The accurate measurement of potassium ion levels in biological samples is essential given the impact such ion levels have on many aspects of homeo-stasis. Normal potassium levels are important for the maintenance of heart and nervous system function. Traditionally, potassium ions have been measured in plasma or serum using ion-selective electrodes,...

Heterogeneity within cell populations is a major obstacle for gathering accurate data for genomic and proteomic studies. Single cell analysis has emerged as the platform technology for solving the problem of cell heterogeneity in basic cell studies. A more precise understanding of single cell behavior and differences between individual cells would...