检索结果-内蒙古大学图书馆

Breaking piezoelectric limits of molecules for biodegradable implants

BMEMat(biomedical engineering Materials) 2024年第2期2卷 1-3页

作者： Jianhua Hao Nik Ahmad Nizam Nik Malek Wan Hairul Anuar Kamaruddin Jianhua Li Department of Applied Physics Department of Biomedical Engineeringand Research Centre for Nanoscience and NanotechnologyThe Hong Kong Polytechnic UniversityHong KongChina Centre for Sustainable Nanomaterials Universiti Teknologi MalaysiaJohor BahruMalaysia Department of Biosciences Faculty of ScienceUniversiti Teknologi MalaysiaJohor BahruMalaysia Laboratories Center&Physics Department PPMUUniversiti Teknologi MalaysiaJohor BahruMalaysia Department of Biomaterials School and Hospital of StomatologyCheeloo College of MedicineShandong UniversityJinanChina

In the quest for optimizing biodegradable implants,the exploration of piezoelectric materials stands at the forefront of biomedical engineering *** piezoelectric materials often suffer from limitations in biocompatibility and biodegradability,significantly impeding their in vivo study and further biomedical *** leveraging molecular engineering and structural design,a recent innovative approach transcends the conventional piezoelectric limits of the molecules designed for biodegradable *** biodegradable molecular piezoelectric implants may open new avenues for their applications in bioenergy harvesting/sensing,implanted electronics,transient medical devices and tissue regeneration.

关键词： biodegradable implants molecular ferroelectric piezoelectric biosensors self-powered electronics transient bioelectronics

来源：评论

学校读者我要写书评

暂无评论

Synergetic effects of multiple junction and surface hydroxyl in Cu/CuO/Cu2O/TiO2 heterostructures towards highly efficient photocatalysts for hydrogen generation

引用

Materials Science for Energy Technologies 2025年 8卷 131-142页

作者： Subagyo, Riki Anindika, Garcelina Rizky Aufkani, Afif Akmal Zhang, Lei Ardhyananta, Hosta Burhan, R.Y. Perry Nugraheni, Zjahra Vianita Akhlus, Syafsir Bahruji, Hasliza Prasetyoko, Didik Wellia, Diana Vanda Ivansyah, Atthar Luqman Arramel Kusumawati, Yuly Department of Chemistry Faculty of Science and Analytic Data Institut Teknologi Sepuluh Nopember Surabaya60111 Indonesia Center of Excellence Applied Physics and Chemistry Nano Center Indonesia Jl PUSPIPTEK South Tangerang Banten15314 Indonesia Department of Physics National University of Singapore Singapore117551 Singapore Department of Materials and Metallurgical Engineering Faculty of Industrial Technology and Systems Engineering Institut Teknologi Sepuluh Nopember Surabaya60111 Indonesia Centre of Advanced Material and Energy Science Universiti Brunei Darussalam Jalan Tungku Link BE 1410 Brunei Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Andalas Padang25163 Indonesia Master Program in Computational Science Faculty of Mathematics and Natural Science Institut Teknologi Bandung Jalan Ganesha No. 10 Bandung40132 Indonesia Instrumentation and Computational Physics Research Group Department of Physics Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung Jalan Ganesha No.10 West Java Bandung40132 Indonesia

The implementation of titanium dioxide (TiO2) as a photocatalyst material in hydrogen (H2) evolution reaction (HER) has embarked renewed interest in the past decade. Rapid electron-hole pairs recombination and wide band gap of a photo-sensitive material of TiO2 are detrimental toward the targeted catalytical reaction. In this study, we present the rational design, fabrication, photocatalytic performance of TiO2-Cu/CuO/Cu2O heterostructures (CuTi) using viable chemical reduction method. The Z-scheme and S-scheme are succesfully generated across the TiO2/CuO/Cu2O interfaces, while the Schottky junction arises on the Cu perimeters. This is evidenced from the blue shifted about 0.3 eV of Cu 2p core level determined by using X-ray photoemission spectroscopy (XPS), in combination with the formation of inverse V-shape of the Mott-Schottky plots. In addition, we find that Cu/CuO/Cu2O facilitates photon absorption range up to the visible region. The multiple heterojunction and the large number of OHsurface enhanced charge carrier transfer are associated to the suppression of photoluminescence (PL) intensity, high surface hydroxyl (OHsurface) density in CuTi probed by XPS, and fast electron transfer based on the electrochemical measurements. The presence of OHsurface inhibits the recombination of electron. A significant H2 photogeneration rate enhancement is achieved when an optimized 5 wt% Cu/CuO/Cu2O concentration is used on TiO2 to achieve 7,157.19 μmol·g−1 (1,789.30 μmol·g−1·h−1). Based on this finding, zero emission energy innitiative could be materialized under multiple heterojunctions in photocatalytic process is beneficial for enhancing the H2 production. © 2025 The Authors

关键词： Titanium dioxide

来源：评论

学校读者我要写书评

暂无评论

Super-Mossian Dielectrics for Nanophotonics

Super-Mossian Dielectrics for Nanophotonics

引用

2023 Conference on Lasers and Electro-Optics, CLEO 2023

作者： Wang, Xielin Doiron, Chloe F. Li, Zhichao Khurgin, Jacob B. Naik, Gururaj V. Applied Physics Graduate Program Smalley-Curl Institute Rice University HoustonTX77005 United States Department of Electrical and Computer Engineering Johns Hopkins University BaltimoreMD21218 United States Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States

Searching for high-index dielectrics, we identify materials that break the index upper bound set by Moss' rule. We highlight the promise of such super-Mossian materials by demonstrating nanophotonic devices made o... 详细信息

ISBN: (纸本)9781957171258

关键词： Layered semiconductors

来源：评论

学校读者我要写书评

暂无评论

The Method of Applying Machine Vision in the Concept of 'Smart Oil Storage' 4

The Method of Applying Machine Vision in the Concept of 'Sma...

引用

4th International Conference on Control Systems, Mathematical Modeling, Automation and Energy Efficiency, SUMMA 2022

作者： Levin, Maksim Levina, Ekaterina Nagornov, Stanislav Levina, Lyubov Kovalenko, Irina Lipetsk State Technical University Department of Physics and Biomedical Engineering Lipetsk Russia Bauman Moscow State Technical University Department of Physics Moscow Russia FGBNU VNIITiN Tambov Russia Lipetsk State Technical University Department of Applied Mathematics Lipetsk Russia

ISBN: (数字)9781665456593

ISBN: (纸本)9781665456593

The use of intelligent systems during the oil storage and handling process enhances quality preservation and reduction of motor fuel waste caused by evaporation, oxidation and hydration while stored in above-ground horizontal steel tanks. Systems managing 'smart' oil-storage facilities combine technologies for on-line collection, transmission and storage of information with instant data processing and analysis, and managerial decision-making techniques. The concept and developed digital intelligent control solutions for oil storage allows combining data in oil management into a single information space, and to control the automated oil storage system with application of neural networks, deep learning and Big Data. Machine (computer) based vision is a fairly young and rapidly developing field of scientific and applied research, the main purpose of which is to build systems capable of 'seeing', that is, extracting information about world objects from images, which is valuable for further use within any application and its nest step of progressing 'smart' oil-storage. At the same time, the processing of video information is carried out on universal or specialized computers. The formation of algorithms and practical methods of applying machine vision in the concept of smart oil storage will significantly increase the autonomy of intelligent algorithms for farm takers management and ensure its safe operation. © 2022 IEEE.

关键词： Computer vision

来源：评论

学校读者我要写书评

暂无评论

Artificial touch feedback using microstimulation of human somatosensory cortex to convey grip force from a robotic hand 46

Artificial touch feedback using microstimulation of human so...

引用

46th Annual International Conference of the IEEE engineering in Medicine and Biology Society, EMBC 2024

作者： Osborn, Luke E. Christie, Breanne McMullen, David P. Thomas, Tessy M. Thompson, Margaret C. Nickl, Robert W. Pawar, Ambarish S. Wester, Brock A. Cantarero, Gabriela L. Celnik, Pablo A. Crone, Nathan E. Fifer, Matthew S. Tenore, Francesco V. Johns Hopkins University Applied Physics Laboratory United States National Institutes of Health National Institute of Mental Health United States Johns Hopkins University Department of Biomedical Engineering United States Johns Hopkins University School of Medicine Department of Physical Medicine and Rehabilitation United States Johns Hopkins University School of Medicine Department of Neurology United States

ISBN: (纸本)9798350371499

Invasive brain-machine interfaces can help restore function through the control of external devices while the addition of intracortical microstimulation (ICMS) can elicit sensations of touch and help provide further benefits for individuals living with sensorimotor deficits. However, the extent of tactile information that can be conveyed through ICMS has not been fully explored. In a human participant with spinal cord injury and chronically implanted microelectrode arrays, we used ICMS to the somatosensory cortex to provide grip force feedback in the hands during grasping of objects with varying stiffness with a robotic arm. Using only ICMS-evoked touch sensations, the participant was able to identify between two and three objects with an accuracy of 92% and 67%, respectively. In a compliant grasping task with the goal of grasping a delicate object without crushing it, objects were deformed on average only 2.8 mm with ICMS-based touch feedback compared to 8.7 mm without. These results demonstrate that ICMS-evoked touch sensations to the hands can be used to provide force-based feedback for perceiving object properties and enable more precise grasping during closed-loop control of a robotic limb through a cortical interface. © 2024 IEEE.

关键词： Robotic arms

来源：评论

学校读者我要写书评

暂无评论

Surrogate distributed radiological sources III: quantitative distributed source reconstructions

arXiv

引用

arXiv 2024年

作者： Vavrek, Jayson R. Lee, Jaewon Salathe, Marco Bandstra, Mark S. Hellfeld, Daniel Quiter, Brian J. Joshi, Tenzing H.Y. Applied Nuclear Physics program Lawrence Berkeley National Laboratory United States Department of Nuclear Engineering UC Berkeley United States

In this third part of a multi-paper series, we present quantitative image reconstruction results from aerial measurements of eight different surrogate distributed gammaray sources on flat terrain. We show that our quantitative imaging methods can accurately reconstruct the expected shapes, and, after appropriate calibration, the absolute activity of the distributed sources. We conduct several studies of imaging performance versus various measurement and reconstruction parameters, including detector altitude and raster pass spacing, data and modeling fidelity, and regularization type and strength. The imaging quality performance is quantified using various quantitative image quality metrics. Our results confirm the utility of point source arrays as surrogates for truly distributed radiological sources, advancing the quantitative capabilities of Scene Data Fusion gamma-ray imaging methods. Copyright © 2024, The Authors. All rights reserved.

关键词： Data fusion

来源：评论

学校读者我要写书评

暂无评论

Enhanced Light-Matter Interactions for a Single T Center in a Silicon Nanocavity

Enhanced Light-Matter Interactions for a Single T Center in ...

引用

CLEO: Fundamental Science, CLEO:FS 2024 - Part of Conference on Lasers and Electro-Optics, CLEO 2024

作者： Wong, Yu-En Johnston, Adam Felix-Rendon, Ulises Chen, Songtao Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States Applied Physics Graduate Program Smalley-Curl Institute Rice University HoustonTX77005 United States Smalley-Curl Institute Rice University HoustonTX77005 United States

We investigate light-matter interactions for a single T center coupled to a silicon photonic crystal cavity. By solving Lindblad master equation, we extract the cavity-QED parameters for the coupled system. © Opt... 详细信息

ISBN: (纸本)9781957171395

关键词： Silicon photonics

来源：评论

学校读者我要写书评

暂无评论

Purcell Enhancement of a Single T Center Coupled to a Silicon Nanophotonic Cavity

Purcell Enhancement of a Single T Center Coupled to a Silico...

引用

CLEO: Fundamental Science, CLEO:FS 2024 - Part of Conference on Lasers and Electro-Optics, CLEO 2024

作者： Felix-Rendon, Ulises Johnston, Adam Wong, Yu-En Chen, Songtao Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States Applied Physics Graduate Program Smalley-Curl Institute Rice University HoustonTX77005 United States Smalley-Curl Institute Rice University HoustonTX77005 United States

We demonstrate Purcell enhancement of a single T center integrated in a silicon photonic crystal cavity, increasing the fluorescence decay rate by a factor of 6.89 and achieving a photon outcoupling rate of 73.3 kHz. ... 详细信息

ISBN: (纸本)9781957171395

关键词： Silicon photonics

来源：评论

学校读者我要写书评

暂无评论

Two-Dimensional Magnetic Exciton Polariton with Strongly Coupled Atomic and Photonic Anisotropies

引用

Physical Review Letters 2024年第26期133卷 266901-266901页

作者： Qiuyang Li Xin Xie Adam Alfrey Christiano W. Beach Nicholas McLellan Yang Lu Jiaqi Hu Wenhao Liu Nikhil Dhale Department of Physics University of Michigan Ann Arbor Michigan 48109 USA Applied Physics Program University of Michigan Ann Arbor Michigan 48109 USA Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor Michigan 48109 USA Department of Physics The University of Texas at Dallas Richardson Texas 75080 USA

Anisotropy is a fundamental property of both material and photonic systems. The interplay between material and photonic anisotropies, however, has hardly been explored due to the vastly different length scales. Here we demonstrate exciton polaritons in a 2D antiferromagnet, CrSBr, coupled with an anisotropic photonic crystal cavity, where the spin, atomic, and photonic anisotropies are strongly correlated. Atomic anisotropy led to exceptionally strong coupling between anisotropic exciton and optical modes, which are stable against excitation densities a few orders of magnitude higher than polaritons in isotropic materials. The resulting polaritons feature anisotropic polarizations determined by the interplay of not only the anisotropies but also the dissipations and coupling of both exciton and photon modes, tunable by tens of degrees via many parameters. The work provides insights of excitons in CrSBr and demonstrates a prototype where atomic- and photonic-scale orders strongly couple, giving rise to unconventional properties in quantum materials and photonic devices.

关键词： Atoms

来源：评论

学校读者我要写书评

暂无评论

A biomimetic upconversion nanoreactors for near-infrared driven H2 release to inhibit tauopathy in Alzheimer’s disease therapy

引用

Bioactive Materials 2024年第12期42卷 165-177页

作者： Qin Zhang Chuanqi Li Bohan Yin Jiaxiang Yan Yutian Gu Yingying Huang Jiareng Chen Xinyue Lao Jianhua Hao Changqing Yi Yi Zhou James Chung Wai Cheung Siu Hong Dexter Wong Mo Yang School of Medicine and Pharmacy Ocean University of ChinaQingdao266003ChinaLaboratory for Marine Drugs and Bioproducts Qingdao Marine Science and Technology CenterQingdao266237China Department of Biomedical Engineering The Hong Kong Polytechnic University999077Hong KongChina The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen518000China Research Center for Nanoscience and Nanotechnology The Hong Kong Polytechnic UniversityKowloon999077Hong KongChina Joint Research Center of Biosensing and Precision Theranostics The Hong Kong Polytechnic UniversityKowloon999077Hong KongChina Department of Applied Physics The Hong Kong Polytechnic University999077Hong KongChina Key Laboratory of Sensing Technology and Biomedical Instruments(Guangdong Province) School of Biomedical EngineeringSun Yat-Sen UniversityGuangzhou510000China Zhongshan School of Medicine Sun Yat-sen UniversityGuangzhou510080China

Abnormal hyperphosphorylation of tau protein is a principal pathological hallmark in the onset of neurodegenerative disorders,such as Alzheimer’s disease(AD),which can be induced by an excess of reactive oxygen species(ROS).As an antioxidant,hydrogen gas(H_(2))has the potential to mitigate AD by scavenging highly harmful ROS such as·***,conventional administration methods of H_(2) face significant challenges in controlling H_(2) release on demand and fail to achieve effective accumulation at lesion ***,we report artificial nanoreactors that mimic natural photosynthesis to realize near-infrared(NIR)light-driven photocatalytic H_(2) evolution in *** nanoreactors are constructed by biocompatible crosslinked vesicles(CVs)encapsulating ascorbic acid and two photosensitizers,chlorophyll a(Chla)and indoline dye(Ind).In addition,platinum nanoparticles(Pt NPs)serve as photocatalysts and upconversion nanoparticles(UCNP)act as light-harvesting antennas in the nanoreacting system,and both attach to the surface of *** NIR irradiation,the nanoreactors release H_(2) in situ to scavenge local excess ROS and attenuate tau hyperphosphorylation in the AD mice *** NIR-triggered nanoreactors provide a proof-of-concept design for the great potential of hydrogen therapy against AD.

关键词： Artificial photosynthesis Hydrogen therapy Oxidative stress Tau hyperphosphorylation Alzheimer’s disease

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：