in 

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.

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

  • Capped/stabilized with tannic acid and negatively charged
  • Tannic acid capped gold is characterized by UVVIS, TEM, DLS and zeta potential. Residual reactants have been removed.
  • NanoXact™ gold colloids are available in 25, 100 and 500ml volumes - supplied in water
  • BioPure™ gold colloids are 20X more concentrated than the NanoXact™ gold colloids and available in 1 and 5ml volumes - supplied in water
  • Both gold lines have been extensively washed without centrifugation to remove trace elements from the supernatant (<0.000001% of trace elements)
  • PELCO NanoXact™ also available with 20nm silica shells, zeta potential -25 to -55mV in ethanol and 20nm aminated silica shells, zeta potential +20 to +50mV in ethanol, in 1, 5, 10ml respectively

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
- - - - - -
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
- - - - - -
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
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
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

NOTE:
All shipments of Gold Conjugate products must be for next day delivery due to temperature requirements.
No Friday (weekend) shipments.



NanoXact Gold 1x

Tannic Acid Capped

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

MSDS (97KB PDF)

NOTE: Empty cells in the product table below denote items that are no longer available from the manufacturer.

Size (nm) Particles/ml   25 ml Price 65.00/ea   100 ml Price 205.00/ea   500 ml Price 695.00/ea
5nm 3.95 x 1013   82150-5
Qty:
  82160-5
Qty:
  82180-5
Qty:
10nm 4.94 x 1012   82150-10
Qty:
  82160-10
Qty:
  82180-10
Qty:
15nm 1.46 x 1012   82150-15
Qty:
  82160-15
Qty:
  82180-15
Qty:
20nm 6.81 x 1011   82150-20
Qty:
  82160-20
Qty:
  82180-20
Qty:
30nm 1.83 x 1011               82180-30
Qty:
40nm 7.72 x 1010   82150-40
Qty:
  82160-40
Qty:
  82180-40
Qty:
50nm 3.95 x 1010   82150-50
Qty:
  82160-50
Qty:
  82180-50
Qty:
60nm 2.29 x 1010   82150-60
Qty:
  82160-60
Qty:
  82180-60
Qty:
70nm 1.44 x 1010   82150-70
Qty:
  82160-70
Qty:
  82180-70
Qty:
80nm 9.55 x 109   82150-80
Qty:
  82160-80
Qty:
  82180-80
Qty:
100nm 4.94 x 109   82150-100
Qty:
  82160-100
Qty:
  82180-100
Qty:




NanoXact Gold 20x

Tannic Acid Capped

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

MSDS (100KB PDF)

Size (nm) Particles/ml   1 ml Price 245.00/ea   5 ml Price 1045.00/ea
5nm 7.00 x 1014   83110-5
Qty:
  83130-5
Qty:
7nm 2.88 x 1014   83110-7
Qty:
  83130-7
Qty:
10nm 9.88 x 1013   83110-10
Qty:
  83130-10
Qty:
12nm 5.72 x 1013   83110-12
Qty:
  83130-12
Qty:
15nm 2.92 x 1013   83110-15
Qty:
  83130-15
Qty:
20nm 1.24 x 1013   83110-20
Qty:
  83130-20
Qty:
30nm 3.66 x 1012   83110-30
Qty:
  83130-30
Qty:
40nm 1.54x 1012   83110-40
Qty:
  83130-40
Qty:
50nm 7.90 x 1011   83110-50
Qty:
  83130-50
Qty:
60nm 4.58 x 1011   83110-60
Qty:
  83130-60
Qty:
70nm 2.88 x 1011   83110-70
Qty:
  83130-70
Qty:
80nm 1.93 x 1011   83110-80
Qty:
  83130-80
Qty:
100nm 9.88 x 1010   83110-100
Qty:
  83130-100
Qty:




Silica Coated Gold

PELCO® NanoXact™ Gold Colloids Capped with a 20nm Thick Silica Shell (1ml and 5ml)

1mg/ml concentration supplied in ethanol - zeta potential of -25 to -55mV:

Size (nm) Particles/ml   1 ml Price 275.00/ea   5 ml Price 1150.00/ea
20nm 1.24 x 1013   83410-20
Qty:
  83430-20
Qty:
50nm 7.92 x 1011   83410-50
Qty:
  83430-50
Qty:
70nm 2.89 x 1011   83410-70
Qty:
  83430-70
Qty:
100nm 9.90 x 1010   83410-100
Qty:
  83430-100
Qty:


PELCO®NanoXact™ Gold Colloids Capped with a 20nm Thick Silica Shell (10ml)

1mg/ml concentration supplied in ethanol - zeta potential of -25 to -55mV:

Size (nm) Particles/ml 10 ml Price 1965.00/ea
20nm 1.24 x 1013 83440-20
Qty:
50nm 7.92 x 1011 83440-50
Qty:
70nm 2.89 x 1011 83440-70
Qty:
100nm 9.90 x 1010 83440-100
Qty:


PELCO® NanoXact™ Gold Colloids Capped with Amine Terminated 20nm Thick Silica Shell (1ml and 5ml)

1mg/ml concentration supplied in ethanol - zeta potential of +20 to +50mV:

Size (nm) Particles/ml   1 ml Price 275.00/ea   5 ml Price 1150.00/ea
20nm 1.24 x 1013   83510-20
Qty:
  83530-20
Qty:
50nm 7.92 x 1011   83510-50
Qty:
  83530-50
Qty:
70nm 2.89 x 1011   83510-70
Qty:
  83530-70
Qty:
100nm 9.90 x 1010   83510-100
Qty:
  83530-100
Qty:


PELCO® NanoXact™ Gold Colloids Capped with Amine Terminated 20nm Thick Silica Shell (10ml)

1mg/ml concentration supplied in ethanol - zeta potential of +20 to +50mV:

Size (nm) Particles/ml 10 ml Price 1150.00/ea
20nm 1.24 x 1013 83540-20
Qty:
50nm 7.92 x 1011 83540-50
Qty:
70nm 2.89 x 1011 83540-70
Qty:
100nm 9.90 x 1010 83540-100
Qty:


NEW PELCO® NanoXact™
Gold Nanospheres-PVP (dried)

Gold nanoparticle powder has two big advantages, it allows the user to determine the final concentration of the solution, and gives the user a choice in the type of solvent they wish to use (such as water, DMSO, ethanol, methanol, etc). The spheres are coated with PVP (polyvinylpyrrolidone), which helps maintain the stability of the particles when they are deposited. We offer several sizes of spheres from 5-100nm.

Prod # Description Unit Price Order / Quote
83560-1 5nm gold nanospheres, dried, 1mg each $155.00
Qty:
83560-5 5nm gold nanospheres, dried, 5mg each 625.00
Qty:
83560-10 5nm gold nanospheres, dried, 10mg each 1020.00
Qty:
83560-30 5nm gold nanospheres, dried, 30mg each 2395.00
Qty:
83610-1 40nm gold nanospheres, dried, 1mg each 155.00
Qty:
83610-5 40nm gold nanospheres, dried, 5mg each 625.00
Qty:
83610-10 40nm gold nanospheres, dried, 10mg each 1020.00
Qty:
83610-30 40nm gold nanospheres, dried, 30mg each 2395.00
Qty:
83660-1 100nm gold nanospheres, dried, 1mg each 155.00
Qty:
83660-5 100nm gold nanospheres, dried, 5mg each 625.00
Qty:
83660-10 100nm gold nanospheres, dried, 10mg each 1020.00
Qty:
83660-30 100nm gold nanospheres, dried, 30mg each 2395.00
Qty:


NEW PELCO® BioReady NHS-activated
40nm Gold Nanospheres

Our NHS (N-hydroxysuccinimide) activated nanoparticles are optimized for covalently coupling biomolecules, such as antibodies, to the surface of the gold nanoparticle. 

Each kit includes:

  • Lyophilized gold nanospheres that reconstitute to 20 OD; 50 µL per small unit and 500 µL per large unit
  • Easy-to-use detailed protocol
  • Desalting buffer for antibody, reaction buffer, quencher, and conjugate diluent
  • Amicon® Ultra 0.5 mL spin filters for antibody buffer exchange/desalt

Prod # Description Unit Price Order / Quote
83540 NHS-activated 40nm gold nanosphere conjugation kit, (small, 3 units) each $155.00
Qty:
83542 NHS-activated 40nm gold nanosphere conjugation kit, (small, 10 units) each 525.00
Qty:
83544 NHS-activated 40nm gold nanosphere conjugation kit, (large, 1 unit) each 525.00
Qty: