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.

Brand: Thermo Scientific™

Manufacturer Part Number: DBK1040CB

UNSPSC: 41116009

Code: LE

Additional Details:
Additional Details: Weight: 0.25600kg

Product Code. 11898273

Quantity Price
1 £ 1020.0 / Each
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Description and Specification


Uniformity <5% CV
Binding Property Carboxylate-modified
Parking Area 55A²/group
Particle Size (Metric) 0.4µm
Storage Requirements Unless otherwise stated, refrigerate (2-8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Keep in original amber bottle and do not expose to light which can deteriorate the product. Mix product with gentle inversion by hand or vortex mixer.
Stability Product stable for a minimum of 24 months
Dye Type Black
Concentration 4% solids
Contents Dyed polystyrene microspheres in water
Color Black
Refractive Index 1.59 at 589nm (25°C)
Diameter (Metric) Mean 0.4µm
Surface Modification Carboxylate-Modified
Diameter (Metric) 0.4µm
Diameter (Metric) Nominal 0.4µm
Quantity 100mL
Includes Certificate of Analysis
Additive None
Particle Density 1.06g/cm³
Composition Polystyrene or Polystyrene with coploymer grafted surface

These particles are internally dyed using the Thermo Scientific™ Color-Rich internal dyeing method or by utilizing the proprietary Firefli™ fluorescent dyeing process. Color-Rich dyeing methods provide exceptional color saturation, prevent dye leaching in aqueous media and leave the surface free for covalent coupling through a COOH group and optimal immunological reactivity.

  • Dye-free surface for coupling
  • High protein binding capacity
  • Hydrophilic—readily adsorbs and couples proteins
  • Optimizes assays by controlling sensitivity, specificity and stability
  • Optimized acid content
  • Easy one-step covalent coupling protocols
  • Ensures reproducibility
  • Binds ligands without dye interference
  • Offers the optimal size for most latex-based lateral flow tests: 0.4μm nominal diameter (DB1040CA through DBK1040CB)
  • Ensures uniform migration through membranes with a coefficient of variation (CV) in diameter of less than 5%

Recommended for:

  • Clinical diagnostics
  • Molecular biology
  • Lateral flow, turbidimetric and slide aggulation assays