Quantum Dots Magnetic Microspheres 615 nm

Quantum Dots Magnetic Microspheres (615 nm) are sophisticated bifunctional nanocomposites that integrate high-intensity photoluminescent Quantum Dots within a protective magnetic inorganic matrix. This specialized architecture significantly enhances structural stability, provides an exceptional quantum yield, and extends fluorescence lifetimes compared to traditional organic dyes. The surface is meticulously functionalized with a high density of carboxyl (-COOH) groups, imparting excellent hydrophilicity and facilitating the stable covalent attachment of antibodies, proteins, or nucleic acids. By combining the rapid target enrichment capabilities of superparamagnetic materials with the sharp, narrow-band emission of 615 nm QDs, these microspheres offer a "trace-and-capture" solution that is both highly biocompatible and resistant to photobleaching, making them a cornerstone for high-sensitivity diagnostic platforms.

Applications

• High-Sensitivity Immunochromatography: Optimized for Lateral Flow Immunoassays (LFIA) and test strips, providing a significantly lower detection limit (LOD) and more stable signal readout than gold nanoparticles or latex beads.
• Magnetic-Fluorescent Bioseparation: Enables the simultaneous labeling, tracking, and rapid magnetic isolation of specific cells, pathogens, or biomarkers from complex liquid biopsies.
• Advanced Point-of-Care (POC) Diagnostics: Serves as a versatile platform for the rapid detection of infectious diseases, cardiac markers, and hormones through precise fluorescence quantification.
• Molecular and Chemical Sensing: Utilized in the development of multiplexed assays for the simultaneous detection of multiple analytes in a single sample, leveraging the magnetic enrichment to enhance signal-to-noise ratios.
• Targeted Cargo Imaging: Acts as a traceable carrier in biomedical research for monitoring the movement and distribution of target-specific molecules under an external magnetic field.
• Environmental Pollutant Analysis: Applied in the rapid extraction and fluorescent identification of trace heavy metals or organic contaminants in aqueous environments.