Research progress of superhydrophobic surfaces in the field of anti/procoagulant
In recent years,with the research on the application of superhydrophobic materials in condensation heat transfer,oil-water separation,deicing and anti-fogging,surface corrosion prevention,pipeline resistance reduction and other aspects gradually becoming mature.The application prospect of superhydrophobic materials in the biomedical field has also attracted the attention of scholars.Coagulation thrombus and hemorrhagic shock caused by massive hemorrhage when medical equipment contacts with blood will pose great threat to the life safety of patients.In order to effectively solve that problems of thrombus occurrence and massive blood loss,many scholars at home and abroad have carried out a great deal of research.Due to the special surface wettabili-ty and lower surface free energy of the super-hydrophobic material,the platelet adhesion amount on the surface of the material can be significantly reduced.The combination of the super-hydrophobic material and hydrophilic material can reduce the bleeding amount and the possibility of secondary laceration bleeding of a wound on the premise of hemostasis.Meanwhile,the research shows that the super-hydrophobic material also has good anti-bacterial property.Therefore,the research on superhydrophobic materials has become a hot spot and direction in this field.Based on this,this paper first introduces the basic theory of superhydrophobic surfaces,mainly in-cluding the Young wetting model,Wenzel wetting model and Cassie-Baxter wetting-model,then the mechanism of superhydrophobic materials in the process of anti-coagulation and pro-coagulation is expounded in detail.The current research status of superhydrophobic materials in the field of blood contact is discussed,and the main problems in the application of superhydrophobic materials in this field are pointed out.Finally,the future devel-opment of superhydrophobic materials is prospected.