ATTO Rho14 Biotin

ATTO Rho14 Biotin is a biotinylated ATTO Rho14 fluorophore designed for fluorescence labeling workflows that require strong affinity capture by streptavidin or avidin. Its rhodamine-like emission enables bright detection in fluorescence imaging and fluorescence-based assays, while the biotin handle supports conjugate assembly for molecular imaging reagent development, pull-down experiments, and immobilization on biotin-binding surfaces.

1. Streptavidin Immobilization Assays

ATTO Rho14 Biotin is frequently used to generate fluorescent, streptavidin-captured reagents for assay development and surface-based binding studies. Researchers use the biotin moiety to anchor the fluorophore to streptavidin-coated plates, beads, or biosensor surfaces, enabling readouts in plate readers and fluorescence microscopes. This format is particularly convenient when a consistent fluorophore density and stable attachment to biotin-binding materials are required for workflow reproducibility.

2. Fluorescence Imaging Probes

ATTO Rho14 Biotin supports targeted fluorescence imaging workflows where biotin-mediated conjugation is the key design element. Common use cases include preparing biotinylated antibodies, peptides, or affinity ligands and then decorating them with ATTO Rho14 Biotin to visualize binding events on cells, extracellular matrices, or immobilized biomolecules. The rhodamine-like brightness supports clear visualization in fluorescence microscopy and related imaging platforms used for localization and colocalization studies.

3. Flow Cytometry Labeling Reagents

ATTO Rho14 Biotin is used to create fluorescent labeling reagents for flow cytometry experiments that rely on biotin-streptavidin coupling. Typical workflows include labeling biotinylated recognition molecules and then staining cells with streptavidin conjugates carrying the ATTO Rho14 signal, or building multicolor panels where biotin provides a modular attachment strategy. This approach is valued when researchers need flexible conjugate construction and consistent fluorescence reporting across samples.

4. Fluorescent Pull-Down and Detection

ATTO Rho14 Biotin is well suited for fluorescence-based pull-down and detection workflows in which biotinylated capture reagents are used to isolate proteins, complexes, or nucleic acid-associated components. By using streptavidin or avidin to immobilize the biotinylated fluorophore, researchers can monitor enrichment by fluorescence readout and track binding under assay conditions. Such labeling is also used to construct fluorescent standards for method development and normalization in fluorescence assays.