Mussel inspired self-polymerized catecholamine coating has been widely utilized as a
versatile coating strategy which works for a variety of substrates. Here, we report the
nanomechanical measurement and contribution of primary amine group to poly
(catecholamine) coating by using a surface forces apparatus, for the first time. The adhesive
strength between poly (catecholamine) layers is 30 times higher than that of poly (catechol)
coating. The origin of strong attraction between poly (catecholamine) layers is likely due to …

Mussel‐inspired self‐polymerized catecholamine coatings have been widely utilized as a
versatile coating strategy that can be applied to a variety of substrates. For the first time,
nanomechanical measurements and an evaluation of the contribution of primary amine
groups to poly (catecholamine) coatings have been conducted using a surface‐forces
apparatus. The adhesive strength between the poly (catecholamine) layers is 30‐times
higher than that of a poly (catechol) coating. The origin of the strong attraction between the …