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Ultrasensitive and selective electrochemical detection of hydroquinone using electropolymerized 7-amino cephalosporanic acid modified GCE

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Surface and Coatings Technology 2025年 512卷

作者： Sathya, H. Varatharajan, Pandiaraja Ashkar, M.A. Chandhru, M. Govindasamy, Mani Rani, S. Kutti Vasimalai, N. Department of Chemistry B.S. Abdur Rahman Crescent Institute of Science and Technology Chennai Vandalur600 048 India International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan Department of Physics B.S. Abdur Rahman Crescent Institute of Science and Technology Chennai Vandalur600 048 India Tamil Nadu Chennai602105 India Research Center for Intelligent Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan

Industrial wastewater pollution harms ecosystems and hinders sustainable development growth. Particularly, hydroquinone (HQ) has transitioned from a commercial chemical to an environmental hazard because of its extensive use in beauty products, pharmaceuticals, chemicals, and food industries. Therefore, developing electrochemical sensors for the detection of HQ is very important for environmental safety. Herein, the 7-ACA monomer was electropolymerized on the glassy carbon electrode (GCE) surface to examine the electrochemical oxidation of HQ utilizing CV (cyclic voltammetry) and dPV (differential pulse voltammetry) techniques. Scanning electron microscopy (SEM) characterization verified the deposition of the p-7-ACA on the glassy carbon electrode (GCE) surface. The designed p-7-ACA@GCE sensor exhibited better electrocatalytic properties. The acquired dPV observations for the p-7-ACA@GCE demonstrated excellent limit of detection (LOd) 8.86 nmol L−1 and broad linear range (0.33 μM to 955 μM) for the detection of HQ. The developed sensor exhibits excellent repeatability, reproducibility, selectivity and better cyclic stability. In addition, the fabricated p-7-ACA@GCE was used to determine the HQ in a different environmental water sample. © 2025

关键词： Cyclic voltammetry

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Predicting the sweetness level of avomango (Gadung Klonal 21) using multi-predictor local polynomial regression

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IOP Conference Series: Earth and Environmental science 2021年第1期733卷

作者： M Ulya N Chamidah T Saifudin Ph.D. Student of Mathematics and Natural Sciences Study Program Faculty of Science and Technology Airlangga University Indonesia Study Program of Agroindustrial Technology Faculty of Agriculture University of Trunojoyo Madura Indonesia Department of Mathematics Faculty of Science and Technology Airlangga University Indonesia

One of the mango's maturity aspects is the sweetness of the fruits. Mature Avomango has a high degree of sweetness, characterized by a high total soluble solids (TSS) content. Currently, many non-destructive tests are using Near Infra-Red (NIR) spectroscopy to find out the TSS content. NIR spectroscopy generates spectra data, which can be used as predictors to predict Avomangos sweetness level. This study aims to predict the level of Avomangos sweetness by using a multi-predictor local polynomial regression approach and compare it with multiple polynomial regression. In this study, we use 120 samples of Avomango divided into two parts, 100 as training data and 20 as testing data. The multi-predictor local polynomial regression has better performance with the value mean absolute percentage error (MAPE) is 8.554% that categorized as a highly accurate prediction for predicting Avomangos sweetness level.

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P-239 Effectiveness and safety of palliative surgical interventions for bowel obstruction in advanced staged colorectal cancer: A systematic review and network meta-analysis

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Annals of Oncology 2023年 34卷 S100-S100页

作者： N. Vo K. Tran N. Nguyen M. doan K. Tam Department of Hepatobiliary and Pancreatic Surgery Cho Ray Hospital Ho Chi Minh City Viet Nam Ho Chi Minh City Viet Nam International Ph.D. Program in Medicine College of Medicine Taipei Medical University Taipei City Taiwan Programs of Nutrition Science Schol of Life Science National Taiwan Normal University Taipei City Taiwan Division of General Surgery Department of Surgery College of Medicine Taipei Medical University Taipei City Taiwan

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Coherence resonances and band gaps in plasmonic hole arrays

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physical Review A 2019年第2期99卷 023812-023812页

作者： Matt Smith Greg Gbur Nanoscale Science Ph.D. program University of North Carolina at Charlotte Charlotte North Carolina 28223-0001 USA Department of Physics and Optical Science University of North Carolina at Charlotte Charlotte North Carolina 28223-0001 USA

We demonstrate theoretically the existence of optical coherence band gaps by performing simulations of partially coherent light incident on a linear array of circular holes in a subwavelength-thickness gold sheet. We use a simple scalar Foldy-Lax system of equations for our model. A possible physical mechanism for the band gaps is discussed.

关键词： Optical coherence Plasmonics

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Therapeutic targeting of hepatocellular carcinoma cells with antrocinol, a novel, dual-specificity, small-molecule inhibitor of the KRAS and ERK oncogenic signaling pathways

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Chemico-Biological Interactions 2023年 370卷 110329页

作者： Hsu, Chia-Hung Weng, Pei-Wei Chen, Ming-Yao Yeh, Chi-Tai Setiawan, Syahru Agung Yadav, Vijesh Kumar Wu, Alexander T.H. Tzeng, david T.W. Gong, Jian-Xian Yang, Zhen Tzeng, Yew-Min Department of Emergency Medicine Shuang Ho Hospital Taipei Medical University New Taipei City 23561 Taiwan Graduate Institute of Injury Prevention and Control College of Public Health Taipei Medical University Taipei City 11031 Taiwan Department of Emergency Medicine School of Medicine Taipei Medical University Taipei 11031 Taiwan Department of Orthopaedics School of Medicine College of Medicine Taipei Medical University Taipei 11031 Taiwan Department of Orthopaedics Shuang Ho Hospital Taipei Medical University New Taipei City 23561 Taiwan Graduate Institute of Biomedical Materials and Tissue Engineering College of Biomedical Engineering Taipei Medical University Taipei 11031 Taiwan Division of Gastroenterology and Hepatology Department of Internal Medicine Shuang Ho Hospital New Taipei City 23561 Taiwan Division of Gastroenterology and Hepatology Department of Internal Medicine School of Medicine College of Medicine Taipei Medical University Taipei 11031 Taiwan Continuing Education Program of Food Biotechnology Applications College of Science and Engineering National Taitung University Taitung 95092 Taiwan International Ph.D. Program in Medicine College of Medicine Taipei Medical University Taipei 11031 Taiwan Ph.D. Program of Translational Medicine College of Medical Science and Technology Taipei Medical University Taipei 11031 Taiwan School of Life Sciences The Chinese University of Hong Kong 999077 Hong Kong Lifebit London EC2A 2AP United Kingdom Laboratory of Chemical Genomics School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School Shenzhen 518055 China State Key Laboratory of Bioorganic Chemistry and Molecular Engineering of the Ministry of Education and Beijing National Laboratory for Molecular Science College of Chemistry and Molecular Engineering Peking University Beijing 100871 China Shenzhen Bay Laboratory Shenzhen 518055 China Department of Applied Science National Taitung University Taitung

Until recently, sorafenib has been the only treatment approved by the U.S. Food and drug Administration for patients with advanced hepatocellular carcinoma (HCC). Some patients, however, exhibit resistance to this treatment and subsequently experience cancer progression, recurrence, or death. Therefore, identifying a new alternative treatment for patients with little or no response to sorafenib treatment is vital. In this study, we explored the therapeutic potential and underlying molecular mechanism of antrocinol ((3aS,4R,6aS,10aR)-4-(hydroxymethyl)-7,7-dimethyldecahydro-1H-naphtho[1,8a-c]furan-1-one) in patients with HCC. The results indicated that antrocinol was more therapeutically effective than antrocin, Stivarga, and sorafenib against HCC cell lines. Antrocinol also substantially suppressed the expression of KRAS-GTP, p-MEK1/2, p-ERK1/2, and p-AKT in the Huh7 cell line. Additionally, antrocinol-induced apoptosis in the Huh7 cell line, inhibited the formation of tumorspheres, and suppressed the expression of cancer stem cell markers Cd133, KLF4, Cd44, OCT4, SOX2, and c-Myc. Animal studies revealed that antrocinol alone considerably suppressed tumor growth in nonobese diabetic/severe combined immunodeficient mice inoculated with Huh7 tumorspheres. It also synergistically enhanced the anticancer effect of sorafenib, resulting in enhanced suppression of tumor growth (p < 0.001) and tumorsphere formation (p < 0.001). In tumor samples resected from mice treated with antrocinol alone or in combination with sorafenib, immunohistochemical analysis revealed an increase in BAX expression and a decrease in ERK and AKT protein expression. To the best of our knowledge, this is the first report of the anti-HCC activity of antrocinol. With its higher therapeutic efficacy than that of sorafenib, antrocinol is a candidate drug for patients with HCC who demonstrate little or no response to sorafenib treatment. © 2022 Elsevier B.V.

关键词： Antrocinol Cancer stemness Hepatocellular carcinoma KRAS/AKT/ERK axis Sorafenib

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Innovative Endoscopic Approach for Staple Line Leaks Following Sleeve Gastrectomy: Promising Outcomes with Considerable Concerns

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Obesity surgery 2024年第3期34卷 1029-1030页

作者： Ting-Wei Chang Ya-Wei Huang Chih-Kun Huang Po-Chih Chang Division of Thoracic Surgery Department of Surgery Kaohsiung Medical University Hospital/Kaohsiung Medical University Kaohsiung City Taiwan. Weight Management Center Kaohsiung Medical University Hospital/Kaohsiung Medical University Kaohsiung City Taiwan. Department of Nursing Kaohsiung Medical University Hospital/Kaohsiung Medical University Kaohsiung City Taiwan. Body Science and Metabolic Disorders International Medical Center China Medical University Hospital Taichung City Taiwan. Division of Thoracic Surgery Department of Surgery Kaohsiung Medical University Hospital/Kaohsiung Medical University Kaohsiung City Taiwan. dr.changpochih@***. Weight Management Center Kaohsiung Medical University Hospital/Kaohsiung Medical University Kaohsiung City Taiwan. dr.changpochih@***. School of Medicine College of Medicine National Sun Yat-sen University Taiwan Republic of China. dr.changpochih@***. Department of Sports Medicine College of Medicine Kaohsiung Medical University Kaohsiung City Taiwan. dr.changpochih@***. Ph.D. Program in Biomedical Engineering College of Medicine Kaohsiung Medical University Kaohsiung City Taiwan. dr.changpochih@***.

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digital development of Agrarian Production - Institutional Approach

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IOP Conference Series: Earth and Environmental science 2022年第4期988卷

作者： A L Zolkin E V Matvienko d K Suchkov S V Shamina Ph.D. in Engineering Science Senior Lecturer of Computer and Information Sciences Department of the Povolzhskiy State University of Telecommunications and Informatics Ph.D in Biological Science Junior Researcher of the Laboratory of Breeding and Seed Farming of Cereal and Sorghum Crops Volga NIISS - branch of the Samara Scientific Center of the Russian Academy of Sciences Junior Researcher Federal Research Center for Agroecology Integrated Land Reclamation and Protective Afforestation of the Russian Academy of Sciences (Laboratory for Predicting the Bio-productivity of Agroforestscapes) Department Natural science disciplines South Ural state agrarian University

The article assesses the digital transformation in relation to agriculture, especially on the basis of the technological diversity of agricultural production and crops and the associated diversity and labour intensity of production processes. The agri-industrial complex, always was a complex socio-economic system. It shall be recognized as the main and very important element of the national economy of the country, the main goals of the functioning of the complex are meeting the needs of the population in food and consumer goods from agricultural raw materials - grain, cheese, meat, butter, flour; it is necessary to create a food reserve that will ensure the country's food security for years; ensuring the efficiency of the agri-industrial system and various structures; meeting the economic and social needs of agricultural workers. It is important to develop the agricultural sector and this is the key to the prosperity of the economy of any state in the long term perspective. This is due to the consistently high demand for agricultural products. In each country, the agricultural sector of the economy is developed at different rates. Agriculture in Russia has already experienced a recession and is slowly improving its position.

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LGBTQ+ Scientists and Allies: Fostering Community and Enacting Change

CSA News

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CSA News 2021年第11期66卷

作者： Cam Anderson Ann Bybee-Finley Joseph Burke Michael Carlson Madeline Henrickson Geoffrey M. Koch Christopher Ryan Maria Teresa Tancredi Ph.D. candidate School of Earth and Sustainability University of Massachusetts–Amherst Ph.D. USDA-ARS SASL Michigan State University Texas A&M AgriLife Research and Department of Soil and Crop Science Texas A&M University Ph.D. candidate and Research Technologist II Department of Agronomy and Horticulture University of Nebraska–Lincoln master's student Department of Plant and Soil Sciences University of Delaware Soils and Biogeochemistry Graduate Group Department of Land Air and Water Resources University of California–Davis Ph.D. student Earth and Environmental Sciences Program The Graduate Center of the City University of New York Department of Crop and Soil Sciences University of Georgia

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Boosting piezoelectric catalytic ammonia synthesis: A synergistic approach with sulfur vacancy engineered CdS pyramid-surface nanospheres

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Nano Energy 2025年 142卷

作者： Fang-Rong Hsu Yu-Ching Chen Cheng-Hsi Yeh Hsun-Yen Lin Hsin-Yi Tiffany Chen Jyh Ming Wu Department of Materials Science and Engineering National Tsing Hua University 101 Section 2 Kuang Fu Road Hsinchu 300 Taiwan Ph.D. Program in Prospective Functional Materials Industry National Tsing Hua University No. 101 Section 2 Kuang Fu Road Hsinchu 300 Taiwan Department of Engineering and System Science National Tsing Hua University No. 101 Section 2 Kuang-Fu Road Hsinchu 300 Taiwan College of Semiconductor Research National Tsing Hua University No. 101 Section 2 Kuang Fu Road Hsinchu 300 Taiwan

The nitrogen reduction reaction (NRR) is essential for sustainable ammonia synthesis but suffers from low selectivity and sluggish kinetics due to hydrogen evolution. Piezocatalysis offers a promising alternative by leveraging strain-induced polarization to enhance reaction specificity and efficiency. We develop a sulfur vacancy-engineered cadmium sulfide (CdS) piezoelectric catalytic system to optimize nitrogen activation. Sulfur vacancies improve nitrogen adsorption, enhance charge separation, and lower the hydrogenation energy barrier, overcoming limitations of traditional electrocatalysts. Through a systematic investigation of charge separation mechanisms, combining theoretical calculations and experimental validation, we demonstrate the crucial role of sulfur vacancies and surface morphology in optimizing catalytic performance. Finite element method (FEM) simulations reveal that the pyramid-like CdS surface generates a strong piezopotential under mechanical stress, enhancing charge transfer and redox reactions. density functional theory (dFT) calculations show sulfur vacancies increase electron availability near the Fermi level, facilitating dinitrogen activation and stabilizing intermediates. Therefore, the optimized CdS catalyst achieves an ammonia production rate of 1702 µg g −1 h −1 —four times higher than pristine CdS—demonstrating the effectiveness of defect engineering in piezoelectric catalysis. This study highlights the synergy between piezoelectric activation and defect engineering, offering insights into charge separation and advancing piezoelectric catalysis for sustainable ammonia synthesis.

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Cold atmospheric plasma-enabled platelet vesicle incorporated iron oxide nano-propellers for thrombolysis

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Materials Today Bio 2023年 23卷 100876页

作者： Jheng, Pei-Ru Chiang, Chia-Che Kang, Jiunn-Horng Fan, Yu-Jui Wu, Kevin C.-W. Chen, Yan-Ting Liang, Jia-Wei Bolouki, Nima Lee, Jyh-Wei Hsieh, Jang-Hsing Chuang, Er-Yuan Graduate Institute of Nanomedicine and Medical Engineering Graduate Institute of Biomedical Materials and Tissue Engineering Institute of Biomedical Optomechatronics International Ph.D. Program in Biomedical Engineering School of Biomedical Engineering College of Biomedical Engineering Professional Master Program in Artificial Intelligence in Medicine College of Medicine Taipei Medical University Taipei11031 Taiwan Department of Physical Medicine and Rehabilitation Taipei Medical University Hospital Taipei Taiwan Institute of Biomedical Engineering & Nanomedicine National Health Research Institute Keyan Road Zhunan Miaoli City350 Taiwan Department of Chemical Engineering National Taiwan University No.1 Sec. 4 Roosevelt Rd Taipei10617 Taiwan Department of Plasma Physics and Technology Faculty of Science Masaryk University Brno Czech Republic Center for Plasma and Thin Film Technologies Ming Chi University of Technology New Taipei City Taiwan Department of Materials Engineering Ming Chi University of Technology New Taipei City Taiwan Cell Physiology and Molecular Image Research Center Taipei Medical University-Wan Fang Hospital Taipei11696 Taiwan

A new approach to treating vascular blockages has been developed to overcome the limitations of current thrombolytic therapies. This approach involves biosafety and multimodal plasma-derived theranostic platelet vesicle incorporating iron oxide constructed nano-propellers platformed technology that possesses fluorescent and magnetic features and manifold thrombus targeting modes. The platform is capable of being guided and visualized remotely to specifically target thrombi, and it can be activated using near-infrared phototherapy along with an actuated magnet for magnetotherapy. In a murine model of thrombus lesion, this proposed multimodal approach showed an approximately 80 % reduction in thrombus residues. Moreover, the new strategy not only improves thrombolysis but also boosts the rate of lysis, making it a promising candidate for time-sensitive thrombolytic therapy. © 2023 The Authors

关键词： Infrared devices

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