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Nanotechnology Overview
NEW! PELCO® NanoXact™ and BioPure™ Gold Colloids

PELCO^® NanoXact™ and BioPure™

Silver Colloids/Nanoparticles and Silver Nanowires

(NEW PRICING)

Citrate stabilized silver 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 colloidal silver particles are suspended in 2mM citrate buffer, pH 7.4.

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

NOTE: Thiols and amines have a high affinity for the silver surface. Functionalizing silver is difficult because thiols and amines bind strongly to the silver surface. However, the silver bonds are labile and can rearrange, reducing long term stability. To avoid destabilizing try to use bidentate or tridentate molecules (i.e. those that present multiple thiols or amines to the silver surface).

New Nanoparticles Developed for Ted Pella, Inc.

The PELCO^® NanoXact™ and BioPure™ colloidal silver 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 20 to 110nm with 10 different sizes to choose from.

The silver 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

Two different capping/stabilizing agents to choose from: 1) citrate or 2) tannic acid.

The colloids are negatively charged. Zeta potential of the NanoXact™ line is in the -50mV range. Zeta potential of the BioPure™ line is in the -30mV range.
The silver colloids are stable in the electron beam.
NanoXact™ silver colloids are available in 25, 100 and 500ml volumes - supplied in 2mM citrate buffer, pH 7.4.
BioPure™ silver colloids are 50X more concentrated than the NanoXact™ silver colloids and available in 1, 2 and 5ml volumes - supplied in 2mM citrate buffer, pH 7.4.
Both silver lines have been extensively washed without centrifugation to remove trace elements from the supernatant (<0.000001% of trace elements).
Silver nanowires, coated with PVP and supplied in water are available in two size ranges: 1) 2-5µm long 2) ~ 20µm long. The diameter of the wire depends on length but all diameters are <100nm. Available in 2 or 5ml quantities.

Stability and Storage of Silver Nanoparticles

The PELCO^® NanoXact™ and BioPure™ silver colloids should be stored at 4°C in the dark. The silver colloids are photosensitive.

DO NOT FREEZE.
NanoXact™ line is stable for >6 months after purchase
BioPure™ line is stable for >3 months after purchase

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

PELCO NanoXact and BioPure Silver Colloids/Nanoparticles

1X Concentration							50X Concentration
NanoXact™ Ag Technical Data							BioPure™ Ag Technical Data
Ag Mass Concentration	Atomic Molarity (Ag)	Particle Concentration	Ag Mass Percent	Max Optical Density	Peak Wave- length	Particle Diameter	Ag Mass Concentration	Atomic Molarity (Ag)	Particle Concentration	Ag 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
0.02	0.185	4.50 x 10¹¹	0.002	2.46	405	20	1.0	9.25	2.25 x 10¹³	0.01	123	405
0.02	0.185	1.30 x 10¹¹	0.002	2.49	405	30	1.0	9.25	6.50 x 10¹²	0.01	125	405
0.02	0.185	5.70 x 10¹⁰	0.002	2.54	410	40	1.0	9.25	2.85 x 10¹²	0.01	127	410
0.02	0.185	2.90 x 10¹⁰	0.002	2.39	420	50	1.0	9.25	1.45 x 10¹²	0.01	120	420
0.02	0.185	1.70 x 10¹⁰	0.002	2.03	435	60	1.0	9.25	8.50 x 10¹¹	0.01	101	435
0.02	0.185	1.10 x 10¹⁰	0.002	1.74	440	70	1.0	9.25	5.50 x 10¹¹	0.01	87	440
0.02	0.185	7.10 x 10⁹	0.002	1.34	450	80	1.0	9.25	3.55 x 10¹¹	0.01	67	450
0.02	0.185	5.00 x 10⁹	0.002	1.09	500	90	1.0	9.25	2.50 x 10¹¹	0.01	55	500
0.02	0.185	3.60 x 10⁹	0.002	0.89	500	100	1.0	9.25	1.80 x 10¹¹	0.01	45	500
0.02	0.185	2.70 x 10⁹	0.002	0.82	515	110	1.0	9.25	1.35 x 10¹¹	0.01	41	515

Technical Data Sheet for PELCO® NanoXact™ Silver Nanoparticles

Technical Data Sheet for PELCO® BioPure™ Silver Nanoparticles

PELCO^® NanoXact™ Silver Colloids/Nanoparticles - Supplied at 1X Concentration in 2mM citrate buffer, pH 7.4

Citrate Capped Silver Colloids

(New Pricing for 25 and 100ml sizes)

Size (nm)

Particles/ml

25 ml

Price $50.00/ea

100 ml

Price $150.00/ea

500 ml

Price $500.00/ea

20nm

4.50 x 10¹¹

84050-20

Qty:

84060-20

Qty:

84080-20

Qty:

30nm

1.30 x 10¹¹

84050-30

Qty:

84060-30

Qty:

84080-30

Qty:

40nm

5.70 x 10¹⁰

84050-40

Qty:

84060-40

Qty:

84080-40

Qty:

50nm

2.90 x 10¹⁰

84050-50

Qty:

84060-50

Qty:

84080-50

Qty:

60nm

1.70 x 10¹⁰

84050-60

Qty:

84060-60

Qty:

84080-60

Qty:

70nm

1.10 x 10¹⁰

84050-70

Qty:

84060-70

Qty:

84080-70

Qty:

80nm

7.10 x 10⁹

84050-80

Qty:

84060-80

Qty:

84080-80

Qty:

90nm

5.00 x 10⁹

84050-90

Qty:

84060-90

Qty:

84080-90

Qty:

100nm

3.60 x 10⁹

84050-100

Qty:

84060-100

Qty:

84080-100

Qty:

110nm

2.70 x 10⁹

84050-110

Qty:

84060-110

Qty:

84080-110

Qty:

Tannic Acid Capped Silver Colloids

(New Pricing for 25 and 100ml sizes)

Size (nm)

Particles/ml

25 ml

Price $50.00/ea

100 ml

Price 150.00/ea

500 ml

Price 500.00/ea

20nm

4.50 x 10¹¹

84150-20

Qty:

84160-20

Qty:

84180-20

Qty:

30nm

1.30 x 10¹¹

84150-30

Qty:

84160-30

Qty:

84180-30

Qty:

40nm

5.70 x 10¹⁰

84150-40

Qty:

84160-40

Qty:

84180-40

Qty:

50nm

2.90 x 10¹⁰

84150-50

Qty:

84160-50

Qty:

84180-50

Qty:

60nm

1.70 x 10¹⁰

84150-60

Qty:

84160-60

Qty:

84180-60

Qty:

70nm

1.10 x 10¹⁰

84150-70

Qty:

84160-70

Qty:

84180-70

Qty:

80nm

7.10 x 10⁹

84150-80

Qty:

84160-80

Qty:

84180-80

Qty:

90nm

5.00 x 10⁹

84150-90

Qty:

84160-90

Qty:

84180-90

Qty:

100nm

3.60 x 10⁹

84150-100

Qty:

84160-100

Qty:

84180-100

Qty:

110nm

2.70 x 10⁹

84150-110

Qty:

84160-110

Qty:

84180-110

Qty:

PELCO^® BioPure™ Silver Colloids/Nanoparticles - Supplied at 50X Concentration in 2mM citrate buffer, pH 7.4

Citrate Capped Silver Colloids

Size (nm)

Particles/ml

1 ml

Price $200.00/ea

2 ml

Price $350.00/ea

5 ml

Price $750.00/ea

20nm

4.50 x 10¹¹

85010-20

Qty:

85020-20

Qty:

85030-20

Qty:

30nm

1.30 x 10¹¹

85010-30

Qty:

85020-30

Qty:

85030-30

Qty:

40nm

5.70 x 10¹⁰

85010-40

Qty:

85020-40

Qty:

85030-40

Qty:

50nm

2.90 x 10¹⁰

85010-50

Qty:

85020-50

Qty:

85030-50

Qty:

60nm

1.70 x 10¹⁰

85010-60

Qty:

85020-60

Qty:

85030-60

Qty:

70nm

1.10 x 10¹⁰

85010-70

Qty:

85020-70

Qty:

85030-70

Qty:

80nm

7.10 x 10⁹

85010-80

Qty:

85020-80

Qty:

85030-80

Qty:

90nm

5.00 x 10⁹

85010-90

Qty:

85020-90

Qty:

85030-90

Qty:

100nm

3.60 x 10⁹

85010-100

Qty:

85020-100

Qty:

85030-100

Qty:

110nm

2.70 x 10⁹

85010-110

Qty:

85020-110

Qty:

85030-110

Qty:

Tannic Acid Capped Silver Colloids

Size (nm)

Particles/ml

1 ml

Price $200.00/ea

2 ml

Price $350.00/ea

5 ml

Price $750.00/ea

20nm

4.50 x 10¹¹

85110-20

Qty:

85120-20

Qty:

85130-20

Qty:

30nm

1.30 x 10¹¹

85110-30

Qty:

85120-30

Qty:

85130-30

Qty:

40nm

5.70 x 10¹⁰

85110-40

Qty:

85120-40

Qty:

85130-40

Qty:

50nm

2.90 x 10¹⁰

85110-50

Qty:

85120-50

Qty:

85130-50

Qty:

60nm

1.70 x 10¹⁰

85110-60

Qty:

85120-60

Qty:

85130-60

Qty:

70nm

1.10 x 10¹⁰

85110-70

Qty:

85120-70

Qty:

85130-70

Qty:

80nm

7.10 x 10⁹

85110-80

Qty:

85120-80

Qty:

85130-80

Qty:

90nm

5.00 x 10⁹

85110-90

Qty:

85120-90

Qty:

85130-90

Qty:

100nm

3.60 x 10⁹

85110-100

Qty:

85120-100

Qty:

85130-100

Qty:

110nm

2.70 x 10⁹

85110-110

Qty:

85120-110

Qty:

85130-110

Qty:

Silver Nanowires - PVP Coated - New Pricing!

1.0mg /ml Ag mass concentration, supplied in water

Prod # Description Unit Price Order / Quote

85720-5
Silver Nanowires, PVP Coated, 2-5µm long
2ml
$585.00

Qty:

85730-5
Silver Nanowires, PVP Coated, 2-5µm long
5ml
1,250.00

Qty:

85721-20
Silver Nanowires, PVP Coated, ~20µm long
2ml
585.00

Qty:

85731-20
Silver Nanowires, PVP Coated, ~20µm long
5ml
1,250.00

Qty:

PELCO® NanoXact™ and BioPure™

Silver Colloids/Nanoparticles and Silver Nanowires

(NEW PRICING)

New Nanoparticles Developed for Ted Pella, Inc.

Product Description

Two different capping/stabilizing agents to choose from: 1) citrate or 2) tannic acid.

Stability and Storage of Silver Nanoparticles

PELCO® NanoXact™ Silver Colloids/Nanoparticles - Supplied at 1X Concentration in 2mM citrate buffer, pH 7.4

Citrate Capped Silver Colloids

Tannic Acid Capped Silver Colloids

PELCO® BioPure™ Silver Colloids/Nanoparticles - Supplied at 50X Concentration in 2mM citrate buffer, pH 7.4

Citrate Capped Silver Colloids

Tannic Acid Capped Silver Colloids

Silver Nanowires - PVP Coated - New Pricing!

1.0mg /ml Ag mass concentration, supplied in water

PELCO^® NanoXact™ and BioPure™

PELCO^® NanoXact™ Silver Colloids/Nanoparticles - Supplied at 1X Concentration in 2mM citrate buffer, pH 7.4

PELCO^® BioPure™ Silver Colloids/Nanoparticles - Supplied at 50X Concentration in 2mM citrate buffer, pH 7.4