simple, the reaction condition is mild, and few cheap chemical reagents except for chloroauric acid are used.

Description

technical field [0001] The invention relates to a preparation method of nano gold particles, in particular to a preparation method of gold nano bipyramids. Background technique [0002] Gold nanoparticles have unique physical and chemical properties and biological properties. After surface modification, they can obtain biological imaging, photothermal therapy, targeted drug delivery, etc., and have extremely high potential application value in the clinical diagnosis and treatment of cancer. Taking photothermal therapy as an example, due to the unique optical properties of gold nano-double pyramids, surface plasmon resonance (SPR) can be generated under certain conditions, and the absorbed light energy can also be converted into thermal energy, that is, photothermal therapy. conversion effect. [0003] Gold nanobipyramids with specific shapes have received more and more attention due to their larger specific surface area than spherical gold nanobipyramids, such as gold nanor...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B82Y40/00
CPCB82Y40/00B22F9/24B22F1/0553B22F1/054
Inventor 权静邵栋杰沈发伟周开春
Owner DONGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com