Persistent luminescence is a unique optical phenomenon that continues to emit light for minutes or even hours after the excitation stops,which can significantly enhance the sensitivity and signal-to-noise ratio of ima...Persistent luminescence is a unique optical phenomenon that continues to emit light for minutes or even hours after the excitation stops,which can significantly enhance the sensitivity and signal-to-noise ratio of imaging[1].Among numerous persistent luminescence materials,lanthanide-doped fluoride nanoparticles have shown tunable persistent luminescence across the UV-vis-NIR spectrum(200-1700 nm)under X-ray excitation and adjustable size,promising significant applications in deep-tissue imaging[2,3],security encryption,and data storage[4].In particular,those exhibiting NIR-II luminescence(1000-1700 nm)provide key advantages such as deeper tissue penetration,higher contrast,and minimal interference from biological autofluorescence.However,challenges such as low brightness and rapid signal decay,especially in the NIR-II region,limit their effectiveness in long-term monitoring,including tumor theranostics[5].Traditional approaches like size control and surface passivation yield only marginal improvements,underscoring the need for next-generation nanoparticles with superior NIR-II brightness.展开更多
Being the major players in promoting innovation,enterprises are therefore central to innovation–based development.Establishing how vibrant they are in terms of innovation has become a heavily debated issue in both ac...Being the major players in promoting innovation,enterprises are therefore central to innovation–based development.Establishing how vibrant they are in terms of innovation has become a heavily debated issue in both academic and industry circles.Through a sample involving Chinese listed companies in advanced material manufacturing,this study utilizes exploratory factor analysis to develop an evaluation system of enterprises’innovation vitality on the basis of three dimensions:innovation persistence,volatility,and growth.The study establishes deeper interaction between innovation vitality and two major indicators-persistence and volatility formats input and cooperation,while also promoting the growth of innovative input and output.This study adds insights related to the objective assessment of enterprises’innovation vitality and the promotion of subsequent innovation efforts.展开更多
基金supported by the Major Research Plan of the National Natural Science Foundation of China(No.92361202)National Natural Science Foundation of China(No.12204481).
文摘Persistent luminescence is a unique optical phenomenon that continues to emit light for minutes or even hours after the excitation stops,which can significantly enhance the sensitivity and signal-to-noise ratio of imaging[1].Among numerous persistent luminescence materials,lanthanide-doped fluoride nanoparticles have shown tunable persistent luminescence across the UV-vis-NIR spectrum(200-1700 nm)under X-ray excitation and adjustable size,promising significant applications in deep-tissue imaging[2,3],security encryption,and data storage[4].In particular,those exhibiting NIR-II luminescence(1000-1700 nm)provide key advantages such as deeper tissue penetration,higher contrast,and minimal interference from biological autofluorescence.However,challenges such as low brightness and rapid signal decay,especially in the NIR-II region,limit their effectiveness in long-term monitoring,including tumor theranostics[5].Traditional approaches like size control and surface passivation yield only marginal improvements,underscoring the need for next-generation nanoparticles with superior NIR-II brightness.
基金supported by the National Social Science Foundation of China(Grant No.20&ZD074)the National Natural Science Foundation of China(Grant No.72204037)+2 种基金Dalian High-Level Talent Innovation Program(Youth Science and Technology Star)(Project No.2022RQ055)the China Postdoctoral Science Foundation(Grant No.2024M750330)Humanities and Social Science Fundation of Ministry of Eduction,China(Project No.22YJC870009).
文摘Being the major players in promoting innovation,enterprises are therefore central to innovation–based development.Establishing how vibrant they are in terms of innovation has become a heavily debated issue in both academic and industry circles.Through a sample involving Chinese listed companies in advanced material manufacturing,this study utilizes exploratory factor analysis to develop an evaluation system of enterprises’innovation vitality on the basis of three dimensions:innovation persistence,volatility,and growth.The study establishes deeper interaction between innovation vitality and two major indicators-persistence and volatility formats input and cooperation,while also promoting the growth of innovative input and output.This study adds insights related to the objective assessment of enterprises’innovation vitality and the promotion of subsequent innovation efforts.
