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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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Potential PCR amplification bias in identifying complex ecological patterns: Higher species compositional homogeneity revealed in smaller-size coral reef zooplankton by metatranscriptomics

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Molecular Ecology Resources 2024年第3期24卷 e13911页

作者： Mattos, Felipe M. G. dreyer, Niklas Fong, Chia-Ling Wen, Yung-Hui Victoria Jain, dharmesh de Vivo, Mattia Huang, Yu-Sin Mwihaki, John Karichu Wang, Tzi-Yuan Ho, Ming-Jay Tsai, Isheng Jason Wang, John Chan, Benny K. K. Machida, Ryuji J. Biodiversity Research Center Academia Sinica Taipei Taiwan Department of Life Science National Taiwan Normal University Taipei Taiwan Biodiversity Program Taiwan International Graduate Program Academia Sinica and National Taiwan Normal University Taipei Taiwan Natural History Museum of Denmark Invertebrate Zoology University of Copenhagen Copenhagen Denmark Institute of Plant and Microbial Biology Academia Sinica Taipei Taiwan Ph.D. Program in Microbial Genomics National Chung Hsing University and Academia Sinica Taipei Taiwan Graduate Institute of Biotechnology National Chung Hsing University Taichung Taiwan Molecular and Biological Agricultural Sciences Taiwan International Graduate Program Academia Sinica and National Chung Hsing University Taipei Taiwan

PCR-based high-throughput sequencing has permitted comprehensive resolution analyses of zooplankton diversity dynamics. However, significant methodological issues still surround analyses of complex bulk community samples, not least as in prevailing PCR-based approaches. Marine drifting animals—zooplankton—play essential ecological roles in the pelagic ecosystem, transferring energy and elements to higher trophic levels, such as fishes, cetaceans and others. In the present study, we collected 48 size-fractionated zooplankton samples in the vicinity of a coral reef island with environmental gradients. To investigate the spatiotemporal dynamics of zooplankton diversity patterns and the effect of PCR amplification biases across these complex communities, we first took metatranscriptomics approach. Comprehensive computational analyses revealed a clear pattern of higher/lower homogeneity in smaller/larger zooplankton compositions across samples respectively. Our study thus suggests changes in the role of dispersal across the sizes. Next, we applied in silico PCR to the metatranscriptomics datasets, in order to estimate the extent of PCR amplification bias. Irrespective of stringency criteria, we observed clear separations of size fraction sample clusters in both metatranscriptomics and in silico datasets. In contrast, the pattern—smaller-fractioned communities had higher compositional homogeneity than larger ones—was observed in the metatranscriptomics data but not in the in silico datasets. To investigate this discrepancy further, we analysed the mismatches of widely used mitochondrial CO1 primers and identified priming site mismatches likely driving PCR-based biases. Our results suggest the use of metatranscriptomics or, although less ideal, redesigning the CO1 primers is necessary to circumvent these issues. © 2023 The Authors. Molecular Ecology Resources published by John Wiley & Sons Ltd.

关键词： coral reef diversity in silico PCR metatranscriptomics size fraction zooplankton

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The Mid-Infrared Region Absorption of Graphene-based photodetector with Au-grating Structure

The Mid-Infrared Region Absorption of Graphene-based Photode...

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IEEE International Conference on Nano/Molecular Medicine and Engineering (NANOMEd)

作者： Wei-Yu Long Kuan-Chou Lin Yu-Xuan Lu Chih-Ting Lin B.S. degree from the Department of Electrical Engineering from National Taiwan University. He is currently a Ph.D candidate in the Graduate School of Advanced Technology National Taiwan University B.S. degree in civil engineering from National Taiwan University and M.S. degree in Institute of Electronics Engineering National Taiwan University B.S. degree from the Department of Materials Science and Engineering from Central South University China B.S. degree in civil engineering from National Taiwan University the M.S. degree in Institute of Applied Mechanics from National Taiwan University and the Ph.D. degree in electrical engineering and computer science University of Michigan Ann Arbor MI USA

Graphene, a single layer of carbon atoms arranged in a two-dimensional honeycomb lattice, has garnered immense attention for its exceptional electrical conductivity, transparency, and mechanical strength. These properties make graphene an ideal candidate for photodetectors, as it can efficiently convert incident photons into electrical signals. The integration of graphene into surface plasmonic devices has opened up new avenues for photodetection technology. In our research, we combine graphene and surface plasmonic devices to realize a high responsivity mid-infrared graphene photodetector with a grating metal/graphene/SiO 2 structure. The Bruker Vertex70 Fourier-transform infrared spectroscopy (FTIR) was used for the mid-infrared spectrum measurement. With different linewidth of Au grating structure, the peak of absorption redshifts as the grating linewidth increases and the intensity is also different. Further, by adding graphene, the total absorption increases. due to these advantages, the Au-grating graphene device can be used as infrared photodetectors.

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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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Assessing the skin-whitening property of plant extracts from taiwanese species using zebrafish as a rapid screening platform

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Arabian Journal of Chemistry 2023年第9期16卷

作者： Hsiao, Sui-Wen Kuo, I-Chih Syu, Li-Ling Lee, Tzong-Huei Cheng, Chia-Hsiung Mei, Hui-Ching Lee, Ching-Kuo Ph.D. Program in Drug Discovery and Development Industry College of Pharmacy Taipei Medical University Taipei11031 Taiwan School of Biomedical Engineering University of British Columbia VancouverBC Canada Graduate Institute of Pharmacognosy Taipei Medical University Taipei11031 Taiwan Institute of Fisheries Science National Taiwan University Taipei10617 Taiwan Department of Biochemistry and Molecular Cell Biology School of Medicine College of Medicine Taipei Medical University Taipei11031 Taiwan Department of Science Education National Taipei University of Education Taipei10671 Taiwan School of Pharmacy Taipei Medical University Taipei11031 Taiwan

Zebrafish can be used as a phenotype-based fast-screening platform for the discovery of skin-whitening products by observing the formation of melanin in vivo through a dissecting microscope. In this study, we first evaluated commercial whitening ingredients to confirm the potency of the zebrafish model. The zebrafish screening system verified that verbascoside and 5 other commonly used commercial skin-whitening compounds– including sodium ascorbate, azelaic acid, transamin, kojic acid, and PTU- significantly reduce melanin content in a dose-dependent manner. We subsequently conducted preliminary screening of 123 natural sources to identify those with whitening property. Through a two-step screening process, anti-melanogenesis effects of 4 and 9 candidates at low and high concentration were verified respectively. The toxicity, mortality, and malformation of zebrafish embryo were also evaluated. We further investigated the components of C. manghas L. and found 6 major compounds, one of which was manghaslin, a compound known for its melanin-suppressing effect on zebrafish without cytotoxicity. With these properties, manghaslin is a promising candidate as a skin lightening agent or a treatment for melanoma. © 2023 The Authors

关键词： Melanin

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Snake-Scale Stimulated Robust Biomimetic Composite Triboelectric Layer for Energy Harvesting and Smart Health Monitoring

SSRN

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SSRN 2023年

作者： Lin, Zong-Hong Huang, Ming-Zheng Parashar, Parag Chen, An-Rong Shi, Shih-Chen Tseng, Yao-Hsuan Lim, Kee Chin Yeh, Hsuan-Yu Pal, Arnab Institute of Biomedical Engineering National Tsing Hua University Hsinchu30013 Taiwan Department of Biomedical Engineering National Taiwan University Taipei10617 Taiwan Department of Chemical Engineering National Taiwan University Taipei10617 Taiwan Department of Materials Science and Engineering National Tsing Hua University Hsinchu30013 Taiwan Department of Mechanical Engineering National Cheng Kung University Tainan70101 Taiwan International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu30013 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 hours. 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. © 2023, The Authors. All rights reserved.

关键词： Nanogenerators

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Enhancement of Second Harmonic Generation in Monolayer WS2 by Feedback-Based Wavefront Shaping

arXiv

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arXiv 2025年

作者： Berger, Russell Mavian, Alex dimitrov, Edgar Zhang, Na Rumman, Nazifa Bassène, Pascal Terrones, Humberto Wertz, Esther A. Terrones, Mauricio Fohtung, Edwin N’Gom, Moussa Department of Physics Applied Physics and Astronomy Rensselaer Polytechnic Institute TroyNY12180 United States Department of Physics The Pennsylvania State University University ParkPA16802 United States Department of Electrical Computer and Systems Engineering RPI TroyNY United States The Shirley Ann Jackson Ph.D. Center for Biotechnology and Interdisciplinary Studies RPI TroyNY United States Department of Materials Science and Engineering Rensselaer Polytechnic Institute TroyNY12180 United States RPI 6015 Low Center TroyNY United States Center for Ultrafast Optical Science University of Michigan Ann ArborMI48109-2102 United States

Two-dimensional Transition-Metal dichalcogenides (TMds) are of great interest for second harmonic (SH) generation due to their large second-order susceptibility (χ(2)), atomically thin structure, and relaxed phase-matching conditions. TMds are also promising candidates for miniaturizing nonlinear optical devices due to their versatile applications in photon manipulation, quantum emission and sensing, and nanophotonic circuits. However, their strong SH response is limited by nanometer-scale light-matter interaction and material impurities. Although there is considerable work towards engineering TMds for enhancing their nonlinear responses, all-optical methods are still in the exploration stages. In this work, we incorporate, to the best of our knowledge, the first experimental demonstrations of feedback-based wavefront shaping (WFS) techniques in atomically thin media to reveal and enhance the weak SH generation of monolayer WS2. phase tuning of the incident wavefront leads to localized regions of high-intensity fundamental light, increasing the intensity of SH generation by up to an order of magnitude in targeted regions. We enhance the local conversion efficiencies from monolayer WS2 up to 41× from phase-only modulation. Furthermore, by introducing a shift in the transverse phase structure, we generate observable SH generation at the destructively interfering grain boundaries of polycrystalline monolayers. This method allows for all-optical tuning of TMds nonlinear responses, opening up possibilities for dynamic signal routing and on-demand enhancement in nanoscale photonic systems. © 2025, CC BY.

关键词： Nonlinear optics

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Low-concentration imiquimod treatment promotes enhanced skin barrier functions through epidermal melanization reaction regulation

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Environmental Toxicology 2024年第9期39卷 4360-4371页

作者： Lin, Tzu-Kai Tsai, Chia-Lun Tsai, Bruce Chi-Kang Kuo, Chia-Hua Ho, Tsung-Jung Hsieh, dennis Jine-Yuan Kuo, Wei-Wen Huang, Chih-Yang Department of Dermatology Hualien Tzu Chi Hospital Buddhist Tzu Chi Medical Foundation Hualien Taiwan School of Medicine Tzu Chi University Hualien Taiwan Cardiovascular and Mitochondrial Related Disease Research Center Hualien Tzu Chi Hospital Buddhist Tzu Chi Medical Foundation Hualien Taiwan Institute of Sports Sciences University of Taipei Taipei Taiwan Laboratory of Exercise Biochemistry Institute of Sports Sciences University of Taipei Tianmu Campus Taipei Taiwan Department of Kinesiology and Health Science College of William and Mary WilliamsburgVA United States Department of Chinese Medicine Hualien Tzu Chi Hospital Buddhist Tzu Chi Medical Foundation Hualien Taiwan Integration Center of Traditional Chinese and Modern Medicine Hualien Tzu Chi Hospital Buddhist Tzu Chi Medical Foundation Hualien Taiwan School of Post-Baccalaureate Chinese Medicine College of Medicine Tzu Chi University Hualien Taiwan School of Medical Laboratory and Biotechnology Chung Shan Medical University Taichung Taiwan Clinical Laboratory Chung Shan Medical University Hospital Taichung Taiwan Department of Biological Science and Technology College of Life Sciences China Medical University Taichung Taiwan Ph.D. Program for Biotechnology Industry China Medical University Taichung Taiwan School of Pharmacy China Medical University Taichung Taiwan Graduate Institute of Biomedical Sciences China Medical University Taichung Taiwan Department of Medical Research China Medical University Hospital China Medical University Taichung Taiwan Department of Medical Laboratory Science and Biotechnology Asia University Taichung Taiwan Center of General Education Buddhist Tzu Chi Medical Foundation Tzu Chi University of Science and Technology Hualien Taiwan

The primary function of the skin is to form a mechanical, permeability, antimicrobial, and ultraviolet radiation barrier, which is essential for maintaining physiological homeostasis. Our previous studies demonstrated that cutaneous pigmentation could promote skin barrier function in addition to providing anti-ultraviolet irradiation defense. The present study aimed to develop a new regimen that enhances skin barrier function by regulating skin pigmentation using low-concentration imiquimod. Results showed that topical application of low-concentration imiquimod effectively induced skin hyperpigmentation in the dorsal skin and external ear of mice without inducing inflammatory cell infiltration. An in vitro study also revealed that low-concentration imiquimod did not induce any cytotoxic effects on melanoma cells but triggered excessive melanin synthesis. In coculture systems, low-concentration imiquimod was noted to increase tyrosinase activity in a broader cellular context, revealing the potential role of neighboring cells in melanin production. The next-generation sequencing result indicated that PKCη and dnm3 might regulate melanin synthesis and release during imiquimod treatment. Overall, our study presents new insights into the regulation of melanin production by low-concentration imiquimod, both in a mice model and cultured cells. Furthermore, our study highlights the potential benefits of imiquimod in promoting melanin synthesis without causing skin disruptions or inducing inflammation, validating its potential to serve as a method for enhancing skin barrier functions by regulating the epidermal melanization reaction. © 2024 Wiley Periodicals LLC.

关键词： Irradiation

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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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Emulating Neuromorphic and In-Memory Computing Utilizing defect Engineering in 2d-Layered WSeOx and WSe2 Thin Films by Plasma-Assisted Selenization Process

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Advanced Functional Materials 2023年第38期33卷

作者： Chaudhary, Mayur Yang, Tzu-Yi Chen, Chieh-Ting Lai, Po-Chien Hsu, Yu-Chieh Peng, Yu-Ren Kumar, Ashish Lee, Chih-Hao Chueh, Yu-Lun Department of Materials Science and Engineering National Tsing-Hua University Hsinchu30013 Taiwan International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu30013 Taiwan College of Semiconductor Research National Tsing-Hua University Hsinchu30013 Taiwan Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu30013 Taiwan Department of Physics National Sun Yat-Sen University Kaohsiung80424 Taiwan Department of Engineering and System Science National Tsing Hua University Hsinchu30013 Taiwan

The neuromorphic and in-memory computing using memristors are promising for the building of the next generation computing systems. However, the diffusion dynamics of metal ions/atoms inside the switching medium impose variability in conducting filament (CF) formation, thus limiting their use in von-Neumann architecture. The precise modulation on the diffusion of metal ions/atoms and their reduction/oxidation probability holds promise to overcome the speed, size, and energy issues of present-day computers. Here, this study shows that the diffusion of metal ions can be modulated by defects inside the switching medium and confines metal filaments in a precise 1d channel. This filament confinement by the defect engineering leads to an anomalous switching mechanism with two interchangeable modes: unipolar threshold and bipolar modes. The variation between two modes can be modulated by controlling defects in the structures, leading to a uniform switching with low SET/RESET voltage variations of 17.3% and −17.6%, respectively. Moreover, the convolutional neural network is implemented to emulate synaptic plasticity and image recognition to achieve recognition accuracy of 87% due to a highly linear weight update, demonstrating its potential for in-memory computing. © 2023 Wiley-VCH GmbH.

关键词： Image recognition

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