My talk will focus on polyphenols and catecholamines. Catecholamine is one important category of polyphenols, and it is characterized by the fact that it contains an amine group and has excellent immediate adhesion to proteins. Catecholamine is well known as a mussel-inspired adhesive material, represented by polydopamine (ref). Early commercialization research utilized the adhesive properties of catecholamine for hemostatic materials.
Subsequently, research has been conducted on the bioadhesive properties of polyphenols. By mixing polyphenols with various biocompatible polymers such as poly(ethylene glycol) (PEG), poly(vinyl alcohol) (PVA), poly(vinyl pyrrolidone) (PVP), poly(lactic acid) (PLA)-PEG, PEO-PPO-PEO, or DNA, and then incubating them, it is possible to create adhesives for cosmetic use. These polyphenol-based adhesives are environmentally friendly because they are made in water, which distinguishes them from traditional synthetic polymer adhesives that require organic solvents. My talk will show the performance of polyphenol cosmetic glues.