Ophelie Saussus

Abstract The response regulator CheY is an intracellular signaling molecule that plays a central role in chemotaxis signaling in E. coli cells. Here, we show that changes in CheY-P concentration and flagellar motor rotation are highly correlated within a single cell after stimulation by the attractant l-serine. To monitor the CheY-P concentration and cellular behavior, FRET between CheY-YFP and CheZ-CFP and flagellar rotation were monitored simultaneously.

Abstract Somatostatin/allatostatin C signaling regulates sleep, metabolism, memory, and longevity, but the underlying neuronal mechanisms remain unclear. We investigated the Caenorhabditis elegans somatostatin/allatostatin C ortholog NLP-99 and its receptor NPR-16. We found that the wake-active AIY neurons release NLP-99 to activate NPR-16.

Abstract The rapidly growing demand for lithium in energy storage technologies necessitates more efficient lithium extraction methods from salt lakes. Direct lithium extraction (DLE) has gained attention, as it addresses more than 50% lithium losses in traditional salt-pond–based processes. However, separating lithium ion from sodium ion or potassium ion remains challenging due to their similar charge and hydration radii.