“…To improve the stability, homogeneity and open porosity of aerogels, precursor materials are essential, such as polysaccharides, 101,102 proteins, 103 macromolecular compounds, 15 and inorganic molecules, 104 which affect the degree of cross-linking between the polymer chains and thus improve the 3D structure of the gel. More importantly, functional aerogels with antibacterial and antioxidant properties can be achieved by incorporating polyphenols, 105,106 essential oils, 107 and metal ions 108 into them.…”