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engineering the spectra of photon triplets generated from micro/nanofiber

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Chinese Physics B 2024年第3期33卷 408-414页

作者：瞿川郭东琴李笑笑刘振旗赵义张胜海卫正统 The College of Basic Department Information Engineering UniversityZhengzhou 450000China

Quantum light sources are the core resources for photonics-based quantum information *** investigate the spectral engineering of photon triplets generated by third-order spontaneous parametric down-conversion in micro/*** phase mismatching at one-third pump frequency gives rise to non-degenerate photon triplets,the joint spectral intensity of which has an elliptical locus with a fixed eccentricity of√6/***,we propose a frequency-division scheme to separate non-degenerate photon triplets into three channels with high heralding efficiency for the first *** an appropriate pump wavelength can compensate for the fabrication errors of micro/nanofiber and also generate narrowband,non-degenerate photon triplet sources with a high signal-to-noise ***,the long-period micro/nanofiber grating introduces a new controllable degree of freedom to tailor phase matching,resulting from the periodic oscillation of *** this scheme,the wavelength of photon triplets can be flexibly tuned using quasi-phase *** study the generation of photon triplets from this novel perspective of spectrum engineering,and we believe that this work will accelerate the practical implementation of photon triplets in quantum information processing.

关键词： photon triplets micro/nanofiber spectrum engineering

InGaN micro-light-emitting diodes monolithically grown on Si:achieving ultra-stable operation through polarization and strain engineering

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Light(Science & Applications) 2022年第10期11卷 2540-2548页

作者： Yuanpeng Wu Yixin Xiao Ishtiaque Navid Kai Sun Yakshita Malhotra Ping Wang Ding Wang Yuanxiang Xu Ayush Pandey Maddaka Reddeppa Walter Shin Jiangnan Liu Jungwook Min Zetian Mi Department of Electrical engineering and Computer Science University of MichiganAnn ArborMI 48109USA Department of Materials Science and engineering University of MichiganAnn ArborMI 48109USA

micro or submicron scale light-emitting diodes(μLEDs)have been extensively studied recently as the next-generation display *** is desired that μLEDs exhibit high stability and efficiency,submicron pixel size,and potential monolithic integration with Si-based complementary metal-oxide-semiconductor(CMOS)*** such uLEDs,however,has remained a daunting *** polar nature of Ill-nitrides causes severe wavelength/color instability with varying carrier concentrations in the active *** etching-induced surface damages and poor material quality of high indium composition InGaN quantum wells(QWs)severely deteriorate the performance of uLEDs,particularly those emitting in the green/red *** we report,for the first time,μLEDs grown directly on Si with submicron lateral *** μLEDs feature ultra-stable,bright green emission with negligible quantum-confined Stark effect(QCSE).Detailed elemental mapping and numerical calculations show that the QCSE is screened by introducing polarization doping in the active region,which consists of InGaN/AlGaN QWs surrounded by an AlGaN/GaN shell with a negative Al composition gradient along the *** comparison with conventional GaN barriers,AlGaN barriers are shown to effectively compensate for the tensile strain within the active region,which significantly reduces the strain distribution and results in enhanced indium incorporation without compromising the material *** study provides new insights and a viable path for the design,fabrication,and integration of high-performance μLEDs on Si for a broad range of applications in on-chip optical communication and emerging augmented reality/mixed reality devices,and so on.

关键词： polarization diodes strain

Bioprinting of radiopaque constructs for tissue engineering and understanding degradation behavior by use of micro-CT

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Bioactive Materials 2020年第3期5卷 569-576页

作者： Sudipto Datta Shuvodeep Jana Ankita Das Arindam Chakraborty Amit Roy Chowdhury Pallab Datta Centre for Healthcare Science and Technology Indian Institute of Engineering Science and TechnologyShibpurHowrah711103WBIndia Department of Aerospace engineering and Applied Mechanics Indian Institute of Engineering Science and TechnologyShibpurHowrah711103WBIndia Indian Institute of Technology KharagpurWest BengalIndia

Bioprinting has emerged as a potential technique to fabricate tissue engineering constructs and in vitro models directly using living cells as a raw material for fabrication,conforming to the heterogeneity and architectural complexity of the *** several of tissue engineering and in vitro disease modelling or surgical planning applications,it is desirable to have radiopaque constructs for monitoring and *** the present work,enhanced radiopaque constructs are generated by substituting Calcium ions with Barium ions for crosslinking of alginate *** constructs are characterized for their structural integrity and followed by cell culture studies to evaluate their *** was followed by the radiopacity *** radiological images obtained by micro-CT technique was further applied to investigate the degradation behavior of the *** conclusion,it is observed that barium crosslinking can provide a convenient means to obtain radiopaque constructs with potential for multi-faceted applications.

关键词： Bioprinting Radiopaque Barium Degradation Cell viability

engineering Geometric Electrodes for Electric Field-Enhanced High-Performance Flexible In-Plane micro-Supercapacitors

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Energy & Environmental Materials 2023年第4期6卷 114-120页

作者： Jihong Kim Sung Min Wi Jong-Guk Ahn Sangjun Son Hee Young Lim Yeonsu Park Hye Ji Eun Jong Bae Park Hyunseob Lim Sangyeon Pak A-Rang Jang Young-Woo Lee Department of Energy engineering Soonchunhyang UniversityAsan 31538Korea Department of Chemistry Gwangju Institute of Science and TechnologyGwangju 61005Korea Jeonju Centre Korea Basic Science InstituteJeonju 54907Korea Prof.S.Pak School of Electronic and Electrical engineering Hongik UniversitySeoul 04066Korea Division of Electrical Electronic and Control EngineeringKongju National UniversityCheonan 31080Korea

In plane micro-supercapacitors that are miniaturized energy storage components have attracted significant attention due to their high power densities for various ubiquitous and sustainable device systems as well as their facile integration on various flexible/wearable *** implement the micro-supercapacitors in various practical applications that can accompany solid state or gel electrolyte and flexible substrates,ions must be readily transported to electrodes for achieving high power ***,we show large enhancement in electrochemical properties of flexible,inplane micro-supercapacitor using sharp-edged interdigitated electrode design,which was simply fabricated through direct laser scribing *** sharp-edged electrodes allowed strong electric field to be induced at the corners of the electrode fingers which led to the greater accumulation of ions near the surface of electrode,significantly enhancing the energy storage performance of *** electric field-enhanced in-plane micro-supercapacitor showed the volumetric energy density of 1.52 Wh L^(−1)and the excellent cyclability with capacitive retention of 95.4%after 20000 *** further showed various practicability of our sharp-edged design in micro-supercapacitors by showing circuit applicability,mechanical stability,and air *** results present an important pathway for designing electrodes in various energy storage devices.

关键词： electric field enhancement flexible energy storage device microsupercapacitors sharp electrodes

A Review of Nano/micro/Milli Needles Fabrications for Biomedical engineering

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Chinese Journal of Mechanical engineering 2022年第3期35卷 51-79页

作者： Bin Liu Xin Yi Ying Zheng Zhishan Yuan Jingbo Yang Jian Yang Xiao Yu Lelun Jiang Chengyong Wang Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments School of Biomedical EngineeringShenzhen Campus of Sun Yatsen UniversityShenzhen 518107China Guangdong Provincial Key Laboratory of Minimally Invasive Surgical Instruments and Manufacturing Technology School of Electromechanical EngineeringGuangdong University of TechnologyGuangzhou 510006China

Needles,as some of the most widely used medical devices,have been effectively applied in human disease prevention,diagnosis,treatment,and *** 1D needle can easily penetrate cells/organs by generating highly localized stress with their sharp tips to achieve bioliquid sampling,biosensing,drug delivery,surgery,and other such *** this review,we provide an overview of multiscale needle fabrication techniques and their biomedical *** are classified as nanoneedles,microneedles and millineedles based on the needle diameter,and their fabrication techniques are *** bridge the inside and outside of cells,achieving intracellular electrical recording,biochemical sensing,and drug *** penetrate the stratum corneum layer to detect biomarkers/bioelectricity in interstitial fluid and deliver drugs through the skin into the human circulatory ***,including puncture,syringe,acupuncture and suture needles,are ***,conclusions and future perspectives for next-generation nano/micro/milli needles are discussed.

关键词： Nanoneedles microneedles Millineedles Fabrication methods Biomedical engineering

A Review on Thermal Management of Li-ion Battery:from Small-Scale Battery Module to Large-Scale Electrochemical Energy Storage Power Station

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Journal of Thermal Science 2025年第1期 1-23页

作者： CHEN Zhifeng JIA Li YIN Liaofei DANG Chao REN Honglei ZHANG Zhiqiang Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in micro and Small Scale School of MechanicalElectronic and Control EngineeringBeijing Jiaotong University

Li-ion battery is an essential component and energy storage unit for the evolution of electric vehicles and energy storage technology in the ***,in order to cope with the temperature sensitivity of Li-ion battery and maintain Li-ion battery safe operation,it is of great necessary to adopt an appropriate battery thermal management system(BTMS).In this paper,the current main BTM strategies and research hotspots were discussed from two aspects:small-scale battery module and large-scale electrochemical energy storage power station(EESPS).The practical application situation,advantages and disadvantages,and the future development trend of each heat dissipation method(air,liquid,PCM,heat pipe,hybrid cooling) were described in *** them,the air cooling and liquid cooling were reviewed in-depth based on the engineering *** PCM,heat pipe and hybrid cooling were reviewed extensively based on the latest *** research provides a comprehensive understanding for the BTMS in all scales.

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micro and Nanofabrication methods to control cell-substrate interactions and cell behavior: A review from the tissue engineering perspective

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Bioactive Materials 2018年第3期3卷 355-369页

作者： Menekse Ermis Ezgi Antmen Vasif Hasirci BIOMATEN Middle East Technical University(METU)Center of Excellence in Biomaterials and Tissue EngineeringAnkaraTurkey METU Department of Biomedical EngineeringAnkaraTurkey METU Department of BiotechnologyAnkaraTurkey METU Department of Biological SciencesAnkaraTurkey

Cell-substrate interactions play a crucial role in the design of better biomaterials and integration ofimplants with the tissues. Adhesion is the binding process of the cells to the substrate through interactionsbetween the surface molecules of the cell membrane and the substrate. There are severalfactors that affect cell adhesion including substrate surface chemistry, topography, and stiffness. Thesefactors physically and chemically guide and influence the adhesion strength, spreading, shape and fate ofthe cell. Recently, technological advances enabled us to precisely engineer the geometry and chemistry ofsubstrate surfaces enabling the control of the interaction cells with the substrate. Some of the mostcommonly used surface engineering methods for eliciting the desired cellular responses on biomaterialsare photolithography, electron beam lithography, microcontact printing, and microfluidics. Thesemethods allow production of nano- and micron level substrate features that can control cell adhesion,migration, differentiation, shape of the cells and the nuclei as well as measurement of the forces involvedin such activities. This review aims to summarize the current techniques and associate these techniqueswith cellular responses in order to emphasize the effect of chemistry, dimensions, density and design ofsurface patterns on cell-substrate interactions. We conclude with future projections in the field of cellsubstrateinteractions in the hope of providing an outlook for the future studies.

关键词： microfabrication micropattern Cell-material interaction Differentiation Cell adhesion

Fabrication and Applications of micro/Nanostructured Devices for Tissue engineering

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Nano-micro Letters 2017年第1期9卷 1-13页

作者： Tania Limongi Luca Tirinato Francesca Pagliari Andrea Giugni Marco Allione Gerardo Perozziello Patrizio Candeloro Enzo Di Fabrizio SMILEs Lab Physical Science and Engineering(PSE)and Biological and Environmental Sciences and Engineering(BESE)DivisionsKing Abdullah University of Science and TechnologyThuwal 23955-6900Kingdom of Saudi Arabia Department of Biological and Environmental Sciences and engineering(BESE) King Abdullah University of Science and TechnologyThuwal 23955-6900Kingdom of Saudi Arabia Laboratory of Nanotechnology BioNEM Department of Experimental and Clinical MedicineUniversity"Magna Graecia"of CatanzaroViale Europa-Loc.Germaneto88100 CatanzaroItaly

Nanotechnology allows the realization of new materials and devices with basic structural unit in the range of1–100 nm and characterized by gaining control at the atomic, molecular, and supramolecular level. Reducing the dimensions of a material into the nanoscale range usually results in the change of its physiochemical properties such as reactivity,crystallinity, and solubility. This review treats the convergence of last research news at the interface of nanostructured biomaterials and tissue engineering for emerging biomedical technologies such as scaffolding and tissue regeneration. The present review is organized into three main sections. The introduction concerns an overview of the increasing utility of nanostructured materials in the field of tissue engineering. It elucidates how nanotechnology, by working in the submicron length scale, assures the realization of a biocompatible interface that is able to reproduce the physiological cell–matrix interaction. The second, more technical section, concerns the design and fabrication of biocompatible surface characterized by micro- and submicroscale features, using microfabrication, nanolithography, and miscellaneous nanolithographic *** the last part, we review the ongoing tissue engineering application of nanostructured materials and scaffolds in different fields such as neurology, cardiology, orthopedics, and skin tissue regeneration.

关键词： Nanomaterials Nanostructures microfabrication Nanofabrication Device Tissue engineering

Nanofiber–microsphere (nano-micro) matrices for bone regenerative engineering: a convergence approach toward matrix design

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Regenerative Biomaterials 2014年第1期1卷 3-9页

作者： Clarke Nelson Yusuf Khan Cato T.Laurencin Raymond and Beverly Sackler Center for Biomedical BiologicalPhysical and Engineering SciencesInstitute for Regenerative EngineeringUniversity of Connecticut Health CenterFarmingtonCT 06030USA Department of Orthopaedic Surgery University of Connecticut Health CenterFarmingtonCT 06030USA Department of Materials Science and engineering University of ConnecticutStorrsCT 06269USA Department of Chemical and Biomolecular engineering University of ConnecticutStorrsCT 06269USA

Bone is an essential organ for health and quality of *** to current shortfalls in therapy for bone tissue engineering,scientists have sought the application of synthetic materials as bone graft *** a composite organic/inorganic material with significant extra cellular matrix(ECM),one way to improve bone graft substitutes may be to engineer a synthetic matrix that is influenced by the physical appearance of natural ECM *** this work,the authors evaluate composite,hybrid scaffolds for bone tissue engineering based on composite ceramic/polymer microsphere scaffolds with synthetic ECM-mimetic networks in their pore *** thermally induced phase separation,nanoscale fibers were deposited in the pore spaces of structurally sound microsphere-based scaffold with a density proportionate to the initial polymer *** and mechanical testing indicated no significant changes in overall pore characteristics or mechanical integrity as a result of the fiber deposition *** scaffolds displayed adequate mechanical integrity on the scale of human trabecular bone and supported the adhesion and proliferation of cultured mouse calvarial *** from natural cues,these scaffolds may represent a new avenue forward for advanced bone tissue engineering scaffolds.

关键词： nanobiomaterials bioceramics medical device bone