A kind of preparation method of anti-biological pollution coating on sensor electrode surface
An anti-biological pollution, sensor electrode technology, applied in the direction of material electrochemical variables, etc., can solve the problems of blood component metabolism detection error, inability to fully express the real situation, blood sample centrifugation processing pollution, etc., to achieve long-term stable anti-biological pollution ability, Strong anti-biological pollution ability and the effect of inhibiting non-specific adsorption
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Embodiment 1
[0028] A preparation method for an anti-biological contamination coating on the surface of a sensor electrode, comprising the following specific steps:
[0029] (1) Synthesis of photosensitive hyaluronic acid
[0030] Dissolve 1.0g of hyaluronic acid (HA) in water and stir until completely dissolved to form an aqueous solution of hyaluronic acid; add 4-dimethylaminopyridine (DMAP) in sequence (the amount of the substance is 0.4 times the number of HA repeating units), Glycidyl methacrylate (GMA) (10 times the number of HA repeating units), tetrabutylammonium bromide (TBAB) (the amount of the substance is 0.8 times the number of HA repeating units), react at room temperature for 48h; Precipitate with acetone, transfer to a dialysis bag for dialysis against water for 4 days; freeze-dry the dialyzed solution to obtain photosensitive hyaluronic acid HA-GMA, store it in the dark for future use;
[0031] (2) Preparation of anti-biological contamination coating
[0032] Dissolve 50...
Embodiment 2
[0034] A preparation method for an anti-biological contamination coating on the surface of a sensor electrode, comprising the following specific steps:
[0035] (1) Synthesis of photosensitive hyaluronic acid
[0036] Dissolve 0.5g of hyaluronic acid (HA) in water and stir until completely dissolved to form a hyaluronic acid aqueous solution; add 4-dimethylaminopyridine (DMAP) in sequence (the amount of the substance is 1 times the number of HA repeating units), Glycidyl methacrylate (GMA) (5 times the number of HA repeating units), tetrabutylammonium bromide (TBAB) (the amount of the substance is 1 times the number of HA repeating units), react at room temperature for 24h; Precipitate with acetone, transfer to a dialysis bag for dialysis against water for 7 days; freeze-dry the dialyzed solution to obtain photosensitive hyaluronic acid HA-GMA, store it in the dark for future use;
[0037] (2) Preparation of anti-biological contamination coating
[0038] Dissolve 20 mg of ph...
Embodiment 3
[0040] A preparation method for an anti-biological contamination coating on the surface of a sensor electrode, comprising the following specific steps:
[0041] (1) Synthesis of photosensitive hyaluronic acid
[0042]Dissolve 1 g of hyaluronic acid (HA) in water and stir until it is completely dissolved to form an aqueous solution of hyaluronic acid; sequentially add 4-dimethylaminopyridine (DMAP) (the amount of the substance is twice the number of HA repeating units), formazan Hydroxyethyl acrylate (HEMA) (20 times the number of HA repeating units), tetrabutylammonium bromide (TBAB) (the amount of the substance is 4 times the number of HA repeating units), react at room temperature for 12h; Precipitation, transferred to dialysis bag for dialysis against water for 7 days; freeze-dried the dialyzed solution to obtain photosensitive hyaluronic acid HA-HEMA, and stored it away from light for later use;
[0043] (2) Preparation of anti-biological contamination coating
[0044] D...
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