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Nanotechnology Overview
PELCO® NanoXact™ and BioPure™ Silver Colloids

NEW! PELCO® NanoXact and BioPure
Gold and Silica Shell Gold Colloid

New Nanoparticles Developed for Ted Pella, Inc.

0.25ml Aliquots are now available for the 17nm Gold Colloids,
capped with Silica Shell or Silica Shell Amine Terminated.

2.02 x 1013 particles/ml and 1.0mg/ml gold mass concentration

Prod #DescriptionUnitPriceOrder / Quote
0.25ml supplied at a pH of 4.0, having zeta poetential of 24.0mV:
83420-175
17nm Gold Colloids capped with 10nm thick Silica Shell, 0.25ml
each
$55.00
Qty:
0.25ml supplied at a pH of 4.1, having zeta poetential of 30.5mV:
83520-175
17nm Gold Colloids capped with 10nm thick Silica Shell Amine Terminated, 0.25ml
each
60.00
Qty:


Citrate stabilized nanoparticles have a surface that is readily displaced by other biomolecules or polymers and is the capping agent of choice when using physisorption (noncovalent interactions such as van der Waals forces) to further modify the nanoparticle surface. Citrate capped particles are suspended in 2mM citrate buffer, pH 7.4. (Available soon).

Tannic acid is a multidentate capping agent that can be displaced with many thiol containing ligands. As a general rule, tannic acid coated nanoparticles are more stable at high particle concentrations, while citrate capped nanoparticles are more stable in higher ionic strength solutions. Tannic acid capped particles are suspended in water.

The PELCO® NanoXact™ and BioPure™ gold colloids (nanoparticles) are extensively characterized (see Technical Data below) and designed to meet the rigorous research demands in today’s market. They range in size from 5 to 100nm with 15 different sizes to choose from.

The gold colloids come with comprehensive specification sheets that provide all of the physical and optical characterization data necessary to integrate the nanoparticles into Surface Enhanced Raman Spectroscopy (SERS), plasmonic and photonic applications.

Product Description

  1. Capped/stabilized with tannic acid and negatively charged
  2. Tannic acid capped gold is characterized by UVVIS, TEM, DLS and zeta potential. Residual reactants have been removed.
  3. Available with silica shells.
  4. Available with functionalized silica shells (amine functionalized for a positively charged gold particle: ~30mV at pH 7.0)
  5. NanoXact™ gold colloids are available in 25, 100 and 500ml volumes - supplied in water
  6. BioPure™ gold colloids are 20X more concentrated than the NanoXact™ gold colloids and available in 1, 2 and 5ml volumes - supplied in water
  7. Both gold lines have been extensively washed without centrifugation to remove trace elements from the supernatant (<0.000001% of trace elements)

Stability and Storage

The PELCO® NanoXact™ and BioPure™ gold colloids should be stored at 4°C.

  • DO NOT FREEZE.
  • NanoXact™ line is stable for >6 months after purchase
  • BioPure™ line (high concentration) is stable for >3 months after purchase

Product testing indicates increased stability can be attained by following the storage recommendations.

30nm Gold Colloid
30nm Gold Colloid

1X Concentration - Supplied in Water
  
20X Concentration - Supplied in Water
NanoXact™ Technical Data
  
BioPure™ Technical Data
Au Mass
Concentration
Atomic (Au) Molarity
Particle
Concentration
Au Mass Percent
Max Optical Density
Peak Wave-
length
Particle
Diameter
(nm)
Au Mass
Concentration
Atomic (Au) Molarity
Particle
Concentration
Au Mass Percent
Max Optical Density
Peak
Wave-
length
(mg/mL) ±0.005
(mmol/L)
(particles/mL)
(%)
(cm-1)
nm
  
(mg/mL)
±0.02
(mmol/L)
(particles/mL)
(%)
(cm-1)
nm
0.05
0.254
3.95 x 1013
0.005
0.80
520
5
1 5.08 7.00 x 1014 0.1 16.0 520
0.05
0.254
1.44 x 1013
0.005
0.82
520
7
1 5.08 2.88 x 1014 0.1 16.4 520
0.05
0.254
4.94 x 1012
0.005
0.82
520
10
1 5.08 9.88 x 1013 0.1 16.4 520
0.05
0.254
2.86 x 1012
0.005
0.83
520
12
1 5.08 5.72 x 1013 0.1 16.6 520
0.05
0.254
1.46 x 1012
0.005
0.83
520
15
1 5.08 2.92 x 1013 0.1 16.6 520
0.05
0.254
1.01 x 1012
0.005
0.84
520
17
1 5.08 2.02 x 1013 0.1 16.8 520
0.05
0.254
6.18 x 1011
0.005
0.84
520
20
1 5.08 1.24 x 1013 0.1 16.9 520
0.05
0.254
1.83 x 1011
0.005
1.11
520
30
1 5.08 3.66 x 1012 0.1 22.1 520
0.05
0.254
7.72 x 1010
0.005
1.13
520
40
1 5.08 1.54 x 1012 0.1 22.6 520
0.05
0.254
3.95 x 1010
0.005
1.45
525
50
1 5.08 7.90 x 1011 0.1 29.1 525
0.05
0.254
2.29 x 1010
0.005
1.59
530
60
1 5.08 4.58 x 1011 0.1 31.8 530
0.05
0.254
1.44 x 1010
0.005
1.59
535
70
1 5.08 2.88 x 1011 0.1 31.8 535
0.05
0.254
9.65 x 109
0.005
1.57
545
80
1 5.08 1.93 x 1011 0.1 31.5 545
0.05
0.254
6.78 x 109
0.005
1.32
555
90
1 5.08 1.36 x 1011 0.1 26.4 555
0.05
0.254
4.94 x 109
0.005
1.01
555
100
1 5.08 9.88 x 1010 0.1 20.1 555

Technical Data Sheet for 80nm PELCO® NanoXact™ Gold Nanoparticles

Technical Data Sheet for 5nm PELCO® Tannic NanoXact™ Gold Nanoparticles

Technical Data Sheet for 60nm PELCO® BioPure™ Gold Nanoparticles

PELCO® NanoXact™ Gold Colloids - Supplied at 1X Concentration in Milli-Q Water

Tannic Acid Capped
Size (nm)Particles/ml 25 mlPrice $50.00/ea 100 mlPrice $150.00/ea 500 mlPrice $500.00/ea
5nm3.95 x 1013
 
82150-5
Qty:
 
82160-5
Qty:
 
82180-5
Qty:
7nm1.44 x 1013
 
82150-7
Qty:
 
82160-7
Qty:
 
82180-7
Qty:
10nm4.94 x 1012
 
82150-10
Qty:
 
82160-10
Qty:
 
82180-10
Qty:
12nm2.86 x 1012
 
82150-12
Qty:
 
82160-12
Qty:
 
82180-12
Qty:
15nm1.46 x 1012
 
82150-15
Qty:
 
82160-15
Qty:
 
82180-15
Qty:
17nm1.01 x 1012
 
82150-17
Qty:
 
82160-17
Qty:
 
82180-17
Qty:
20nm6.81 x 1011
 
82150-20
Qty:
 
82160-20
Qty:
 
82180-20
Qty:
30nm1.83 x 1011
 
82150-30
Qty:
 
82160-30
Qty:
 
82180-30
Qty:
40nm7.72 x 1010
 
82150-40
Qty:
 
82160-40
Qty:
 
82180-40
Qty:
50nm3.95 x 1010
 
82150-50
Qty:
 
82160-50
Qty:
 
82180-50
Qty:
60nm2.29 x 1010
 
82150-60
Qty:
 
82160-60
Qty:
 
82180-60
Qty:
70nm1.44 x 1010
 
82150-70
Qty:
 
82160-70
Qty:
 
82180-70
Qty:
80nm9.55 x 109
 
82150-80
Qty:
 
82160-80
Qty:
 
82180-80
Qty:
90nm6.78 x 109
 
82150-90
Qty:
 
82160-90
Qty:
 
82180-90
Qty:
100nm4.94 x 109
 
82150-100
Qty:
 
82160-100
Qty:
 
82180-100
Qty:


PELCO® BioPure™ Gold Colloids - Supplied at 20X Concentration in Milli-Q Water

Tannic Acid Capped
Size (nm)Particles/ml 1 mlPrice $200.00/ea 2 mlPrice $350.00/ea 5 mlPrice $750.00/ea
5nm7.00 x 1014
 
83110-5
Qty:
 
83120-5
Qty:
 
83130-5
Qty:
7nm2.88 x 1014
 
83110-7
Qty:
 
83120-7
Qty:
 
83130-7
Qty:
10nm9.88 x 1013
 
83110-10
Qty:
 
83120-10
Qty:
 
83130-10
Qty:
12nm5.72 x 1013
 
83110-12
Qty:
 
83120-12
Qty:
 
83130-12
Qty:
15nm2.92 x 1013
 
83110-15
Qty:
 
83120-15
Qty:
 
83130-15
Qty:
17nm2.02 x 1013
 
83110-17
Qty:
 
83120-17
Qty:
 
83130-17
Qty:
20nm1.24 x 1013
 
83110-20
Qty:
 
83120-20
Qty:
 
83130-20
Qty:
30nm3.66 x 1012
 
83110-30
Qty:
 
83120-30
Qty:
 
83130-30
Qty:
40nm1.54 x 1012
 
83110-40
Qty:
 
83120-40
Qty:
 
83130-40
Qty:
50nm7.90 x 1011
 
83110-50
Qty:
 
83120-50
Qty:
 
83130-50
Qty:
60nm4.58 x 1011
 
83110-60
Qty:
 
83120-60
Qty:
 
83130-60
Qty:
70nm2.88 x 1011
 
83110-70
Qty:
 
83120-70
Qty:
 
83130-70
Qty:
80nm1.93 x 1011
 
83110-80
Qty:
 
83120-80
Qty:
 
83130-80
Qty:
90nm1.36 x 1011
 
83110-90
Qty:
 
83120-90
Qty:
 
83130-90
Qty:
100nm9.88 x 1010
 
83110-100
Qty:
 
83120-100
Qty:
 
83130-100
Qty:

PELCO® BioPure™ Gold Colloids Capped with a 10nm Thick Silica Shell

20x Concentrated Supplied in Water
Size (nm)Particles/ml 1 mlPrice $400.00/ea 2 mlPrice $700.00/ea 5 mlPrice $1,500.00/ea
17nm2.02 x 1013
 
83410-17
Qty:
 
83420-17
Qty:
 
83430-17
Qty:
30nm3.66 x 1012
 
83410-30
Qty:
 
83420-30
Qty:
 
83430-30
Qty:
50nm7.90 x 1011
 
83410-50
Qty:
 
83420-50
Qty:
 
83430-50
Qty:


PELCO® BioPure™ Gold Colloids Capped with Amine Terminated 10nm Thick Silica Shell

20x Concentrated Supplied in Water
Size (nm)Particles/ml 1 mlPrice $500.00/ea 2 mlPrice $800.00/ea 5 mlPrice $1,700.00/ea
17nm2.02 x 1013
 
83510-17
Qty:
 
83520-17
Qty:
 
83530-17
Qty:
30nm3.66 x 1012
 
83510-30
Qty:
 
83520-30
Qty:
 
83530-30
Qty:
50nm7.90 x 1011
 
83510-50
Qty:
 
83520-50
Qty:
 
83530-50
Qty: