Products

Fluorescent Particles

Fluorescent Microspheres for Diagnostics and Imaging at microParticles GmbH

We specialize in the innovative manufacturing of fluorescent nano- and microspheres using proprietary techniques developed in-house. Our particles are available in a wide range of sizes, matrix chemistries, fluorochromes, fluorescence intensities, and surface functionalities—designed to meet the diverse needs of research and industry.

Our carefully selected fluorescent dyes span nearly the entire spectral range, from UV to near IR, enabling high-performance applications across multiple fields.

Color	Excitation Light Source [nm]	Emission [nm]
Color
Blue	UV 360 Laser 405	450 (50)
Green	Laser 488 Laser 532	520 (50)
Orange	Laser 488 Laser 532	560 (50)
Red	Laser 632	650 (50)

Inquiries for other dyes or special multicolor preparations are welcome

Key Features of Our Fluorescent Particles:

Narrow size distribution (C.V. ≤ 3%)
Wide diameter range available
Homogeneous dye incorporation for consistent fluorescence
Intense coloration and brightness
Custom chemical and biochemical surface functionalization

We offer particles based on melamine resin (MF), polystyrene (PS), polymethylmethacrylate (PMMA), and silica (SiO2), each with unique advantages. Notably, our MF and silica-based fluorescent microspheres are dispersible in organic solvents and oils without dye-leaching, swelling, or shrinking—making them ideal for demanding environments.

Applications Across Industries:

Our fluorescent microspheres offer consistent performance across different analysis platforms. They are frequently used in cell tracking and biomedical assays, enabling researchers to clearly and accurately monitor cell behavior. They are available in polystyrene, melamine resin, silica, or PMMA and with variable chemical surface properties for different conjugation requirements. Our internally dyed fluorescent beads offer exceptional brightness and photostability, ensuring reliable signal intensity even under demanding conditions. In addition, their performance as tracer particles for flow visualization makes them ideal for studying flow dynamics in environmental, biological, and industrial applications.

Particle Material	Mean Diameter [µm]	Particle Concentration [wt-%]	Pack Size [ml]
PS, PMMA, Melamine resin, Silica	0.1 - 0.99 > 1.0	2.5	5 , 10

Blue Green Orange Red

Product related References:

Micro- and Nanoplastics Breach the Blood–Brain Barrier (BBB): Biomolecular Corona’s Role Revealed
Kopatz, V., Wen, K., Kovács, T., Keimowitz, A.S., Pichler, V., Widder, J., Vethaak, A.D., Hollóczki, O., Kenner, L.
Nanomaterials 2023, 13(8), 1404 DOI: 10.3390/nano13081404

Microfluidic Device for the Manipulation of Microparticles for Flow Cytometry Application
Attard, M., Coral, D., Pedrol, È., Aguiló, M., Díaz, F., Mateos, X.
Part. Syst. Charact. 2023, 40(9), 2300038 DOI: 10.1002/ppsc.202300038

Diffusiophoresis and Diffusio-osmosis into a Dead-End Channel: Role of the Concentration-Dependence of Zeta Potential
Akdeniz, B., Wood, J.A., Lammertink, R.G.H.
Langmuir 2023, 39(6), 2322-2332 DOI: 10.1021/acs.langmuir.2c03000

Electrocatalytic Reaction Induced Colloidal Accumulation: The Role of Dielectrophoresis
Ashaju, A.A., Wood, J.A., Lammertink, R.G.H
Langmuir 2022, 38(10), 3040 -3050 DOI: 10.1021/acs.langmuir.1c01938

Controlling Uniform Patterns by Evaporation of Multi-Component Liquid Droplets in a Confined Geometry
Pyeon, J., Kim, H.
Soft Matter 2021, 17(13), 3578-3585 DOI: 10.1039/D0SM01872D