检索结果-内蒙古大学图书馆

NATURE REVIEWS METHODS PRIMERS 2021年第1期1卷 1页

作者： Willson, Joseph Division of Engineering in Medicine Brigham and Women’s Hospital Department of Medicine Harvard Medical School Cambridge MA USA Department of Mechanical Engineering University of Minnesota Minneapolis MN USA Laboratory of Stem Cell Bioengineering Institute of Bioengineering School of Life Sciences and School of Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL) Lausanne Switzerland Institute of Chemical Sciences and Engineering School of Basic Science EPFL Lausanne Switzerland Trinity Centre for Biomedical Engineering Trinity Biomedical Sciences Institute Trinity College Dublin Dublin Ireland Department of Mechanical Manufacturing and Biomedical Engineering School of Engineering Trinity College Dublin Dublin Ireland Advanced Materials and Bioengineering Research Centre (AMBER) Royal College of Surgeons in Ireland and Trinity College Dublin Dublin Ireland Department of Anatomy and Regenerative Medicine Royal College of Surgeons in Ireland Dublin Ireland School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore Singapore Singapore Centre for 3D Printing (SC3DP) School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore Singapore HP-NTU Digital Manufacturing Corporate Lab Nanyang Technological University Singapore Singapore Department of Health Sciences and Technology ETH Zürich Zürich Switzerland Department of Orthopedics University Medical Center Utrecht Utrecht Netherlands Department of Clinical Sciences Faculty of Veterinary Medicine Utrecht University Utrecht Netherlands

This PrimeView on 3D extrusion bioprinting accompanies the Primer by Zhang et al. and highlights the main stages of the 3D extrusion bioprinting process.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Revealing the Dominance of the Dissolution-Deposition Mechanism in Aqueous Zn−MnO2Batteries

引用

Angewandte Chemie 2023年第6期136卷

作者： Yadong Li Yuhao Li Qingshan Liu Yongshuai Liu Tiansheng Wang Mingjin Cui Prof. Yu Ding Prof. Hongsen Li Prof. Guihua Yu College of Physics Qingdao University Qingdao 266071 China Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 P. R. China Materials Science and Engineering Program and Walker Department of Mechanical Engineering The University of Texas at Austin Austin TX 78712 USA

Zn−MnO 2 batteries have attracted extensive attention for grid-scale energy storage applications, however, the energy storage chemistry of MnO 2 in mild acidic aqueous electrolytes remains elusive and controversial. Using α-MnO 2 as a case study, we developed a methodology by coupling conventional coin batteries with customized beaker batteries to pinpoint the operating mechanism of Zn−MnO 2 batteries. This approach visually simulates the operating state of batteries in different scenarios and allows for a comprehensive study of the operating mechanism of aqueous Zn−MnO 2 batteries under mild acidic conditions. It is validated that the electrochemical performance can be modulated by controlling the addition of Mn 2+ to the electrolyte. The method is utilized to systematically eliminate the possibility of Zn 2+ and/or H + intercalation/de-intercalation reactions, thereby confirming the dominance of the MnO 2 /Mn 2+ dissolution-deposition mechanism. By combining a series of phase and spectroscopic characterizations, the compositional, morphological and structural evolution of electrodes and electrolytes during battery cycling is probed, elucidating the intrinsic battery chemistry of MnO 2 in mild acid electrolytes. Such a methodology developed can be extended to other energy storage systems, providing a universal approach to accurately identify the reaction mechanism of aqueous aluminum-ion batteries as well.

关键词： Aqueous Batteries Dissolution-Deposition Mechanism Energy Storage Mechanism Zinc-Ion Batteries

来源：评论

学校读者我要写书评

暂无评论

Biomolecular microneedles loaded with MXenes/CuS heterojunction improve biofilm management in chronic wounds via activating nanozyme-like reactions and bacterial ferroptosis

引用

Chemical engineering Journal 2025年 518卷

作者： Wang Wang Guanyi Wang Sheng Li Ruoyu Li Zesheng Chen Wenjie You Weikang Hu Bing Li Zijian Wang Department of Urology Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center Zhongnan Hospital of Wuhan University Wuhan 430071 China Department of Biomedical Engineering Hubei Province Key Laboratory of Allergy and Immune Related Disease TaiKang Medical School (School of Basic Medical Sciences) Wuhan University Wuhan 430071 China Orthopedic Hospital The First Affiliated Hospital Jiangxi Medical College Nanchang University Nanchang 330006 China School of Materials Science and Engineering Stem Cells and Tissue Engineering Manufacture Center Hubei University Wuhan 430062 China

Bacterial biofilm, which can produce cytotoxic metabolites and debris, activate hazardous immune responses, and destroy the microenvironment necessary for skin tissue regeneration, frequently obstructs wound healing. When bacteria form biofilms, they make extracellular polymeric substances (EPS) and have a dense structure that makes them harder to treat than free bacteria. Anti-biofilm wound dressings are currently advancing the clinical approaches to managing chronic wounds. A MXenes/CuS heterojunction was first prepared using a hydrothermal method and then incorporated into the tip areas of photo-crosslinked methacrylate gelatin (GelMA) microneedles, which had double-layer structures and were termed GTCM microneedles. The results indicated that GTCM microneedles possessed favorable physicochemical characteristics, photothermal efficacy, and biocompatibility. GTCM microneedles, in conjunction with moderate photothermal treatment (MPTT), demonstrated effective broad-spectrum antibacterial and anti-biofilm properties, attributable to extracellular nanozyme-like reactions and intercellular bacterial ferroptosis. GTCM microneedles combined with MPTT could also accelerate S. aureus -infected wound healing via various mechanisms, such as promoting cell proliferation, M2 macrophage polarization, vascularization, and collagen deposition. This study not only developed a MXenes/CuS heterojunction-laden biomolecular microneedle with translational potential but also revealed the ferroptosis interactions between bacterial cells and micro-nano materials.

关键词： Bacterial biofilm Ferroptosis MXenes Nanozyme Wound healing

来源：评论

学校读者我要写书评

暂无评论

Ultra-Cold Cryogenic TEM Sample Holder with Liquid Helium and High Stability

引用

Microscopy and Microanalysis 2024年第SUPPLEMENT_1期30卷

作者： Gates, Maya Rennich, Emily Sung, Suk Hyun Agarwal, Nishkarsh Kerns, Robert Hovden, Robert Baggari, Ismail El Department of Mechanical Engineerin University of Michigan Ann Arbor MI USA Rowland Institute at Harvard University Cambridge MA USA Department of Materials Science & Engineering University of Michigan Ann Arbor MI USA Michigan Center for Materials Characterization University of Michigan Ann Arbor MI USA Applied Physics Program University of Michigan Ann Arbor MI USA

来源：评论

学校读者我要写书评

暂无评论

Tackling the Short-Lived Marangoni Motion Using a Supramolecular Strategy

引用

CCS Chemistry 2019年第2期1卷 148-155页

作者： Mengjiao Cheng Dequn Zhang Shu Zhang Zuankai Wang Feng Shi State Key Laboratory of Organic-Inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing Laboratory of Biomedical MaterialsBeijing University of Chemical TechnologyBeijing 100029China Department of Mechanical and Biomedical Engineering City University of Hong KongHong Kong 999077China

Inspired by the intriguing capability of beetles to quickly slide on water,scientists have long imagined the use of this surface-tension-gradient-dominated Marangoni motion in various applications,for exam-ple,self-pr... 详细信息

关键词： Supramolecular chemistry Marangoni effect host/guest chemistry mini-generator self-assembly

来源：评论

学校读者我要写书评

暂无评论

Slowly Removing Surface Ligand by Aging Enhances the Stability of Pd Nanosheets toward Electron Beam Irradiation and Electrocatalysis

引用

Angewandte Chemie 2023年第52期135卷

作者： Dr. Yu Zhang Dr. Shaobo Han Dr. Shangqian Zhu Dr. Ruhui Chen Tiehuai Li Dr. Zhiheng Lyu Dr. Ming Zhao Prof. Dr. Meng Gu Prof. Dr. Minhua Shao Prof. Dr. Younan Xia The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology Emory University 30332 Atlanta GA USA Department of Chemical and Biological Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China School of Mechanical and Power Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China Department of Materials Science and Engineering Southern University of Science and Technology 518055 Shenzhen P. R. China School of Chemistry and Biochemistry Georgia Institute of Technology 30332 Atlanta GA USA

Surface ligands play an important role in shape-controlled growth and stabilization of colloidal nanocrystals. Their quick removal tends to cause structural deformation and/or aggregation to the nanocrystals. Herein, we demonstrate that the surface ligand based on poly(vinylpyrrolidone) (PVP) can be slowly removed from Pd nanosheets (NSs, 0.93±0.17 nm in thickness) by simply aging the colloidal suspension. The aged Pd NSs show well-preserved morphology, together with significantly enhanced stability toward both e-beam irradiation and electrocatalysis (e.g., ethanol oxidation). It is revealed that the slow desorption of PVP during aging forces the re-exposed Pd atoms to reorganize, facilitating the surface to transform from being nearly perfect to defect-rich. The resultant Pd NSs with abundant defects no longer rely on surface ligand to stabilize the atomic arrangement and thus show excellent structural and electrochemical stability. This work provides a facile and effective method to maintain the integrity of colloidal nanocrystals by slowly removing the surface ligand.

关键词： Catalysis Pd Nanosheets Stability Surface Ligand Surface Reconstruction

来源：评论

学校读者我要写书评

暂无评论

Three-dimensional ultrafast charge-density-wave dynamics in CuTe

引用

Nature Communications 2024年第1期15卷 2386页

作者： Nhat Quyen, Nguyen Tzeng, Wen-Yen Hsu, Chih-En Lin, I-An Chen, Wan-Hsin Jia, Hao-Hsiang Wang, Sheng-Chiao Liu, Cheng-En Chen, Yu-Sheng Chen, Wei-Liang Chou, Ta-Lei Wang, I-Ta Kuo, Chia-Nung Lin, Chun-Liang Wu, Chien-Te Lin, Ping-Hui Weng, Shih-Chang Cheng, Cheng-Maw Kuo, Chang-Yang Tu, Chien-Ming Chu, Ming-Wen Chang, Yu-Ming Lue, Chin Shan Hsueh, Hung-Chung Luo, Chih-Wei Department of Electrophysics National Yang Ming Chiao Tung University Hsinchu 30010 Taiwan Department of Electronic Engineering National Formosa University Yunlin 632 Taiwan Department of Physics Tamkang University New Taipei City 251301 Taiwan National Synchrotron Radiation Research Center Hsinchu 30076 Taiwan Center for Condensed Matter Sciences National Taiwan University Taipei 10617 Taiwan Department of Physics National Cheng Kung University Tainan 70101 Taiwan Physics Division National Center for Theoretical Sciences Taipei Taiwan Undergraduate Degree Program of Systems Engineering and Technology National Yang Ming Chiao Tung University Hsinchu 30010 Taiwan Chung Cheng Institute of Technology National Defense University Taoyuan 335009 Taiwan Center of Atomic Initiative for New Materials (AI-MAT) National Taiwan University Taipei 10617 Taiwan Taiwan Consortium of Emergent Crystalline Materials (TCECM) National Science and Technology Council Taipei 10601 Taiwan Institute of Physics and Center for Emergent Functional Matter Science National Yang Ming Chiao Tung University Hsinchu 30010 Taiwan Department of Physics University of Washington Seattle 98195 WA United States

Charge density waves (CDWs) involved with electronic and phononic subsystems simultaneously are a common quantum state in solid-state physics, especially in low-dimensional materials. However, CDW phase dynamics in various dimensions are yet to be studied, and their phase transition mechanism is currently moot. Here we show that using the distinct temperature evolution of orientation-dependent ultrafast electron and phonon dynamics, different dimensional CDW phases are verified in CuTe. When the temperature decreases, the shrinking of c-axis length accompanied with the appearance of interchain and interlayer interactions causes the quantum fluctuations (QF) of the CDW phase until 220 K. At T < 220 K, the CDWs on the different ab-planes are finally locked with each other in anti-phase to form a CDW phase along the c-axis. This study shows the dimension evolution of CDW phases in one CDW system and their stabilized mechanisms in different temperature regimes. © The Author(s) 2024.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Metal-Phenolic Nanocloaks on Cancer Cells Potentiate STING Pathway Activation for Synergistic Cancer Immunotherapy

引用

Angewandte Chemie 2024年第12期136卷

作者： Xianglian He Dr. Guidong Gong Mei Chen Haojie Zhang Yajing Zhang Dr. Joseph J. Richardson Prof. Wood Yee Chan Dr. Yunxiang He Prof. Junling Guo BMI Center for Biomass Materials and Nanointerfaces College of Biomass Science and Engineering Sichuan University Chengdu Sichuan 610065 China Department of Chemical and Environmental Engineering RMIT University Melbourne Victoria 3000 Australia School of Biomedical Sciences Faculty of Medicine The Chinese University of Hong Kong Center for Neuromusculoskeletal Restorative Medicine Hong Kong Science Park Shatin New Territories Hong Kong SAR China Department of Chemical and Biological Engineering The University of British Columbia Vancouver BC V6T 1Z4 Canada

Due to the presence of natural neoantigens, autologous tumor cells hold great promise as personalized therapeutic vaccines. Yet autologous tumor cell vaccines require multi-step production that frequently leads to the loss of immunoreactive antigens, causing insufficient immune activation and significantly hampering their clinical applications. Herein, we introduce a novel whole-cell cancer vaccine by cloaking cancer cells with lipopolysaccharide-decorated manganese(II)-phenolic networks (MnTA nanocloaks) to evoke tumor-specific immune response for highly efficacious synergistic cancer immunotherapy. The natural polyphenols coordinate with Mn 2+ and immediately adhere to the surface of individual cancer cells, thereby forming a nanocloak and encapsulating tumor neoantigens. Subsequent decoration with lipopolysaccharide induces internalization by dendritic cells, where Mn 2+ ions are released in the cytosol, further facilitating the activation of the stimulator of the interferon genes (STING) pathway. Highly effective tumor suppression was observed by combining the nanocloaked cancer cell treatment with anti-programmed cell death ligand 1 (anti-PD-L1) antibodies-mediated immune checkpoint blockade therapy. Our work demonstrates a universal yet simple strategy to engineer a cell-based nanobiohybrid system for enhanced cancer immunotherapy.

关键词： Cell surface engineering nanocoating metal-phenolic nanocloak cancer immunotherapy

来源：评论

学校读者我要写书评

暂无评论

Inside Back Cover: A Near-Infrared Light-Activated Photocage Based on a Ruthenium Complex for Cancer Phototherapy (Angew. Chem. Int. Ed. 24/2023)

引用

Angewandte Chemie International Edition 2023年第24期62卷

作者： Guangli He Maomao He Ran Wang Xuezhao Li Hanze Hu Dongsheng Wang Ziqian Wang Yang Lu Ning Xu Jianjun Du Jiangli Fan Xiaojun Peng Wen Sun State Key Laboratory of Fine Chemicals Frontiers Science Center for Smart Materials Oriented Chemical Engineering Dalian University of Technology Dalian 116024 China Department of Biomedical Engineering Columbia University New York NY 10027 USA School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 China Ningbo Institute of Dalian University of Technology 26 Yucai Road Jiangbei District Ningbo 315016 China

来源：评论

学校读者我要写书评

暂无评论

Identification of the quality of premium and non-premium rice based on physical characteristics using artificial neural networks and digital image processing

引用

AIP Conference Proceedings 2024年第1期3065卷

作者： Endah Sekar Palupi Riries Rulaningtyas Toetik Rahayuningsih Ahmad Yudianto Department of Forensic Science Postgraduate School Department of Health Faculty of Vocational Studies Universitas Airlangga Surabaya Indonesia Biomedical Engineering Study Program Department of Physics Universitas Airlangga Surabaya Indonesia Criminal Law Department of Law Faculty of Law Universitas Airlangga Surabaya Indonesia Department of Forensic Medicine and Medicolegal Faculty of Medicine Universitas Airlangga Surabaya Indonesia

Counterfeiting of quality rice was rife in Indonesia. This research was conducted to develop technology to identify differences in premium and non-premium rice quality based on pre-existing digital images. Artificial neural networks and digital image processing methods to identify premium and medium (non-premium) rice quality were applied in this research. Statistical analysis of this study used the SPSS program. This research is observation-type research. This research design uses an artificial neural network with uses 3 layers, namely the results of shape feature extraction on the metric, eccentricity, area, and perimeter parameters as input or input layers, hidden or hidden layers, and premium rice and non-premium (medium) rice as output or output layers. This research uses 52 images as training and 20 images as testing. The obtained image was taken at a distance of 25 cm. This research showed that the results of training using artificial neural networks (ANN) on 52 images obtained an accuracy of 92%. The test results using 20 images obtained 95% accuracy, 63.33% sensitivity, and 10% specificity. Based on statistical analysis using the Mann-Whitney test, it obtained the asymph value. Sig (2-tailed) < 0.05 indicates the difference between premium and non-premium rice using metric, eccentricity, perimeter, and area parameters.

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：