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Key Documents

FR180380624

Sigma-Aldrich

Estapor® Fluorescent Carboxylated microspheres

F1-EU-030 FluoEU COOH PS 1%, Red Fluorescent carboxylated microspheres 300nm, Lateral Flow Immunoassay

Synonym(s):

Detector Particles, Fluorescent Beads

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About This Item

UNSPSC Code:
13102026

Quality Level

300

packaging

bottle of 10-1000 mL (dark bottle)

manufacturer/tradename

Estapor®

concentration

1% solids

technique(s)

lateral flow assay: suitable (Immunoassay)

color

fluorescent red

matrix

polymeric Poly-styrene-co-acrylate

bead diameter

0.270-0.330 μm±<5%

capacity

200-500 μeq/g surface charge density

λmax

350 nm (Emission at 613 nm)

functional group

carboxylic acid (COOH)

storage temp.

2-8°C

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General description

Estapor® microspheres have been the top choice for many lateral flow diagnostic test manufacturers. Used in millions of assays made by internationally known brands, our microspheres are adapted to both qualitative and quantitative Lateral Flow ImmunoAssays.

Application

Main applications of the fluorescent microspheres include qualitative and quantitive Laterflow Immunoassays (LFIA)

Features and Benefits

Europium microspheres provide several advantages over traditional fluorescent microspheres:• Significantly improve lateral flow assay sensitivity• Drastically reduce background fluorescence• Make assays easier to read and quantify• Exhibit an enhanced fluorescent quantum yield facilitating a low detection limit• Exhibit a much longer Stokes shift than traditional fluorescent labels.

Legal Information

Estapor is a registered trademark of Merck KGaA, Darmstadt, Germany

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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