Used primarily in microscopy, the mounting solution preserves and immobilizes specimens on microscope slides. It prevents dehydration and degradation of biological samples, maintaining structural integrity during storage and imaging. Some mounting solutions include antifade agents that reduce fluorescence fading, making them essential in fluorescence microscopy. They are also used to seal coverslips, minimizing movement and contamination. Different types are chosen based on whether the sample is to be examined temporarily or permanently.