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.

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Thermo Scientific™ 4000 Series Monosized Particles

Minimize response of analytic systems to shape effects with monosized particles.

Pricing and Availability
Specifications

Includes	Certificate of Calibration and Traceability to NIST
Particle Density	1.05g/cm³
Stability	Product stable for a minimum of 24 months
Description	NIST traceable particles that provide calibration of laser particle counters
Product Type	Size Standard Particles
Color	White or Colorless
Material	Polystyrene
Certifications/Compliance	Each package of standards contains a Certificate of Calibration and Traceability to NIST which includes a description of the calibration method and its uncertainty, and a table of chemical and physical properties.
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)

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

Invitrogen™ 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™ Nonionic Latex Beads, 4% w/v, 5 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™ Aliphatic Amine Latex Beads, 2% w/v, 0.04 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

Thermo Scientific™ Fluoro-Max Green and Red Dry Fluorescent Particles

Improve sensitivity and detectability for analytical methods with fluorescent particles that feature bright, distinct colors.

Pricing and Availability
Specifications

Includes	Package Insert Sheet
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.
Additive	May contain trace amount of dispersant
Stability	Product stable for a minimum of 24 months
Contents	Dry dyed polystyrene (DVB) microspheres
Product Type	Fluorescent Particle
Refractive Index	1.59 at 589nm (25°C)
Material	Polystyrene Divinylbenzene (PS-DVB)

Invitrogen™ FocalCheck™ Microspheres, 6 μm, fluorescent green/orange/dark-red ring stains

Fluorescent green/orange/dark-red ring stains

Pricing and Availability

Molecular Probes™ Aldehyde/Sulfate 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

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™ Sulfate Latex Beads, 4% w/v, 5 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

Thermo Scientific™ 3K/4K Series Particle Counter Standards

Ensure accurate and convenient calibration of laser particle counters with Thermo Scientific™ 3K/4K Series Particle Counter Standards.

Pricing and Availability
Specifications

Includes	Certificate of Calibration and Traceability to NIST
Additive	Contains trace amount of surfactant to inhibit agglomeration and promote stability
Description	NIST traceable particles that provide calibration of laser particle counters
Contents	Polymer particles in water
Product Type	Count Control Particles
Color	White or Colorless
Refractive Index	1.59 at 589nm (25°C)
Quantity	15 mL
Material	Polystyrene
For Use With (Application)	Laser Particle Counter Calibration

Molecular Probes™ Sulfate Latex Beads, 8% w/v, 2 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

Thermo Scientific™ Opti-Link™ Carboxylate-Modified Particles

Control sensitivity, specificity and stability with various acid content available within Thermo Scientific™ Opti-Link™ Carboxylate-Modified Particles.

Pricing and Availability
Specifications

Includes	Package Insert Sheet containing Certicate of Analysis
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	Proprietary anionic surfactant
Description	Particles that contain carboxylic acid groups for covalent coupling and that can be used in a variety of applications.
Product Type	Specialty Particles
Material	Polystyrene Sulfate
Certifications/Compliance	Includes Certificate of Analysis
Specialty Packaging	Opti-Link Carboxylate-Modified Polystyrene particles are available in different concentrations and package sizes upon request.
For Use With (Application)	Covalent Coupling

Invitrogen™ FluoSpheres™ Polystyrene Microspheres, 15 μm, yellow fluorescent (515/534), 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

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