Fluorescent Particles
A premier selection of monodisperse polymeric fluorescent microspheres (fluorescent particles) incorporated with highly photostable organic fluorophores, designed for lateral flow rapid tests, point-of-care biosensors, and flow cytometry. Sourced with customized excitation and emission wavelengths, these beads yield high fluorescent signals, allowing for high sensitivity and clear signal-to-noise ratios in diagnostics.
Applications & Uses:
- High-sensitivity lateral flow rapid diagnostic test strips (colloidal gold replacement)
- Optical biosensors, POCT medical devices, and microfluidic assays
- Flow cytometry calibration and single-particle fluorescent tracking
- Target detection labeling for highly sensitive multiplexed immunoassay development
|
Benefits:
- High dye encapsulation density: Highly concentrated organic fluorophores are embedded inside the polymer core to prevent leaking and ensure strong signal output.
- Exceptional photostability: The dye is physically shielded by the polymer shell, reducing photobleaching under analytical laser or UV excitation.
- Broad wavelength selection: Offers diverse wavelengths from visible yellow-green to near-infrared to match diagnostic optical filters.
- Minimal matrix background: Far-red and near-infrared options bypass biological sample autofluorescence to provide clear analytical baselines.
Performance Attributes:
- Display narrow emission peaks for multiplexed assays with minimal spectral overlap.
- Ensure high fluorescent signal output per particle with consistent brightness.
- Physically robust polymer core prevents dye leaching in standard physiological buffers.
Sub Category:
BeadsPhysical Properties:
| Appearance: | Colored/opaque aqueous suspension |
|---|---|
| Particle size range: | 100 to 300 nm |
| Density: | Approximately 1.05 g per cubic cm |
| Solubility: | Completely dispersible in physiological water-based buffers |
Chemical Properties:
| Surface functional groups: | Unmodified (plain) or carboxylated (-COOH) |
|---|---|
| Fluorophore encapsulation: | Organic cyanine/coumarin fluorophores embedded inside the polystyrene core |
| Purity: | Free of residual free dye |
We’re Here to Help
Complete the following fields with your information, as well as a short, detailed description of your request and a NAGASE Specialist will be in touch with you shortly.