“…Among them, choline dihydrogen phosphate ([Chol][DHP]) has broad applicability, including in protein, DNA, and enzyme stabilization [22][23][24], piezo-electric biosensors [2], and growth media for Saccharomyces cerevisiae [25]. It is also used in electrochemical devices such as batteries, sensors, electrochromic and fuel cells [26], as an absorbent in heat pumps [27], in biomass pretreatment [28], the recovery of metals [29], drug delivery systems [30], and tissue engineering applications or human cell cultures [31,32].…”