Materials Science and Engineering/Materials for Biomedical Applications
Synthesis of Silver Nanocubes
[edit | edit source]Synthesis of perfect silver nanocubes by a simple polyol process
Process
[edit | edit source]Simple poly(vinyl pyrrolidone)-directed polyol synthesis process.
Parameters
[edit | edit source]- Process Parameters
- Poly(vinyl pyrrolidone)/AgNO3 ratio R
- Reaction temperature T
- Product Parameters
- Morphology
- Size
- Growth Mechanism
- Thermodynamically Controlled
- Kinetically Controlled
Product Properties
[edit | edit source]- Ag nanocubes
- Average edge length of 230 nm
- Sharp edges and corners
- Optical Properties
- Attractive plasma resonance red-shift
Article
[edit | edit source]http://www.mrs.org/s_mrs/sec_subscribe.asp?CID=8951&DID=196410&action=detail
Controlled Synthesis of Monodisperse Silver Nanocubes in Water
Process
[edit | edit source]In water on the basis of HTAB-modified silver mirror reaction at 120 C (HTAB, n-hexadecyltrimethylammonium bromide)
Parameters
[edit | edit source]- Process Parameters
- Temperature: 120 C
Product Properties
[edit | edit source]- Monodisperse silver nanocubes
- Edge length of 55 ± 5 nm
- Single crystal bonded by six {200} facets
- Assemble into two-dimensional arrays
Article
[edit | edit source]http://pubs.acs.org/cgi-bin/abstract.cgi/jacsat/2004/126/i41/abs/ja046037r.html
Shape-Controlled Synthesis of Gold and Silver Nanoparticles
Process
[edit | edit source]Reducing silver nitrate with ethylene glycol in the presence of poly(vinyl pyrrolidone) (PVP)
Parameters
[edit | edit source]Process Parameters
[edit | edit source]- Molar ratio of PVP and its molar ratio (in terms of repeating unit) relative to silver nitrate
Product Parameters
[edit | edit source]- Geometric shape
- Size of the product
Product Properties
[edit | edit source]- Single crystals
- Slightly truncated shape
- Bounded by {100}, {110}, and {111} facets
Link
[edit | edit source]Synthesis and Galvanic Replacement Reaction of Silver Nanocubes in Organic Medium
Process
[edit | edit source]- Polyol process in which silver nitrate is reduced by ethylene glycol in the presence of a capping agent, poly(vinylpyrrolidone) (PVP)
- A ligand exchange reaction was used to replace the PVP with another capping agent, allowing the nanocubes to be soluble in chloroform
- Oleylamine, oleic acid, and decane-thiol were among the ligands investigated
Shape-Controlled Synthesis of Metal Nanostructures: The Case of Silver
Process
[edit | edit source]- Growth mechanisms for silver nanocubes, nanowires, and nanospheres produced through a polymer-mediated polyol process.
Parameters
[edit | edit source]Process Parameters
[edit | edit source]- Concentration of AgNO3 (the precursor to silver)
- Molar ratio between poly(vinylpyrrolidone) (PVP, the capping agent) and AgNO3
- Strength of chemical interaction between PVP and various crystallographic planes of silver
- Crystallinity of a seed
- Extent of the PVP coverage on the seed
Product Parameters
[edit | edit source]- Crystallinity of seeds (e.g., single crystal versus decahedral multiply twinned particles)
- Morphology of final product
Article
[edit | edit source]http://www3.interscience.wiley.com/cgi-bin/abstract/109800818/ABSTRACT
Morphology and size-controlled synthesis of silver nanoparticles in aqueous surfactant polymer solutions
Process
[edit | edit source]Poly(methyl vinyl ether) used with precursor AgNO3 solution reduced using NaOH
Product Parameters
[edit | edit source]Average length of 29 nm
Article
[edit | edit source]http://www.springerlink.com/content/b8280v1807904197/fulltext.pdf
Synthesis of Gold Nanorods
[edit | edit source]Hyperthermic effects of gold nanorods on tumor cells
Gold Nanorods: Electrochemical Synthesis and Optical Properties
Wet Chemical Synthesis of High Aspect Ratio Cylindrical Gold Nanorods