Delivery of agents.

摘要

An antibody fragment able to bind to a target site is prolonged by an additional peptide. The therapeutic agent is bound to this peptide or means are provided to bring about such binding. The antibody fragment and possibly also the therapeutic agent are included in a product so that binding to the target site delivers the therapeutic agent to the vicinity. The product may for example be for dental care, such as a toothpaste or mouthwash and the antibody fragment may then bind to a component of dental plaque.