METHOD FOR SELECTIVELY FUNCTIONALIZING NON-MODIFIED SOLID SURFACE AND METHOD FOR IMMOBILIZING ACTIVE MATERIAL ON THE FUNCTIONALIZED SOLID SURFACE

摘要

Provided is a method for selectively functionalizing unmodified solid surface, not oxidized and nitrified, into an aldehyde group, and a method for immobilizing an active material such as bio material or functional material on the functionalized aldehyde solid surface through strong and stable chemical bonding. Differently from a conventional method immobilizing deoxyribonucleic acid (DNA) using a cross linker, the method of the present invention does not require a cross linker reaction step to thereby shorten a process. Also, since a cross linker is absent, the monomolecular layer on the surface of a device i s thin, which reduces a perturbation effect by molecular layer. This is useful in fabrication of molecular electronic devices and bio- active devices. In addition, since the bio material or functional material is selectively immobilized only on the unmodified surface, the present invention can functionalize only a specific solid surface and develop a highly sensitive sensor and an improved functional device.