Atto-conjugated anti-bovine primary antibodies integrate synthetic fluorophores with bovine-specific antigen recognition, enabling sensitive fluorescence-based detection in veterinary and translational research. These reagents support multicolor imaging and flow cytometry with enhanced brightness, stability, and reproducibility in complex biological samples.
Fluorophore Properties
Atto dyes provide broad spectral coverage from green to near-infrared wavelengths. They exhibit high quantum yield, low spectral overlap, and strong resistance to photobleaching, ensuring stable signal acquisition. Typical variants span excitation ranges of 480–750 nm and emission ranges of 510–780 nm, enabling flexible multiplexing strategies.
Conjugation Principles
Fluorophores are covalently linked to antibody lysine or cysteine residues using NHS ester or maleimide chemistry. Controlled labeling ratios preserve antigen-binding affinity while optimizing fluorescence intensity. Purification steps remove unconjugated dye, ensuring consistent stoichiometry and reliable performance.
Detection Applications
- Flow cytometry: Multiparametric profiling of bovine immune cell subsets using high-color panels.
- Super-resolution microscopy: STED-compatible imaging enabling nanoscale resolution of 30–50 nm.
- Immunofluorescence: Spatial localization of antigens in fixed bovine tissues.
- Fluorescence correlation spectroscopy: Quantitative analysis of molecular binding kinetics.