摘要
Developing biomimetic soft materials that display stimuli responsiveness using solely inorganic materials has been regarded as a challenge owing to that such materials?properties typically vary from those of living organisms.Traditionally,biomimetic soft materials have been developed using organic materials or inorganic materials modified with organic small molecules.In this study,we prepared cerium phosphate nanofibers(CePO_(4)NFs)by using inorganic agents only without further modification.The CePO_(4)NFs demonstrate sol-ge switching properties in response to pH value,allowing them to form a gel under high hydroxide ion(OH^(-))concentrations and turn back into sol under low OH^(-)concentrations.The formation of gel could be ascribed to the physical cross-linking of the nanofibers induced by the attractive electrostatic force of OH^(-)and surface Ce^(3+).As a result,CePO_(4)NFs are able to form a gel when in contac with blood of high pH value for hemostasis.This specific clotting mechanism makes them better candidates for hemostasis of heavy bleeding.
出处
《Rare Metals》
SCIE
EI
CAS
CSCD
2024年第10期5141-5151,共11页
稀有金属（英文版）
基金
financially supported in part by the Natural Science Foundation of Zhejiang Province(No.LR22E010001)
the National Natural Science Foundation of China(No.52073258)
the Fundamental Research Funds for the Provincial Universities of Zhejiang(No.RF-B2022006)
the R&D Program of Zhejiang University of Technology(No.KYY-HX-20190730)。
