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Direct Z-Scheme Heterostructure of In-Situ Planted Zno Nanorods on G-C3n4 Thin Sheets Sprayed on Tio2 Layer: A Strategy for Ternary-Photoanode Engineering Towards Enhanced Photoelectrochemical Water Splitting

SSRN

引用

SSRN 2023年

作者： Hung, Chen-Hsiung Aboubakr, Ahmed Esmail A. Hussien, Mahmoud Kamal Sabbah, Amr Hassan, Ahmed E. Elsayed, Mohamed Hammad Wen, Zhenhai Chen, Kuei-Hsien Sustainable Chemical Science and Technology Taiwan International Graduate Program Taiwan Department of Applied Chemistry National Yang Ming Chiao Tung University Hsinchu30010 Taiwan Institute of Chemistry Academia Sinica 128 Sec 2 Academia Rd. Nankang Taipei11529 Taiwan Department of Chemistry Faculty of Science Assiut University Assiut71516 Egypt Institute of Atomic and Molecular Sciences Academia Sinica Taipei10617 Taiwan Center for Condensed Matter Sciences National Taiwan University Taipei10617 Taiwan CAS Key Laboratory of Design and Assembly of Functional Nanostructures And Fujian Provincial Key Laboratory of Materials and Techniques Toward Hydrogen Energy Fujian Institute of Research on The Structure of Matter Chinese Academy of Sciences Fujian Fuzhou350002 China University of Chinese Academy of Sciences Beijing100049 China Department of Chemistry Faculty of Science Al-Azhar University Nasr City Cairo11884 Egypt

A novel approach to enhance the separation and transfer of charge carriers of photoanode for photoelectrochemical water splitting has developed. We improved the procedures for in-situ implantation of ZnO on g-C3N4, resulting in strong chemical adhesion between the interface of ZnO and g-C3N4. Our airbrushing procedure for fabricating the g-C3N4/ZnO composite on TiO2 also enhanced the charge collection efficiency, enabling us to construct a high performance photoanode. The Z-scheme type charge migration route was verified by EPR spectroscopy through trapping the radicals generated by charges and holes. PEC-WS measurements showed that TiO2/g-C3N4/ZnO heterostructure improved the produced photocurrent by about 160-, 40-, 20-, 8-, 2-, and 2-fold, relative to pristine g-C3N4, pristine ZnO nanorods, ZnO/g-C3N4 composite, pristine TiO2, TiO2/ZnO, and TiO2/g-C3N4, respectively, versus reversible hydrogen electrode (RHE) at 1.23 V. © 2023, The Authors. All rights reserved.

关键词： Zinc oxide

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Emergence of a predominant sequence type ST7363 and the increasing trend of resistance to cefixime and ceftriaxone in Neisseria gonorrhoeae in Southern Taiwan, 2019-2021

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Journal of microbiology, immunology, and infection = Wei mian yu gan ran za zhi 2023年第4期56卷 833-841页

作者： Hsuan-Han Lin Jia-Wen Li Tsung-Ying Yang Chun-Yuan Lee Shu-Huei Jain Shang-Yi Lin Po-Liang Lu School of Medicine Kaohsiung Medical University Kaohsiung Taiwan Division of General Medicine Department of Medical Education Shin Kong Wu Ho-Su Memorial Hospital Taiwan. Fengshan Li Jiawen Urology Clinic Kaohsiung Taiwan. Center for Liquid Biopsy and Cohort Research Kaohsiung Medical University Kaohsiung Taiwan Department of Medical Laboratory Science I-Shou University Taiwan. Division of Infectious Diseases Department of Internal Medicine Kaohsiung Medical University Hospital Kaohsiung Taiwan College of Medicine Kaohsiung Medical University Kaohsiung Taiwan Graduate Institute of Clinical Medicine Kaohsiung Medical University Kaohsiung Taiwan M.Sc. Program in Tropical Medicine College of Medicine Kaohsiung Medical University Kaohsiung Taiwan ROC. Division of Infectious Diseases Department of Internal Medicine Kaohsiung Medical University Hospital Kaohsiung Taiwan. Department of Laboratory Medicine Kaohsiung Medical University Hospital Kaohsiung Taiwan. Division of Infectious Diseases Department of Internal Medicine Kaohsiung Medical University Hospital Kaohsiung Taiwan School of Post-Baccalaureate Medicine College of Medicine Kaohsiung Medical University Kaohsiung Taiwan Department of Biological Science and Technology College of Biological Science and Technology National Yang Ming Chiao Tung University Taiwan. Electronic address: d830166@***.

BACKGROUND/PURPOSE:Multi-drug resistance and the presence of epidemic lineages of Neisseria gonorrhoeae locally and globally were important clinical and public health issues. We aimed to investigate the molecular epidemiology and the antimicrobial susceptibility profiles of N. gonorrhoeae in Southern Taiwan. METHODS:Between 2019 and 2021, adult patients who had suspected gonorrhea and attended a urology clinic in southern Taiwan were recruited to participate in this study. Clinical data from medical records and a questionnaire, antimicrobial susceptibility testing using a disk diffusion test in accordance with the guidelines by the Clinical and Laboratory Standards Institute, and Multi-locus sequence typing (MLST) were analyzed. RESULTS:A total of 500 patients participated in the surveillance study. Among them, 232 N. gonorrhoeae isolates were identified, but only 164 isolates were recovered for further research. ST7363 (n = 83, 50.61%) was found to be the predominant sequence type, followed by ST1583 (n = 24, 14.63%), ST1588 (n = 13, 7.93%), and ST7827 (n = 12, 7.32%). 100% resistance to penicillin and 99.4% non-susceptible rate of ciprofloxacin were observed. The azithromycin resistant rate being 15.24% and the cefixime non-susceptible rate being 17.07% were alarming, both with decreasing trends in susceptibilities during 2019-2021. The 25 azithromycin resistant isolates were mainly belonged to ST7363 (n = 12) and ST7827 (n = 3). Seven (4.2%) isolates were ceftriaxone non-susceptible. Among them, four were assigned to be ST 7827 and three belonged to ST7363. CONCLUSION:We observed the emergence of a predominant sequence type ST7363 in southern Taiwan. Compared with previous Taiwan studies, the increasing trend of resistance to cefixime and ceftriaxone necessitates clinicians' alertness for clinical treatment response of the extended spectrum cephalosporins and the further surveillance monitor.

关键词： Antimicrobial susceptibility Gonorrhea Molecular epidemiology

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AB0988 TELOMERE LENGTH ASSOCIATION WITH CLINICAL CHARACTERISTICS AND COGNITION IN PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS: A CROSS-SECTIONAL STUDY

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Annals of the Rheumatic Diseases 2024年 83卷 1810-1810页

作者： A.C. Faria Moreira Gomes Tavares M.A. Camargos Bicalho C. Ruas Freire Santos J. Martins Amaral I.C. Bolaños Burgos D. Valadão Freitas Rosa D. Marques De Miranda M.A. Romano-Silva G.A. Ferreira A.M. Kakehasi Federal University of Minas Gerais Post Graduate Program in Sciences Applied to Adult Health Care Belo Horizonte Brazil Federal University of Minas Gerais Clinics Hospital Belo Horizonte Brazil Federal University of Minas Gerais Belo Horizonte Brazil Federal University of Minas Gerais National Institute of Science and Technology in Molecular Medicine Belo Horizonte Brazil Federal University of Minas Gerais Neurotec R National Institute of Science and Technology (INCT-Neurotec R) Belo Horizonte Brazil federal University of Minas Gerais Neurotec R National Institute of Science and Technology (INCT-Neurotec R) Belo Horizonte Brazil

Background: Telomeres are protein complexes located at the top of each arm of chromosomes, essential for maintaining the stability of the genome. Telomere shortening is found in physiological aging and senescence-related to systemic lupus erythematosus (SLE). Objectives: To compare the relative telomere length (TL) in patients with SLE and controls and to correlate the TL with clinical characteristics, treatments, disease activity, and damage. Methods: A cross-sectional study comparing SLE patients and controls, from 18 to 60 years old, matched by sex and age. Clinical and demographic data from all participants were collected, and relative TL by qPCR. For cases, previous and current history, disease activity, damage, cognitive assessment, fatigue, presence of depression, anxiety, stress symptoms, and physical activity were analyzed. Results were obtained using frequencies and percentages for qualitative characteristics and measures of central tendency and standard deviation for quantitative ones. Comparisons of relative TL and other variables were performed using the t-Student test when assumptions of normality and homoscedasticity were satisfied and the Mann-Whitney test otherwise. A significance level of 5% was considered. Results: Sixty SLE patients and 55 controls were included. Among patients, 75% were diagnosed in adulthood; 86.7% were female (mean age 37 years); 15% had antiphospholipid syndrome (APS), 51.7% had a previous history of nephritis, and 23.3% had neuropsychiatric involvement. Among controls, 87.3% were female (mean age 38 years). There was no difference between groups regarding sex and age (p=0.924 and p=0.737, respectively). SLE patients had a median relative TL of 0.80 versus 1.07 in the control group (p=0.005). In the multiple regression model (R 2 =18.4%), patients with anxiety symptoms in a moderate grade had lower TL (p=0.015) when compared to patients without or with low-grade anxiety symptoms. In contrast, patients with APS had longer telo

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In-situ observation of hydrogen nanobubbles formation on graphene surface by AFM-SECM

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Electrochimica Acta 2024年 493卷

作者： Kholimatussadiah, Septia Hsu, Chia-Ling Ke, Shang-Wei Chou, Tsu-Chin Wu, Yung-Fu Yakimova, Rositsa Kumatani, Akichika Chen, Kuei-Hsien Chen, Li-Chyong Du, He-Yun Department of Physics National Taiwan University Taipei 10617 Taiwan Nano Science and Technology Taiwan International Graduate Program Academia Sinica Taipei 10617 Taiwan Center for Condensed Matter Sciences National Taiwan University Taipei 10617 Taiwan Center of Atomic Initiative for New Materials National Taiwan University Taipei 10617 Taiwan Department of Chemical Engineering Ming Chi University of Technology New Taipei City24301 Taiwan Institute of Atomic and Molecular Sciences Academia Sinica Taipei 10617 Taiwan Institute of Analytical and Environmental Sciences National Tsing Hua University Hsinchu 300044 Taiwan Department of Physics Chemistry and Biology Linköping University SE-581 83 Linköping Sweden Institute of Engineering Innovation School of Engineering The University of Tokyo Tokyo 113-8656 Japan Saitama 332-0012 Japan Tohoku University Sendai980-8577 Japan Battery Research Center of Green Energy Ming Chi University of Technology New Taipei City24301 Taiwan Biochemical Technology R&D Center Ming Chi University of Technology New Taipei City24301 Taiwan Center for Sustainability and Energy Technologies Chang Gung University Taoyuan City33302 Taiwan

Gas bubble evolution is an important phenomenon in many electrochemical processes and it is highly sensitive to the surface properties. Here we visualize the gas bubble dynamics on the surface of different graphene substrates during hydrogen evolution reaction (HER) using atomic force microscopy combined with scanning electrochemical microscopy. The low overpotential and low surface hydrophobicity of few-layer graphene formed on C-phase SiC causes the uniform distribution of hydrogen nanobubbles, which easily depart from the surface during the reaction. Conversely, the high overpotential and more hydrophobic surface of HOPG induces hydrogen bubbles to linger on the surface for an extended duration, leading to its accumulation and the subsequent formation of microbubbles. This in-situ nanoscale electrochemical mapping of hydrogen bubble dynamics provides new insight into electrocatalytic HER that occurs on non-metal electrodes. © 2024 Elsevier Ltd

关键词： Graphene

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Loss tangent fluctuations due to two-level systems in superconducting microwave resonators

arXiv

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arXiv 2024年

作者： Vallières, A. Russell, M.E. You, X. Garcia-Wetten, D.A. Goronzy, D.P. Walker, M.J. Bedzyk, M.J. Hersam, M.C. Romanenko, A. Lu, Y. Grassellino, A. Koch, J. McRae, C.R.H. Graduate Program in Applied Physics Northwestern University EvanstonIL60208 United States Fermi National Accelerator Laboratory BataviaIL60510 United States Department of Physics and Astronomy Northwestern University EvanstonIL60208 United States Department of Materials Science and Engineering Northwestern University EvanstonIL60208 United States Department of Chemistry Northwestern University EvanstonIL60208 United States Department of Electrical and Computer Engineering Northwestern University EvanstonIL60208 United States Center for Applied Physics and Superconducting Technologies Northwestern University EvanstonIL60208 United States Electrical Computing and Energy Engineering Department University of Colorado BoulderCO80309 United States Department of Physics University of Colorado BoulderCO80309 United States National Institute of Standards and Technology BoulderCO80305 United States

Superconducting microwave resonators are critical to quantum computing and sensing technologies. Additionally, they are common proxies for superconducting qubits when determining the effects of performance-limiting loss mechanisms such as from two-level systems (TLS). The extraction of these loss mechanisms is often performed by measuring the internal quality factor Qi as a function of power or temperature. In this work, we investigate large temporal fluctuations of Qi at low powers over periods of 12 to 16 hours (relative standard deviation σQi/Qi = 13%). These fluctuations are ubiquitous across multiple resonators, chips and cooldowns. We are able to attribute these fluctuations to variations in the TLS loss tangent due to two main indicators. First, measured fluctuations decrease as power and temperature increase. Second, for interleaved measurements, we observe correlations between low- and medium-power Qi fluctuations and an absence of correlations with high-power fluctuations. Agreement with the TLS loss tangent mean is obtained by performing measurements over a time span of a few hours. We hypothesize that, in addition to decoherence due to coupling to individual near-resonant TLS, superconducting qubits are affected by these observed TLS loss tangent fluctuations. © 2024, CC BY.

关键词： Qubits

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Electron Transfer Enhanced by a Minimal Energetic Driving Force at the Organic-Semiconductor Interface

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Angewandte Chemie 2024年第37期136卷

作者： Hiroto Iwasaki Keisuke Fujimoto Koki Banno Qing-jun Shui Yutaka Majima Masaki Takahashi Seiichiro Izawa Laboratory for Materials and Structures Tokyo Institute of Technology 4259 Nagatsuta-cho Midori-ku Yokohama Kanagawa 226-8503 Japan Applied Chemistry Program Graduate School of Advanced Science and Engineering Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan Department of Applied Chemistry Faculty of Engineering Shizuoka University 3-5-1 Johoku Chuo-ku Hamamatsu Shizuoka 432-8561 Japan Precursory Research for Embryonic Science and Technology (PRESTO) Japan Science and Technology Agency (JST) 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan

The energetic driving force for electron transfer must be minimized to realize efficient optoelectronic devices including organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). Exploring the dynamics of a charge-transfer (CT) state at an interface leads to a comprehension of the relationship between energetics, electron-transfer efficiency, and device performance. Here, we investigate the electron transfer from the CT state to the triplet excited state (T 1 ) in upconversion OLEDs with 45 material combinations. By analyzing the CT emission and the singlet excited-state emission from triplet–triplet annihilation via the dark T 1 , their energetics and electron-transfer efficiencies are extracted. We demonstrate that the CT→T 1 electron transfer is enhanced by the stronger CT interaction and a minimal energetic driving force (<0.1 eV), which is explained using the Marcus theory with a small reorganization energy of <0.1 eV. Through our analysis, a novel donor–acceptor combination for the OLED is developed and shows an efficient blue emission with an extremely low turn-on voltage of 1.57 V. This work provides a solution to control interfacial CT states for efficient optoelectronic devices without energy loss.

关键词： electron transfer Marcus theory organic optoelectronic devices organic light-emitting diodes organic photovoltaics

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Sharma et al. Reply:

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Physical Review Letters 2022年第21期128卷 219602-219602页

作者： Keshav Sharma Nathalia L. Costa Yoong Ahm Kim Hiroyuki Muramatsu Newton M. Barbosa Neto Luiz G. P. Martins Jing Kong Alexandre Rocha Paschoal Paulo T. Araujo Department of Physics and Astronomy University of Alabama Tuscaloosa 35487 Alabama USA Department of Physics Federal University of Ceara Fortaleza 60455-760 Ceara Brazil Department of Polymer Engineering School of Polymer Science and Engineering and Alan G. MacDiarmid Energy Research Institute Chonnam National University 77 Yongbong-ro Buk-gu Gwangju 61186 Republic of Korea Research Institute for Supra-Materials Shinshu University 4-17-1 Wakasato 380-8553 Nagano Japan Institute of Natural Sciences Graduate Program in Physics Federal University of Para Belem 66075-110 Brazil Department of Physics Massachusetts Institute of Technology Cambridge 02139 Massachusetts USA Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge 02139 Massachusetts USA

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Cover Picture: Circularly Polarized Luminescence Active Supramolecular Nanotubes Based on PtIIComplexes That Undergo Dynamic Morphological Transformation and Helicity Inversion (Angew. Chem. Int. Ed. 38/2022)

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Angewandte Chemie International Edition 2022年第38期61卷

作者： Seok Gyu Kang Dr. Ka Young Kim Yumi Cho Dong Yeun Jeong Prof. Ji Ha Lee Prof. Tomoki Nishimura Prof. Shim Sung Lee Prof. Sang Kyu Kwak Prof. Youngmin You Prof. Jong Hwa Jung Department of Chemistry and Research Institution of Natural Sciences Gyeongsang National University (GNU) Jinju 52828 Republic of Korea Department of Energy Enginerring School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea Division of Chemical Engineering and Materials Science Graduate Program in System Health Science and Engineering Ewha Womans University Seoul 03760 Republic of Korea Chemical Engineering Program Graduate School of Advanced Science and Engineering Hiroshima University Hiroshima 739-8527 Japan Department of Chemistry and Materials Faculty of Textile Science and Technology Shinshu University Nagano 386-8567 Japan

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Towards the Development of Tailored Steel Rebars for Carbonated-Cured Cement Matrices

SSRN

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SSRN 2023年

作者： Felipe, Rafaela F. Rezende, Mariana de Almeida Motta Corradini, Patricia Gon Santiago, Matheus Ambrósio H. Sales, Almir da Ferreira, Fernanda Silva G. Huet, Bruno Nogueira, Ricardo P. Koga, Guilherme Yuuki Federal University of São Carlos Graduate Program in Materials Science and Engineering Rod. Washington Luis km 235 SP São CarlosCEP 13565-905 Brazil Federal University of São Carlos Department of Materials Science and Engineering Rod. Washington Luis km 235 SP São CarlosCEP 13565-905 Brazil Faculty of exact sciences and technology Pontifical Catholic University of São Paulo Marquês de Paranaguá 111 SP São Paulo01303-050 Brazil Department of Chemistry Federal University of São Carlos Mailbox 676 SP São CarlosCEP 13565-905 Brazil Laboratório de Análises Químicas e Agroambientais Fluminense Federal Institute of Education Science and Technology Campus Itaperuna BR 356 km 3 RJ Itaperuna CEP 28300-000 Brazil Department of Civil Engineering Federal University of São Carlos Mailbox 676 SP São CarlosCEP 13565-905 Brazil Holcim Innovation Center 95 Rue du Montmurier Saint-Quentin-Fallavier38070 France Chemical Engineering Department Khalifa University of Science and Technology Abu Dhabi127788 United Arab Emirates Federal University of Sao Carlos Rodovia Washington Luiz km 235 SP-310 São Paulo São Carlos13565-905 Brazil

The passivation ability of steels with low chromium contents (4% and 6%) in a solution representative of carbonated-cured concrete matrices was compared to conventional carbon steel rebars. Samples were investigated through multiple electrochemical methods, and the passive film was evaluated using x-ray photoelectron spectroscopy. Results showed that carbon steel rebars are vulnerable to corroding in carbonated-cured pore solutions, while the low chromium showed spontaneous, rapid and effective passivation. The study demonstrated the possibility of producing tailored low chromium steels as a durable alternative to carbon steel while being more affordable than stainless steel, contributing to more sustainable, innovative reinforced concretes. © 2023, The Authors. All rights reserved.

关键词： Steel corrosion

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Titelbild: Circularly Polarized Luminescence Active Supramolecular Nanotubes Based on PtIIComplexes That Undergo Dynamic Morphological Transformation and Helicity Inversion (Angew. Chem. 38/2022)

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Angewandte Chemie 2022年第38期134卷

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