检索结果-内蒙古大学图书馆

Publisher's Note: “Strategies for improving performance, lifetime, and stability in light-emitting diodes using liquid medium” [Chem. Phys. Rev. 2, 041302 (2021)]

引用

Chemical Physics Reviews 2021年第4期2卷

作者： Sadra Sadeghi Guncem Ozgun Eren Sedat Nizamoglu 1Department of Electrical and Electronic Engineering Koç University Istanbul 34450 Turkey 2Graduate School of Materials Science and Engineering Koç University Istanbul 34450 Turkey 3Department of Biomedical Science and Engineering Koç University Istanbul 34450 Turkey

This article was originally published online on 8 October 2021 with errors in Refs. 41, 179, 188, 226, 235, 264, 265, and 268. The corrected references appear b

关键词：

来源：评论

学校读者我要写书评

暂无评论

programmable Site-Specific Functionalization of DNA Origami with Polynucleotide Brushes

引用

Angewandte Chemie 2021年第43期133卷

作者： Yunqi Yang Qinyi Lu Dr. Chao-Min Huang Hongji Qian Yunlong Zhang Dr. Sonal Deshpande Prof. Dr. Gaurav Arya Prof. Dr. Yonggang Ke Prof. Dr. Stefan Zauscher Department of Mechanical Engineering and Materials Science Duke University Durham NC 27708 USA Department of Chemistry Emory University Atlanta GA 30322 USA Department of Biomedical Engineering Duke University Durham NC 27708 USA Department of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30322 USA

Combining surface-initiated, TdT (terminal deoxynucleotidyl transferase) catalyzed enzymatic polymerization (SI-TcEP) with precisely engineered DNA origami nanostructures (DONs) presents an innovative pathway for the generation of stable, polynucleotide brush-functionalized DNA nanostructures. We demonstrate that SI-TcEP can site-specifically pattern DONs with brushes containing both natural and non-natural nucleotides. The brush functionalization can be precisely controlled in terms of the location of initiation sites on the origami core and the brush height and composition. Coarse-grained simulations predict the conformation of the brush-functionalized DONs that agree well with the experimentally observed morphologies. We find that polynucleotide brush-functionalization increases the nuclease resistance of DONs significantly, and that this stability can be spatially programmed through the site-specific growth of polynucleotide brushes. The ability to site-specifically decorate DONs with brushes of natural and non-natural nucleotides provides access to a large range of functionalized DON architectures that would allow for further supramolecular assembly, and for potential applications in smart nanoscale delivery systems.

关键词： DNA nanotechnology drug delivery molecular dynamics simulations nuclease resistance surface-initiated polymerization

来源：评论

学校读者我要写书评

暂无评论

Characterization of crystal structure and mechanical properties of polycaprolactone-hydroxyapatite-collagen nanofiber for scaffold anterior cruciate ligament (ACL) applications

引用

AIP Conference Proceedings 2022年第1期2663卷

作者： Faika Hanum Salsabilah Djony Izak Rudyardjo Sofijan Hadi Tahta Amrillah Aminatun Aminatun 1Program Study of Biomedical Engineering Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya 60115 Indonesia 2Program Study of Physics Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya 60115 Indonesia 3Program Study of Chemistry Department of Chemistry Faculty of Science and Technology Universitas Airlangga Surabaya 60115 Indonesia 4Program Study of Nanotechnology Faculty of Advance technology and Multidiscipline-Universitas Airlangga Surabaya 60115 Indonesia

Recently, it was found that the case of knee injuries could reach a prevalence of 48 per 1000 peoples in one year, with 9% being categorized as Anterior Cruciate Ligament (ACL) injuries. The most common cause of ACL injuries is sports activities. Several strategies were used to heal this injury, such as a treatment, up to autographs bone graft surgery. Current research developments lead to the use of artificial ligaments to heal the ACL injuries which have many advantages over autografts. Thus, this present study aims to fabricate the artificial ligament using hydroxyapatite (HA)/collagen/polycaprolactone (PCL) nanofiber composites. Here, we try to determine the effect of variations of HA, collagen, and PCL compositions in the nanofiber composites by studying their crystal structure and mechanical properties (tensile strength). We use variations of PCL: HA: collagen compositions about of 50:45:5, 50:40:10, 50:35:15, 50:30:20, and 50:25:25 wt%, respectively, in the 10% w/v of solution concentrations. In this present research, the nanofiber was fabricated by using electrospinning method with a voltage of 23 kV, while, the distance between the needle and the collector of about of 15 cm. The XRD and tensile strength tests were used to study the effects of PCL: HA: collagen compositions. In the XRD test, we found that the PCL peaks were detected at 2θ = 21° and 23° and HA was found at 2θ = 31°. The PCL crystal size is found to be 47.82-86.87 nm and the degree of crystallinity is 24.31-36.87%. In the mechanical test, the Ultimate Tensile Strength (UTS) value was obtained in the range of 0.942 MPa-2.864 MPa. It was found that the PCL could increase the tensile strength. However, the obtained UTS value is still far from the UTS of the original human ACL value.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Magnetic nanostructure-loaded bicontinuous nanospheres for magnetic resonance imaging and drug delivery 42

Magnetic nanostructure-loaded bicontinuous nanospheres for m...

引用

42nd Society for Biomaterials Annual Meeting and Exposition 2019: The Pinnacle of Biomaterials Innovation and Excellence

作者： Modak, Mallika Nandwana, Vikas Dravid, Vinayak Scott, Evan Department of Biomedical Engineering Northwestern University EvanstonIL United States Chemistry of Life Processes Institute Northwestern University EvanstonIL United States Department of Materials Science and Engineering Northwestern University EvanstonIL United States Simpson Querrey Institute Northwestern University Feinberg School of Medicine ChicagoIL United States

ISBN: (纸本)9781510883901

Statement of Purpose: Poly(ethylene glycol)-bl-poly(propylene sulfide) (PEG-bl-PPS) (Fig 1a) is a versatile block copolymer system capable of forming nanocarriers of various morphologies such as micelles (MCs), polymersomes (PSs), and most recently bicontinuous nanospheres (BCNs)1,2. These nanocarriers have been used to deliver hydrophobic and hydrophilic therapeutics to different target tissues and cells based on particle morphology1,3. To enhance targeting and drug delivery, encapsulating magnetic nanostructures (MNS) (Fig 1b) into PEG-bl-PPS nanocarriers is of interest4. Loading of MNS would provide responsiveness to both 1) static and 2) alternating magnetic fields, allowing for 1) controlled directional manipulation of nanocarriers and 2) hyperthermia-based treatment and actuated drug release5. MNS have also been well established for diagnostic imaging, as they are potent T2 MRI contrast agents4. Here, we have loaded MNS into three different PEG-bl-PPS morphologies and characterized the resulting effects on MR imaging parameters as a first step in developing a magnetic PEG-bl-PPS construct for drug delivery. © 2019 Omnipress - All rights reserved.

关键词： Polyethylene glycols

来源：评论

学校读者我要写书评

暂无评论

Bioelectronics for targeted pain management

Nature Reviews Electrical Engineering

引用

Nature Reviews Electrical engineering 2025年 1-18页

作者： Matthew T. Flavin Jose A. Foppiani Angelica H. Alvarez Lacey Foster Haobo Ma Samuel J. Lin Marek A. Paul Dominika Gavlasova John A. Rogers School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA USA Division of Plastic and Reconstructive Surgery Beth Israel Deaconess Medical Center Harvard Medical School Boston MA USA Department of Anesthesiology and Pain Management Beth Israel Deaconess Medical Center Harvard Medical School Boston MA USA Plastic and Reconstructive Surgery Doc Paul Klinika Bytom Poland Jan Dlugosz University Czestochowa Poland Institute of Clinical and Experimental Medicine Prague Czech Republic Querrey-Simpson Institute for Bioelectronics Northwestern University Evanston IL USA Department of Mechanical Engineering Northwestern University Evanston IL USA Department of Biomedical Engineering Northwestern University Evanston IL USA Department of Materials Science and Engineering Northwestern University Evanston IL USA Department of Neurological Surgery Feinberg School of Medicine Northwestern University Chicago IL USA

Pain management in humans is an unresolved problem with substantial medical, societal and economic implications. Traditional strategies such as opioid-based medications are highly effective but pose many long-term risks, including addiction and overdose. In this Review, we discuss these persistent challenges in medical care along with advances in bioelectronics that enable safer and more effective alternative treatments. Emerging approaches leverage wireless embedded networks and machine learning to accurately detect and quantify the symptoms of pain, establishing a foundation for targeted, on-demand treatment. These platforms offer a powerful complement to wearable and implantable neural interfaces that can control these symptoms with unprecedented spatiotemporal and functional selectivity. Now, emotional and cognitive aspects of pain can be addressed through immersive multisensory engagement with systems for augmented and virtual reality. Trends in diagnostic and interventional technologies show how their integration is well suited to addressing some of the most intractable problems in pain management.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Field-driven metamorphoses of isolated skyrmions within the conical state of cubic helimagnets

arXiv

引用

arXiv 2021年

作者： Leonov, Andrey O. Pappas, Catherine Smalyukh, Ivan I. Department of Chemistry Faculty of Science Hiroshima University Kagamiyama Higashi Hiroshima Hiroshima739-8526 Japan Chirality Research Center Hiroshima University Higashi Hiroshima Hiroshima739-8526 Japan IFW Dresden Postfach 270016 DresdenD-01171 Germany Faculty of Applied Sciences Delft University of Technology Mekelweg 15 Delft2629JB Netherlands Soft Materials Research Center and Materials Science and Engineering Program University of Colorado BoulderCO80309 United States Department of Physics Department of Electrical Computer and Energy Engineering University of Colorado BoulderCO80309 United States Renewable and Sustainable Energy Institute National Renewable Energy Laboratory University of Colorado BoulderCO80309 United States

Topologically stable field configurations appear in many fields of physics, from elementary particles to condensed matter and cosmology. Deep physical relations and common physical features of a large variety of very different solitonic states in these systems arise from the mathematical similarity of phenomenological equations. During the last decade, chiral liquid crystals and chiral magnets took on the role of model objects for experimental investigation of topological solitons and understanding of their nonsingular field configurations. This is directly related to the discovery of particle-like chiral skyrmions, which are also considered as promising ingredients for technological applications. Here we introduce a paradigm of facile skyrmionic networks with mutually-orthogonal orientations of constituent isolated skyrmions. On the one hand, such networks are envisioned as a novel concept of spintronic devices based, e.g., on gapless skyrmion motion along each other, and are presumably responsible for precursor phenomena near the ordering temperatures of bulk cubic helimagnets. In particular, we demonstrate an interconversion between mutually orthogonal skyrmions: horizontal skyrmions may swirl into an intermediate spring-like states and subsequently squeeze into vertical skyrmions with both polarities. On the other hand, skyrmion tubes are considered as building blocks for particle-like states with more involved internal structure. A family of target-skyrmions, which includes an overlooked so far type with a multiple topological charge, is formed owing to the tendency to minimize the interaction energy between vertical and horizontal skyrmions. The conical phase serves as a suitable background for considered skyrmion evolution. It substantializes the attracting skyrmion-skyrmion interaction in the skyrmionic networks, shapes their internal structure and guides the nucleation processes. Alternatively, intricate textural changes of isolated skyrmions result not onl

关键词： Solitons

来源：评论

学校读者我要写书评

暂无评论

Correction to “Noise Adaptation Generative Adversarial Network for Medical Image Analysis”

引用

IEEE Transactions on Medical Imaging 2020年第7期39卷 2566-2567页

作者： Tianyang Miller Jun Cheng Huazhu Fu Zaiwang Gu Yuting Xiao Kang Zhou Shenghua Gao Ru Zheng Jiang Liu College of Materials Science and Opto-Electronic Technology University of Chinese Academy of Sciences Beijing China Cixi Institute of Biomedical Engineering Ningbo Institute of Industrial Technology Chinese Academy of Sciences Ningbo China UBTECH Robotics CORP Ltd. Shenzhen China Inception Institute of Artificial Intelligence Abu Dhabi United Arab Emirates Department of Computer Science and Engineering Southern University of Science and Technology Shenzhen China School of Information Science and Technology ShanghaiTech University Shanghai China

In the above article [1] , Tables II , III , and V and Fig. 6 are incorrect. The correct images are provided below:

关键词： Generative adversarial networks biomedical imaging Image analysis Image segmentation biomedical engineering Computer science Image color analysis

来源：评论

学校读者我要写书评

暂无评论

Biomimetic and engineered surfaces for atmospheric water harvesting: Principles, fabrication, and applications

引用

Journal of Environmental Chemical engineering 2025年第5期13卷

作者： Taghreed Abdulhameed Al-Gunaid Nithusha Kallingal Peter Kasak Eman Hussen Preetan Ghosh Aseela Fathima Sara Awad Nidaa Abdelrahman Reem Ahmed Anton Popelka Division of Sustainable Development College of Science and Engineering Hamad Bin Khalifa University Qatar Foundation Doha Qatar Center for Advanced Materials Qatar University P.O. Box 2713 Doha Qatar Biological and Environmental Sciences College of Arts and Sciences Qatar University P.O. Box 2713 Doha Qatar Department of Chemical Engineering Qatar University P.O. Box 2713 Doha Qatar Biomedical Sciences Department College of Health Sciences Qatar University P.O. Box 2713 Doha Qatar

This research paper focuses on a recent review of water harvesting and transport mechanisms on the patterned surfaces inspired by creatures adapted for living in harsh environments with extreme water scarcity, such as the Namib Desert beetle (Stenocara gracilipes). The most notable adaptation of the Namib beetle is its ability to harvest water from fog, which occasionally rolls from the ocean. The beetle's elytra are designed to possess two wettability extremes: small hydrophilic (water-attracting) bumps and large hydrophobic areas, enabling the transportation of collected water. Tiny water droplets are condensed on hydrophilic bumps and rolled down along the beetle's body to its mouthparts, allowing its survival in hostile environments. The beetle's unique approach to collecting water from fog has inspired biomimicry and technological developments in efficient water harvesting in arid regions, such as the use of biomimetic materials to capture and collect water from the atmosphere. This review highlights the fundamental principles of a wettability-driven water harvesting system, focusing on the development of functional bio-mimicking patterned materials inspired by Nature. First, the theoretical aspects of the wetting mechanisms of biomimetic surfaces are outlined. Furthermore, it reviews the practical applications and technical challenges associated with the developed patterned system, comprising water harvesting, anti-icing, oil-water separation, and biosensing technologies. Various technologies for designing bioinspired materials with maximal water collection efficiency are classified and described. Finally, it addresses the development of potential approaches and technological solutions for wettability-patterned systems derived from nature-inspired systems.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Electronic and Magnetic Properties of Topological Semimetal Candidate NdSbTe

arXiv

引用

arXiv 2020年

作者： Pandey, Krishna Basnet, Rabindra Wegner, Aaron Acharya, Gokul Un Nabi, Md Rafique Liu, Jiangwei Wang, Jian Takahashi, Yukiko Da, Bo Hu, Jin Materials Science and Engineering Program Institute for Nanoscience and Engineering University of Arkansas FayettevilleAR72701 United States Department of Physics University of Arkansas FayettevilleAR72701 United States Research Center for Functional Materials National Institute for Materials Science TsukubaIbaraki305-0047 Japan Institute for Materials Research Center for Spintronics Research Network Tohoku University Sendai980-8577 Japan Research Center for Magnetic and Spintronic Materials National Institute for Materials Science Sengen 1-2-1 TsukubaIbaraki305-0047 Japan Research and Services Division of Materials Data and Integrated System National Institute for Materials Science TsukubaIbaraki305-0044 Japan

ZrSiS-type materials represent a large material family with unusual coexistence of topological nonsymmorphic Dirac fermions and nodal-line fermions. As a special group of ZrSiS-family, LnSbTe (Ln = Lanthanide rare earth) compounds provide a unique opportunity to explore new quantum phases due to the intrinsic magnetism induced by Ln. Here we report the single crystal growth and characterization of NdSbTe, a previously unexplored LnSbTe compound. NdSbTe has an antiferromagnetic ground state with field-driven metamagnetic transitions similar to other known LnSbTe, but exhibits distinct enhanced electronic correlations characterized by large a Sommerfeld coefficient of 115 mJ/mol K2, which is the highest among the known LnSbTe compounds. Furthermore, our transport studies have revealed the coupling with magnetism and signatures of Kondo localization. All these findings establish NdSbTe as a new platform for observing novel phenomena arising from the interplay between magnetism, topology, and electron correlations. Copyright © 2020, The Authors. All rights reserved.

关键词： Topology

来源：评论

学校读者我要写书评

暂无评论

Universal digital filtering for denoising volumetric retinal OCT and OCT angiography in 3D shearlet domain

arXiv

引用

arXiv 2019年

作者： Yang, Jianlong Hu, Yan Fang, Liyang Cheng, Jun Liu, Jiang Cixi Institute of Biomedical Engineering Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences China Department of Computer Science and Engineering Southern University of Science and Technology China

Retinal optical coherence tomography (OCT) and OCT angiography (OCTA) suffer from the degeneration of image quality due to speckle noise and bulk-motion noise, respectively. Because the cross-sectional retina has distinct features in OCT and OCTA B-scans, existing digital filters that can denoise OCT efficiently are unable to handle the bulk-motion noise in OCTA. In this Letter, we propose a universal digital filtering approach that is capable of minimizing both types of noise. Considering the retinal capillaries in OCTA are hard to differentiate in B-scans while having distinct curvilinear structures in 3D volumes, we decompose the volumetric OCT and OCTA data with 3D shearlets thus efficiently separate the retinal tissue and vessels from the noise in this transform domain. Compared with wavelets and curvelets, the shearlets provide better representation of the layer edges in OCT and the vasculature in OCTA. Qualitative and quantitative results show the proposed method outperforms the state-of-the-art OCT and OCTA denoising methods. Besides, the superiority of 3D denoising is demonstrated by comparing the 3D shearlet filtering with its 2D counterpart. © 2020 Optical Society of America Copyright © 2019, The Authors. All rights reserved.

关键词： Optical tomography

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：