Both thermochromic and photochromic coating have attracted many attentions due to their widely applications,but the low stability is a big obstacle.Inspired by the lotus leaf,to endow the chromic coating with superhyd...Both thermochromic and photochromic coating have attracted many attentions due to their widely applications,but the low stability is a big obstacle.Inspired by the lotus leaf,to endow the chromic coating with superhydrophobicity is a possible solution.In this research,a dual response coating was prepared by adding photochromic and thermochromic particles simultaneously.The prepared sample demonstrated at least four-state color switching,which can be successfully used in tactile imaging,multi-color fabric,erasable record,and security labels.The superhydrophobicity was achieved by introducing vinyl-terminated polydimethylsiloxane,which not only offers low surface energy but also can cross-link with the particles to increase the adhesion.Thus,the prepared sample maintained superhydrophobicity after various kinds of destruction(such as sandpaper abrasion,corrosive liquid attack,ultrasonic treatment,UV irradiation,and high-speed drops/turbulent jets impact).Even though the superhydrophobicity can be destroyed by plasma etching,it can be recovered after 12 h at room temperature.展开更多
It has been proved that the construction of interconnected armour on superhydrophobic surface could significantly enhance the mechanical robustness.Here,a new kind of armour with frame/protrusion hybrid structure was ...It has been proved that the construction of interconnected armour on superhydrophobic surface could significantly enhance the mechanical robustness.Here,a new kind of armour with frame/protrusion hybrid structure was achieved by nanosecond laser technology.Then,this armoured superhydrophobic surface demonstrated excellent durability,which could withstand linear abrasion(~3 N press)800 cycles,water jet test(1.0 MPa pressure)40 times and 100℃treatment 18 days.Particularly,the armoured superhydrophobic sample shows outstanding anti-icing ability,which can speed up the supercooled water dropping(no adhesion within 2 h),increase the freezing delay time by~3 times and maintain low adhesion force(less than 35 kPa)after 30 icing/de-icing cycles.Further finite element analysis and theoretical modeling proved that the developed frame/protuberance hybrid structure could effectively enhance the durability.The relatively low surface accuracy in this study can significantly reduce processing cost,which provides a bright future for the practical application of armour superhydrophobic materials.展开更多
Cardiovascular diseases(CVD)stand as the foremost cause of global mortality,significantly affecting healthcare systems.The use of mediated/implantable medical devices is considered to be an effective treatment for CVD...Cardiovascular diseases(CVD)stand as the foremost cause of global mortality,significantly affecting healthcare systems.The use of mediated/implantable medical devices is considered to be an effective treatment for CVD.However,due to the interaction of these materials with the biological environment,they often lead to complications such as thrombosis,inflammation and endothelial dysfunction which have a negative impact on clinical outcomes.This review explores the underlying mechanisms contributing to these adverse reactions and emphasizes surface modification strategies aimed at enhancing the biocompatibility of blood-contacting materials.By categorizing coating techniques into bio-inert and bioactive approaches,we delineate current research advancements and their effectiveness in improving device performance.Furthermore,we also conduct an in-depth exploration of the potential of bionic coatings,inspired by natural cellular environments,to mimic the physiological properties of endothelial.The approach not only improve hemocompatibility,but also for promoting rapid endothelial cell generation and alleviating complications associated with long-term implants.In conclusion,this review highlights the necessity for sustained research and development of surface modification technologies,with the goal of advancing safer and more effective cardiovascular devices that improve patient outcomes and quality of life.展开更多
基金supported by the National Nature Science Foundation of China(51977079,51607067)the Central Guid-ance on Local Science and Technology Development Fund of Hebei Province(226Z1204G)+2 种基金the Top Young Innovative Talents of Colleges and universities of Higher Learning Institutions of Hebei(BJ2021095)Youth Elite Scientists Sponsorship Program by the Chinese Society for Electrical Engineering(CSEE-YESS-2017002)the Funda-mental Research Funds for the Central Universities(2020MS115,2017MS149).
文摘Both thermochromic and photochromic coating have attracted many attentions due to their widely applications,but the low stability is a big obstacle.Inspired by the lotus leaf,to endow the chromic coating with superhydrophobicity is a possible solution.In this research,a dual response coating was prepared by adding photochromic and thermochromic particles simultaneously.The prepared sample demonstrated at least four-state color switching,which can be successfully used in tactile imaging,multi-color fabric,erasable record,and security labels.The superhydrophobicity was achieved by introducing vinyl-terminated polydimethylsiloxane,which not only offers low surface energy but also can cross-link with the particles to increase the adhesion.Thus,the prepared sample maintained superhydrophobicity after various kinds of destruction(such as sandpaper abrasion,corrosive liquid attack,ultrasonic treatment,UV irradiation,and high-speed drops/turbulent jets impact).Even though the superhydrophobicity can be destroyed by plasma etching,it can be recovered after 12 h at room temperature.
基金supported by Beijing Nature Science Foundation(3232054)National Nature Science Foundation of China(51977079)+4 种基金Key Laboratory of Icing and Anti/De-icing of CARDC(Grant No.IADL 20210401)the Central Guidance on Local Science and Technology Development Fund of Hebei Province(226Z1204G)the Top Young Innovative Talents of Colleges and Universities of Higher Learning Institutions of Hebei(BJ2021095)Youth Elite Scientists Sponsorship Program by Chinese Society for Electrical Engineering(CSEE-YESS-2017002)the Fundamental Research Funds for the Central Universities(2020MS115).
文摘It has been proved that the construction of interconnected armour on superhydrophobic surface could significantly enhance the mechanical robustness.Here,a new kind of armour with frame/protrusion hybrid structure was achieved by nanosecond laser technology.Then,this armoured superhydrophobic surface demonstrated excellent durability,which could withstand linear abrasion(~3 N press)800 cycles,water jet test(1.0 MPa pressure)40 times and 100℃treatment 18 days.Particularly,the armoured superhydrophobic sample shows outstanding anti-icing ability,which can speed up the supercooled water dropping(no adhesion within 2 h),increase the freezing delay time by~3 times and maintain low adhesion force(less than 35 kPa)after 30 icing/de-icing cycles.Further finite element analysis and theoretical modeling proved that the developed frame/protuberance hybrid structure could effectively enhance the durability.The relatively low surface accuracy in this study can significantly reduce processing cost,which provides a bright future for the practical application of armour superhydrophobic materials.
基金supported by the Science/Technology Project of Sichuan Province(2024NSFSC1009)the grant from the Frontiers Medical Center,Tianfu Jincheng Laboratory(No.TFJC2024020008).
文摘Cardiovascular diseases(CVD)stand as the foremost cause of global mortality,significantly affecting healthcare systems.The use of mediated/implantable medical devices is considered to be an effective treatment for CVD.However,due to the interaction of these materials with the biological environment,they often lead to complications such as thrombosis,inflammation and endothelial dysfunction which have a negative impact on clinical outcomes.This review explores the underlying mechanisms contributing to these adverse reactions and emphasizes surface modification strategies aimed at enhancing the biocompatibility of blood-contacting materials.By categorizing coating techniques into bio-inert and bioactive approaches,we delineate current research advancements and their effectiveness in improving device performance.Furthermore,we also conduct an in-depth exploration of the potential of bionic coatings,inspired by natural cellular environments,to mimic the physiological properties of endothelial.The approach not only improve hemocompatibility,but also for promoting rapid endothelial cell generation and alleviating complications associated with long-term implants.In conclusion,this review highlights the necessity for sustained research and development of surface modification technologies,with the goal of advancing safer and more effective cardiovascular devices that improve patient outcomes and quality of life.
