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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1 ML
$95.10
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aqueous suspension
Quality Level
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
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This Item | L9529 | L9904 | L1403 |
|---|---|---|---|
| form aqueous suspension | form aqueous suspension | form aqueous suspension | form aqueous suspension |
| composition Solids, 2.4-2.6% | composition Solids, 2.4-2.6% | composition Solids, 2.5% | composition Solids, 2.5% |
| technique(s) cell based assay: suitable | technique(s) - | technique(s) cell based assay: suitable | technique(s) - |
| mean particle size 1.0 μm | mean particle size 2.0 μm | mean particle size 0.1 μm | mean particle size 0.5 μm |
| fluorescence λex ~520 nm; λem ~540 nm | fluorescence λex ~520 nm; λem ~540 nm | fluorescence λex ~475 nm; λem ~540 nm | fluorescence λex ~520 nm; λem ~540 nm |
| application(s) cell analysis | application(s) - | application(s) cell analysis | application(s) - |
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[1]
- in the preparation of bilayer tissue-simulating phantoms, which are artificial materials used in biomedical optical instrumentation[2]
- to copolymerize collagen coated stiff polyacrylamide gels to seed cancer cells for traction force microscopy[3]
Storage Class
10 - Combustible liquids
wgk_germany
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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MMP proteolytic activity regulates cancer invasiveness by modulating integrins
Das A, et al.
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Development of thin skin mimicking bilayer solid tissue phantoms for optical spectroscopic studies
Nivetha KB and Sujatha N
Biomedical Optics Express, 8(7), 3198-3212 (2017)
Development of thin skin mimicking bilayer solid tissue phantoms for optical spectroscopic studies.
K Bala Nivetha et al.
Biomedical optics express, 8(7), 3198-3212 (2017-07-19)
Ronald Lulijwa et al.
Journal of fish biology, 96(3), 731-746 (2020-01-30)
Polyinosinic:polycytidylic acid [poly (I:C)] was administered in vivo to Chinook salmon (Oncorhynchus tshawytscha) post-smolts to determine the immune responses on haematological and cellular functional parameters, including spleen (SP), head kidney (HK) and red blood cell (RBC) cytokine expression, as well
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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.
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