We offer the largest selection of monodisperse inorganic, polymer (latex) and magnetic microspheres and nanospheres. 

   The size range of our microparticles is from few nanometers to about one hundred micron. These truly spherical and uniform particles are prepared to satisfy the most demanding applications requiring uniform and monosized micro beads with plain and functionalzed surfaces.

   Our microspheres and nanospheres have plain, amino, carboxyl, avidin, biotin, streptavidin, antibody finished surfaces and are suitable for applications in immunological research, separation of cells, nucleic acids, proteins.

Each product at microspheres-nanospheres  is carefully designed and manufactured to meet or exceed the highest quality standards. We specialize in production of microspheres and nanospheres used predominantly in research and development projects. As scientists we understand that the investigators facing many difficult challenges with multiply variables. One important factor determining our production philosophy is do not introduce additional variables and uncertainties. Opposite, our microspheres and nanospheres are designed to reduce number of variable, aid to investigators solve their problems with our well defined microparticles. When applying our microparticles you can expect:

• perfectly spherical shape microspheres and nanospheres

• truly uniform sizes ranging ~50nm to 1000nm (nanospheres) and 1µm to 100µm (microspheres)

• well characterized and quantified surface functionality for antibody coated microparticles

• magnetic microspheres and nanospheres which respond to the magnetic field immediately

• dyed microspheres and nanospheres with perfected and reliable absorbance

We are only supplier of truly uniform and monodisperse aminated alumina (amino functional groups coated aluminum oxide) microspheres and nanospheres.

Properties of alumina

microspheres and nanospheres:

Size: nanospheres 100-950nm, microspheres 1-100µm.

Solubility in water: insoluble

Solubility in organic solvents: insoluble.

Density: 2.2g/cm³.

Crystal structure: amorphous (could be converted into  crystalline state by heating).

Surface charge: Amino groups NH₂

Functional surface

alumina microspheres and nanospheres:

Currently we offer alumina microspheres and nanospheres with plain, amino and carboxyl functional groups. The alumina microspheres and nanospheres are also available on custom synthesis basis with other functional groups such as albumin, protein A, epoxy, NHS, NTA, EDTA et others. Please ask for delivery time and quotation.

They are useful for coupling of DNA, oligonucleotides, oligopeptides, proteins, lectines and antibodies.

Dyed and fluorescent

alumina microspheres and nanospheres:

Currently not available

Doped with other elements

alumina microspheres and nanospheres:

On custom synthesis basis we can dope these microparticles selected other elements with up to 2 %. The doped elements could be distributed uniformly, internally or externally.

Scanning Electron Microscopy image of 626 nm uniform aminated Al₂O₃ nanospheres

Scanning Electron Microscopy image of 1.7 µm uniform aminated Al₂O₃ nanospheres

Amino functional Al₂O₃ nanospheres

Catalog #

Size, [nm]

Manufacturer info

Price, [USD]

130

C-ALU-0.13NH2

380.00

350.00

190

C-ALU-0.19NH2

300.00

280.00

230

C-ALU-0.23NH2

280.00

280.00

280.00

300

C-ALU-0.30NH2

280.00

380

C-ALU-0.38NH2

280.00

280.00

295.00

Amino functional Al₂O₃ microspheres

Catalog #

Size, [µm]

Manufacturer info

Price, [USD]

1.0

C-ALU-1.0NH2

350.00

2.5

C-ALU-2.5NH2

3.5

C-ALU-3.5NH2

4.0

C-ALU-3.5NH2

6.0

C-ALU-6.0NH2

400.00

400.00

400.00

9.0

C-ALU-9.0NH2

450.00

25.0

C-ALU-25.0NH2

450.00

450.00

60.0

C-ALU-60.0NH2

450.00

85.0

C-ALU-85.0NH2

450.00

130480-10

100.0

10ml

5.0%

C-ALU-100.0NH2

450.00