Polystyrene beads are available in several formats - unmodified, carboxyl-modified, or amine-modified - as well as various colors and numberous sizes. This particular product is an amine-modified bead containing a blue fluorescent dye. See the image below to review the basic structure. This is a surface modification that allows for the attachment of certain ligands such as polypeptides via the carboxyl-terminus. The dyes are embedded in the polystyrene bead during the manufacturing process. These are not bound to the surface of the bead.
L9654
Latex beads, amine-modified polystyrene, fluorescent orange
aqueous suspension, 1.0 μm mean particle size
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| Size/SKU | Availability | Price |
|---|---|---|
1 mL | Available to ship TODAY | $98.50 |
About This Item
$98.50
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form
aqueous suspension
Quality Segment
composition
Solids, 2.4-2.6%
technique(s)
cell based assay: suitable
mean particle size
1.0 μm
fluorescence
λex ~520 nm; λem ~540 nm
application(s)
cell analysis
Application
Amine-modified polystyrene latex beads (fluorescent orange) have been used to develop an electrochemical nitrite nanosensor as well as to validate a pharyngeal aspiration technique for exposing the mouse lung to respirable particles.
They have also been used:
- to test nanofiber filtration efficiency
- in the preparation of bilayer tissue-simulating phantoms, which are artificial materials used in biomedical optical instrumentation
- to copolymerize collagen coated stiff polyacrylamide gels to seed cancer cells for traction force microscopy
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This Item | |||
|---|---|---|---|
| description aqueous suspension, 1.0 μm mean particle size | description aqueous suspension, 0.1 μm mean particle size | description aqueous suspension, 2.0 μm mean particle size | description aqueous suspension, 0.1 μm mean particle size |
| form aqueous suspension | form aqueous suspension | form aqueous suspension | form aqueous suspension |
| fluorescence λex ~520 nm; λem ~540 nm | fluorescence λex ~475 nm; λem ~540 nm | fluorescence λex ~520 nm; λem ~540 nm | fluorescence λex ~520 nm; λem ~540 nm |
| technique(s) cell based assay: suitable | technique(s) cell based assay: suitable | technique(s) - | technique(s) cell based assay: suitable |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level - |
| application(s) cell analysis | application(s) cell analysis | application(s) - | application(s) cell analysis |
| composition Solids, 2.4-2.6% | composition Solids, 2.5% | composition Solids, 2.4-2.6% | composition Solids, 2.5% |
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Storage Class
10 - Combustible liquids
WGK
WGK 2
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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Does the polystyrene bead have amine groups attached to the bead surface? What is the purpose of this modification? How is the dye bound to these beads.
1 answer-
Helpful?
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Is there any data on the temperature dependence of the fluorescence of these beads? (e.g. % decrease/K increase in temperature)
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