Biocompatible materials are substances that can safely interact with biological systems without causing harmful reactions. These materials are essential in medical applications, such as implants, prosthetics, and drug delivery systems, as they must integrate well with body tissues and fluids. Common examples of biocompatible materials include titanium, silicone, and certain types of polymers. These materials are designed to minimize inflammation and rejection by the body, ensuring that medical devices function effectively and enhance patient outcomes.