Product Overview
CFR030-10 Carboxyl Red Fluorescent Microspheres are high-quality fluorescent polystyrene nanoparticles functionalized with surface carboxyl groups. Combining strong red fluorescence, excellent particle size uniformity and reactive carboxyl chemistry, these nanoparticles provide an ideal platform for highly sensitive bioassays and fluorescence-based detection.
Supplied as a 1% aqueous suspension, CFR030-10 exhibits bright fluorescence, stable dispersion and excellent batch-to-batch consistency. The surface carboxyl groups can be activated using EDC/NHS coupling chemistry to covalently immobilize antibodies, proteins, peptides and other biomolecules, making these nanoparticles suitable for lateral flow assays, fluorescence immunoassays, biosensors and molecular diagnostics.
Key Features
Uniform 30 nm particle size
Bright red fluorescence
Surface carboxyl functional groups
High fluorescence intensity
Excellent particle uniformity
Stable aqueous suspension
Compatible with EDC/NHS coupling
High biomolecule conjugation efficiency
Low background fluorescence
Excellent batch-to-batch consistency
Technical Specifications
Parameter | Specification |
|---|
Product Code | CFR030-10 |
Material | Fluorescent Polystyrene Microspheres |
Particle Size | 30 nm |
Surface | Carboxyl (-COOH) |
Solid Content | 1% Suspension |
Excitation (Ex) | 530 nm |
Emission (Em) | 580 nm |
Appearance | Red Fluorescent Suspension |
Storage | 2–8°C |
Packaging | 10 mL / 20 mL / 100 mL |
Applications
Lateral Flow Assays (LFA)
Fluorescence Immunoassays
Chemiluminescence Immunoassays (CLIA)
Biosensors
Molecular Diagnostics
Antibody Conjugation
Protein Labeling
Fluorescence Calibration
Bioassay Development
Life Science Research
Product Advantages
CFR030-10 combines nanoscale particle size with bright red fluorescence and reactive surface carboxyl groups, enabling highly sensitive fluorescence detection and efficient biomolecule immobilization. The 30 nm particles provide a large specific surface area for antibody conjugation while maintaining excellent suspension stability and low nonspecific binding. These characteristics make CFR030-10 an excellent choice for next-generation lateral flow assays, fluorescence immunoassays, biosensors and diagnostic reagent development.
Storage and Handling
Store at 2–8°C.
Do not freeze.
Protect from direct light.
Keep the container tightly sealed.
Gently invert before use.
Avoid repeated freeze-thaw cycles.
Prevent microbial contamination during handling.
Customization Service
SANYU GROUP provides customized fluorescent microspheres including:
Customized particle sizes
Customized fluorescence intensity
Customized excitation and emission wavelengths
Surface functionalization
Customized solid content
OEM manufacturing
Bulk production
Custom packaging
Frequently Asked Questions
What are Carboxyl Red Fluorescent Microspheres?
Carboxyl Red Fluorescent Microspheres are fluorescent polystyrene nanoparticles with surface carboxyl functional groups. They provide bright red fluorescence and are widely used in immunoassays, lateral flow assays, biosensors and fluorescence-based diagnostics.
What are the excitation and emission wavelengths of CFR030-10?
CFR030-10 has an excitation wavelength of 530 nm and an emission wavelength of 580 nm, making it suitable for red fluorescence detection systems.
What applications is CFR030-10 suitable for?
CFR030-10 is widely used for lateral flow assays (LFA), fluorescence immunoassays, molecular diagnostics, antibody conjugation, protein labeling, fluorescence calibration, biosensors and life science research.
Can antibodies be conjugated to CFR030-10?
Yes. The surface carboxyl groups can be activated using EDC/NHS chemistry for stable covalent conjugation of antibodies, proteins, peptides and other amine-containing biomolecules.
How should CFR030-10 be stored?
Store the suspension at 2–8°C, protect it from light, avoid freezing, and gently mix before use to maintain a homogeneous suspension.
