Cu2-x S nanocrystals(NCs), characterized by low cost, low toxicity, high stability and high photothermal conversion efficiency, provide promising platforms as photothermal agents. Herein, a novel twostep synthesis has...Cu2-x S nanocrystals(NCs), characterized by low cost, low toxicity, high stability and high photothermal conversion efficiency, provide promising platforms as photothermal agents. Herein, a novel twostep synthesis has been developed for Cu7S4 nanocrystals with hollow structure using the as-prepared copper nanoparticles as starting a solid precursor followed by hot-injection of sulfide source.The Cu7S4 NCs exhibit intense absorption band at Near-infrared(NIR) wavelengths due to localized surface plasmon resonance(LSPR)mode, which can effectively convert 980 nm-laser energy into heat.Moreover, the localized high temperature created by Cu7S4 NCs under NIR irradiation could result in efficient photothermal ablation(PTA) of cancer cells in vivo, demonstrating a novel and promising photothermal nanomaterials.展开更多
Global efforts to transform power systems are accelerating,yet the localized patterns and trajectories of this transition-crucial for equitable and regionally tailored policy-making-remain insufficiently explored.This...Global efforts to transform power systems are accelerating,yet the localized patterns and trajectories of this transition-crucial for equitable and regionally tailored policy-making-remain insufficiently explored.This study introduces a comprehensive subnational dataset of global power plants,encompassing nine energy types and spanning the years 2015 to 2020.Through spatial statistics,clustering,and cross-regional comparisons,we identify distinct trajectories of power capacity change across energy types and regions.While decarbonization remains a clear global trend,structurally disadvantaged or over-averaged regions are still at risk of being overlooked.To better understand these transition dynamics,we conducted a machine learning-based driver analysis,which highlights the dominant influence of development-related factors such as electricity demand and economic growth.The openly accessible dataset fills a critical gap in global energy data and offers a standardized,robust framework for analyzing regional power infrastructure development.Its design enables fine-grained,dynamic assessments of transition pathways and facilitates interdisciplinary research across energy,climate,and policy domains.展开更多
Adhesive hydrogels are an emerging class of hydrogels that combine three-dimensional hydrated networks with adhesive properties.These properties facilitate intimate tissue-material contact in diverse biomedical applic...Adhesive hydrogels are an emerging class of hydrogels that combine three-dimensional hydrated networks with adhesive properties.These properties facilitate intimate tissue-material contact in diverse biomedical applications,enhancing tissue joining,drug transport,and signal transmission.Inspired by the universal adhesiveness of mussel foot proteins,3,4-dihydroxyphenyl-L-alanine (DOPA) and its analogs have been extensively exploited for the fabrication of adhesive hydrogels,within which the DOPA moieties can not only serve as cross-linking mediators but also participate in various intermolecular and surface interactions to mediate wet adhesion.This mini-review highlights recent achievements in the development of mussel-inspired adhesive hydrogels,focusing on: (1) elucidating DOPA-mediated adhesion mechanisms through nanomechanical characterizations,(2) designing injectable adhesive hydrogels toward applications in drug delivery,hemostasis,and wound closure,which includes in situ gelling liquids and shear-thinning preformed hydrogels,and (3) fabricating tough adhesive hydrogels with enhanced mechanical properties for use in tissue regeneration,biosensing,and bioimaging,with typical examples of nanocomposite and double-network hydrogels.The challenges and prospects in this rapidly developing field are also discussed.展开更多
基金financially supported by the National Natural Science Foundation of China (Grant Nos.21171035 and 51302035)the Key Grant Project of Chinese Ministry of Education (Grant No.313015)+7 种基金the PhD Programs Foundation of the Ministry of Education of China (Grant Nos.20110075110008 and 20130075120001)the National 863 Program of China (Grant No.2013AA031903)the Science and Technology Commission of Shanghai Municipality (Grant No.13ZR1451200)the Fundamental Research Funds for the Central Universitiesthe Hong Kong Scholars Programthe Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT1221)the Shanghai Leading Academic Discipline Project (Grant No. B603)the Program of Introducing Talents of Discipline to Universities (No. 111-2-04)
文摘Cu2-x S nanocrystals(NCs), characterized by low cost, low toxicity, high stability and high photothermal conversion efficiency, provide promising platforms as photothermal agents. Herein, a novel twostep synthesis has been developed for Cu7S4 nanocrystals with hollow structure using the as-prepared copper nanoparticles as starting a solid precursor followed by hot-injection of sulfide source.The Cu7S4 NCs exhibit intense absorption band at Near-infrared(NIR) wavelengths due to localized surface plasmon resonance(LSPR)mode, which can effectively convert 980 nm-laser energy into heat.Moreover, the localized high temperature created by Cu7S4 NCs under NIR irradiation could result in efficient photothermal ablation(PTA) of cancer cells in vivo, demonstrating a novel and promising photothermal nanomaterials.
基金supported by the Natural Science Foundation of China(71904125)the Shanghai Rising-Star Program(23QA1404900)+1 种基金the Natural Science Foundation of Shanghai(23ZR1434100)the Science and Technology Cooperation Program of Shanghai Jiao Tong in Inner Mongolia Autonomous Region——Action Plan of Shanghai Jiao Tong University for“Revitalizing Inner Mongolia through Science and Technology”(2025XYJG0001-01-08).
文摘Global efforts to transform power systems are accelerating,yet the localized patterns and trajectories of this transition-crucial for equitable and regionally tailored policy-making-remain insufficiently explored.This study introduces a comprehensive subnational dataset of global power plants,encompassing nine energy types and spanning the years 2015 to 2020.Through spatial statistics,clustering,and cross-regional comparisons,we identify distinct trajectories of power capacity change across energy types and regions.While decarbonization remains a clear global trend,structurally disadvantaged or over-averaged regions are still at risk of being overlooked.To better understand these transition dynamics,we conducted a machine learning-based driver analysis,which highlights the dominant influence of development-related factors such as electricity demand and economic growth.The openly accessible dataset fills a critical gap in global energy data and offers a standardized,robust framework for analyzing regional power infrastructure development.Its design enables fine-grained,dynamic assessments of transition pathways and facilitates interdisciplinary research across energy,climate,and policy domains.
基金supported by the Natural Sciences and Engineering Research Council of Canada(NSERC),the Canada Foundation for Innovation(CFII),and the Canada Research Chairs Program(H.Zeng).
文摘Adhesive hydrogels are an emerging class of hydrogels that combine three-dimensional hydrated networks with adhesive properties.These properties facilitate intimate tissue-material contact in diverse biomedical applications,enhancing tissue joining,drug transport,and signal transmission.Inspired by the universal adhesiveness of mussel foot proteins,3,4-dihydroxyphenyl-L-alanine (DOPA) and its analogs have been extensively exploited for the fabrication of adhesive hydrogels,within which the DOPA moieties can not only serve as cross-linking mediators but also participate in various intermolecular and surface interactions to mediate wet adhesion.This mini-review highlights recent achievements in the development of mussel-inspired adhesive hydrogels,focusing on: (1) elucidating DOPA-mediated adhesion mechanisms through nanomechanical characterizations,(2) designing injectable adhesive hydrogels toward applications in drug delivery,hemostasis,and wound closure,which includes in situ gelling liquids and shear-thinning preformed hydrogels,and (3) fabricating tough adhesive hydrogels with enhanced mechanical properties for use in tissue regeneration,biosensing,and bioimaging,with typical examples of nanocomposite and double-network hydrogels.The challenges and prospects in this rapidly developing field are also discussed.
