阅读说明：本技术 一种具有高效吸附尿素功能的特定形貌纳米淀粉及其制备方法与应用 (Specific-morphology nano starch with efficient urea adsorption function and preparation method and application thereof ) 是由 刘培 潘欣 张黄琴 张晔钧 钱大玮 段金廒 于 2021-08-02 设计创作，主要内容包括：本发明公开了一种具有高效吸附尿素功能的特定形貌纳米淀粉及其制备方法,本发明以具有各种结晶构型的淀粉为原料,在超声的辅助下,利用二甲亚砜(DMSO)破坏淀粉间的相互作用力的方法制得淀粉纳米粒。通过改变DMSO和水的体积比以及淀粉的投入量,可以形成包括花状、丝状、片状等形貌的纳米淀粉粒,所形成的纳米淀粉粒的粒径分布在95-180 nm之间,可以有效吸附尿素,吸附量在27.31-135.60 mg/g之间。通过本发明制备的纳米淀粉粒尺寸较小,形貌均一,产量较高,具有较好的尿素吸附能力,可作为透析液再生剂应用于血液透析系统或腹透透析系统。(The invention discloses a specific-morphology nano-starch with a function of efficiently adsorbing urea and a preparation method thereof. By changing the volume ratio of DMSO to water and the input amount of starch, nano starch grains with flower-shaped, thread-shaped, sheet-shaped and other shapes can be formed, the grain size distribution of the formed nano starch grains is between 95 and 180nm, urea can be effectively adsorbed, and the adsorption amount is between 27.31 and 135.60 mg/g. The nano starch prepared by the method has the advantages of small particle size, uniform appearance, high yield and good urea adsorption capacity, and can be used as a dialysate regenerant to be applied to a hemodialysis system or a peritoneal dialysis system.)