Advances in polyaniline for biomedical applications

Conducting polymers are an outstanding class of materials characterized by electroconducting properties that make them good candidates for applications in several sectors. Among them, polyaniline (PANI) is unique for its extraordinary ability to conduct electricity, biocompatibility and low toxicity. In spite of its surprising features, to date PANI has not yet found any notable application, because of its low solubility and processability. In order to overcome these limitations, PANI-based composites and blends have been produced. The present review focuses on the most recent advances in PANI biomedical applications, such as drug delivery, cancer therapy, as well as its antioxidant, antimicrobial and antivirus activity. A look to the synthetic procedures is also reported because it is crucial for the realization of more innovative materials in the next future.