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21st International Conference on Miniaturized Systems for Chemistry and Life sciences, MicroTAS 2017

作者： Yoon, J. Kim, Y.K. Jung, Y.G. Park, W. Department of Electronic Engineering Kyung Hee University Korea Republic of Interdisciplinary Program of Biomodulation College of Natural Science Korea Republic of Center for Nutraceutical and Pharmaceutical Materials Myongji University Korea Republic of Myongji Bioefficiency Research Centre Korea Republic of

ISBN: (纸本)9780692941836

We present a convenient technique to shorten the required time for testing minimum antibiotic concentration at which bacteria stops growth and to monitor the bacteria that matures in any form through single-cell morphological analysis that can determine antimicrobial susceptibility by analyzing morphological changes in single bacterial cell automatically trapped in a narrow space. We trapped single bacterial cell in specific space and observed the growth of several types of bacteria with environment of antibiotics. Additionally, we could confirm that the minimum inhibitory concentrations obtained through the attempts matched in the Clinical Laboratory Standard Institute quality control range. © 17CBMS-0001.

关键词： Morphology

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Mid-wave to near-IR optoelectronic properties and epsilon-near-zero behavior in indium-doped cadmium oxide

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Physical Review materials 2021年第3期5卷 035202-035202页

作者： Angela Cleri John Tomko Kathleen Quiambao-Tomko Mario V. Imperatore Yanglin Zhu J. Ryan Nolen Joshua Nordlander Joshua D. Caldwell Zhiqiang Mao Noel C. Giebink Kyle P. Kelley Evan L. Runnerstrom Patrick E. Hopkins Jon-Paul Maria Penn State University Department of Materials Science and Engineering University Park Pennsylvania 16802 USA University of Virginia Department of Materials Science and Engineering Charlottesville Virginia 22904 USA Penn State University Department of Electrical Engineering University Park Pennsylvania 16802 USA Penn State University Department of Physics University Park Pennsylvania 16802 USA Vanderbilt University Interdisciplinary Materials Science Program Nashville Tennessee 37235 USA Oak Ridge National Laboratory Center for Nanophase Materials Science Oak Ridge Tennessee 37830 USA Army Research Office DEVCOM US Army Research Laboratory Research Triangle Park North Carolina 27709 USA University of Virginia Department of Mechanical and Aerospace Engineering Charlottesville Virginia 22904 USA University of Virginia Department of Physics Charlottesville Virginia 22904 USA

Indium-doped cadmium oxide (In:CdO) thin films exhibit tunable epsilon-near-zero (ENZ) modal frequencies across a wide spectral range, bridging the mid-wave and near-infrared (IR). In:CdO thin films are prepared by reactive cosputtering from metallic Cd and In targets using high-power impulse magnetron sputtering (HiPIMS) and radio frequency sputtering, respectively. Using this approach, CdO thin films with carrier concentrations ranging from 2.3×1019 to 4.0×1020cm–3 and mobilities ranging from 300 to 400cm2/Vs are readily achieved. UV-VIS absorption spectra are used to measure optical bandgap, revealing a Burstein-Moss shift of 0.58 eV across the doping range investigated. Optical measurements demonstrate the tunability of near-perfect plasmonic ENZ absorption across the mid-wave and into the near-IR spectral ranges by controlling the carrier concentration through doping, while tuning the film thickness for impedance matching. In comparison to other dopants that can be introduced to HiPIMS-deposited CdO, In offers the largest range of carrier concentrations while maintaining high mobility, thus allowing for the widest accessibility of the IR spectrum of a single plasmonic material grown by sputtering.

关键词： Plasmonics Reflectivity X-ray diffraction

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Multifunctional metaoptics based on bilayer metasurfaces

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Light(science & Applications) 2019年第1期8卷 466-474页

作者： You Zhou Ivan I.Kravchenko Hao Wang Hanyu Zheng Gong Gu Jason Valentine Interdisciplinary Materials Science Program Vanderbilt UniversityNashvilleTN 37212USA Center for Nanophase Materials Sciences Oak Ridge National LaboratoryOak RidgeTN 37831USA Min H.Kao Department of Electrical Engineering and Computer Science University of TennesseeKnoxvilleTN 37996USA Department of Electric Engineering and Computer Science Vanderbilt UniversityNashvilleTN 37212USA Department of Mechanical Engineering Vanderbilt UniversityNashvilleTN 37212USA

Optical metasurfaces have become versatile platforms for manipulating the phase,amplitude,and polarization of light.A platform for achieving independent control over each of these properties,however,remains elusive due to the limited engineering space available when using a single-layer *** instance,multiwavelength metasurfaces suffer from performance limitations due to space filling constraints,while control over phase and amplitude can be achieved,but only for a single ***,we explore bilayer dielectric metasurfaces to expand the design space for *** ability to independently control the geometry and function of each layer enables the development of multifunctional metaoptics in which two or more optical properties are independently *** a proof of concept,we demonstrate multiwavelength holograms,multiwavelength waveplates,and polarization-insensitive 3D holograms based on phase and amplitude *** proposed architecture opens a new avenue for designing complex flat optics with a wide variety of functionalities.

关键词： surface. optics independently

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Near-Unity Emitting, Widely Tailorable and Stable Exciton Concentrators Built from Doubly Gradient 2D Semiconductor Nanoplatelets

arXiv

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arXiv 2023年

作者： Liang, Xiao Durmusoglu, Emek G. Lunina, Maria Hernandez-Martinez, Pedro Ludwig Valuckas, Vytautas Yan, Fei Lekina, Yulia Sharma, Vijay Kumar Yin, Tingting Ha, Son Tung Shen, Ze Xiang Sun, Handong Kuznetsov, Arseniy Demir, Hilmi Volkan LUMINOUS Center of Excellence for Semiconductor Lighting and Displays The Photonics Institute School of Electrical and Electronic Engineering Nanyang Technological University Singapore639798 Singapore Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore637371 Singapore Interdisciplinary Graduate Program Nanyang Technological University Singapore637371 Singapore 2 Fusionopolis Way #08-03 Innovis 138634 Singapore UNAM-Institute of Materials Science and Nanotechnology The National Nanotechnology Research Center Department of Electrical and Electronics Engineering Department of Physics Bilkent University Bilkent Ankara06800 Turkey

The strength of electrostatic interactions (EI) between electrons and holes within semiconductor nanocrystals profoundly impact the performance of their optoelectronic systems, and different optoelectronic devices demand distinct EI strength of the active medium. However, achieving a broad range, fine-tuning of the EI strength for specific optoelectronic applications is a daunting challenge, especially in quasi 2-dimensional core-shell semiconductor nanoplatelets (NPLs), as the epitaxial growth of the inorganic shell along the direction of the thickness that solely contributes to the quantum confined effect significantly undermines the strength of the EI. Herein we propose and demonstrate a novel doubly-gradient (DG) core-shell architecture of semiconductor NPLs for on-demand tailoring of the EI strength by controlling the localized exciton concentration via in-plane architectural modulation, demonstrated by a wide tuning of radiative recombination rate and exciton binding energy. Moreover, these exciton-concentration-engineered DG NPLs also exhibit a near-unity quantum yield, remarkable thermal and photo stability, as well as considerably suppressed self-absorption. As proof-of-concept demonstrations, highly efficient color converters and high-performance light-emitting diodes (external quantum efficiency: 16.9%, maximum luminance: 43, 000 cd/m2) have been achieved based on the DG NPLs. This work thus opens up new avenues for developing high-performance colloidal optoelectronic device applications. Copyright © 2023, The Authors. All rights reserved.

关键词： Quantum yield

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Electrically tunable helicity of cholesteric heliconical superstructure [Invited]

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Chinese Optics Letters 2020年第8期18卷 22-27页

作者： Conglong Yuan Wenbin Huang Xiaoqian Wang Dong Shen Zhigang Zheng Department of Physics East China University of Science and TechnologyShanghai 200237China School of Optoelectronic Science and Engineering&Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow UniversitySuzhou 215006China Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary Program Kent State UniversityKentOhio 44242USA

The dynamic manipulation of the helicity in a cholesteric helical superstructure could enable precise control over its physical and chemical properties, thus opening numerous possibilities for exploring multifunctional *** cholesteric material satisfies the sufficiently small bending elastic effect, an electrically induced deformation named the cholesteric heliconical superstructure is formed. Through theoretical and numerical analysis, we systematically studied the tunable helicity of the heliconical superstructure, including the evolution of the corresponding oblique angle and pitch length. To further confirm the optical properties, Berreman’s 4 × 4 matrix method was employed to numerically analyze the corresponding structure reflection under the dual stimuli of chirality and electric field.

关键词： cholesteric liquid crystal heliconical superstructure tunable reflection band electro-optical materials

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Manipulation of the nanoscale heliconical structure of a twist-bend nematic material with polarized light

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Physical Review Research 2020年第3期2卷 032004(R)-032004(R)页

作者： C. Feng J. Feng R. Saha Y. Arakawa J. Gleeson S. Sprunt C. Zhu A. Jákli Chemical Physics Interdisciplinary Program Advanced Materials and Liquid Crystal Institute Kent State University Kent Ohio 44242 USA Advanced Light Source Lawrence Berkeley National Lab Berkeley California 94720 USA Department of Physics Kent State University Kent Ohio 44242 USA Department of Applied Chemistry and Life Science Graduate School of Engineering Toyohashi University of Technology Toyohashi 441-8580 Japan

The effect of polarized violet light on the alignment and the heliconical pitch of a liquid crystal dimer containing both sulfur atoms and an azo linkage has been studied by tender resonant x-ray scattering. The results provide evidence of the manipulation of the nanoscale heliconical structure by polarized light. In addition to the bulk alignment of the heliconical nanostructure, the value of the heliconical pitch can be varied as well. After turning the light on, an increase of the pitch is observed in two steps. The increase with a subsecond timescale is attributed to the reduced heliconical order related to trans-cis photoisomerization. This is followed by a smaller increase over a 10-s timescale, which is likely related to the annihilation of defects. After turning the light off, the pitch first decreases within a few seconds to a value larger than the original (before illumination), and then relaxes further on a much longer (hours) timescale.

关键词： Chiral symmetry Dynamical phase transitions Twist deformation

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Pioneering bone regeneration: A review of cutting-edge scaffolds in tissue engineering

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Bioprinting 2024年 43卷

作者： Alex, Y. Vincent, Sumi Divakaran, Nidhin Uthappa, U.T. Srinivasan, Parthasarathy Mubarak, Suhail Al-Harthi, Mamdouh Ahmed Dhamodharan, Duraisami School for Advanced Research in Petrochemicals: Laboratory for Advanced Research in Polymeric Materials (LARPM) Central Institute of Petrochemicals Engineering and Technology (CIPET) Bhubaneswar 751024 India Mechanical Engineering Program Physical Sciences and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia Mechanics of Composites for Energy and Mobility Laboratory King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia College of Chemistry and Environmental Engineering Shenzhen University Shenzhen 518055 China Department of Electronics and Communication Engineering Amrita School of Engineering Amrita Vishwa Vidyapeetham Tamil Nadu Chennai 601103 India Research Institute of Humanities and Social Sciences University of Sharjah Sharjah 27272 United Arab Emirates Interdisciplinary Research Center for Refining and Advanced Chemicals King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia Department of Chemical Engineering King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia

Bone tissue engineering (BTE) is aims to develop advanced strategies to regenerate damaged or diseased bone, through the integration of principles from cellular biology, biomaterials science, and engineering. The vital aspect of these studies includes the design and fabrication of scaffolds that support cell adhesion, proliferation, and differentiation, ultimately promoting the formation of new bone tissue. Recent developments in scaffold materials have focused on organic, inorganic, and composite biomaterials. Each of these showcasing unique and distinct advantages in terms of biocompatibility, biodegradability, and mechanical strength. Polymers, such as poly (lactic-co-glycolic acid) (PLGA), provide flexibility and degradation profiles, which are conducive to tissue integration. While ceramics, including hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP), offer mechanical properties similar to native bone. The fusion of organic and inorganic components in composites has yielded scaffolds with enhanced functionality, such as improved osteo-conductivity and controlled degradation rates. Advanced fabrication techniques, particularly electrospinning and 3D printing, have revolutionized scaffold design by enabling precise control over pore size, porosity, and surface architecture, critical parameters for mimicking the extracellular matrix (ECM) of bone. These structural characteristics directly influence cellular behaviors such as migration, proliferation, and differentiation, which are crucial for successful bone regeneration. This review critically evaluates the recent advances in biomaterials for scaffold fabrication, with a focus on optimizing the interplay between material properties and scaffold architecture to improve therapeutic outcomes in bone regeneration. The findings underscore the importance of material selection and scaffold design in BTE and provide actionable insights for both researchers and clinicians in the development of next-generation scaffol

关键词： Biomaterials Bone scaffold design Ideal scaffold Polymer Scaffold Tissue engineering

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Correction: Nucleic acid detection with single-base specificity integrating isothermal amplification and light-up aptamer probes

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Nanoscale 2024年第44期16卷 20774页

作者： Jaekyun Baek Jihyun Park Youngeun Kim Interdisciplinary Program in Bioengineering Seoul National University Seoul 08826 Republic of Korea. youngeunkim@snu.ac.kr. Research Institute of Advanced Materials Seoul National University Seoul 08826 Republic of Korea. Department of Materials Science and Engineering Seoul National University Seoul 08826 Republic of Korea.

Correction for 'Nucleic acid detection with single-base specificity integrating isothermal amplification and light-up aptamer probes' by Jaekyun Baek , , 2024, https://***/10.1039/D4NR01638F.

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In Situ Alloying Enabled by Active Liquid Metal Filler for Self-Healing Composite Polymer Electrolytes

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Angewandte Chemie 2024年第47期136卷

作者： Dr. Kai Wu Dr. Zhengyu Ju Dr. Bowen Zhang Prof. Amy C. Marschilok Prof. Esther S. Takeuchi Prof. Kenneth J. Takeuchi Prof. Guihua Yu Materials Science and Engineering Program and Walker Department of Mechanical Engineering The University of Texas at Austin 78712 Austin TX USA Institute of Energy Sustainability Environment and Equity Stony Brook University 11794 Stony Brook NY USA Department of Chemistry Stony Brook University 11794 Stony Brook NY USA Interdisciplinary Science Department Brookhaven National Laboratory 11973 Upton NY USA Department of Materials Science and Chemical Engineering Stony Brook University 11794 Stony Brook NY USA

Solid inorganics, known for kinetically inhibiting polymer crystallization and enhancing ionic conductivity, have attracted significant attention in solid polymer electrolytes. However, current composite polymer electrolytes (CPEs) are still facing challenges in Li metal batteries, falling short of inhibiting severe dendritic growth and resulting in very limited cycling life. This study introduces Ga 62.5 In 21.5 Sn 16 (Galinstan) liquid metal (LM) as an active liquid alternative to conventional passive solid fillers, aiming at realizing self-healing protection against dendrite problems. Compared to solid inorganics, for example silica, LM droplets could more significantly reduce polymer crystallinity and enhance Li-ion conductivity due to their liquid nature, especially at temperatures below the polymer melting point. More importantly, LMs are unraveled as dynamic chemical traps, which are capable of blocking and consuming lithium dendrites upon contact via in situ alloying during battery operation and further inhibiting dendritic growth due to the lower deposition energy barrier of the formed Li-LM alloy. As a proof of concept, by strategically designing an asymmetric CPE with the active LM filling, a solid-state Li/LiFePO 4 battery achieves promising full-cell functionality with notable rate performance and stable cycle life. This active filler-mediated self-healing approach could bring new insights into the battery design in versatile solid-state systems.

关键词： Solid-state battery Composite polymer electrolyte Liquid metal Lithium-metal battery Li dendrite

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Spin-polarized phases of P23 superfluids in neutron stars

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Physical Review C 2021年第4期104卷 045803-045803页

作者： Takeshi Mizushima Shigehiro Yasui Daisuke Inotani Muneto Nitta Department of Materials Engineering Science Osaka University Toyonaka Osaka 560-8531 Japan Department of Physics and Research and Education Center for Natural Sciences Keio University Hiyoshi 4-1-1 Yokohama Kanagawa 223-8521 Japan Interdisciplinary Theoretical and Mathematical Sciences Program RIKEN Wako Saitama 351-0198 Japan

The interior of a neutron star is expected to be occupied by a neutron P23 superfluid, which is the condensate of spin-triplet p-wave Cooper pairs of neutrons with total angular momentum J=2. Here we investigate the thermodynamic stability of P23 superfluids in a neutron-star interior under a strong magnetic field. Using the theory incorporating the finite-size correction of the neutron Fermi surface, we show that the spin-polarized phases of P23 superfluids, the magnetized biaxial nematic phase, and the ferromagnetic phase appear in high temperatures and high magnetic fields. These phases were missed in the previous studies using the quasiclassical approximation in which dispersions of neutrons are linearized around the Fermi surface. In particular, the ferromagnetic phase, which is the condensation of Cooper-paired neutrons with fully polarized spins, appears between the normal phase and the biaxial nematic phase and enlarges the thermodynamic stability of P23 superfluids under strong magnetic fields. Furthermore, we present the augmented Ginzburg-Landau theory that incorporates the thermodynamic stability of spin-polarized P23 superfluid phases.

关键词： Nuclear matter in neutron stars Superfluidity

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