Nanometer-sized gold particles of uniform shape and size are invaluable
tools in nanotechnology (assembled arrays), light scattering (elastic - plasmon resonance;
inelastic - Raman effect) and for single molecule detection. Gold nanoparticles
can be attached to proteins, alkanethiols and DNA by various methods. Silver
nanoparticles are evolving similar functional characteristics to their gold counterparts.
Ted Pella, Inc. is the leader in offering a wide range of gold
nanoparticles for these applications. Talk to our applications engineer to find out
about the new developments/applications. We are constantly developing new gold
colloids for new nanotechnology applications.
The nanometer sized gold colloids can be characterized as follows:
- Monodispersed gold nanoparticles supplied in water, having trace amounts of citrate,
tannic acid and potassium carbonate
- Citrate stabilized with a net negative surface charge (Langmuir 2005, 21:9303-9307)
- Gold colloid pH's range from above 5 for 5nm gold to less than 9 for the larger sized
particles (pH increases with size).
- Available in a size range from 5 to 250nm
- The particles are invaluable tools for light scattering, either Raman or plasmon
resonance (Analytical Chemistry 1999, 71:4903-4908; Analytical BioChemistry 1998, 262:137-156)
5nm to 250nm sizes scatter light to different degrees and the solution color
changes with increasing particle size.

These products are known to be stable for a minimum of one year after opening.
To avoid contamination after opening, it is best to handle the product under clean room conditions
to avoid contamination by dust or other airborne contaminants. Temperatures for storage, after opening, can vary from
4-8°C (39-46°F) to room temperature depending on whether the application is diagnostic or
research oriented. The colloid is stable on boiling and destroyed by freezing.
When storing the product below 8°C (46°F) it is the customer's responsibility to ensure that
their refrigerator can maintain a constant temperature in the
range noted above.
NO FRIDAY/WEEKEND SHIPMENTS
All shipments of Gold Conjugate products must be
for
next day delivery due to temperature
requirements. |
SDS Safety Data Sheet for Unconjugated Gold Sols (88KB PDF)
NOTE: Empty cells in the product table below denote items that are no longer available from the manufacturer.
Size (nm)
| Particles/ml
|
| 20 ml
| Price 72.00/ea
|
| 100 ml
| Price 282.00/ea
|
| 1 L
| Price 1843.00/ea
|
|
5nm
| 5.0 x 1013
|
| 15702-20
|
|
| 15702-1
|
|
| 15702-1L
|
|
10nm
| 5.7 x 1012
|
| 15703-20
|
|
| 15703-1
|
|
| 15703-1L
|
|
15nm
| 1.4 x 1012
|
| 15704-20
|
|
| 15704-1
|
|
| 15704-1L
|
|
20nm
| 7.0 x 1011
|
| 15705-20
|
|
| 15705-1
|
|
|
|
|
30nm
| 2.0 x 1011
|
| 15706-20
|
|
| 15706-1
|
|
| 15706-1L
|
|
40nm
| 9.0 x 1010
|
| 15707-20
|
|
|
|
|
|
|
|
50nm
| 4.5 x 1010
|
| 15708-20
|
|
| 15708-5
|
|
| 15708-1L
|
|
60nm
| 2.6 x 1010
|
| 15709-20
|
|
| 15708-6
|
|
| 15709-1L
|
|
80nm
| 1.1 x 1010
|
| 15710-20
|
|
| 15708-8
|
|
| 15710-1L
|
|
100nm
| 5.6 x 109
|
| 15711-20
|
|
| 15708-9
|
|
|
|
|
150nm
| 1.7 x 109
|
| 15712-20
|
|
| 15709-10
|
|
|
|
|
200nm
| 7.0 x 108
|
| 15713-20
|
|
| 15709-11
|
|
|
|
|
250nm
| 3.6 x 108
|
| 15714-20
|
|
| 15709-12
|
|
|
|
|
|