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Immunogold Stains Overview
NEW PELCO® Gold Nanoparticles – Gold Colloids

diagnostic grade gold conjugates

biocell

Unconjugated Gold Sols - Gold Colloids

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.

gold colloids

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, Unconjugated Gold Sols (88KB PDF)


Prod # Description Unit Price Order / Quote
5nm: 5.0 x 1013 particles/mL
15702-20 5nm Gold Colloid, 20mL each $101.25
Qty:
15702-1 5nm Gold Colloid, 100mL each 377.50
Qty:
15702-1L 5nm Gold Colloid, 1L each 2274.00
Qty:
10nm: 5.7 x 1012 particles/mL
15703-20 10nm Gold Colloid, 20mL each 101.25
Qty:
15703-1 10nm Gold Colloid, 100mL each 390.75
Qty:
15703-1L 10nm Gold Colloid, 1L each 1896.50
Qty:
15nm: 1.4 x 1012 particles/mL
15704-20 15nm Gold Colloid, 20mL each 101.25
Qty:
15704-1 15nm Gold Colloid, 100mL each 390.75
Qty:
15704-1L 15nm Gold Colloid, 1L each 1963.50
Qty:
20nm: 7.0 x 1011 particles/mL
15705-20 20nm Gold Colloid, 20mL each 101.25
Qty:
15705-1 20nm Gold Colloid, 100mL each 390.75
Qty:
15705-1L 20nm Gold Colloid, 1L each 1963.50
Qty:
30nm: 2.0 x 1011 particles/mL
15706-20 30nm Gold Colloid, 20mL each 101.25
Qty:
15706-1 30nm Gold Colloid, 100mL each 390.75
Qty:
15706-1L 30nm Gold Colloid, 1L each 2104.25
Qty:
40nm: 9.0 x 1010 particles/mL
15707-20 40nm Gold Colloid, 20mL each 101.25
Qty:
15707-1 40nm Gold Colloid, 100mL each 358.50
Qty:
15707-1L 40nm Gold Colloid, 1L each 2035.75
Qty:
50nm: 4.5 x 1010 particles/mL
15708-20 50nm Gold Colloid, 20mL each 101.25
Qty:
15708-5 50nm Gold Colloid, 100mL each 370.75
Qty:
15708-1L 50nm Gold Colloid, 1L each 1906.75
Qty:
60nm: 2.6 x 1010 particles/mL
15709-20 60nm Gold Colloid, 20mL each 101.25
Qty:
15708-6 60nm Gold Colloid, 100mL each 370.75
Qty:
15709-1L 60nm Gold Colloid, 1L each 2022.90
Qty:
80nm: 1.1 x 1010 particles/mL
15710-20 80nm Gold Colloid, 20mL each 101.25
Qty:
15708-8 80nm Gold Colloid, 100mL each 244.75
Qty:
15710-1L 80nm Gold Colloid, 1L each 1963.50
Qty:
100nm: 5.6 x 109 particles/mL
15711-20 100nm Gold Colloid, 20mL each 107.50
Qty:
15708-9 100nm Gold Colloid, 100mL each 384.00
Qty:
150nm: 1.7 x 109 particles/mL
15712-20 150nm Gold Colloid, 20mL each 97.75
Qty:
15709-10 150nm Gold Colloid, 100mL each 365.00
Qty:
200nm: 7.0 x 108 particles/mL
15713-20 200nm Gold Colloid, 20mL each 94.50
Qty:
15709-11 200nm Gold Colloid, 100mL each 419.00
Qty:
250nm: 3.6 x 108 particles/mL
15714-20 250nm Gold Colloid, 20mL each 107.50
Qty:
15709-12 250nm Gold Colloid, 100mL each 387.50
Qty: