Healthcare applications have transformed through the biomedical and clinical integration of ionic liquids, nanofluids, and nanoparticles, which brought innovative solutions to handle many healthcare challenges. These nanomaterials demonstrate unique physicochemical properties that span high surface area and viscosity, along with biocompatibility, because of which they are well-suited for biomedical applications like drug delivery as well as imaging and diagnostics and tissue engineering. The discussion investigates modern nanofluid application techniques across medical fields, which demonstrate their potential to revolutionize clinical uses. The ability of ionic liquids to dissolve multiple bioactive compounds enables pharmaceutical researchers to create new controlled-release systems for pharmaceutical stabilization. Ionic liquids serve as a drug delivery system that targets specific cells or tissues while reducing side effects because they improve the dissolution rate of poorly water-soluble pharmaceutical compounds. The chapter explores ionic liquids’ capability as contrast agents for medical imaging and diagnostics while discussing how they surpass traditional diagnostic agents and solvents. Nanofluids present enhances the properties in thermal conductance and electricity because they consist of liquids containing suspended nanoparticles, thus making them attractive for biomedical uses needing enhanced conductive properties and heat transport. This section explores how nanoparticles assist cancer hyperthermia therapy by letting healthcare provider’s heat tumor areas from the exterior to eliminate cancer cells. Researchers have investigated nanofluids for their abilities in advanced drug delivery methods because they help accurately release therapeutic ingredients. The chapter demonstrates how their significant surface-area-to-volume ratio enables their utilization in biosensing and diagnostic devices, which results in better detection sensitivity and specificity.