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Vesicle-Based Sensors for Extracellular Potassium Detection

Potassium ions (K+) are one of the most abundant ions in intracellular fluid, affecting a wide variety of cellular processes in living organisms. In humans, irregularities in extracellular K+ levels contribute to pathologies including cardiovascular disease, immunological diseases, and some cancers. Despite the role of K+ ions, the detection, quantification, and monitoring of K+ remains difficult.