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Yu-Chun Chuang,Limin Bao,Ching-Wen Lou,Jia-Horng Lin 한국섬유공학회 2019 Fibers and polymers Vol.20 No.2
Protective textiles require massive consumption of fibers and fabrics, which is responsible for diverse highstrength fabric waste. Wrongly arranged disposal of textile waste is equivalent to the waste valuable resource while causing environmental pollutions. Aramid selvages are worthwhile recycling and used in this study. They are scattered into Aramidstaple fibers and mixed with low melting point polyester (LMPET) fibers to form the Aramid matrices employing the nonwoven process. The matrices are added to different combinations to form Aramid composite matrices and hybrid-fiberreinforced composite boards. The process of shearing, crowding, and friction helps improve the mechanical properties of the composite boards according to the evaluations of conducted tests. With the premise of minimum damage to the fibers, this study uses recycled Aramid waste to produce composite boards that have features of high performance and low productioncost. As a test result, the hybrid-fiber-reinforced composite boards with 90 wt% of recycled Aramid fibers have the optimal mechanical property and static puncture resistance.
Tsai Yu-Chen,Cheng Tai-Shan,Liao Hsiu-Jung,Chuang Ming-Hsi,Chen Hui-Ting,Chen Chun-Hung,Zhang Kai-Ling,Chang Chih-Hung,Lin Po-Cheng,Huang Chi-Ying F. 한국조직공학과 재생의학회 2022 조직공학과 재생의학 Vol.19 No.6
BACKGROUND: Extracellular vesicles (EVs) are derived from internal cellular compartments, and have potential as a diagnostic and therapeutic tool in degenerative disease associated with aging. Mesenchymal stem cells (MSCs) have become a promising tool for functional EVs production. This study investigated the efficacy of EVs and its effect on differentiation capacity. METHODS: The characteristics of MSCs were evaluated by flow cytometry and stem cell differentiation analysis, and a production mode of functional EVs was scaled from MSCs. The concentration and size of EVs were quantitated by Nanoparticle Tracking Analysis (NTA). Western blot analysis was used to assess the protein expression of exosomespecific markers. The effects of MSC-derived EVs were assessed by chondrogenic and adipogenic differentiation analyses and histological observation. RESULTS: The range of the particle size of adipose-derived stem cells (ADSCs)- and Wharton’s jelly -MSCs-derived EVs were from 130 to 150 nm as measured by NTA, which showed positive expression of exosomal markers. The chondrogenic induction ability was weakened in the absence of EVs in vitro. Interestingly, after EV administration, type II collagen, a major component in the cartilage extracellular matrix, was upregulated compared to the EV-free condition. Moreover, EVs decreased the lipid accumulation rate during adipogenic induction. CONCLUSION: The results indicated that the production model could facilitate production of effective EVs and further demonstrated the role of MSC-derived EVs in cell differentiation. MSC-derived EVs could be successfully used in cell-free therapy to guide chondrogenic differentiation of ADSC for future clinical applications in cartilage regeneration.
Wei-Tsung Chuang,Rong-Hao Guo,Che-Min Chou,Chun-Chieh Wang,Ming-Jay Deng,Jhih-Min Lin,Chun-Yu Chen,Yao-Chang Lee 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2
To meet future demands for cutting-edge wearable electronics, flexible supercapacitors must possess many features, such as eco-friendly processing, aesthetic appeal and no health hazards, in addition to have lightweight, robust and excellent cycling stability. We proposed a biomimetic and scalable method to fabricate an all-solid-state flexible supercapacitor (assFSC) using bioinspired clay/polymer nanocomposites as electrode materials and a gel electrolyte. Experimental results from X-ray techniques (tomography, scattering and diffraction) showed that the electrode’s structure features a 3D ant-nest-like framework composed of 2D nacre-like clay nanosheets, i.e. hierarchical layers-within-networks structure. Accordingly, the structural electrodes exhibit high tensile strength of 62 MPa, Young’s modulus of 4.4 GPa, and torsional strength of 165 MPa. Under a large operating potential of 4.0 V, the assFSC exhibited ultrahigh energy density (233.3 W h kg<SUP>-1</SUP> at 2 kW kg<SUP>-1</SUP>), ultrahigh power density (125 kW kg<SUP>-1</SUP> at 55.5 W h kg<SUP>-1</SUP>), and outstanding static cyclability (less than 10% loss after 5,000 cycles). We also performed a cycle-life test under dynamic deformation and demonstrated that the assFSC had charging and discharging abilities during motion, according to particle applications of wearable electronics. Thus stable and superior electrochemical performance can be attributed to the biomimetic layers-within-networks structure, which not only provided robust framework but also induced 3D conducting networks with increasing ion channels and shortening charge transports. The shapeable electrodes made by a molding process could, therefore, be used to meet the demands for fashionable, wearable electronics.
Biomarkers in pursuit of precision medicine for acute kidney injury: hard to get rid of customs
( Kun-mo Lin ),( Ching-chun Su ),( Jui-yi Chen ),( Szu-yu Pan ),( Min-hsiang Chuang ),( Cheng-jui Lin ),( Chih-jen Wu ),( Heng-chih Pan ),( Vin-cent Wu ) 대한신장학회 2024 Kidney Research and Clinical Practice Vol.43 No.4
Traditional acute kidney injury (AKI) classifications, which are centered around semi-anatomical lines, can no longer capture the complexity of AKI. By employing strategies to identify predictive and prognostic enrichment targets, experts could gain a deeper comprehension of AKI’s pathophysiology, allowing for the development of treatment-specific targets and enhancing individualized care. Subphenotyping, which is enriched with AKI biomarkers, holds insights into distinct risk profiles and tailored treatment strategies that redefine AKI and contribute to improved clinical management. The utilization of biomarkers such as N-acetyl-β-D-glucosaminidase, tissue inhibitor of metalloprotease-2·insulin-like growth factor-binding protein 7, kidney injury molecule-1, and liver fatty acid-binding protein garnered significant attention as a means to predict subclinical AKI. Novel biomarkers offer promise in predicting persistent AKI, with urinary motif chemokine ligand 14 displaying significant sensitivity and specificity. Furthermore, they serve as predictive markers for weaning patients from acute dialysis and offer valuable insights into distinct AKI subgroups. The proposed management of AKI, which is encapsulated in a structured flowchart, bridges the gap between research and clinical practice. It streamlines the utilization of biomarkers and subphenotyping, promising a future in which AKI is swiftly identified and managed with unprecedented precision. Incorporating kidney biomarkers into strategies for early AKI detection and the initiation of AKI care bundles has proven to be more effective than using care bundles without these novel biomarkers. This comprehensive approach represents a significant stride toward precision medicine, enabling the identification of high-risk subphenotypes in patients with AKI.
Ting An Lin,Yu-Chun Chuang,Jan-Yi Lin,Mei-Chen Lin,Ching-Wen Lou,Keng Siang Sim,Jia-Horng Lin 한국섬유공학회 2020 Fibers and polymers Vol.21 No.10
People have increasingly rising health consciousness in recent years and researchers are thus devoted themselvesto develop multi-functional textile products. In this study, stainless steel (SS) filaments are used for electromagnetic shieldingeffectiveness (EMSE) while polypropylene (PP) filaments are used for ultraviolet resistance and good mechanical properties. Spinning and weaving continuous formation techniques are employed to produce wrapped yarns with SS and PP filaments,after which a weaving process is employed for the preparation of SS/PP woven fabrics. The woven fabrics are tested forEMSE and UV resistance, examining the effect of the lamination-layer numbers and lamination-layer angles. Test resultsshow that the optimal EMSE and UV resistance occur when SS/PP woven fabrics are laminated with two layers at 90 °. Notonly focus on the mechanical performance, the proposed woven fabrics with good EMSE, UV resistance, and a light weight,and are good candidate for a variety of application as required. The proposed UV resistance and EMSE woven fabricssignificantly increase the additional values of traditional textiles.
Jia-Ci Jhang,Ting Ru Lin,Yu-Chun Chuang,Ching-Wen Lou,Jia-Horng Lin 한국섬유공학회 2020 Fibers and polymers Vol.21 No.3
It is trendy to use polymers with different forms in a diversity of fields. This study uses nylon fibers and lowmelting-point polyester (LMPET) fibers or low melting point polylactic acid (LMPLA) fibers to fabricate three-dimensionalnylon/LMPET and nylon/LMPLA cushioning composite fabrics employing the nonwoven manufacturing. The employmentof needle punching process and thermal treatment reinforce the cushioning composite fabrics, and the subsequent thermalbonding points strengthen the mechanical properties effectively. In comparison to pure nylon nonwoven fabrics, the nyloncushioning composite fabrics exhibit higher tensile strength by 2.3 times regardless of whether it is a nylon/LMPET or nylon/LMPLA cushioning composite fabric. Similarly, based on the hammer rebound rate measurement, when the 3D cushioningcomposite fabrics are composed of 20 wt% of LMPLA fibers or 80 wt% of LMPET fibers, the hammer rebound rate reaches20 %, which is 1.4 times greater than that of the control group. Additionally, the composite fabrics that are composed of80 wt% of LMPLA fibers or 40 wt% of LMPET fibers also demonstrate higher compression recovery than the control group.
Lu-Yen Chen,Jo-Ming Tseng,Chung-Hwei Su,Kuen-Yuan Chuang,Chun-Ping Lin,Shuh-Woei Yu 한국화학공학회 2012 Korean Journal of Chemical Engineering Vol.29 No.10
Tert-butyl(2-ethylhexyl)monoperoxy carbonate (TBEHC) 95 mass% is intrinsically a very unstable substance that can induce self-decomposition even under normal atmospheric condition. During storage, TBEHC 95mass%can release an enormous amount of heat if the temperature is higher than the recommended storage temperature, due to the self-accelerating reaction having been ignited. In this study, TBEHC 95mass% was tested by differential scanning calorimetry (DSC) under five heating rates (1, 2, 4, 6, and 8 oC/min) and four isothermal conditions (120, 125, 130,and 135 oC) to evaluate the basic kinetic and safety parameters of time to maximum rate (TMR), self-accelerating decomposition temperature (SADT), and temperature of no return (TNR). Under runaway reaction TBEHC 95 mass%releases a great quantity of heat. This study establishes an important guiding principle for related manufacturing processes worldwide.