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Ikram M, Shen C, Pameijer CR. Racial and Socioeconomic Differences and Surgical Outcomes in Pancreaticoduodenectomy Patients: A Systematic Review of High- Versus Low-Volume Hospitals in the United States. Am Surg 2024; 90:292-302. [PMID: 37941362 DOI: 10.1177/00031348231211040] [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] [Indexed: 11/10/2023]
Abstract
BACKGROUND Pancreaticoduodenectomy (PD) is associated with better outcomes in high-volume hospitals. However, it is unknown whether and to what extent the improved performance of high-volume hospitals may be associated with racial and socioeconomic factors, which have been shown to impact operative and postoperative outcomes in major surgeries. This review aims to identify the differences in racial and socioeconomic characteristics of patients who underwent PD surgery in high- and low-volume hospitals. METHODS PubMed, Cochrane, and Web of Science were systematically searched between May 1, 2023 and May 7, 2023 without any time restriction on publication date. Studies that were conducted in the United States and had a direct comparison between high- and low-volume hospitals were included. RESULTS A total of 30 observational studies were included. When racial proportions were compared by hospital volume, thirteen studies reported that compared to high-volume hospitals, a higher percentage of racial minorities underwent PD in low-volume hospitals. Disparities in traveling distance, education levels, and median income at baseline between high- and low-volume hospitals were reported by four, three, and two studies, respectively. CONCLUSION A racial difference at baseline between high- and low-volume hospitals was observed. Socioeconomic factors were less frequently included in existing literature. Future studies are needed to understand the socioeconomic differences between patients receiving PD surgery in high- and low-volume hospitals.
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Affiliation(s)
- Mohammad Ikram
- Department of Surgery, Division of Outcomes Research and Quality, College of Medicine, The Pennsylvania State University, Hershey, PA, USA
| | - Chan Shen
- Department of Surgery, Division of Outcomes Research and Quality, College of Medicine, The Pennsylvania State University, Hershey, PA, USA
- Department of Public Health Sciences, Division of Health Services and Behavioral Research, College of Medicine, The Pennsylvania State University, Hershey, PA, USA
| | - Colette R Pameijer
- Department of Surgery, Division of Surgical Oncology, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
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Kar A, Nutting T, Ikram M, Sullivan C. The clozapine conundrum: Navigating neutropenia and the pursuit of effective care in treatment-resistant schizophrenia. Int J Psychiatry Med 2023:912174231214647. [PMID: 37971414 DOI: 10.1177/00912174231214647] [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] [Indexed: 11/19/2023]
Abstract
Background: This case explores the challenges encountered in managing treatment-resistant paranoid schizophrenia, focusing on the limitations of using Clozapine due to the risk of neutropenia. The United Kingdom Clozapine Patient Monitoring Service (UK CPMS) and its eligibility criteria are discussed, highlighting the potential benefits of expanding access to Clozapine for patients who could potentially benefit from this medication. The integration of Clozapine genetic testing as a personalised approach is explored, emphasising the importance of identifying patients with a favourable genetic profile for Clozapine response. Study Sample: The case presentation of Mr. X exemplifies the difficulties faced in managing treatment-resistant schizophrenia when access to Clozapine is restricted, leading to persistent negative symptoms. Conclusion: The article underscores the importance of innovative solutions and personalized care to enhance the treatment outcomes for patients with treatment-resistant paranoid schizophrenia. It acknowledges that certain restrictions can limit the effectiveness of treatment for individuals in this context.
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Affiliation(s)
- Anindya Kar
- Wotton Lawn Hospital, Gloucestershire Health and Care NHS Foundation Trust, UK
| | - Thomas Nutting
- Wotton Lawn Hospital, Gloucestershire Health and Care NHS Foundation Trust, UK
| | - Mohammad Ikram
- Wotton Lawn Hospital, Gloucestershire Health and Care NHS Foundation Trust, UK
| | - Charles Sullivan
- Wotton Lawn Hospital, Gloucestershire Health and Care NHS Foundation Trust, UK
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Adjeroh L, Brothers T, Shawwa K, Ikram M, Al-Mamun MA. The association between polypharmacy and health-related quality of life among non-dialysis chronic kidney disease patients. PLoS One 2023; 18:e0293912. [PMID: 37956162 PMCID: PMC10642842 DOI: 10.1371/journal.pone.0293912] [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: 06/18/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND AND OBJECTIVE The United States government spends over $85 billion annually on treating non-dialysis chronic kidney disease (CKD). Patients with CKD are prescribed a multitude of medications to manage numerous comorbidities associated with CKD. Thus, this study aims to investigate the association between polypharmacy and health-related quality of life (HRQoL) in non-dialysis CKD patients. METHODS This cross-sectional study utilized data from the Medical Expenditure Panel Survey (MEPS) from 2010 through 2019. We classified polypharmacy into three groups based on the number of medication classes: ≤ 4 (minor polypharmacy), 5 through 9 (major polypharmacy), and ≥ 10 (hyperpolypharmacy). To measure HRQoL, a Physical Component Summary (PCS) and a Mental Component Summary (MCS) were obtained from the 12-item Short-Form Health Survey version 2 and Veteran's Rand 12 item. We applied multivariable ordinary least squares regression to assess the association between polypharmacy and HRQoL in non-dialysis CKD patients. RESULTS A total of 649 CKD patients (weighted n = 667,989) were included. Patients with minor polypharmacy, major polypharmacy, and hyperpolypharmacy were 22.27%, 48.24%, and 29.48%, respectively. Major polypharmacy and hyperpolypharmacy were significantly and negatively associated with lower PCS scores when compared with minor polypharmacy [Beta = -3.12 (95% CI: -3.62, -2.62), p-value<0.001; Beta = -4.13 (95CI: -4.74, -3.52), p-value<0.001]. Similarly, major polypharmacy and hyperpolypharmacy were significantly and negatively associated with lower MCS scores when compared to minor polypharmacy [Beta = -0.38 (95% CI: -0.55, -0.20), p-value<0.001; Beta = -1.70 (95% CI: -2.01, -1.40), p-value<0.001]. The top 5 classes of medications used by CKD patients were antihyperlipidemic (56.31%), beta-adrenergic blockers (49.71%), antidiabetics (42.14%), analgesics (42.17%), and diuretics (39.65%). CONCLUSION Our study found that both major polypharmacy and hyperpolypharmacy were associated with lower HRQoL among non-dialysis CKD patients. This study highlights the need for further evaluation of the combination of medications taken by non-dialysis CKD patients to minimize unnecessary and inappropriate medication use.
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Affiliation(s)
- Leonie Adjeroh
- Department of Pharmaceutical Systems and Policy, West Virginia University, Morgantown, West Virginia, United States of America
| | - Todd Brothers
- College of Pharmacy, University of Rhode Island, Kingston, Rhode Island, United States of America
| | - Khaled Shawwa
- Department of Medicine, Section of Nephrology, West Virginia University, Morgantown, West Virginia, United States of America
| | - Mohammad Ikram
- Department of Surgery, Penn State, Hershey, Pennsylvania, United States of America
| | - Mohammad A. Al-Mamun
- Department of Pharmaceutical Systems and Policy, West Virginia University, Morgantown, West Virginia, United States of America
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Nabgan W, Ikram M, Alhassan M, Owgi A, Van Tran T, Parashuram L, Nordin A, Djellabi R, Jalil A, Medina F, Nordin M. Bibliometric analysis and an overview of the application of the non-precious materials for pyrolysis reaction of plastic waste. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104717] [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: 03/01/2023] Open
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Alhassan M, Jalil AA, Bahari MB, Owgi AHK, Nabgan W, Hassan NS, Tran TV, Abdulrasheed AA, Hamid MYS, Ikram M, Firmansyah ML, Holilah H, Sholejah NA. Profitable Fischer Tropsch realization via CO 2-CH 4 reforming; an overview of nickel-promoter-support interactions. RSC Adv 2023; 13:1711-1726. [PMID: 36712622 PMCID: PMC9828048 DOI: 10.1039/d2ra06773k] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/15/2022] [Indexed: 01/11/2023] Open
Abstract
Environmental pollution, climate change, and fossil fuel extinction have aroused serious global interest in the search for alternative energy sources. The dry reforming of methane (DRM) could be a good technique to harness syngas, a starting material for the FT energy process from greenhouse gases. Noble metal DRM catalysts are effective for the syngas generation but costly. Therefore, they inevitably, must be replaced by their Ni-based contemporaries for economic reasons. However, coking remains a strong challenge that impedes the industrialization of the FT process. This article explains the secondary reactions that lead to the production of detrimental graphitic coke deposition on the surface of active nickel catalyst. The influence of nickel particle size, impact of extra surface oxygen species, interaction of Ni catalysts with metal oxide supports/promoters, and larger fraction of exposed nickel active sites were addressed in this review. Size of active metal determines the conversion, surface area, metal dispersion, surface reactions, interior diffusion effects, activity, and yield. The influence of oxygen vacancy and coke deposition on highly reported metal oxide supports/promoters (Al2O3, MgO and La2O3) was postulated after studying CIFs (crystallographic information files) obtained from the Crystallography open database (COD) on VESTA software. Thus, overcoming excessive coking by La2O3 promotion is strongly advised in light of the orientation of the crystal lattice characteristics and the metal-support interaction can be used to enhance activity and stability in hydrogen reforming systems.
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Affiliation(s)
- M. Alhassan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia81310UTM Johor BahruJohorMalaysia,Department of Chemistry, Sokoto State UniversityPMB 2134, Airport RoadSokotoNigeria
| | - A. A. Jalil
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia81310UTM Johor BahruJohorMalaysia,Centre of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia81310UTM Johor BahruJohorMalaysia
| | - M. B. Bahari
- Faculty of Science, Universiti Teknologi Malaysia81310 UTM Johor BahruJohorMalaysia
| | - A. H. K. Owgi
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia81310UTM Johor BahruJohorMalaysia
| | - W. Nabgan
- Departament d'Enginyeria Química, Universitat Rovira I VirgiliAv Països Catalans 2643007TarragonaSpain
| | - N. S. Hassan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia81310UTM Johor BahruJohorMalaysia
| | - T. V. Tran
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia81310UTM Johor BahruJohorMalaysia,Applied Technology and Sustainable Development, Nguyen Tat Thanh University300A Nguyen Tat Thanh District 4Ho Chi Minh City 755414Vietnam
| | - A. A. Abdulrasheed
- Department of Chemical Engineering, Abubakar Tafawa Balewa UniversityPMB 0248BauchiBauchi StateNigeria
| | - M. Y. S. Hamid
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia81310UTM Johor BahruJohorMalaysia
| | - M. Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore54000 PunjabPakistan
| | - M. L. Firmansyah
- Nanotechnology Engineering, Faculty of Advanced Technology and Multidiscipline, Airlangga UniversityJl. Dr. Ir. H. SoekarnoSurabaya 60115Indonesia
| | - H. Holilah
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh NopemberSukoliloSurabaya, 60111Indonesia,Research Center for Biomass and Bioproducts, National Research and Innovation Agency of Indonesia (BRIN)Cibinong16911Indonesia
| | - N. A. Sholejah
- College of Vocational Studies, Bogor Agricultural University (IPB University)Jalan Kumbang No. 14Bogor 16151Indonesia
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Ikram M, Shaikh NF, Siddiqui ZA, Dwibedi N, Misra R, Vishwanatha JK, Sambamoorthi U. Factors associated with COVID-19-related mental health among Asian Indians in the United States. J Affect Disord Rep 2023; 11:100472. [PMID: 36624854 PMCID: PMC9812469 DOI: 10.1016/j.jadr.2023.100472] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 12/14/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Background In the United States, the COVID-19 pandemic has caused increased mental health symptoms and mental illness. Specific subgroups such as Asian Indians in the US have also been subject to additional stressors due to unprecedented loss of lives in their home country and increased Asian hate due to the misperception that Asians are to be blamed for the spread of the SARS-CoV-2. Objective We examined the various factors including discrimination associated with COVID-19-related mental health symptoms among Asian Indians. Methods We administered an online survey between May 2021 and July 2021 using convenient and snowball sampling methods to recruit Asian Indian adults (age > 18 years, N = 289). The survey included questions on mental health and the experience with unfair treatment in day-to-day life. Descriptive analysis and logistic regressions were performed. Results Overall, 46.0% reported feeling down, depressed, or lonely and feeling nervous, tense, or worried due to the COVID-19 pandemic; 90.0% had received at least one dose of vaccination and 74.7% reported some form of discrimination. In the fully-adjusted logistic regression, age (AOR = 0.95; 95%CI- 0.92, 0.97;p < 0.01) and general health (AOR=0.84; 95%CI- 0.73, 0.97; p < 0.015) were negatively associated with mental health symptoms. Participants who experienced discrimination were more likely (AOR=1.26; 95%CI- 1.08, 1.46; p < 0.01) to report mental health symptoms. Conclusion In this highly vaccinated group of Asian Indians discriminatory behaviors were associated with mental health symptoms suggesting the need for novel institutional level policy responses to reduce anti-Asian racism.
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Affiliation(s)
- Mohammad Ikram
- Department of Pharmaceutical Systems and Policy, West Virginia University School of Pharmacy, Robert C. Byrd Health Sciences Center [North], P.O. Box 9510 Morgantown, WV 26506-9510, United States
| | - Nazneen Fatima Shaikh
- Department of Pharmaceutical Systems and Policy, West Virginia University School of Pharmacy, Robert C. Byrd Health Sciences Center [North], P.O. Box 9510 Morgantown, WV 26506-9510, United States
| | - Zasim Azhar Siddiqui
- Department of Pharmaceutical Systems and Policy, West Virginia University School of Pharmacy, Robert C. Byrd Health Sciences Center [North], P.O. Box 9510 Morgantown, WV 26506-9510, United States
| | - Nilanjana Dwibedi
- The Janssen Pharmaceutical Companies of Johnson & Johnson, United States
| | - Ranjita Misra
- Social and Behavioral Sciences, School of Public Health, West Virginia University, PO Box 9190,3812 B HSC South, Department of Social & Behavioral Sciences, Morgantown, WV 26506, United States
| | - Jamboor K Vishwanatha
- Texas Center for Health Disparities, National Research Mentoring Network, AIM-AHEAD Coordinating Center, Texas CEAL Consortium, Institute for Health Disparities, University of North Texas Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX 76107, United States
| | - Usha Sambamoorthi
- Pharmacotherapy Department, College of Pharmacy, University of North Texas Health Sciences Center,"Vashisht" Professor of Asian Health Disparities HEARD Scholar, United States
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Ikram M, Shaikh NF, Vishwanatha JK, Sambamoorthi U. Leading Predictors of COVID-19-Related Poor Mental Health in Adult Asian Indians: An Application of Extreme Gradient Boosting and Shapley Additive Explanations. Int J Environ Res Public Health 2022; 20:775. [PMID: 36613095 PMCID: PMC9819341 DOI: 10.3390/ijerph20010775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/22/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
During the COVID-19 pandemic, an increase in poor mental health among Asian Indians was observed in the United States. However, the leading predictors of poor mental health during the COVID-19 pandemic in Asian Indians remained unknown. A cross-sectional online survey was administered to self-identified Asian Indians aged 18 and older (N = 289). Survey collected information on demographic and socio-economic characteristics and the COVID-19 burden. Two novel machine learning techniques-eXtreme Gradient Boosting and Shapley Additive exPlanations (SHAP) were used to identify the leading predictors and explain their associations with poor mental health. A majority of the study participants were female (65.1%), below 50 years of age (73.3%), and had income ≥ $75,000 (81.0%). The six leading predictors of poor mental health among Asian Indians were sleep disturbance, age, general health, income, wearing a mask, and self-reported discrimination. SHAP plots indicated that higher age, wearing a mask, and maintaining social distancing all the time were negatively associated with poor mental health while having sleep disturbance and imputed income levels were positively associated with poor mental health. The model performance metrics indicated high accuracy (0.77), precision (0.78), F1 score (0.77), recall (0.77), and AUROC (0.87). Nearly one in two adults reported poor mental health, and one in five reported sleep disturbance. Findings from our study suggest a paradoxical relationship between income and poor mental health; further studies are needed to confirm our study findings. Sleep disturbance and perceived discrimination can be targeted through tailored intervention to reduce the risk of poor mental health in Asian Indians.
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Affiliation(s)
- Mohammad Ikram
- Department of Pharmaceutical Systems and Policy, School of Pharmacy, West Virginia University, Robert C. Byrd Health Sciences Center [North], P.O. Box 9510, Morgantown, WV 26506-9510, USA
| | - Nazneen Fatima Shaikh
- Department of Pharmaceutical Systems and Policy, School of Pharmacy, West Virginia University, Robert C. Byrd Health Sciences Center [North], P.O. Box 9510, Morgantown, WV 26506-9510, USA
| | - Jamboor K. Vishwanatha
- Department of Microbiology, Immunology and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Usha Sambamoorthi
- Department of Pharmacotherapy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
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Ikram M, Shaikh NF, Sambamoorthi U. A Linear Decomposition Approach to Explain Excess Direct Healthcare Expenditures Associated with Pain Among Adults with Osteoarthritis. Health Serv Insights 2022; 15:11786329221133957. [PMID: 36325378 PMCID: PMC9618757 DOI: 10.1177/11786329221133957] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 10/03/2022] [Indexed: 11/07/2022] Open
Abstract
Objective: Many patients with osteoarthritis experience pain which can lead to higher healthcare expenditures. It is important to understand the factors that drive the excess expenditures associated with pain in osteoarthritis. Design: Cross-sectional. Study sample: Our study sample consisted of adults (age ⩾ 18 years) from the Medical Expenditure Panel Survey (MEPS, 2018). Methods: Adults who were alive during the calendar year and had pain status were included in this study (N = 2804 weighted N = 32.03 million). Osteoarthritis was identified from the medical conditions file and household file. We used multivariable ordinary least squares regression to identify the statistically significant association of pain with direct healthcare expenditures. The Blinder-Oaxaca post-linear decomposition on log-transformed total direct healthcare expenditures was used to estimate the extent to which differences in characteristics contribute to the excess expenditures associated with pain. Results: Adults with osteoarthritis and pain had higher average expenditures ($21 814 vs $10 827, P < .001; 9.318 vs 8.538 in logtransformed expenditures) compared to those without pain. Pooled regression weights explained 62.9% of excess expenditures differences in characteristics between the 2 groups. The 2 main drivers of excess healthcare expenditures among adults with osteoarthritis and pain were (i) comorbidities (diabetes, asthma, chronic obstructive pulmonary disease, depression, heart diseases, cancer, and non-cancer pain conditions and (ii) prescription medications (NSAIDs, opioids, and polypharmacy). Conclusion: Need factors such as comorbid conditions, and prescription treatment explained the excess healthcare expenditures among adults with osteoarthritis and pain. The study findings suggest that reducing polypharmacy and appropriate management of comorbid conditions may be a pathway to reduce excess expenditures among adults with osteoarthritis and pain.
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Affiliation(s)
- Mohammad Ikram
- Department of Pharmaceutical Systems and Policy, West Virginia University School of Pharmacy, Morgantown, WV, USA
- Mohammad Ikram, Department of Pharmaceutical Systems and Policy, West Virginia University School of Pharmacy, Robert C. Byrd Health Sciences Center [North], P.O. Box 9510, Morgantown, WV 26506-9510, USA. Emails: ;
| | - Nazneen Fatima Shaikh
- Department of Pharmaceutical Systems and Policy, West Virginia University School of Pharmacy, Morgantown, WV, USA
| | - Usha Sambamoorthi
- Pharmacotherapy Department,College of Pharmacy, “Vashisht” Professor of Health Disparities, University of North Texas Health Sciences Center, Fort Worth, TX, USA
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Nabgan W, Saeed M, Jalil AA, Nabgan B, Gambo Y, Ali MW, Ikram M, Fauzi AA, Owgi AHK, Hussain I, Thahe AA, Hu X, Hassan NS, Sherryna A, Kadier A, Mohamud MY. A state of the art review on electrochemical technique for the remediation of pharmaceuticals containing wastewater. Environ Res 2022; 210:112975. [PMID: 35196501 DOI: 10.1016/j.envres.2022.112975] [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: 11/30/2021] [Revised: 01/29/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
Pharmaceutical wastewater is a frequent kind of wastewater with high quantities of organic pollutants, although little research has been done in the area. Pharmaceutical wastewaters containing antibiotics and high salinity may impair traditional biological treatment, resulting in the propagation of antibiotic resistance genes. The potential for advanced oxidation processes (AOPs) to break down hazardous substances instead of present techniques that essentially transfer contaminants from wastewater to sludge, a membrane filter, or an adsorbent has attracted interest. Among a variety of AOPs, electrochemical systems are a feasible choice for treating pharmaceutical wastewater. Many electrochemical approaches exist now to remediate rivers polluted by refractory organic contaminants, like pharmaceutical micro-pollutants, which have become a severe environmental problem. The first part of this investigation provides the bibliometric analysis of the title search from 1970 to 2021 for keywords such as wastewater and electrochemical. We have provided information on relations between keywords, countries, and journals based on three fields plot, inter-country co-authorship network analysis, and co-occurrence network visualization. The second part introduces electrochemical water treatment approaches customized to these very distinct discarded flows, containing how processes, electrode materials, and operating conditions influence the results (with selective highlighting cathode reduction and anodic oxidation). This section looks at how electrochemistry may be utilized with typical treatment approaches to improve the integrated system's overall efficiency. We discuss how electrochemical cells might be beneficial and what compromises to consider when putting them into practice. We wrap up our analysis with a discussion of known technical obstacles and suggestions for further research.
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Affiliation(s)
- Walid Nabgan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia.
| | - M Saeed
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - A A Jalil
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia.
| | - B Nabgan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Y Gambo
- Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - M W Ali
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, 54000, Punjab, Pakistan.
| | - A A Fauzi
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - A H K Owgi
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - I Hussain
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
| | - Asad A Thahe
- Department of X- Ray and Sonar, Faculty Of Medical Technology, AL-Kitab University, Iraq
| | - Xun Hu
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - N S Hassan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - A Sherryna
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Abudukeremu Kadier
- Laboratory of Environmental Science and Technology, The Xinjiang Technical Institute of Physics and Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences (CAS), Urumqi, 830011, China.
| | - M Y Mohamud
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
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Yaqub A, Ikram M, Wolters FJ. [Population attributable fraction: a guideline for disease prevention]. Ned Tijdschr Geneeskd 2022; 166:D6755. [PMID: 35899721] [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: 06/15/2023]
Abstract
The improvement of public health relies on effective strategies for disease prevention, but the optimal preventive strategy is often difficult to determine. The population attributable fraction is a tool that allows policy makers to prioritise among different interventions by quantifying the share of disease in the population that is due to one specific risk factor. In this article, we discuss the computation of the population attributable fraction, as well as its advantages, limitations, and challenges for proper interpretation. We further compare the population attributable fraction to the etiologic fraction, which concerns the impact of a risk factor of disease at the individual level. We illustrate the importance of either measure, as well as differences between them, on the basis of scenarios in which community medicine and patient-centred care might not always be in agreement.
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Affiliation(s)
| | | | - Frank J Wolters
- Erasmus MC, afd. Epidemiologie, Rotterdam
- Contact: Frank J. Wolters
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Ikram M, Shahzadi A, Hayat S, Nabgan W, Ul-Hamid A, Haider A, Noor M, Goumri-Said S, Kanoun MB, Ali S. Novel Ta/chitosan-doped CuO nanorods for catalytic purification of industrial wastewater and antimicrobial applications. RSC Adv 2022; 12:16991-17004. [PMID: 35755577 PMCID: PMC9172551 DOI: 10.1039/d2ra03006c] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 05/30/2022] [Indexed: 02/05/2023] Open
Abstract
Novel tantalum (Ta) and chitosan (CS)-doped CuO nanorods (NRs) were synthesized using a single step co-precipitation route. Different concentrations (2 and 4%) of Ta were used in fixed amounts of CS and CuO to examine their catalytic activity and antimicrobial potential. For critical analysis, synthesized NRs were systematically examined using XRD, FTIR HRTEM, EDS, UV-Vis and PL spectroscopy. The XRD technique revealed the monoclinic structure of CuO while an increase in its crystallite size (from 15.5 to 18.5 nm) was observed upon doping. FTIR spectra were examined to study the functional groups of CuO where peaks at 514 cm-1 and 603 cm-1 confirmed the formation of CuO NRs. PL spectra depicted the charge transfer efficiency of the synthesized samples. The presence of dopants (Ta and CS) and constituent elements (Cu, O) was detected using EDS spectra. Additionally, the pH based catalytic performance of fabricated NRs revealed 99.7% dye degradation of toxic methylene blue (MB) dye in neutral media, 99.4% in basic media and 99.5% in acidic media along with promising antibacterial activities for Gram negative/positive bacteria, respectively upon doping of Ta (4%) into CS/CuO. The adsorption energies of CuO co-doped with CS/Ta led to the creation of stable structures that were investigated theoretically using density functional theory.
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Affiliation(s)
- M Ikram
- Solar Cell Application Research Lab, Department of Physics, Government College University Lahore Lahore 54000 Punjab Pakistan
| | - A Shahzadi
- Faculty of Pharmacy, The University of Lahore Lahore 54000 Pakistan
| | - S Hayat
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - W Nabgan
- Departament d'Enginyeria Química, Universitat Rovira i Virgili Av Països Catalans 26 43007 Tarragona Spain
| | - A Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - A Haider
- Department of Clinical Sciences, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture Multan 66000 Pakistan
| | - M Noor
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - Souraya Goumri-Said
- College of Science, Physics Department, Alfaisal University P. O. Box 50927 Riyadh 11533 Saudi Arabia
| | - Mohammed Benali Kanoun
- Department of Physics, College of Science, King Faisal University P. O. Box 400 Al-Ahsa 31982 Saudi Arabia
| | - S Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
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Akbar MU, Ikram M, Imran M, Haider A, Ul-Hamid A, Dilpazir S, Shahzadi I, Nazir G, Shahzadi A, Nabgan W, Haider J. Cu-loaded C3N4-MgO nanorods for promising antibacterial and dye degradation. Appl Nanosci 2022. [DOI: 10.1007/s13204-022-02494-7] [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] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Safarudin R, Ikram M, Marshal K, Shaikh N, Attal N, Dwibedi N, Sambamoorthi U. Attitudes and Beliefs of College Students towards Pain Management Modalities: Theory of Planned Behavior Approach. Chronic Pain Manag 2022; 6:147. [PMID: 36820006 PMCID: PMC9938960 DOI: 10.29011/2576-957x.100047] [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] [Indexed: 11/28/2022]
Abstract
Background Chronic pain exhibits a burdening onset and duration in young adults. It is critical to understand appropriate pain management decision-making. Objective To investigate the associations of attitudes and beliefs of college students with their intention and behavior toward pain management modalities using the Theory of Planned Behavior (TPB). Methods In this cross-sectional online survey study, we recruited college students (age≥18 years) at West Virginia University, Morgantown, West Virginia, United States. We examined four pain management modalities: Over-the-Counter (OTC) pain medications, prescription pain medications (RX), mindfulness therapy, and yoga/exercise. Likert scales were used to assess TPB constructs (attitude, Subjective Norm [SN], Perceived Behavior Control [PBC], intention, and behavior). We analyzed the associations of the TPB constructs with both intention and behavior toward pain management modalities using multiple linear regression. Results Of the 364 returned surveys, 227 were completed and analyzed. Attitude was found to be significantly associated with the intention to use all pain management modalities, while PBC was significantly associated with the intentions to use RX, mindfulness, and yoga/exercise (RX: β = 0.38; 95%CI= 0.28, 0.84; p=<0.001, mindfulness: β=0.27; 95%CI=0.07, 0.76; p=0.019, and Yoga/exercise: β=0.35; 95%CI=0.25, 0.85; p=<0.001). Furthermore, the intention to use pain management modalities consistently predicted all behaviors (OTC: β=0.49; 95%CI=0.32, 0.76; p=<0.001, RX: β=0.47; 95%CI=0.17, 0.58; p=<0.001, Mindfulness: β=0.62; 95%CI=0.40, 0.72; p=<0.001, Yoga/Exercise: β=0.59; 95%CI=0.42, 0.84; p=<0.001). Conclusion College students' attitude and PBC were the top predictors of intention to choose pain management modalities, and intention predicted behavior. Research with robust study design is needed to confirm our study findings.
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Affiliation(s)
- Rudi Safarudin
- Department of Pharmaceutical Systems and Policy, School of Pharmacy, West Virginia University, Morgantown, WV, USA,Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Tadulako University, Palu, Central Sulawesi, Indonesia,Corresponding author: Rudi Safarudin, Department of Pharmaceutical Systems and Policy, School of Pharmacy, West Virginia University, Morgantown, WV, USA
| | - Mohammad Ikram
- Department of Pharmaceutical Systems and Policy, School of Pharmacy, West Virginia University, Morgantown, WV, USA
| | - Kent Marshal
- West Virginia Clinical & Translational Science Institute, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Nazneen Shaikh
- Department of Pharmaceutical Systems and Policy, School of Pharmacy, West Virginia University, Morgantown, WV, USA
| | - Nawar Attal
- Division of Exercise Physiology, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Nilanjana Dwibedi
- Neuroscience, The Janssen Pharmaceutical Companies of Johnson & Johnson, USA
| | - Usha Sambamoorthi
- Department of Pharmacotherapy, College of Pharmacy, University of North Texas Health Sciences Center, Fort Worth, TX, USA
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Czarniak P, Ahmadizar F, Hughes J, Parsons R, Kavousi M, Ikram M, Stricker BH. Proton pump inhibitors are associated with incident type 2 diabetes mellitus in a prospective population-based cohort study. Br J Clin Pharmacol 2021; 88:2718-2726. [PMID: 34907592 PMCID: PMC9303945 DOI: 10.1111/bcp.15182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 08/07/2021] [Revised: 10/27/2021] [Accepted: 12/02/2021] [Indexed: 12/19/2022] Open
Abstract
Aim To investigate the association between proton pump inhibitors (PPIs) and risk of incident diabetes in a follow‐up study and to investigate its potential mechanisms. Methods A total of 9531 individuals without type 2 diabetes (T2DM) at baseline were included from the Rotterdam Study, a prospective population‐based cohort of 14 926 individuals aged 45 years or older. During the study period (1 April 1997 to 1 January 2012) all incident cases of T2DM were enrolled. We used multivariable linear regression analysis to investigate the associations of baseline PPI use and various serum biomarkers (eg, serum magnesium, insulin‐like growth factor 1) which might modify the association. Thereafter, we excluded prevalent PPI users and performed a Cox proportional hazard regression analysis to explore the time‐varying effect of incident PPI use on T2DM during follow‐up. Results Baseline use of a PPI was associated with increased serum levels of fasting insulin (0.091 pmoL/L, 95% confidence interval [CI] 0.049, 0.133), homeostasis model assessment‐insulin resistance (0.100, 95% CI 0.056, 0.145) and C‐reactive protein (0.29 mg/L, 95% CI 0.198, 0.384), but decreased levels of magnesium (−0.009 mmol/L, 95% CI −0.014, −0.004) and IGF‐1 (−0.805 nmoL/L, 95% CI −1.015, −0.595). After adjustment for risk factors such as physical activity and body mass index/waist‐to‐hip ratio, current use of PPI was associated with an increased risk of incident T2DM (hazard ratio [HR] 1.69, 95% CI 1.36‐2.10). The effect was dose‐dependent with the highest risk (HR 1.88, 95% CI 1.29‐2.75) in those on more than one defined daily dose. Conclusion New users of PPIs during follow‐up had a significantly higher dose‐dependent risk of incident diabetes. We suggest vigilance regarding their potential adverse effect on glucose homeostasis.
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Affiliation(s)
- Petra Czarniak
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | - Fariba Ahmadizar
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Jeff Hughes
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | - Richard Parsons
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | - Maryam Kavousi
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Mohammad Ikram
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Bruno H Stricker
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
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Ali MA, Hamiduddin H H, Zaigham M, Nafees S, Ikram M, Jahangeer G. Comparative Physicochemical Analysis of Kushta-E-Murdarsang Prepared by Classical and Muffle Furness Method. J Young Pharm 2021. [DOI: 10.5530/jyp.2021.13.43] [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: 11/23/2022] Open
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Msehli M, Ikram M, Karray R, Ben Fatma L, Karoui A, Channoufi M, Maghrebi H, Ben Hmida F, Jbeli H, Zouaghi M. L’hémodialyse au cours de l’insuffisance rénale aiguë gravidique. Nephrol Ther 2021. [DOI: 10.1016/j.nephro.2021.07.279] [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: 11/16/2022]
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Izidbih Y, Hiba G, Lilia B, Ikram M, Dhouha D, Ben Hmida F, Soumaya B, Lamia R, Hela J, Mk Z. Le score pronostique international de la néphropathie à IgA dans une cohorte rétrospective Tunisienne. Nephrol Ther 2021. [DOI: 10.1016/j.nephro.2021.07.221] [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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Izidbih Y, Ghabi H, Lilia B, Ikram M, Soumaya B, Lamia R, Ben Hmida F, Mohamed Karim Z. Néphropathie à IgA : intérêt de la fixation glomérulaire du C4d. Nephrol Ther 2021. [DOI: 10.1016/j.nephro.2021.07.219] [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: 10/20/2022]
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Sulaiman A, Lutfi A, Ikram M, Fatimi S, Bin Pervez M, Shamim F, Abbas SA, Iftikhar H. Tracheomalacia after thyroidectomy for retrosternal goitres requiring sternotomy- a myth or reality? Ann R Coll Surg Engl 2021; 103:504-507. [PMID: 34192497 DOI: 10.1308/rcsann.2021.0014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
INTRODUCTION Tracheomalacia after thyroidectomy is not well understood. Reports on tracheomalacia are conflicting, with some suggesting a high rate and other large cohorts in which no tracheomalacia is reported. The aim of our study was to assess the incidence and factors associated with tracheomalacia after thyroidectomy in patients with retrosternal goitres requiring sternotomy at a high-volume tertiary care referral centre. METHODS A longitudinal cohort study was conducted from January 2011 to December 2019. All adult patients who underwent thyroidectomy with sternotomy were included. Tracheomalacia was considered when tracheal rings were soft compared with other parts (proximal or distal) of the trachea and required either tracheostomy or resection with anastomosis. The decision to perform a tracheostomy or to administer continuous or bilevel positive airway pressure postoperatively was made depending on the degree of tracheomalacia. Logistic regression analysis was used to assess factors associated with tracheomalacia. RESULTS We evaluated 40 patients who underwent thyroidectomy with sternotomy. The mean age of our cohort was 48.7 ± 11.3 years and the population was predominantly female (67.5%). One patient required tracheal resection with anastomosis, and two patients required tracheostomy. Multivariable logistic regression analysis did not reveal any patient- or thyroid-related factor significantly associated with the development of tracheomalacia in our cohort. CONCLUSIONS The incidence of tracheomalacia after thyroidectomy with sternotomy appears to be very low. However, the occurrence of tracheomalacia after thyroidectomy in cases of large goitre is possible and hence worrisome.
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Affiliation(s)
- A Sulaiman
- Aga Khan University Hospital, Karachi, Pakistan
| | - A Lutfi
- Aga Khan University Hospital, Karachi, Pakistan
| | - M Ikram
- Aga Khan University Hospital, Karachi, Pakistan
| | - S Fatimi
- Aga Khan University Hospital, Karachi, Pakistan
| | | | - F Shamim
- Aga Khan University Hospital, Karachi, Pakistan
| | - S A Abbas
- Aga Khan University Hospital, Karachi, Pakistan
| | - H Iftikhar
- Aga Khan University Hospital, Karachi, Pakistan
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Ikram M, Hayat S, Imran M, Haider A, Naz S, Ul-Hamid A, Shahzadi I, Haider J, Shahzadi A, Nabgan W, Ali S. Novel Ag/cellulose-doped CeO 2 quantum dots for efficient dye degradation and bactericidal activity with molecular docking study. Carbohydr Polym 2021; 269:118346. [PMID: 34294353 DOI: 10.1016/j.carbpol.2021.118346] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 04/01/2021] [Revised: 06/10/2021] [Accepted: 06/12/2021] [Indexed: 02/08/2023]
Abstract
In the present study, the novel Ag/cellulose nanocrystal (CNC)-doped CeO2 quantum dots (QDs) with highly efficient catalytic performance were synthesized using one pot co-precipitation technique, which were then applied in the degradation of methylene blue and ciprofloxacin (MBCF) in wastewater. Catalytic activity against MBCF dye was significantly reduced (99.3%) for (4%) Ag dopant concentration in acidic medium. For Ag/CNC-doped CeO2 vast inhibition domain of G-ve was significantly confirmed as (5.25-11.70 mm) and (7.15-13.60 mm), while medium- to high-concentration of CNC levels were calculated for G + ve (0.95 nm, 1.65 mm), respectively. Overall, (4%) Ag/CNC-doped CeO2 revealed significant antimicrobial activity against G-ve relative to G + ve at both concentrations, respectively. Furthermore, in silico molecular docking studies were performed against selected enzyme targets dihydrofolate reductase (DHFR), dihydropteroate synthase (DHPS), and DNA gyrase belonging to folate and nucleic acid biosynthetic pathway, respectively to rationalize possible mechanism behind bactericidal potential of CNC-CeO2 and Ag/CNC-CeO2.
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Affiliation(s)
- M Ikram
- Solar Cell Application Research Lab, Department of Physics, Government College University Lahore, Lahore 54000, Punjab, Pakistan.
| | - S Hayat
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - M Imran
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Centre for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, China
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan
| | - S Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - A Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia.
| | - I Shahzadi
- College of Pharmacy, University of the Punjab, 54000 Lahore, Pakistan
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - A Shahzadi
- College of Pharmacy, University of the Punjab, 54000 Lahore, Pakistan
| | - W Nabgan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
| | - S Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
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Driouch J, Braumann C, Dehnst J, Ikram M, Alnammous G, Bausch D, Glatz T. [Results of the Limberg flap procedure in acute and chronic pilonidal abscesses]. Chirurg 2021; 93:182-189. [PMID: 34132822 PMCID: PMC8821484 DOI: 10.1007/s00104-021-01439-0] [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] [Accepted: 05/11/2021] [Indexed: 12/01/2022]
Abstract
Hintergrund In der Behandlung des Sinus pilonidalis werden unterschiedliche Therapiealgorithmen für den akuten sowie den chronischen Sinus pilonidalis empfohlen. Während sich beim chronischen Sinus pilonidalis ein einzeitiges Vorgehen als Exzision oder plastische Rekonstruktion nach Limberg oder Karydakis anbietet, ist die empfohlene Vorgehensweise beim akuten Pilonidalabszess zweizeitig. Ziel dieser Studie war es, die Ergebnisse der einzeitigen Operation mit Limberg-Plastik bei akutem Pilonidalabszess und chronischem Sinus pilonidalis bezogen auf Rezidive, Wundheilungsstörungen, stationärer Liegedauer sowie Patientenzufriedenheit zu vergleichen. Methoden Von 2009 bis 2014 wurden 39 Patienten in die prospektive Beobachtungsstudie eingeschlossen. 21 Patienten mit akutem Pilonidalabszess, 18 mit chronischem Sinus pilonidalis. Alle Patienten wurden einzeitig mittels Limberg-Rautenplastik operativ behandelt. Die Gruppen wurden in Bezug auf postoperative Komplikationsrate und Rezidivhäufigkeit miteinander verglichen. Ergebnisse Beide Gruppen waren im Wesentlichen vergleichbar. Die Analyse der postoperativen Ergebnisse zeigte eine vergleichbare Rate an Wundheilungsstörungen (10 % vs. 17 %, p = 0,647). In der Gruppe des akut abszedierten Sinus trat kein Rezidiv im Beobachtungszeitraum auf, während sich in der chronischen Gruppe 2 (11 %) Rezidive zeigten (p = 0,206). Diskussion Die Ergebnisse der Limberg-Plastik als einzeitige Therapie des Pilonidalabszesses sind mit denen beim chronischen Sinus pilonidalis vergleichbar. Es zeigt sich ein Trend zu einem geringeren Rezidivrisiko. Der Einsatz der Limberg-Plastik scheint daher auch in der akuten Infektsituation eine adäquate Therapieoption.
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Affiliation(s)
- Jamal Driouch
- Chirurgische Klinik - Allgemein- und Viszeralchirurgie, Gefäßchirurgie, Marien Hospital Herne - Universitätsklinikum, Ruhr-Universität Bochum, Hölkeskampring 40, 44625, Herne, Deutschland.
| | - C Braumann
- Klinik für Chirurgie, St. Josef Hospital Bochum, Ruhr-Universität Bochum, Gudrunstraße 56, 44791, Bochum, Deutschland
| | - J Dehnst
- Klinik für Chirurgie, Paracelsus-Klinik Hemer, Breddestraße 22, 58675, Hemer, Deutschland
| | - M Ikram
- Klinik für Chirurgie, Paracelsus-Klinik Hemer, Breddestraße 22, 58675, Hemer, Deutschland
| | - G Alnammous
- Klinik für Chirurgie, Paracelsus-Klinik Hemer, Breddestraße 22, 58675, Hemer, Deutschland
| | - D Bausch
- Chirurgische Klinik - Allgemein- und Viszeralchirurgie, Gefäßchirurgie, Marien Hospital Herne - Universitätsklinikum, Ruhr-Universität Bochum, Hölkeskampring 40, 44625, Herne, Deutschland
| | - T Glatz
- Chirurgische Klinik - Allgemein- und Viszeralchirurgie, Gefäßchirurgie, Marien Hospital Herne - Universitätsklinikum, Ruhr-Universität Bochum, Hölkeskampring 40, 44625, Herne, Deutschland
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Tlili S, Ikram M, Ghabi H, Mariem B, Ben Kaab B, Ben H, Benfatma L, Raïs L, Zouaghi M. Microangiopathie thrombotique et glomérulonéphrite lupique : particularités cliniques et résultats. Rev Med Interne 2021. [DOI: 10.1016/j.revmed.2021.03.111] [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: 10/21/2022]
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Ikram M, Inayat T, Haider A, Ul-Hamid A, Haider J, Nabgan W, Saeed A, Shahbaz A, Hayat S, Ul-Ain K, Butt AR. Graphene Oxide-Doped MgO Nanostructures for Highly Efficient Dye Degradation and Bactericidal Action. Nanoscale Res Lett 2021; 16:56. [PMID: 33825981 PMCID: PMC8026802 DOI: 10.1186/s11671-021-03516-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 03/24/2021] [Indexed: 05/30/2023]
Abstract
Various concentrations (0.01, 0.03 and 0.05 wt ratios) of graphene oxide (GO) nanosheets were doped into magnesium oxide (MgO) nanostructures using chemical precipitation technique. The objective was to study the effect of GO dopant concentrations on the catalytic and antibacterial behavior of fixed amount of MgO. XRD technique revealed cubic phase of MgO, while its crystalline nature was confirmed through SAED profiles. Functional groups presence and Mg-O (443 cm-1) in fingerprint region was evident with FTIR spectroscopy. Optical properties were recorded via UV-visible spectroscopy with redshift pointing to a decrease in band gap energy from 5.0 to 4.8 eV upon doping. Electron-hole recombination behavior was examined through photoluminescence (PL) spectroscopy. Raman spectra exhibited D band (1338 cm-1) and G band (1598 cm-1) evident to GO doping. Formation of nanostructure with cubic and hexagon morphology was confirmed with TEM, whereas interlayer average d-spacing of 0.23 nm was assessed using HR-TEM. Dopants existence and evaluation of elemental constitution Mg, O were corroborated using EDS technique. Catalytic activity against methyl blue ciprofloxacin (MBCF) was significantly reduced (45%) for higher GO dopant concentration (0.05), whereas bactericidal activity of MgO against E. coli was improved significantly (4.85 mm inhibition zone) upon doping with higher concentration (0.05) of GO, owing to the formation of nanorods.
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Affiliation(s)
- M Ikram
- Solar Cell Application Research Lab, Department of Physics, Government College University Lahore, Lahore, 54000, Punjab, Pakistan.
| | - T Inayat
- Physics Department, Lahore Garrison University, Lahore, 54000, Punjab, Pakistan
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore, 54000, Punjab, Pakistan
| | - A Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - W Nabgan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - A Saeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - A Shahbaz
- Department of Physics, Government College University Lahore, 54000, Lahore, Pakistan
| | - S Hayat
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - K Ul-Ain
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - A R Butt
- Physics Department, Lahore Garrison University, Lahore, 54000, Punjab, Pakistan
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Syrine T, Lilia B, Mariem B, Hiba G, Lamia R, Hela J, Badreddine K, Ikram M, Karim Z. POS-363 new onset - diabetes mellitus Within 1 Year After Kidney Transplantation in Tunisian Cohort Study:risk factors. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.380] [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: 11/28/2022] Open
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MARIEM B, Hela J, Ikram M, Syrine T, Hiba G, Lamia R, Mohamed Karim Z, Fethi B. POS-456 NEPHROTIC SYNDROME, MUCOSA ASSOCIATED LYMPHOID TISSUE LYMPHOMA, AND MIXED CONNECTIVE TISSUE DISEASE: A CASE REPORT OF AN UNUSUAL ASSOCIATION. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.482] [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: 10/21/2022] Open
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MARIEM B, Ikram M, Hela J, Syrine T, Hiba G, Lamia R, Mohamed K, Fethi B. POS-200 SARCOID TUBULO-INTERSTITIAL NEPHRITIS: A REVIEW OF SIX CASES AT ONE CENTER. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.213] [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: 11/26/2022] Open
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MARIEM B, Hela J, Ikram M, Syrine T, Hiba G, Lamia R, Mohamed Karim Z, Fethi B. POS-201 INFECTIOUS COLITIS DEVELOPING IN TWO PATIENTS NEWLY DIAGNOSED WITH MULTIPLE MYELOMA. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.214] [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: 10/21/2022] Open
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SYRINE T, Lilia B, Mariem B, Hiba G, Lamia R, Badreddine K, Ikram M, Karim Z. POS-119 Factors That Influence Delayed Graft Function in Kidney Transplants: A Single-Center Paired Kidney Analysis. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.127] [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: 10/21/2022] Open
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SYRINE T, Ikram M, Mariem B, Hiba G, Hela J, Lilia B, Lamia R, Karim Z. POS-116 CLINICAL OUTCOMES IN ANCA ASSOCIATED VASUTITIS WITH GASTROINTESTINAL INVOLVEMENT. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.124] [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: 10/21/2022] Open
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Qumar U, Hassan J, Naz S, Haider A, Raza A, Ul-Hamid A, Haider J, Shahzadi I, Ahmad I, Ikram M. Silver decorated 2D nanosheets of GO and MoS 2serve as nanocatalyst for water treatment and antimicrobial applications as ascertained with molecular docking evaluation. Nanotechnology 2021; 32:255704. [PMID: 33556921 DOI: 10.1088/1361-6528/abe43c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 11/28/2020] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
In this work, synthesis of graphene oxide (GO) and reduced graphene oxide (rGO) was realized through a modified Hummers route. Different concentrations (5 and 10 wt%) of Ag were doped in MoS2and rGO using a hydrothermal technique. Synthesized Ag-MoS2and Ag-rGO were evaluated through XRD that confirmed the hexagonal structure of MoS2along with the transformation of GO to Ag-rGO as indicated by a shift in XRD peaks while Mo-O bonding and S=O functional groups were confirmed with FTIR. Morphological information of GO and formation of MoS2nanopetals as well as interlayer spacing were verified through FESEM and HRTEM respectively. Raman analysis was employed to probe any evidence regarding defect densities of GO. Optical properties of GO, MoS2, Ag-rGO, and Ag-MoS2were visualized through UV-vis and PL spectroscopy. Prepared products were employed as nanocatalysts to purify industrial wastewater. Experimental results revealed that Ag-rGO and Ag-MoS2showed 99% and 80% response in photocatalytic activity. Besides, the nanocatalyst (Ag-MoS2and Ag-rGO) exhibited 6.05 mm inhibition zones againstS. aureusgram positive (G+) and 3.05 mm forE. coligram negative (G-) in antibacterial activity. To rationalize biocidal mechanism of Ag-doped MoS2NPs and Ag-rGO,in silicomolecular docking study was employed for two enzymes i.e.β-lactamase and D-alanine-D-alanine ligase B (ddlB) from cell wall biosynthetic pathway and enoyl-[acylcarrier-protein] reductase (FabI) from fatty acid biosynthetic pathway belonging toS. aureus. The present study provides evidence for the development of cost-effective, environment friendly and viable candidate for photocatalytic and antimicrobial applications.
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Affiliation(s)
- U Qumar
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - J Hassan
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - S Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, People's Republic of China
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan
| | - A Raza
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, People's Republic of China
| | - I Shahzadi
- College of Pharmacy, University of the Punjab, Lahore, 54000, Pakistan
| | - I Ahmad
- Department of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, 54000, Punjab, Pakistan
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SYRINE T, Ikram M, Mariem B, Hiba G, Badreddine K, Hela J, Lilia B, Fathi B, Lamia R, Karim Z. POS-117 PREDICTORS OF END STAGE RENAL DISEASE IN LUPUS NEPHRITIS. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.125] [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: 10/21/2022] Open
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Iftikhar H, Ikram M. Coiling of internal carotid through 'eye of the needle' internal jugular vein: a dual great vessel anomaly. Ann R Coll Surg Engl 2021; 103:e156-e158. [PMID: 33682429 DOI: 10.1308/rcsann.2020.7074] [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] [Indexed: 11/22/2022] Open
Abstract
A variation in the usual course of great vessels during neck dissection can predispose them to inadvertent iatrogenic injury, which can lead to massive bleeding. We present a case of a male patient with oral squamous cell carcinoma who underwent inferior maxillectomy and supra-omohyoid neck dissection. Lateral coiling of the extracranial internal carotid artery was seen through fenestration of the internal jugular vein. Anomalies of great vessels in the neck are rare. Variation in the course of any of these vessels can prove to be catastrophic if control is not achieved. Careful study of radiographic imaging with special consideration given to the course of great vessels in the neck should be undertaken prior to neck surgeries.
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Affiliation(s)
- H Iftikhar
- Aga Khan University Hospital, Karachi, Pakistan
| | - M Ikram
- Aga Khan University Hospital, Karachi, Pakistan
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Arian MB, Ikram M, Jani Y, Khan A, Khan A, Khan I, Michalski G, Naeem M, Shah M, Subhan F, ul Haq H, Vincevica-Gaile Z, Zahoor M, Zeeshan S, Zekker I. Multivariate statistical analysis of heavy metals and physico-chemical parameters in the groundwater of Karak District, Khyber Pakhtunkhwa, Pakistan. Proceedings of the Estonian Academy of Sciences 2021. [DOI: 10.3176/proc.2021.3.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Mahmood R, Khurshid A, Yousaf MS, Aalam M, Salman M, Ikram M. Effect of vitamin A as a neoadjuvant agent in chemotherapy and photodynamic therapy of Rhabdomyosarcoma cells. Photodiagnosis Photodyn Ther 2020; 32:102088. [PMID: 33157333 DOI: 10.1016/j.pdpdt.2020.102088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 08/21/2020] [Revised: 10/21/2020] [Accepted: 10/30/2020] [Indexed: 10/23/2022]
Abstract
Combinational therapy is among the most used treatment modality's to increase cancer treatment efficacy. It may also reduce side effects, treatment time, and development of drug resistance. The effects of different analogues of vitamin A (VA) as neoadjuvant agent were observed in this study with chemotherapeutic drugs (doxorubicin and methotrexate) and photodynamic therapy (PDT) using 5-ALA and Photogem as photosensitizers in RD cells. The uptake time of photosensitizer was optimized by means of spectrophotometric measurements. Diode laser (λ = 635 nm ± 1 nm) was used as an illumination source for PDT. Responses of administered drugs were assessed by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. VA and its analogues exert prophylactic and therapeutic effects. Protective or antagonistic effects (CI > 1) were observed in each of the case. These results propose that the use of VA as a neoadjuvant agent in combinational therapeutic modalities may reduce the efficacy of cancer treatment protocols as well as the existing side effects. Thus, VA is not the successful drug for combinational therapies and under treatment cancer patients should try to avoid its use with oxidative stress induction therapies (e.g. PDT, Radiotherapy, chemotherapy).
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Affiliation(s)
- R Mahmood
- Photomedicine Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan.
| | - A Khurshid
- Photomedicine Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan; Biophotonics Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan
| | - M S Yousaf
- Photomedicine Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan
| | - M Aalam
- Department of Virology and Immunology, National Institute of Health, Park Road, Islamabad, Pakistan
| | - M Salman
- Department of Virology and Immunology, National Institute of Health, Park Road, Islamabad, Pakistan
| | - M Ikram
- Photomedicine Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan; Biophotonics Research Laboratory, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan
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Altaf S, Ijaz H, Haider J, Naz M, Aqeel M, Ul-Hamid A, Ikram M, Zulfiqar S, Ditta SA, Shahbaz A, Ikram M. Influence of various transition metals incorporated into tellurium used as antimicrobial agent and textile dye degrader. Appl Nanosci 2020. [DOI: 10.1007/s13204-020-01547-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Zhu F, Arshi B, Ikram M, De Knegt R, Kavousi M. Sex-specific reference values and determinants of infra-renal abdominal aortic diameter among women and men from general population. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2841] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Abdominal aortic diameter has shown to be a marker of adverse cardiovascular outcomes. Among the non-aneurysmal populations, studies regarding abdominal aortic diameter normal reference values are sparse. Moreover, data regarding the associations between cardiovascular risk factors and aortic diameter among men and women are limited.
Purpose
To establish age- and sex-specific distribution of the infra-renal abdominal aortic diameters among non-aneurysmal older adults from the general population and to investigate the associations between cardiovascular risk factors and aortic diameters in men and women.
Methods
From a population-based cohort, 4032 participants (mean age, 67.2 years; 60.4% women) with infra-renal diameter assessment and without history of cardiovascular disease were included. Mean and quantile values of diameters were calculated in different age groups. Multiple linear regression analysis was used to detect the association of cardiovascular risk factors with diameters in men and women.
Results
The mean crude diameter was larger in men [mean (SD): 19.5 (2.6) mm] compared to women [17.0 (2.4)mm] but after adjustment for body surface area (BSA), the differences were small. There was a non-linear relationship between age and diameter (p<0.001). After 66 years of age, the increase in diameter with increasing age was attenuated. After age 74 years in women and 71 years in men, the relationship between age and infra-renal aortic diameter was no longer statistically significant (Figure). Waist [standardized β (95% CI): 0.02 (0.0–0.04) in women and 0.03 (0.01–0.06) in men] and diastolic blood pressure [0.04 (0.02–0.05) in women and 0.02 (0.0–0.04) in men] were the risk factors for diameters in both sexes. Body mass index [0.02 (0.01–0.09)], systolic blood pressure [−0.01 (−0.02 to −0.01)], smoking status [0.21 (0.02–0.39)], cholesterol [−0.19 (−0.29 to −0.09)], and lipid-lowering medication [−0.47 (−0.71 to −0.23)] were significantly associated with aortic diameter only in women.
Conclusion
The differences in the crude abdominal aortic diameter between women and men diminished after taking into account the BSA. The abdominal aortic diameter increased steeply with advancing age and up to 66 years of age. However, after 74 years in women and 71 years in men, the diameter values reached a plateau. We also observed sex differences in the associations of cardiovascular risk factors with abdominal aortic diameter.
Funding Acknowledgement
Type of funding source: Public Institution(s). Main funding source(s): Netherlands Organization for the Health Research and Development (ZonMw); the Research Institute for Diseases in the Elderly (RIDE)
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Affiliation(s)
- F Zhu
- Erasmus University Medical Centre, Rotterdam, Netherlands (The)
| | - B Arshi
- Erasmus University Medical Centre, Rotterdam, Netherlands (The)
| | - M Ikram
- Erasmus University Medical Centre, Rotterdam, Netherlands (The)
| | - R De Knegt
- Erasmus University Medical Centre, Rotterdam, Netherlands (The)
| | - M Kavousi
- Erasmus University Medical Centre, Rotterdam, Netherlands (The)
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Altaf S, Haider A, Naz S, Ul-Hamid A, Haider J, Imran M, Shahzadi A, Naz M, Ajaz H, Ikram M. Comparative Study of Selenides and Tellurides of Transition Metals (Nb and Ta) with Respect to its Catalytic, Antimicrobial, and Molecular Docking Performance. Nanoscale Res Lett 2020; 15:144. [PMID: 32643064 PMCID: PMC7343698 DOI: 10.1186/s11671-020-03375-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/23/2020] [Indexed: 05/13/2023]
Abstract
The present research is a comparative study that reports an economical and accessible method to synthesize niobium (Nb) and Tantalum (Ta) selenides and tellurides with useful application in the removal of pollutants in textile, paper, and dyeing industries as well as in medical field. In this study, solid-state process was used to generate nanocomposites and various characterization techniques were employed to compare two groups of materials under investigation. Structure, morphology, elemental constitution, and functional groups of synthesized materials were analyzed with XRD, FESEM coupled with EDS, FTIR, and Raman spectroscopy, respectively. HR-TEM images displayed nanoscale particles with tetragonal and monoclinic crystal structures. The optical properties were evaluated in terms of cut-off wavelength and optical band gap using UV-visible spectroscopy. A comparative behavior of both groups of compounds was assessed with regards to their catalytic and microcidal properties. Extracted nanocomposites when used as catalysts, though isomorphs of each other, showed markedly different behavior in catalytic degradation of MB dye in the presence of NaBH4 that was employed as a reducing agent. This peculiar deviation might be attributed to slight structural differences between them. Escherichia coli and Staphylococcus aureus (G -ve and + ve bacteria, respectively) were designated as model strains for in vitro antibacterial tests of both clusters by employing disk diffusion method. Superior antibacterial efficacy was observed for telluride system (significant inhibition zones of 26-35 mm) compared with selenide system (diameter of inhibition zone ranged from 0.8 mm to 1.9 mm). In addition, molecular docking study was undertaken to ascertain the binding interaction pattern between NPs and active sites in targeted cell protein. The findings were in agreement with antimicrobial test results suggesting NbTe4 to be the best inhibitor against FabH and FabI enzymes.
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Affiliation(s)
- S Altaf
- Department of Chemistry, University of Engineering and Technology, Lahore, 54000, Pakistan
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore, Punjab, 54000, Pakistan
| | - S Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - M Imran
- State key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing, 100029, China
| | - A Shahzadi
- University College of Pharmacy, University of the Punjab, Lahore, 54000, Pakistan
| | - M Naz
- Biochemistry Lab, Department of Chemistry, Government College University, Lahore, Punjab, 54000, Pakistan
| | - H Ajaz
- Department of Chemistry, University of Engineering and Technology, Lahore, 54000, Pakistan
| | - M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University, Lahore, Punjab, 54000, Pakistan.
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Ikram M, Umar E, Raza A, Haider A, Naz S, Ul-Hamid A, Haider J, Shahzadi I, Hassan J, Ali S. Dye degradation performance, bactericidal behavior and molecular docking analysis of Cu-doped TiO 2 nanoparticles. RSC Adv 2020; 10:24215-24233. [PMID: 35516171 PMCID: PMC9055104 DOI: 10.1039/d0ra04851h] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [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: 06/01/2020] [Accepted: 06/18/2020] [Indexed: 11/21/2022] Open
Abstract
Copper-doped TiO2 was prepared with a sol-gel chemical method. Various concentrations (3, 6, and 9 wt%) of Cu dopant were employed. Several techniques were implemented to assess the structural, optical, morphological and chemical properties of the synthesized samples. Evaluation of elemental composition using SEM-EDS and XRF techniques showed the presence of dopant element in the prepared samples. XRD analysis confirmed the presence of anatase (TiO2) phase with interstitial doping. Incorporation of dopant was observed to enhance the crystallinity and increase the crystallite size of the synthesized products. SAED profiles revealed a high degree of crystallinity in the prepared specimens, which was also evident in the XRD spectra. Optical properties studied using UV-vis spectroscopy depicted a shift of the maximum absorption to the visible region (redshift) that signified a reduction in the band gap energy of Cu-doped TiO2 samples. Examination of morphological features with scanning and high-resolution transmission electron microscopes revealed the formation of spherical nanoparticles with a tendency to agglomerate with increasing dopant concentration. Molecular vibrations and the formation of Ti-O-Ti bonds were revealed through FTIR spectra. PL spectroscopy recorded the trapping efficiency and migration of charge carriers, which exhibited electron-hole recombination behavior. Doped nanostructures showed enhanced bactericidal performance and synergism against S. aureus and E. coli. In summary, Cu-doped TiO2 nanostructures were observed to impede bacteria effectively, which is deemed beneficial in overcoming ailments caused by pathogens such as microbial etiologies. Furthermore, molecular docking analysis was conducted to study the interaction of Cu-doped TiO2 nanoparticles with multiple proteins namely β-lactamase (binding score: -4.91 kcal mol-1), ddlB (binding score: -5.67 kcal mol-1) and FabI (binding score: -6.13 kcal mol-1) as possible targets with active site residues. Dye degradation/reduction of control and Cu-doped samples were studied through absorption spectroscopy. The obtained outcomes of the performed experiment indicated that the photocatalytic activity of Cu-TiO2 enhanced with increasing dopant concentration, which is thought to be due to a decreased rate of electron-hole pair recombination. Consequently, it is suggested that Cu-TiO2 can be exploited as an effective candidate for antibacterial and dye degradation applications.
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Affiliation(s)
- M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore Punjab 54000 Pakistan +923005406667
| | - E Umar
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - A Raza
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences Lahore 54000 Punjab Pakistan
| | - S Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences Tianjin 300308 China
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences Tianjin 300308 China
| | - I Shahzadi
- College of Pharmacy, University of the Punjab Lahore 54000 Pakistan
| | - J Hassan
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - S Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
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Raza A, Qumar U, Hassan J, Ikram M, Ul-Hamid A, Haider J, Imran M, Ali S. A comparative study of dirac 2D materials, TMDCs and 2D insulators with regard to their structures and photocatalytic/sonophotocatalytic behavior. Appl Nanosci 2020. [DOI: 10.1007/s13204-020-01475-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Ali M, Ikram M, Ijaz M, Ul-Hamid A, Avais M, Anjum AA. Green synthesis and evaluation of n-type ZnO nanoparticles doped with plant extract for use as alternative antibacterials. Appl Nanosci 2020. [DOI: 10.1007/s13204-020-01451-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Qumar U, Ikram M, Imran M, Haider A, Ul-Hamid A, Haider J, Riaz KN, Ali S. Synergistic effect of Bi-doped exfoliated MoS 2 nanosheets on their bactericidal and dye degradation potential. Dalton Trans 2020; 49:5362-5377. [PMID: 32255457 DOI: 10.1039/d0dt00924e] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Nanosheets incorporated with biological reducing agents are widely used to minimize the toxic effects of chemicals. Biologically amalgamated metal oxide nanomaterials have crucial importance in nanotechnology. In this study, bare and bismuth (Bi)-doped molybdenum disulfide (MoS2) nanosheets were synthesized via a hydrothermal method. Different Bi weight ratios of 2.5, 5, 7.5 and 10% were incorporated in a fixed amount of MoS2 to evaluate its catalytic and antimicrobial activities. Doped nanosheets were characterized using XRD, FTIR and UV-vis spectroscopy, FESEM, HRTEM, Raman, PL, DSC/TGA, EDX, XRF and XPS analysis. The XRD spectra confirmed that the doped nanosheets exhibit a hexagonal structure and their crystallite size increases gradually upon doping. The morphology and interlayer d-spacing of doped MoS2 were determined by FESEM and HRTEM. The presence of functional groups in the doped nanosheets was confirmed using FTIR, PL and Raman analysis. The absorption intensity increased and the corresponding measured band gap energy decreased with doping. The thermal stability and weight loss behaviour of the prepared samples were studied using DSC/TGA. The doped MoS2 nanosheets showed a higher catalytic potential compared to undoped MoS2. The doped Bi nanosheets exhibited higher antimicrobial activity against Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli) at different concentrations of Bi (0.075 and 0.1), showing a tendency to counter the emerging drug resistance against pathogenic bacterial diseases. Consequently, significant inhibition zones were recorded against (MDR) S. aureus ranging from 2.25 to 3.3 mm and 3.25 to 5.05 mm at low and high concentrations of doped-Bi nanosheets and against Gram-negative E. coli ranging from 1 to 1.45 mm at high concentrations. In conclusion, the Bi-doped MoS2 nanocomposite has exhibited significant potential for use in industrial dye degradation applications. Its antibacterial properties can also mitigate health risks associated with the presence of several well-known pathogens in the environment.
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Affiliation(s)
- U Qumar
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, 54000, Punjab, Pakistan. and Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, 54000, Punjab, Pakistan.
| | - M Imran
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, China
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences Lahore, 54000, Punjab, Pakistan
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - K N Riaz
- Department of Physics, University of Gujrat, HH Campus, Gujrat, 50700, Pakistan
| | - S Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
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Ikram M, Jahan I, Haider A, Hassan J, Ul-Hamid A, Imran M, Haider J, Shahzadi A, Shahbaz A, Ali S. Bactericidal behavior of chemically exfoliated boron nitride nanosheets doped with zirconium. Appl Nanosci 2020; 10:2339-2349. [PMID: 32341906 PMCID: PMC7183257 DOI: 10.1007/s13204-020-01412-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 03/21/2020] [Accepted: 04/12/2020] [Indexed: 12/13/2022]
Abstract
In this work, boron nitride nanosheets (BNNS) were produced through chemical exfoliation of bulk boron nitride (BN). Furthermore, hydrothermal technique was used to incorporate various concentrations (2.5, 5, 7.5, and 10 wt%) of zirconium (Zr) as a dopant. The prepared undoped and doped BN samples were evaluated for its antimicrobial activity against E. coli and S. aureus. Structural analysis was undertaken using x-ray diffraction which identified the presence of hexagonal BN. FTIR and Raman spectroscopy were utilized to outline IR fingerprint and electronic properties of the synthesized material. Morphological information was obtained through micrographs extracted using field emission scanning electron spectroscope (FESEM) and high resolution transmission electron microscope (HRTEM), while d-spacing was also calculated through HRTEM analysis. Optical properties and emission spectra were examined by applying UV–vis and photoluminescence spectroscope (PL); whereas, band gap analysis was carried out via Tauc plot. Zr-doped BN nanosheets at increasing concentrations (0.5, 1.0 mg/50 μl) revealed enhanced antibacterial activity against E. coli compared to S. aureus (p < 0.05).
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Affiliation(s)
- M Ikram
- 1Solar Cell Applications Research Laboratory, Department of Physics, Government College University Lahore, Punjab, 54000 Pakistan
| | - I Jahan
- 1Solar Cell Applications Research Laboratory, Department of Physics, Government College University Lahore, Punjab, 54000 Pakistan.,2Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - A Haider
- 3Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, LahorePunjab, 54000 Pakistan
| | - J Hassan
- 2Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - A Ul-Hamid
- 4Centre for Engineering Research, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| | - M Imran
- 5State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Centre for Hierarchical Catalysts, Beijing, 100029 China
| | - J Haider
- 6Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308 China
| | - A Shahzadi
- 7University College of Pharmacy, University of the Punjab, Lahore, 54000 Pakistan
| | - A Shahbaz
- 8Department of Physics, Government College University Lahore, Punjab, 54000 Pakistan
| | - S Ali
- 2Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
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Ikram M, Abbasi S, Haider A, Naz S, Ul-Hamid A, Imran M, Haider J, Ghaffar A. Bimetallic Ag/Cu incorporated into chemically exfoliated MoS 2 nanosheets to enhance its antibacterial potential: in silico molecular docking studies. Nanotechnology 2020; 31:275704. [PMID: 32182604 DOI: 10.1088/1361-6528/ab8087] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Bimetallic Ag and Cu (1:1 wt%) nanoparticles (NPs) were synthesized and annealed at temperatures of 400 °C, 600 °C, and 800 °C using chemical reduction techniques. High temperature annealed (at 800 °C) Ag:Cu sample ratios (5 and 10 wt%) were used to dope MoS2. A wide variety of techniques including X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning, high resolution transmission electron microscopy, differential scanning calorimetry, thermogravimetric analysis, Raman, photoluminescence, and ultraviolet visible spectrophotometry were used to study the morphology, structure, functional groups, excitons recombination, and thermal and optical properties of both annealed and doped samples. The antimicrobial activity of the prepared products was tested on the MRSA-superbug with ciprofloxacin antibiotic as the reference drug. Statistically significant (P < 0.05) inhibition zones (mm) were recorded for the as-synthesized Ag-Cu, heat-treated samples at 400 °C, 600 °C, and 800 °C, doped Ag-Cu/MoS2 5% and Ag-Cu/MoS2 10% which ranged from 6.35-9.85 mm and 8.60-11.75 mm at (0.5, 1.0 mg 50 μl-1) concentrations compared with ciprofloxacin 12.55 mm and DIW 0 mm inhibition zones, respectively. Overall Ag-Cu NPs alone and with different temperature treatments showed less antibacterial efficacy compared with Ag-Cu/MoS2 5% and 10%. Furthermore, molecular docking studies were employed to unveil the binding interaction pattern of NPs in the active pocket of β-lactamase enzyme suggested that it could be a potential inhibitor that could be further evaluated for its enzyme inhibition characteristics.
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Affiliation(s)
- M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Punjab 54000 Pakistan
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Hassan J, Ikram M, Ul-Hamid A, Imran M, Aqeel M, Ali S. Application of Chemically Exfoliated Boron Nitride Nanosheets Doped with Co to Remove Organic Pollutants Rapidly from Textile Water. Nanoscale Res Lett 2020; 15:75. [PMID: 32266606 PMCID: PMC7138897 DOI: 10.1186/s11671-020-03315-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 03/30/2020] [Indexed: 05/26/2023]
Abstract
Two-dimensional layered materials doped with transition metals exhibit enhanced magnetization and improved catalytic stability during water treatment leading to potential environmental applications across several industrial sectors. In the present study, cobalt (Co)-doped boron nitride nanosheets (BN-NS) were explored for such an application. Chemical exfoliation process was used to exfoliate BN-NS and the hydrothermal route was adopted to incorporate Co dopant in various concentrations (e.g., 2.5, 5, 7.5, and 10 wt%). X-ray diffraction (XRD) study indicated that crystallinity improved upon doping with the formation of a hexagonal phase of the synthesized material. Selected area electron diffraction (SAED) confirmed enhanced crystallinity, which corroborates XRD results. Interlayer spacing was evaluated through a high-resolution transmission electron microscope (HR-TEM) equipped with Gatan digital micrograph software. Compositional and functional group analysis was undertaken with energy dispersive X-ray (EDS) and Fourier transform infrared (FTIR) spectroscopy, respectively. Field emission scanning electron microscope (FE-SEM) and HR-TEM were utilized to probe surface morphologies of prepared samples. Bonding modes in the sample were identified through Raman analysis. Optical properties were examined using UV-vis spectroscopy. Photoluminescence spectra were acquired to estimate the separation and recombination of excitons. Magnetic properties were studied by means of hysteresis loop acquired using VSM measurements. Methylene blue dye was degraded with as-prepared host and doped nanosheets used as catalysts and investigated through absorption spectra ranging from 250 to 800 nm. The experimental results of this study indicate that Co-doped BN-NS showed enhanced magnetic properties and can be used to degrade dyes present as an effluent in industrial wastewater.
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Affiliation(s)
- J. Hassan
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, Punjab 54000 Pakistan
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - M. Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, Punjab 54000 Pakistan
| | - A. Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261 Saudi Arabia
| | - M. Imran
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing, 100029 China
| | - M. Aqeel
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, Punjab 54000 Pakistan
| | - S. Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
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Altaf S, Ajaz H, Imran M, Ul-Hamid A, Naz M, Aqeel M, Shahzadi A, Shahbaz A, Ikram M. Synthesis and characterization of binary selenides of transition metals to investigate its photocatalytic, antimicrobial and anticancer efficacy. Appl Nanosci 2020. [DOI: 10.1007/s13204-020-01350-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Aqeel M, Ikram M, Imran M, Ul-Hamid A, Qumar U, Shahbaz A, Ikram M, Saeed A. TiO2 Co-doped with Zr and Ag shows highly efficient visible light photocatalytic behavior suitable for treatment of polluted water. RSC Adv 2020; 10:42235-42248. [PMID: 35516777 PMCID: PMC9057920 DOI: 10.1039/d0ra08718a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 11/10/2020] [Indexed: 11/28/2022] Open
Abstract
The objective of this study is to analyze the effects of zirconium (Zr) and silver (Ag) doping on the photoactivity of titania (TiO2). Zr–Ag (ZA) co-doped TiO2 products were fabricated via sol–gel technique and their properties (structural and chemical) were characterized. The weight ratio of TiO2 was fixed, while weight ratios of Zr and Ag were varied from 2 to 4, 6 and 8 wt% while synthesized samples were calcined at 400 °C for 3 h. The XRD results demonstrated that the incorporation of metal doping agents failed to alter the host material's lattice structure, however, its crystallite size was reduced from 13.54 to 5.05 nm with increasing Zr4+ and Ag+ concentrations. FTIR spectroscopy was used to examine various functional groups. In the attained spectra, an ample absorption peak between 500 and 1000 cm−1 was recorded, which was ascribed to Ti–O–Ti linkage vibration mode present within TiO2. Surface morphology, microstructure, SAED patterns and elemental composition were examined with FE-SEM, HR-TEM and EDX, which served to confirm the ZA-doped TiO2 product. Band gap energy of the co-doped material was significantly reduced as indicated by a higher wavelength redshift in the spectra. The photoactivity and kinetics of photo-products were investigated by observing photo-decolorization of methylene blue (MB) under a radiation source. Photodecomposition of MB was dramatically enhanced when titania co-doped with Zr and Ag was employed compared to un-doped or mono-doped TiO2. The ZA (8 wt%) co-doped TiO2 photocatalyst depicted the maximum MB removal efficiency (∼93%) within 90 min under a light source. The objective of this study is to analyze the effects of zirconium (Zr) and silver (Ag) doping on the photoactivity of titania (TiO2).![]()
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Affiliation(s)
- M. Aqeel
- Solar Cell Applications Research Lab
- Department of Physics
- Government College University Lahore
- Paksitan
| | - M. Ikram
- Solar Cell Applications Research Lab
- Department of Physics
- Government College University Lahore
- Paksitan
| | - M. Imran
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Centre for Soft Matter Science and Engineering
- Beijing Engineering Center for Hierarchical Catalysts
- Beijing University of Chemical Technology
- Beijing 100029
| | - A. Ul-Hamid
- Center for Engineering Research
- Research Institute
- King Fahd University of Petroleum & Minerals
- Dhahran 31261
- Saudi Arabia
| | - U. Qumar
- Department of Physics
- Riphah Institute of Computing and Applied Sciences (RICAS)
- Riphah International University
- Lahore
- Pakistan
| | - A. Shahbaz
- Department of Physics
- Government College University Lahore
- Pakistan
| | - M. Ikram
- Institute of Chemical Engineering and Technology (ICET)
- University of the Punjab
- Lahore 54000
- Pakistan
| | - A. Saeed
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
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Ikram M, Tabassum R, Qumar U, Ali S, Ul-Hamid A, Haider A, Raza A, Imran M, Ali S. Promising performance of chemically exfoliated Zr-doped MoS2 nanosheets for catalytic and antibacterial applications. RSC Adv 2020; 10:20559-20571. [PMID: 35517731 PMCID: PMC9054312 DOI: 10.1039/d0ra02458a] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/23/2020] [Indexed: 12/24/2022] Open
Abstract
Nanostructured materials incorporated with biological reducing agents have shown significant potential for use in bactericidal applications. Such materials have also demonstrated considerable efficacy to counter effects of chemical toxicity. In this study, nanostructured molybdenum disulfide (MoS2) was doped with various concentrations (2.5, 5, 7.5, 10 wt%) of zirconium (Zr) using a hydrothermal route in order to assess its antimicrobial and catalytic potential. Doped and control samples were characterized with various techniques. X-ray diffraction (XRD) analysis confirmed the presence of the hexagonal phase of MoS2 and identification of various functional groups and characteristic peaks (Mo bonding) was carried out using FTIR spectra. Micrographs obtained from FESEM and HR-TEM showed a sheet-like surface morphology, while agglomeration of nanosheets was observed upon doping with nanoparticles. To seek further clarity regarding the layered features of S–Mo–S planes, the defect densities and electronic band structure of pure MoS2 and doped MoS2 samples were investigated through Raman analysis. Optical properties of Zr-doped MoS2 nanosheets were assessed using a UV-vis spectrophotometer and the results indicated a red-shift, i.e., movement of peaks towards longer wavelengths, of the material. Dynamics of migration and recombination of excited electron–hole pairs were investigated using PL spectroscopy, which was also used to confirm the presence of exfoliated nanosheets. In addition, the synthetic dye degradation potential of pure and doped samples was investigated in the presence of a reducing agent (NaBH4). It was noted that doped MoS2 showed superior catalytic activity compared to undoped MoS2. The nanocatalyst synthesized in this study exhibited enhanced antibacterial activity against E. coli and S. aureus at high concentrations (0.5, 1.0 mg/50 μl). The present study suggests a cost-effective and environmentally friendly material that can be used to remove toxins such as synthetic dyes and tannery pollutants from industrial wastewater. Nanostructured materials incorporated with biological reducing agents have shown significant potential for use in bactericidal applications.![]()
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Affiliation(s)
- M. Ikram
- Solar Cell Applications Research Lab
- Department of Physics
- Government College University
- Lahore
- Pakistan
| | - R. Tabassum
- Solar Cell Applications Research Lab
- Department of Physics
- Government College University
- Lahore
- Pakistan
| | - U. Qumar
- Department of Physics
- Riphah Institute of Computing and Applied Sciences (RICAS)
- Riphah International University
- Lahore
- Pakistan
| | - S. Ali
- Department of Gynaecology & Obstetrics (Unit–III)
- Jinnah Hospital
- Lahore
- Pakistan
| | - A. Ul-Hamid
- Center for Engineering Research
- Research Institute
- King Fahd University of Petroleum & Minerals
- Dhahran 31261
- Saudi Arabia
| | - A. Haider
- Department of Clinical Medicine and Surgery
- University of Veterinary and Animal Sciences
- Lahore
- Pakistan
| | - A. Raza
- Department of Physics
- Riphah Institute of Computing and Applied Sciences (RICAS)
- Riphah International University
- Lahore
- Pakistan
| | - M. Imran
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Centre for Soft Matter Science and Engineering
- Beijing Engineering Center for Hierarchical Catalysts
- Beijing University of Chemical Technology
- Beijing 100029
| | - S. Ali
- Department of Physics
- Riphah Institute of Computing and Applied Sciences (RICAS)
- Riphah International University
- Lahore
- Pakistan
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Ikram M, Hassan J, Raza A, Haider A, Naz S, Ul-Hamid A, Haider J, Shahzadi I, Qamar U, Ali S. Photocatalytic and bactericidal properties and molecular docking analysis of TiO2 nanoparticles conjugated with Zr for environmental remediation. RSC Adv 2020; 10:30007-30024. [PMID: 35518250 PMCID: PMC9056309 DOI: 10.1039/d0ra05862a] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 08/07/2020] [Indexed: 01/04/2023] Open
Abstract
Despite implementing several methodologies including a combination of physical, chemical and biological techniques, aquatic and microbial pollution remains a challenge to this day. Recently, nanomaterials have attracted considerable attention due to their extraordinary prospective for utilization toward environmental remediation. Among several probable candidates, TiO2 stands out due to its potential for use in multifaceted applications. One way to improve the catalytic and antimicrobial potential of TiO2 is to dope it with certain elements. In this study, Zr-doped TiO2 was synthesized through a sol–gel chemical method using various dopant concentrations (2, 4, 6, and 8 wt%). Surface morphological, microstructural and elemental analysis was carried out using FESEM and HR-TEM along with EDS to confirm the formation of Zr–TiO2. XRD spectra showed a linear shift of the (101) anatase peak to lower diffraction angles (from 25.4° to 25.08°) with increasing Zr4+ concentration. Functional groups were examined via FTIR, an ample absorption band appearing between 400 and 700 cm−1 in the acquired spectrum was attributed to the vibration modes of the Ti–O–Ti linkage present within TiO2 nanoparticles, which denotes the formation of TiO2. Experimental results indicated that with increasing dopant concentrations, photocatalytic potential was enhanced significantly. In this respect, TiO2 doped with 8 wt% Zr (sample 0.08 : 1) exhibited outstanding performance by realizing 98% elimination of synthetic MB in 100 minutes. This is thought to be due to a decreased rate of electron–hole pair recombination that transpires upon doping. Therefore, it is proposed that Zr-doped TiO2 can be used as an effective photocatalyst material for various environmental and wastewater treatment applications. The good docking scores and binding confirmation of Zr-doped TiO2 suggested doped nanoparticles as a potential inhibitor against selected targets of both E. coli and S. aureus. Hence, enzyme inhibition studies of Zr-doped TiO2 NPs are suggested for further confirmation of these in silico predictions. Despite implementing several methodologies including a combination of physical, chemical and biological techniques, aquatic and microbial pollution remains a challenge to this day.![]()
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Affiliation(s)
- M. Ikram
- Solar Cell Applications Research Lab
- Department of Physics
- Government College University Lahore
- Pakistan
| | - J. Hassan
- Department of Physics
- Riphah Institute of Computing and Applied Sciences (RICAS)
- Riphah International University
- Lahore
- Pakistan
| | - A. Raza
- Department of Physics
- Riphah Institute of Computing and Applied Sciences (RICAS)
- Riphah International University
- Lahore
- Pakistan
| | - A. Haider
- Department of Clinical Medicine and Surgery
- University of Veterinary and Animal Sciences
- Lahore 54000
- Pakistan
| | - S. Naz
- Tianjin Institute of Industrial Biotechnology
- Chinese Academy of Sciences
- Tianjin 300308
- China
| | - A. Ul-Hamid
- Center for Engineering Research
- Research Institute
- King Fahd University of Petroleum & Minerals
- Dhahran
- Saudi Arabia
| | - J. Haider
- Tianjin Institute of Industrial Biotechnology
- Chinese Academy of Sciences
- Tianjin 300308
- China
| | - I. Shahzadi
- College of Pharmacy
- University of the Punjab
- Lahore
- Pakistan
| | - U. Qamar
- Department of Physics
- Riphah Institute of Computing and Applied Sciences (RICAS)
- Riphah International University
- Lahore
- Pakistan
| | - S. Ali
- Department of Physics
- Riphah Institute of Computing and Applied Sciences (RICAS)
- Riphah International University
- Lahore
- Pakistan
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Rafiq A, Imran M, Aqeel M, Naz M, Ikram M, Ali S. Correction to: Study of Transition Metal Ion Doped CdS Nanoparticles for Removal of Dye from Textile Wastewater. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01374-y] [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: 11/29/2022]
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Haider A, Ijaz M, Imran M, Naz M, Majeed H, Khan JA, Ali MM, Ikram M. Enhanced bactericidal action and dye degradation of spicy roots’ extract-incorporated fine-tuned metal oxide nanoparticles. Appl Nanosci 2019. [DOI: 10.1007/s13204-019-01188-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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