Developing bioactive biomaterials with highly controlled functions is crucial to enhancing their applications in regenerative medicine.Citrate-based polymers are the few bioactive polymer biomaterials used in biomedic...Developing bioactive biomaterials with highly controlled functions is crucial to enhancing their applications in regenerative medicine.Citrate-based polymers are the few bioactive polymer biomaterials used in biomedicine because of their facile synthesis,controllable structure,biocompatibility,biomimetic viscoelastic mechanical behavior,and functional groups available for modification.In recent years,various multifunctional designs and biomedical applications,including cardiovascular,orthopedic,muscle tissue,skin tissue,nerve and spinal cord,bioimaging,and drug or gene delivery based on citrate-based polymers,have been extensively studied,and many of them have good clinical application potential.In this review,we summarize recent progress in the multifunctional design and biomedical applications of citrate-based polymers.We also discuss the further development of multifunctional citrate-based polymers with tailored properties to meet the requirements of various biomedical applications.展开更多
Lithium-ion batteries(LIBs)have been used to power various electric devices and store energy,but their toxic components by using inorganic materials generally cause serious environmental issues when disused.Recently,e...Lithium-ion batteries(LIBs)have been used to power various electric devices and store energy,but their toxic components by using inorganic materials generally cause serious environmental issues when disused.Recently,environmentally friendly and naturally abundant organic compounds have been adopted as promising electrode materials for next-generation LIBs.Herein,a new organic anode electrode based on sodium citrate is proposed,which shows gradually activated electrochemical behavior and delivers a high reversible capacity of 776.8 mAh·g^(-1)after 1770 cycles at a current density of 2 A·g^(-1).With the aid of the electrochemical characterization,Fourier-transform infrared(FTIR)and X-ray photoelectron spectroscopy(XPS)analysis,the lithium uptake mechanism of sodium citrate-based anodes is identified to be a combination of three-electron lithiation/delithiation and fast Li+intercalation/deintercalation processes,in which Faradaic reactions could offer a theoretical contribution of312 mAh·g^(-1)and intercalation pseudocapacitance would provide extra capacity.This work demonstrates the great potential for developing high-capacity organic electrodes for LIBs in future.展开更多
基金supported by the National Natural Science Foundation of China(grant No.52172288)Special Support Program for High Level Talents of Shaanxi Province of China(grant No.TZ0278)+4 种基金the key R&D plan of Shaanxi Province of China(grant No.2021GXLH-Z-052)State Key Laboratory for Manufacturing Systems Engineering of China(grant No.sklms2021006)Young Talent Support Plan of Xi’an Jiaotong University of China(grant No.QY6J003)the Fundamental Research Funds for the Central Universities(grant No.xzy012021075)China Postdoctoral Science Foundation(grant No.2021M702644).
文摘Developing bioactive biomaterials with highly controlled functions is crucial to enhancing their applications in regenerative medicine.Citrate-based polymers are the few bioactive polymer biomaterials used in biomedicine because of their facile synthesis,controllable structure,biocompatibility,biomimetic viscoelastic mechanical behavior,and functional groups available for modification.In recent years,various multifunctional designs and biomedical applications,including cardiovascular,orthopedic,muscle tissue,skin tissue,nerve and spinal cord,bioimaging,and drug or gene delivery based on citrate-based polymers,have been extensively studied,and many of them have good clinical application potential.In this review,we summarize recent progress in the multifunctional design and biomedical applications of citrate-based polymers.We also discuss the further development of multifunctional citrate-based polymers with tailored properties to meet the requirements of various biomedical applications.
基金financially supported by the National Natural Science Foundation of China(Nos.21875155,51675275 and 21473119)the Scientific and Technological Research Program of Chongqing Municipal Education Commission(No.KJQN201900527)the support from the Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province,Suzhou,China。
文摘Lithium-ion batteries(LIBs)have been used to power various electric devices and store energy,but their toxic components by using inorganic materials generally cause serious environmental issues when disused.Recently,environmentally friendly and naturally abundant organic compounds have been adopted as promising electrode materials for next-generation LIBs.Herein,a new organic anode electrode based on sodium citrate is proposed,which shows gradually activated electrochemical behavior and delivers a high reversible capacity of 776.8 mAh·g^(-1)after 1770 cycles at a current density of 2 A·g^(-1).With the aid of the electrochemical characterization,Fourier-transform infrared(FTIR)and X-ray photoelectron spectroscopy(XPS)analysis,the lithium uptake mechanism of sodium citrate-based anodes is identified to be a combination of three-electron lithiation/delithiation and fast Li+intercalation/deintercalation processes,in which Faradaic reactions could offer a theoretical contribution of312 mAh·g^(-1)and intercalation pseudocapacitance would provide extra capacity.This work demonstrates the great potential for developing high-capacity organic electrodes for LIBs in future.
