ELISA Plate Washing (PBST): Used as a wash buffer to reduce nonspecific binding during enzyme-linked immunosorbent assays.

Western Blot (TBST): Serves as a membrane washing buffer to minimize background while preserving antigen–antibody interactions.

Immunohistochemistry/Immunocytochemistry: Applied as a wash/permeabilization buffer for fixed tissues and cells to improve antibody specificity.

Immunofluorescence Staining: Used for washing steps to lower nonspecific fluorescence and maintain epitope integrity.

Flow Cytometry Staining: Functions as a wash buffer to reduce cell clumping and background after antibody incubation (fixed/permeabilized cells).

Antibody/Protein Diluent: Employed as a diluent to stabilize proteins and decrease nonspecific interactions in immunoassays.

Nucleic Acid and Protein Blot Washes: Used in Southern/Northern blots and dot/slot blots to lower background on membranes.

Blocking Buffer Supplement: Combined with blockers (e.g., BSA, casein) to enhance blocking efficiency in plate and blot assays.

Cell Culture Wash (Non-sterile/Fixation Workflows): Applied to remove serum proteins and debris or gently detach loosely adherent cells prior to fixation.

Microbial Colony Screening: Used for washing colony lifts and immunoscreening workflows with Escherichia coli and Staphylococcus aureus.