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Cytocompatible and antibacterial Fe-, Cu- and Zn-substituted calcium hydroxyapatite materials for skin applications

Ceramics international 2025年第9期51卷 11286-11296页

作者： Lukaviciute, L. Lukowiak, A. Stankeviciute, Z. Junka, A. Mortimer, M. Zarkov, A. Yang, J.-C. Ganceviciene, R. Kareiva, A. Faculty of Chemistry and Geosciences Vilnius University Naugarduko st. 24 Vilnius03225 Lithuania Institute of Low Temperature and Structure Research Polish Academy of Sciences Okolna 2 Wroclaw50422 Poland Department of Pharmaceutical Microbiology and Parasitology Wroclaw Medical University Borowska 211A Wroclaw50556 Poland Laboratory of Environmental Toxicology National Institute of Chemical Physics and Biophysics Akadeemia tee 23 Tallinn12618 Estonia Graduate Institute of Nanomedicine and Medical Engineering International Ph.D. Program in Biomedical Engineering College of Biomedical Engineering Research Center of Biomedical Device Research Center of Digital Oral Science and Technology Taipei Medical University Taiwan Faculty of Medicine Vilnius University M.K. Ciurlionio st. 21 Vilnius03101 Lithuania

Calcium hydroxyapatite (C10(PO4)6(OH)2;CHAp) and metal-substituted samples (Fe:CHAp, Cu:CHAp, and Zn:CHAp) were synthesized using a recently developed method. This method involved the wet precipitation of amorphous calcium phosphate (ACP), followed by solid-state reaction synthesis of α-tricalcium phosphate (α-TCP), and finally hydrothermal synthesis of CHAp. The effect of Fe3+, Cu2+, and Zn2+ substitution on the phase purity and antimicrobial properties of CHAp are summarized in this study. Notably, it highlights the phase purity of CHAp and Zn:CHAp (in the presence of Fe3+ and Cu2+ ions, the α- and β-TCP phases have formed) as well as the antimicrobial activity of Zn:CHAp and Cu:CHAp against Staphylococcus aureus and Candida albicans. The synthesized nanosized CHAp, Fe:CHAp, Cu:CHAp, and Zn:CHAp samples were used as additives in the preparation of skin creams. In vitro biological studies of the resulting skin creams demonstrated their antimicrobial activity against Pseudomonas aeruginosa, and showed a reduction in osteoblasts cells viability of in the range of 20–40 %. The addition of zinc enhances antimicrobial efficacy but reduces biocompatibility, while copper maintains both high antimicrobial activity and biocompatibility, making it more suitable for the development of medical or cosmetic materials. dermal creams containing CHAp with copper and iron ions also show significant antimicrobial activity while preserving good cell viability. These results highlight the importance of optimizing the balance between antimicrobial effectiveness and biocompatibility in these materials. © 2024

关键词： Biocompatibility

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Machine-learning-based sampling inspection under OQC capacity for real-time quality monitoring in the TFT-LCd industry

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international Journal of Production Research 2025年第6期63卷 2090-2113页

作者： Shih, Ming-Sung Chen, James C. Chen, Tzu-Li Chiang, Chih-Hsiung Hsu, Ching-Lan International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu Taiwan Department of Industrial Engineering and Engineering Management National Tsing Hua University Hsinchu Taiwan Graduate Institute of Intelligent Manufacturing Technology National Taiwan University of Science and Technology Taipei Taiwan Division of Quality Control AUO Corporation Taichung Taiwan

In the thin film transistor-liquid crystal display (TFT-LCd) industry, the competition is fierce, and the external failure cost is high. To improve the quality of released products, sampling inspection under outgoing quality control (OQC) is conducted before products are released. Owing to the variety and complexity of inspection items, the task must be carried out manually while realising automation is difficult. Traditional random sampling inspection is limited by sampling quantity, manpower, and material resources. To effectively improve acceptable quality levels, this paper proposes a quality predictive monitoring framework tailored to the production and inspection characteristics of the TFT-LCd industry. This framework includes real-time automatic quality monitoring based on an optimal machine learning prediction model with two-phase feature creation, and it also addresses OQC inspection capacity constraints. Experimental results show the prediction performance based on proposed model is better than the traditional random sampling process. In practice, superior average outgoing quality improves by more than 70% at the same sampling level. In addition, the features of the process can be further controlled and managed based on the prediction model to monitor the key parameters in real time and respond to abnormalities quickly, thereby further improving the quality of released products. © 2024 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Liquid crystal displays

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Pulmonary entrapping predicts occult diaphragmatic injury in blunt thoracic trauma with rib fractures

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Asian Journal of Surgery 2025年第5期48卷 2859-2865页

作者： Chang, Po-Chih Chen, Chao-Wen Liu, Yu-Wei Chou, Shah-Hwa Chang, Ting-Wei Li, Hsien-Pin Chiang, Hung-Hsing School of Medicine College of Medicine National Sun Yat-sen University Kaohsiung City Taiwan 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 Sports Medicine College of Medicine Kaohsiung Medical University Kaohsiung City Taiwan Ph. D. Program in Biomedical Engineering College of Medicine Kaohsiung Medical University Kaohsiung City Taiwan Faculty of Medicine College of Medicine Kaohsiung Medical University Kaohsiung City Taiwan Division of Trauma and Surgical Critical Care Department of Surgery Kaohsiung Medical University Hospital/Kaohsiung Medical University Kaohsiung City Taiwan Division of Thoracic Surgery Department of Surgery Kaohsiung Medical University Ganshan Hospital/Kaohsiung Medical University Kaohsiung City Taiwan Ph.D. Program in Environmental and Occupational Medicine College of Medicine Kaohsiung Medical University Kaohsiung City Taiwan

Background: Blunt thoracic trauma (BTT) often leads to rib fractures (RFs), with an increasing trend in surgical stabilization of rib fractures (SSRF) combined with thoracoscopic exploration, revealing previously underestimated occult diaphragmatic injuries (OdIs) that can result in hernias if not promptly addressed. We present our experience managing OdIs following BTT with complex RFs in a tertiary hospital in Southern Taiwan. Methods: We conducted a retrospective study including patients undergoing SSRF for BTT with complex RFs from January 2018 to March 2024. We analyzed demographic data, trauma details, clinical presentations, intraoperative findings, radiological features, and attempted to identify predictive factors for OdIs using logistic regression analysis. We also reviewed previous case series on OdIs. Results: We identified 11 OdIs, primarily detected during thoracoscopic exploration performed concurrently with SSRF (n = 8) or excessive bloody pleural effusion (n = 3). One hundred and twenty-two patients underwent SSRFs for their complex RFs simultaneously. All these patients with incidental OdI findings during SSRF for complex RFs underwent successful diaphragm repair via thoracoscopy. Multivariate logistic regression analysis revealed a significant association between trapped lung and OdI occurrence in patients undergoing SSRF after BTT (odds ratio: 24.423;95 % confidence interval: 2.77–215.369;p = 0.004). Conclusions: Our findings emphasize the importance of considering pulmonary entrapment as a significant predictive factor for OdI after BTT with complex RFs. Routine thoracoscopy during SSRF is crucial for early detection and management of this rare condition. © 2025 Asian Surgical Association and Taiwan Society of Coloproctology

关键词： Blunt injury diaphragm Fracture fixation Pulmonary entrapping Rib fractures Thoracoscopy

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Microwave dielectric and structural characteristics in Li2O-B2O3-SiO2 glass ceramics

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Ceramics international 2025年

作者： Qiu, Jun-Yan Tu, Chi-Shun Huang, Szu-Ting Li, Yongxiang Chen, Pin-Yi Chen, Cheng-Sao Montecillo, Rhys Feng, Kuei-Chih International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City Taiwan Department of Physics Fu Jen Catholic University New Taipei City Taiwan Department of Mechanical Engineering Ming Chi University of Technology New Taipei City Taiwan School of Engineering RMIT University MelbourneVIC3000 Australia Research Center for Intelligent Medical Devices Ming Chi University of Technology New Taipei City Taiwan Department of Mechanical Engineering Hwa Hsia University of Technology New Taipei City Taiwan

Advancements in high-frequency communication devices have emphasized miniaturization and low energy consumption. This work focuses on developing microwave dielectric materials characterized by an ultra-low dielectric constant and low dielectric loss coefficient. In this study, B2O3 and Li2O were added into the SiO2 matrix to form the LBS glass-ceramics. The B2O3-added SiO2 shows a formation of α-cristobalite phase, and the Li2O additive in the B2O3-SiO2 glass-ceramics sintered at 900 °C reveal a primary quartz phase with a secondary phase Li2Si2O5, that partially transformed into Li2SiO3 in the specimen sintered at 950 °C. The LBS12 (x = 12 wt%) show stronger Raman peaks of Li2Si2O5 and Li2SiO3, indicating increase of highly-crystallized Si-O network. As the quartz phase diminishes, Li2Si2O5 and Li2SiO3 begin to develop in the glass-ceramic matrix. dense microstructures and well-formed crystalline grains were observed in the LBS glass-ceramics. The quality factors were primarily affected by grain size and density. The Li2Si2O5 additive in the LBS glass-ceramics can reduce dielectric permittivity (Εr) and increase Q × f, particularly at higher frequencies. A low Εr of 4.7–5, a high Q × f of 2600 GHz, and a hardness of 249 MHV were achieved in the LBS12 sintered at 900 °C. These LBS glass-ceramics exhibit potential for use in low-temperature co-fired ceramic (LTCC) applications in high-frequency communication devices. © 2025

关键词： Sintering

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Short-Chain dense Brush Pegylation on Rigid Nanocarriers Overcomes Anti-Peg Antibody Recognition for Immune-Stealth drug delivery

SSRN

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SSRN 2025年

作者： Chen, Ting-Yu Chang, Chi-Yuan Wen, Ting-Chun Xu, Li Lin, Yu-Han Peng, Cheng-Liang Yeh, Yi-Qi Chen, Chueh-Hsuan Chuang, Kuo-Hsiang Wu, Si-Han Graduate Institute of Pharmacognosy Taipei Medical University Taipei11031 Taiwan Graduate Institute of Nanomedicine and Medical Engineering Taipei Medical University Taipei11031 Taiwan Department of Isotope Application National Atomic Research Institute Taoyuan Taiwan National Synchrotron Radiation Research Center Hsinchu Science Park Hsinchu30076 Taiwan Research Center for Applied Science Academia Sinica Taiwan PhD Program in Clinical Drug Development of Chinese Herbal Medicine Taipei Medical University Taipei Taiwan International Ph.D. Program in Biomedical Engineering College of Biomedical Engineering Taipei Medical University Taipei11031 Taiwan

The immunogenicity of polyethylene glycol (PEG) remains a critical challenge in nanomedicine, as pre-existing anti-PEG antibodies can compromise therapeutic efficacy through accelerated blood clearance (ABC) and life-threatening hypersensitivity. Here, we address this challenge by engineering the PEG architecture, creating short-chain dense brush PEGylation (PEG500) on rigid mesoporous silica nanoparticles (MSNs). Unlike conventional PEG2000-liposomes, MSN-PEG500 evades antibodies via three synergistic mechanisms: (1) short-chain PEG500 reduces epitope accessibility, (2) high grafting density (4.43 chains/nm2, according to TGA) forms an dense steric shield, and (3) the rigid silica surface prevents PEG burial. ELISA studies demonstrated that, at equivalent nanoparticle concentrations, MSN-PEG500 exhibits a 26-fold reduction in anti-PEG IgG (6.3) binding and a 1000-fold reduction in anti-PEG IgM (AGP3) binding compared to Lipodox (PEG2000), both of which target the PEG backbone. Furthermore, radiolabeled MSN-PEG500 achieved prolonged circulation and 25% tumor accumulation (Id/g) at 24 hours. In strongly immunized mice, doxorubicin-loaded MSN-PEG500 preserved therapeutic efficacy and 100% survival, whereas Lipodox induced fatal hypersensitivity. Mechanistic investigations revealed that complement activation drives PEG2000 immunotoxicity, and pretreatment with the C3 inhibitor compstatin effectively mitigated temperature drops from 10°C to 2°C in immunized hosts. By demonstrating that nanoscale control of polymer conformation dictates immunological fate, this work provides a clinically translatable blueprint for developing immune-evasive nanomedicines. © 2025, The Authors. All rights reserved.

关键词： Silica nanoparticles

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Optical sensor for dissolved ammonia by embedding eosin Y in cellulose acetate and silicone rubber via the phase inversion method

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Microchemical Journal 2025年 213卷

作者： Putro, dimas Trio Sari, desy Purnama Chu, Cheng-Shane International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology Taishan Dist. New Taipei City 24301 Taiwan Department of Mechanical Engineering Ming Chi University of Technology Taishan Dist. New Taipei City 24301 Taiwan Research Center for Intelligent Medical Devices Ming Chi University of Technology Taishan Dist. New Taipei City 24301 Taiwan

This study presents the phase inversion method for fabricating a new optical sensing membrane designed for dissolved ammonia detection. Eosin Y was embedded into composite materials of cellulose acetate (CA) and silicone rubber to enhance optical performance and modify the membrane structure. Sensing performance was evaluated using luminescence quenching, which involved measuring changes in both intensity and wavelength. The fabricated membrane exhibited a microporous structure with pore diameters ranging from 1 to 10 µm, a quenching response (I₀/I₄₀₀) of 15.15, a response time (↓t₉₀) of 53 s, and effective detection at a concentration of 400 mM, a room temperature (20–25 °C), and ph 6.02, with sensing response slightly decreasing at elevated temperatures (up to 50 °C) and at ph 3.17 and 9.29. The nonlinear quenching response plot was converted into a linear form using the decibel (dB) formula, significantly improving linearity (R² = 0.9862). The membrane also exhibited excellent selectivity and the ability to detect in both gas and dissolved phases. Additionally, the sensing mechanism was investigated, revealing a combination of static and dynamic quenching, which led to an intensity decrease and a bathochromic shift of 16.56 nm. These findings highlight the potential of the developed optical sensor for rapid and highly selective ammonia monitoring in various environments. © 2025 Elsevier B.V.

关键词： Bathochromic shift dissolved ammonia detection Eosin Y Optical sensing membrane phase inversion method

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Achieving high surface bioactivity and adhesion in Ti-6Al-4V alloy via anodic oxidation and electrophoretic deposition

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Ceramics international 2025年

作者： Wu, Yu-Jie Wang, Chi-Yun Mana-ay, Haidee Tu, Chi-Shun Lai, Po-Liang Chen, Pin-Yi International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City24301 Taiwan Research Center for Intelligent Medical Devices Ming Chi University of Technology New Taipei City24301 Taiwan Department of Physics Fu Jen Catholic University New Taipei City24205 Taiwan Bone and Joint Research Center Department of Orthopedic Surgery Chang Gung Memorial Hospital Taoyuan City33305 Taiwan Department of Mechanical Engineering Chang Gung University Taoyuan City33302 Taiwan Department of Physics Silliman University Dumaguete City6200 Philippines

This study combines 3d printing, anodic oxidation (AO), and electrophoretic deposition (Ed) technologies to develop Ti-6Al-4V alloy (abbreviated as Ti64) with high hydrophilicity, adhesion, and bioactivity. Titanium oxide nanotubes formed by AO treatment on the Ti64 surface exhibited reduced contact angles from 53 ° to 10 °. The adhesion of the calcium (Ca) layer through the integrated technology of the AO and Ed treatments (herein abbreviated as AEd) displays an optimal adhesive force of over 30 N on the Ti64 surface, which is attributed to the stable chemical bond due to the formation of OH− ions on the substrate after the AO treatment and the subsequent oxidation reaction of the Ca2+ ions to form a predominantly Ca(OH)2 layer after the Ed treatment. Moreover, the AEd treatment forms tiny needle-like structures that can effectively promote osteogenic differentiation. The expressions of the osteocyte marker genes (i.e., OCN, OPN, and dMP1) were improved after the AEd treatment, showing increased osteogenic differentiation into mature bone tissue. This work presents the AEd treatment as a valuable surface modification technique to boost the surface bioactivity of Ti64 for clinical orthopedic applications. © 2025

关键词： Anodic oxidation

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development of BACE2-IN-1/tranylcypromine-based compounds to induce steroidogenesis-dependent neuroprotection

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Biomedicine and pharmacotherapy 2025年 183卷 117851-117851页

作者： Banerjee, Suddhasatwa Hsu, Ying-Ting Nguyen, duc-Hieu Yeh, Shiu-Hwa Liou, Ke-Chi Liu, Jr-Jiun Liou, Jing-Ping Chuang, Jian-Ying School of Pharmacy Taipei Medical University Taipei 11031 Taiwan Ph.D. Program in Medical Neuroscience Taipei Medical University and National Health Research Institutes Taipei 11031 Taiwan Institute of Biotechnology and Pharmaceutical Research National Health Research Institutes Miaoli County 35053 Taiwan TMU Research Center for Drug Discovery Taipei Medical University Taipei 11031 Taiwan Ph.D. Program in Drug Discovery and Development Industry College of Pharmacy Taipei Medical University Taipei 110 Taiwan International Master Program in Medical Neuroscience Taipei Medical University New Taipei City 23564 Taiwan TMU Research Center of Neuroscience Taipei Medical University Taipei 11031 Taiwan Department of Biomedical Science and Environmental Biology Kaohsiung Medical University Kaohsiung 80780 Taiwan

Traumatic brain injury (TBI) constitutes a significant burden on global healthcare systems, especially affecting younger populations, where it is a leading cause of disability and mortality. Current treatments for TBI mainly focus on preventing further brain damage and controlling symptoms. However, despite these approaches, several clinical needs remain unmet. Revelations from single-cell RNA sequencing (scRNA-seq) performed to determine cell-type heterogeneity and gene expression changes in brain tissue indicated that brain trauma increases the expression of lysine-specific demethylase 1 (LSd1) and secretase 2 (BACE2). To capitalize on this finding, a medicinal chemistry campaign was conducted to pragmatically insert tranylcypromine, an LSd1 inhibitor, into a carefully designed BACE2 inhibitory template (BACE2-IN-1). Additionally, tranylcypromine was structurally modified to enhance the effects of LSd1 inhibition in TBI. As a result, a tractable neuroprotective agent, BACE2-IN-1/tranylcypromine-based compound 4, was identified, showing potential to maintain Neuro-2a cell survival by alleviating mitochondrial damage after oxidative stress. Compound 4 also restored TBI-mediated inhibition of the cholesterol biosynthetic pathway (mevalonate pathway) and damage of redox metabolism, increasing neuroprotective effects. Furthermore, behavioral assays, including nest-building and cognitive performance tests, demonstrated significant improvement in mice post-TBI following treatment with compound 4. Taken together, the outcomes of this study validate the favorable effects of inhibiting LSd1 and beta-secretase in mitigating mitochondrial stress and promoting neurometabolic recovery in TBI. These findings pave the way for the development of rationally designed inhibitors as promising neuroprotective agents, potentially addressing unmet clinical needs in TBI treatment. © 2025 The Authors

关键词： Beta-secretase LSd1 Oxidative stress Sterol biosynthesis Tranylcypromine Traumatic brain injury

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doping ratio between ZnO/MgO tunes antimicrobial, osteogenic, and anti-osteoclast activity of CaO-MgO-ZnO-SiO2 bioactive glass-ceramics

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Ceramics international 2025年

作者： Hung, Guan-Yi Xia, Yun-Ze Chen, Pin-Yi Lai, Po-Liang Feng, Kuei-Chih Tu, Chi-Shun Cheng, I.-C. Wang, Chi-Yun International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City24301 Taiwan Department of Physics Fu Jen Catholic University New Taipei City24205 Taiwan Department of Mechanical Engineering Ming-Chi University of Technology New Taipei City24301 Taiwan Bone and Joint Research Center Department of Orthopaedic Surgery Chang Gung Memorial Hospital Taoyuan City33305 Taiwan College of Medicine Chang Gung University Taoyuan City33305 Taiwan Department of Mechanical Engineering Chang Gung University Taoyuan City33305 Taiwan Research Center for Intelligent Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan

Limitations such as donor site morbidity hamper autologous bone grafts. On the other hand, allogeneic grafts, sourced from cadavers, pose risks of viral transmission and rejection. While hydroxyapatite is a prevalent synthetic graft material, antibiotic-laden fillers addressing infection face challenges with antibiotic-resistant pathogens, driving the emergence of nonantibiotic materials to combat persistent bone infections. Bioactive glass is a potential bone void filler superior to hydroxyapatite. Thus, to improve the antibacterial efficacy and bioactivity, we adjusted the doping ratio of the novel CaO-(1-x) MgO-(x) ZnO-SiO2 glass-ceramics (x = 0, 0.25, 0.50, 0.75, 1). Using XRd, we found a typical amorphous structure alongside polycrystalline diopside (CaMgSi2O6), hardystonite (Ca2ZnSi2O7), and petedunnite (CaZnSi2O6) formations. Raman spectroscopy revealed the silicate-glass matrix structure in all the Zn(100x) glass-ceramics and confirmed that the Zn ions replaced the Mg ions. Zn-doped glass-ceramics promoted apatite layer formation and had greater antibacterial efficacy against E. coli and S. aureus. Zn25 glass-ceramic were biocompatible with L929 and MC3T3-E1 cells. Furthermore, Zn25 glass-ceramic promoted bone cell mineralization and reduced osteoclast formation without affecting ALP activity. In vivo, the Zn25 glass-ceramic exhibited greater osteointegration ability than the HAP and Zn0 glass-ceramic. Taken together, the present study demonstrated that bioactive glass-ceramics with a doping ratio between ZnO and MgO (25:75) can enhance antibacterial and osteogenic activity while impeding osteoclastogenic activity. © 2025

关键词： Escherichia coli

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Self-Healable Sandfish Scale-Inspired Scalable Triboelectric Layer for Hybrid Energy Harvesting in desert Environment (Small 4/2025)

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Small 2025年第4期21卷

作者： An-Rong Chen Parag Parashar Manish Kumar Sharma Jing-Siang Shih Hsuan-Yu Yeh Yen-Jui Lin Kuldeep Kaswan Kai-Po Fan Po-Yu Chen Zong-Hong Lin Department of Materials Science and Engineering National Tsing Hua University Hsinchu 30013 Taiwan Department of Biomedical Engineering National Taiwan University Taipei 10617 Taiwan Institute of Biomedical Engineering National Tsing Hua University Hsinchu 30013 Taiwan International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu 30013 Taiwan

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