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Thermopower across the phase diagram of the cuprate La1.6−xNd0.4SrxCuO4: Signatures of the pseudogap and charge density wave phases

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Physical Review B 2021年第15期103卷 155102-155102页

作者： C. Collignon A. Ataei A. Gourgout S. Badoux M. Lizaire A. Legros S. Licciardello S. Wiedmann J.-Q. Yan J.-S. Zhou Q. Ma B. D. Gaulin Nicolas Doiron-Leyraud Louis Taillefer Institut Quantique Département de physique & RQMP Université de Sherbrooke Sherbrooke Québec J1K 2R1 Canada SPEC CEA CNRS-UMR 3680 Universite Paris-Saclay 91191 Gif sur Yvette Cedex France High Field Magnet Laboratory (HFML-EMFL) & Institute for Molecules and Materials Radboud University 6525 ED Nijmegen The Netherlands Materials Science and Engineering Program Mechanical Engineering University of Texas at Austin Austin Texas 78712 USA Department of Physics and Astronomy McMaster University Hamilton Ontario L8S 4M1 Canada Canadian Institute for Advanced Research Toronto Ontario M5G 1M1 Canada

The Seebeck coefficient (thermopower) S of the cuprate superconductor La1.6−xNd0.4SrxCuO4 was measured across its doping phase diagram (from p=0.12 to p=0.25), at various temperatures down to T≃2 K, in the normal state accessed by suppressing superconductivity with a magnetic field up to H=37.5 T. The magnitude of S/T in the T=0 limit is found to suddenly increase, by a factor ≃5, when the doping is reduced below p★=0.23, the critical doping for the onset of the pseudogap phase. This confirms that the pseudogap phase causes a large reduction of the carrier density n, consistent with a drop from n=1+p above p★ to n=p below p★, as previously inferred from measurements of the Hall coefficient, resistivity, and thermal conductivity. When the doping is reduced below p=0.19, a qualitative change is observed whereby S/T decreases as T→0, eventually to reach negative values at T=0. In prior work on other cuprates, negative values of S/T at T→0 were shown to result from a reconstruction of the Fermi surface caused by charge density wave (CDW) order. We therefore identify pCDW≃0.19 as the critical doping beyond which there is no CDW-induced Fermi surface reconstruction. The fact that pCDW is well separated from p★ reveals that there is a doping range below p★ where the transport signatures of the pseudogap phase are unaffected by CDW correlations, as previously found in YBa2Cu3Oy and La2−xSrxCuO4.

关键词： Electronic structure Pseudogap Seebeck effect Superconductivity Thermopower Cuprates

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Enhanced light-matter interaction in two-dimensional transition metal dichalcogenides

arXiv

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arXiv 2021年

作者： Huang, Lujun Krasnok, Alex Alú, Andrea Yu, Yiling Neshev, Dragomir Miroshnichenko, Andrey E. School of Engineering and Information Technologies University of New South Wales CanberraACT2600 Australia Photonics Initiative Advanced Science Research Center City University of New York New YorkNY10031 United States Physics Program Graduate Center City University of New York New YorkNY10016 United States Center for Nanophase Materials Sciences Oak Ridge National Laboratory Oak RidgeTN37831 United States Department of Electronic Materials Engineering Research School of Physics The Australian National University CanberraACT2601 Australia

Two dimensional (2D) transition metal dichalcogenide (TMDC) materials, such as MoS2, WS2, MoSe2, and WSe2, have received extensive attention in the past decade due to their extraordinary electronic, optical and thermal properties. 2D TMDC materials evolve from indirect bandgap semiconductors to direct bandgap semiconductors while their layer number is reduced from few layers to a monolayer limit. Consequently, there is strong photoluminescence in a monolayer (1L) TMDC due to the large quantum yield. Moreover, such monolayer semiconductors have two other exciting properties: large binding energy of excitons and valley polarization. These properties make them become ideal materials for various electronic, photonic and optoelectronic devices. However, their performance is limited by the relatively weak light-matter interactions due to their atomically thin form factor. Resonant nanophotonic structures provide a viable way to address this issue and enhance light-matter interactions in 2D TMDCs. Here, we provide an overview of this research area, showcasing relevant applications, including exotic light emission, absorption and scattering features. We start by overviewing the concept of excitons in 1L-TMDC and the fundamental theory of cavity-enhanced emission, followed by a discussion on the recent progress of enhanced light emission, strong coupling and valleytronics. The atomically thin nature of 1L-TMDC enables a broad range of ways to tune its electric and optical properties. Thus, we continue by reviewing advances in TMDC-based tunable photonic devices. Next, we survey the recent progress in enhanced light absorption over narrow and broad bandwidths using 1L or few-layer TMDCs, and their applications for photovoltaics and photodetectors. We also review recent efforts of engineering light scattering, e.g., inducing Fano resonances, wavefront engineering in 1L or few-layer TMDCs by either integrating resonant structures, such as plasmonic/Mie resonant metasurfaces, or

关键词： Monolayers

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Differential regulation of JAK1 expression by ETS1 associated with predisposition to primary biliary cholangitis

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Journal of Genetics and Genomics 2023年第10期50卷 807-812页

作者： Peng Jiang Chan Wang Mingming Zhang Ye Tian Weifeng Zhao Junyi Xin Yexi Huang Zhibin Zhao Wenjuan Sun Jie Long Ruqi Tang Fang Qiu Xingjuan Shi Yi Zhao Li Zhu Na Dai Lei Liu Xudong Wu Jinshan Nie Bo Jiang Youlin Shao Yueqiu Gao Jianjiang Yu Zhigang Hu Zhidong Zang Yuhua Gong Yaping Dai Lan Wang Ningling Ding Ping Xu Sufang Chen Lu Wang Jing Xu Luyao Zhang Junyan Hong Ruonan Qian Hu Li Xuan Jiang Congwei Chen Wenyan Tian Jian Wu Yuzhang Jiang Chongxu Han Kui Zhang Hong Qiu Li Li Hong Fan Liming Chen Jianqiong Zhang Zhongsheng Sun Xiao Han Zhenhua Dai Erguang Li M.Eric Gershwin Zhexiong Lian Xiong Ma Michael F.Seldin Weichang Chen Meilin Wang Xiangdong Liu Key Laboratory of Developmental Genes and Human Diseases School of Life Science and TechnologySoutheast UniversityNanjingJiangsu 210096China Institute of Translational Medicine Yangzhou University Medical CollegeYangzhouJiangsu 225009China Department of Radiology&Oncology The Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu 215004China The First Affiliated Hospital of Soochow University SuzhouJiangsu 215006China Department of Bioinformatics School of Biomedical Engineering and InformaticsNanjing Medical UniversityNanjingJiangsu 210029China Author links open overlay panelYexi Huang Guangdong Provincial People's Hospital Guangdong Academy of Medical SciencesGuangzhouGuangdong 510080China Department of Gastroenterology and Hepatology Shanghai Institute of Digestive DiseasesShanghai Jiao Tong University School of Medicine Affiliated Renji HospitalShanghai 200001China Department of Laboratory Medicine The Fourth Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu 210031China Department of Gastrointestinal Endoscopy Eastern Hepatobiliary Surgery HospitalShanghai 201800China The Fifth People's Hospital Soochow UniversitySuzhouJiangsu 215007China Department of Gastroenterology Jiangsu University Affiliated Kunshan HospitalKunshanJiangsu 215300China Department of Gastroenterology Yixing People's HospitalYixinJiangsu 214200China Department of Gastroenterology Yancheng First People's HospitalYanchengJiangsu 224005China Department of Gastroenterology Taicang First People's HospitalSoochow UniversityTaicangJiangsu 215400China Department of Hepatology Jingjiang Second People's HospitalJingjiangJiangsu 214500China Department of Hepatology The Third People's Hospital of ChangzhouChangzhouJiangsu 213001China Department of Liver Diseases Shuguang HospitalShanghai University of Traditional Chinese MedicineShanghai 201203China Department of Laboratory Medicine Jiangyin People's HospitalSoutheast UniversityJiangyinJiangsu 214400China Department of Labora

Primary biliary cholangitis(PBC)is an autoimmune liver disease characterized by the destruction of intrahepatic small bile ducts and progressive cholestasis,eventually leading to liver cirrhosis and hepatic failure wi... 详细信息

关键词： cholangitis biliary

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Accelerated Screening of Alternative DNA Base-Organic Molecule-Base Architectures via Integrated Theory and Experiment

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Angewandte Chemie 2024年第35期136卷

作者： Xinyu Feng Dr. Xianwen Wang Jiahe Liu Aiting Fu Ying Wang Shuheng Wei Huichao Chen Rui She Yangying Wang Dr. Xiao Cui Dr. Hui Hou Yuanyuan Xu Dr. Yujing Wu Dr. Qian Meng Dr. Lingling Zhang Dr. Song Wang Dr. Jiemin Zhao Institute of Clinical Pharmacology Key Laboratory of Anti-Inflammatory and Immune Medicine Ministry of Education Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine Anhui Medical University Hefei Anhui 230032 China These authors contributed equally. School of Biomedical Engineering Research and Engineering Center of Biomedical Materials Anhui Medical University Hefei Anhui 230032 China Key Laboratory of Precision and Intelligent Chemistry School of Chemistry and Materials Science University of Science and Technology of China Hefei Anhui 230026 China Second Clinical Medical College Anhui Medical University Hefei Anhui 230032 China Department of General Surgery The Second Hospital of Anhui Medical University Hefei Anhui 230032 China Department of Pediatric Critical Care Medicine Children's Medical Center of Anhui Medical University Hefei Anhui 230051 China

Organic molecule-mediated noncanonical DNA self-assembly expands the standard DNA base-pairing alphabets. However, only a very limited number of small molecules have been recognized as mediators because of the tedious and complicated experiments like crystallization and microscopy imaging. Here we present an integrative screening protocol incorporating molecular dynamics (MD) for fast theoretical simulation and native polyacrylamide gel electrophoresis for convenient experimental validation. Melamine, the molecule that was confirmed mediating noncanonical DNA base-pairing, and 38 other candidate molecules were applied to demonstrate the feasibility of this protocol. We successfully identified seven stable noncanonical DNA duplex structures, and another eight novel structures with sub-stability. In addition, we discovered that hairpins at both ends can significantly stabilize the noncanonical DNA structures, providing a guideline to design small organic molecule-incorporated DNA structures. Such an efficient screening protocol will accelerate the design of alternative DNA-molecule architectures beyond Watson–Crick pairs. Considering the wide range of potential mediators, it will also facilitate applications such as noncovalent, highly dense loading of drug molecules in DNA-based delivery system and probe design for sensitive detection of certain molecules.

关键词： DNA self-assembly noncanonical base-pairing molecular dynamics gel electrophoresis

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Correction: Influence of shape on crystal structure and optical properties of heterocyclic conjugated molecules

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Journal of materials Chemistry C 2025年第10期13卷 5385-5385页

作者： Elisa Guzmán Yu Yan Peter Müller Justin Amengual Chung-Hao Liu Mu-Ping Nieh Department of Chemistry Tufts University 62 Talbot Ave Medford MA 02155 USA Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA Polymer Program Institute of Materials Science University of Connecticut 25 King Hill Road Storrs CT 06269-3136 USA Department of Chemical & Biomolecular Engineering University of Connecticut – Storrs 97 North Eagleville Road Unit 3136 Storrs CT-06269-3136 USA

Correction for ‘Influence of shape on crystal structure and optical properties of heterocyclic conjugated molecules’ by Elisa Guzmán et al., J. Mater. Chem. C, 2025, 13, 954–962, https://***/10.1039/D4TC03509G.

Correction for ‘Influence of shape on crystal structure and optical properties of heterocyclic conjugated molecules’ by Elisa Guzmán et al., J. Mater. Chem. C, 2025, 13, 954–962, https://***/10.1039/D4TC03509G.

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Novel design of 3D-printed one-way valve inspired by biological heart

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AIP Conference Proceedings 2024年第1期3115卷

作者： Rela Adi Himarosa Wincent Gornes Leonard Sean Kresna Budiman Ardi Wiranata Rendianto Aginta Athira Nur Rahma Anindityo Patmonoaji Farid Triawan Murni Handayani Yosephin Dewiani Rahmayanti Jayan Sentanuhady Muhammad Akhsin Muflikhun Department of Mechanical Engineering Universitas Muhammadiyah Yogyakarta Yogyakarta Indonesia Department of Mechanical and Industrial Engineering Gadjah Mada University Jl. Grafika No.2 Yogyakarta 55281 Indonesia Department of Mechanical Engineering Tokyo Institute of Technology 2-12-1-I6-33 Ookayama Meguro-ku Tokyo 152-8550 Japan Mechanical Engineering Program Faculty of Engineering and Technology Sampoerna University Jl. Raya Pasar Minggu No.Kav. 16 7 RT.6/RW.9 Pancoran Kec. Pancoran Kota Jakarta Selatan Daerah Khusus Ibukota Jakarta 12780 Indonesia Research Center for Materials Science and Metallurgy National Research and Innovation Agency (BRIN) Building 470 PUSPIPTEK Area Tangerang Selatan Banten Indonesia

The world of design nowadays is heavily inspired by nature, primarily due to its efficiency and effectiveness. This paper aims to be able to implement a well-established concept of heart valves into piping. A literature review of the medical study of valves and recent advancements in manufacturing synthetic valves paves a roadmap for this study. Using simple geometry to closely mimic mitral, aortic, and tetracuspid valves, and with the help of multi-material 3D printing, the biomimicry valve using the filament deposition method was successfully synthesized. Prior to destructive tests, printing results are not acceptable except for the tricuspid valve due to excessive overhangs. Compression testing results show that printing quality does not correlate to better compressive strength. The strength of the bicuspid valve shows the highest on average of 5.678 kN, followed by tetracuspid at 4.99 kN and tricuspid at 3.753 kN. A similar pattern can be concluded at displacement at failure of 1.85, 1.8033, and 1.374 mm respectively. Further investigation is needed to determine the hydrodynamical and mechanical performance of such valves.

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Corrigendum to “Divorced Eutectoid Transformation in High-Al Added Steels due to heterogenous nucleation of κ-carbide” [Scripta Materialia, 206 (2022)114395]

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Scripta Materialia 2022年 210卷

作者： J.C. Pang W.F. Yang G.D. Wang S.J. Zheng R.D.K. Misra H.L. Yi The State Key Laboratory of Rolling and Automation Northeastern University Shenyang 110189 P.R. China Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology School of Materials Science and Engineering Hebei University of Technology Tianjin 300130 China Laboratory for Excellence in Advanced Steel Research Department of Metallurgical Materials and Biomedical Engineering University of Texas at El Paso El Paso TX 79968 USA

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Bioelectrical Interfaces Beyond Cellular Excitability: Cancer, Aging, and Gene Expression Reprogramming

arXiv

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arXiv 2025年

作者： Cadinu, Paolo Burgess, Matthew Jones, Catarina Franco Luciani, Titouan Iarossi, Marzia Schröter, Manuel Nakatsuka, Nako Djamgoz, Mustafa B.A. Gonçalves, Gil Sanjuán-Alberte, Paola Mendes, Paula M. Rawson, Frankie J. Nair, Malavika Levin, Michael Moreddu, Rosalia Program in Cellular and Molecular Medicine Boston Children’s Hospital BostonMA02115 United States Department of Microbiology Blavatnik Institute Harvard Medical School BostonMA02115 United States Institute of Biomedical Engineering Department of Engineering Science University of Oxford Oxford United Kingdom Department of Bioengineering Institute for Bioengineering and Biosciences Instituto Superior Técnico University of Lisbon Lisbon Portugal Associate Laboratory i4HB Institute for Health and Bioeconomy Instituto Superior Técnico Universidade de Lisboa Lisbon Portugal Department of Neuroscience Institut Pasteur Paris75015 France Department of Biomedical Engineering Technion Israel Institute of Technology Haifa Israel ETH Zurich Department of Biosystems Science and Engineering Basel Switzerland Laboratory of Chemical Nanotechnology Neuro-X Institute EPFL Genève1202 Switzerland Department of Life Sciences Imperial College London United Kingdom Department of Mechanical Engineering University of Aveiro Aveiro3810-193 Portugal Guimarães4800-058 Portugal School of Chemical Engineering University of Birmingham Birmingham United Kingdom Bioelectronics Laboratory Division of Regenerative Medicine and Cellular Therapies School of Pharmacy Biodiscovery Institute University of Nottingham Nottingham United Kingdom Allen Discovery Centre Tufts University Tufts University MedfordMA United States Wyss Institute for Bioinspired Engineering Harvard University BostonMA United States School of Electronics and Computer Science University of Southampton Southampton United Kingdom Institute for Life Sciences University of Southampton Southampton United Kingdom

Bioelectrical interfaces represent a significant evolution in the intersection of nanotechnology and biophysics, oRering new strategies for probing and influencing cellular processes. These systems capitalize on the subtle but powerful electric fields within living matter, potentially enabling applications beyond cellular excitability, ranging from targeted cancer therapies to interventions in genetic mechanisms and aging. This perspective article envisions the translation, development and application of next-generation solid-state bioelectrical interfaces and their transformative impact across several critical areas of medical research. © 2025, CC BY.

关键词： Medical nanotechnology

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Experimental investigation of productivity of machining process using double tool turning

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AIP Conference Proceedings 2022年第1期2648卷

作者： Kuba Defaru Nedi Moera Gutu Jiru G. M. Sayeed Ahmed Dasari Govardhan 1Department of Mechanical Design and Manufacturing Engineering Adama Science and Technology University ADAMA Ethiopia. P.O.Box:1888 2Program of Mechanical Design and Manufacturing Engineering School of Mechanical Chemical and Materials Engineering (SoMCME) ASTU ADAMA Ethiopia. P.O.Box:1888 3Department of Mechanical Engineering Joginpally B.R Engineering College Hyderabad TS-500075 India

Machining is a globally used manufacturing technology where some part of metal is reduced from bulk workpiece in the chip form. In this thesis work, explores the science of new techniques of machining by two single point cutting tools simultaneous engaged with workpiece material to increase efficiency of the turning operation. In order to implement double tool turning process a normal lathe machine setup was altered. In turning operation, the process factors which affect machined surface quality of component are cutting speed, feed, and depth of cut. Investigation was trailed out to the improvements of productivity by this new machining technique under the influence of metal cutting factors on cutting temperature, tool wear. The morphology of chips and machining time were also studied. A comprehensive test was examined by utilising single and double tool turning process on mild steel work material. The analytically predicted metal cutting temperatures, cutting tool wear, machining time were investigated in detail. For the selected metal cutting conditions, it was recorded that the machining time reduced by 25% surprisingly which the production with this time ranges increased. Tool wear area measured by optical Profilometer shows that total wear zone 813.11mm2 for single tool turning while it was reduced to 45.57 mm2 for double tool turning.

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Corrections to "iPhantom: A Framework for Automated Creation of Individualized Computational Phantoms and its Application to CT Organ Dosimetry"

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IEEE journal of biomedical and health informatics 2022年第1期26卷 478页

作者： Wanyi Fu Shobhit Sharma Ehsan Abadi Alexandros-Stavros Iliopoulos Qi Wang Joseph Y Lo Xiaobai Sun William P Segars Ehsan Samei Department of Electrical and Computer Engineering and Carl E. Ravin Advanced Imaging Laboratories Duke University Durham NC USA Department of Physics and Carl E. Ravin Advanced Imaging Laboratories Duke University Durham NC USA Department of Computer Science Duke University Durham NC USA Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology Cambridge MA USA Department of Radiology the Fourth Clinical Hospital of Hebei Medical University Heibei China Departments of Electrical and Computer Engineering Biomedical Engineering Medical Physics Graduate Program and Carl E. Ravin Advanced Imaging Laboratories Duke University Durham NC USA Medical Physics Graduate Program and Radiology and the Carl E. Ravin Advanced Imaging Laboratories Departments of Biomedical Engineering Duke University Durham NC USA Carl E. Ravin Advanced Imaging Laboratories Medical Physics Graduate Program Department of Radiology Electrical and Computer Engineering Biomedical Engineering and Physics Duke University Durham NC USA

In [1], the dose estimation accuracy using the alternative baseline method under modulated tube current was not correctly calculated due to an unintentional simulation error.

关键词： Phantoms Image segmentation Computed tomography Image registration

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