Reagent
Microspheres
Two
recently introduced ranges of polymer microspheres
with a variety of surface functional groups and
bright visual and fluorescent colours. Most are
surfactant-free.
Coloured
and Fluorescent Microspheres forLateral Flow Diagnostics
These colored and fluorescent microspheres are
loaded with up to 25% dye by weight - much more
than comparable products. The
microspheres are designed for researchers who
are developing lateral flow diagnostic tests and
for other investigations in diagnostics and biotechnology
where labeling and detection of very low concentrations
is required.
A variety of surface functionalities (sulphate,
carboxyl, aldehyde-modified and carboxylate-modified)
are available and the 0.4 µm nominal diameter
is the optimal size for most latex-based lateral
flow tests. The coefficient of variation (C.V.)
of the diameter is less than 5% ensuring uniform
migration through membranes.
To
download a brochure in Adobe Acrobat
format giving full details of Reagent Microspheres
for Diagnostic Test Development, click here.
Microspheres
with Activated Surfaces for Bioscience Applications
A series of microspheres with surfaces designed
for attaching biological molecules. Most are prepared
without surfactants and all are available as plain
or dyed with a choice of high intensity plain
(red, blue or black) or fluorescent (choice of
two green and four red) dyes.
The
surface functionalities (and sizes) are: carboxylate-modified
(11 sizes from 0.04 to 5.2µm), aldehyde-modified
(five sizes, 0.10 to 0.80µm), carboxyl (four
sizes, 0.10 to 0.39µm) and sulphate (eight
sizes from 0.10 to 1.2µm). The sulphate
and carboxyl microsphere surfaces are hydrophobic.
All are supplied as aqueous suspensions at 4%
solids.
To
download a brochure in Adobe Acrobat
format giving full details of Reagent Microspheres
with Activated Surfaces, click
here.
Coloured
Fluorescent
See
also Fluorescent Microspheres
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