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Western Blot in Single-Cell Proteomics: Unlocking Protein Insights One Cell at a Time Proteomics has traditionally focused on populations of cells, averaging signals across millions of cells and often masking subtle but critical variations. In recent years, the field of single-cell proteomics has emerged, providing unprecedented insight into cellular heterogeneity, rare cell populations, and dynamic protein networks. Among the tools enabling this revolution, Western blotting has evolved to meet …