👉 Percoll is a technique used in cell sorting and immunohistochemistry. It involves collecting cells by using a microtiter plate, which is then placed on a platform that allows for sorting of the cells based on their size or morphology. The cells are then sorted according to their size (e.g., smaller cells being more prominent) or by their shape (e.g., larger cells being more prominent). This technique is used in immunohistochemistry to sort and compare different cell types,