DESCRIPTION
Each dye-doped silica nanoparticle (DDSNP) contains thousands of fluorescein dye molecules. Compared to a single dye molecule, a nanoparticle achieves over 300-fold fluorescence intensity. Unlike alternatives, the nanoparticle withstands photo-bleaching, is water-soluble and does not have troublesome “blinking.” Exclusive technology allows covalent coupling of biomolecules to a fluorescein nanoparticle permitting development of sensitive analyte detection systems.
STORAGE:4ºC - Gently sonicate before use.
TYPICAL SPECIFICATIONS
| Concentration: |
10 mg/mL |
| Particle Size: |
60nm |
| Range: |
< ±9 nm |
| Brightness: |
300 fold of single fluorescein molecule
|
| Excitation: |
492 nm |
| Emission: |
516 nm |
| Stoke’s Shift: |
24nm |
| Surface Chemistry: |
Carboxy or Amino |
|
|
QUALITY ASSURANCE ASSAY
FLUORESCEIN