检索结果-内蒙古大学图书馆

Dynamic Insights of Developing Functional Nanomaterials for Clean Energy and Microelectronics

Microscopy and Microanalysis 2024年第SUPPLEMENT_1期30卷

作者： Yang, Judith C Hwang, Sooyeon Camino, Fernando Chemical and Petroleum Engineering Department University of Pittsburgh Pittsburgh PA United States Physics and Astronomy Department University of Pittsburgh Pittsburgh PA United States Center for Functional Nanomaterials Brookhaven National Lab Upton NY United States Materials Science and Engineering Program & Department of Mechanical Engineering State University of New York at Binghamton Binghamton NY United States

来源：评论

学校读者我要写书评

暂无评论

Highly efficient capture of E. coli using amidoximated polyacrylonitrile nanofiber membrane immobilized with reactive green 19 dye/polyhexamethylene biguanide: Antibacterial and cytotoxicity studies

引用

Separation and Purification Technology 2024年 338卷

作者： Quang-Vinh Le Bing-Lan Liu Penjit Srinophakun Jeng-Ywan Shih Chi-Yun Wang Chen‑Yaw Chiu Shen-Long Tsai Kuei-Hsiang Chen Yu-Kaung Chang Department of Chemical Engineering National Taiwan University of Science and Technology Taipei City 10607 Taiwan Department of Applied Chemistry Chaoyang University of Technology Taichung 413310 Taiwan Department of Chemical Engineering Kasetsart University 50 Ngamwongwan Road Chatuchak Bangkok 10900 Thailand Department of Chemical Engineering Ming Chi University of Technology New Taipei City 243303 Taiwan International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan Bone and Joint Research Centre Chang Gung Memorial Hospital Taoyuan City 333423 Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Zhongli Dist. Taoyuan City 320315 Taiwan

In this study, we synthesized an amidoximated polyacrylonitrile nanofiber membrane (P-Oxime). Subsequently, we grafted reactive green 19 (RG19) dye onto its surface, resulting in the formation of the P-Oxime-RG19 membrane. Further enhancement was achieved by physically attaching poly(hexamethylene biguanide) hydrochloride (PHMB) to the P-Oxime-RG19 membrane, leading to the formation of the P-Oxime-RG19-PHMB membrane. Extensive characterization of the nanofiber membranes was conducted, focusing on crucial physical and mechanical properties such as functional group content, morphology, and thermostability. The optimization of various modification conditions, including initial dye and PHMB concentrations, duration, temperature, and nitrile group conversion to oxime concentrations, played a pivotal role in achieving superior antibacterial performance in P-Oxime-RG19-PHMB nanofiber membranes. In-depth analyses involved the application of kinetic and equilibrium thermodynamic models to unravel the modification processes of RG19 dye and PHMB in the nanofiber membranes. Under the carefully tuned optimal modification conditions, the P-Oxime-RG19-PHMB nanofiber membrane exhibited remarkable antibacterial efficacy, achieving nearly 100% disinfection of E. coli . In addition to exploring its antimicrobial capabilities, we thoroughly examined the repeatability and biocompatibility of the nanofiber membranes. The results indicated not only the P-Oxime-RG19-PHMB nanofiber membrane was a highly promising antibacterial material but also highlighted its potential for diverse applications, particularly in food and textile fabrication, owing to its exceptional performance and suitability.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Imaging Atomic-Scale Chemistry from Fused Multi-Modal Electron Microscopy

arXiv

引用

arXiv 2022年

作者： Schwartz, Jonathan Di, Zichao Wendy Jiang, Yi Fielitz, Alyssa J. Ha, Don-Hyung Perera, Sanjaya D. Baggari, Ismail El Robinson, Richard D. Fessler, Jeffrey A. Ophus, Colin Rozeveld, Steve Hovden, Robert Department of Materials Science and Engineering University of Michigan Ann ArborMI United States Mathematics and Computer Science Division Argonne National Laboratory LemontIL United States Advanced Photon Source Facility Argonne National Laboratory LemontIL United States Dow Chemical Co. MidlandMI United States Department of Material Science and Engineering Cornell University IthacaNY United States School of Integrative Engineering Chung-Ang University Seoul Korea Republic of Department of Physics Cornell University IthacaNY United States The Rowland Institute at Harvard CambridgeMA United States Department of Electrical Engineering and Computer Science University of Michigan Ann ArborMI United States National Center for Electron Microscopy Molecular Foundry Lawrence Berkeley National Laboratory BerkeleyCA United States Applied Physics Program University of Michigan Ann ArborMI United States

Efforts to map atomic-scale chemistry at low doses with minimal noise using electron microscopes are fundamentally limited by inelastic interactions. Here, fused multi-modal electron microscopy offers high signal-to-noise ratio (SNR) recovery of material chemistry at nano- and atomic- resolution by coupling correlated information encoded within both elastic scattering (high-angle annular dark field (HAADF)) and inelastic spectroscopic signals (electron energy loss (EELS) or energy-dispersive x-ray (EDX)). By linking these simultaneously acquired signals, or modalities, the chemical distribution within nanomaterials can be imaged at significantly lower doses with existing detector hardware. In many cases, the dose requirements can be reduced by over one order of magnitude. This high SNR recovery of chemistry is tested against simulated and experimental atomic resolution data of heterogeneous nanomaterials. © 2022, CC BY.

关键词： Electron microscopy

来源：评论

学校读者我要写书评

暂无评论

A Triply Linked Porphyrin-Norcorrole Hybrid with Singlet Diradical Character

引用

Angewandte Chemie 2024年第16期136卷

作者： Dr. Kaisheng Wang Dr. Satoru Ito Shuang Ren Prof. Dr. Daiki Shimizu Prof. Dr. Norihito Fukui Prof. Dr. Ryohei Kishi Prof. Dr. Qiang Liu Prof. Dr. Atsuhiro Osuka Prof. Dr. Jianxin Song Prof. Dr. Hiroshi Shinokubo Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-cho Chikusa-ku Nagoya Aichi 464-8603 Japan College of Chemistry and Chemical Engineering Advanced Catalytic Engineering Research Center of the Ministry of Education Hunan University Changsha 410082 China Department of Synthetic Chemistry and Biological Chemistry Graduate School of Engineering Kyoto University Nishikyo-ku Kyoto 615-8510 Japan PRESTO Japan Science and Technology Agency (JST) Kawaguchi Saitama 332-0012 Japan Department of Materials Engineering Science Graduate School of Engineering Science Osaka University 1-3 Machikaneyama Toyonaka Osaka 560-8531 Japan Key Laboratory of Chemical Biology and Traditional Chinese Medicine Ministry of Educational of China Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province College of Chemistry and Chemical Engineering Hunan Normal University Changsha 410081 China

来源：评论

学校读者我要写书评

暂无评论

Review Modeling of Solid Waste Transportation Routes Using Geographical Information System (GIS) 4

Review Modeling of Solid Waste Transportation Routes Using G...

引用

4th International Conference on Energy, Environment, Epidemiology and Information System, ICENIS 2019

作者： Haerani, Dian Syafrudin Budi, Sasongko Setia Program of Environmental Science Diponegoro University Semarang Indonesia Department of Environmental Engineering Faculty of Engineering Diponegoro University Semarang Indonesia Department of Chemical Engineering Faculty of Engineering Diponegoro University Semarang Indonesia

Waste transportation is a part of complex waste management. Waste transportation will be influenced by the growth of waste. To simplify the implementation of garbage transportation, a waste transportation model is needed. Various wastes transportation models have been developed to explain the process of transporting garbage. The garbage transport model is basically designed to simplify the transportation system so that the behavior of several components in the system can be known. One of the models that can be used in the garbage transportation system is GIS. GIS is a spatial and computerized waste-based modeling, so in era 4.0 this modeling of waste transportation using GIS was needed. This paper aims to discuss the modeling of waste transportation using GIS has been carried out in various regions. The discussion of the paper discusses the use of GIS in waste transportation, a factor that influences GIS in waste transportation. © The Authors, published by EDP sciences, 2019.

关键词： Solid wastes

来源：评论

学校读者我要写书评

暂无评论

Hierarchically Porous C/Fe3C Membranes with Fast Ion-Transporting Channels and Polysulfide-Trapping Networks for High-Areal-Capacity Li-S Batteries

引用

Nano letters 2020年第1期20卷 701-708页

作者： Xiangcun Li Yue Zhang Shuting Wang Yang Liu Yu Ding Gaohong He Ning Zhang Guihua Yu State Key Laboratory of Fine Chemicals Chemical Engineering Department Dalian University of Technology Dalian 116024 China. Materials Science and Engineering Program and Department of Mechanical Engineering The University of Texas at Austin Austin Texas 78712 United States.

We report here highly scalable yet stackable C/FeC membranes with fast ion-transport micro-/nanochannels and polysulfide-trapping networks via a facile phase-inversion process for high-areal-capacity Li-S batteries. The membrane cathodes with aligned channels and hierarchically porous networks significantly promote Li and electron transportation and meanwhile trap soluble polysulfide intermediates (LiPSs) effectively via strong chemical adsorption of the doped FeC nanoparticles in the membrane toward LiPSs. We further demonstrated that five-layer membrane electrodes with high S loading of 7.1 mg cm were readily prepared via layer-by-layer stacking of the C/FeC membrane, which can deliver a high capacity of 726 mA h g after 100 cycles, corresponding to an ultra-high-areal-capacity of 5.15 mA h cm at a low electrolyte/sulfur (/) ratio of 6.4 μL mg. The scalable multifunctional membrane electrodes with excellent electrochemical performance under high-sulfur-loading and lean electrolyte conditions reveal its promising applications in practical Li-S batteries.

关键词： Li−S batteries ion channels phase inversion polysulfide trapping porous membrane

来源：评论

学校读者我要写书评

暂无评论

Diamine Surface Passivation and Post-Annealing Enhance Performance of Silicon-Perovskite Tandem Solar Cells

arXiv

引用

arXiv 2024年

作者： Taddei, Margherita Contreras, Hannah Doan, Hai-Nam McCarthy, Declan P. Seo, Seongrok Westbrook, Robert J.E. Graham, Daniel J. Datta, Kunal Carroy, Perrine Muñoz, Delfina Correa-Baena, Juan-Pablo Barlow, Stephen Marder, Seth R. Smith, Joel A. Snaith, Henry J. Ginger, David S. Department of Chemistry University of Washington SeattleWA98195 United States Department of Physics University of Oxford OxfordOX1 3PU United Kingdom Institute of Materials Science Technical University of Munich München85748 Germany Department of Chemistry University of Colorado-Boulder BoulderCO80309 United States Department of Bioengineering University of Washington SeattleWA98195 United States School of Materials Science and Engineering Georgia Institute of Technology North Ave NW AtlantaGA30332 United States Université Grenoble Alpes CEA Liten Campus Ines Le Bourget du Lac73375 France Renewable and Sustainable Energy Institute University of Colorado-Boulder BoulderCO80309 United States Department of Chemical and Biological Engineering and Materials Science Program University of Colorado-Boulder BoulderCO80309 United States Physical Sciences Division Physical and Computational Sciences Directorate Pacific Northwest National Laboratory RichlandWA99352 United States

We show that the use of 1,3-diaminopropane (DAP) as a chemical modifier at the perovskite/electron-transport layer (ETL) interface enhances the power conversion efficiency (PCE) of 1.7 eV bandgap FACs mixed-halide perovskite single-junction cells, primarily by boosting the open-circuit voltage (VOC) from 1.06 V to 1.15 V. Adding a post-processing annealing step after C60 evaporation, further improves the fill factor (FF) by 20% from the control to the DAP + post-annealing devices. Using hyperspectral photoluminescence microscopy, we demonstrate that annealing helps improve compositional homogeneity at the top and bottom interfaces of the solar cell, which prevents detrimental bandgap pinning in the devices and improves C60 adhesion. Using time-of-flight secondary ion mass spectrometry, we show that DAP reacts with formamidinium present near the surface of the perovskite lattice to form a larger molecular cation, 1,4,5,6-tetrahydropyrimidinium (THP) that remains at the interface. Combining the use of DAP and the annealing of C60 interface, we fabricate Si-perovskite tandems with PCE of 25.29%, compared to 23.26% for control devices. Our study underscores the critical role of chemical reactivity and thermal post-processing of the C60/Lewis-base passivator interface in minimizing device losses and advancing solar-cell performance of wide-bandgap mixed-cation mixed-halide perovskite for tandem application. © 2024, CC BY.

关键词： Perovskite

来源：评论

学校读者我要写书评

暂无评论

Power-free automated capillary flow assay for SARS-CoV-2 detection 24

Power-free automated capillary flow assay for SARS-CoV-2 det...

引用

24th International Conference on Miniaturized Systems for Chemistry and Life sciences, MicroTAS 2020

作者： Link, Jeremy Carrell, Cody Jang, Ilhoon Panraksa, Yosita Sánchez-Cano, Ana Call, Zachary Noviana, Eka Dandy, David S. Geiss, Brian J. Henry, Charles S. Department of Chemistry Colorado State University United States Institute of Nano and Science and Technology Hanyang University Korea Republic of Program in Biotechnology Faculty of Science Chulalongkorn University Thailand Spain Department of Chemical and Biological Engineering Colorado State University United States Department of Microbiology Immunology and Pathology Colorado State University United States

ISBN: (纸本)9781733419017

An at-home serological test for SARS-CoV2 antibodies was developed that automatically performs sequential reagent delivery and washing for enzyme amplified colorimetric detection. The device that houses the assay enables improved sensitivity and selectivity without sacrificing simplicity for untrained end-users. The microfluidic device was made by laminating transparency sheets and double-sided adhesive and requires only two user steps to operate. Once flow is initiated in the microfluidic channels, reagents are sequentially delivered to and washed from a detection zone, where a colored line indicates the presence of antibodies. Anti-SARS-CoV-2 nucleocapsid protein has been detected from whole blood at clinically relevant concentrations. © 2020 CBMS-0001

关键词： Coronavirus

来源：评论

学校读者我要写书评

暂无评论

Spin Filtering Along Chiral Polymers

引用

Angewandte Chemie 2020年第34期132卷 14779-14784页

作者： Mishra S. Mondal A.K. Smolinsky E.Z.B. Naaman R. Maeda K. Nishimura T. Taniguchi T. Yoshida T. Takayama K. Yashima E. Department of Chemical and Biological Physics Weizmann Institute Rehovot 76100 Israel WPI Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Chikusa-ku Nagoya 464-8603 Japan

Spin-dependent conduction and polarization in chiral polymers were studied for polymers organized as self-assembled monolayers with conduction along the polymer backbone, namely, along its longer axis. Large spin polarization and magnetoresistance effects were observed, showing a clear dependence on the secondary structure of the polymer. The results indicate that the spin polarization process does not include spin flipping and hence it results from backscattering probabilities for the two spin states. © 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.

关键词： chirality electron transport materials chemistry polymers self-assembly

来源：评论

学校读者我要写书评

暂无评论

Characterization and performances of hydrophobic polymer membrane modified with dragon’s blood resin

引用

AIP Conference Proceedings 2023年第1期2613卷

作者： Aulia Chintia Ambarita Sri Mulyati Nasrul Arahman Muhammad Roil Bilad 1Doctoral School of Engineering Science School of Engineering Post Graduate Program Universitas Syiah Kuala Banda Aceh 23111 Indonesia 2Department of Chemical Engineering Faculty of Engineering Universitas Syiah Kuala Banda Aceh 23111 Indonesia 3Department of Chemical and Process Engineering Faculty of Integrated Technologies Universiti Brunei Darussalam Jalan Tungku Link-Gadong BE1401 Brunei

Hydrophobic membranes have limitations, which are the low permeation rate and susceptible to fouling, therefore membrane modifications are generally required. In this paper, hydrophobic polymer membrane modification has been studied by mixing dragon's blood resin (DBR) as bio additive. Two types of polymers were used, they were polyethersulfon (M-3 PES) and polyvinylidene Two types of polymers were used, they were polyethersulfon (M-3 PES) and polyvinylidene fluoride (M-3 PVDF) with a concentration of 14.5% polymer and 3% DBR. The results showed that M-3 PES had greater porosity, water uptake, pore size, and clean water flux than M3-PVDF. However, the antifouling performance of M-3 PVDF membrane tends to be better than M-3 PES, as well as its rejection. Both membranes tend to be stable even after repeated use.

关键词：

来源：评论

学校读者我要写书评

暂无评论

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

请选择保存的检索档案：

请选择收藏分类：

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

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

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：