SURFACE REVERSIBLY INTERCONVERTIBLE AMONG ZWITTERIONIC ANIONIC AND CATIONIC SURFACES THROUGH ELECTRICAL MODULATION

摘要

The present invention provides a zwitterionic surface comprising a first compound having a positively charged terminal group and a second compound having a negatively charged terminal group, wherein the first compound and The second compound forms a low density self-assembled monolayer (LDSAM), and converts to a cationic surface when a positive potential is applied, and to an anionic surface when a negative potential is applied. As for a surface characterized in that the surface according to the invention is a zwitterionic comprising a first compound having a positively charged terminal group and a second compound having a negatively charged terminal group The low density self-assembled monolayer (LDSAM) allows for reversible interconversion to cationic, anionic and zwitterionic surfaces by dislocation treatment, thus providing multiple functions (eg For example, it can be usefully used in various fields including biomedical / tissue engineering, medical equipment and basic cell research as a multi-functional dynamic surface capable of implementing selective attachment, killing and desorption of bacteria.