PH Indicators

In cell biology, pH plays a crucial role in maintaining the proper functioning of cells and biological molecules. pH is generally maintained between 6.8-7.4 in the cytoplasm and in acidic organelles such as lysosomes, pH can reach as low as ~4.5. It’s also known to regulate various cellular processes, and there are a number of acid sensitive ion channels (ASICs) that modulate their activity in response to changes in pH.