Plasma modified polymers as a support for enzyme immobilization II. Amines plasma

Deposition of chemically reactive and repellent sites on biosensor chips for reduced non-specific binding

“…The C 1s spectra show a saturated hydrocarbon peak and 1705 cm -1 could be assigned to the C-O vibration mode of amides and a broad peak centered around 1644 cm -1 can be attributed to free amines. [21][22][23][24] Another peak around 1554 cm -1 can be attributed to N-H bend of NH 2 hydrogen-bonded to Si-OH. The ATR-FTIR measurements taken before and after ultrasonicaiton in water, SDS and PBS Tween also demonstrated that the coating adhesion to COP substrate is good.…”

Incorporation of Primary Amines via Plasma Technology on Biomaterials

“…Amino groups are usually incorporated on the surface using either non-polymer-forming gases (amine plasma activation) such as ammonia (NH 3 ) or nitrogen (N 2 ), or amine monomers (amine plasma polymerization) in the plasma medium. The former etches the biomaterial surface and introduces nitrogen functionalities; the latter deposits a plasma polymer layer containing nitrogen groups on the surface [26].…”

“…Amine-functionalized surfaces have previously been obtained through plasma polymerization using different monomers such as allylamine [27,28], ethylenediamine [29][30][31], n-heptylamine [32,33], propylamine [34,35], cyclopropylamine [18], diaminocyclohexane [36,37], and butylamine [26].…”

Surface and Electrochemical Properties of Plasma-Treated Polypropylene Track Membrane

“…The effect of low-temperature plasma on porous polymer membranes is of particular interest, as it gives rise to new advanced materials used in some modern membrane processes -membranes for bioreactors, fuel cells, catalytic reactions, etc. [5][6][7] In this respect, several research works published recently reported on the plasma effect on polymer membranes, [8][9][10][11] including the track ones, [12][13][14][15] with the purpose of modifying their properties. Membranes of this type obtain by irradiation of polymer films with energetic heavy ions and subsequent etching of tracks of these particles up to the through pores.…”

“…This deduction coincides to conclusions of other authors. [4,8] Here we do not give a detailed description of the mechanism of the polypropylene oxidation under plasma effect. We have not enough data for it.…”