Thousands of researchers spend time pampering their primary cells and cell lines every day, with the aim of defining their optimal cell culture conditions. Researchers are in effect trying to control numerous cellular parameters (oxygene levels, fresh media supply, incubation temperature…) and monitor their “viability” on a regular basis. But what about the internal cellular temperature? Have you ever considered this biological parameter to monitor the “wellness” of your cultivated cells? In this post, let’s take a look at the characteristics of a new, cell permeable, fluorescent thermometer for living cells.