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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Molecular Probes™ CML 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.

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Invitrogen™ Amidine Latex Beads, 4% w/v, 0.02 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.

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Molecular Probes™ CML Latex Beads, 4% w/v, 0.2 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 & Availability

Molecular Probes™ Aldehyde/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.

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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 & 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

Thermo Scientific™ Dyed Red Aqueous Fluorescent Particles

Improve sensitivity and detectability for analytical methods with microsphere suspensions that are internally dyed and feature bright, high-contrast colors.

Pricing & 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 particles in water
Product Type	Fluorescent Particle
Color	Red
Refractive Index	1.59 at 589nm (25°C)
Material	Polystyrene
Concentration	1% solids
Dye Type	Firefli Fluorescent Red (542/612nm)

Thermo Scientific™ COUNT-CAL™ Count Precision Size Standards

Minimize contamination by eliminating the need for serial dilutions and extensive sample handling with Thermo Scientific™ COUNT-CAL™ Count Precision Size Standards.

Pricing & Availability
Specifications

Includes	Certificate of Calibration and Traceability to NIST, Particle Counting Protocol
Stability	Product stable for a minimum of six months
Description	Products provide a precise method for calibrating or checking the performance of laser particle counters
Contents	Polystyrene microspheres in water
Product Type	Count Control Particles
Color	White or Colorless
Refractive Index	1.59 at 589nm (25°C)
Quantity	6 x 25 mL
Material	Polystyrene
Concentration	3000 particles/mL ± 10%
Certifications/Compliance	Certificate of Calibration and Traceability to NIST
For Use With (Application)	Liquid Particle Counter Validation,USP Verification
Size Distribution	<3%

Thermo Scientific™ Ezy-Cal™ Count Precision Size Standards

Meet the unique and demanding requirements of the contamination control laboratory in modern industries.

Pricing & Availability
Specifications

Stability	Product stable for a minimum of three months
Contents	Polystyrene microspheres in water
Product Type	Count Control Particles
Color	White or Colorless
Refractive Index	1.59 at 589nm (25°C)
Quantity	100 mL
Material	Polystyrene
Concentration	2000 particles/mL ± 10%
For Use With (Application)	Liquid Particle Counter Calibration

Thermo Scientific™ 5000 Series 0.31μm to 0.93μm Polymer Particle Suspensions

Meet the need for particulate materials with a variety of particle sizes and properties with Thermo Scientific™ 5000 Series Polymer Particle Suspensions

Pricing & 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%

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Cytiva Sera-Mag SpeedBeads™ Carboxyl Magnetic Beads, hydrophobic

Excellent for coupling oligos or proteins directly to the beads. Their cauliflower-like structure gives Sera-Mag beads high binding capacity. The carboxyl groups on these beads can be activated by standard EDC/EDAC chemistry to react with free amino groups, forming amide bonds.

Pricing & Availability
Specifications

Content And Storage	2°C to 8°C
Diameter (Metric)	1 μm
Concentration	5% solids (50mg/mL)
For Use With (Application)	DNA Sample Prep,Protein Purification

Invitrogen™ FluoSpheres™ Polystyrene Microspheres, 15 μm, scarlet fluorescent (645/680), 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 & Availability

Thermo Scientific™ 3000 Series Nanosphere™ Size Standards

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

Pricing & 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™ Validex™ Count Precision Size Standards

Validate the performance of liquid particle counters with Thermo Scientific™ Validex™ Count Precision Size Standards.

Pricing & Availability
Specifications

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 3 months
Description	Designed specifically for the drinking water industry to validate the performance of liquid particle counters.
Color	White or Colorless
Quantity	500 mL
Material	Polystyrene
Concentration	1000 particles/mL ± 10%
For Use With (Application)	Liquid Particle Counter Validation
Size Distribution	<3
Includes	Certificate of Calibration and Traceability to NIST
Additive	Contains trace amount of surfactant
Contents	Polymer particles in water
Product Type	Count Control Particles
Refractive Index	1.59 at 589nm (25°C)

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Cytiva Sera-Mag™ Carboxylate modified Magnetic Beads, hydrophobic

Excellent for coupling oligos or proteins directly to beads. Their cauliflower-like structure gives Sera-Mag beads high binding capacity. The carboxyl groups on these single shell magnetite beads can be activated by standard EDC/EDAC chemistry to react with free amino groups, forming amide bonds.

Pricing & Availability
Specifications

Content And Storage	2°C to 8°C
Diameter (Metric)	1 μm
Concentration	5% solids (50mg/mL)
For Use With (Application)	DNA Sample Prep,Protein Purification

Invitrogen™ TetraSpeck™ Microspheres, 0.1 μm, fluorescent blue/green/orange/dark red

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

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Cytiva Sera-Mag SpeedBeads™ Carboxyl Magnetic Beads, hydrophobic GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Cytiva Sera-Mag SpeedBeads™ Carboxyl Magnetic Beads, hydrophobic