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Flake-like structure of SrTiO3 nanoparticles dispersed on graphene oxide: A selective and sensitive electrochemical sensor for determination of chloramphenicol in milk and honey samples

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Food Chemistry 2024年 444卷

作者： Sakaleshpur Kumar, Gagankumar Ballur Prasanna, Sanjay Lokesh Marenahalli, Bhuvan Shadakshari, Sandeep Arehalli Shivamurthy, Santhosh Rajabathar, Jothi Ramalingam Chimatahalli Shanthakumar, Karthik Han, Young-Kyu Department of Chemistry SJCE JSS Science and Technology University Karnataka570006 India Department of Energy and Materials Engineering Dongguk University-Seoul Seoul100-715 Korea Republic of Taipei10608 Taiwan International PhD Program for Biomedical Engineering Taipei Medical University 250 Wuxing St Taipei11031 Taiwan N.M.K.R.V. College for Women's Karnataka 560011 India Department of Chemistry College of Science King Saud University P.O. Box. 2455 Riyadh11451 Saudi Arabia

The use of Chloramphenicol (CAP), a potent antibiotic with broad-spectrum capabilities in food-producing animals has been restricted by the European Union and several other countries due to its severe side effects. Thus, CAP must be detected quickly and sensitively. In this investigation, the preparation of SrTiO3 nanoparticles was carried out utilizing a hydrothermal technique. The as-synthesized strontium titanate was decorated on the graphene oxide (SrTiO3/GO) using an ultrasonication method. An electrochemical sensor was developed by employing a modified electrode consisting of SrTiO3/GO, which can accurately detect CAP in food samples. The synergistic effect of SrTiO3 and GO could improve the peak current response. Remarkably, the SrTiO3/GO-modified glassy carbon electrode has a LOD and sensitivity of 6.08 µM nM and 2.771 µA·μM−1·cm−2, respectively. This modified electrode was evaluated in food samples and had an outstanding reaction with a high percentage of recovery, which makes it a potential electrocatalyst for CAP detection. © 2024 Elsevier Ltd

关键词： Titanium compounds

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Enhanced electrochemical detection of tartrazine in beverages and liquid soap via nickel phosphide-adorned functionalized carbon nanofibers

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Journal of the Taiwan Institute of Chemical Engineers 2024年 157卷

作者： Gokulkumar, Kumar Huang, Song-Jeng Kogularasu, Sakthivel Aljuwayid, Ahmed M. Maheshwaran, Selvarasu Govindasamy, Mani Department of Mechanical Engineering National Taiwan University of Science and Technology Taipei City106335 Taiwan Super micro mass research and technology center Cheng Shiu University Kaohsiung833301 Taiwan Center for Environmental Toxin and Emerging-Contaminant Research Cheng Shiu University Kaohsiung833301 Taiwan Department of Chemistry College of Science King Saud University P. O. Box 2455 Riyadh11451 Saudi Arabia Department of Aeronautics and Astronautics National Cheng Kung University Tainan701 Taiwan 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

Background: Tartrazine (TAT) is a widely used food colorant dye, offering an orange-yellow hue in various products such as foods, cosmetics, and pharmaceuticals. Despite its popularity, TAT is banned in several countries due to its potential health risks, including respiratory issues, migraines, and skin allergies. Moreover, TAT is linked with adverse effects on human physiology, including mutagenicity, biliary cirrhosis, changes in liver and kidney functions, and neurodegeneration at varying doses. Consequently, the detection of this food additive is crucial for safeguarding human health and protecting aquatic organisms. Methods: In this study, a novel sensor was developed for the detection of TAT, utilizing a composite material made from nickel phosphide decorated with functionalized carbon nanofiber (Ni2P@f-CNF). The Ni2P@f-CNF was synthesized and characterized through several techniques, including X-ray diffraction, X-ray photoelectron spectroscopy, field emission-scanning electron microscopy, and elemental mapping. The composite was then integrated with a glassy carbon electrode to create a sensor. The sensor's performance was evaluated in terms of detection limit, linear range, selectivity, sensitivity, reproducibility, repeatability, and long-term stability. Main Findings: The developed Ni2P@f-CNF composite sensor displayed a lower detection limit of 0.011 µM and a broad linear range from 0.01 to 1875 µM. Its selectivity and sensitivity were exceptional, primarily due to the catalytic activity of the Ni2P@f-CNF composite towards TAT. The sensor also demonstrated excellent reproducibility, repeatability, and notable long-term stability. Importantly, when applied in real-world scenarios, the sensor successfully detected TAT in soft drink and liquid soap samples, yielding high recovery rates between 97.45 % to 99.37 % and 98.26 % to 99.01 %, respectively, underscoring its potential applicability in practical settings. © 2024 Taiwan Institute of Chemical Engineer

关键词： Nickel compounds

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Research highlights

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Lab on a Chip 2013年第10期13卷 1842-1845页

作者： João Ribas Mark W. Tibbitt Mehmet R. Dokmeci Ali Khademhosseini Center for Biomedical Engineering Department of Medicine Brigham and Women's Hospital Harvard Medical School Cambridge Massachusetts 02139 USA Harvard-MIT Division of Health Sciences and Technology Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA PhD Program in Experimental Biology and Biomedicine CNC-Center for Neuroscience and Cell Biology and Institute for Interdisciplinary Research (IIIUC) University of Coimbra 3004-517 Coimbra Portugal Biocant–Center of Innovation and Biotechnology 3060-197 Cantanhede Portugal Department of Chemical and Biological Engineering University of Colorado Boulder Colorado 80303 USA Wyss Institute for Biologically Inspired Engineering Harvard University Boston Massachusetts 02115 USA World Premier International–Advanced Institute for Materials Research (WPI-AIMR) Tohoku University Sendai 980-8577 Japan

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Dual-Targeting EGCG/NO-Supplying protein assembled nanoparticles with Multi-Synergistic effects against atherosclerosis

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Chemical engineering Journal 2024年 493卷

作者： Lin, Chi Cheng, Tsai-Mu Liu, Yun-Chun Hsu, Fang-Yu Shih, Chun-Ming Tsai, Min-Lang Shih, Chun-Che Mi, Fwu-Long Graduate Institute of Medical Sciences College of Medicine Taipei Medical University Taipei11031 Taiwan The PhD Program for Translational Medicine College of Medical Science and Technology Taipei Medical University Taipei11031 Taiwan Taipei Heart Institute Taipei Medical University Taipei11031 Taiwan Department of Food Science National Taiwan Ocean University Keelung20224 Taiwan Department of Biochemistry and Molecular Cell Biology School of Medicine College of Medicine Taipei Medical University Taipei11031 Taiwan Division of Cardiology and Cardiovascular Research Center Taipei Medical University Hospital Taipei11031 Taiwan Division of Cardiovascular Surgery Department of Surgery Wan Fang Hospital Taipei Medical University Taipei11031 Taiwan Institute of Clinical Medicine School of Medicine National Yang-Ming Chiao Tung University Taipei Taiwan Department of Surgery School of Medicine College of Medicine Taipei Medical University Taipei11031 Taiwan Graduate Institute of Nanomedicine and Medical Engineering College of Biomedical Engineering Taipei Medical University Taipei11031 Taiwan International Ph.D. Program for Cell Therapy and Regeneration Medicine College of Medicine Taipei Medical University Taipei Taiwan

Limited therapeutic options are available to effectively preventing atherosclerosis. Inflammatory endothelial cells, foamy macrophages, and high protease levels contribute to atherosclerotic plaque formation. Studies have shown that catechins effectively scavenge reactive oxygen species (ROS), inhibit monocyte adhesion and reduce cholesterol levels, while nitric oxide (NO) enhances endothelial function. However, due to the poor stability and bioavailability of catechins and the toxicity from the burst release of current synthetic small molecules NO donor, effective delivery of these bioactive compounds to treat atherosclerosis is still a challenge. Herein, a catechin/protein-based NO donor co-delivery nanosystem was designed for combinatorial anti-atherosclerotic therapy. We engineered a (−)-epigallocatechin-3-gallate (EGCG)/NO-releasing protein co-assembled nanocomplex based on specific catechin-protein interactions. Furthermore, the nanocomplex was surface modified with fucoidan (Fu), a sulfated polysaccharide with anti-inflammatory activity. This nanocomplex exhibits sensitivity to ROS, pH, and enzymes. The Fu-functionalized nanoparticles specifically accumulates in atherosclerotic plaques mediated by P-selectin on inflamed endothelial cells and scavenger receptor A (SR-A) on foamy macrophages. Under environmental stimuli that simulate the condition of plaque, the nanoparticles are readily activated to release EGCG and NO in response to excess ROS and high protease levels, exerting the multi-synergistic anti-atherosclerosic effects on reducing monocyte adhesion, promoting NO production to proliferate endothelial cells, lowering ROS levels, and decreasing the foam cell formation in vitro, and reducing lipid accumulation, plaque size, and inflammatory cytokines release in high-fat diet-induced atherosclerosis model in ApoE−/− mice. The integration of plaques targeting ability and multiple therapeutic functions can provide an advanced therapeutic strategy for athero

关键词： Nitric oxide

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Lab on a Chip 2013年第4期13卷 599-601页

作者： Francesco Piraino João Ribas Mehmet R. Dokmeci Ali Khademhosseini Bioengineering Department Politecnico di Milano Piazza Leonardo da Vinci 32 20133 Milano Italy Center for Biomedical Engineering Department of Medicine Brigham and Women's Hospital Harvard Medical School Cambridge Massachusetts 02139 USA Harvard-MIT Division of Health Sciences and Technology Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA Biocant-Center of Innovation and Biotechnology 3060-197 Cantanhede Portugal PhD Program in Experimental Biology and Biomedicine CNC-Centre for Neuroscience and Cell Biology 3004-517 Coimbra Portugal Wyss Institute for Biologically Inspired Engineering Harvard University Boston Massachusetts 02115 USA World Premier International – Advanced Institute for Materials Research (WPI-AIMR) Tohoku University Sendai 980-8577 Japan

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Green synthesis of iron oxide nanoparticles using Pterolobium hexapetalum (roth) santapau & wagh leaves extract and their biological applications

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Biocatalysis and Agricultural Biotechnology 2023年 54卷

作者： Loganathan, Settu Govindasamy, Mani Habila, Mohamed A. Manimaran, Kumar Department of Botany Government Arts College Tamil Nadu Dharmapuri 636 705 India Department of Anatomy Saveetha Dental College and Hospital Saveetha Institute of Medical and Technical Sciences Tamil Nadu Chennai 600077 India International 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 Department of Chemistry College of Science King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia Research Center for Applied Microbiology National Research and Innovation Agency (BRIN) JI. Raya Bogor Km. 46 Cibinong 16911 Indonesia Korea University 145 Anam-ro Seongbuk-gu Seoul South Korea

Plants produce several secondary metabolites, which have a variety of therapeutic applications. In this study, green synthesis of Iron oxide nanoparticles (FeO-NPs) utilized Pterolobium hexapetalum aqueous leaf extract (Ph-ALE). The UV, XRD, IR, FE-SEM-EDAX, and HR-TEM with SAED patterns were characterized by Ph-FeO-NPs. In UV–visible spectra, Ph-FeO-NPs had an absorbance peak at 290 nm. The X-ray diffraction pattern showed their crystalline nature of Ph-FeO-NPs. The FT-IR spectrum of the synthesized Ph-FeO-NPs revealed the presence of various functional groups such as, Alcohols & Phenols, Aldehyde, Alkene, Carboxylic acids, Chloride and Bromide & Iodide. The FE-SEM and HR-TEM image of Ph-FeO-NPs shows a spherical shape with a size ranging from 20 to 28 nm. The EDaX study displayed the presence of Fe signals of Ph-FeO-NPs. Further, the green synthesized Ph-FeO-NPs demonstrated significant antibacterial activity, with the maximum zone of inhibition was noticed in S. typhi at 50 μg. The antioxidant study of the synthesized Ph-FeO-NPs displayed remarkable activity against DPPH, ABTS radical scavenging assays with an IC₅₀ value of 134.42;367.39 μg/mL respectively. In moreover, the synthesized Ph-FeO-NPs exhibited strong anticancer activity against the A549 cell line with an IC₅₀ value of 54.32 μg/mL. In addition, the synthesized Ph-FeO-NPs demonstrated potential larvicidal activity against Cx. quinquefasciatus larvae with an LC₅₀ & LC₉₀ values of 2.437;10.639 mg/mL, respectively. As a result, the synthesized Ph-FeO-NPs displayed exceptional clinical performance and serve as a source of medication as well as a platform for the development of novel drugs. © 2023

关键词： Anti-proliferative Antioxidant Larvicidal activity Pterolobium hexapetalum

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Enhancing Bending Strength of Polylactic Acid biomedical Polymer Rods Via Ultrasound-Assisted Continuous Drive Friction Welding

SSRN

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SSRN 2024年

作者： Kuo, Chil-Chyuan Chen, Hong-Wei Farooqui, Armaan Huang, Song-Hua Tseng, Shih-Feng Department of Mechanical Engineering Ming Chi University of Technology No. 84 Gungjuan Road New Taipei City24301 Taiwan Research Center for Intelligent Medical Devices Ming Chi University of Technology No. 84 Gungjuan Road New Taipei City24301 Taiwan Department of Mechanical Engineering Chang Gung University No.259 Wenhua 1st Rd. Guishan Dist. Taoyuan City33302 Taiwan Center for Reliability Engineering Ming Chi University of Technology No. 84 Gungjuan Road Taishan District New Taipei City24301 Taiwan International Ph. D. Program in Innovative Technology of Biomedical Engineering and Medical Device Ming Chi University of Technology No. 84 Gungjuan Road New Taipei City24301 Taiwan Department of Mechanical Engineering Chhattisgarh Swami Vivekanand Technical University Chhattisgarh Bhilai491107 India Li-Yin Technology Co. Ltd. No. 37 Lane 151 Section 1 Zhongxing Road Wugu District New Taipei City241 Taiwan Department of Mechanical Engineering National Taipei University of Technology No. 1 Sec. 3 Zhongxiao E. Rd. Da'an Dist. Taipei City106344 Taiwan Ming Chi University of Technology Taiwan

Polylactic acid (PLA) is extensively utilized in the fabrication of medical devices. However, due to the limitations imposed by the size of additive manufacturing platforms, large medical devices often require segmentation into multiple components for printing, which are then assembled post-fabrication. In laboratory settings, nuts and bolts are commonly employed to join these printed segments. This method, however, poses significant challenges as the mechanical fasteners can become loose or detach entirely during the repetitive movements of large medical devices. Consequently, enhancing the joining technology for printed parts to form larger medical devices has emerged as a critical area of research. The primary goal of this study is to improve the joint strength of PLA polymer rods through ultrasound-assisted rotary friction welding (UARFW). Notably, the proposed technique aligns with sustainable development goals by offering high energy efficiency and minimizing environmental impact. The bending strength of the welded joints is significantly enhanced because the ultrasonic waves facilitate the flow of molten material within the weld joint during UARFW. The improvement in bending strength is influenced by the positioning of the ultrasonic oscillator. Optimal results are achieved when the ultrasonic oscillator is positioned at 5 mm along the Z-axis of the CNC lathe, leading to an approximate 97% increase in bending strength due to enhanced molten material flow. Fracture analysis reveals that failures occur within the base material rather than at the weld interface, indicating that the weld interface possesses superior strength compared to the base material. Additionally, the surface hardness of the weld interface increases by up to 25.7% compared to the surface hardness achieved with conventional rotary friction welding without ultrasonic-assisted micro-vibration. The discrepancy between the maximum temperatures of the weld bead obtained from numerical simulations

关键词： Friction welding

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Correction: Biomass derived nitrogen functionalized carbon nanodots for nanomolar determination of levofloxacin in pharmaceutical and water samples

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Mikrochimica acta 2023年第7期190卷 269页

作者： Velusamy Arul Natarajan Sampathkumar Sindhuja Kotteeswaran Ponnusamy Arul Ahmed Muteb Aljuwayid Mohamed A Habila Mani Govindasamy Department of Chemistry Sri Eshwar College of Engineering (Autonomous) Coimbatore 641 202 Tamil Nadu India. kvarulchem6@***. Department of Chemistry Korea University 145 Anam-Ro Seongbuk-Gu Seoul South Korea. kvarulchem6@***. Department of Chemistry SSM College of Arts and Science Dindigul 624002 Tamil Nadu India. International PhD Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan. Department of Chemical Engineering and Biotechnology Institute of Biochemical and Biomedical Engineering National Taipei University of Technology Taipei 106 Taiwan ROC. vpsarul@***. Department of Chemistry College of Science King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia. International PhD Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan. govindasamy420700@***. Research Center for Intelligence Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan. govindasamy420700@***. Department of Research and Innovation Saveetha School of Engineering SIMATS 602105 Chennai India. govindasamy420700@***.

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Assessment of circulating extracellular vesicles from calorie-restricted mice and humans in ischaemic injury models

Journal of Extracellular Biology

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Journal of Extracellular Biology 2023年第5期2卷 e86页

作者： Jaimes, Manuel S. V. Liao, Chia-Te Chen, Max M. Czosseck, Andreas Lee, Tsung-Lin Chou, Yu-Hsiang Chen, Yung-Ming Lin, Shuei-Liong Lai, James J. Lundy, David J. Graduate Institute of Biomedical Materials & Tissue Engineering Taipei Medical University Taipei Taiwan Division of Nephrology Department of Internal Medicine Shuang Ho Hospital Taipei Medical University New Taipei Taiwan Division of Nephrology Department of Internal Medicine School of Medicine College of Medicine Taipei Medical University Taipei Taiwan TMU Research Center of Urology and Kidney (TMU-RCUK) Taipei Medical University Taipei Taiwan Division of Nephrology Department of Internal Medicine National Taiwan University Hospital College of Medicine National Taiwan University Taipei Taiwan Graduate Institute of Physiology College of Medicine National Taiwan University Taipei Taiwan Department of Bioengineering University of Washington Seattle WA United States Department of Materials Science and Engineering National Taiwan University of Science and Technology Taipei Taiwan International PhD Program in Biomedical Engineering Taipei Medical University Taipei Taiwan Center for Cell Therapy Taipei Medical University Hospital Taipei Taiwan

Calorie restriction (CR) and fasting affect lifespan, disease susceptibility and response to acute injury across multiple animal models, including ischaemic injuries such as myocardial infarction or kidney hypoxia. The cargo and function of circulating extracellular vesicles (EV) respond to changes in host physiology, including exercise, injury, and other interventions. Thus, we hypothesised that EVs induced following CR may reflect some of the beneficial properties of CR itself. In a pilot study, EVs were isolated from mice following 21 days of 30 % CR, and from eight human donors after 72 h water-only fasting. EV size, concentration and morphology were profiled by NTA, western blot and cryoEM, and their function was assessed using multiple assays related to ischaemic diseases. We found that EVs from post-fasting samples better protected cardiac cells from hypoxia/reperfusion (H/R) injury compared to pre-fasting EVs. However, there was no difference when used to treat H/R-injured kidney epithelial cells. Post-fasting derived EVs slowed the rate of fibroblast migration and slightly reduced macrophage inflammatory gene expression compared to pre-fasting derived EVs. Lastly, we compared miRNA cargos of pre- and post-fasting human serum EVs and found significant changes in a small number of miRNAs. We conclude that fasting appears to influence EV cargo and function, with varied effects worthy of further exploration. © 2023 The Authors. Journal of Extracellular Biology published by Wiley Periodicals, LLC on behalf of the international Society for Extracellular Vesicles.

关键词： calorie restriction cardiomyocyte diet extracellular vesicle fasting hypoxia ketone macrophage microRNA serum

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Correction to: Biological synthesis and characterization of iron oxide (FeO) nanoparticles using Pleurotus citrinopileatus extract and its biomedical applications

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Biomass Conversion and Biorefinery 2023年第11期14卷 12587-12587页

作者： Manimaran, Kumar Yanto, Dede Heri Yuli Govindasamy, Mani Karunanithi, Bogeshwaran Alasmary, Fatmah Ali Habab, Reem Abdulrahman Research Center for Applied Microbiology National Research and Innovation Agency (BRIN) Cibinong Republic of Indonesia Department of Product Development Institute of Biotechnology Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences (SIMATS) Chennai India Faculty International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City Taiwan Korea University Seongbuk-gu Republic of Korea Department of Research and Innovation Saveetha School of Engineering SIMATS Thandalam India Department of Petroleum Engineering Dhaanish Ahmed College of Engineering Chennai India Department of Chemistry College of Science King Saud University Riyadh Saudi Arabia

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