Organic cations are positively charged organic molecules that play important roles in various biological processes. They are commonly found in living organisms, where they function as neurotransmitters, hormones, and enzymes. Organic cations can also be used in drug delivery, as they can interact with cell membranes and facilitate the transport of drugs into cells. Research in this area often focuses on the synthesis and characterization of organic cations, as well as their interactions with biological systems. Scientists are interested in understanding how organic cations can be designed and modified to improve their effectiveness as drugs and therapeutic agents. Additionally, there is ongoing research into the mechanisms underlying the transport and metabolism of organic cations in the body. Overall, the study of organic cations is an important and diverse research area that has implications for drug development, biochemistry, and biomedicine.