检索结果-南通市图书馆

Aza-BODIPY dye with unexpected bromination and high singlet oxygen quantum yield for photoacoustic imaging-guided synergetic photodynamic/photothermal therapy

引用

Chinese Chemical Letters 2024年第6期35卷 445-450页

作者： Leichen Wang Anqing Mei Na Li Xiaohong Ruan Xu Sun Yu Cai Jinjun Shao Xiaochen Dong Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Nanjing Tech University(NanjingTech)Nanjing 211800China School of Chemistry&Materials Science Jiangsu Normal UniversityXuzhou 221116China Center for Rehabilitation Medicine Rehabilitation&Sports Medicine Research Institute of Zhejiang ProvinceDepartment of Rehabilitation MedicineZhejiang Provincial People’s Hospital(Affiliated People’s HospitalHangzhou Medical College)Hangzhou 310014China

Introducing heavy halogen atoms into organic small molecules is a practical strategy for efficient singlet oxygen(^(1)O_(2))***,bromine or iodine atoms are introduced on the aza-borondipyrromethene(aza-BODIPY)core,rather than on the periphery aryl rings for efficient~1O_(2) ***,an aza-BODIPY dye NBDPBr with unexpected bromination on the periphery aryl rings was synthesized for photoacoustic(PA)imaging-guided synergistic photothermal therapy(PTT)and photodynamic therapy(PDT)in tumor *** to unexcepted bromination at the periphery aryl rings,NBDPBr demonstrated an outstanding singlet oxygen quantum yield(Φ_(Δ))of 66% which was superior to similar brominated photosensitizers previously *** encapsulation with amphiphilic polymer F-127,hydrophilic NBDPBr nanoparticles(NPs)were fabricated and exhibited an excellent photothermal conversion efficiency(η)of 43.0% under 660 nm *** vivo PA imaging results demonstrated that NBDPBr NPs could specifically accumulate at tumor sites and realized the maximum tumor retention at 7 h *** the in vitro and in vivo results indicated the significant potence of NBDPBr with unexpected bis-bromination for PA imaging-guided synergetic PDT/PTT.

关键词： Unexpected bromination Aza-BODIPY Photodynamic therapy Photothermal therapy Synergetic therapy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The Weighted Basis for PHT-Splines

引用

工程与科学中的计算机建模(英文) 2024年第1期138卷 739-760页

作者： Zhiguo Yong Hongmei Kang Falai Chen School of Mathematical Sciences Soochow UniversitySuzhou215006China School of Mathematical Sciences University of Science and Technology of ChinaHefei230026China

PHT-splines are defined as polynomial splines over hierarchical T-meshes with very efficient local refinement *** original PHT-spline basis functions constructed by the truncation mechanism have a decay phenomenon,resulting in numerical *** non-decay basis functions are constructed as the B-splines that are defined on the 2×2 tensor product meshes associated with basis vertices in Kang et al.,but at the cost of losing the partition of *** the field of finite element analysis and topology optimization,forming the partition of unity is the default ingredient for constructing basis functions of approximate *** this paper,we will show that the non-decay PHT-spline basis functions proposed by Kang et *** be appropriately modified to form a partition of *** non-decay basis function is multiplied by a positive weight to form the weighted *** weights are solved such that the sum of weighted bases is equal to 1 on the *** provide two methods for calculatingweights,based on geometric information of basis functions and the subdivision of *** are given in the form of explicit formulas and can be efficiently *** also prove that the weights on the admissible hierarchical T-meshes are positive.

关键词： PHT-splines partition of unity weighted bases PHT-splines subdivision

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asymmetric orbital hybridization in Zn-doped antiperovskite Cu_(1-x)Zn_(x)NMn_(3)enables highly efficient electrocatalytic hydrogen production

引用

Journal of Energy Chemistry 2024年第2期89卷 304-312,I0008页

作者： Yuxiang Yan Yuxin Cao Zhichao Wang Ka Wang Hengdong Ren Shaoqi Zhang Yi Wang Jian Chen Yong Zhou Lizhe Liu Jun Dai Xinglong Wu National Laboratory of Solid States Microstructures and School of Physics Nanjing UniversityNanjing 210093JiangsuChina College of Engineering and Applied Sciences Nanjing UniversityNanjing 210093JiangsuChina National Laboratory of Solid States Microstructures and Research Institute of Superconductor Electronics Nanjing UniversityNanjing 210093JiangsuChina School of Mathematics&Physics Jiangsu University Science&TechnologyZhenjiang 212003JiangsuChina

Rational design of efficient and robust earth-abundant alkaline hydrogen evolution reaction(HER)catalysts is a key factor for developing energy conversion ***,antiperovskite nitride CuNMn_(3)has garnered significant interest due to its remarkable properties such as negative/zero thermal expansion and magnetocaloric ***,when utilized as hydrogen evolution catalysts,it encounters large challenge resulting from excessively strong/weak interactions with adsorbed H on Mn/Cu active sites,which leads to low HER *** this study,we introduce an asymmetric orbital hybridization strategy in Zn-doped Cu_(1-x)Zn_(x)NMn_(3)by leveraging the localization of Zn electronic states to reconfigure the electronic structures of Cu and Mn,thereby reducing the energy barrier for water dissociation and optimizing Cu and Mn active sites for hydrogen adsorption and H_(2)*** evaluations reveal that Cu_(0.85)Zn_(0.15)NMn_(3)with x=0.15 demonstrates exceptional electrocatalytic activity in alkaline electrolytes.A low overpotential of 52 mV at 10 mA cm^(-2)and outstanding stability over a 150-h test period are achieved,surpassing commercial Pt/*** research offers a novel strategy for enhancing HER performance by modulating asymmetric hybridization of electron orbitals between multiple metal atoms within a material structure.

关键词： Cu_(1-x)ZnxNMn_(3) Asymmetric orbital hybridization Hydrogen adsorption Hydrogen production

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

非扭转双层石墨烯中异质应变诱导的平带

引用

Acta Mechanica Sinica 2024年第1期40卷 296-304页

作者：杭阳张助华 State Key Laboratory of Mechanics and Control for Aerospace Structures Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Educationand Institute for Frontier ScienceNanjing University of Aeronautics and AstronauticsNanjing 210016China

双层石墨烯中扭转诱导的晶格失配会导致摩尔纹图案并产生具有强关联效应的平带,但这需要复杂的过程来精确控制扭转角度,这里,通过分别沿两个不同的扶手椅方向单轴拉伸上下层石墨烯,我们提出了一种不同的方法来生成双层石墨烯中的六边形... 详细信息

双层石墨烯中扭转诱导的晶格失配会导致摩尔纹图案并产生具有强关联效应的平带,但这需要复杂的过程来精确控制扭转角度,这里,通过分别沿两个不同的扶手椅方向单轴拉伸上下层石墨烯,我们提出了一种不同的方法来生成双层石墨烯中的六边形摩尔纹.两个石墨烯层之间的变形导致了等效于扭角石墨烯中的错位角,异质应变诱导的摩尔纹在费米能级附近产生平带,表现出和扭角双层石墨烯等效的电子性质.我们证明2.1%异质应变下的电子平带等价于1.05°第一魔角下的能带.然而,由于单轴应变,狄拉克点相对于K点轻微偏移,将平带分成两个相隔18meV的分别位于费米能级上方和下方的范霍夫奇点峰.我们的研究结果提出了一种控制自然双层石墨烯电子强关联性的可能方法.

关键词：电子强关联双层石墨烯费米能级摩尔纹扭转角度狄拉克点单轴拉伸单轴应变

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

In situ photocatalytically enhanced thermogalvanic cells for electricity and hydrogen production

引用

Chinese Journal of Structural Chemistry 2024年第1期43卷 1-2页

作者： Tianhao Li Wenguang Tu Zhigang Zou School of Science and Engineering The Chinese University of Hong KongShenzhenGuangdong518172PR China

Converting low-grade thermal energy into electricity through ther-mogalvanic cells offers a promising approach to addressing environ-mental challenges[1].However,thermogalvanic cells face obstacles,due to limited thermopower,connected to differences in solvent-dependent entropy(ΔS)among redox anions and varying concentration ratios(ΔC)between hot and cold sides[2,3].A typical strategy to enhance the thermopower involves the improvement ofΔS of the redox ***-fortunately,ΔC tends to approach zero spontaneously due to the ther-modynamic instability and redox ion ***,the challenge is to maintain significantΔC for both redox ions and unravel the intricate modulation mechanisms[4].

关键词： redox maintain entropy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Mechanism of water-evaporation-induced electricity beyond streaming potential

引用

Nano Research Energy 2024年第2期3卷 12-19页

作者： Sunmiao Fang Huan Lu Weicun Chu Wanlin Guo State Key Laboratory of Mechanics and Control of Mechanical Structures Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of EducationNanjing University of Aeronautics and AstronauticsNanjing 210016China College of Aerospace Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China Institute for Frontier Science Nanjing University of Aeronautics and AstronauticsNanjing 210016China

Since its first discovery in 2017,evaporation-induced electricity has attracted extensive attention and shown significant advantages in green energy *** the streaming potential-related electrokinetic effect has been intensively explored and widely recognized as the underlying mechanism,the role of coupling between water molecules and charge carriers in the material remains *** we show through carefully designed experiments that the streaming potential effect indeed plays a role but can only contribute about half to the total water-evaporation-induced voltage occurring within the partially-wetted region of the carbon black film where the solid-liquid-gas three-phase interface *** is also shown that water evaporation from carboxyl and amino-functionalized carbon black films produces opposite voltage *** first-principles calculations unveil that the adsorption of water molecules can lead to reversed charge transfer in the carboxyl and amino-functionalized carbon ***,an evaporation-driven charge transport mechanism is proposed for the induced electricity mediated by the coupling between water molecules and charge carriers in the *** results reveal the important role of direct interaction between water molecules and materials,deepening our understanding of the mechanism for evaporation-induced hydrovoltaic effect beyond streaming potential.

关键词： evaporation-induced electricity streaming potential hydrovoltaic effect charge transfer

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Integrated benefits of power generation by straw biomass--A case study on the Sheyang Straw Power Plants in jiangsu province,China

引用

Frontiers of Environmental Science & Engineering 2009年第3期3卷 348-353页

作者： Xiaoshun LI Futian QU Dongmei JIANG Peixin ZHU China Centre for Land Policy Research Nanjing Agriculture UniversityNanjing 210095China

Power generation using straw biomass has quantifiable benefits from an economic,ecological,and sociological perspective in *** methods used to construct the assessment models of these integrated benefits were the revenue capitalization approach and the discounted-cash-flow *** results indicated that a straw power plant with the capacity of 2.50×10^(7)W and burning 1.23×10^(5)tons of cotton straw could annually supply 1.40×10^(8)kWh of ***,it would not be until six years later that these results could be *** the long term,the gross benefits could reach up to 4.63×10^(8)***,the total benefits are expected to be 1.18×10^(12)Yuan if all available straw resources are used to generate *** policy implication showed that the long-term integrated benefits of power generation by straw biomass outweighed the short-term *** is the main incentive to use straw biomass for power generation in the future.

关键词： straw biomass resources power generation renewable energy Sheyang county

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Normal Functions and α-Normal Functions

引用

Acta Mathematica Sinica,English Series 2000年第3期16卷 399-404页

作者： Yan Xu Department of Mathematics,Nanjing Normal University,Nanjing 210097 P.R.China Department of Mathematics Nanjing Normal University Nanjing 210097 P. R. China

This paper has studied two open questions about normal functions due to Lappan,and obtained two corresponding results for α-normal functions.

关键词： Spherical derivative Normal function α-Normal function

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ultradurable,freeze-resistant,and healable MXene-based ionic gels for multi-functional electronic skin

引用

Nano Research 2022年第5期15卷 4421-4430页

作者： Yao Lu Xinyu Qu Siying Wang Ye Zhao Yanfang Ren Wenli Zhao Qian Wang Chencheng Sun Wenjun Wang Xiaochen Dong Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) School of Physical and Mathematical SciencesNanjing Tech University(NanjingTech)30 South Puzhu RoadNanjing 211816China School of Physical Science and Information Technology Liaocheng UniversityLiaocheng 252059China School of Electronic and Information Engineering Changshu Institute of TechnologyChangshu 215500China

Hydrogel is a potential matrix material of electronic-skins(E-skins)because of its excellent ductility,tunability,and ***,hydrogel-based E-Skins will inevitably lose their sensing performance in practical applications for water loss,physical damage,and ambient *** remains a challenge to manufacture highly durable gel-based ***,an E-Skin is fabricated by introducing ionic liquids(ILs)into MXene-composited binary polymer *** obtained ionic gel shows excellent mechanical properties,strong adhesion,and superior tolerance to harsh *** E-skin exhibits high sensitivity to both strain and pressure in a wide range of deformations,which enables a monitoring function for various human motions and physiological ***,the E-skin shows consistent electrical response after being stored in the open air for 30 days and can be quickly healed by irradiation with 808 nm near-infrared light,originating from the photo-thermal effect induced self-healing *** is noteworthy that the E-skin also reveals a highly sensitive perception of temperature and near-infrared light,displaying the promising potential applications in the multifunctional flexible sensor.

关键词： E-skins MXene environment resistance photothermal effect flexible sensor

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Er和Sc对Al-Cu合金时效行为和θ′析出稳定性的协同作用(英文)

引用

Transactions of Nonferrous Metals Society of China 2024年

作者：侯兴凯文胜平亓鹏魏午吴晓蓝黄晖高坤元熊湘沅聂祚仁北京工业大学工业大数据应用技术国家工程实验室材料与制造学部中国铝业科学技术研究院有限公司

通过透射电子显微镜（TEM）和高角度环形暗场（HAADF）系统研究了Er和Sc协同添加对合金时效和界面偏析行为的影响。TEM结果表明，具有核壳结构的Al3（Sc，Zr）可以作为θ′的形核位点促进其均匀细小析出。STEM结果表明，在225 ℃下热暴... 详细信息

通过透射电子显微镜（TEM）和高角度环形暗场（HAADF）系统研究了Er和Sc协同添加对合金时效和界面偏析行为的影响。TEM结果表明，具有核壳结构的Al3（Sc，Zr）可以作为θ′的形核位点促进其均匀细小析出。STEM结果表明，在225 ℃下热暴露150 h的过程中，Er溶质原子优先富集在θ′相结构内部。然而，在300 ℃时才观察到Sc和Mn溶质原子在θ′/αAl基体界面处的偏析。由于Er在θ′相结构中的早期富集，才能够使缓慢扩散的Sc和Mn在θ′相发生严重粗化之前偏析到θ′沉淀物的界面处，从而在更高的温度下进一步稳定θ′沉淀物。

关键词： Er/Sc共添加时效行为 θ′析出稳定性溶质偏析 Al-Cu合金

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：