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Snake-scale stimulated robust biomimetic composite triboelectric layer for energy harvesting and smart health monitoring

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Nano Energy 2024年 122卷

作者： Huang, Ming-Zheng Parashar, Parag Chen, An-Rong Shi, Shih-Chen Tseng, Yao-Hsuan Lim, Kee Chin Yeh, Hsuan-Yu Pal, Arnab Kang, dun-Yen Lin, Zong-Hong Institute of Biomedical Engineering National Tsing Hua University Hsinchu 30013 Taiwan Department of Biomedical Engineering National Taiwan University Taipei 10617 Taiwan Department of Chemical Engineering National Taiwan University Taipei 10617 Taiwan Department of Materials Science and Engineering National Tsing Hua University Hsinchu 30013 Taiwan Department of Mechanical Engineering National Cheng Kung University Tainan 70101 Taiwan International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu 30013 Taiwan Department of Power Mechanical Engineering National Tsing Hua University Hsinchu 30013 Taiwan Internet of Senses Research Center National Tsing Hua University Hsinchu 30013 Taiwan

Extreme frictional wear of triboelectric layers severely hinders long-term sustainability of triboelectric nanogenerators (TENGs) for efficient ambient energy harvesting. The state-of-the-art solutions necessitate sophisticated structural designs and complex packaging constraints, impeding the feasibility of TENGs for practical applications. Herein, inspired by the structures and compositions of snake scales, a biomimetic composite (BC) film is fabricated as a wear-resistant triboelectric contact layer. The successful formation of disulfide bond-facilitated cross-linkage of cysteine proteins in the keratin-based BC film promotes excellent mechanical resilience and durability, thereby solving the material abrasion challenges associated with solid-solid triboelectric layers. The BC film, with toothed microstructure, exhibits improved charge transfer, low friction, and consistent long-term stable outputs compared to commercial films. Furthermore, a self-powered BC film-based TENG is integrated into a bicycle for biomechanical energy harvesting, lightening warning signals for safer night ride with stable 300 V electrical output for at least 6 h. Moreover, a smart health monitoring system is further proposed by embedding TENG-based sensors into the bicycle saddle, accurately capturing the rider's pelvic-saddle interactions on varying terrain slopes. By leveraging the unique biomechanical information, machine learning-assisted user identification and terrain slope data classifications are achieved with high accuracies, laying a foundation for futuristic smart healthcare applications. This work provides a strategy to reduce material abrasion by exploiting the unique characteristics of a biomimetic material, facilitating a basis for efficient environmental energy harvesting and smart sensing. © 2024 Elsevier Ltd

关键词： Biomechanical energy harvesting Biomimetic Smart healthcare Snake-scales Triboelectric nanogenerator Wear resistance

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Application of vetiver grass (Vetiveria Zizanioides L.) for organic matter removal from contaminated surface water

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Bioresource Technology Reports 2023年 22卷

作者： Nguyen, Minh Ky Hung, Nguyen Tri Quang Nguyen, Cong Manh Lin, Chitsan Nguyen, Tuan Anh Nguyen, Hoang-Lam Ph.D. Program in Maritime Science and Technology National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Faculty of Environment and Natural Resources Nong Lam University Hamlet 6 Linh Trung Ward Thu Duc Dist. Ho Chi Minh City700000 Viet Nam Research Institute for Biotechnology and Environment Nong Lam University Hamlet 6 Linh Trung Ward Thu Duc Dist. Ho Chi Minh City700000 Viet Nam Department of Civil Engineering McGill University Montreal Canada

This study presents the vertical flow constructed wetlands (VFCWs) as a green solution for organic matter removal in contaminated surface water – a case study in Vietnam. The experiments were conducted with hydraulic loading rates (HLRs) of 500 mL/m2/min (T1), 1000 mL/m2/min (T2), and 1500 mL/m2/min (T3) using Vetiver grass (V) and Control (C). The findings indicated that Vetiver grass (Vetiveria Zizanioides L.) based-VFCWs model achieves a removal efficiency of 90 % for biochemical oxygen demand (BOd5) and >80 % for chemical oxygen demand (COd). This could explain the significant contribution of aquatic plants to the VFCWs based on vertical flow characteristics. Analysis of variance showed that HLRs significantly influence the treatment efficiency of BOd5 and COd (P © 2023 Elsevier Ltd

关键词： Irrigation

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Separation of Electric Guitar Sound based on stacked Recurrent Neural Network

Separation of Electric Guitar Sound based on stacked Recurre...

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International Conference on Technologies and Applications of Artificial Intelligence (TAAI)

作者： Wen-Hsing Lai Siou-Lin Wang National Kaohsiung University of Science and Technology Kaohsiung Taiwan Ph.D. Program in Engineering Science and Technology National Kaohsiung University of Science and Technology Kaohsiung Taiwan

ISBN: (数字)9781665403801

ISBN: (纸本)9781665447379

Most audio source separation-related studies have been speech/singing separation, and those on musical instruments separation have been relatively scant. In this research, a stacked recurrent neural network was used to train a model to extract electric guitar sound from mixtures of electric guitar and other musical instruments. Objective assessment scores indicate that the proposed method can extract the electric guitar sounds from the musical mixtures successfully.

关键词： Training Performance evaluation Recurrent neural networks Instruments Music data models Music information retrieval

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Small molecule tractable PARP inhibitors: Scaffold construction approaches, mechanistic insights and structure activity relationship

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Bioorganic Chemistry 2023年 141卷 106893页

作者： Thakur, Amandeep Rana, Mandeep Ritika Mathew, Jacob Nepali, Sanya Pan, Chun-Hsu Liou, Jing Ping Nepali, Kunal School of Pharmacy College of Pharmacy Taipei Medical University Taipei 110031 Taiwan College of Medicine Taipei Medical University Taipei 110031 Taiwan Department of Chemical Engineering National Taiwan University of Science and Technology Taipei 106335 Taiwan Manipal School of Life Sciences Manipal Academy of Higher Education Manipal 576104 India Ph.D. Program in Drug Discovery and Development Industry College of Pharmacy Taipei Medical University Taiwan

diverse drug design strategies viz. molecular hybridization, substituent installation, scaffold hopping, isosteric replacement, high-throughput screening, induction and separation of chirality, structure modifications of phytoconstituents and use of structural templates have been exhaustively leveraged in the last decade to load the chemical toolbox of PARP inhibitors. Resultantly, numerous promising scaffolds have been pinpointed that in turn have led to the resuscitation of the credence to PARP inhibitors as cancer therapeutics. This review briefly presents the physiological functions of PARPs, the pharmacokinetics, and pharmacodynamics, and the interaction profiles of FdA-approved PARP inhibitors. Comprehensively covered is the section on the drug design strategies employed by drug discovery enthusiasts for furnishing PARP inhibitors. The impact of structural variations in the template of designed scaffolds on enzymatic and cellular activity (structure–activity relationship studies) has been discussed. The insights gained through the biological evaluation such as profiling of physicochemical properties and in vitro AdME properties, PK assessments, and high-dose pharmacology are covered. © 2023 Elsevier Inc.

关键词： BRCA mutations Cancer dNA damage Molecular hybridization PARP inhibitors Scaffold hopping Tumor

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YAP-regulated type II alveolar epithelial cell differentiation mediated by human umbilical cord-derived mesenchymal stem cells in acute respiratory distress syndrome

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Biomedicine and pharmacotherapy 2023年第1期159卷 114302-114302页

作者： Chen, Xiao-Yue Chen, Kuan-Yuan Feng, Po-Hao Lee, Kang-Yun Fang, Yu-Ting Chen, You-Yin Lo, Yu-Chun Bhavsar, Pankaj K. Chung, Kian Fan Chuang, Hsiao-Chi Graduate Institute of Medical Sciences College of Medicine Taipei Medical University Taipei Taiwan School of Respiratory Therapy College of Medicine Taipei Medical University Taipei Taiwan National Heart and Lung Institute Imperial College London London United Kingdom Division of Pulmonary Medicine Department of Internal Medicine Shuang Ho Hospital Taipei Medical University New Taipei City Taiwan Division of Pulmonary Medicine Department of Internal Medicine School of Medicine College of Medicine Taipei Medical University Taipei Taiwan Department of Biomedical Engineering National Yang Ming Chiao Tung University Taipei Taiwan The Ph.D. Program for Neural Regenerative Medicine College of Medical Science and Technology Taipei Medical University Taipei Taiwan Industrial Ph.D. Program of Biomedical Science and Engineering National Yang Ming Chiao Tung University Taipei Taiwan Cell Physiology and Molecular Image Research Center Wan Fang Hospital Taipei Medical University Taipei Taiwan

Acute respiratory distress syndrome (ARdS) contributes to higher mortality worldwide. Human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) have immunomodulatory and regenerative potential. However, the effects of hUC-MSCs as an ARdS treatment remain unclear. We investigated the role of hUC-MSCs in the differentiation of type II alveolar epithelial cells (AECII) by regulating Yes-associated protein (YAP) in ARdS. Male C57BL/6JNarl mice were intratracheally (i.t.) administered lipopolysaccharide (LPS) to induce an ARdS model, followed by a single intravenous (i.v.) dose of hUC-MSCs. hUC-MSCs improved pulmonary function, decreased inflammation on day 3, and mitigated lung injury by reducing the lung injury score and increasing lung aeration (%) in mice on day 7 (p < 0.05). hUC-MSCs inactivated YAP on AECII and facilitated cell differentiation by decreasing Pro-surfactant protein C (Pro-SPC) and galectin 3 (LGALS3) while increasing podoplanin (T1α) in lungs of mice (p < 0.05). In AECII MLE-12 cells, both coculture with hUC-MSCs after LPS exposure and the YAP inhibitor, verteporfin, reduced Pro-SPC and LGALS3, whereas the YAP inhibitor increased T1α expression (p < 0.05). In conclusion, hUC-MSCs ameliorated lung injury of ARdS and regulated YAP to facilitate AECII differentiation. © 2023 The Authors

关键词： Alveoli Inflammation Pneumocytes Regeneration Stem cells

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Enhanced electrochemical detection of tartrazine in beverages and liquid soap via nickel phosph.d.-adorned functionalized carbon nanofibers

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Journal of the Taiwan Institute of Chemical Engineers 2024年 157卷

作者： Gokulkumar, Kumar Huang, Song-Jeng Kogularasu, Sakthivel Aljuwayid, Ahmed M. Maheshwaran, Selvarasu Govindasamy, Mani Department of Mechanical Engineering National Taiwan University of Science and Technology Taipei City106335 Taiwan Super micro mass research and technology center Cheng Shiu University Kaohsiung833301 Taiwan Center for Environmental Toxin and Emerging-Contaminant Research Cheng Shiu University Kaohsiung833301 Taiwan Department of Chemistry College of Science King Saud University P. O. Box 2455 Riyadh11451 Saudi Arabia Department of Aeronautics and Astronautics National Cheng Kung University Tainan701 Taiwan International Ph.D. Program In Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan Tamil Nadu Chennai602105 India

Background: Tartrazine (TAT) is a widely used food colorant dye, offering an orange-yellow hue in various products such as foods, cosmetics, and pharmaceuticals. despite its popularity, TAT is banned in several countries due to its potential health risks, including respiratory issues, migraines, and skin allergies. Moreover, TAT is linked with adverse effects on human physiology, including mutagenicity, biliary cirrhosis, changes in liver and kidney functions, and neurodegeneration at varying doses. Consequently, the detection of this food additive is crucial for safeguarding human health and protecting aquatic organisms. Methods: In this study, a novel sensor was developed for the detection of TAT, utilizing a composite material made from nickel phosph.d. decorated with functionalized carbon nanofiber (Ni2P@f-CNF). The Ni2P@f-CNF was synthesized and characterized through several techniques, including X-ray diffraction, X-ray photoelectron spectroscopy, field emission-scanning electron microscopy, and elemental mapping. The composite was then integrated with a glassy carbon electrode to create a sensor. The sensor's performance was evaluated in terms of detection limit, linear range, selectivity, sensitivity, reproducibility, repeatability, and long-term stability. Main Findings: The developed Ni2P@f-CNF composite sensor displayed a lower detection limit of 0.011 µM and a broad linear range from 0.01 to 1875 µM. Its selectivity and sensitivity were exceptional, primarily due to the catalytic activity of the Ni2P@f-CNF composite towards TAT. The sensor also demonstrated excellent reproducibility, repeatability, and notable long-term stability. Importantly, when applied in real-world scenarios, the sensor successfully detected TAT in soft drink and liquid soap samples, yielding high recovery rates between 97.45 % to 99.37 % and 98.26 % to 99.01 %, respectively, underscoring its potential applicability in practical settings. © 2024 Taiwan Institute of Chemical Engineer

关键词： Nickel compounds

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Boron carbide decorated tungsten disulfide nanosheet composite for determination of chloramphenicol in food and pharmaceutical samples

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Microchemical Journal 2024年 203卷

作者： Senthilkumar, dhayanithi Kuo, Chih-Yu Aldossari, Samar A. Govindasamy, Mani Department of Chemical Engineering and Biotechnology National Taipei University of Technology Taipei 10608 Taiwan Department of Chemistry P. O. Box 2455 College of Science King Saud University Riyadh 11451 Saudi Arabia Centre for Applied Research Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences (SIMATS) Tamil Nadu Chennai 602105 India International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan Research Center for Intelligence Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan

Making the nanocomposites of metal oxides or metal sulfides with carbon source materials has a huge impact on the electrochemical determination of toxic chemicals. To determine the adverse side effects of the antibiotics, electrochemical sensors have been used as they can peek into the sensitivity of the drug sample. This work has done the sensitive amperometric evaluation of a chloramphenicol antibiotic by modifying the electrode of tungsten disulfide decorated boron carbide. Here, tungsten disulfide (WS₂) nanosheets and boron carbide (B₄C) materials were synthesized by conventional methods which give a good amount of yield. The composite was prepared by the green and cost-effective sonochemical approach with good morphology. The conductivity of the nanocomposite and the response to chloramphenicol were determined by cyclic voltammetry. The sensitivity, limit of detection (LOd), and the linear range were observed by the highly sensitive amperometric technique. From the amperometric analysis, the prepared nanocomposite shows nominal LOd as a 17.4 nM, a broad linear range (0.025–1134.6 µM), and good sensitivity of 1.52 µA µM⁻¹ cm⁻². Practicability of the modified sensor was studied in food and pharmaceutical samples with adequate recovery performances. Moreover, the modified electrode shows good stability, repeatability, reproducibility, and anti-interfering properties against the array of food and biological interferences. © 2024 Elsevier B.V.

关键词： Amperometric technique Antibiotic detection Boron carbide Food quality test Health analysis Tungsten disulfide

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Ecological Risk Assessment and Corrective Actions of dioxins Polluted Sediment in the Brine Water Storage Pond of Chemical Plant

SSRN

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SSRN 2022年

作者： Huang, Wen-Yen Huang, Chi-Wei Lin, Chitsan Li, Yi-Lin Huang, Tsung-Po Bui, Xuan-Thanh Ngo, Huu Hao Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Ph.D. Program in Maritime Science and Technology College of Maritime National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan 268 Ly Thuong Kiet Street District 10 Ho Chi Minh City700000 Viet Nam Linh Trung Ward Ho Chi Minh City700000 Viet Nam School of Civil and Environmental Engineering University of Technology Sydney SydneyNSW2007 Australia

despite the high toxicity of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCdd/Fs, or dioxins), the case studies about PCdd/Fs contamination in sediment are still few and its ecological impacts are not fully elucidated. To improve the risk management of PCdd/Fs pollution in sediment, the present study conducted the environmental risk assessment of the brine water storage pond near a chemical plant with high PCdd/Fs pollution potential before and after corrective actions. The results showed the PCdd/Fs accumulation in the fish and crab from the brine water storage pond, and the PCdd/Fs concentrations in biota were all higher than the food safety standard in Taiwan (3.5 pg-TEQ/g). Furthermore, the different indexes showed high degree of pollution including contamination factor (CF), modified degree of contamination (mCd), and pollution index (PI) in the PCdd/Fs polluted sediment. High biological risk indexes such as potential ecological risk index (RI) and risk quotient (RQ) were also observed in the PCdd/Fs contaminated sediment before the corrective actions. After the corrective actions such as institutional/engineering control and remediation, the CF, mCd, and PI decreased by 20–41%. The RI and RQ were also decreased by 41–56%. In conclusion, the corrective actions applied in the present study could help decrease the pollution and ecological risk of PCdd/Fs in the polluted sediment of the study site, which might further decrease the environmental risk to an acceptable level for the stakeholders if keeping implementation of the corrective actions. © 2022, The Authors. All rights reserved.

关键词： Risk management

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The mitochondrial stress signaling tunes immunity from a view of systemic tumor microenvironment and ecosystem

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iscience 2024年第9期27卷

作者： Kuo, Cheng-Liang Lin, Ying-Chen Lo, Yu Kang Lu, Yu-Zhi Babuharisankar, Ananth Ponneri Lien, Hui-Wen Chou, Han-Yu Lee, Alan Yueh-Luen National Institute of Cancer Research National Health Research Institutes Miaoli Zhunan 35053 Taiwan Department of Life Sciences College of Health Sciences & Technology National Central University Taoyuan Zhongli 32001 Taiwan Ph.D. Program in Tissue Engineering and Regenerative Medicine College of Medicine National Chung Hsing University Taichung 40402 Taiwan Graduate Institute of Biomedical Sciences China Medical University Taichung 40402 Taiwan Department of Biotechnology College of Life Science Kaohsiung Medical University Kaohsiung 80708 Taiwan

Mitochondria play important roles in cell fate, calcium signaling, mitophagy, and the signaling through reactive oxygen species (ROS). Recently, mitochondria are considered as a signaling organelle in the cell and communicate with other organelles to constitute the mitochondrial information processing system (MIPS) that transduce input-to-output biological information. The success in immunotherapy, a concept of systemic therapy, has been proved to be dependent on paracrine interactions within the tumor microenvironment (TME) and distant organs including microbiota and immune components. We will adopt a broader view from the concept of TME to tumor micro- and macroenvironment (TM²E) or tumor-organ ecosystem (TOE). In this review, we will discuss the role of mitochondrial signaling by mitochondrial ROS, calcium flux, metabolites, mtdNA, vesicle transportation, and mitochondria-derived peptide in the TME and TOE, in particular immune regulation and effective cancer immunotherapy. © 2024 The Author(s)

关键词： Cancer Immune response Microenvironment

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Electrochemical detection of antimalarial drug (Amodiaquine) using dy-MOF@MWCNTs composites to prevent erythrocytic stages of plasmodium species in human bodies

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Microchemical Journal 2024年 202卷

作者： Peter, X. Thatheyus Kuo, Chih-Yu Malar, P. Govindasamy, Mani Rajaji, Umamaheswari Yusuf, Kareem Thinfilm Photovoltaics Laboratory Department of Physics and Nanotechnology SRM Institute of Science and Technology Tamil Nadu Kattankulathur 603203 India Department of Chemical Engineering and Biotechnology National Taipei University of Technology Taipei Taiwan International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan Research Center for Intelligence Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan Centre for Applied Research Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences (SIMATS) Tamil Nadu Chennai 602105 India Department of Chemistry College of Science King Saud University Riyadh 11451 Saudi Arabia

Herein, we report on fabrication of dysprosium-based metal–organic framework (dy-MOF)@multiwalled carbon nanotubes (MWCNT) composites modified with glassy carbon electrode (dy-MOF@MWCNT/GC) as a working electrode for Antimalarial drug detection. dy-MOF@MWCNT composites was prepared by sonochemical process along with ultrasonication. The composite structure, phase purity, morphology and composition of the composites were confirmed by X-ray diffraction, Scanning electron microscope, and X-ray photoelectron spectroscopy. Further, dy@MWCNT composites were deposited on a glassy carbon electrode by drop casting method, and used as an electrode material to efficiently detect Amodiaquine (Add) by electrochemical techniques such as CV and dPV. The as-prepared dy@MWCNT composite material showed the oxidation peak current of Add to be ∼ 60 % higher than other unmodified GC electrodes and showed a low charge transfer resistance (R_ct) of 24 Ω. The dy@MWCNT provided a broad linear range of 0.4 to 20 µM with a limit of detection of 0.377 μM and sensitivity of 1.817 μA.μM⁻¹ for the detection of Add. According to the ph study, the amount of electrons and protons involved in the electrochemical processes of Add was calculated and a plausible mechanism for Add electro-oxidation was proposed. Thus, the prepared sensor exhibited practical usefulness by determining the Add drug in human urine samples. Hence, the results shows that the dy@MWCNT- modified sensor has good electrocatalytic activity for the redox of Add. © 2024 Elsevier B.V.

关键词： Amodiaquine Antimalarial drug Carbon nanomaterials Electrochemical sensor Metal organic framework

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