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Priya TS, Chen TW, Chen SM, Kokulnathan T, Akilarasan M, Liou WC, Al-Mohaimeed AM, Ali MA, Elshikh MS, Yu J. In-situ growth of MOF-derived Co 3S 4@MoS 2 heterostructured electrocatalyst for the detection of furazolidone. Chemosphere 2024; 356:141895. [PMID: 38579947 DOI: 10.1016/j.chemosphere.2024.141895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 03/25/2024] [Accepted: 04/01/2024] [Indexed: 04/07/2024]
Abstract
The over-exploitation of antibiotics in food and farming industries ruined the environmental and human health. Consequently, electrochemical sensors offer significant advantages in monitoring these compounds with high accuracy. Herein, MOF-derived hollow Co3S4@MoS2 (CS@MS) heterostructure has been prepared hydrothermally and applied to fabricate an electrochemical sensor to monitor nitrofuran class antibiotic drug. Various spectroscopic methodologies have been employed to elucidate the structural and morphological information. Our prepared electrocatalyst has better electrocatalytic performance than bare and other modified glassy carbon electrodes (GCE). Our CS@MS/GCE sensor exhibited a highly sensitive detection by offering a low limit of detection, good sensitivity, repeatability, reproducibility, and stability results. In addition, our sensor has shown a good selectivity towards the target analyte among other potential interferons. The practical reliability of the sensor was measured by analyzing various real-time environmental and biological samples and obtaining good recovery values. From the results, our fabricated CS@MS could be an active electrocatalyst material for an efficient electrochemical sensing application.
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Affiliation(s)
- Thangavelu Sakthi Priya
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom.
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan.
| | - Thangavelu Kokulnathan
- National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan
| | - Muthumariappan Akilarasan
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan
| | - Wen-Chin Liou
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan
| | - Amal M Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - M Ajmal Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Jaysan Yu
- Well Fore Special Wire Corporation, 10, Tzu-Chiang 7th., Chung-Li Industrial Park, Taoyuan, Taiwan
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2
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Karuppusamy N, Jeyaraman A, Chen TW, Chen SM, Packiaraj DDF, Al-Mohaimeed AM, Al-Onazi WA, Elshikh MS, Yu J. Synergistic Manganese Cobalt Phosphide core-shell for the Electrochemical Detection of Methyl Parathion in Food Sample. Food Chem 2024; 450:139152. [PMID: 38653046 DOI: 10.1016/j.foodchem.2024.139152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/22/2024] [Accepted: 03/24/2024] [Indexed: 04/25/2024]
Abstract
The development of a robust electrocatalyst for the electrochemical sensor for hazardous pesticides will reduce its effects on the ecosystem. Herein, we synthesized the robust manganese cobalt phosphide (MnCoP) - Core-shell as an electrochemical sensor for the determination of hazardous pesticide methyl parathion (MP). The MnCoP- Core-shell was prepared with the sustainable self-template route can help with the larger surface area. The Core-shell structure of MnCoP possesses a higher active surface area which increases the electrocatalytic performance and is utilized to improve the electrochemical MP reduction with the synergism of the core and shell structure. Remarkably, it realizes the higher sensitivity (0.014 μA μM-1 cm-2) of MnCoP- Core-shell/GCE achieves towards MP with lower limit of detection (LoD 50 nM) and exceptional recovery rate of MP in vegetable samples are achieved with the differential pulse voltammetry (DPV) technique. The MnCoP- Core-shell electrode reserved their superior electrochemical performances with high reproducibility and repeatability. This prominent activity of the MnCoP core-shell towards the MP in real sample analysis, makes it a promising electrochemical sensor for the detection of MP.
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Affiliation(s)
- Naveen Karuppusamy
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Anupriya Jeyaraman
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom.
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
| | - Don Disouza Francis Packiaraj
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Amal M Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Wedad A Al-Onazi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Jaysan Yu
- Well Fore special wire corporation, 10, Tzu-Chiang 7rd., Chung-Li Industrial Park, Taoyuan, Taiwan
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Chen TW, Chen SM, Anushya G, Kannan R, G. Al-Sehemi A, Alargarsamy S, Gajendran P, Ramachandran R. Development of Different Kinds of Electrocatalyst for the Electrochemical Reduction of Carbon Dioxide Reactions: An Overview. Molecules 2023; 28:7016. [PMID: 37894499 PMCID: PMC10609525 DOI: 10.3390/molecules28207016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/26/2023] [Accepted: 10/02/2023] [Indexed: 10/29/2023] Open
Abstract
Significant advancements have been made in the development of CO2 reduction processes for applications such as electrosynthesis, energy storage, and environmental remediation. Several materials have demonstrated great potential in achieving high activity and selectivity for the desired reduction products. Nevertheless, these advancements have primarily been limited to small-scale laboratory settings, and the considerable technical obstacles associated with large-scale CO2 reduction have not received sufficient attention. Many of the researchers have been faced with persistent challenges in the catalytic process, primarily stemming from the low Faraday efficiency, high overpotential, and low limiting current density observed in the production of the desired target product. The highlighted materials possess the capability to transform CO2 into various oxygenates, including ethanol, methanol, and formates, as well as hydrocarbons such as methane and ethane. A comprehensive summary of the recent research progress on these discussed types of electrocatalysts is provided, highlighting the detailed examination of their electrocatalytic activity enhancement strategies. This serves as a valuable reference for the development of highly efficient electrocatalysts with different orientations. This review encompasses the latest developments in catalyst materials and cell designs, presenting the leading materials utilized for the conversion of CO2 into various valuable products. Corresponding designs of cells and reactors are also included to provide a comprehensive overview of the advancements in this field.
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Affiliation(s)
- Tse-Wei Chen
- Department of Materials, Imperial College London, London SW7 2AZ, UK;
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan;
| | - Ganesan Anushya
- Department of Physics, St. Joseph College of Engineering, Sriperumbudur, Chennai 602 117, India;
| | - Ramanujam Kannan
- Department of Chemistry, Sri Kumara Gurupara Swamigal Arts College (Affiliated to Manomaniam Sundaranar University), Srivaikuntam, Thoothukudi 628 619, India;
| | - Abdullah G. Al-Sehemi
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia;
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Saranvignesh Alargarsamy
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan;
| | - Pandi Gajendran
- Department of Chemistry, The Madura College (Affiliated to Madurai Kamaraj University), Vidya Nagar, Madurai 625 011, India;
| | - Rasu Ramachandran
- Department of Chemistry, The Madura College (Affiliated to Madurai Kamaraj University), Vidya Nagar, Madurai 625 011, India;
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Chen TW, Chen SM, Anushya G, Kannan R, Veerakumar P, Alam MM, Alargarsamy S, Ramachandran R. Metal-Oxides- and Metal-Oxyhydroxides-Based Nanocomposites for Water Splitting: An Overview. Nanomaterials (Basel) 2023; 13:2012. [PMID: 37446527 DOI: 10.3390/nano13132012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/17/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023]
Abstract
Water electrolysis is an important alternative technology for large-scale hydrogen production to facilitate the development of green energy technology. As such, many efforts have been devoted over the past three decades to producing novel electrocatalysis with strong electrochemical (EC) performance using inexpensive electrocatalysts. Transition metal oxyhydroxide (OxH)-based electrocatalysts have received substantial interest, and prominent results have been achieved for the hydrogen evolution reaction (HER) under alkaline conditions. Herein, the extensive research focusing on the discussion of OxH-based electrocatalysts is comprehensively highlighted. The general forms of the water-splitting mechanism are described to provide a profound understanding of the mechanism, and their scaling relation activities for OxH electrode materials are given. This paper summarizes the current developments on the EC performance of transition metal OxHs, rare metal OxHs, polymers, and MXene-supported OxH-based electrocatalysts. Additionally, an outline of the suggested HER, OER, and water-splitting processes on transition metal OxH-based electrocatalysts, their primary applications, existing problems, and their EC performance prospects are discussed. Furthermore, this review article discusses the production of energy sources from the proton and electron transfer processes. The highlighted electrocatalysts have received substantial interest to boost the synergetic electrochemical effects to improve the economy of the use of hydrogen, which is one of best ways to fulfill the global energy requirements and address environmental crises. This article also provides useful information regarding the development of OxH electrodes with a hierarchical nanostructure for the water-splitting reaction. Finally, the challenges with the reaction and perspectives for the future development of OxH are elaborated.
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Affiliation(s)
- Tse-Wei Chen
- Department of Materials, Imperial College London, London SW7 2AZ, UK
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Ganesan Anushya
- Department of Physics, St. Joseph College of Engineering, Chennai 602117, India
| | - Ramanujam Kannan
- Department of Chemistry, Sri Kumara Gurupara Swamigal Arts College, Thoothukudi 628619, India
| | - Pitchaimani Veerakumar
- Department of Biochemistry, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, India
| | - Mohammed Mujahid Alam
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Saranvignesh Alargarsamy
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Rasu Ramachandran
- Department of Chemistry, The Madura College, Vidya Nagar, Madurai 625011, India
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Muhammad Zohaib H, Saqlain M, Jamil H, Hameed H, Ali M, Haq M, Y Capangpangan R, C Alguno A, Chen TW, Ahmed Alkhatib S, Alarjani KM, Hammad RM, Mehmood A. Investigating the effect of selenium nano-particles on microbial activity and cancerous cell line of MCF-7 and MDA-MB-231. Pak J Pharm Sci 2023; 36:1331-1336. [PMID: 37606024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Selenium is a mineral that is essential to human health and is widely recognized for its responsibilities as a powerful anticancer vitamin and antibacterial vitamin. Selenium also plays a critical part in the production of vitamin D. The purpose of this research was to evaluate the particular effects that selenium nano-particles (SeNPs') had on the infectious agent Staphylococcus aureus as well as the breast cancer cell lines MCF-7 and MDA-MB-231. The proportion of MDA-MB-231 and MCF-7 cells that underwent late apoptosis was dramatically increased by selenium nanoparticles, whereas the number of cells that underwent cell expansion was significantly reduced. There was a wide range of variability in the effects of selenium nanoparticle treatment on cell growth apoptosis, apoptosis rates and patterns of cell cycle arrest. After 2, 4 and 6 hours, researchers found that the development of S. aureus was significantly reduced by selenium nanoparticles at doses of 8.0, 16.0 and 32g/mL. In addition to this, the presence of selenium nanoparticles resulted in a reduced percentage of bacteria that were still alive. According to the findings of the study, there is a need for more research into selenium nanoparticles with the intention of preventing and treating infections caused by S. aureus.
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Affiliation(s)
- Hafiz Muhammad Zohaib
- Department School of Chemistry and Chemical Engineering, University Beijing Institute of Technology, Beijing, China
| | - Madiha Saqlain
- Department School of Chemistry and Chemical Engineering, University Beijing Institute of Technology, Beijing, China
| | | | - Hira Hameed
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan
| | | | - Mohsina Haq
- Department of Microbiology and Pathology, Peshawar Medical College Ripha International University, Islamabad, Pakistan
| | - Rey Y Capangpangan
- Department of Physical Sciences and Mathematics, College of Marine and Allied Sciences, Mindanao State University at Naawan, Poblacion, Naawan, Misamis Oriental, Philippines
| | - Arnold C Alguno
- Department of Physics and Premier Research Institute of Science and Mathematics (PRISM), Mindanao State University, Iligan Institute of Technology Tibanga Highway, Iligan City, Philippines
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | | | - Khaloud Mohammed Alarjani
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Ahad Mehmood
- Department of Microbiology, Abbottabad University of Science and Technology, Abbottabad, Pakistan
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Hameed M, Bharadwaj A, Mumtaz M, Hussain M, Goyal M, Fatima N, Juyal A, Hani T, Mahjoob Khalaf O, M Aljowaie R, Chen TW, Abdul Salam M. Evaluating the effectiveness of Moringa oleifera leaf capsules in controlling glycemic and hypertension levels in type 2 diabetes patients. Pak J Pharm Sci 2023; 36:1343-1347. [PMID: 37606026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Moringa oleifera (MO) phytochemicals and therapeutic properties improve hyperglycemia and treat type 2 diabetes. Thus, this study examined the effects of MO leaf capsules on blood glucose management in type 2 diabetic mellitus (T2DM) and hypertension and their safety. A prospective placebo-controlled experiment randomly assigned 24 patients to receive 3g and 6g of MO leaf capsules twice a day or a placebo for three months. Pre- and post-study lab and clinical outcomes were assessed. The placebo control group and 3g MO leaf showed a minor change, whereas 6g and control placebo showed a considerable drop in examined features. MO usage was safe. In T2DM patients, MO leaves lowered blood pressure, requiring further study. MO leaves may help T2DM patients manage blood pressure and blood sugar, according to the study. MO's therapeutic components need more research.
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Affiliation(s)
- Mishal Hameed
- Department of Microbiology, Abbottabad University of Science and Technology, Abbottabad, Pakistan
| | - Alok Bharadwaj
- Department of Biotechnology, GLA University, Mathura (U.P.), India
| | - Mamoona Mumtaz
- Shifa College of Pharmaceutical Sciences, Shifa Tameer e Milat University, Islamabad, Pakistan
| | - Mumtaz Hussain
- Department of Microbiology and Immunology, COMSATS University, Islamabad, Pakistan
| | - Mayank Goyal
- IES Institute of Pharmacy, IES University, Bhopal, Madhya Pradesh, India
| | - Nida Fatima
- Department of Zoology, Rawalpindi Women University, Rawalpindi, Pakistan
| | - Ashima Juyal
- Department of Electronics & Communication Engineering, Uttaranchal Institute of Technology, Uttaranchal University, Dehradun, India
| | - Thamer Hani
- Dentistry Department, Al-Turath University College, Baghdad, Iraq
| | | | - Reem M Aljowaie
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, United Kingdom
| | - Maria Abdul Salam
- Department of Zoology, Rawalpindi Women University, Rawalpindi, Pakistan
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Li YP, Chen JY, Chen TW, Lu WD. Atrial high-rate episodes intensify R 2CHA 2DS 2-VASc score for prognostic stratification in pacemaker patients. Sci Rep 2023; 13:7640. [PMID: 37169860 PMCID: PMC10175262 DOI: 10.1038/s41598-023-34784-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023] Open
Abstract
Patients with device detected atrial high-rate episodes (AHRE) have an increased risk of MACE. The R2CHA2DS2-VASc, CHADS2, R2CHADS2 and CHA2DS2-VASc score have been investigated for predicting major adverse cardiovascular events (MACE) in different groups of patients. We aimed to evaluate the R2CHA2DS2-VASc score in combination with AHRE ≥ 6 min for predicting MACE in patients with dual-chamber PPM but no prior atrial fibrillation (AF). We retrospectively enrolled 376 consecutive patients undergoing dual-chamber PPM implantation and no prior AF. The primary endpoint was subsequent MACE. For all patients in the cohort, CHADS2, R2CHADS2, CHA2DS2-VASc, R2CHA2DS2-VASc scores and AHRE ≥ or < 6 min were determined. AHRE was recorded as a heart rate > 175 bpm (Medtronic) or > 200 bpm (Biotronik) lasting ≥ 30 s. Multivariate Cox regression analysis with time-dependent covariates was used to determine the independent predictors of MACE. ROC-AUC analysis was performed for CHADS2, R2CHADS2, CHA2DS2-VASc, and R2CHA2DS2-VASc scores and then adding AHRE ≥ 6 min to the four scores. The median age was 77 years, and 107 patients (28.5%) developed AHRE ≥ 6 min. After a median follow-up of 32 months, 46 (12.2%) MACE occurred. Multivariate Cox regression analysis showed that R2CHA2DS2-VASc score (HR, 1.485; 95% CI, 1.212-1.818; p < 0.001) and AHRE ≥ 6 min (HR, 2.125; 95% CI, 1.162-3.887; p = 0.014) were independent predictors for MACE. The optimal R2CHA2DS2-VASc score cutoff value was 4.5 (set at ≥ 5), with the highest Youden index (AUC, 0.770; 95% CI, 0.709-0.831; p < 0.001). ROC-AUC analysis of the four risk scores separately combined with AHRE ≥ 6 min all showed better discriminatory power than the four scores alone (All Z-statistic p < 0.05). In patients with PPM who develop AHRE ≥ 6 min, it is crucial to perform risk assessment with either four scores to further stratify risk for MACE.
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Affiliation(s)
- Yi-Pan Li
- Division of Cardiology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng-Li Road, Tainan, 704, Taiwan
| | - Ju-Yi Chen
- Division of Cardiology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng-Li Road, Tainan, 704, Taiwan.
| | - Tse-Wei Chen
- Division of Cardiology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng-Li Road, Tainan, 704, Taiwan
| | - Wei-Da Lu
- Division of Cardiology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng-Li Road, Tainan, 704, Taiwan
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Ullah A, Maryam A, Malik G, Hameed H, Hussain K, Ahmad J, Haq I, Haq M, M Aljowaie R, Mohsen Abougazia E, Chen TW, Ahmad J, Bashir K, Ahmad L, Ahmad B. Sustained virological response to antiviral drugs in treatment of different genotypes of HCV cirrhotic patients. Pak J Pharm Sci 2023; 36:1009-1015. [PMID: 37587711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Cirrhosis and liver cancer are both caused by hepatitis C virus (HCV) infection of the liver. Patients with HCV cirrhosis may be treated with one of many antiviral medications, depending on their specific genotype. Samples of cirrhotic HCV were obtained from 190 people at the Khyber Teaching Hospital and the Hayatabad Medical Complex in Peshawar, Pakistan. Multiplex and real-time PCR were used to assess the genotypes and viral loads of the samples, respectively. Sixty patients were given sofosbuvir plus daclatasvir with ribavirin, while the remaining 56 patients were given sofosbuvir with ribavirin for a period of 12-24 weeks. LFTs were also tracked both before and after therapy. Group I (sofosbuvir + daclatasvir) had a sustained virological response of 82.70 percent. Group II (sofosbuvir + daclatasvir with ribavirin) had an 86% sustained virological response, whereas group III (84% sustained virological response) received only ribavirin. When compared to other genotypes, genotype 3 showed the most impressive sustained virologic response (SVR) to the antiviral medicines. Based on the results of this trial, we propose sofosbuvir + daclatasvir ribavirin for the treatment of cirrhotic patients with various HCV genotypes since it produces the greatest sustained virological response.
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Affiliation(s)
- Amin Ullah
- Department of Health and Biological sciences, Abasyn University, Peshawar, Pakistan
| | - Aqsa Maryam
- Nawaz Sharif Medical College, Gujrat, Pakistan
| | | | - Hira Hameed
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan
| | - Kifayat Hussain
- Department of Medical Laboratory Technology, Rehman College of Allied Health Sciences, Peshawar, Pakistan
| | - Junaid Ahmad
- Department of Health and Biological sciences, Abasyn University, Peshawar, Pakistan
| | - Ihteshamul Haq
- Department of Biomedical Science, Universita Degli Studi Di, Sassari, Italy
| | - Mohsina Haq
- Department of Microbiology, Peshawar Medical College (Ripha International University, Islamabad), Peshawar, Pakistan
| | - Reem M Aljowaie
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, United Kingdom
| | - Jamshaid Ahmad
- Centre of Biotechnology and Microbiology, University of Peshawar, Peshawar, Pakistan
| | - Kashif Bashir
- Department of Health and Biological sciences, Abasyn University, Peshawar, Pakistan
| | - Laiba Ahmad
- Khyber Medical College (KMC), Peshawar, Pakistan
| | - Bashir Ahmad
- Institiute of Biotechnology and Microbiology, Bacha Khan University Charsada, Peshawar, Pakistan
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Farooq S, Fiaz I, Ahmad H, Hameed H, Rizwan M, Khan A, Ahmad J, Farouk Elsadek M, Almoajel A, Eissa Mohammed YH, Chen TW, Ullah H, Saqib Ishaq M. Optimization of different growth parameters for maximum production of bioactive crude metabolites by Aspergillus fumigatus. Pak J Pharm Sci 2023; 36:927-934. [PMID: 37587700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Aspergillus fumigatus is a green echinulate with greenish phialides and 2.5-3 mm conidia. The diverse biological functions of A. fumigatus secondary metabolites make them interesting. The ethyl acetate extract of A. fumigatus was tested for antibacterial activity. Culture media, temperature, incubation and pH were optimized for A. fumigatus growth. Continuous 150rpm agitation incubated the fungus at 28°C for 10 days. Potato Dextrose Broth at 28°C in shaking incubator at pH 04 produced the most biomass and secondary metabolites. Metabolite antibacterial activity was tested. Salmonella flexneri had the greatest zone of inhibition at 100μl (25.66mm) while Staphylococcus aureus had the least (16.33mm). At 75μg/mL, S. flexneri showed 23.66mm activity and S. typhi 14.66mm. At 50μg/mL, S. flexneri was 21.33mm and S. typhi 12.33mmMBC was 0.01μg/μl and MIC50 varied. At 100μg/mL, the metabolites showed antifungal efficacy against Penicillium chrysogenum (26.33mm) but not A. flavus (21.33mm). A. oryzae was significantly inhibited at 75μg/mL (26.33mm) and 50μg/mL (20.33mm). 1000μl demonstrated 100% phytotoxicity, 100μl 60% and 10μl 50%. Bactrocera cucurbitae, Sitotroga cerealella and Callosobruchus maculatus were killed at 150, 100 and 75μl. Metabolites and antibiotics synergized well. Metabolites have alkanes, esters and ethers in their infrared spectra.
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Affiliation(s)
- Sidra Farooq
- Department of Health and Biological Sciences, Abasyn University, Peshawar, Pakistan
| | - Iqra Fiaz
- Amna Inayat Medical College, Lahore, Pakistan
| | - Hamza Ahmad
- Khawaja Muhammad Safdar Medical College, Sailkot, Pakistan
| | - Hira Hameed
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Rizwan
- Department of Health and Biological Sciences, Abasyn University, Peshawar, Pakistan
| | - Amjad Khan
- Department of Health and Biological Sciences, Abasyn University, Peshawar, Pakistan
| | - Junaid Ahmad
- Department of Microbiology, Immunology, Infectious diseases, Transplantation and Related Diseases, University of Rome Tor Vergata, Italy
| | - Mohamed Farouk Elsadek
- Community Health Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Alia Almoajel
- Community Health Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | | | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, United Kingdom
| | - Hafiz Ullah
- Gomal Center of Biochemistry and Biotechnology, Gomal University, D.I. Khan, Pakistan
| | - Muhammad Saqib Ishaq
- Department of Health and Biological Sciences, Abasyn University, Peshawar, Pakistan
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10
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Chen SY, Hua YH, Chen TW. [Opportunities and prospects for sports medicine in China]. Zhonghua Yi Xue Za Zhi 2023; 103:783-786. [PMID: 36864638 DOI: 10.3760/cma.j.cn112137-20220920-01978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Over the past decades, Chinese sports medicine has made remarkable progress, successfully establishing its status as a discipline and embracing unprecedented development opportunities. In the foreseeable future, "sports for health promotion", in addition to already fast development of "sports injury treatment" and "sports rehabilitation", will become the third vital advancing directions of sports medicine in China. The popularization and application of exercise prescription will become an effective and reliable approach to fulfill sports for health promotion. "Function first, early rehabilitation, return to sports" is the principle of treatment and discipline tenet that will lead the sports injury treatment and rehabilitation to achieve great breakthrough in many fields of sports medicine. With the opportunities and challenges, how to consistently identify and follow the right development path in line with our national circumstances requires the determination, perseverance, courage and wisdom of all Chinese sports medicine practitioners.
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Affiliation(s)
- S Y Chen
- Sports Medicine Institute of Fudan University, Sports Medicine Department, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Y H Hua
- Sports Medicine Institute of Fudan University, Sports Medicine Department, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - T W Chen
- Sports Medicine Institute of Fudan University, Sports Medicine Department, Huashan Hospital, Fudan University, Shanghai 200040, China
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11
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Iftikhar ZA, Shahid U, Farooq M, Kamila H, Ali N, Mastoor M, Almutairi SM, Ahmed Rasheed R, Chen TW. Investigating the nutraceutical potential of apple peel extract supplementation for regulating the glucose metabolism in hyperlipidemic Female human subjects. Pak J Pharm Sci 2023; 36:625-629. [PMID: 37548200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Hyperglycemia is a condition often observed in diabetics, dyslipidemia and obese. It is a major factor behind the development of diabetes and the reasons can be genetics, environmental factors, dietary choices and obesity. Many medicinal plants have anti-diabetic potential. This study investigated the anti-hyperglycemic effect of apple peel extract. This study also investigated the chemical characterization of apple peel. Phytochemicals including total phenolics and flavonoids were determined. Encapsulated 350mg/day was given to treatment groups. Random blood sugar, fasting blood sugar and HbA1c of 45 diabetic female adults was measured on the 0-day and 45th day. Results showed that apple peel contained moisture (14.71±3.57)%, ash (17.82±2.13)%, nitrogen free extract (32.12±3.52)%, crude protein (6.89±0.83)%, crude fiber (19.17±0.21)% and crude fat (9.91±2.31)%. Findings showed that apple peel contains magnesium (6.61±1.088), calcium (8.17±0.32), zinc (14.08±1.21) and potassium (67.21±1.86). These findings were shown in mg in kg. Apple peel extract contained total phenolic content (TPC) of 8.14±1.07 and total phenolic content (TFC) of 4.89±1.81. Apple peel extract showed a significant reduction in all blood parameters of hyperglycemia. All results were significant at p<0.05.
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Affiliation(s)
| | - Urwah Shahid
- BHU Meeray Shah Tehsil Sadiqabad, Rahim Yar Khan, Pakistan
| | | | - Haleema Kamila
- Kuwait Teaching Hospital, Peshawar Medical College, Peshawar, Pakistan
| | - Nusrat Ali
- Department of Biochemistry, HBS Medical and Dental College, Islamabad, Pakistan
| | - Maryam Mastoor
- Department of Biochemistry, Amna Inayat Medical College, Lahore, Pakistan
| | - Saeedah Musaed Almutairi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Rabab Ahmed Rasheed
- Histology & Cell Biology Department, Faculty of Medicine, King Salman International University, South Sinai, Egypt
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, United Kingdom
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12
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Gul J, Usman Tariq M, Hussain S, Shabbir H, Tahir S, Zahid A, Shabir Memon F, Chen TW, Musaed Almutairi S, S Elshikh M. Evaluation of chemical characterization and antihyperlipidemic potential of orange peel powder (Citrus sinensis) in male human subjects. Pak J Pharm Sci 2023; 36:613-617. [PMID: 37548198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Citrus sinensis is an important member of the genus Citrus which contains phenolic compounds and bioflavonoids which have antihyperlipidemic and antiatherogenic effects. It also has the potential to reduce oxidative stress. To investigate the antihyperlipidemic effect of orange peel powder was encapsulated and analyzed in hyperlipidemic patients. Results showed that it contains moisture (12.2%), ash content (7.9%), crude fat (0.78%), crude protein (12.37%) and crude fiber (13.2%). Total phenolic content and total flavonoid content were observed as 163.17 mg and 17.23mg in quercetin equivalent per gram a dry weight basis. Furthermore, the Orange peel powder was given in the form of medicinal capsules to hyperlipidemia male subjects. The experimental groups (G1 and G2) were given orange peel powder in capsules 400mg/d to the G1 group and 800mg/d to the G2 group for the time of 45 days. The serum lipid profile of patients was measured before and after the experimental trial. The result showed that G1 and G2 showed a decrease in plasma lipid parameters and increased high-density lipoprotein content in blood substantially as compared to G0. Thus, it was concluded from the results that orange peel powder depicts a significant impact on treating hyperlipidemia.
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Affiliation(s)
- Jawaria Gul
- Al-Nafees Medical College (Isra University), Islamabad, Pakistan
| | | | | | | | - Samreen Tahir
- Mohi Ud Din Islamic Medical College (MIMC), Mirpur, AJK
| | - Awais Zahid
- Post-graduate Medical Institute (PGMI), Lahore, Pakistan
| | - Fawad Shabir Memon
- Department of Quality Control, National Institute of Health, Islamabad, Pakistan
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, United Kingdom
| | - Saeedah Musaed Almutairi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
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13
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Keerthika Devi R, Ganesan M, Chen TW, Chen SM, Akilarasan M, Shaju A, Rwei SP, Yu J, Yu YY. In-situ formation of niobium oxide – niobium carbide – reduced graphene oxide ternary nanocomposite as an electrochemical sensor for sensitive detection of anticancer drug methotrexate. J Colloid Interface Sci 2023; 643:600-612. [PMID: 37003869 DOI: 10.1016/j.jcis.2023.03.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/17/2023] [Accepted: 03/22/2023] [Indexed: 03/28/2023]
Abstract
Engineering the nanostructure of an electrocatalyst is crucial in developing a high-performance electrochemical sensor. This work exhibits the hydrothermal followed by annealing synthesis of niobium oxide/niobium carbide/reduced graphene oxide (NbO/NbC/rGO) ternary nanocomposite. The oval-shaped NbO/NbC nanoparticles cover the surface of rGO evenly, and the rGO nanosheets are interlinked to produce a micro-flower-like architecture. The NbO/NbC/rGO nanocomposite-modified electrode is presented here for the first time for the rapid and sensitive electrochemical detection of the anticancer drug methotrexate (MTX). Down-sized NbO/NbC nanoparticles and rGO's high surface area provide many active sites with a rapid electron transfer rate, making them ideal for MTX detection. In comparison to previously reported MTX sensors, the developed drug sensor exhibits a lower oxidation potential and a higher peak current responsiveness. The constructed sensors worked analytically well under optimal conditions, as shown by a low detection limit of 1.6 nM, a broad linear range of 0.1-850 µM, and significant recovery findings (∼98 %, (n = 3)) in real samples analysis. Thus, NbO/NbC/rGO nanocomposite material for high-performance electrochemical applications seems promising.
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Affiliation(s)
- Ramadhass Keerthika Devi
- Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Muthusankar Ganesan
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom.
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan.
| | - Muthumariappan Akilarasan
- Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Anlin Shaju
- International College of Semiconductor Technology (ICST), National Yang Ming Chiao Tung University, Taiwan
| | - Syang-Peng Rwei
- Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei 106, Taiwan; Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taiwan
| | - Jaysan Yu
- Well Fore Special Wire Corporation, 10, Tzu-Chiang 7rd., Chung-Li Industrial Park, Taoyuan, Taiwan
| | - Yen-Yao Yu
- Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
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14
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Priya TS, Chen TW, Chen SM, Kokulnathan T, Lou BS, Al-Onazi WA, Al-Mohaimeed AM, Elshikh MS, Yu J. Synthesis of perovskite-type potassium niobate using deep eutectic solvents: A promising electrode material for detection of bisphenol A. Chemosphere 2023; 318:137948. [PMID: 36716937 DOI: 10.1016/j.chemosphere.2023.137948] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 01/15/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
This study demonstrates a hydrothermal method to prepare perovskite-type potassium niobate (KNbO3) through deep eutectic solvent (DES), which is further used as an electrode material for the determination of bisphenol A (BPA). The as-synthesized KNbO3 was systematically characterized by different microscopic and spectroscopic techniques. The KNbO3-modified electrode demonstrates excellent electrocatalytic activity for BPA compared to the pristine electrode. The enhanced performance of the proposed sensor is attributed to the numerous active sites, large electrochemical surface area, high electrical conductivity, and rapid electron transfer. The fabricated sensor shows a wide detection range (0.01-84.3 μM), a low limit of detection (0.003 μM), a high sensitivity (0.51 μA μM-1 cm-2), and good anti-interference abilities towards the BPA detection by linear sweep voltammetry method. Besides, it was successfully applied to determining BPA in food samples, demonstrating good practicability. This design paves a new way to fabricate efficient electrode material for various electrochemical applications using a DES medium.
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Affiliation(s)
- Thangavelu Sakthi Priya
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan.
| | - Thangavelu Kokulnathan
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Bih-Show Lou
- Chemistry Division, Center for General Education, Chang Gung University, Taoyuan 333, Taiwan; Department of Orthopaedic Surgery, New Taipei Municipal TuCheng Hospital, Chang Gung Memorial Hospital, New Taipei City, 236, Taiwan.
| | - Wedad A Al-Onazi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Amal M Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Jaysan Yu
- Well Fore Special Wire Corporation, 10, Tzu-Chiang 7th., Chung-Li Industrial Park, Taoyuan, Taiwan
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15
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Farooq M, Ul Ain I, Aysha Iftikhar Z, Ubaid M, Asim M, Mushtaq U, Musaed Almutairi S, Ahmed Rasheed R, Chen TW. Investigating the therapeutic potential of aqueous extraction of curry plant (Murraya koenigi) leaves supplementation for the regulation of blood glucose level in type 2 diabetes mellitus in female human subjects. Pak J Pharm Sci 2023; 36:601-605. [PMID: 37548196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Type 2 diabetes mellitus is characterized by hyperglycemia and insulin resistance. It is spreading around the globe like a pandemic. Major factors behind the development of diabetes can be genetics, environmental factors, dietary choices and obesity. Many medicinal plants have anti-diabetic potential. This study has investigated the anti-diabetic effect of curry leaves extract. This study also investigated the chemical characterization of curry leaves. Phytochemicals including saponins, tannins, alkaloids, flavonoids, phenols and glycosides were also investigated. Encapsulated 5mg per kg of the body weight and 10mg per kg of the body weight were given to treatment groups I and II. Random blood sugar, fasting blood sugar and HbA1c of 45 diabetic female adults were measured on the 0-day and 45th days. All results were analyzed using the two-sample t-test in IBM SPSS Statistics 20. Curry leaves contained moisture (24.1±1.78)%, ash (17.82±2.13)%, nitrogen free extract (36.12±3.52)%, crude protein (8.32±0.83)%, crude fiber (6.98±2.31)% and crude fat (6.87±0.21)%. Mineral analysis showed that magnesium and calcium were major minerals present in curry leaves. Curry leaves extract contained saponins 2.71±0.23, flavonoids 7.84±0.42, tannins 0.91±0.09, glycosides 0.17±0.01, phenols 3.89±0.12, alkaloids 2.01±0.87. These phytochemicals were expressed in mg/100 g of the sample. Curry leaf extract showed a significant (p<0.05) reduction in fasting blood sugar, random blood sugar and glycated hemoglobin in both treatment groups.
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Affiliation(s)
| | | | | | - Muhammad Ubaid
- Department of Medicine, Dow University of Health Sciences and Civil Hospital, Karachi, Pakistan
| | - Maleha Asim
- Department of Biochemistry, Riphah International University, Islamabad, Pakistan
| | - Usman Mushtaq
- Govt. Jinnah Islamia Graduate College, Sialkot, Pakistan
| | - Saeedah Musaed Almutairi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Rabab Ahmed Rasheed
- Histology & Cell Biology Department, Faculty of Medicine, King Salman International University, South Sinai, Egypt
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
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16
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Keerthika Devi R, Ganesan M, Chen TW, Chen SM, Ahmed Rasheed R, Al-onazi WA, Elshikh MS, Liu X, Yu J. Hexagonal nanosheets of pyrrochlore-type lanthanum stannate for sensitive detection of chlorinated pesticide in food and environmental samples. Food Chem 2023; 404:134516. [DOI: 10.1016/j.foodchem.2022.134516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/28/2022] [Accepted: 10/02/2022] [Indexed: 11/22/2022]
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17
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Anupriya J, Karuppusamy N, Chen TW, Chen SM, Balamurugan K, Akilarasan M, Liu X, Yu J. Enhancing catalytic activity through the construction of praseodymium tungstate decorated on hierarchical three-dimensional porous biocarbon for determination of furazolidone in aquatic samples. Chemosphere 2023; 313:137553. [PMID: 36521748 DOI: 10.1016/j.chemosphere.2022.137553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 11/27/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Boosting catalytic performance as a vital role for an electrochemical sensor for monitoring various hazardous nitro drugs. Herein, an inexpensive, facile, and eco-friendly construction of praseodymium tungstate decorated on three dimensional porous biocarbon (PrW/3D-PBC) for electrochemical determination of carcinogenic residue furazolidone (FZ). The nanostructured PrW nanoparticles were prepared by solvent evaporation from peroxo-tungstic acid and 3D-PBC was prepared from biomass precursor under the carbonization method. Furthermore, the composite of PrW decorated on 3D-PBC was prepared by an ultrasonic-assisted wet chemical approach. Besides, the composite characterization of crystalline, functional group, degree of carbonization, chemical states, and morphology were utilized by theXRD, FTIR, RAMAN, XPS, and FESEM analysis. These 3D porous carbon decorated PrW nanoparticles facilitate the electrochemical anchoring sites, surface area, and ease of diffusion layers towards the detection of hazardous nitro pollutant FZ by using CV analysis. The low LOD and high sensitivity were achieved by FZ determination through using LSV and DPV techniques. The practical capability of the PrW/3D-PBC/GCE sensor was determined by using aquatic samples to achieve a good recovery result. These results instigate that the PrW/3D-PBC will be an efficient electrocatalytic material for FZ sensor in environmental aquatic samples.
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Affiliation(s)
- Jeyaraman Anupriya
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 106, Taiwan
| | - Naveen Karuppusamy
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 106, Taiwan
| | - Tse-Wei Chen
- Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei, 106, Taiwan; Well Fore Special Wire Corporation, 10, Tzu-Chiang 7th., Chung-Li Industrial Park, Taoyuan, Taiwan; Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 106, Taiwan.
| | - Karuppaiah Balamurugan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 106, Taiwan
| | - Muthumariappan Akilarasan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 106, Taiwan
| | - Xiaoheng Liu
- Key Laboratory of Education Ministry for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing, 210094, China.
| | - Jaysan Yu
- Well Fore Special Wire Corporation, 10, Tzu-Chiang 7th., Chung-Li Industrial Park, Taoyuan, Taiwan
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18
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Sakthi Priya T, Chen TW, Chen SM, Kokulnathan T, Akilarasan M, Rwei SP, Yu J. Hierarchical 3D Snowflake-like Iron Diselenide: A Robust Electrocatalyst for Furaltadone Detection. Inorg Chem 2023; 62:1437-1446. [PMID: 36652943 DOI: 10.1021/acs.inorgchem.2c03512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An electrocatalyst with a large active site is critical for the development of a high-performance electrochemical sensor. This work demonstrates the fabrication of an iron diselenide (FeSe2)-modified screen-printed carbon electrode (SPCE) for the electrochemical determination of furaltadone (FLD). It has been prepared by the facile method and systematically characterized with various microscopic/spectroscopic approaches. Due to advantageous physiochemical properties, the FeSe2/SPCE showed a low charge-transfer resistance value of 200 Ω in 5.0 mM [Fe(CN)6]3-/4- containing 0.1 M KCl. More importantly, the FeSe2/SPCE exhibited superior catalytic performance compared to the bare SPCE for FLD sensing based on the electrochemical response in terms of a peak potential of -0.44 V (vs Ag/AgCl (sat. KCl)) and cathodic response current of -22.8 μA. Operating at optimal conditions, the FeSe2-modified electrode showed wide linearity from 0.01 to 252.2 μM with a limit of detection of 0.002 μM and sensitivity of 1.15 μA μM-1 cm-2. The analytical performance of the FeSe2-based platform is significantly higher than many previously reported FLD electrochemical sensors. Furthermore, the FeSe2/SPCE also has a promising platform for FLD detection with high sensitivity, good selectivity, excellent stability, and robust reproducibility. Thus, the finding above shows that the FeSe2/SPCE is a highly suitable candidate for the electrochemical determination of glucose levels for real-time applications such as in human urine and river water samples.
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Affiliation(s)
- Thangavelu Sakthi Priya
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan.,Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei 106, Taiwan.,Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Thangavelu Kokulnathan
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 106, Taiwan
| | - Muthumariappan Akilarasan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Syang-Peng Rwei
- Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei 106, Taiwan.,Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 106, Taiwan
| | - Jaysan Yu
- Well Fore Special Wire Corporation, 10, Tzu-Chiang 7 Rd., Chung-Li Industrial Park, Taoyuan 320, Taiwan
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Hadibarata T, Kristanti RA, Bilal M, Al-Mohaimeed AM, Chen TW, Lam MK. Microbial degradation and transformation of benzo[a]pyrene by using a white-rot fungus Pleurotus eryngii F032. Chemosphere 2022; 307:136014. [PMID: 35970216 DOI: 10.1016/j.chemosphere.2022.136014] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/29/2022] [Accepted: 08/07/2022] [Indexed: 06/15/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are environmentally recalcitrant contaminants formed from naturally or incomplete combustion of organic materials and some of them are difficult to degrade due to their hydrophobicity and persistency. Benzo [a]pyrene (BaP), is one of PAHs that having five fused benzene and reported as mutagenic, carcinogenic and teratogenic compounds. Biodegradation is one of promising techniques due to its relatively low economic cost and microorganism is a natural capacity to consume hydrocarbons. In this investigation, Pleurotus eryngii F032 was grown in 20 mL of modified mineral salt broth (MSB) supplemented with BaP under static and agitated culture. Within 20 days, static culture removed 59% of BaP, whereas agitated culture removed the highest amount (73%). To expedite BaP elimination, the mechanism and behavior of BaP biosorption and biotransformation by Pleurotus eryngii F032 were additionally examined by gas chromatography-mass spectrometer (GC-MS). The optimal conditions for P. eryngii F032 to eliminate BaP were 25 °C, a C/N ratio of 8, pH 3 and 0.2% inoculum concentration. At an initial BaP content of 10 mg/L, more than 50% was effectively eliminated within 20 days under these conditions. Salinity, glucose, and rhamnolipids were the most important factors impacting BaP biodegradation. GC-MS found degradation products such as BaP-3,6-quinone, indicating plausible metabolic routes. Finally, it may be assumed that the primary mechanism by which white-rot fungi eliminate BaP is by the utilization of biotransformation enzymes such as laccase to mineralize the PAHs. Hence, Pleurotus eryngii F032 could be an ideal candidate to treat PAHs contaminated soils.
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Affiliation(s)
- Tony Hadibarata
- Environmental Engineering Program, Faculty of Engineering and Science, Curtin University, CDT 250, Miri, Sarawak, 98009, Malaysia.
| | - Risky Ayu Kristanti
- Research Centre for Oceanography, National Research and Innovation Agency of Indonesia, Jalan Pasir Putih 1, Jakarta, 14430, Indonesia
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Amal M Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Man Kee Lam
- Chemical Engineering Department, HICoE-Centre for Biofuels and Biochemical Research (CBBR), Institute of Self-Sustainable Building (ISB), Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
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20
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Sakthi Priya T, Nataraj N, Chen TW, Chen SM, Kokulnathan T. Synergistic formation of samarium oxide/graphene nanocomposite: A functional electrocatalyst for carbendazim detection. Chemosphere 2022; 307:135711. [PMID: 35843428 DOI: 10.1016/j.chemosphere.2022.135711] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/28/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
Herein, an electrochemical sensor based on samarium oxide anchored, reduced graphene oxide (Sm2O3/RGO) nanocomposite was developed for the rapid detection of carbendazim (CBZ). Different characterization methods were infused to deeply examine the morphology, composition, and elemental state of Sm2O3/RGO nanocomposite. The Sm2O3/RGO modified electrode exhibits an excellent electro-catalytic performance toward CBZ detection with a peak potential of +1.04 V in phosphate buffer solution (pH 3.0), which is superior to the RGO-, Sm2O3- and bare- electrodes. This remarkable activity can be credited to the synergetic effect generated by the robust interaction between Sm2O3 and RGO, resulting in a well-enhanced electrochemical sensing ability. Impressively, the fabricated sensor shows improved electrochemical performance in terms of the wide working range, detection limit, and strong sensitivity. On a peculiar note, the electrochemical sensing performances of CBZ detection based on Sm2O3/RGO nanocomposite demonstrate an extraordinary behavior compared to the prior documented electro-catalyst. In addition, the fabricated Sm2O3/RGO sensor also displays good operational stability, reproducibility, and repeatability towards the detection of CBZ. Furthermore, it was successfully applied to the CBZ detection in food and environmental water samples with satisfactory recovery. In accordance with our research findings, the Sm2O3/RGO nanocomposite could be used as an electro-active material for effectual electrochemical sensing of food and environmental pollutants.
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Affiliation(s)
- Thangavelu Sakthi Priya
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 106, Taiwan
| | - Nandini Nataraj
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 106, Taiwan
| | - Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 106, Taiwan; Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei, 106, Taiwan; Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 106, Taiwan.
| | - Thangavelu Kokulnathan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 106, Taiwan; Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, 106, Taiwan
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Selvaraj V, Mahboub HH, Ganapathi U, Chandran SK, Al-Onazi W, Al-Mohaimeed AM, Chen TW, Faggio C, Paulraj B. Enhanced photodegradation of methylene blue from aqueous solution using Al-doped ZnS nanoparticles. Environ Sci Pollut Res Int 2022; 29:73528-73541. [PMID: 35622286 DOI: 10.1007/s11356-022-20634-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/01/2022] [Indexed: 06/15/2023]
Abstract
The post-transition semiconducting material of pure zinc sulfide (ZnS) and various concentrations of aluminum (Al) (2.5 wt%, 5.0% wt, 7.5 wt%, and 10% calcined at 200 °C) doped ZnS nanoparticles (NPs) were synthesized by sol-gel procedure. The crystal-like nature and phase structure of the product were examined by powder XRD analysis. This analysis shows that the pure ZnS nanoparticle does not form any secondary phase. The functional group of synthesized materials was analyzed by FTIR examination. The energy gap of the materials is calculated using electro-optic analysis and the Kubelka-Munk equation varies from 3.04 nm to 3.63 nm. The photoluminescence studies show the wide emissions (blue to green) for pure ZnS and Al-doped ZnS nanomaterials. The SEM images show the spherical structure and the agglomerated nanostructures. The presence of Zn, S, and Al are confirmed by EDAX spectra. From HR-TEM studies, pure ZnS and Al-doped ZnS nanoparticles exhibit uniform particle sizes. The rate of degradation was observed using MB dye. MB dye has maximum wavelength (λmax) of 664 nm. The dye degradation efficiency was improved as the dye ratio increased. Photocatalytic activities studies show the intensity of photocatalytic activities decreased for the maximum time interval. Doping of Al in ZnS boosts the photocatalytic activity. Hence, Al-doped ZnS appears to be better decomposing MB dye when exposed to visible light.
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Affiliation(s)
- Vijayan Selvaraj
- Department of Physics, Govt. Arts College, Coimbatore, Tamilnadu, India
- Department of Physics, MGR College, Hosur, Tamilnadu, India
| | - Heba H Mahboub
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Zagazig University, P.O. Box 44511, Zagazig, Sharkia, Egypt
| | - Umadevi Ganapathi
- Department of Physics, Govt. Arts College, Coimbatore, Tamilnadu, India.
| | | | - Wedad Al-Onazi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Amal Mohammed Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, UK
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Balaji Paulraj
- PG and Research Centre in Biotechnology, MGR College, Hosur, Tamilnadu, India
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22
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Keerthika Devi R, Ganesan M, Chen TW, Chen SM, Lou BS, Ajmal Ali M, Al-Hemaid FM, Li RH. Gadolinium vanadate nanosheets entrapped with 1D-halloysite nanotubes-based nanocomposite for the determination of prostate anticancer drug nilutamide. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ramachandran R, Chen TW, Veerakumar P, Anushya G, Chen SM, Kannan R, Mariyappan V, Chitra S, Ponmurugaraj N, Boominathan M. Recent development and challenges in fuel cells and water electrolyzer reactions: an overview. RSC Adv 2022; 12:28227-28244. [PMID: 36320254 PMCID: PMC9531000 DOI: 10.1039/d2ra04853a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/01/2022] [Indexed: 11/07/2022] Open
Abstract
Water electrolysis is the most promising method for the production of large scalable hydrogen (H2), which can fulfill the global energy demand of modern society. H2-based fuel cell transportation has been operating with zero greenhouse emission to improve both indoor and outdoor air quality, in addition to the development of economically viable sustainable green energy for widespread electrochemical applications. Many countries have been eagerly focusing on the development of renewable as well as H2-based energy storage infrastructure to fulfill their growing energy demands and sustainable goals. This review article mainly discusses the development of different kinds of fuel cell electrocatalysts, and their application in H2 production through various processes (chemical, refining, and electrochemical). The fuel cell parameters such as redox properties, cost-effectiveness, ecofriendlyness, conductivity, and better electrode stability have also been highlighted. In particular, a detailed discussion has been carried out with sufficient insights into the sustainable development of future green energy economy.
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Affiliation(s)
- Rasu Ramachandran
- Department of Chemistry, The Madura College (Madurai Kamaraj University) Vidhya Nagar, T.P.K. Road Madurai 625011 India
| | - Tse-Wei Chen
- Department of Materials, Imperial College London London SW7 2AZ UK
| | | | - Ganesan Anushya
- Department of Physics, St. Joseph College of Engineering Sriperumbudur Chennai 602117 India
| | - Shen-Ming Chen
- Electroanalysis and Bio-electrochemistry Laboratory, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology Taipei 106 Taiwan
| | - Ramanjam Kannan
- Department of Chemistry, Sri KumaraguruparaSwamigal Arts College Srivaikuntam Thoothukudi-628619 India
| | - Vinitha Mariyappan
- Electroanalysis and Bio-electrochemistry Laboratory, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology Taipei 106 Taiwan
| | - Selvam Chitra
- Department of Chemistry, Alagappa Government Arts College Karaikudi 630003 India
| | | | - Muthusamy Boominathan
- Department of Chemistry, The Madura College (Madurai Kamaraj University) Vidhya Nagar, T.P.K. Road Madurai 625011 India
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Nataraj N, Chen TW, Akilarasan M, Chen SM, Al-Ghamdi AA, Elshikh MS. Se substituted 2D-gC 3N 4 modified disposable screen-printed carbon electrode substrate: A bifunctional nano-catalyst for electrochemical and absorption study of hazardous fungicide. Chemosphere 2022; 302:134765. [PMID: 35500632 DOI: 10.1016/j.chemosphere.2022.134765] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/09/2022] [Accepted: 04/25/2022] [Indexed: 06/14/2023]
Abstract
The indispensable usage of pesticides for the control and prevention of pests is probable and includes several types based on the problems in the crops. Among them, fungicides, are one problem-solving agent curing fungal developments. the disproportionate use of fungicides will lead to environmental deterioration and several health issues. The assessment of such fungicides is highly motivated to be detected. Under the class of two-dimensional materials, graphitic carbon nitride (GCN) with high surface area and high electrocatalytic activity was chosen as electrode material. The efficiency of GCN was improved with the subsequent substitution of selenium (Se) into the triazine ring as Se-GCN. The structural and surface analysis was done and the layered structure was proved. The electrochemical detection of CBM showed a lower detection limit at 6 nM with a linear range 0.099 μM-346.9 μM while, the absorption studies showed a LOD of 20 nM with a linear range of 0.099 μM-182.09 μM. The orange juice and vegetable extract samples had good recovery with CBM at Se-GCN modified disposable screen-printed electrode. The developed disposable electrode was more sensitive with 6.45 μAμM-1cm2 sensitivity and highly reactive with CBM. Moreover, the developed sensor will be more effective in sensing applications to avoid the menace generated by several agents.
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Affiliation(s)
- Nandini Nataraj
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, ROC
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Muthumariappan Akilarasan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, ROC
| | - Shen Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, ROC.
| | - Abdullah Ahmed Al-Ghamdi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
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25
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Kaleeswarran P, Sakthi Priya T, Chen TW, Chen SM, Kokulnathan T, Arumugam A. Construction of a Copper Bismuthate/Graphene Nanocomposite for Electrochemical Detection of Catechol. Langmuir 2022; 38:10162-10172. [PMID: 35939572 DOI: 10.1021/acs.langmuir.2c01151] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Binary metal oxides with carbon nanocomposites have received extensive attention as research hotspots in the electrochemistry field owing to their tunable properties and superior stability. This work illustrates the development of a facile sonochemical strategy for the synthesis of a copper bismuthate/graphene (GR) nanocomposite-modified screen-printed carbon electrode (CBO/GR/SPCE) for the electrochemical detection of catechol (CT). The formation of an as-prepared CBO/GR nanocomposite was comprehensively characterized. The electrochemical behavior of the CBO/GR/SPCE toward CT was investigated by voltammetry and amperometry techniques. The fabricated CBO/GR/SPCE manifests an excellent electrocatalytic performance toward CT with a lower peak potential and a higher current value compared to those of CBO/SPCE, GR/SPCE, and bare SPCE. It is attributed to enhanced electro-catalytic activity, synergetic effects, and good active sites of the CBO/GR nanocomposite. Under the electrochemical condition, the CBO/GR/SPCE displayed a wide linear sensing range, trace-level detection limit, acceptable sensitivity, and excellent selectivity. Furthermore, our proposed CBO/GR electrode was employed successfully for CT detection in water samples.
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Affiliation(s)
- Periyannan Kaleeswarran
- Department of Nanoscience and Technology, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
- Department of Botany, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Thangavelu Sakthi Priya
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
- Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei 106, Taiwan
- Department of Materials, Imperial College London, London SW7 2AZ, U.K
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Thangavelu Kokulnathan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Ayyakannu Arumugam
- Department of Botany, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
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Pulikkutty S, Manjula N, Chen TW, Chen SM, Lou BS, Siddiqui MR, Wabaidur SM, Ali MA. Fabrication of gadolinium zinc oxide anchored with functionalized-SWCNT planted on glassy carbon electrode: Potential detection of psychotropic drug (phenothiazine) in biotic sample. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Ganesamurthi J, Shanmugam R, Chen TW, Chen SM, Balamurugan M, Gan ZW, Siddiqui MR, Wabaidur SM, Ali MA. NiO/ZnO binary metal oxide based electrochemical sensor for the evaluation of hazardous flavonoid in biological and vegetable samples. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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28
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Chen JY, Chen TW, Lu WD. The performance of five models compared with atrial high rate episodes predicts new atrial fibrillation after cardiac implantable electronic devices implantation. Ann Noninvasive Electrocardiol 2022; 27:e12978. [PMID: 35665984 PMCID: PMC9484023 DOI: 10.1111/anec.12978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/10/2022] [Accepted: 05/16/2022] [Indexed: 11/27/2022] Open
Abstract
Aims Several predicting models have been evaluated for new‐onset atrial fibrillation (AF) in several clinical conditions, but never in patients with cardiac implantable electronic devices (CIED). We aimed to evaluate the five predicting models compared with atrial high rate episodes (AHRE) to predict new AF in patients with CIED. Methods and Results We retrospective enrolled 470 consecutive patients with CIED and without a history of AF. The five predicting models, including CHA2DS2‐VASc score, C2HEST score, mCHEST score, HAT2CH2 score, and HAVOC score were used. The primary endpoint was new AF documented by 12‐lead electrocardiography (ECG) or 30‐s ECG strip. Multivariable Cox regression analysis was used to determine variables associated with independent factors of new AF. Patients' median age was 76 years and 58.7% were male. During follow‐up (median 29 months), 34 new AF occurred (incidence rate 2.99/100 patient‐years, 95% CI 1.67–6.20). Multivariable Cox regression analysis showed AHRE ≥6 min and 24 h, and HAT2CH2 score were independent predictors for new AF. Optimal AHRE cutoff value was 9.3 min with highest Youden index (AUC, 0.806; 95% CI, 0.722–0.889; p < .001). The AF occurrence rate of AHRE ≥9.3 min was 7 times AHRE <9.3 min (p < .001). Conclusions We compared 5 predicting models for new AF in patients with CIED and without a history of AF. AHRE ≥6 min and 24 h, and HAT2CH2 score were independent predictors for AF.
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Affiliation(s)
- Ju-Yi Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tse-Wei Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Da Lu
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Natesan M, Subramaniyan P, Chen TW, Chen SM, Ajmal Ali M, Al-Zaqri N. Ceria-doped zinc oxide nanorods assembled into microflower architectures as electrocatalysts for sensing of piroxicam in urine sample. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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30
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Darwish NM, Elshaer MMA, Almutairi SM, Chen TW, Mohamed MO, Ghaly WBA, Rasheed RA. Omega-3 Polyunsaturated Fatty Acids Provoke Apoptosis in Hepatocellular Carcinoma through Knocking Down the STAT3 Activated Signaling Pathway: In Vivo and In Vitro Study. Molecules 2022; 27:molecules27093032. [PMID: 35566382 PMCID: PMC9103886 DOI: 10.3390/molecules27093032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 11/28/2022]
Abstract
Hepatocellular carcinoma (HCC) is a common type of liver cancer and is a leading cause of death worldwide. Signal transducer and activator of transcription 3 (STAT3) is involved in HCC progression, migration, and suppression of apoptosis. This study investigates the apoptotic effect of the dietary antioxidant (n-3 PUFAs) on HepG2 cells and analyzes the underlying molecular mechanisms of this effect both in vivo and in vitro. In vivo study: Seventy-five adult male albino rats were divided into three groups (n = 25): Group I (control): 0.9% normal saline, intraperitoneal. Group II: N-Nitrosodiethylamine (200 mg/kg b.wt) intraperitoneal, followed by phenobarbital 0.05% in drinking water. Group III: as group II followed by n-3 PUFAs intubation (400 mg/kg/day). In vivo study: liver specimens for biochemical, histopathological, and immunohistochemical examination. In vitro study: MTT assay, cell morphology, PCR, Western blot, and immunohistochemical analysis. n-3 PUFAs significantly improved the histopathologic features of HCC and decreased the expression of anti-apoptotic proteins. Further, HepG2 cells proliferation was suppressed through inhibition of the STAT3 signaling pathway, cyclin D1, and Bcl-2 activity. Here we report that n-3 PUFAs may be an ideal cancer chemo-preventive candidate by targeting STAT3 signaling, which is involved in cell proliferation and apoptosis.
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Affiliation(s)
- Noura M. Darwish
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
- Ministry of Health Laboratories, Tanta 16335, Egypt
- Correspondence: (N.M.D.); (R.A.R.); Tel.: +20-1096264335 (N.M.D.); +20-1001022257 (R.A.R.)
| | - Mohamed M. A. Elshaer
- Department of Clinical Pharmacology, Faculty of Medicine, Ain Shams University, Cairo 11566, Egypt;
- Department of Clinical Pharmacology, Faculty of Medicine, King Salman International University, South Sinai 46511, Egypt
| | - Saeedah Musaed Almutairi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London SW7 2AZ, UK;
| | - Mohamed Othman Mohamed
- Anatomy Department, Faculty of Medicine, King Salman International University, South Sinai 46511, Egypt;
| | - Wael B. A. Ghaly
- Physiology Department, Faculty of Medicine, Fayoum University, Fayoum 63511, Egypt;
- Physiology Department, Faculty of Medicine, King Salman International University, South Sinai 46511, Egypt
| | - Rabab Ahmed Rasheed
- Histology & Cell Biology Department, Faculty of Medicine, King Salman International University, South Sinai 46511, Egypt
- Correspondence: (N.M.D.); (R.A.R.); Tel.: +20-1096264335 (N.M.D.); +20-1001022257 (R.A.R.)
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Bindhu MR, Willington TD, Hatshan MR, Chen SM, Chen TW. Environmental photochemistry with Sn/F simultaneously doped TiO 2 nanoparticles: UV and visible light induced degradation of thiazine dye. Environ Res 2022; 207:112108. [PMID: 34571028 DOI: 10.1016/j.envres.2021.112108] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 09/08/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
Environmental route such as degradation of toxic dyes can be improved through photochemical activity such as light driven photocatalytic degradation. Herein, fluorine and tin simultaneously doped TiO2 nanoparticles were synthesized and characterized. The formation of anatase phase in synthesized samples and the reduction in the crystallite size of doped TiO2 was confirmed from XRD results. The existence of O-Ti-O stretching vibration in pure and co-doped TiO2 confirmed from FTIR results. Optical studies reveal that the band gap of co-doped TiO2 is increased and hence it was concluded that the particle size of co-doped TiO2 is reduced compared with as-synthesized TiO2. The morphologies of TiO2 changed significantly with doping of fluorine and tin. It reveals majority of the particles are hexagons, pentagons and ellipse shaped and some of them are spheres with a mean particle size of 31.17 nm. PL studies showed the reduction in intensity for Sn-F/TiO2 accredited to the lesser recombination rate of electron-hole pair under UV light irradiation. Thus tin and fluorine doped TiO2 could be considered as a good candidate for photocatalytic activity. The photocatalytic activity of TiO2 and Sn-F/TiO2 nanoparticles was analyzed separately through the degradation of methylene blue (MB) under visible and UV light irradiation. The use of Sn and F ions in the synthesis of TiO2 are revealed not only create small sized nanoparticles but these water soluble nanoparticles have very good antibacterial and antifungal action by inhibiting the growth of bacteria and fungus.
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Affiliation(s)
- M R Bindhu
- Department of Physics, Sree Devi Kumari Women's College, Kuzhithurai, 629163, Tamilnadu, India.
| | - T David Willington
- Department of Physics and Research Centre, Nesamony Memorial Christian College, Marthandam, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamil Nadu, India
| | - Mohammad Rafe Hatshan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East 8 Road, Taipei, 106, Taiwan, ROC
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
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Panimalar S, Subash M, Chandrasekar M, Uthrakumar R, Inmozhi C, Al-Onazi WA, Al-Mohaimeed AM, Chen TW, Kennedy J, Maaza M, Kaviyarasu K. Reproducibility and long-term stability of Sn doped MnO 2 nanostructures: Practical photocatalytic systems and wastewater treatment applications. Chemosphere 2022; 293:133646. [PMID: 35063549 DOI: 10.1016/j.chemosphere.2022.133646] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/03/2022] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Sn-doped MnO2 were synthesized as an oxidant, a mediator of maleic acid (C4H4O4) and SnCl2 as doping ingredient via a basic sol-gel reaction with KMnO4. XRD study signposts that tetragonal crystal structure of MnO2 (ICDD#44-0141) with a plane group of 12/m (87) for both pure and Sn doped MnO2 nanostructures. The photocatalyst synthesized has mesoporosity, allowing to the N2 adsorption/desorption experiments. The geometry of the materials varies from spherical shape in pristine MnO2 to a rod-like shape in Sn-MnO2, as observed in the SEM and TEM pictures. To examine optic properties and energy bandgaps topologies, UV-visible diffuse reflectance spectroscopy was applied. In visible spectrum, overall catalytic performance of Sn-doped MnO2 was tested using methyl orange and phenol as dyes. The results suggest that the optimized Sn doped MnO2 (10 wt.%) catalyst showed higher degradation efficiency (98.5%), apparent constant (0.7841 min-1) and long term permanence. For this improved charge extraction efficiency, a potential photocatalytic mechanism was proposed.
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Affiliation(s)
- S Panimalar
- Department of Physics, Periyar University, Salem, 636011, Tamil Nadu, India
| | - M Subash
- Department of Physics, Govt. Arts College (Autonomous), Salem, 636007, Tamil Nadu, India
| | - M Chandrasekar
- Department of Physics, Periyar University, Salem, 636011, Tamil Nadu, India
| | - R Uthrakumar
- Department of Physics, Govt. Arts College (Autonomous), Salem, 636007, Tamil Nadu, India
| | - C Inmozhi
- Department of Physics, Govt. Arts College for Women, Salem, 636008, Tamil Nadu, India.
| | - Wedad A Al-Onazi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Amal M Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - J Kennedy
- National Isotope Centre, GNS Science, PO Box 31312, Lower Hutt, 5010, New Zealand
| | - M Maaza
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, PO Box 392, Pretoria, South Africa; Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, PO Box 722, Somerset West, Western Cape Province, South Africa
| | - K Kaviyarasu
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, PO Box 392, Pretoria, South Africa; Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, PO Box 722, Somerset West, Western Cape Province, South Africa.
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33
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Sivakumar M, Muthukutty B, Chen TW, Chen SM, Vivekanandan AK, Chen SH, Hatshan MR, Ali MA, Kumar M. Electrocatalytic detection of noxious antioxidant diphenylamine in fruit samples with support of Cu@nanoporous carbon modified sensor. Chemosphere 2022; 292:133400. [PMID: 34974048 DOI: 10.1016/j.chemosphere.2021.133400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/13/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Herein, the facile synthesis of copper(II) and benzene-1,3,5-tricarboxylate (Cu-BTC) and copper nanoporous carbon (Cu@NPC) for the electrochemical detection of diphenylamine (DPA) was systematically investigated. The Cu-BTC and Cu@NPC materials structural, morphological, and thermal stability were evaluated and confirmed using FE-SEM, HR-TEM, XRD, FT-IR, and TGA. The electrocatalytic behavior of sensor materials was examined by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). It is presumed that the structural stability and synergic effect exhibited in Cu@NPC are favorable for enhanced sensitivity and selectivity towards the detection of DPA. The Cu@NPC exhibited a wide linear range (0.09-396.82 μM) and the lowest limit of detection (5 nM). Furthermore, the real sample analysis of the sensor for the detection of DPA in apples and pears confirms its potential capability in practical application.
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Affiliation(s)
- Mani Sivakumar
- Advanced Membrane Materials Research Center, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, No:43, Section 4, Keelung Road, Taipei, 106, Taiwan, Republic of China
| | - Balamurugan Muthukutty
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, Republic of China
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, Republic of China.
| | - Alangadu Kothandan Vivekanandan
- Nano Manufacturing and Surface Treatment Lab, Department of Mechanical Engineering, National Taiwan University of Science and Technology, No:43, Section 4, Keelung Road, Taipei, 106, Taiwan, Republic of China
| | - Shih-Hsun Chen
- Nano Manufacturing and Surface Treatment Lab, Department of Mechanical Engineering, National Taiwan University of Science and Technology, No:43, Section 4, Keelung Road, Taipei, 106, Taiwan, Republic of China
| | - Mohammad Rafe Hatshan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - M Ajmal Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohanraj Kumar
- Department of Environmental Engineering and Management, Chaoyang University and Technology, 168, Jifeng E. Rd., Wufeng District, Taichung, 41349, Taiwan
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Yamuna A, Chen TW, Chen SM. Synthesis and characterizations of iron antimony oxide nanoparticles and its applications in electrochemical detection of carbendazim in apple juice and paddy water samples. Food Chem 2022; 373:131569. [PMID: 34799130 DOI: 10.1016/j.foodchem.2021.131569] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 10/05/2021] [Accepted: 11/07/2021] [Indexed: 11/04/2022]
Abstract
This study reports a facile sonohydrolysis synthesis route to prepare the iron antimony oxide (FeSbO4) nanoparticles for the trace level electrochemical sensing of fungicide carbendazim (CRBZ). As prepared FeSbO4 nanoparticles show a nano-cubes-like morphology with uniform distributions that crystallized in the tetragonal phase. The diffraction studies reveal that the FeSbO4 nanoparticles have high crystallinity and high purity. Furthermore, the other structural properties and morphology are characterized by XRD, Raman, XPS, HRTEM, and FESEM analysis. The electrochemical characterizations of FeSbO4 modified GCE towards the detection of CRBZ are performed by cyclic voltammetry and chronoamperometry techniques. The FeSbO4/GCE exhibits a linear range from 0.01 µmol L-1 to 64.3 µmol L-1, the sensitivity of 0.68 µA cm-2 µM-1, and the LOD of 5.4 nmol L-1. Moreover, the FeSbO4/GCE delivered high selectivity among the possibly interfering compounds. Also, our projected FeSbO4/GCE electrode material shows good recoveries in apple juice and paddy water real samples.
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Affiliation(s)
- Annamalai Yamuna
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan; Research and Development Center for Smart Textile Technology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan; Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan.
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Devi RK, Ganesan M, Chen TW, Chen SM, Al-Hemaid FM, Ali MA, Al-Mohaimeed AM. Vanadium carbide and nitrogen-doped graphene nanosheets based layered architecture for electrochemical evaluation of clioquinol detection and energy storage application. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139930] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Manjula N, Pulikkutty S, Chen TW, Chen SM, Fan CH, Ali MA, Al-Hemaid FM. Electrochemical sensor based on cerium niobium oxide nanoparticles modified electrode for sensing of environmental toxicity in water samples. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bessy TC, Bindhu MR, Johnson J, Chen SM, Chen TW, Almaary KS. UV light assisted photocatalytic degradation of textile waste water by Mg 0.8-xZn xFe 2O 4 synthesized by combustion method and in-vitro antimicrobial activities. Environ Res 2022; 204:111917. [PMID: 34453899 DOI: 10.1016/j.envres.2021.111917] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 08/10/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
In this paper, Magnesium Zinc Ferrite (MZF) nanoparticles (Mg0.8-xZnxFe2O4, where x = 0.2, 0.4 and 0.6) are successfully fabricated by combustion process. The prepared nanoparticles are characterized through XRD, FTIR, UV, SEM, EDS and TEM. It has been confirmed that the samples produced cubic spinel structure with crystal size in the range of 13-15 nm. From the ultraviolet spectrum, the optical band gap is calculated which ranges from 5.6 to 4.6 eV. TEM micrographs confirm the nanocrystalline nature of combustion derived ferrite nanoparticles with average particle diameter of 7-28 nm. Antibacterial studies confirmed that the nanoparticles are toxic to Pseudomonas aeruginosa consists of greatest zone of inhibition of 25 mm. The antibacterial and photocatalytic studies exhibited improved activity which is strongly influenced by the zinc doping. Photocatalytic degradation study reveal that the prepared nanoparticles function as perfect catalyst for degradation of Methylene Blue (MB) dye and Textile Dyeing Waste Water (TDWW) under UV light, thus revealing their potential usage on organic pollutants.
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Affiliation(s)
- T C Bessy
- Reseach scholar (Reg. No: 18213102132001), Department of Physics, Annai Velankanni College, Tholayavattam, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, 627012, Tamilnadu, India
| | - M R Bindhu
- Department of Physics, Sree Devi Kumari Women's College, Kuzhithurai, 629163, Tamilnadu, India.
| | - J Johnson
- Department of Physics, Annai Velankanni College, Tholayavattam, 629167, Tamilnadu, India
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Khalid S Almaary
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
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Muthukutty B, Ganesamurthi J, Chen TW, Chen SM, Yu J, Liu X. A novel high-performance electrocatalytic determination platform for voltammetric sensing of eugenol in acidic media using pyrochlore structured lanthanum stannate nanoparticles. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.10.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Padmalaya G, Vardhan KH, Kumar PS, Ali MA, Chen TW. A disposable modified screen-printed electrode using egg white/ZnO rice structured composite as practical tool electrochemical sensor for formaldehyde detection and its comparative electrochemical study with Chitosan/ZnO nanocomposite. Chemosphere 2022; 288:132560. [PMID: 34653482 DOI: 10.1016/j.chemosphere.2021.132560] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/26/2021] [Accepted: 10/11/2021] [Indexed: 05/23/2023]
Abstract
In this study, Chitosan/ZnO nanocomposite (Ch/ZnO) and egg white/ZnO rice structured composite was synthesized by simple wet chemical technique and characterised by various techniques. A comparative electrochemical analysis were carried out and determined that egg white/ZnO rice structured composite modified screen printed electrode (SPCE) showed good electrochemical behaviour. The electrochemical activity of egg white/ZnO rice structured composite SPCE was investigated for the oxidation-reduction of formaldehyde in alkaline media using cyclic voltammetry (CV).Their unique electrocatalytic activity for the formaldehyde found to exhibit 254 mV cathodic current response towards low negative potentials. Based on these results, a novel screen printed sensor (Egg white albumin/ZnO rice structured composite) for the determination of formaldehyde was analysed using differential pulse voltammetry (DPV). The sensor response was linear from 0.001 mM to 0.005 mM with limit of detection (LOD) 6.2 nM and their sensitivity was found to be 770.68 mM/μA. The developed electrochemical formaldehyde sensor was successfully applied as working electrode in cyclic voltammetric determination of formaldehyde in urine samples. The sensor is selective, inexpensive, stable over several days and disposable as well as simple to manufacture and operate. The system described here can be easily be adapted to other substrates and used as practical tool for formaldehyde analysis.
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Affiliation(s)
- G Padmalaya
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India
| | - Kilaru Harsha Vardhan
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India.
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India.
| | - M Ajmal Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, SW7 2AZ, United Kingdom
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Chen TW, Kalimuthu P, Veerakumar P, Lin KC, Chen SM, Ramachandran R, Mariyappan V, Chitra S. Recent Developments in Carbon-Based Nanocomposites for Fuel Cell Applications: A Review. Molecules 2022; 27:molecules27030761. [PMID: 35164025 PMCID: PMC8915178 DOI: 10.3390/molecules27030761] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/15/2022] [Accepted: 01/19/2022] [Indexed: 11/16/2022] Open
Abstract
Carbon-based nanocomposites have developed as the most promising and emerging materials in nanoscience and technology during the last several years. They are microscopic materials that range in size from 1 to 100 nanometers. They may be distinguished from bulk materials by their size, shape, increased surface-to-volume ratio, and unique physical and chemical characteristics. Carbon nanocomposite matrixes are often created by combining more than two distinct solid phase types. The nanocomposites that were constructed exhibit unique properties, such as significantly enhanced toughness, mechanical strength, and thermal/electrochemical conductivity. As a result of these advantages, nanocomposites have been used in a variety of applications, including catalysts, electrochemical sensors, biosensors, and energy storage devices, among others. This study focuses on the usage of several forms of carbon nanomaterials, such as carbon aerogels, carbon nanofibers, graphene, carbon nanotubes, and fullerenes, in the development of hydrogen fuel cells. These fuel cells have been successfully employed in numerous commercial sectors in recent years, notably in the car industry, due to their cost-effectiveness, eco-friendliness, and long-cyclic durability. Further; we discuss the principles, reaction mechanisms, and cyclic stability of the fuel cells and also new strategies and future challenges related to the development of viable fuel cells.
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Affiliation(s)
- Tse-Wei Chen
- Department of Materials, Imperial College London, London SW7 2AZ, UK;
| | - Palraj Kalimuthu
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia;
| | - Pitchaimani Veerakumar
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan;
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
- Correspondence: (P.V.); (S.-M.C.); (R.R.)
| | - King-Chuen Lin
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan;
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Shen-Ming Chen
- Electroanalysis and Bio-electrochemistry Laboratory, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan;
- Correspondence: (P.V.); (S.-M.C.); (R.R.)
| | - Rasu Ramachandran
- Department of Chemistry, The Madura College, Vidhya Nagar, T.P.K. Road, Madurai 625011, India
- Correspondence: (P.V.); (S.-M.C.); (R.R.)
| | - Vinitha Mariyappan
- Electroanalysis and Bio-electrochemistry Laboratory, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan;
| | - Selvam Chitra
- Department of Chemistry, Alagappa Government Arts College, Karaikudi 630003, India;
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Chen JY, Chen TW, Lu WD. HAT 2CH 2 Score Predicts Systemic Thromboembolic Events in Elderly After Cardiac Electronic Device Implantation. Front Med (Lausanne) 2022; 8:786779. [PMID: 35004752 PMCID: PMC8739510 DOI: 10.3389/fmed.2021.786779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/10/2021] [Indexed: 11/13/2022] Open
Abstract
Background: The HAT2CH2 score has been evaluated for predicting new onset atrial fibrillation, but never for adverse systemic thromboembolic events (STE) in elderly. We aimed to evaluate the HAT2CH2 score and comparing to atrial high rate episodes (AHRE) ≥24 h for predicting STE in older patients with cardiac implantable electronic devices (CIED) implantation. Methods: We retrospective enrolled 219 consecutive patients ≥ 65 years of age undergoing CIED implantation. The primary endpoint was subsequent STE. For all patients in the cohort, the CHA2DS2-VASc, C2HEST, mC2HEST, HAVOC, HAT2CH2 scores and AHRE ≥ 24 h were determined. AHRE was defined as > 175 bpm lasting ≥ 30 s. Multivariate Cox regression analysis with time-dependent covariates was used to determine variables associated with independent risk of STE. Results: The median patient age was 77 years, and 61.2% of the cohort was male. During follow-up (median, 35 months), 16 STE occurred (incidence rate, 2.51/100 patient-years; 95% CI, 1.65–5.48). Multiple Cox regression analysis showed that the HAT2CH2 score (HR, 3.405; 95% CI, 2.272–5.104; p < 0.001) was an independent predictor for STE. The optimal HAT2CH2 score cutoff value was 3, with the highest Youden index (AUC, 0.907; 95% CI, 0.853–0.962; p < 0.001). The STE rate increased with increasing HAT2CH2 score (p < 0.001). Conclusions: This study is the first to show the prognostic value of the HAT2CH2 score for STE occurrence in older patients with CIEDs.
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Affiliation(s)
- Ju-Yi Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tse-Wei Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Da Lu
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Chen TW, Anushya G, Chen SM, Kalimuthu P, Mariyappan V, Gajendran P, Ramachandran R. Recent Advances in Nanoscale Based Electrocatalysts for Metal-Air Battery, Fuel Cell and Water-Splitting Applications: An Overview. Materials (Basel) 2022; 15:ma15020458. [PMID: 35057176 PMCID: PMC8778511 DOI: 10.3390/ma15020458] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/29/2021] [Accepted: 01/04/2022] [Indexed: 01/09/2023]
Abstract
Metal-air batteries and fuel cells are considered the most promising highly efficient energy storage systems because they possess long life cycles, high carbon monoxide (CO) tolerance, and low fuel crossover ability. The use of energy storage technology in the transport segment holds great promise for producing green and clean energy with lesser greenhouse gas (GHG) emissions. In recent years, nanoscale based electrocatalysts have shown remarkable electrocatalytic performance towards the construction of sustainable energy-related devices/applications, including fuel cells, metal-air battery and water-splitting processes. This review summarises the recent advancement in the development of nanoscale-based electrocatalysts and their energy-related electrocatalytic applications. Further, we focus on different synthetic approaches employed to fabricate the nanomaterial catalysts and also their size, shape and morphological related electrocatalytic performances. Following this, we discuss the catalytic reaction mechanism of the electrochemical energy generation process, which provides close insight to develop a more efficient catalyst. Moreover, we outline the future perspectives and challenges pertaining to the development of highly efficient nanoscale-based electrocatalysts for green energy storage technology.
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Affiliation(s)
- Tse-Wei Chen
- Department of Materials, Imperial College London, London SW7 2AZ, UK;
| | - Ganesan Anushya
- Department of Physics, S.A.V. Sahaya Thai Arts and Science (Women) College, Sahayam Nagar, Kumarapuram Road, Vadakkankulam, Tirunelveli 627116, India;
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Laboratory, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan;
- Correspondence: (S.-M.C.); (R.R.)
| | - Palraj Kalimuthu
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia;
| | - Vinitha Mariyappan
- Electroanalysis and Bioelectrochemistry Laboratory, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan;
| | - Pandi Gajendran
- Department of Chemistry, The Madura College, Vidya Nagar, Madurai 625011, India;
| | - Rasu Ramachandran
- Department of Chemistry, The Madura College, Vidya Nagar, Madurai 625011, India;
- Correspondence: (S.-M.C.); (R.R.)
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Chen JY, Chen TW, Lu WD. The HAT 2CH 2 score predicts neurologic events in patients with cardiac implantable electronic devices without atrial fibrillation. J Cardiol 2022; 79:740-746. [PMID: 35012824 DOI: 10.1016/j.jjcc.2021.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/15/2021] [Accepted: 12/23/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND The HAT2CH2 score has been evaluated for predicting new-onset atrial fibrillation (AF) in several clinical conditions but never for adverse neurologic events. We aimed to evaluate the HAT2CH2 score for predicting neurologic events in patients with cardiac implantable electronic devices (CIED). METHODS AND RESULTS We retrospectively reviewed 470 consecutive patients who had CIED without a history of AF. The primary endpoint was a neurologic event, i.e. ischemic stroke or transient ischemic attack. Multivariate Cox regression analysis with time-dependent covariates was used to determine variables associated with independent factors of neurologic events. Patients' median age was 76 years, and 58.7% were male. During follow-up (median 29 months), 21 neurologic events occurred (incidence rate 1.85/100 patient-years, 95% CI 1.03-3.83). Multivariable Cox regression analysis revealed that the HAT2CH2 score (HR 3.397, 95% CI 2.357-4.895, p < 0.001) was an independent predictor for neurologic events. Optimal HAT2CH2 score cut-off value was 3, with highest Youden index (AUC, 0.923; 95% CI, 0.886-0.959; p < 0.001). The rate of neurologic events increased significantly with increasing HAT2CH2 score (p < 0.001). CONCLUSIONS The HAT2CH2 score can predict the occurrence of neurologic events in patients with CIED with no history of AF. Further study of the utility of the HAT2CH2 score for the assessment of neurologic event risk and the selection of anti-thrombotic therapy in patients with CIED without prior AF is warranted.
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Affiliation(s)
- Ju-Yi Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - Tse-Wei Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Da Lu
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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George A, Magimai Antoni Raj D, Venci X, Dhayal Raj A, Albert Irudayaraj A, Josephine RL, John Sundaram S, Al-Mohaimeed AM, Al Farraj DA, Chen TW, Kaviyarasu K. Photocatalytic effect of CuO nanoparticles flower-like 3D nanostructures under visible light irradiation with the degradation of methylene blue (MB) dye for environmental application. Environ Res 2022; 203:111880. [PMID: 34400161 DOI: 10.1016/j.envres.2021.111880] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/03/2021] [Accepted: 08/08/2021] [Indexed: 06/13/2023]
Abstract
The present research work focuses on preparing 3D transition metal doped copper oxide nanostructures through sonication method and to investigate the effect of doping different transition metal into copper oxide (CuO) on the basic properties of CuO nanoparticles and, to study the photocatalytic behaviour of the doped CuO samples. The morphological studies performed with the help of SEM revealed the formation of flower like CuO 3D nanostructures for all the doped samples. The slight shift in the position of peaks in the x-ray diffraction (XRD) pattern confirms that doping has been successfully done into CuO. Also, the sharp diffraction peaks suggest the polycrystalline nature of the sample with monoclinic structure. The UV-vis absorption analysis reveals a bandgap of 2.26, 2.12 and 2.15 eV for the CuO samples doped with nickel, zinc, and iron respectively via Tauc plot. The photocatalytic performance of the samples tested through the degradation of methylene blue (MB) dye suggests that samples doped with Zn shows better degradation. Thus, it is evident that the morphology and the optical properties of the CuO can be tailored by doping transition metal into it.
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Affiliation(s)
- Amal George
- PG & Research Department of Physics, Sacred Heart College, Tirupattur, 635601, Tamil Nadu, India
| | - D Magimai Antoni Raj
- PG & Research Department of Physics, Sacred Heart College, Tirupattur, 635601, Tamil Nadu, India
| | - X Venci
- PG & Research Department of Physics, Sacred Heart College, Tirupattur, 635601, Tamil Nadu, India; Department of Physics, Auxilium College (Autonomous), Vellore, 632006, Tamil Nadu, India
| | - A Dhayal Raj
- PG & Research Department of Physics, Sacred Heart College, Tirupattur, 635601, Tamil Nadu, India.
| | - A Albert Irudayaraj
- PG & Research Department of Physics, Sacred Heart College, Tirupattur, 635601, Tamil Nadu, India
| | - R L Josephine
- Department of Electrical and Electronic Engineering, National Institute of Technology Trichy, 620015, Tamil Nadu, India
| | - S John Sundaram
- PG & Research Department of Physics, Sacred Heart College, Tirupattur, 635601, Tamil Nadu, India
| | - Amal M Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Dunia A Al Farraj
- Department of Botany and Microbiology, College of Sciences, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - K Kaviyarasu
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, PO Box 392, Pretoria, South Africa; Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, PO Box 722, Somerset West, Western Cape Province, South Africa.
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Kumari MLA, Devi LG, Maia G, Chen TW, Al-Zaqri N, Ali MA. Mechanochemical synthesis of ternary heterojunctions TiO 2(A)/TiO 2(R)/ZnO and TiO 2(A)/TiO 2(R)/SnO 2 for effective charge separation in semiconductor photocatalysis: A comparative study. Environ Res 2022; 203:111841. [PMID: 34380049 DOI: 10.1016/j.envres.2021.111841] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/01/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
TiO2, ZnO, and SnO2 metal oxides were synthesized by the sol-gel method and heterojunctions were fabricated by combining TiO2 with either ZnO or SnO2 in a 1:1 ratio using mechanochemical ball milling process. The ball milling process promotes phase transition of TiO2 from anatase to rutile and yields ternary heterojunction of the type TiO2(A)/TiO2(R)/ZnO and TiO2(A)/TiO2(R)/SnO2 (A-anatase and R-rutile). These ternary heterojunctions were characterized by various analytical techniques and its photocatalytic efficiency is evaluated using 4-Chloro Phenol as a model compound under UV and solar light. The enhanced catalytic activity of TiO2(A)/TiO2(R)/ZnO heterojunction is attributed to the formation of Ti3+-Vo defect states which leads to the efficient charge carrier separation. During the ball milling process severe crystal deformation takes place in TiO2 and ZnO lattices by creating crystal lattice distortion which leads to the formation of defects due to valency mismatch between Ti4+ and Zn2+. A mechanistic pathway is proposed for the enhanced photocatalytic activity of the ternary heterojunctions.
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Affiliation(s)
- M L Aruna Kumari
- Department of Post Graduate Studies in Chemistry, Bangalore University, Bengaluru, 560001, India; Department of Chemistry, M. S. Ramaiah College of Arts, Science, and Commerce, Bengaluru, 560054, India.
| | - L Gomathi Devi
- Department of Post Graduate Studies in Chemistry, Bangalore University, Bengaluru, 560001, India
| | - Gilberto Maia
- Institute of Chemistry, Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, 1555, Campo Grande, MS, 79074-460, Brazil
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Nabil Al-Zaqri
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - M Ajmal Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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Yamuna A, Chen TW, Akilarasan M, Chen SM, Lou BS. Electrochemical determination of glucose in blood serum and sweat samples by the strontium doped Co3O4. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chen JY, Chen TW, Lu WD. HAT 2CH 2 score performance predicting neurologic events after cardiac implantable electronic device. Int J Med Sci 2022; 19:932-940. [PMID: 35693747 PMCID: PMC9149640 DOI: 10.7150/ijms.72497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/17/2022] [Indexed: 11/16/2022] Open
Abstract
Objectives: The HAT2CH2 score has been evaluated for predicting new-onset atrial fibrillation in several clinical conditions, but never for adverse neurologic events. We aimed to evaluate the effectiveness of HAT2CH2 score in predicting neurologic events in patients with cardiac implantable electronic device (CIED), comparing with atrial high-rate episodes (AHRE). Methods: This case-control study enrolled 314 consecutive patients aged 18 years or older with CIED implantation between January 2015 and April 2021. Patient data were analyzed retrospectively. The primary endpoint was subsequent neurologic events (NE) after implantation. AHRE was defined as > 175 bpm (Medtronic®) lasting ≥ 30 seconds. Variables associated with independent risk of NE were identified using multivariate Cox regression analysis with time-dependent covariates. Results: Patients' median age was 73 years and 61.8% of them were male. During follow-up (median 32 months), 18 NE occurred (incidence rate 2.15/100 patient-years, 95% CI 1.32-4.30). Multiple Cox regression analysis showed that the HAT2CH2 score (HR 2.424, 95% CI 1.683 - 3.492, p < 0.001) was an independent predictor for NE. Optimal HAT2CH2 score cutoff value was 3 with highest Youden index (AUC, 0.923; 95% CI, 0.881-0.966; p < 0.001). Both AHRE ≥ 1 minute and HAT2CH2 score ≥ 3 had the highest AUC of the receiver-operating characteristic (0.898, 95% CI, 0.831-0.965, p < 0.001). Significant increase was observed in NE occurrence rates using the HAT2CH2 score (p < 0.001). Conclusion: The HAT2CH2 score and episodes of AHRE lasting ≥ 1 minute are independent risk factors for NE in patients with CIED.
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Affiliation(s)
- Ju-Yi Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tse-Wei Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Da Lu
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Devi RK, Ganesan M, Chen TW, Chen SM, Liu X, Ali MA, Almutairi SM, Sethupathi M. Surface engineering of gadolinium oxide nanoseeds with nitrogen-doped carbon quantum dots: an efficient nanocomposite for precise detection of antibiotic drug clioquinol. NEW J CHEM 2022. [DOI: 10.1039/d1nj05243h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Nitrogen-doped carbon quantum dot decorated gadolinium oxide nanoseeds as an electrode modifier for the sensitive electrochemical detection of the antibiotic drug clioquinol in urine samples.
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Affiliation(s)
- Ramadhass Keerthika Devi
- Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, Republic of China
| | - Muthusankar Ganesan
- Department of Mechanical Engineering, National Taipei University of Technology, Taiwan, Republic of China
- Department of Industrial Chemistry, Alagappa University, Karaikudi-630003, Tamil Nadu, India
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW72AZ, UK
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, College of Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, Republic of China
| | - Xiaoheng Liu
- Key Laboratory of Education Ministry for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing 210094, China
| | - M. Ajmal Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saeedah M. Almutairi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Murugan Sethupathi
- Department of Industrial Chemistry, Alagappa University, Karaikudi-630003, Tamil Nadu, India
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Nataraj N, Chen TW, Chen SM, Tseng TW, Bian Y, Sun TT, Jiang J. Metal-organic framework (ZIF-67) interwoven multiwalled carbon nanotubes as a sensing platform for rapid administration of serotonin. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.09.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Rameshkumar MR, Arunagirinathan N, Senthamilselvan B, Swathirajan CR, Solomon SS, Vignesh R, Balakrishnan P, Aljowaie RM, Almaary KS, Chen TW. Occurrence of extended-spectrum β-lactamase, AmpC, and carbapenemase-producing genes in gram-negative bacterial isolates from human immunodeficiency virus infected patients. J Infect Public Health 2021; 14:1881-1886. [PMID: 34810142 DOI: 10.1016/j.jiph.2021.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/30/2021] [Accepted: 11/03/2021] [Indexed: 10/19/2022] Open
Abstract
BACKGROUND Progressive decline of immune response in HIV patients makes them susceptible to frequent bacterial infections. High usage of antibiotics influences the emergence of multidrug-resistant bacteria and worsens the clinical outcomes. In this study, the occurrence of drug-resistant genes in Gram-negative bacterial isolates from HIV patients in South India was analyzed. METHODS A total of 173 Gram-negative bacterial (GNB) isolates from HIV patients were screened for antibiotic susceptibility profile using the Kirby-Bauer diskdiffusion method. Positivity of drug-resistant genes was analyzed using polymerase chain reaction method. RESULTS In this study, 72.8% of bacterial isolates were obtained from urine specimens, and Escherichia coli (47.4%) was the predominantly isolated bacterium. Overall, 87.3% and 83.2% of GNB were resistant to 3rd generation cephalosporin antibiotics such as cefotaxime and ceftazidime, respectively, 56.6% were resistant to cephamycin (cefoxitin) and 43% to carbapenem (imipenem) antibiotics. Extended-spectrum β-lactamases (ESBL) production was noted among 79.5% of GNB isolates, followed by AmpC (57.1%) and Metallo β-lactamases (37.3%). Molecular analysis revealed that ESBL genes such as blaTEM (94.1%), blaCTX-M (89.2%), and blaSHV (24.2%) were detected at higher levels among GNB isolates. Carbapenemase-producing genes such as blaOXA-48 (20%), blaOXA-23 (2.6%), and both blaOXA-23 and blaOXA-51 like genes (2.6%) and AmpC producing genes such as blaCIT (26.7%), blaDHA (3.6%), and blaACC (1.8%) were detected at low-level. CONCLUSIONS This study concludes that ESBL producing genes are detected at high level among gram-negative bacterial isolates from HIV patients in South India.
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Affiliation(s)
- Marimuthu Ragavan Rameshkumar
- Department of Microbiology and Biotechnology, Presidency College (Autonomous), Affiliated to University of Madras, Chennai, Tamil Nadu, India
| | - Narasingam Arunagirinathan
- Department of Microbiology and Biotechnology, Presidency College (Autonomous), Affiliated to University of Madras, Chennai, Tamil Nadu, India; Central Research Laboratory, Meenakshi Academy of Higher Education and Research (Deemed to be University), Chennai, India.
| | - Balasubramanian Senthamilselvan
- Department of Microbiology and Biotechnology, Presidency College (Autonomous), Affiliated to University of Madras, Chennai, Tamil Nadu, India
| | | | - Sunil Suhas Solomon
- HIV Clinic, Y.R. Gaitonde Centre for AIDS Research and Education, Voluntary Health Services Hospital Campus, Chennai, India; Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Ramachandran Vignesh
- Infectious Diseases Laboratory, Y.R. Gaitonde Centre for AIDS Research and Education, Voluntary Health Services Hospital Campus, Chennai, India; Preclinical Department, Faculty of Medicine, Universiti Kuala Lumpur Royal College of Medicine Perak (RCMP UniKL), Ipoh, Malaysia
| | - Pachamuthu Balakrishnan
- Infectious Diseases Laboratory, Y.R. Gaitonde Centre for AIDS Research and Education, Voluntary Health Services Hospital Campus, Chennai, India
| | - Reem M Aljowaie
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, Saudi Arabia
| | - Khalid S Almaary
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, Saudi Arabia
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
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