新技術・超音波励起フェライトメッキによるフェライトカプセル・ポリマー球の作製

概要

論文の詳細を見る
This is the first report on the combination of sonochemistry (the use of power ultrasound to stimulate chemical processes in liquids) with ferrite plating (a wet chemical method for synthesizing spinel ferrite films at low temperature from an aqueous solution). By means of ultrasonic enhancement, we successfully encapsulated polyacrylate microspheres whose average diameter was -0.25/1m with continuous ferrite coating in an aqueous solution of FeC1_2 at 70℃. This broke the previous lower limit (-0.3μm) on the size of the particles to be encapsulated; without application of the ultrasound waves} the ferrite coating became discontinuous or insular. The magnetic property of the continuous ferrite coating was better than those of the insular coating. The ferrite-encapsulated particles will greatly improve the performance of the enzyme immunoassay, Which has been put to clinical use as a cancer test reagent with insular-ferrite-coated particles.
社団法人日本磁気学会の論文
1997-03-01