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Livelihood vulnerability to climate change health impacts among Amhara Sayint district community, northeastern Ethiopia: A composite index approach

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Heliyon 2024年第18期10卷 e38166页

作者： Kassaw, Genanew Mulugeta Malede, Asmamaw Gebrehiwot, Mesfin Department of Public Health College of Health Sciences Woldia University Woldia Ethiopia International Ph.D program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei Taiwan Department of Environmental Health and occupational health & safety College of Medicine and Health Sciences University of Gonder Gonder Ethiopia Department of Environmental Health College of Medicine and Health Sciences Wollo University Dessie Ethiopia

Climate change significantly impacts public health, affecting nearly everyone across the globe and contributing to approximately 10% of global mortality. Ethiopia is particularly vulnerable to the changing climate attributed impacts due to economic, and social determinants. While research on climate change is expanding, it often prioritizes its effects on agriculture. The impacts from public health perspective are frequently overlooked. We address this shortcoming by evaluating the vulnerability of the community in the district of Amhara Sayint, Amhara, northeastern Ethiopia, to the health impacts of climate change, and identifying factors involved. data was collected using a community-based cross-sectional approach, involving 605 randomly selected households between July Twenty and September Five, 2022. The data collection process utilized a validated and pilot-tested questionnaire, which was administered through face-to-face interview with the aid of Kobo Collect toolbox. The community's vulnerability was assessed using the IPCC's framework of vulnerability. Household's Vulnerability status was then classified into three levels according to their Livelihood Vulnerability Index (LVI) score. A partial proportional oddsapproach of ordinal logistic regression model was used to identify factors associated with vulnerability to climate change attributed health impacts. Among the 605 respondents, 48% (95% CI: 44.1, 52.1) were identified as vulnerable, and about 4.6 % (95% CI: 3, 6.6) were classified as highly vulnerable. Wealth status (AOR₁ = 1.8;95 % CI: 1.2, 2.8), educational status (AOR₁ = 2.8;95% CI: 1.1, 7.3), marital status (AOR₂ = 4.7, 95% CI: 1.6, 13.4), and home crowdedness (AOR₂ = 2.9, 95% CI: 1.1, 8.1) significantly associated with vulnerability. Over half of the residents in the district wereeither being vulnerable or highly vulnerable to climate change attributed health impacts. Therefore, prioritizing prevention a

关键词： Climate change Health impacts Partial proportional odds model Vulnerability Index

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A novel strategy towards the fabrication of highly stable and sensitive non-enzymatic glucose sensor based on Ni3N thin films using high power impulse magnetron sputtering

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Applied Surface Science 2024年 669卷

作者： Pardhi, Nishchal Cheng, Wei-Chun Chen, Sheng-Chi Akshay Joshi, Shikha Govindasamy, Mani Department of Mechanical Engineering National Taiwan University of Science and Technology Taipei106 Taiwan Department of Materials Engineering and Center for Plasma and Thin Film Technologies Ming Chi University of Technology New Taipei City243303 Taiwan College of Engineering and Center for Green Technology Chang Gung University Taoyuan333 Taiwan Department of Materials Engineering Indian Institute of Science Bangalore560012 India 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 Research Center for Intelligence Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan

Glucose level surveillance in mankind is considered the greatest need of recent times to achieve healthy lifestyle goals due to its health-related concern for humans. To fulfill the need, Nickel-based compounds emerge with excellent bio-mimic properties. However, due to the poor electrical properties of oxides and hydroxides of Ni, developing a supporting base that can enhance electron transportation is mandatory. The present work is dedicated to non-enzymatic glucose detection by electrochemical means on the Ni3N thin film on an Indium-doped Tin Oxide (ITO) substrate as a working electrode in an alkaline medium. The Ni3N films use HiPIMS as a deposition technique due to its high ionization rate of sputtered species and dense plasma which helps the Ni ions to react with nitrogen in the formation of a perfect Ni3N phase, and it is a green process that can contribute to sustainable manufacturing. Ni3N thin film deposited at a 60 % N2 flow ratio shows the largest crystallinity and catalytic properties, which helps this modified electrode to have significant potential for glucose detection. The Ni3N modified electrode acquires a lower linear range of 0.001–1.25 mM with sensitivity and Limit of detection (LOd) of 337.46 µAmM–1cm−2, and 0.78 µM, respectively, and a higher linear range of 1.25–7.3161 mM with a sensitivity of 158.58 µAmM–1cm−2. The amperometric measurements reveal the fast response of the electrode towards glucose detection at 2.46 secs. The key measures of the electrode according to the corresponding measurements are satisfactory selectivity, reproducibility, repeatability, and operational stability. The modified electrode shows a significant response for real samples such as commercially available honey, apple juice, and biological fluids. © 2024 Elsevier B.V.

关键词： Thin films

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design of sonochemical assisted synthesis of Zr-MOF/g-C3N4-modified electrode for ultrasensitive detection of antipsychotic drug chlorpromazine from biological samples

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Microchimica Acta 2024年第4期191卷 182-182页

作者： Ashkar, M.A. Kutti Rani, S. Vasimalai, N. Kuo, Chih-Yu Yusuf, Kareem Govindasamy, Mani Department of Chemistry B.S. Abdur Rahman Crescent Institute of Science and Technology Vandalur Chennai600 048 India Department of Chemical Engineering & amp Biotechnology National Taipei University of Technology Taipei10608 Taiwan International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan Department of Chemistry College of Science King Saud University Riyadh11451 Saudi Arabia Department of Research and Innovation Saveetha School of Engineering SIMATS Chennai6021055 India Research Center for Intelligence Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan

The rapid fabrication is described of binary electrocatalyst based on a highly porous metal–organic framework with zirconium metal core (Zr-MOF) decorated over the graphitic carbon nitride (g-C3N4) nanosheets via facile ultrasonication method. It is used for the robust determination of antipsychotic drug chlorpromazine (CLP) from environmental samples. The electrochemical behaviour of 2d Zr-MOF@g-C3N4 was characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) studies. The crystalline and porous nature of the composite was characterized by XRd and SEM analysis. The functional groups and surface characteristics were investigated by FT-IR, Raman and XPS. The major electrochemical properties of the Zr-MOF@g-C3N4 composite towards CLP detection were analyzed by CV, chronocoulometric (CC), chronoamperometric (CA) and differential pulse voltammetry (dPV) techniques. The composite exhibits a low detection limit (LOd) of 2.45 nM with a linear range of 0.02 to 2.99 µM and attractive sensitivity for CLP. The sensor system shows higher selectivity towards the possible interferences of CLP drug and exhibits better repeatability and stability. Finally, the fabricated sensor system shows a high recovery range varying from 96.2 to 98.9% towards the real samples. The proposed electrochemical probe might be a promising alternative to the prevailing diagnostic tools for the detection of CLP. Graphical Abstract: (Figure presented.) © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2024.

关键词： Cyclic voltammetry

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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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development of the Al2o3-B2o3-Sio2 Glass For Thermal Barrier Coating

SSRN

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SSRN 2023年

作者： Qiu, Jun-Yan Montecillo, Rhys Chen, Pin-Yi Tu, Chi-Shun Chen, Cheng-Sao Feng, Kuei-Chih International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City24301 Taiwan Department of Mechanical Engineering Ming Chi University of Technology New Taipei City24301 Taiwan Department of Physics Fu Jen Catholic University New Taipei City24205 Taiwan Department of Mechanical Engineering Hwa Hsia University of Technology New Taipei City23530 Taiwan

The glass coating is an important technique in the aerospace industry as a thermal insulation role to protect the inner layer to form a thermal protection system (TPS) at elevated temperature. The results show an increase of the glass transition temperature (from 650 °C to 750 °C) in B2O3-SiO2 systems with increasing SiO2 content and the devitrification of the α-cristobalite phase. The Al2O3 additive in B2O3-SiO2 glass can increase the glass transition temperature from 750 °C to 1000 °C, and also inhibit the α-cristobalite phase. The transformation from the unstable α-cristobalite phase to the amorphous phase occurs at specimen with 10 wt% Al2O3 addition. Microstructure characterization shows the flat morphology without cracks on the surface. This study demonstrates that the Al2O3- B2O3-SiO2 glass has a thermally stable behavior which can be used as an effective thermal barrier coating at elevated temperature. © 2023, The Authors. All rights reserved.

关键词： Silica

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The effect of Zentangle on cognitive focus, emotional well-being, and stress levels: A neural perspective

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Brain and Behavior 2024年第8期14卷 e3628页

作者： Usman, Muhammad Jung, Tzzy-Ping Hsin, ding-Yun Lin, Chun-Ling International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City Taiwan Institute for Neural Computation and Institute of Engineering in Medicine University of California San Diego San Diego CA United States Taipei Municipal Yangming High School Taipei City Taiwan Department of Electrical Engineering Ming Chi University of Technology New Taipei City Taiwan Department of Electronic Engineering National Taipei University of Technology Taipei Taiwan

Purpose: This study aimed to assess how a Zentangle intervention influences cognitive focus, emotional well-being, stress levels, and neural activity patterns across brain regions and frequency bands. Method: A cohort of 30 healthy adults, all without prior Zentangle experience, participated in this study. Electroencephalography (EEG) was used to measure their brain activity, and self-reported data were collected through questionnaires to assess subjects’ concentration levels, emotional calm, and stress and anxiety. Findings: Participants reported enhanced cognitive focus and emotional well-being, evidenced by increased self-reported concentration and emotional calmness, and reduced stress and anxiety levels during the intervention. EEG analyses revealed notable changes in neural activity patterns, including decreased delta power and increased theta, alpha, beta, and gamma bands. Functional connectivity analysis also highlighted alterations in the brain's functional connectivity, suggesting potential effects on neural communication and information processing. Conclusion: This study provides compelling evidence of Zentangle's impact on EEG data, aligning it with equanimity and tranquility consistent with previous mindfulness research. These findings underscore Zentangle as an effective mindfulness practice, potentially enhancing cognitive focus and emotional well-being, and emerging as a valuable intervention for improving mental health and overall well-being. © 2024 The Author(s). Brain and Behavior published by Wiley Periodicals LLC.

关键词： art therapy electroencephalography mediation mindfulness well-being Zentangle

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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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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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CoAl2O4 nanoparticles modified carbon nanofibers as high-efficiency bifunctional electrocatalyst: An efficient electrochemical aqueous asymmetric supercapacitors and non-enzymatic electrochemical sensors

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Journal of Alloys and Compounds 2023年 931卷 1页

作者： Chinnapaiyan, Sathishkumar das, Himadri Tanaya Chen, Shen-Ming Govindasamy, Mani Alshgari, Razan A. Fan, Chi-Hsuan Huang, Chi-Hsien Department of Chemical Engineering and Biotechnology National Taipei University of Technology Taipei10608 Taiwan Centre for Advanced Materials and Applications Utkal University Vani vihar Odisha Bhubaneswar751004 India Department of Materials Engineering Ming Chi University of Technology New Taipei City243303 Taiwan International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan Chemistry Department College of Science King Saud University Riyadh11451 Saudi Arabia Korea University of Technology and Education Chungcheongnam-do Cheonan-si31253 Korea Republic of Division of Rheumatology Allergy and Immunology Chang Gung Memorial Hospital Taoyuan33378 Taiwan Research Center for Intelligent Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan

The thriving energy demand of the gradually increasing population and modernized life style requires development in energy storage devices for usage in commercial electronic devices. In this particular work, we have explored electrochemical performances of bimetallic oxide CoAl2O4 and tuned its performance by decorating it on the carbon nanofibers. The CoAl2O4/CNFs are synthesized by deep eutectic solvents based hydrothermal method. The synthesized CoAl2O4 nanoparticle was found electrochemically active and the incorporation of CNFs end up boosting, its electrochemical performances as battery-type electrode. The obtained nanocomposites were characterized by various techniques. The electrochemically active CoAl2O4/CNFs exhibited 2.2-fold higher charge storage capacity than CoAl2O4. The CoAl2O4/CNFs exhibited specific capacity as high as 132 C/g at a constant applied current density of 1 A/g in 1 M KOH. The asymmetric device fabricated with CoAl2O4/CNFs electrodes exhibited excellent energy density of 20 Wh/kg at power density of 3000 W/kg. The CoAl2O4/CNFs electrode long-term stability has been minutely observed;the high Coulombic efficiency of 90% and high rate of capacity retention 95 %. In this work, an enzyme-free electrochemical sensor based on CoAl2O4/CNFs composite was developed for the detection of luteolin (LUT). Further modification of CoAl2O4/CNFs composite can improve the high surface area and catalytic capability of the composites. Under the optimal detection conditions, the prepared sensor has good linearity in the detection of LUT within range 30 nM − 73.5 μM with a limit of detection (LOd) of 0.0124 μM (12.4 nM). The stability and selectivity of the sensor is high, and can be used to detect LUT in various real samples. © 2022 Elsevier B.V.

关键词： Electrochemical sensors

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Ti-6al-4v Intervertebral Fusion Cage with Compatible Stiffness, Enhanced Fatigue Life, and Osteogenic differentiation

SSRN

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SSRN 2023年

作者： Wu, Yu-Jie Wang, Chi-Yun Feng, Kuei-Chih Chien, R.R. Mana-Ay, Haidee Kung, Shyang-Yih Hou, Kuang-Hua Tu, Chi-Shun Chen, Pin-Yi Lai, Po-Liang 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 Mechanical Engineering 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 Chang Gung Memorial Hospital Taoyuan City33305 Taiwan Department of Physics Silliman University Dumaguete City6200 Philippines Department of Mechanical Engineering Chang Gung University Taoyuan City33302 Taiwan

The 3d-printed Ti-6Al-4V intervertebral fusion cage is fabricated to be biocompatible with improved stiffness, fatigue life, and osteogenic differentiation, which are greatly enhanced by heat treatment and surface modification. The flexible cage’s life, which exceeds the standard dynamic fatigue requirement of 5x106 cycles based on the ASTM F2077 and F2267 test methods, is achieved by heat treatment at 800 ℃ in argon atmosphere, shot peening, and adjusting the α to β phase ratio to increase mechanical toughness. Surface modification via sandblasting and chemical etching removes the surface oxide layer and forms submicron pores on the surface of the cage, which significantly boosts cell proliferation, differentiation, and osteoblast mineralization. This work exhibits a novel design of Ti-6Al-4V intervertebral fusion cage with biocompatible stiffness, enhanced fatigue life, and improved osteogenic differentiation achieved by reducing residual stress, modifying surface micro-pores, and optimizing microstructure. © 2023, The Authors. All rights reserved.

关键词： Aluminum alloys

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