Biologically Derived Gels for the Cleaning of Historical and Artistic Metal Heritage

In the general global rise of attention and research to seek greener attitudes, field cultural heritage (CH) makes no exception. last decades, an increasing number sustainable biologically based solutions have been proposed for protection care artworks. Additionally, safety target artwork operator must be kept as core goals. Within this scenario, new products treatments should explored implemented in common conservation praxes. Therefore, review addressing metal is aimed report derived gel formulations already specific area reliable tools cleaning. Promising bio-gel-based protocols, still conservation, are also presented promote their investigation by stakeholders conservation. After opening overview on practices cleaning metallic surfaces CH, focus will moved onto potentialities gel-alternatives particular ones with a biological origin. more detail, we displayed water-gels (i.e., hydrogels) solvent-gels organogels) together bio-solvents. The discussion closed light state-of-the-art future perspectives.