检索结果-南通市图书馆

Dual-Emission Carbonized Polymer Dots Combined with Metal Ions as a single-component Fluorescence Sensor Array for Pattern Recognition of Glycosaminoglycans

引用

Journal of Analysis and Testing 2023年第3期7卷 285-294页

作者： Ziyang Lin Wenbang Yu Rong Hu Ruixuan Hu Zihan Wei Min Zhang Jinhua Polytechnic Jinhua 321000China Rizhao Polytechnic Rizhao 276800China School of Chemistry and Molecular Engineering Shanghai Key Laboratory for Urban Ecological Processes and Eco-RestorationEast China Normal UniversityShanghai 200241China

Herein,a novel dual-emission fluorescence sensor array of carbonized polymer dots(CPDs)-Cu^(2+)has been proposed,in which CPDs were prepared by one-pot hydrothermal method and Cu^(2+)acting as a quencher was combined with CPDs by electrostatic *** negatively charged glycosaminoglycans(GAGs)bearing different hydrophilic groups showed variable binding affinities towards CPDs-Cu^(2+).Upon reacting with these GAGs,the different fluorescence response signals of CPDs-Cu^(2+)can be further differentiated by principal component analysis(PCA).The CPDs-Cu^(2+)sensor array,not only allows the identification of four similarly structured GAGs,but also realizes the discrimination of different concentrations of the same GAGs and their ***,the identification of GAGs in biological fluids can also be achieved using our proposed single-component sensor array,validating its application *** new strategy avoids multiple sensing probes,broadens the application of tongue-mimic sensor arrays and provides a viable idea for the development of single component sensing platforms.

关键词： CPDs GAGs single-component Dual-emission Sensor array Biological fluids

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

Hydrothermal synthesis of uniform CdWO4:Eu^3+microrods as single component for UV-based WLEDs

引用

Journal of Rare Earths 2016年第12期34卷 1179-1187页

作者：雷芳殷录桥施鹰谢建军章蕾范灵聪 School of Materials Science and Enggineering Shanghai UniversityShanghai 200444China Key Laboratory of Advanced Display and System Applications Ministry of EducationShanghai UniversityShanghai 200072China

A series of single-composition emission-tunable CdWO4：Eu^3＋ uniform size nanorods were synthesized by polyvinylpyrrolidone（PVP） assisted hydrothermal process. The products were measured by powder X-ray diffraction（PXRD）, scanning electron microscopy（SEM）, transmission electron microscopy（TEM）, photoluminescence, and fluorescent decay test. The results showed that reaction time, temperature, p H values and Eu^3＋ doped concentration played important roles in determining the morphologies and photoluminescent properties. And we also investigated its use in Ga N LED, warm-white-light could be obtained by the combination of the bright blue light originated from the charge transfer transition in the tungstate groups and the near UV light from LED chip with the red emission from 4f-4f transition of Eu^3＋, respectively. By properly tuning the doping concentration of Eu^3＋, chromaticity coordinates（0.30 0.22） could be achieved under the 380 nm excitation and its color rendering index was 80.6. So it has potential application in warm-WLED and replacing the commercial YAG：Ce phosphor which absence of red band emission.

关键词： CdWO4:Eu3+ hydrothermal synthesis WLED photoluminescence single-component rare earths

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

An Isoindigo-Based ＂Double-Cable＂ Conjugated Polymer for singlecomponent Polymer Solar Cells

引用

Chinese Journal of Chemistry 2018年第6期36卷 515-518页

作者： Changshi Yu Yunhua Xu Cheng Li Guitao Feng Fan Yang Junyu Li Weiwei Li Department of Chemistry School of Science Beijing Jiaotong University Beijing 100044 China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China DSM DMSC R&D Solutions P.O. Box 18 6160 MD Geleen The Netherlands

An isoindigo-based ＂double-cable＂ conjugated polymer bearing perylene bisimide side units was developed via Stille polymerization for application in single-component polymer solar cells, in which a power conversion efficiency of 1% with broad photo-response from 300 nm to 800 nm was achieved. There is no evidence of large phase separation confirmed by AFM images and photoluminescence （PL） spectra. The space charge limit current measurements and light intensity dependence measurements indicate that the low electron mobility and the significant recombination of pho- togenerated charge carriers in active layer mainly account for the low performance of our solar cells. Our results suggest that these ＂double-cable＂ are oromising candidates for use in single-component polymer solar cells with NIR photoresponse.

关键词： conjugated polymer isoindigo polymer solar cells perylene bisimide single-component

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

Chemical synthesis of magnetic nanocrystals:Recent progress

引用

Chinese Physics B 2013年第10期22卷 13-31页

作者：刘飞朱静菡侯仰龙高松 Department of Materials Science and Engineering College of EngineeringPeking University College of Chemistry and Molecular Engineering Peking University

Colloidal chemical synthesis of various types of magnetic nanocrystals is discussed with regard to recent discoveries. We first outline the chemical preparation of single-component magnetic nanocrystals with controlled size, shape, and uniformity based on several solution-phase methods, especially thermal decomposition and/or reduction method. Then we discuss the synthetic strategies of multi-component nanocrystals incorporating at least one magnetic component by manipulating heterogeneous nucleation and growth process. Toward the end, approaches for preparing hollow/porous magnetic nanocrystals are highlighted. We believe that the summarized chemical synthesis will pave the way for the future development of extraordinary magnetic nanocrystals.

关键词： magnetic nanocrystals chemical synthesis single-component multi-component hollow/porous

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

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

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

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：