# Materials Science and Engineering/Materials for Biomedical Applications
## Synthesis of perfect silver nanocubes by a simple polyol process
#### Process

Simple poly(vinyl pyrrolidone)-directed polyol synthesis process.

##### Parameters

* Process Parameters
** Poly(vinyl pyrrolidone)/AgNO3 ratio R
** Reaction temperature T
* Product Parameters
** Morphology
** Size
* Growth Mechanism
** Thermodynamically Controlled
** Kinetically Controlled

#### Product Properties

* Ag nanocubes
* Average edge length of 230 nm
* Sharp edges and corners
* Optical Properties
** Attractive plasma resonance red-shift

#### Article

http://www.mrs.org/s_mrs/sec_subscribe.asp?CID=8951&DID=196410&action=detail

## Controlled Synthesis of Monodisperse Silver Nanocubes in Water
#### Process

In water on the basis of HTAB-modified silver mirror reaction at 120 C (HTAB, n-hexadecyltrimethylammonium bromide)

##### Parameters

* Process Parameters
** Temperature: 120 C

#### Product Properties

* Monodisperse silver nanocubes
* Edge length of 55 ± 5 nm
* Single crystal bonded by six {200} facets
* Assemble into two-dimensional arrays

#### Article

http://pubs.acs.org/cgi-bin/abstract.cgi/jacsat/2004/126/i41/abs/ja046037r.html

## Shape-Controlled Synthesis of Gold and Silver Nanoparticles
#### Process

Reducing silver nitrate with ethylene glycol in the presence of poly(vinyl pyrrolidone) (PVP)

#### Parameters
##### Process Parameters

* Molar ratio of PVP and its molar ratio (in terms of repeating unit) relative to silver nitrate

##### Product Parameters

* Geometric shape
* Size of the product

#### Product Properties

* Single crystals
* Slightly truncated shape
** Bounded by {100}, {110}, and {111} facets

#### Link

http://www.sciencemag.org/cgi/content/full/298/5601/2176?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&fulltext=Puntes%2C+V.F.&searchid=1&FIRSTINDEX=0&resourcetype=HWCIT

## Synthesis and Galvanic Replacement Reaction of Silver Nanocubes in Organic Medium
#### Process

* 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

* Growth mechanisms for silver nanocubes, nanowires, and nanospheres produced through a polymer-mediated polyol process.

#### Parameters
##### Process Parameters

* 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

* Crystallinity of seeds (e.g., single crystal versus decahedral multiply twinned particles)
* Morphology of final product

#### Article

http://www3.interscience.wiley.com/cgi-bin/abstract/109800818/ABSTRACT

## Morphology and size-controlled synthesis of silver nanoparticles in aqueous surfactant polymer solutions
##### Process

Poly(methyl vinyl ether) used with precursor AgNO3 solution reduced using NaOH

##### Product Parameters

Average length of 29 nm

#### Article

http://www.springerlink.com/content/b8280v1807904197/fulltext.pdf

## Synthesis of Gold Nanorods

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