The present invention relates to a method of forming shape-retentive and shape-conforming aggregate wound dressings and biomaterials composed of gel nanoparticles and wound or bodily fluid in which the aggregates are held together by non-covalent bond physical forces such as, without limitation, hydrophobic-hydrophilic interactions and hydrogen bonds. The method comprises introducing a dry powder of gel nanoparticles to a wound site in which the nanoparticles absorb some of the blood or wound exudate and coalesce in situ into the claimed shape-retentive aggregate dressing. The method also comprises introducing the dry nanoparticle powder in or on a wet bodily tissue in vivo to form the claimed shape-retentive biomaterial. In addition, the method also comprises incorporating biomedical agents to produce medicated aggregate dressings or biomaterials for a variety of medical applications. This invention also relates to uses of the method of formation of the shape-retentive aggregates of gel nanoparticles.
本发明涉及一种形成保持形状和适应形状的聚集伤口敷料和
生物材料的方法,其由凝胶纳米粒子和伤口或体液组成,这些聚集体由非共价键物理力保持在一起,例如,但不限于疏
水-亲
水相互作用和氢键。该方法包括将凝胶纳米粒子的干粉引入伤口部位,其中纳米粒子吸收一些血液或伤口渗出物,并在现场凝聚成所述的保持形状的聚集敷料。该方法还包括将干纳米粒子粉末引入或涂覆于体内湿润的组织中,以形成所述的保持形状的
生物材料。此外,该方法还包括将
生物医学剂合并进来,以生产用于各种医疗应用的医用聚集敷料或
生物材料。本发明还涉及使用凝胶纳米粒子形成保持形状的聚集体的方法。