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Integrating subvolume dose and myocardial perfusion imaging parameters to assess the impact of radiation therapy on heart function in breast cancer patients: A comparative analysis between left- and right-sided breast cancer

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Thoracic Cancer 2023年第26期14卷 2696-2706页

作者： Wang, Shan-Ying Tsai, Wei-Ta Lin, Kuan-Heng Yu, Chih-Wei Yang, Shu-Ya Shueng, Pei-Wei Wu, Yen-Wen Hsu, Chen-Xiong Wu, Tung-Hsin Department of Biomedical Imaging and Radiological Sciences National Yang Ming Chiao Tung University Taipei Taiwan Department of Nuclear Medicine Far Eastern Memorial Hospital New Taipei City Taiwan Department of Radiation Oncology Dalin Tzu Chi Hospital Buddhist Tzu Chi Medical Foundation Chiayi Taiwan Division of Radiation Oncology Department of Radiology Far Eastern Memorial Hospital New Taipei City Taiwan Industrial Ph.D. Program of Biomedical Science and Engineering National Yang Ming Chiao Tung University Taipei Taiwan Department of Radiation Oncology China Medical University Hsinchu Hospital Zhubei City Taiwan Institute of Nuclear Engineering and Science National Tsing Hua University Hsinchu City Taiwan Department of Nuclear Medicine Cheng Hsin General Hospital Taipei Taiwan School of Medicine College of Medicine National Yang Ming Chiao Tung University Taipei Taiwan Division of Cardiology Cardiovascular Medical Center Far Eastern Memorial Hospital New Taipei City Taiwan

Background: This study aimed to utilize an innovative method of integrating the 20 subvolume dose of left ventricle and the Tl-201 single photon emission computed tomography (SPECT) with myocardial perfusion imaging (MPI) parameters in patients with left- and right-sided breast cancer after radiation therapy. Methods: Female patients with breast cancer underwent SPECT MPI before commencing radiotherapy and 12 months later were enrolled from January 2014 to december 2018. The images of CT simulation and SPECT MPI were integrated into the treatment planning system. The differences of doses and parameters of MPI in all cardiac subvolumes between left- and right-sided breast cancer patients were analyzed. Results: Patients with left-sided breast cancer (n = 61) received a higher radiation dose to the heart, left ventricular, and its territories and subvolumes, compared to patients with right-sided breast cancer (n = 19). The 20-segment analysis also showed statistically significant disparities in the average radiation doses received by the two groups. In different coronary artery territories, the end-diastolic perfusion and end-systolic perfusion showed a decrease in both sides, with no significant differences. However, the wall motion and wall thickening showed a significant decline in subregions within the left- and right-sided coronary artery territories. Conclusion: This study demonstrates an innovative integrated method combining the left ventricular 20 regional doses with SPECT MPI which shows that left-sided breast cancer patients receive a higher subvolume dose than right-sided breast cancer patients. Further research is needed to confirm the potential impact on heart function after radiotherapy on both sides. © 2023 The Authors. Thoracic Cancer published by China Lung Oncology Group and John Wiley & Sons Australia, Ltd.

关键词： myocardial perfusion imaging radiation therapy subvolume dose

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A mini-review on plasticrusts: occurrence, current trends, potential threats, and recommendations for coastal sustainability

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Environmental Monitoring and Assessment 2024年第2期196卷 137-137页

作者： Nguyen, Minh-Ky Rakib, Md. Refat Jahan Nguyen, Hoang-Lam Lin, Chitsan Malafaia, Guilherme Idris, Abubakr M. Faculty of Environment and Natural Resources Nong Lam University of Ho Chi Minh City Hamlet 6 Linh Trung Ward Thu Duc City Ho Chi Minh City700000 Viet Nam Ph.D. Program in Maritime Science and Technology National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Department of Fisheries and Marine Science Faculty of Science Noakhali Science and Technology University Sonapur Noakhali3814 Bangladesh Department of Civil Engineering McGill University Montreal Canada Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil Department of Chemistry College of Science King Khalid University Abha62529 Saudi Arabia King Khalid University Abha62529 Saudi Arabia

Plasticrusts manifest as a coating on intertidal rocks due to environmental exposure. They refer to crushed plastic debris that blankets rocks found along intertidal shorelines. This study significantly contributes to a better understanding of the occurrence of these novel plastic formations, shedding light on their potential pathways of formation during the Anthropocene era. The research provides comprehensive insights into the composition, origins, challenges, and effective management strategies for removing coastal plastic litter. The findings of this investigation offer valuable evidence regarding the formation and impact of these recently discovered plastic items in coastal regions, prompting discussions about their formation processes and their effects on the marine ecosystem. Recognizing that these newly emerged plastic litter pose a considerable threat to the marine environment is crucial. With their emergence, we face an environmental challenge, especially concerning the health of coastal ecosystems. Plasticrusts, when degraded, can release microplastics (MPs) and nanoparticles (NPs) into the surrounding environment. These micro- and nano-sized plastic particles pose significant ecological risks as they persist in ecosystems, potentially harming wildlife and entering the food chain, causing widespread environmental contamination. Significantly, it outlines strategies to minimize the impact of this emerging plastic debris and its source. © 2024, The Author(s), under exclusive licence to Springer Nature Switzerland AG.

关键词： Ecosystems

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Biomechanical comparisons of dynamic fixators with rod-rod and screw-spacer joints on lumbar hybrid fixation

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Clinical Biomechanics 2023年 104卷 105943-105943页

作者： Xu, Yu-Kun Weng, Pei-Wei Chen, Shih-Hao Lin, Shang-Chih Graduate Institute of Applied Science and Technology National Taiwan University of Science and Technology Taipei Taiwan Graduate Institute of Biomedical Engineering National Taiwan University of Science and Technology Taipei Taiwan Department of Orthopedics Shuang Ho Hospital Taipei Medical University Taipei Taiwan International Ph.D. Program in Biomedical Engineering College of Biomedical Engineering Taipei Medical University Taipei Taiwan Department of Orthopaedics School of Medicine College of Medicine Taipei Medical University Taipei Taiwan Research Center of Biomedical Device Taipei Medical University Taipei Taiwan Tzu Chi General Hospital at Taichung and Tzu Chi University Taiwan

Background: Hybrid fixators with quite different joint design concepts have been widely to suppress adjacent segment degeneration problems. The kinematic and kinetic responses of the adjacent and transition segments and contact behaviors at the bone-screw interfaces served as the objective of this study. Methods: The moderately degenerated L4/L5 and mildly degenerative L3/L4 segments were respectively immobilized by a static fixator and further bridged by the rod-rod (Isobar) and screw-spacer (dynesys) fixator. The joint stiffness and mobility of the rod-rod system and the cable pretension of the screw-spacer system were systematically varied. Findings: The flexion of the screw-spacer system provided higher mobility to the transition segment, reducing adjacent-segment problems. The cable pretension had a minor effect on the construct behavior. However, due to limited joint mobility, the rod-rod system showed higher constraints to the transition segment and induced more adjacent-segment compensations. The increased mobility of the rod-rod joint caused it to behave as a more dynamic fixator that increased adjacent-segment compensations at the transition segment. Comparatively, increasing the joint mobility showed more significant effects on the construct behaviors than decreasing the joint stiffness. Furthermore, increased constraint by the rod-rod joint induced higher stress and risk of loosening at the bone-screw interfaces Interpretation: If the protection of the transition segment is the major concern, the rod-rod system can be used to constrain the intervertebral motion and share the higher loads through the fixator. Otherwise, the screw-spacer system is recommended in situations where higher loads onto the transition disc are allowable. © 2023 Elsevier Ltd

关键词： Screws

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Seasonal influence on pollution index and risk of multiple compositions of microplastics in an urban river

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science of the Total Environment 2023年第PT 1期859卷 160021页

作者： Huang, Chi-Wei Li, Yi-Lin Lin, Chitsan Bui, Xuan-Thanh Vo, Thi-dieu-Hien 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 City Viet Nam Linh Trung ward Ho Chi Minh City700000 Viet Nam Faculty of Environmental and Food Engineering Nguyen Tat Thanh University Ho Chi Minh City Viet Nam School of Civil and Environmental Engineering University of Technology Sydney SydneyNWS2007 Australia

Emerging contaminant microplastics (MPs) are getting worldwide attention for their ubiquitous occurrence and potential risk to the environment. However, the seasonal influence on freshwater MP pollution remains poorly understood. To better understand and evaluate the riverine MPs in different seasons, this study conducted the risk assessment of MPs in an urban river, Houjin River, during the different seasons. The present study found that the MPs (0.1–5 mm, mostly 0.1–2 mm) were more abundant in the dry season (183.33 ± 128.95 items/m3) compared with the wet season (102.08 ± 45.80 items/m3). Similarly, the mixture of different MPs polymers was more diverse in the dry season. The related pollution indices such as the contamination factor (CF) and pollution load index (PLI) showed that average CF and PLI were 5.15 and 2.10 in the dry season, which significantly decreased to 1.58 and 1.25, respectively, in the wet season (p © 2022 Elsevier B.V.

关键词： Risk assessment

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Optically Tunable Many-Body Exciton-phonon Quantum Interference

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Advanced science 2024年第40期11卷 e2404741页

作者： Chang, Si-Jie Huang, Po-Chun Su, Jia-Sian Hsieh, Yu-Wei Quiroz Reyes, Carlos Jose Fan, Ting-Hsuan Sun, Han-Sheng Nguyem, Ai-phuong Liu, Te-I Cheng, Ho-Wen Lin, Ching-Wei Hayashi, Michitoshi Yong, Chaw-Keong Department of Physics National Taiwan University Taipei10617 Taiwan Institute of Atomic and Molecular Sciences Academia Sinica Taipei106319 Taiwan International Ph.D. Program in Biomedical Engineering College of Biomedical Engineering Taipei Medical University New Taipei235603 Taiwan Department of Chemistry National Tsing Hua University Hsinchu300044 Taiwan International Graduate Program of Molecular Science and Technology National Taiwan University Taipei106319 Taiwan Center for Condensed Matter Sciences National Taiwan University Taipei10617 Taiwan Center of Atomic Initiative for New Materials National Taiwan University Taipei10617 Taiwan National Center for Theoretical Sciences Taipei10617 Taiwan

This study introduces a novel paradigm for achieving widely tunable many-body Fano quantum interference in low-dimensional semiconducting nanostructures, beyond the conventional requirement of closely matched energy levels between discrete and continuum states observed in atomic Fano systems. Leveraging Floquet engineering, the remarkable tunability of Fano lineshapes is demonstrated, even when the original discrete and continuum states are separated by over 1 eV. Specifically, by controlling the quantum pathways of discrete phonon Raman scattering using femtosecond laser pulses, the Raman intermediate states across the excitonic Floquet band are tuned. This manipulation yields continuous transitions of Fano lineshapes from antiresonance to dispersive and to symmetric Lorentzian profiles, accompanied by significant variations in Fano parameter q and Raman intensity spanning 2 orders of magnitude. A subtle shift in the excitonic Floquet resonance is further shown, achieved by controlling the intensity of the femtosecond laser, which profoundly modifies quantum interference strength from destructive to constructive interference. The study reveals the crucial roles of Floquet engineering in coherent light-matter interactions and opens up new avenues for coherent control of Fano quantum interference over a broad energy spectrum in low-dimensional semiconducting nanostructures. © 2024 The Author(s). Advanced science published by Wiley-VCH GmbH.

关键词： Femtosecond lasers

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Ultrasound-guided drug delivery system utilizing piezocatalytic MoS2 nanomaterials for anti-inflammatory therapy

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Nano Energy 2024年 127卷

作者： Lin, Ssu-Chi Joshi, Ravindra Ganguly, Anindita Barman, Snigdha Roy Pal, Arnab Kaswan, Kuldeep Liu, Kuei-Lin Nain, Amit Kao, Fu-Cheng Lin, Zong-Hong Department of Biomedical Engineering National Taiwan University Taipei10167 Taiwan Institute of Biomedical Engineering National Tsing Hua University Hsinchu30013 Taiwan Department of Power Mechanical Engineering National Tsing Hua University Hsinchu30013 Taiwan Internet of Senses Research Center National Tsing Hua University Hsinchu30013 Taiwan International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu30013 Taiwan Department of Materials Engineering Indian Institute of Science Karnataka Bangalore560012 India Department of Orthopaedic Surgery Chang Gung Memorial Hospital Taoyuan33305 Taiwan College of Medicine Chang Gung University Taoyuan33302 Taiwan

Traditional drug delivery systems lack the potential of controlled drug release, thereby decreasing drug utilization and release efficiency. Herein, a next generation of stimuli-responsive drug delivery platform is designed based on piezocatalytic molybdenum disulfide nanoflowers (MoS2 NFs) which can be triggered by ultrasound (US) stimulation for effective acute inflammation therapy. Under US irradiation, MoS2 NFs undergoes piezocatalysis to generate reactive oxygen species (ROS) owing to piezoelectric polarization, thus releasing loaded anti-inflammatory drug Indomethacin (INd) to the targeted inflammation site. The cumulative release of INd elevated significantly with the increase in the duration for US exposure due to the amplified ROS generation, which displayed a highly controllable nature of the as-designed drug delivery platform. For convenient applications, the INd loaded MoS2 NFs (INd@MoS2 NFs) was functionalized onto commercial dressings and their tunable in-vivo drug release performance was demonstrated in paw edema model. INd@MoS2 NFs upon US irradiation, controllably released INd into the site-specific inflamed paw which significantly inhibited 56 % of paw swelling in 6 h by suppressing the infiltration of neutrophils and expression of pro-inflammatory cytokines such as tumor necrosis factor-α (TNF-α). The highly controllable drug delivery system holds great potential in facilitating personalized, user-friendly theranostic applications with improved patient outcomes. © 2024 Elsevier Ltd

关键词： Ultrasonics

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defect engineering Centrosymmetric 2d material Flexocatalysts

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Small 2024年第31期20卷 2401116-2401116页

作者： Chen, Yu-Ching Chen, Po-Han Liao, Yin-Song Chou, Jyh-Pin Wu, Jyh Ming Department of Materials Science and Engineering National Tsing Hua University 101 Section 2 Kuang Fu Road Hsinchu300 Taiwan Ph.D. Program in Prospective Functional Materials Industry National Tsing Hua University 101 Section 2 Kuang Fu Road Hsinchu300 Taiwan Tsing Hua Interdisciplinary Program National Tsing Hua University 101 Section 2 Kuang Fu Road Hsinchu300 Taiwan Department of Physics National Changhua University of Education No. 1 Jin-De Road Changhua500 Taiwan High Entropy Materials Center National Tsing Hua University 101 Section 2 Kuang Fu Road Hsinchu300 Taiwan

In this study, the flexoelectric characteristics of 2d TiO2 nanosheets are examined. The theoretical calculations and experimental results reveal an excellent strain-induced flexoelectric potential (flexopotential) by an effective defect engineering strategy, which suppresses the recombination of electron–hole pairs, thus substantially improving the catalytic activity of the TiO2 nanosheets in the degradation of Rhodamine B dye and the hydrogen evolution reaction in a dark environment. The results indicate that strain-induced bandgap reduction enhances the catalytic activity of the TiO2 nanosheets. In addition, the TiO2 nanosheets degraded Rhodamine B, with kobs being ≈1.5 × 10−2 min−1 in dark, while TiO2 nanoparticles show only an adsorption effect. 2d TiO2 nanosheets achieve a hydrogen production rate of 137.9 µmol g−1 h−1 under a dark environment, 197% higher than those of TiO2 nanoparticles (70.1 µmol g−1 h−1). The flexopotential of the TiO2 nanosheets is enhanced by increasing the bending moment, with excellent flexopotential along the y-axis. density functional theory is used to identify the stress-induced bandgap reduction and oxygen vacancy formation, which results in the self-dissociation of H2O on the surface of the TiO in the dark. The present findings provide novel insights into the role of TiO2 flexocatalysis in electrochemical reactions. © 2024 Wiley-VCH GmbH.

关键词： Titanium dioxide

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An Innovative Real-Time Cell Viability Analysis: A Cutting-Edge Flexible Bioimpedance Sensor

SSRN

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SSRN 2023年

作者： Chou, Hsin-Yu Ching, Congo Tak-Shing Huang, Hui-Xuan phan, Thien Luan Wang, Hui-Min david Department of Materials Science and Engineering National Chung Hsing University Taichung40227 Taiwan Ph.D. Program in Tissue Engineering and Regenerative Medicine National Chung Hsing University Taichung402 Taiwan Graduate Institute of Biomedical Engineering National Chung Hsing University Taichung40227 Taiwan Department of Electrical Engineering National Chi Nan University Nantou54561 Taiwan Department of Physic and Electronic Engineering Faculty of Physic and Engineering Physic Vietnam National University Ho Chi Minh City University of Science Viet Nam Graduate Institute of Medicine College of Medicine Kaohsiung Medical University Kaohsiung807 Taiwan Department of Medical Laboratory Science and Biotechnology China Medical University Taichung City404 Taiwan

There are many compounds to be used to treat cancer but still only 20% of proposed anticancer agents have been commercialized after clinical trials due to serious side effects and unsatisfactory results. To screen potential drugs precisely and quickly, this study develops a flexible bioimpedance sensor. The sensor is positive to detect the half maximal inhibitory concentration (IC50) of drugs real-time by analyzing phase angle changes during cell mortality. The best results are achieved using a probe separation of A12B34 at logarithmic frequencies of 163 Hz and 77.87 kHz. At these two frequencies, there is a linear relationship with the phase angle at 0% and 50% of the dead cells. dividing the phase angle at the two frequencies shows a 17.98% change in the phase angle, which allows self-correction and insensitivity to the number of cells. A custom phase angle measurement device is developed for detection at 163 Hz and 77.87 kHz, respectively. This study develops a novel sensor that is precise, fast and allows high throughput analysis to detect the inhibition of cancer in real-time. This sensor is an alternative to traditional chemical detection methods because it is faster, cheaper and more accurate. © 2023, The Authors. All rights reserved.

关键词： Chemical detection

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Effects of molecular weight fraction on antioxidation capacity of rice protein hydrolysates

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Scientific Reports 2023年第1期13卷 1-11页

作者： Chen, Hui-Ju dai, Fan-Jhen Chen, Cheng-You Fan, Siao-Ling Zheng, Ji-Hong Chau, Chi-Fai Lin, Yung-Sheng Chen, Chin-Shuh Department of Food Science and Biotechnology National Chung Hsing University Taichung 402204 Taiwan Healthmate Co. Ltd Changhua 500016 Taiwan Ph.D. Program in Materials and Chemical Engineering National United University Miaoli 360302 Taiwan Department of Chemical Engineering National United University Miaoli 360302 Taiwan Institute of Food Safety and Health Risk Assessment National Yang Ming Chiao Tung University Taipei 112304 Taiwan

Rice protein was used as a starting material to provide rice protein hydrolysates (Rph) through enzyme-assisted extraction. Rph was further fractionated using ultrafiltration membrane (UF) and classified by molecular weight (MW;MW < 1 kda, MW 1–10 kda, and MW > 10 kda). Peptides with MW < 1 kda possessed superior antioxidant properties (p < 0.05). Therefore, UF demonstrated great efficacy in selectively separating antioxidant peptides. A Pearson correlation analysis revealed that the total phenolic concentration was correlated with oxygen radical absorbance capacity (ORAC;r = 0.999, p < 0.05). Amino acid contents had negative correlations with the scavenging activity (specifically, IC50) of 1,1-diphenyl-2-picrylhydrazyl and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) radicals (r = − 0.986 to − 1.000). Reducing power was related to aromatic amino acid contents (r = 0.997, p < 0.05). In this study, enzymatic hydrolysis was discovered to be an effective method of extracting and isolating natural antioxidant proteins from broken rice, thus preserving the nutritional quality of rice and making those proteins more accessible in future applications. © 2023, The Author(s).

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Fabrication of tantalum silicate films with low TCR and low resistivity by magnetron sputtering

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Vacuum 2024年 226卷

作者： Chen, Cheng-Lung Huang, Cheng Chen, Sheng-Chi Liu, Yen-Chen Chuang, Min-Chen Wen, Chao-Kuang Huang, Wei-Sheng Yang, Wen-Sheng Chen, Yang-Yuan Graduate School of Materials Science National Yunlin University of Science and Technology Yunlin64002 Taiwan Department of Materials Engineering and Center for Plasma and Thin Film Technologies Ming Chi University of Technology 243 New Taipei City Taiwan College of Engineering and Center for Green Technology Chang Gung University 333 Taoyuan Taiwan International Ph.D. Program in Plasma and Thin Film Technology Ming Chi University of Technology 243 New Taipei City Taiwan TPH Research & Develop Dept. Chien Hwa Coating Technology Inc. Hsinchu300 Taiwan National Engineering Research Center for Rare Earth Materials Grirem Advanced Materials Co. Ltd. General Research Institute for Nonferrous Metals Beijing100088 China Institute of Physics Academia Sinica 115 Taipei Taiwan

Tantalum silicate (Ta–Si–O) thin film materials have gained significant interest in hybrid renewable energy systems and thin-film resistors due to their exceptional thermal stability and adjustable electrical properties. In this study, we investigated the effects of target compositions and sputtering power densities on the material structures, chemical compositions, microstructures, and electrical properties of Ta–Si–O films. Two target compositions, Ta65(SiO2)35 and Ta80(SiO2)20, were utilized in the deposition process. Notably, we observed substantial variations in the temperature coefficient of resistance (TCR) value and resistivity of Ta–Si–O thin films with different Ta concentrations. Most importantly, when the Ta content of the film is controlled at 62 ± 0.6 % by using this target, the resistivity of the Ta0.62Si0.20O0.18 film can be as small as 2.31 ± 0.05 × 10−4 Ω-cm and has an extremely small TCR of 22 ± 0.4 ppm/°C, which shows an excellent opportunity for the development of precision thin film resistors. A TCR value close to zero can be finely tuned by controlling the Ta concentration in the Ta–Si–O film. These intriguing electrical behaviors were found to be highly correlated with the predominant formation of metallic Ta5Si3 as the main structural phase in the films. This work presents a simple and effective approach to produce Ta–Si–O thin films with near-zero TCR, making them highly suitable for applications under high-temperature conditions. Our findings contribute to the development of tailored thin film materials with desirable electrical properties for advanced electronic and energy devices. © 2024 Elsevier Ltd

关键词： Thin films

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