Binding Affinity

Binding affinity refers to how strongly two molecules, such as a drug and its target (like a protein), interact with each other. Think of it like a lock and key: the better the fit, the stronger the bond. A high binding affinity means the molecules stick together tightly and are less likely to separate, which can lead to more effective biological responses. Conversely, a low binding affinity suggests a weak interaction, making it easier for them to part ways. Understanding binding affinity is crucial in fields like medicine and biochemistry, as it influences drug effectiveness and interactions.