The Hidden Influence of Small Molecules in Biological Systems  

Small molecules may be microscopic in scale, but their biological impact is enormous. Found in nearly every corner of life sciences from hormones to signaling metabolites these compounds regulate vital processes like cell communication, immune responses, and metabolic pathways. Their ability to traverse cell membranes and selectively interact with proteins or nucleic acids makes them indispensable tools in both basic research and applied therapeutics. Understanding how small molecules work at the molecular level enables scientists to manipulate biological systems with a level of control that was unimaginable just decades ago.