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Photothermal superhydrophobic copper nanowire assemblies: fabrication and deicing/defrosting applications

International Journal of Extreme Manufacturing 2023年第4期5卷 472-484页

作者： Siyan Yang Qixun Li bingang du Yushan Ying Yijun Zeng Yuankai Jin Xuezhi Qin Shouwei Gao Steven Wang Zuankai Wang Rongfu Wen Xuehu Ma State Key Laboratory of Fine Chemicals&Frontier Science Center for Smart Materials School of Chemical EngineeringDalian University of TechnologyDalian 116024People’s Republic of China Department of Mechanical Engineering City University of Hong KongHong Kong 999077People’s Republic of China Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHong Kong 999077People’s Republic of China

Ice and frost buildup continuously pose significant challenges to multiple *** a promising de-icing/defrosting alternative,designing photothermal coatings that leverage on the abundant sunlight source on the earth to facilitate ice/frost melting has attracted tremendous attention ***,previous designs suffered from either localized surface heating owing to the limited thermal conductivity or unsatisfied meltwater removal rate due to strong water/substrate ***,we developed a facile approach to fabricate surfaces that combine photothermal,heat-conducting,and superhydrophobic properties into one to achieve efficient de-icing and *** copper nanowire assemblies,such surfaces were fabricated via the simple template-assisted electrodeposition method,allowing us to tune the nanowire assembly geometry by adjusting the template dimensions and electrodeposition *** highly ordered copper nanowire assemblies facilitated efficient sunlight absorption and lateral heat spreading,resulting in a fast overall temperature rise to enable the thawing of ice and *** promoted by the excellent water repellency of the surface,the thawed ice and frost could be spontaneously and promptly *** this way,the all-in-one design enabled highly enhanced de-icing and defrosting performance compared to other nanostructured surfaces merely with superhydrophobicity,photothermal effect,or the combination of *** particular,the defrosting efficiency could approach∼100%,which was the highest compared to previous ***,our approach demonstrates a promising path toward designing highly effective artificial deicing/defrosting surfaces.

关键词： nanowire photothermal superhydrophobic de-icing defrosting

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蒸汽冷凝近壁过渡区团簇演化特性

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化工学报 2022年第7期73卷 2865-2873页

作者：李雯兰忠强伟丽任文芝杜宾港马学虎大连理工大学化学工程研究所辽宁大连116024 内蒙古北方重工业集团有限公司内蒙古包头014000

基于近壁几百微米厚度空间中纳米尺度团簇的演化特点,综合定态凝结过程的唯象特点,采用分子动力学模拟的方法,通过多个不同过饱和度下的抽样体系模拟,构建出近壁空间中的团簇演化和温度渐变的图景。分析发现,近壁空间中蒸汽温度随离壁... 详细信息

基于近壁几百微米厚度空间中纳米尺度团簇的演化特点,综合定态凝结过程的唯象特点,采用分子动力学模拟的方法,通过多个不同过饱和度下的抽样体系模拟,构建出近壁空间中的团簇演化和温度渐变的图景。分析发现,近壁空间中蒸汽温度随离壁距离的渐变曲线存在一个特征转折点,并以该点为界,近壁空间可分为靠近壁面的团簇的稠密分布区和靠近蒸汽体相的扩散发展的过渡区。随着初始蒸汽压力的降低,转折点位置向过冷壁面靠近,导致相对更薄的分子稠密区。而随着不凝气含量的增加,相应的团簇扩散发展的区域变宽,这说明不凝气存在时,要达到与纯蒸汽条件下相似厚度的分子稠密区,需要更高的过冷度,也从唯象角度解释了不凝气存在对凝结换热效率的极大影响。最后,根据近壁区团簇分布演化的这些特点,指出了强化或调控传热传质的新概念,不仅可以对壁面上的微纳功能结构进行设计,还可考虑近壁空间中的材料结构设计,从蒸汽体相空间入手来调控团簇演化。

关键词：凝结近壁团簇成核不凝性气体分子稠密区界面

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Enantio-divergent C–H borylation with two different ligands from a single chiral source

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Science China Chemistry 2025年第1期68卷 226-232页

作者： Rongrong du Senmiao Xu State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical Physics Chinese Academy of Sciences College of Material Chemistry and Chemical Engineering Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of Education Hangzhou Normal University University of Chinese Academy of Sciences

Reported here is an iridium-catalyzed enantio-divergent C（sp3）–H borylation of α-gem-dimethyl groups of trifluoromethyl ketone-derived hydrazones to construct a series of acyclic all-carbon quaternary stereocenters with a high level of chiral induction. Two different chiral bidentate boryl ligands from a common chiral source not only can switch the enantioselectivity but also are complementary in terms of the substrate scope.

关键词： asymmetric catalysis C–H borylation all-carbon quaternary stereocenters synthetic methods

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舞动的液滴:界面现象与过程调控

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化工学报 2018年第1期69卷 9-43页

作者：马学虎兰忠王凯陈彦松程雅琦杜宾港叶轩大连理工大学化学工程研究所辽宁大连116024

液滴动态行为的调控在包括微化工、相变传热、喷雾冷却、农药喷洒、微流控芯片等领域都具有广泛的应用。液滴润湿过程包含着复杂的固液界面现象,借助界面效应对液滴动态行为进行调控是液滴调控领域的热点方向。将围绕多尺度润湿、界面... 详细信息

液滴动态行为的调控在包括微化工、相变传热、喷雾冷却、农药喷洒、微流控芯片等领域都具有广泛的应用。液滴润湿过程包含着复杂的固液界面现象,借助界面效应对液滴动态行为进行调控是液滴调控领域的热点方向。将围绕多尺度润湿、界面结构驱动的液滴动态行为等过程中的若干科学问题进行综述。首先介绍了多尺度表面润湿基本理论,讨论了核化过程、液滴多尺度润湿、液滴弹跳和液滴多向迁移过程及液滴撞击固体表面过程中的固液界面作用机理,并展现了液滴动态调控在相变传热、喷墨打印、农药喷洒和微流控等工业过程的调控作用、应用以及主要发展趋势和方向。

关键词：多尺度两相流相变表面传递过程

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倾斜超疏水管外滴状冷凝液滴特性的可视化

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科学通报 2017年第10期62卷 1082-1089页

作者：马学虎罗莎杜宾港吴羽隆兰忠郝婷婷刘旭王凯大连理工大学化学工程研究所辽宁省化工资源清洁利用重点实验室大连116024

含不凝气的混合蒸汽冷凝广泛存在于化工、石油、电力和海水淡化等领域.在空气环境下超疏水表面具有较大的接触角,有可能实现冷凝强化传热的目的.但在纯蒸汽冷凝环境中,液滴会完全润湿超疏水表面的微纳结构,使表面的超疏水性"失效".而在... 详细信息

含不凝气的混合蒸汽冷凝广泛存在于化工、石油、电力和海水淡化等领域.在空气环境下超疏水表面具有较大的接触角,有可能实现冷凝强化传热的目的.但在纯蒸汽冷凝环境中,液滴会完全润湿超疏水表面的微纳结构,使表面的超疏水性"失效".而在含不凝气的混合蒸汽冷凝过程中,若不凝气充满超疏水表面的微纳结构,液滴呈Cassie或过渡态润湿模式,保持或部分保持表面的超疏水特性.对于倾斜表面,冷凝液滴的脱落直径和冲刷周期都会发生变化,进而影响冷凝传热.因此,深入认识混合蒸汽在不同倾斜角的超疏水竖管表面上的冷凝特性,分析液滴的运动特性,对探究冷凝机理和研发先进强化传热技术有重要意义.本文利用氧化刻蚀-自组装的方法制备了紫铜管超疏水表面,系统地研究了不同倾斜角度时混合蒸汽冷凝过程中液滴的接触角滞后、临界脱落直径以及冲刷周期,并与纯蒸汽、疏水表面的情况进行了对比.结果表明,在铜管顶部(沿铜管圆周方向),超疏水表面冷凝时接触角滞后小于疏水表面,而在铜管中部和底部超疏水表面的接触角滞后则较大;在超疏水表面条件下,液滴的脱落直径随着倾斜角度的增加而增大;冷凝液对超疏水表面的冲刷周期均大于疏水表面,且随着倾斜角增加,冲刷周期略有减小.

关键词：滴状冷凝超疏水表面不凝气倾斜角接触角滞后脱落直径冲刷周期

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From text to image:challenges in integrating vision into ChatGPT for medical image interpretation

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Neural Regeneration Research 2025年第2期20卷 487-488页

作者： Shunsuke Koga Wei du Department of Pathology and Laboratory Medicine Hospital of the University of PennsylvaniaPhiladelphiaPAUSA

Large language models(LLMs),such as ChatGPT developed by OpenAI,represent a significant advancement in artificial intelligence(AI),designed to understand,generate,and interpret human language by analyzing extensive text *** potential integration into clinical settings offers a promising avenue that could transform clinical diagnosis and decision-making processes in the future(Thirunavukarasu et al.,2023).This article aims to provide an in-depth analysis of LLMs’current and potential impact on clinical *** ability to generate differential diagnosis lists underscores their potential as invaluable tools in medical practice and education(Hirosawa et al.,2023;Koga et al.,2023).

关键词： image diagnosis text

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Effect of a Carbon Fibre-steel Fibre-graphite Conductive Filler on the Electrothermal Properties of Cementitious Materials

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 141-151页

作者： FAN Yanan WEI Hong ZHENG Hongyong du Hongxiu Department of Architecture and Environmental Engineering Taiyuan UniversityTaiyuan 030032China College of Civil Engineering Taiyuan University of TechnologyTaiyuan 030032China

Carbon fibre,steel fibre and graphite were used as conductive fillers to prepare cementitious materials with excellent electrothermal *** electrically conductive cementitious materials with different volume dosages were analysed through compressive and flexural strength,electrochemical impedance spectroscopy and temperature rise *** equivalent circuit model was established to study the electrically conductive heat generation mechanism in the electrically conductive cementitious *** results indicate that the mechanical properties of cementitious composite materials with a ternary conductive phase are better than those of pristine cementitious materials because the fibrous filler improves their mechanical ***,the incorporation of graphite in the material reduces its *** fibrous and point-like conductive phase materials into the cementitious material enhances the overall conductive pathway and considerably reduces the electrical resistance of the cementitious material,enhancing its conductive *** volume ratios of carbon fibre,steel fibre and graphite that achieve an optimal complex doping in the cementitious material were 0.35%,0.6%and 6%,*** was determined using the mutation point of each circuit element parameter as the percolation *** addition,at a certain safety voltage,there is a uniform change between the internal and surface temperatures of the conductive cementitious material,and the heating effect in this materialis is considerably better than that in the pristine cementitious material.

关键词： cementitious composites conductive fillers electrothermal properties electrochemical impedance spectroscopy

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Pyroptosis,ferroptosis,and autophagy in spinal cord injury:regulatory mechanisms and therapeutic targets

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Neural Regeneration Research 2025年第10期20卷 2787-2806页

作者： Qingcong Zheng du Wang Rongjie Lin Weihong Xu Department of Spinal Surgery the First Affiliated Hospital of Fujian Medical UniversityFuzhouFujian ProvinceChina Arthritis Clinical and Research Center Peking University People’s HospitalBeijingChina Department of Orthopedic Surgery Fujian Medical University Union HospitalFuzhouFujian ProvinceChina

Regulated cell death is a form of cell death that is actively controlled by *** studies have shown that regulated cell death plays a key role after spinal cord *** and ferroptosis are newly discovered types of regulated cell deaths that have been shown to exacerbate inflammation and lead to cell death in damaged spinal ***,a complex form of cell death that is interconnected with various regulated cell death mechanisms,has garnered significant attention in the study of spinal cord *** injury triggers not only cell death but also cellular survival *** signaling pathways play pivotal roles in influencing the processes of both deterioration and repair in spinal cord injury by regulating pyroptosis,ferroptosis,and ***,this review aims to comprehensively examine the mechanisms underlying regulated cell deaths,the signaling pathways that modulate these mechanisms,and the potential therapeutic targets for spinal cord *** analysis suggests that targeting the common regulatory signaling pathways of different regulated cell deaths could be a promising strategy to promote cell survival and enhance the repair of spinal cord ***,a holistic approach that incorporates multiple regulated cell deaths and their regulatory pathways presents a promising multi-target therapeutic strategy for the management of spinal cord injury.

关键词： autophagy cell death ferroptosis inflammation pathological mechanisms pyroptosis regulated cell death regulatory pathways spinal cord injury therapeutic targets

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The autophagy-lysosome pathway:a potential target in the chemical and gene therapeutic strategies for Parkinson’s disease

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Neural Regeneration Research 2025年第1期20卷 139-158页

作者： Fengjuan Jiao Lingyan Meng Kang du Xuezhi Li School of Mental Health Jining Medical UniversityJiningShandong ProvinceChina Shandong Collaborative Innovation Center for Diagnosis Treatment and Behavioral Interventions of Mental DisordersInstitute of Mental HealthJining Medical UniversityJiningShandong ProvinceChina

Parkinson’s disease is a common neurodegenerative disease with movement disorders associated with the intracytoplasmic deposition of aggregate proteins such asα-synuclein in *** one of the major intracellular degradation pathways,the autophagy-lysosome pathway plays an important role in eliminating these *** evidence has shown that upregulation of the autophagy-lysosome pathway may contribute to the clearance ofα-synuclein aggregates and protect against degeneration of dopaminergic neurons in Parkinson’s ***,multiple genes associated with the pathogenesis of Parkinson’s disease are intimately linked to alterations in the autophagy-lysosome ***,this pathway appears to be a promising therapeutic target for treatment of Parkinson’s *** this review,we briefly introduce the machinery of ***,we provide a description of the effects of Parkinson’s disease–related genes on the autophagy-lysosome ***,we highlight the potential chemical and genetic therapeutic strategies targeting the autophagy–lysosome pathway and their applications in Parkinson’s disease.

关键词： autophagy chemical therapy gene therapy Parkinson’s disease α-synuclein

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蒸气冷凝传热强化研究进展

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清华大学学报（自然科学版） 2021年第12期61卷 1353-1370页

作者：温荣福杜宾港杨思艳刘渊博李启迅程雅琦兰忠马学虎大连理工大学化工学院辽宁省化工资源清洁利用重点实验室大连116024

蒸气冷凝传热强化对于实现能源系统的高效化与集成化具有重要的科学意义,在众多工业过程中有广泛的应用,如电力能源、石油化工、电子工业、建筑节能、食品加工、海水淡化等领域。其中,利用界面结构调控凝液的形成、输运与移除是强化冷... 详细信息

蒸气冷凝传热强化对于实现能源系统的高效化与集成化具有重要的科学意义,在众多工业过程中有广泛的应用,如电力能源、石油化工、电子工业、建筑节能、食品加工、海水淡化等领域。其中,利用界面结构调控凝液的形成、输运与移除是强化冷凝传热的重要手段和关键科学问题。近年来,随着微纳加工技术和新材料的快速发展,研究者开发了大量的功能结构表面,并发现了许多新的界面传递现象,从新视角拓展了蒸气冷凝传热机理和强化技术。该文从蒸气冷凝中气-液-固界面间热量传递的基本过程出发,首先介绍了冷凝传热的关键控制因素和强化原理,然后总结了近年来在界面调控方面强化冷凝传热的新策略和典型的代表性工作,最后讨论了强化传热表面在工业应用中面临的挑战和未来的发展方向。

关键词：蒸气冷凝强化传热界面润湿微纳结构液滴和液膜系统优化

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