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 1,132 results

Thermo Scientific™ 4000 Series Monosized Particles

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

Pricing & 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™ 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 & 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

Thermo Scientific™ 9000 Series Glass Particle Standards

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

Pricing & 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™ FluoSpheres™ Carboxylate-Modified Microspheres

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

Pricing & Availability
Specifications

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

Thermo Scientific™ Duke Standards™ 2000 Series Uniform Polymer Particles

Analyze wide size range materials through laser diffraction or other methods with uniform polymer particles that mimic real world particles.

Pricing & Availability
Specifications

Includes	Material Safety Data Sheet (MSDS), Certificate of Calibration and Traceability to NIST
Particle Density	1.05g/cm³
Content And Storage	Store at room temperature or keep refrigerated. Keep bottle tightly sealed to avoid contamination.
Additive	Contains trace amount of surfactants
Stability	=24 months
Product Type	Polymer Particles
Color	White or Colorless
Refractive Index	1.59 at 589nm (25°C)
Quantity	15 mL
Material	Polystyrene Divinylbenzene (PS-DVB)
For Use With (Application)	Narrow Size Standard Deviation Applications

Thermo Scientific™ Fluoro-Max Dyed Green Aqueous Fluorescent Particles

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

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 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)

Molecular Probes™ CML Latex Beads, 4% w/v, 1.0 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

Thermo Scientific™ ChromoSphere™-T Certified Size Standards

Achieve high visual contrast with Thermo Scientific™ ChromoSphere™-T Certified Size Standards, colored polymer microspheres with NIST™-traceable diameters.

Pricing & 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	Designed for use as reference or calibration materials in applications where high contrast is required.
Quantity	1 g
Material	Polystyrene Divinylbenzene (PS-DVB)
Concentration	100% solids
For Use With (Application)	Cleaning Evaluation,High Contrast Reference and Calibration
Includes	Certificate of Calibration and Traceability to NIST
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)
Certifications/Compliance	Certificate of Calibration and Traceability to NIST

Molecular Probes™ FluoSpheres™ Sulfate-Modified Microspheres, 0.02–4.0 μm

Perform flow cytometry, microscopy, HTS, and HCS with our FluoSpheres Sulfate-Modified Microspheres, featuring different bead diameters.

Pricing & Availability
Specifications

Shipping Condition	Room Temperature
Content And Storage	Store in refrigerator (2–8°C) and protect from light.
Product Type	Microsphere
Surface Modification	Sulfate
Material	Polystyrene
For Use With (Application)	Cell Analysis
Product Line	FLUOSPHERES™

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 & 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)

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™ 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™ ChromoSphere™ Dry Dyed Polymer Particles

Achieve high visual contrast with polymer particles that are internally and deeply dyed in intense red or black.

Pricing & Availability
Specifications

Includes	Material Safety Data Sheet (MSDS)
Particle Density	1.05g/cm³
Content And Storage	Store at room temperature. Keep bottle tightly sealed to avoid contamination.
Additive	May contain trace amount of dispersant
Stability	Product stable for a minimum of 24 months
Contents	Dry dyed polystyrene (DVB) microspheres
Product Type	Polymer Particles
Refractive Index	1.59 at 589nm (25°C)
Material	Polystyrene Divinylbenzene (PS-DVB)
Uniformity	<10%

Molecular Probes™ CML Latex Beads, 4% w/v, 10 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

Microspheres

Microspheres

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