Microspheres

Small, spherical particles available in a range of sizes, colors, and material compositions, and possessing various surface modifications for specialized applications. These applications include use in assaying, calibration, labeling, flow cytometry, etc.

1 – 15 of 279 results

Invitrogen™ FluoSpheres™ Carboxylate-Modified Microspheres

Achieve the brightest fluorescence with Carboxylate-Modified FluoSphere Microspheres, available in different colors and particle sizes.

Pricing and Availability
Specifications

Product Type	Carboxylate-Modified Microsphere
Surface Modification	Carboxylate
Material	Polystyrene
For Use With (Application)	Fluorescence Microscopy
Product Line	FLUOSPHERES™

Thermo Scientific™ Fluoro-Max Dyed Green Aqueous Fluorescent Particles

Improve sensitivity and detectability for analytical methods with green aqueous fluorescent particles.

Pricing and Availability
Specifications

Includes	Package Insert Sheet
Particle Density	1.05g/cm³
Content And Storage	Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer. Product comes with stir bar for continual mixing duriong sampling.
Additive	Trace amounts of surfactant to inhibit agglomeration and promote stability
Stability	Product stable for a minimum of 24 months
Contents	Dyed polystyrene microspheres in water
Product Type	Fluorescent Particle
Color	Green
Refractive Index	1.59 at 589nm (25°C)
Material	Polystyrene
Concentration	1% solids
Dye Type	Firefli™ Fluorescent Green (468/508nm)

Thermo Scientific™ 9000 Series Glass Particle Standards

Replace polystyrene spheres in many applications with dry glass NIST™-traceable size standards.

Pricing and Availability
Specifications

Content And Storage	Store at room temperature. Keep bottle tightly sealed to avoid contamination.
Additive	None
Stability	Product stable for a minimum of 24 months
Product Type	Size Standard Particles
Color	White
Quantity	1 g
For Use With (Application)	Narrow Size Standard Deviation Applications

Thermo Scientific™ 3000 Series Nanosphere™ Size Standards

Conveniently check the sizes of bacteria, viruses, ribosomes and sub-cellular components with these size standards.

Pricing and Availability
Specifications

Particle Density	1.05g/cm³
Content And Storage	Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer.
Stability	Product stable for a minimum of 24 months
Description	3000 Series Nanosphere Size Standards come in optimized concentrations for easy dispersal and colloidal stability.
Color	White or Colorless
Quantity	15 mL
Material	Polystyrene
Concentration	1% solids
For Use With (Application)	Electron Microscope Calibration
Includes	Certificate of Calibration and Traceability to NIST
Additive	Contains trace amount of surfactant to inhibit agglomeration and promote stability
Contents	Polymer particles in water
Product Type	Size Standard Particles
Refractive Index	1.59 at 589nm (25°C)

Invitrogen™ TetraSpeck™ Microspheres, 1.0 μm, fluorescent blue/green/orange/dark red

Beads that each display four well-separated excitation/emission peaks

Pricing and Availability

Molecular Probes™ FluoSpheres™ Size Kit #2, Carboxylate-modified Microspheres, yellow-green fluorescent (505/515), 2% solids, six sizes

Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene.

Pricing and Availability

Thermo Scientific™ Color-Rich Dyed Carboxylate-Modified Particles

Obtain superior test sensitivity in qualitative and quantitative lateral flow tests with Thermo Scientific™ Color-Rich Dyed Carboxylate-Modified Particles.

Pricing and Availability
Specifications

Includes	Certificate of Analysis
Stability	Product stable for a minimum of 24 months
Contents	Dyed polystyrene microspheres in water
Product Type	Carboxylate-Modified Particle
Surface Modification	Carboxylate-Modified
Refractive Index	1.59 at 589nm (25°C)
Binding Property	Carboxylate-modified
Uniformity	<5% CV

Molecular Probes™ CML Latex Beads, 4% w/v, 4 μm

Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene.

Pricing and Availability

Molecular Probes™ Amidine Latex Beads, 4% w/v, 0.1 μm

Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene.

Pricing and Availability

Molecular Probes™ TransFluoSpheres™ Carboxylate-Modified Microspheres, 1.0 μm (488/560), 2% solids

Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene.

Pricing and Availability

Molecular Probes™ TransFluoSpheres™ Carboxylate-Modified Microspheres, 1.0 μm (488/645), 2% solids

Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene.

Pricing and Availability

Invitrogen™ TetraSpeck™ Microspheres, 4.0 μm, fluorescent blue/green/orange/dark red

Beads that each display four well-separated excitation/emission peaks

Pricing and Availability

Thermo Scientific™ Dri-Cal™ Particle Size Standards

Use Thermo Scientific™ Dri-Cal™ Particle Size Standards for calibrating particle sizing and counting instruments that require dry particles.

Pricing and Availability
Specifications

Particle Density	1.05g/cm³
Content And Storage	Store at room temperature in a dry area. Store upright and keep bottle tightly sealed. Respiratory protection from dust is recommended.
Stability	Product stable for a minimum of 24 months
Description	Used for calibrating particle sizing and counting instrumentation that require dry particles for measuring dry media.
Color	White
Quantity	1 g
Material	Polystyrene Divinylbenzene (PS-DVB)
Concentration	100% solids
For Use With (Application)	Dry Particle Counter Calibration
Includes	Certificate of Calibration and Traceability
Additive	May contain trace amount of dispersant
Contents	Dry dyed polystyrene (DVB) microspheres
Product Type	Size Standard Particles
Refractive Index	1.59 at 589nm (25°C)

Thermo Scientific™ 5000 Series 0.03μm to 0.30μm Polymer Particle Suspensions

Optimize research in light scattering, microporous filter checking, and aerosol particle generation with these particle suspensions.

Pricing and Availability
Specifications

Includes	General product handling insert sheet
Particle Density	1.05g/cm3
Content And Storage	Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer.
Additive	Contains trace amount of surfactant to inhibit agglomeration and promote stability
Stability	Product stable for a minimum of 24 months
Description	Particles useful for such applications as filter evaluation, checking and testing, light scattering research, fluid mechanics research, aerosol particle generation, dispersion studies, and many other research and development projects. They are not intended for use in instrument calibration.
Product Type	Polymer Particle Suspensions
Color	White or Colorless
Refractive Index	1.59 at 589nm (25°C)
Material	Polystyrene
Concentration	10%
For Use With (Application)	Aerosol Particle Generation,Dispersion,Filter Evaluation,Light Scattering,Particle Generation

Molecular Probes™ FluoSpheres™ Polystyrene Microspheres, 15 μm, blue fluorescent (365/415), for blood flow determination

Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene.

Pricing and Availability

Microspheres

Microspheres

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