Fluorescent Microspheres

Product Introduction:
Fluorescent microspheres are tiny spherical particles that emit fluorescence when exposed to light of a specific wavelength. They are typically made from materials such as polystyrene or other polymers and are embedded with fluorescent dyes. These microspheres are available in various sizes and can be customized with different fluorescent dyes to emit light in a wide range of colors.

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Our Products

Alfa Chemistry has the ability to provide customers with polystyrene fluorescent microspheres in a wide range of particle sizes. Fluorescent dye molecules are embedded within the microspheres to prevent leakage. The surface of the microspheres contains carboxyl functional groups, which allow for covalent coupling with proteins and other biomolecules containing amino groups. Our products have become powerful tools in scientific research and are widely used in applications such as in vitro diagnostics, imaging, and flow cytometer calibration. If you are interested in our products, please feel free to contact us.

Catalog Number	Particle Size	Fluorescent Color	Excitation Wavelength	Emission Wavelength	Surface Functional Group	CV	Concentration
Red Fluorescent Microspheres
NM-MSPs013	Nanoscale: 100 nm, 200 nm, 300 nm, 500 nm, etc.	Bright orange red	520 nm	588 nm	COOH	5%	1%
Green Fluorescent Microspheres
NM-MSPs014	Nanoscale: 100 nm, 200 nm, 300 nm, 500 nm, etc.	Bright green	460 nm	515 nm	COOH	5%	1%
Time-resolved Fluorescent Microspheres
NM-MSPs015	Nanoscale: 100 nm, 200 nm, 300 nm, 500 nm, etc.	Bright red	360 nm	615 nm	COOH	5%	1%

*The excitation wavelength and emission wavelength are approximate values for reference only.
**If you have special needs, we can also provide you with customized services. Customizable contents include particle size, concentration, color, surface functional group, and matrix.

Technical Features

Matrix: Polystyrene containing high performance dyes
Density: 1.05 g/cm³
Refractive Index: 1.59@589 nm (25 °C)

Product Characteristics

Uniform particle size
Good stability
High fluorescence intensity
Controllable size
Selectable surface functional groups

You Need to Know

Our products need to be sealed and stored at 4 °C, do not freeze.
Before use, please shake well. After use, please ensure the bottle cap is tightly closed to prevent the microspheres from drying out.
Our products are for scientific research use only and should not be used for other purposes.