The cell membranes,derived from natural sources,possesses unique physicochemical properties of phospholipid bilayers and biological functionalities of membrane proteins.This makes it an ideal biomimetic coating to enh...The cell membranes,derived from natural sources,possesses unique physicochemical properties of phospholipid bilayers and biological functionalities of membrane proteins.This makes it an ideal biomimetic coating to enhance the in vivo circulation and retention time of micro/nanodrug carriers,provide targeted drug delivery effects,and neutralize bacterial toxins.Notably,recent studies have successfully coated various types of cell membranes onto the surfaces of macroscopic materials,such as electrospun fiber scaffolds and decellularized matrices,to promote tissue repair,modulate host responses to foreign materials,and alleviate inflammation.This review comprehensively summarizes the latest research progress in the modification of macroscopic biomaterials with cell membranes.The insights provided aim to serve as a valuable reference for the preparation of cell membrane biomimetic coatings and their applications in the field of tissue repair.展开更多
The advancement of flexible electronics demands improved components,necessitating heat dissipation membranes(HDMs)to exhibit high thermal conductivity while maintaining structural integrity and performance stability e...The advancement of flexible electronics demands improved components,necessitating heat dissipation membranes(HDMs)to exhibit high thermal conductivity while maintaining structural integrity and performance stability even after extensive deformation.Herein,we have devised a laser-modulated reduction technique for graphene oxide(GO),enabling the fabrication of high-quality,large-scale,lowdefect graphene,which yields high-performance HDMs after orderly deposition.The work underscores the crucial role of the laser wavelength and dispersion liquid's coupling intensity in influencing the morphology and properties of graphene.Optimal coupling effect and energy conversion are realized when a laser of 1064 nm wavelength irradiates a triethylene glycol(TEG)/N,N-Dimethylformamide(DMF)dispersion.This unique synergy generates high transient energy,which facilitates the deprotonation process and ensures a swift,comprehensive GO reduction.In contrast to conventional water-based laser reduction methods,the accelerated reaction magnifies the size of the graphene sheets by mitigating the ablation effect.After membrane construction with an ordered structure,the corresponding membrane exhibits a high thermal conductivity of 1632 W m^(-1)K^(-1),requiring only~1/10 of the total preparation time required by other reported methods.Remarkably,the resulting HDM demonstrates superior resilience against creasing and folding,maintaining excellent smoothness and negligible reduction in thermal conductivity after violent rubbing.The combination of exceptional flexibility and thermal conductivity in HDMs paves the way for long-term practical use in the flexible electronics industry.展开更多
基金National Natural Science Foundation of China(grant number 31971258,32371405).
文摘The cell membranes,derived from natural sources,possesses unique physicochemical properties of phospholipid bilayers and biological functionalities of membrane proteins.This makes it an ideal biomimetic coating to enhance the in vivo circulation and retention time of micro/nanodrug carriers,provide targeted drug delivery effects,and neutralize bacterial toxins.Notably,recent studies have successfully coated various types of cell membranes onto the surfaces of macroscopic materials,such as electrospun fiber scaffolds and decellularized matrices,to promote tissue repair,modulate host responses to foreign materials,and alleviate inflammation.This review comprehensively summarizes the latest research progress in the modification of macroscopic biomaterials with cell membranes.The insights provided aim to serve as a valuable reference for the preparation of cell membrane biomimetic coatings and their applications in the field of tissue repair.
基金supported by the National Science Foundation of Jiangsu Province(BK20210861)the National Natural Science Foundation of China(62101374)the open research fund of Key Laboratory of MEMS of Ministry of Education,Southeast University。
文摘The advancement of flexible electronics demands improved components,necessitating heat dissipation membranes(HDMs)to exhibit high thermal conductivity while maintaining structural integrity and performance stability even after extensive deformation.Herein,we have devised a laser-modulated reduction technique for graphene oxide(GO),enabling the fabrication of high-quality,large-scale,lowdefect graphene,which yields high-performance HDMs after orderly deposition.The work underscores the crucial role of the laser wavelength and dispersion liquid's coupling intensity in influencing the morphology and properties of graphene.Optimal coupling effect and energy conversion are realized when a laser of 1064 nm wavelength irradiates a triethylene glycol(TEG)/N,N-Dimethylformamide(DMF)dispersion.This unique synergy generates high transient energy,which facilitates the deprotonation process and ensures a swift,comprehensive GO reduction.In contrast to conventional water-based laser reduction methods,the accelerated reaction magnifies the size of the graphene sheets by mitigating the ablation effect.After membrane construction with an ordered structure,the corresponding membrane exhibits a high thermal conductivity of 1632 W m^(-1)K^(-1),requiring only~1/10 of the total preparation time required by other reported methods.Remarkably,the resulting HDM demonstrates superior resilience against creasing and folding,maintaining excellent smoothness and negligible reduction in thermal conductivity after violent rubbing.The combination of exceptional flexibility and thermal conductivity in HDMs paves the way for long-term practical use in the flexible electronics industry.
