title: The right time and the right place: the concepts and concerns of drug delivery systems.
abstract: The distinction between active drugs and active biomaterials is being gradually eroded. One of the areas where the interface between drugs and devices needs greater clarity is controlled delivery of drugs by materials and this article discusses the basic mechanisms that are involved.
authors: Clinical Engineering Department, Royal Liverpool University Hospital, UK. dfw.ce@liverpool.ac.uk
authors: D
authors: D
authors: Williams
mesh_terms: D001672:Biocompatible Materials; D004333:Drug Administration Routes; D016503:Drug Delivery Systems / Q000379:methods* / Q000639:trends; D004867:Equipment Design; D006801:Humans; D012680:Sensitivity and Specificity
chemical_list: D001672:Biocompatible Materials