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Colloidal Metal Nanoparticles

Colloidal Metal Nanoparticles

Silver nanoparticles

Characteristics
Size: Concentration: Monodispersion:
5 ± 1 nm up to 1 mМ; 100 ppm 85%
9 ± 2 nm up to 5 mМ; 500 ppm 85%
17 ± 2 nm up to 15 mM; 1500 ppm 85%

Upon request nanoparticles size can be tailor-made in the range of 2 to 40 nm.


Application areas

  • Household chemicals
  • Polymer industry
  • Catalysis
  • Optics
  • Electronics
  • Paints and Lacquers
  • Cosmetics
  • Disinfectants

Optical absorption peak: 400 – 440 nm. Particle shape: Sphere

Preparation method

Silver nanoparticles are being prepared by the chemical reduction method.

Copper nanoparticles

Copper nanoparticles

Characteristics
Size: Concentration: Monodispersion:
7 ± 3nm up to 5 mМ; 300 ppm 85%

Upon request nanoparticles size can be tailor-made in the range of 2 to 40 nm.


Application areas

  • Household chemicals
  • Polymer industry
  • Catalysis
  • Optics
  • Electronics
  • Paints and Lacquers
  • Cosmetics
  • Disinfectants

Optical absorption peak: 560 nm. Particle shape: Sphere


TEM image of copper nanoparticles in water stabilized with starch

Preparation method

Copper nanoparticles are being prepared by the chemical reduction method.

Metal nanoparticles in organic solvent


Metal nanoparticles in isooctane

The solvent represents a reverse-micellar system. Nanoparticles are stabilized in it with anionic surface-active substance (surfactant) - Aerosol-OT.
Particles in organic solvent are suitable for industrial applications, for introduction into complex organic systems and polymer matrices. Size of nanoparticles can be tailor-made within the given range of 5-25 nm and metal nanoparticles stay stable during a long period of time.

AgNP
Silver nanoparticles
in isooctane
Organic solution of silver nanoparticles
Solvent - isooctane
Stabilizer - Aerosol OT
(Dioctyl Sodium Sulphosuccinate)
Particle size 5 - 25 nm (dispersion 80%)
Nanoparticle concentration up to 3000 ppm
Stabilizer concentration 135 mM
CuNP
Copper nanoparticles
in isooctane
Organic solution of copper nanoparticles
Solvent - isooctane
Stabilizer - Aerosol OT
(Dioctyl Sodium Sulphosuccinate)
Particle size 5 - 25 nm (dispersion 80%)
Nanoparticle concentration up to 500 ppm
Stabilizer concentration 135 mM

Metal nanoparticles in inorganic solvent


Metal nanoparticles in aqueous solution

Metal nanoparticles in aqueous solution represent a micellar system and are extracted from organic solutions. Nanoparticles are stabilized with anionic surface-active substance - Aerosol-OT. Particles in aqueous solution can be applied for biomedical purposes and for production of goods for household purposes.

AgW
Silver nanoparticles
in aqueous solution
Water solution of silver nanoparticles
Solvent - water
Stabilizer - Aerosol OT
(Dioctyl Sodium Sulphosuccinate)
Particle size 5 - 25 nm (dispersion 80%)
Nanoparticle concentration up to 1500 ppm
Stabilizer concentration 35 mM
CuW
Copper nanoparticles
in aqueous solution
Water solution of copper nanoparticles
Solvent - water
Stabilizer - Aerosol OT
(Dioctyl Sodium Sulphosuccinate)
Particle size 5 - 25 nm (dispersion 80%)
Nanoparticle concentration up to 150 ppm
Stabilizer concentration 35 mM
AgWDx
Silver nanoparticles
in aqueous solution
Water solution of silver nanoparticles
Solvent - water
Stabilizer - starch
Particle size 5 - 25 nm (dispersion 80%)
Nanoparticle concentration up to 2000 ppm
Stabilizer concentration 0,1 %
CuWDx
Copper nanoparticles
in aqueous solution
Water solution of copper nanoparticles
Solvent - water
Stabilizer - starch
Particle size 5 - 25 nm (dispersion 80%)
Nanoparticle concentration up to 500 ppm
Stabilizer concentration 0,1 %
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