BIOMOLECULE IMMOBILISATION USING ATMOSPHERIC PLASMA TECHNOLOGY

摘要

The present invention is related to method for immobilising a biomolecule on a surface by generating and maintaining an atmospheric pressure plasma, said method comprising the steps of: introducing a sample in the space between two electrodes, a mixed atmosphere being present between said electrodes, applying an alternating voltage to said electrodes for generating and maintaining a plasma in the volumetric space between the electrodes, said voltage having a profile as a function of time, defined by a sequence of time periods during which a positive or zero voltage is applied, alternated with time periods during which a negative or zero voltage is applied, and depositing a coating on a surface of said sample, characterised in that said mixed atmosphere comprises an aerosol comprising a reactive precursor and an aerosol comprising a biomolecule, both of which are deposited and immobilised during the depositing step.