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Nazir A, Abbas M, Kainat F, Iqbal DN, Aslam F, Kamal A, Mohammed OA, Zafar K, Alrashidi AA, Alshawwa SZ, Iqbal M. Efficient drug delivery potential and antimicrobial activity of biocompatible hydrogels of dextrin/Na-alginate/PVA. Heliyon 2024; 10:e29854. [PMID: 38707453 PMCID: PMC11066320 DOI: 10.1016/j.heliyon.2024.e29854] [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: 10/16/2023] [Revised: 04/11/2024] [Accepted: 04/16/2024] [Indexed: 05/07/2024] Open
Abstract
Ceftriaxone sodium belongs to the third-generation cephalosporin group and is used intramuscular and intravenous route as a broad-spectrum antibiotic. This research aims to prepare biocompatible hydrogels for targeted delivery of ceftriaxone sodium by parental route. Different proportions of polymers (natural and synthetic) in the presence of cross-linker were synthesized by solvent casting method. Ceftriaxone sodium was loaded in hydrogels in different concentrations and its drug release behavior was evaluated along with swelling and biodegradation analysis. The characterization of hydrogel was done by scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) to analyze surface morphology and functional groups involved in the formation of dextrin/Na-alginate/PVA hydrogels loaded with the drug. Thermogravimetric analysis (TGA) was confirmed by thermal stability and degradation pattern of loaded and unloaded hydrogels. The drug-loaded samples presented promising antimicrobial activity against S. aureus and P. multocida and their cytotoxic nature was also studied. Drug release analysis using simulated intestinal fluid (SIF) and phosphate buffer saline(PBS) for the circulatory system shows the consistent release of the drug. The findings unveiled the development of a biocompatible and innovative hydrogel, which has potential advantages for biomedical application, particularly in enhancing the therapeutic efficacy of ceftriaxone sodium drug.
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Affiliation(s)
- Arif Nazir
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Mazhar Abbas
- Department of Basic Sciences, University of Veterinary and Animal Sciences, Lahore, (Jhang-Campus), Pakistan
| | - Faiza Kainat
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Dure Najaf Iqbal
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Farheen Aslam
- Department of Biotechnology, Lahore College for Women University, Lahore, Pakistan
| | - Abida Kamal
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Osama A Mohammed
- Department of Pharmacology, College of Medicine, University of Bisha, Bisha, 61922, Saudi Arabia
| | - Kinza Zafar
- Medical Unit#2, Lahore General Hospital, 54000, Lahore, Pakistan
| | - Amal Abdullah Alrashidi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Samar Z Alshawwa
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
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Ahmad A, Khawar MR, Ahmad I, Javed MH, Ahmad A, Rauf A, Younas U, Nazir A, Choi D, Karami AM. Green synthesis of ZnO nanocubes from Ceropegia omissa H. Huber extract for photocatalytic degradation of bisphenol An under visible light to mitigate water pollution. Environ Res 2024; 249:118093. [PMID: 38237759 DOI: 10.1016/j.envres.2023.118093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/26/2023] [Accepted: 12/31/2023] [Indexed: 02/15/2024]
Abstract
Plastic pollution has become a major environmental problem because it does not break down and poses risks to ecosystems and human health. This study focuses on the environmentally friendly synthesis of ZnO nanocubes using an extract from Ceropegia omissa H. Huber plant leaves. The primary goal is to investigate the viability of these nanocubes as visible-light photocatalysts for the degradation of bisphenol A (BPA). The synthesized ZnO nanocubes have a highly crystalline structure and a bandgap of 3.1 eV, making them suitable for effective visible-light photocatalysis. FTIR analysis, which demonstrates that the pertinent functional groups are present, demonstrates the chemical bonding and reducing processes that take place in the plant extract. The XPS method also studies zinc metals, oxygen valencies, and binding energies. Under visible light irradiation, ZnO nanocubes degrade BPA by 86% in 30 min. This plant-extract-based green synthesis method provides a long-term replacement for traditional procedures, and visible light photocatalysis has advantages over ultraviolet light. The study's results show that ZnO nanocubes may be good for the environment and can work well as visible light photocatalysts to break down organic pollutants. This adds to what is known about using nanoparticles to clean up the environment. As a result, this study highlights the potential of using environmentally friendly ZnO nanocubes as a long-lasting and efficient method of reducing organic pollutant contamination in aquatic environments.
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Affiliation(s)
- Awais Ahmad
- Department of Chemistry, The University of Lahore, Lahore, Pakistan.
| | - Muhammad Ramzan Khawar
- Department of Mechanical Engineering (Integrated Engineering Program), Kyung Hee University, 1732, Deogyeong-Daero, Yongin, Gyeonggi, 17104, South Korea
| | - Ikram Ahmad
- Department of Chemistry, University of Sahiwal, Sahiwal, Pakistan
| | - Muhammad Hassan Javed
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - Anees Ahmad
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - Abdul Rauf
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - Umer Younas
- Department of Chemistry, The University of Lahore, Lahore, Pakistan.
| | - Arif Nazir
- Department of Chemistry, The University of Lahore, Lahore, Pakistan.
| | - Dongwhi Choi
- Department of Mechanical Engineering (Integrated Engineering Program), Kyung Hee University, 1732, Deogyeong-Daero, Yongin, Gyeonggi, 17104, South Korea.
| | - Abdulnasser M Karami
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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Bukhari A, Yar M, Zahra F, Nazir A, Iqbal M, Shah SAA, Yasir M, Al-Mijalli SH, Ahmad N. A novel formulation of triethyl orthoformate mediated durable, smart and antibacterial chitosan cross-linked cellulose fabrics. Int J Biol Macromol 2023; 253:126813. [PMID: 37690650 DOI: 10.1016/j.ijbiomac.2023.126813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/29/2023] [Accepted: 09/07/2023] [Indexed: 09/12/2023]
Abstract
Antibacterial, durable and smart cotton fabrics was developed using chitosan-based formulation. The cellulose was covalently cross-linked with chitosan using TEOF. The antibacterial activity of prepared smart fabrics and CS was studied against S. aureus and E. coli strains. The FTIR, SEM and XRD were employed to confirm the linkage of CS molecules with cellulose in cotton fabrics. The CS of 160 KDa extracted from shrimp shell showed the optimum antibacterial activity. The prominent asymmetric, symmetric alkyl CH peaks of CS were shifted to 2930 and 2845 (cm-1), respectively. Moreover, the shifted peaks at 1590 and 1400 (cm-1) indicate the CO stretching and NH2 bending bands of CS, respectively. This confirm the existence of new imine functional group that was generated after cross-linking of NH2 groups of CS. The SEM results showed more uniform morphology of TEOF cross-linked fabrics versus CS coated fabrics, which revealed a promising microbial growth inhibition activity. The TEOF as a cross-linker has been unveiled, showcasing the effectiveness of this innovative crosslinking approach. The fabric treated with cross-linked CS exhibited remarkable antibacterial properties that endured even after undergoing 30 washing cycles. These antibacterial textiles possess substantial commercial potential across a diverse range of industries.
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Affiliation(s)
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan
| | - Fatima Zahra
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Arif Nazir
- Department of Chemistry, The University of Lahore, Lahore, Pakistan.
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
| | | | - Muhammad Yasir
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Samiah H Al-Mijalli
- Department of Biology, College of Sciences, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Naveed Ahmad
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
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Bashir M, Majid F, Bibi I, Jamil Z, Ali A, Al-Hoshani N, Mohamed RAEH, Iqbal M, Nazir A. Spectroscopic investigation of phase transformation of calcium oxalate dehydrates (renal calculi) using acidic Bryophyllum pinnatom powder. Spectrochim Acta A Mol Biomol Spectrosc 2023; 303:123192. [PMID: 37542869 DOI: 10.1016/j.saa.2023.123192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 07/14/2023] [Accepted: 07/22/2023] [Indexed: 08/07/2023]
Abstract
Urolithiasis is one of most common renal disorders, characterized by the formation of kidney stones (renal calculi) through the crystallization process within the urinary system. The frequently observed renal calculi are calcium oxalate renal calculi and treatment is done by shock wave method or lithotripsy which is harmful for other cells of the internal system. The objective of this work was to evaluate in vitro diagnosis of calcium oxalate kidney stones in the aqueous solution of Bryophyllum pinnatum. The B. pinnatum powder was mixed in apple cider vinegar and lemon juice separately to make solution 1 and 2 respectively. Apple cider vinegar and lemon juice were used as solvents due to their acidic and body compatible nature. Two surgically removed stones was dipped in solution 1 and 2. After two weeks, kidney stone of weight 2.7 g is completely dissolved in solution 2 while a considerable weight reduction of other kidney stone has been observed in solution 1. Fourier transform infrared (FTIR) spectroscopy results show the presence of two strong absorption peaks at 610 and 912 (cm-1) in both solutions after dissolution of urinary stones are related to calcium oxalate dehydrate (COD). Raman spectra further confirm the dissolution of COD in solution having Raman shifts at 504 and 910 (cm-1). Cluster formation and aggregation of particles has been observed in scanning electron microscopy images. This in vitro study proves that a mixture of Bryophyllum pinnatum powder and lemon juice is a best remedy to remove kidney stones.
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Affiliation(s)
- Mahwish Bashir
- Department of Physics, Govt. College Women University, Sialkot, Pakistan
| | - Farzana Majid
- Department of Physics, University of the Punjab, Lahore, Pakistan.
| | - Ismat Bibi
- Department of Chemistry, The Islamia University of Bahawalpur, Pakistan.
| | - Zunaira Jamil
- Department of Physics, Govt. College Women University, Sialkot, Pakistan
| | - Adnan Ali
- Department of Physics, Govt. College University, Faisalabad, Pakistan
| | - Nawal Al-Hoshani
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Rania Ali El Hadi Mohamed
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Arif Nazir
- Deparment of Chemistry, The University of Lahore, Lahore, Pakistan.
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Fatima A, Aldosari H, Al-Buriahi MS, Al Huwayz M, Alrowaili ZA, Alqahtani MS, Ajmal M, Nazir A, Iqbal M, Tur Rasool R, Muqaddas S, Ali A. Cobalt Ferrite Surface-Modified Carbon Nanotube Fibers as an Efficient and Flexible Electrode for Overall Electrochemical Water Splitting Reactions. ACS Omega 2023; 8:37927-37935. [PMID: 37867638 PMCID: PMC10586273 DOI: 10.1021/acsomega.3c03314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 08/30/2023] [Indexed: 10/24/2023]
Abstract
One of the most practical and environmentally friendly ways to deal with the energy crises and global warming is to produce hydrogen as clean fuel by splitting water. The central obstacle for electrochemical water splitting is the use of expensive metal-based catalysts. For electrocatalytic hydrogen production, it is essential to fabricate an efficient catalyst for the counterpart oxygen evolution reaction (OER), which is a four-electron-transfer sluggish process. Here in this study, we have successfully fabricated cobalt-based ferrite nanoparticles over the surface of carbon nanotube fiber (CNTF) that was utilized as flexible anode materials for the OER and overall electrochemical water splitting reactions. Scanning electron microscopy images with elemental mapping showed the growth of nanoparticles over CNTF, while electrochemical characterization exhibited excellent electrocatalytic performance. Linear sweep voltammetry revealed the reduced overpotential value (260 mV@η10mAcm-2) with a small Tafel slope of 149 mV dec-1. Boosted electrochemical double layer capacitance (0.87 mF cm-2) for the modified electrode also reflects the higher surface area as compared to pristine CNTF (Cdl = 0.022 mF cm-2). Charge transfer resistance for the surface-modified CNTF showed the lower diameter in the Nyquist plot and was consequently associated with the better Faradaic process at the electrode/electrolyte interface. Overall, the as-fabricated electrode could be a promising alternative for the efficient electrochemical water splitting reaction as compared to expensive metal-based electrocatalysts.
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Affiliation(s)
- Aneesa Fatima
- Department
of Chemistry, The University of Lahore, Lahore 54590, Pakistan
| | - Haia Aldosari
- Department
of Physics, College of Science, Shaqra University, P.O. Box 5701, Shaqra 11961, Saudi Arabia
| | - M. S. Al-Buriahi
- Department
of Physics, Sakarya University, Sakarya 54050, Turkey
| | - Maryam Al Huwayz
- Department
of Chemistry, College of Science, Princess
Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Z. A. Alrowaili
- Department
of Physics, College of Science, Jouf University, P.O. Box 2014, Sakaka 42421, Saudi Arabia
| | - Mohammed S. Alqahtani
- Department
of Radiological Sciences, College of Applied Medical Sciences, King Khalid University, Abha 61421, Saudi Arabia
| | - Muhammad Ajmal
- Department
of Chemistry, Division of Science and Technology, University of Education Lahore, Lahore 54770, Pakistan
| | - Arif Nazir
- Department
of Chemistry, The University of Lahore, Lahore 54590, Pakistan
| | - Munawar Iqbal
- Department
of Chemistry, Division of Science and Technology, University of Education Lahore, Lahore 54770, Pakistan
| | - Raqiqa Tur Rasool
- Department
of Physics, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Sheza Muqaddas
- Department
of Chemistry, The University of Lahore, Lahore 54590, Pakistan
| | - Abid Ali
- Department
of Chemistry, The University of Lahore, Lahore 54590, Pakistan
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Iqbal DN, Ashraf A, Nazir A, Alshawwa SZ, Iqbal M, Ahmad N. Fabrication, Properties, and Stability of Oregano Essential Oil and Sodium Alginate-Based Wound-Healing Hydrogels. Dose Response 2023; 21:15593258231204186. [PMID: 37822999 PMCID: PMC10563497 DOI: 10.1177/15593258231204186] [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: 12/13/2022] [Accepted: 09/08/2023] [Indexed: 10/13/2023] Open
Abstract
The wound dressings fabricated by polymers and oregano essential oil (OEO) can be very effective as a hydrogel. The current study has been focused on fabricating the hydrogel membranes of oregano oil encapsulated as an antibacterial agent into sodium alginate (SA) solution by solvent casting method and then evaluated the antibacterial, antioxidant activity, and physicochemical performance of SA/OEO-based polymeric membranes. The polymeric interactions, surface morphology, water absorption capability, thermal stability, and encapsulation efficiency were investigated by FT-IR, SEM, swelling ratio, DSC, and encapsulation efficiency. The percentage encapsulation efficiency of essential oil was 40.5%. FTIR validated the presence of molecular interaction between individual components. SEM images showed a rough and porous appearance for hydrogel membranes. Moreover, DSC showed that the fabricated membranes were thermally stable. The inclusion of more content OEO decreased swelling ratios. The antioxidant test was carried out by DPPH assay and antibacterial test through disc diffusion method against microbes. The results revealed that membranes containing the highest content of OEO had more excellent antioxidant and antibacterial efficacy. Therefore, the polymeric membranes of sodium alginate loaded with oregano essential oil can be employed as an effective wound-healing candidate.
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Affiliation(s)
- Dure Najaf Iqbal
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Asia Ashraf
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Arif Nazir
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Samar Z. Alshawwa
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Naveed Ahmad
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
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Bellin EY, Markis WT, Hellebrand AM, Busby CM, Wane KA, Jordan CR, Ledvina JG, Kaplan SM, Metzroth TR, Williams GS, Nazir A, Levin NW, Kaufman AM. Improved nursing home end-stage renal disease patient participation in physical therapy with onsite, more frequent dialysis. Hemodial Int 2023; 27:465-474. [PMID: 37563763 DOI: 10.1111/hdi.13112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/15/2023] [Accepted: 07/24/2023] [Indexed: 08/12/2023]
Abstract
INTRODUCTION For end-stage renal disease (ESRD) patients residing in skilled nursing facilities (SNFs), the logistics and physical exhaustion of life-saving hemodialysis therapy often conflict with rehabilitation goals. Integration of dialysis care with rehabilitation programs in a scalable and cost-efficient manner has been a significant challenge. SNF-resident ESRD patients receiving onsite, more frequent hemodialysis (MFD) have reported rapid post-dialysis recovery. We examined whether such patients have improved Physical Therapy (PT) participation. METHODS We conducted a retrospective electronic medical records review of SNF-resident PT participation rates within a multistate provider of SNF rehabilitation care from January 1, 2022 to June 1, 2022. We compared three groups: ESRD patients receiving onsite MFD (Onsite-MFD), ESRD patients receiving offsite, conventional 3×/week dialysis (Offsite-Conventional-HD), and the general non-ESRD SNF rehabilitation population (Non-ESRD). We evaluated physical therapy participation rates based on a predefined metric of missed or shortened (<15 min) therapy days. Baseline demographics and functional status were assessed. FINDINGS Ninety-two Onsite-MFD had 2084 PT sessions scheduled, 12,916 Non-ESRD had 225,496 PT sessions scheduled, and 562 Offsite-Conventional-HD had 9082 PT sessions scheduled. In mixed model logistic regression, Onsite-MFD achieved higher PT participation rates than Offsite-Conventional-HD (odds ratio: 1.8, CI: 1.1-3.0; p < 0.03), and Onsite-MFD achieved equivalent PT participation rates to Non-ESRD (odds ratio: 1.2, CI: 0.3-1.9; p < 0.46). Baseline mean ± SD Charlson Comorbidity score was significantly higher in Onsite-MFD (4.9 ± 2.0) and Offsite-Conventional-HD (4.9 ± 1.8) versus Non-ESRD (2.6 ± 2.0; p < 0.001). Baseline mean self-care and mobility scores were significantly lower in Onsite-MFD versus Non-ESRD or Offsite-Conventional-HD. DISCUSSION SNF-resident ESRD patients receiving MFD colocated with rehabilitation had higher PT participation rates than those conventionally dialyzed offsite and equivalent PT participation rates to the non-ESRD SNF-rehabilitation general population, despite being sicker, less independent, and less mobile. We report a scalable program integrating dialysis and rehabilitation care as a potential solution for ESRD patients recovering from acute hospitalization.
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Affiliation(s)
- Eran Y Bellin
- Departments of Epidemiology & Population Health and Medicine, Albert Einstein College of Medicine, Bronx, New York, USA
| | | | | | | | - Katy A Wane
- Signature HealthCARE, Louisville, Kentucky, USA
| | | | | | | | | | | | - Arif Nazir
- SHC Med Partners, Louisville, Kentucky, USA
| | - Nathan W Levin
- Internal Medicine, Mount Sinai Icahn School of Medicine, New York, New York, USA
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Kanwal Q, Shahid S, Ahmad A, Nazir A, Yasir M, Anwar A, Alshawwa SZ, Iqbal M. Sustainable, economical and rapid treatment of multiple lung diseases using therapeutic potential of curcumin nanoparticles. Environ Res 2023; 233:116477. [PMID: 37348638 DOI: 10.1016/j.envres.2023.116477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023]
Abstract
The study was designed to prepare pure curcumin nanoparticles in rapid and simple way for target specific drug delivery to kill bacteria lying deep down within the alveoli of lungs via inhaler. Three different methods including evaporation precipitation of nanosuspension (ENP), solid dispersion (SD) and anti-solvent precipitation (ASP) were selected to prepare nanocurcumin in pure form in very simple way. This was done to compare their efficiency in terms of particle size obtained and water solubility and bacterial toxicity of as prepared curcumin nanoparticles. In this comparative study, curcumin NPs obtained from three different methods having particles size 65.3 nm, 98.7 nm and 47.4 nm respectively. The NPs were characterized using various techniques like SEM, XRD, UV-Visible and FTIR for their particle size determination and solubility evaluation. These particles were screened off against five bacterial strains causing lung diseases. AB3 prepared by ASP method, being smallest sized nanostructures, showed maximum solubility in water. These nanoparticles can be used as drug directly via inhaler to the target area without using any support or nano-carrier. In this way minimum dose formulation is required to target bacteria.
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Affiliation(s)
- Qudsia Kanwal
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Samiah Shahid
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
| | - Abeel Ahmad
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Arif Nazir
- Department of Chemistry, The University of Lahore, Lahore, Pakistan.
| | - Muhammad Yasir
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Aneela Anwar
- Department of Basic Sciences and Humanity, University of Engineering and Technology. Lahore, Pakistan
| | - Samar Z Alshawwa
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
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Fatima S, Iqbal M, Bhatti HN, Iqbal M, Alwadai N, Al Huwayz M, Nazir A. Synthesis of Oval-Shaped Bi 2Al 4O 9 Nanoparticles and Their Applications for the Degradation of Acid Green 25 and as Fuel Additives. ACS Omega 2023; 8:30868-30878. [PMID: 37663520 PMCID: PMC10468761 DOI: 10.1021/acsomega.3c01245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 08/08/2023] [Indexed: 09/05/2023]
Abstract
The present study was designed to synthesize an oval-shaped bimetallic bismuth aluminate (Bi2Al4O9) nanoparticles through a solvothermal approach. The resulting structure and morphology of synthesized materials were characterized through X-ray diffraction and scanning electron microscopy. The catalytic performance of Bi2Al4O9 was investigated using acid green 25 (AG-25) as the model dye. The effect of various parameters like catalyst dose, H2O2 concentration, and temperature on dye degradation was studied. The Bi2Al4O9 nanocomposite exhibited the maximum removal of 95% within 50 min at 0.3 M H2O2 concentration, 0.05 mg/mL catalyst dose, and 315 K temperature. The photocatalytic removal of AG-25 followed pseudo-first-order kinetics. The thermodynamics study exposed that thermal catalytic degradation is a spontaneous, endothermic, as well as entropy-driven reaction that moves in the forward direction at the higher temperatures. The Bi2Al4O9 composite was further applied as fuel additives in order to study combustion and physical characteristics of the modified fuel. The efficacy of modified fuel was studied by investigating the fuel parameters at different Bi2Al4O9 dosages. Results revealed that synthesized NPs are excellent photocatalysts and could possibly be used for the removal of toxic pollutants.
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Affiliation(s)
- Shumaila Fatima
- Environmental
Chemistry Laboratory, Department of Chemistry, University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
| | - Mahwish Iqbal
- Environmental
Chemistry Laboratory, Department of Chemistry, University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
| | - Haq Nawaz Bhatti
- Environmental
Chemistry Laboratory, Department of Chemistry, University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
| | - Munawar Iqbal
- Department
of Chemistry, Division of Science and Technology, University of Education, Lahore 53700, Pakistan
| | - Norah Alwadai
- Department
of Physics, College of Science, Princess Nourah bint Abdulrahman, University (PNU), Riyadh 11671, Saudi Arabia
| | - Maryam Al Huwayz
- Department
of Physics, College of Science, Princess Nourah bint Abdulrahman, University (PNU), Riyadh 11671, Saudi Arabia
| | - Arif Nazir
- Department
of Chemistry, The University of Lahore, Lahore 54000, Pakistan
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10
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Nazeer Z, Bibi I, Majid F, Kamal S, Arshad MI, Ghafoor A, Alwadai N, Ali A, Nazir A, Iqbal M. Optical, Photocatalytic, Electrochemical, Magnetic, Dielectric, and Ferroelectric Properties of Cd- and Er-Doped BiFeO 3 Prepared via a Facile Microemulsion Route. ACS Omega 2023; 8:24980-24998. [PMID: 37483235 PMCID: PMC10357527 DOI: 10.1021/acsomega.3c01542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/19/2023] [Indexed: 07/25/2023]
Abstract
A series of Cd- and Er-doped bismuth ferrites were synthesized using a simple microemulsion technique. The influence of Cd and Er doping on the structural, ferroelectric, photocatalytic, and dielectric properties of bismuth ferrite (BFO) was examined in this research. The prepared materials were examined by X-ray diffraction, Raman, scanning electron microscopy, and UV-vis techniques. The XRD patterns reflected the formation of a monophasic rhombohedral structure with the space group R3-c and an average crystallite size calculated to be in the range of 29 to 32 nm. The saturation polarization (Ps), coercivity (Hc), and retentivity (Pr) of the materials were investigated by a hysteresis loop (P-E), and it was perceived that increasing the dopant contents improved the Ps and Pr values, which may be due to the variation of metal cation valence states. In accordance with the photoluminescence (PL) spectra, a highly substituted material displayed lower recombination and increased charge separation rate (e--h+), which eventually contributed to a higher photocatalytic degradation performance of the prepared NMs. Furthermore, as the frequency and dopant concentration increased, the dielectric loss decreased, which could be due to different types of polarization. Bi1 - xCdxFe1 - yEryO3 showed well-saturated hysteresis loops (P-E) with enhanced saturation polarization near 9.7 × 10-4 μC·cm-2. The remnant polarization of the BFO and BFOCE NPs was 2.26 × 10-4 and 8.11 × 10-4 μC·cm-2, respectively, under a maximum electric field, which may be due to the variation of the metal cation valence states. The improved ferroelectric and dielectric properties of Bi1 - xCdxFe1 - yEryO3 NPs are attributed to the reduced concentration of defects, the different domain behavior, and the valence state of Cd and Er ions. The electrochemical (crystal violet (CV) and I-V) properties of Bi1 - xCdxFe1 - yEryO3 were all influenced by the dopant concentrations (Cd and Er). The synergistic effects of Cd and Er on the substituted material enhanced the specific capacitance in comparison to undoped BiFeO3. The photocatalytic activity to degrade CV under visible irradiation increased in BFOCE as the dopant (x,y) concentration increased from 0 to 0.25 by showing 84% dye degradation in comparison to pristine BiFeO3 (53% only) within 120 min under visible light. Moreover, the stability of these prepared nanoparticles was confirmed using recycling experiments, with the results indicating that the synthesized nanomaterials demonstrated promising stability and reusability.
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Affiliation(s)
- Zarish Nazeer
- Institute
of Chemistry, The Islamia University of
Bahawalpur, Bahawalpur 63100, Pakistan
| | - Ismat Bibi
- Institute
of Chemistry, The Islamia University of
Bahawalpur, Bahawalpur 63100, Pakistan
| | - Farzana Majid
- Department
of Physics, University of the Punjab, Lahore 54590, Pakistan
| | - Shagufta Kamal
- Department
of Biochemistry, Government College University
Faisalabad, Faisalabad 38040, Pakistan
| | | | - Aamir Ghafoor
- Institute
of Chemistry, The Islamia University of
Bahawalpur, Bahawalpur 63100, Pakistan
| | - Norah Alwadai
- Department
of Physics, College of Sciences, Princess
Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Abid Ali
- Department
of Chemistry, The University of Lahore, Lahore 54000, Pakistan
| | - Arif Nazir
- Department
of Chemistry, The University of Lahore, Lahore 54000, Pakistan
| | - Munawar Iqbal
- Department
of Chemistry, Division of Science and Technology, University of Education, Lahore 53700, Pakistan
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11
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Nazir A, Katz PR. Handling With Care: Attending to Staff Burdens in Implementation of Quality of Care Initiatives in Nursing Homes. J Am Med Dir Assoc 2023; 24:581-582. [PMID: 37120179 DOI: 10.1016/j.jamda.2023.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 05/01/2023]
Affiliation(s)
- Arif Nazir
- Department of Geriatrics, Florida State University, College of Medicine, Tallahassee, FL, USA.
| | - Paul R Katz
- Department of Geriatrics, Florida State University, College of Medicine, Tallahassee, FL, USA
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12
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Abbas G, Bhatti IA, Amjed N, Zeshan M, Ibrahim SM, Nazir A, Iqbal M. Microwave-assisted desulphurization of coal in alkaline medium and conditions optimization by response surface methodology. Z PHYS CHEM 2023. [DOI: 10.1515/zpch-2022-0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
Abstract
The coal is an imperative source of energy, which on combustion, it emits sulphur dioxide, which cause air pollution. In the present study, microwave mediated desulphurization of coal was investigated and input variables were optimized by response surface methodology (RSM). The proximate analysis and ultimate analysis report indicate the sample belongs to subbituminous having sulphur (6.96%), volatile matter (34.5%) and calorific value (5099 kcal/kg). Under microwave irradiation, up to 68% of sulphur was leached in alkaline medium. The particle size of coal, concentration of potassium hydroxide (KOH), microwave exposure time and power of microwave radiation were systematically optimized for maximum desulphurization of the coal. Under optimum conditions of the process variables, 63.06% desulphurization of coal was achieved. The optimum levels of process variables are as, particle size 500 µm, irradiation time 8.54 min, radiation power 720 W and concentration of KOH 15% (w/v). Findings revealed that the microwave-assisted desulphurization under alkaline condition furnished promising efficiency, which can be employed for the desulphurization of coal.
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Affiliation(s)
- Ghulam Abbas
- Department of Chemistry , University of Agriculture , Faisalabad 38040 , Pakistan
| | - Ijaz Ahmad Bhatti
- Department of Chemistry , University of Agriculture , Faisalabad 38040 , Pakistan
| | - Nyla Amjed
- Department of Chemistry , University of Lahore , Lahore , Pakistan
| | - Muhammed Zeshan
- Department of Chemistry , University of Agriculture , Faisalabad 38040 , Pakistan
| | - Sobhy M. Ibrahim
- Department of Biochemistry , College of Science, King Saud University , P.O. Box: 2455 , Riyadh 11451 , Saudi Arabia
| | - Arif Nazir
- Department of Chemistry , University of Lahore , Lahore , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , University of Lahore , Lahore , Pakistan
- Department of Chemical and Pharmaceutical Sciences , University of Trieste , 34127 Trieste , Italy
- Department of Chemistry , Division of Science and Technology, University of Education , Lahore , Pakistan
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13
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Iqbal DN, Munir A, Abbas M, Nazir A, Ali Z, Alshawwa SZ, Iqbal M, Ahmad N. Polymeric Membranes of Chitosan/Aloe Vera Gel Fabrication With Enhanced Swelling and Antimicrobial Properties for Biomedical Applications. Dose Response 2023; 21:15593258231169387. [PMID: 37056472 PMCID: PMC10087668 DOI: 10.1177/15593258231169387] [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: 11/10/2022] [Accepted: 03/27/2023] [Indexed: 04/15/2023] Open
Abstract
Since ancient times, medicinal plants have been used as traditional medicine to treat a variety of ailments. Aloe vera (AV) gel's therapeutic potential is one of the most effective approach in the fabrication of functional materials. The current study aimed to prepare the AV and chitosan (CS) membranes using various cross-linkers that were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform-infrared (FT-IR) spectroscopy, thermal gravimetric analysis (TGA), and ultraviolet-visible (UV-Visible) techniques, as well as swelling ratio and antimicrobial studies. SEM analysis revealed that the membrane is porous, with interconnected pores. The inclusion of AV contents in the membrane improved thermal stability and crystallinity. The swelling ratio of the ACPG-3 membrane with a 2:1 CS to AV ratio was 366%. The membranes showed promising antimicrobial activity against Escherichia coli, Staphylococcus aureus, Bacillus subtilis, and Pasteurella multocida strains. The findings revealed that polymeric CS/AV membranes have effective potential for use in the biomedical field.
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Affiliation(s)
- Dure N. Iqbal
- Department of Chemistry, The University of
Lahore, Lahore, Pakistan
| | - Atira Munir
- Department of Chemistry, The University of
Lahore, Lahore, Pakistan
| | - Mazhar Abbas
- Department of Biochemistry, University of Veterinary and Animal
Sciences, Lahore, Pakistan
| | - Arif Nazir
- Department of Chemistry, The University of
Lahore, Lahore, Pakistan
- Arif Nazir, Department of Chemistry, The
University of Lahore, Lahore 53700, Pakistan.
| | - Zahid Ali
- Department of Chemistry, The University of
Lahore, Lahore, Pakistan
- State Key-Laboratory of Organic
Inorganic-Composites, Beijing University of Chemical
Technology, Beijing, China
| | - Samar Z. Alshawwa
- Department of Pharmaceutical
Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman
University, Riyadh, Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry, The University of
Lahore, Lahore, Pakistan
- Department of Chemistry, Division
of Science and Technology, University of Education, Lahore, Pakistan
| | - Naveed Ahmad
- Department of Chemistry, Division
of Science and Technology, University of Education, Lahore, Pakistan
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14
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Ali A, Najaf D, Nazir A, Haider A, Iqbal M, Alwadai N, Kausar A, Ahmad A. Fabrication of Efficient Electrocatalysts for Electrochemical Water Oxidation Using Bimetallic Oxides System. ACS Omega 2023; 8:9539-9546. [PMID: 36936294 PMCID: PMC10018688 DOI: 10.1021/acsomega.2c08288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
The study focused on the fabrication of nickel, cobalt, and their bimetallic oxide via a facile electrodeposition approach over the surface of conducting glass has been reported here. Fabricated electrodes have been employed as binder-free and effective anode materials toward oxygen evolution reactions (OER) in electrochemical water splitting at high pH. Nickel and cobalt oxides showed overpotential values of 520 mV and 536 mV at the current density of 10 mAcm-2 with charge transfer resistances of 170 and 195 Ω. For bimetallic oxides (NiCoO@FTO), the overpotential depressed up to 460 mV and lower charge transfer value of 80 Ω. Additionally, double-layer capacitance also boosted for the bimetallic oxide with a value of 199 μF as compared to monometallic nickel oxide (106 μF) and cobalt oxide (120 μF). Multimetal oxides of Ni-Co showed the best performance, which was further supported with larger electrochemical surface area. This facile approach toward the electrode fabrication could be a charming alternate to replace the Ru- and Ir-based expensive materials for OER in electrochemical water splitting.
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Affiliation(s)
- Abid Ali
- Department
of Chemistry, The University of Lahore, Lahore 54590, Pakistan
| | - Dure Najaf
- Department
of Chemistry, The University of Lahore, Lahore 54590, Pakistan
| | - Arif Nazir
- Department
of Chemistry, The University of Lahore, Lahore 54590, Pakistan
| | - Ali Haider
- Department
of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Munawar Iqbal
- Department
of Chemistry, Division of Science and Technology, University of Education, Lahore 54770, Pakistan
| | - Norah Alwadai
- Department
of Physics, College of Sciences, Princess
Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Abida Kausar
- Department
of Chemistry, Government College Women University
Faisalabad, Faisalabad 38000, Pakistan
| | - Azhar Ahmad
- Department
of Chemistry, The University of Lahore, Lahore 54590, Pakistan
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15
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Ahmad N, Anwar F, Abbas A, Shahid M, Iqbal M, Al-Mijalli SH, Iqbal S, Tian M, Zhao C, Nazir A. Appraisal of Wild Fig Fruits for Nutra-pharmaceutical and Biological Attributes. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104631] [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: 02/04/2023] Open
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16
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Katz PR, Smalbrugge M, Karuza J, Costa A, Nazir A, Wasserman MR, Nelson D, Levenson SA, Resnick B. Raising the Bar for Physicians Practicing in Nursing Homes: The Path to Sustainable Improvement. J Am Med Dir Assoc 2023; 24:131-133. [PMID: 36725202 DOI: 10.1016/j.jamda.2022.12.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 12/22/2022] [Accepted: 12/22/2022] [Indexed: 02/03/2023]
Affiliation(s)
- Paul R Katz
- Department of Geriatrics, FSU College of Medicine, Tallahassee, FL, USA.
| | - Martin Smalbrugge
- Department of Medicine for Older People Vrije University and Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | - Jurgis Karuza
- Division of Geriatrics, University of Rochester, Rochester, NY, USA
| | - Andrew Costa
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Arif Nazir
- Chief Medical Officer, Primary Care at BrightSpring Health Services, Louisville, KY, USA
| | | | - Dallas Nelson
- Division of Geriatrics, University of Rochester, Rochester, NY, USA
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17
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Nazir A, Malik K, Mahmood Z, Latif S, Imran M, Iqbal M. Kinetic studies and conditions optimizations for the removal of direct red 80 dye from wastewater using cotton calyx and iron oxide composite. Z PHYS CHEM 2023. [DOI: 10.1515/zpch-2022-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Abstract
This study focusses on the adsorption efficiency of cotton pod (Gossypium arboreum) for biosorption of direct red (DR) 80 dye. The effect of dye concentration, pH, shaking time, adsorbent dose and temperature was considered to evaluate the adsorption efficiency of the cheapest raw material on the removal of dye. Various concentrations (10–50 ppm) were examined and maximum percentage removal of the adsorbent was obtained at pH 1 with adsorbent dose of 0.9 g and shaking time of 60 min. To enhance the adsorption efficiency of the adsorbent, the cotton calyx was treated with FeSO4.7H2O and investigated the removal of the raw adsorbent and the composite. It was examined that the removal efficiency of the composite is more than that of raw adsorbent. The composite was more efficient as dye removal reached up to 97%. FTIR of the composite shows an additional peak at 650 cm−1 for presence of Fe-O group and confirmation of composite formation. SEM micrograph showed that the particles in composite are more packed compared to the raw adsorbent. Mathematical models were applied and kinetic studies also have been done to provide better results regarding to the experimental data. It is concluded that the prepared adsorbent could be used as a tool for the removal of toxic pollutants from textile wastewater.
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Affiliation(s)
- Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Kainat Malik
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Zaid Mahmood
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Shoomaila Latif
- School of Physical Sciences , University of the Punjab , Lahore , Pakistan
| | - Muhammad Imran
- Centre for Inorganic Chemistry, School of Chemistry , University of the Punjab , Lahore , Pakistan
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology , University of Education , Lahore , Pakistan
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18
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Bukhari A, Fatima Z, Atta M, Nazir A, Alshawwa SZ, Alotaibi HF, Iqbal M. Poly Lactic-Co-Glycolic Acid Nano-Carriers for Encapsulation and Controlled Release of Hydrophobic Drug to Enhance the Bioavailability and Antimicrobial Properties. Dose Response 2023; 21:15593258231152117. [PMID: 36743194 PMCID: PMC9893093 DOI: 10.1177/15593258231152117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/02/2023] [Indexed: 01/31/2023] Open
Abstract
This study focusses on the fabrication of nano-carriers for delivery of ciprofloxacin through the nanoprecipitation process. This was done to examine the release of drug at the pH of stomach to find out the antibacterial action of ciprofloxacin loaded nanoparticles (NPs). Prepared NPs were characterized by Fourier Transform Infra-Red (FTIR) spectroscopy, Scanning Electron Microscopy (SEM), and particle size analyzer (PSA) techniques. Drug yield, loading, and sustained release was studied as function of time (up to 8 h). Antibacterial activity of ciprofloxacin loaded NPs were also determined against different gram-positive and gram-negative bacteria. Results revealed that nanoprecipitation is a suitable method for encapsulation of ciprofloxacin in poly(lactic-co-glycolic acid) PLGA NPs. The drug yield and drug loading were found to be 60%. The size range of NPs observed by PSA was in the range of 5.03-6.60 nm. It can be concluded that nanoformulation of ciprofloxacin loaded PLGA NPs can be used in stomach for longer period of time to enhance the bioavailability of the drug.
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Affiliation(s)
| | - Zuha Fatima
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Madiha Atta
- Department of Biochemistry, The University of Lahore, Lahore, Pakistan
| | - Arif Nazir
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Samar Z. Alshawwa
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Hadil F. Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan,Munawar Iqbal, Department of Chemistry, Division of Science and Technology, University of Education, Lahore 54770, Pakistan.
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19
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Muqaddas S, Javed M, Nadeem S, Asghar MA, Haider A, Ahmad M, Ashraf AR, Nazir A, Iqbal M, Alwadai N, Ahmad A, Ali A. Carbon Nanotube Fiber-Based Flexible Microelectrode for Electrochemical Glucose Sensors. ACS Omega 2023; 8:2272-2280. [PMID: 36687067 PMCID: PMC9850492 DOI: 10.1021/acsomega.2c06594] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/19/2022] [Indexed: 05/09/2023]
Abstract
Electrochemical sensors are gaining significant demand for real-time monitoring of health-related parameters such as temperature, heart rate, and blood glucose level. A fiber-like microelectrode composed of copper oxide-modified carbon nanotubes (CuO@CNTFs) has been developed as a flexible and wearable glucose sensor with remarkable catalytic activity. The unidimensional structure of CNT fibers displayed efficient conductivity with enhanced mechanical strength, which makes these fibers far superior as compared to other fibrous-like materials. Copper oxide (CuO) nanoparticles were deposited over the surface of CNT fibers by a binder-free facile electrodeposition approach followed by thermal treatment that enhanced the performance of non-enzymatic glucose sensors. Scanning electron microscopy and energy-dispersive X-ray analysis confirmed the successful deposition of CuO nanoparticles over the fiber surface. Amperometric and voltammetric studies of fiber-based microelectrodes (CuO@CNTFs) toward glucose sensing showed an excellent sensitivity of ∼3000 μA/mM cm2, a low detection limit of 1.4 μM, and a wide linear range of up to 13 mM. The superior performance of the microelectrode is attributed to the synergistic effect of the electrocatalytic activity of CuO nanoparticles and the excellent conductivity of CNT fibers. A lower charge transfer resistance value obtained via electrochemical impedance spectroscopy (EIS) also demonstrated the superior electrode performance. This work demonstrates a facile approach for developing CNT fiber-based microelectrodes as a promising solution for flexible and disposable non-enzymatic glucose sensors.
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Affiliation(s)
- Sheza Muqaddas
- Department
of Chemistry, The University of Lahore, Lahore54590, Pakistan
| | - Mohsin Javed
- Department
of Chemistry, School of Science, University
of Management and Technology, Lahore54770, Pakistan
| | - Sohail Nadeem
- Department
of Chemistry, School of Science, University
of Management and Technology, Lahore54770, Pakistan
| | | | - Ali Haider
- Department
of Chemistry, Quaid-i-Azam University, Islamabad45320, Pakistan
| | - Muhammad Ahmad
- Department
of Chemistry, Division of Science and Technology, University of Education, Lahore54770, Pakistan
| | - Ahmad Raza Ashraf
- Department
of Chemistry, The University of Lahore, Lahore54590, Pakistan
| | - Arif Nazir
- Department
of Chemistry, The University of Lahore, Lahore54590, Pakistan
| | - Munawar Iqbal
- Department
of Chemistry, The University of Lahore, Lahore54590, Pakistan
- Department
of Chemistry, Division of Science and Technology, University of Education, Lahore54770, Pakistan
| | - Norah Alwadai
- Department
of Physics, College of Sciences, Princess
Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh11671, Saudi Arabia
| | - Azhar Ahmad
- Department
of Chemistry, The University of Lahore, Lahore54590, Pakistan
| | - Abid Ali
- Department
of Chemistry, The University of Lahore, Lahore54590, Pakistan
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20
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Ata S, Bano S, Bibi I, Alwadai N, Mohsin IU, Al Huwayz M, Iqbal M, Nazir A. Cationic distributions and dielectric properties of magnesium ferrites fabricated by sol-gel route and photocatalytic activity evaluation. Z PHYS CHEM 2023. [DOI: 10.1515/zpch-2022-0086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Abstract
Sol-gel auto combustion method was adopted to fabricate magnesium ferrite (MgFe2O4) nanoparticles. The structural and morphological properties was studied by XRD, FTIR, and SEM analysis. The average particle sizes of MgFe2O4 was in the range of 35–55 nm. The octahedral & Tetrahedral bond lengths, R
AE (tetrahedral edge length), R
BE (shared octahedral edge length) and R
BEU (individual octahedral edge length), cationic radii (tetra and octa-sites) were also determined. The magnetic strength also showed direct reliance on bond angle and indirect to bond length. Hoping length L
a and L
b and bond angles are also measured. The frequency dependent conductivity and dielectric properties of MgFe2O4 were investigated by Impedance analyzer. The photocatalytic activity (PCA) is appraised against MB (methylene blue) dye and MgFe2O4 calcined at 800 °C showed promising degradation (78%) under visible light irradiation. The findings revealed that MgFe2O4 is can harvest the solar light, which could be employed for the remediation of wastewater contains textile dyes.
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Affiliation(s)
- Sadia Ata
- School of Chemistry, University of the Punjab , Lahore , Pakistan
| | - Sara Bano
- School of Chemistry, University of the Punjab , Lahore , Pakistan
| | - Ismat Bibi
- Institute of Chemistry, The Islamia University of Bahawalpur , Bahawalpur , Pakistan
| | - Norah Alwadai
- Department of Physics , College of Sciences, Princess Nourah bint Abdulrahman University , P.O. Box 84428 , Riyadh 11671 , Saudi Arabia
| | - Ijaz ul Mohsin
- Institute of Applied Materials–Applied Materials Physics (IAM-AWP), Karlsruhe Institute of Technology , Karlsruhe , Germany
| | - Maryam Al Huwayz
- Department of Physics , College of Sciences, Princess Nourah bint Abdulrahman University , P.O. Box 84428 , Riyadh 11671 , Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology , University of Education , Lahore , Pakistan
| | - Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
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21
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Ali Z, Nazir R, Saleem S, Nazir A, Alfryyan N, Alwadai N, Iqbal M. Extraction of silica from fly-ash and fabrication of silica-clay composite for dye removal and kinetic studies. Z PHYS CHEM 2023. [DOI: 10.1515/zpch-2022-0137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Abstract
A facile and green approach to extract silica from the coal fly-ash waste is extremely critical for environmental sustainability and economically suitable. In this study, we have used acid-alkali coupled approach to improvised the proficiency of the extraction process. The sodium hydroxide (NaOH) soaking results the formation of the sodium silicate (Na2SiO3) solution then pure silica was obtained by heating at high temperature; this coupled route-way results better yield of silica (SiO2) which is ∼ 40 g. The efficiency of pure silica is not enough to remove toxic effluents from the aqueous media. A highly versatile approach of composite formation was adopted to fabricate silica-clay composite using kaolinite-clay and extracted silica. Both materials, extracted silica and its silica-clay composite were analyzed using scanning electron microscopy (SEM), energy dispersive X-ray (EDX) method, X-ray diffraction technique (XRD) and Fourier transform infra-red spectroscopy (FTIR). The silica-clay composite showed plate-tubular like morphology with enormous binding sites available for the sorption pollutants like organic dyes. It has shown excellent sorption of methylene blue (MB) efficiency of 131.5 mg/g, while silica furnished the sorption of 70.5 mg/g. Results revealed that the synthesized material could probably have better potential for dye removal from industrial effluents.
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Affiliation(s)
- Zahid Ali
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
- State Key Laboratory of Organic–Inorganic Composites , Beijing University of Chemical Technology , Beijing 100029 , P. R. China
| | - Rabia Nazir
- Analytical Chemistry Research Centre , Pakistan Council of Scientific and Industrial Research , Lahore , Pakistan
| | - Sumaira Saleem
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Nada Alfryyan
- Department of Physics, College of Sciences , Princess Nourah bint Abdulrahman University , P.O. Box 84428 , Riyadh 11671 , Saudi Arabia
| | - Norah Alwadai
- Department of Physics, College of Sciences , Princess Nourah bint Abdulrahman University , P.O. Box 84428 , Riyadh 11671 , Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry , Division of Science and Technology, University of Education , Lahore , Pakistan
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Sajid A, Manzoor Q, Sajid A, Nazir A, Mumtaz MA, Fatima N, Alshawwa SZ, Iqbal M, Younas U. Downregulation of NF-κB activation pathways using essential oil derived from Citrus pseudolimon: Anticancer and anti-inflammatory potential. Biocatalysis and Agricultural Biotechnology 2023. [DOI: 10.1016/j.bcab.2022.102599] [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: 01/03/2023]
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Akhter P, Nawaz S, Shafiq I, Nazir A, Shafique S, Jamil F, Park YK, Hussain M. Efficient visible light assisted photocatalysis using ZnO/TiO2 nanocomposites. Molecular Catalysis 2023. [DOI: 10.1016/j.mcat.2022.112896] [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: 12/26/2022]
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Mannan HA, Nadeem R, Bibi S, Javed T, Javed I, Nazir A, Nisa MU, Batool M, Jilani MI. Mesoporous activated TiO2/based biochar synthesized from fish scales as a proficient adsorbent for deracination of heavy metals from industrial efflux. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2022.2151456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hafiz Abdul Mannan
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, Punjab, Pakistan
| | - Raziya Nadeem
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, Punjab, Pakistan
| | - Shamsa Bibi
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, Punjab, Pakistan
| | - Tariq Javed
- Department of Chemistry, University of Sahiwal, Sahiwal, Punjab, Pakistan
| | - Iram Javed
- Department of Chemistry, University of Sahiwal, Sahiwal, Punjab, Pakistan
| | - Arif Nazir
- Department of Chemistry, The University of Lahore, Lahore, Punjab, Pakistan
| | - Mehr-un Nisa
- Department of Chemistry, The University of Lahore, Lahore, Punjab, Pakistan
| | - Maryam Batool
- Department of Chemistry, University of Sahiwal, Sahiwal, Punjab, Pakistan
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Manzoor Q, Shahab MR, Sajid A, Yaseen HM, Alqahtani FO, Malik QM, Nazir A, Arif K, Iqbal M. Eco-benign preparation of biosorbent using Momordica Charantia for the efficient removal of Cr(VI) ions from wastewater. Z PHYS CHEM 2022. [DOI: 10.1515/zpch-2022-0106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Abstract
Environmental pollution is the major issue of 21st century. The toxic industrial effluents are crucially damaging aquatic environment, in the form of heavy metals, dyes and acids. The heavy metals are toxic, carcinogenic, non-degradable and therefore must be removed to save natural environment and human health. Batch sorption efficiency of Momordica Charantia L. stem and root (MCS and MCR) was studied for Cr(VI) metal ions removal under controlled adsorption parameters. The adsorbed and residual concentration of Cr(VI) was determined by atomic absorption spectrophotometer (AAS). The adsorbent surface morphology was determined by FTIR, BET, SEM and elemental analysis by EDX. The Freundlich and Langmuir equilibrium isotherm and pseudo 1st and 2nd order kinetic models were studied to understand bio-sorption mechanism. The Freundlich isotherm and pseudo 2nd order kinetic was best fitted model for MCS and MCR bio-sorption process. The maximum Langmuir adsorption capacity (q
max) was 312.50 and 400 (mg/g) for MCS and MCR respectively. The trend of removal efficiency (%) and metal uptake (q
e) was in order as MCS > MCR. All data was statistically analyzed using mean values ± standard deviation (SD). In conclusion, MCS and MCR are suggested as excellent sorbents for the elimination of numerous contaminants from the wastewater.
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Affiliation(s)
- Qaisar Manzoor
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | | | - Arfaa Sajid
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | | | - Fatimah Othman Alqahtani
- Department of Chemistry , College of Science, King Faisal University , P.O. Box 380 , Al-Ahsa , 31982 , Saudi Arabia
| | | | - Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Khalid Arif
- Department of Mathematics and Statistics , The University of Lahore , Lahore , Pakistan
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology , University of Education , Lahore , Pakistan
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Raza Q, Bibi I, Majid F, Kamal S, Ata S, Ghafoor A, Arshad MI, Al-Mijalli SH, Nazir A, Iqbal M. Solar light-based photocatalytic removal of CV and RhB dyes using Bi and Al doped SrFe12O19NPs and antibacterial properties. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.11.030] [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: 11/30/2022]
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Kausar A, Zohra ST, Ijaz S, Iqbal M, Iqbal J, Bibi I, Nouren S, El Messaoudi N, Nazir A. Cellulose-based materials and their adsorptive removal efficiency for dyes: A review. Int J Biol Macromol 2022; 224:1337-1355. [DOI: 10.1016/j.ijbiomac.2022.10.220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/12/2022] [Accepted: 10/24/2022] [Indexed: 11/05/2022]
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Ali F, Younas U, Nazir A, Hassan F, Iqbal M, Hamza BUZ, Mukhtar S, Khalid A, Ishfaq A. Biosynthesis and characterization of silver nanoparticles using strawberry seed extract and evaluation of their antibacterial and antioxidant activities. Journal of Saudi Chemical Society 2022. [DOI: 10.1016/j.jscs.2022.101558] [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: 10/31/2022]
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Nazir A, Zahid S, Mahmood Z, Kanwal F, Latif S, Imran M, Hassan F, Iqbal M. Adsorption kinetics for the removal of toxic Congo red dye by polyaniline and citrus leaves as effective adsorbents. Z PHYS CHEM 2022. [DOI: 10.1515/zpch-2022-0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This study focusses on the synthesis of polyaniline (PANI) and polyaniline base adsorbent utilizing Citrus limon leaves (CL) powder. The polyaniline base adsorbent with C. limon was synthesized using the same process as polyaniline synthesis, but with the addition of leaves powder. PANI and PANI based adsorbent with C. limon leaves powder (PANI/CL) were characterized by Fourier Transform Infra-Red (FTIR), UV-Visible spectroscopy and Scanning Electron Microscopy (SEM). This synthesized material was employed for the removal of congo red (CR) dye from industrial wastewater. Furthermore, the Langmuir, Temkin and Freundlich isotherms were also applied to evaluate experimental results. PANI is an efficient adsorbent for CR removal with 71.9 mg/g, while PANI/CL is an efficient adsorbent with 80 mg/g removal of dye according to a comparison of maximal adsorption capabilities. The data concludes that the prepared adsorbents could possibly be employed for the removal of toxic dyes from industrial effluents at large scale and ultimately could help in improving the environment.
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Affiliation(s)
- Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Sundas Zahid
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Zaid Mahmood
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Farah Kanwal
- School of Physical Sciences, University of the Punjab , Lahore , Pakistan
| | - Shoomaila Latif
- School of Physical Sciences, University of the Punjab , Lahore , Pakistan
| | - Muhammad Imran
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab , Lahore , Pakistan
| | - Faiza Hassan
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , Division of Science and Technology, University of Education , Lahore , Pakistan
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Nazir A, Raza M, Abbas M, Abbas S, Ali A, Ali Z, Younas U, Al-Mijalli SH, Iqbal M. Microwave assisted green synthesis of ZnO nanoparticles using Rumex dentatus leaf extract: photocatalytic and antibacterial potential evaluation. Z PHYS CHEM 2022. [DOI: 10.1515/zpch-2022-0024] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Abstract
In the present study, biological method was opted to synthesize ZnO NPs from Rumex dentatus plant. 0.1 M solution of zinc nitrate hexahydrate is mixed with the aqueous solution of R. dentatus plant leaves extract. The proportion of each solution was 1:1. Extract of plant leaves act as reducing agent. Firstly, the color changed from dark green to brown was observed and precipitates of light brown color appeared. Characterization of produced ZnO NPs was done using UV–Visible spectroscopy, scanning electron microscopy (SEM), energy dispersive X-rays (EDX) and X-ray diffraction (XRD) spectroscopy. The prepared ZnO NPS shows maximum absorption at 373 nm, in UV–Visible range. The shape of synthesized ZnO NPs is displayed by SEM. XRD analysis explains the average size of NPs is 6.19 nm. EDX tells about the percentage composition of synthesized ZnO NPs. Antibacterial analysis declared the NPs as good antibacterial agents. Photocatalytic activity of ZnO NPs was done using methyl orange dye. It was concluded that ZnO NPs can degrade toxic pollutants especially dyes.
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Affiliation(s)
- Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Mohsan Raza
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Mazhar Abbas
- Department of Basic Science (Section Biochemistry), University of Veterinary and Animals Science Labore (Jhang Campus) , Jhang, 35200 , Pakistan
| | - Shaista Abbas
- Department of Basic Science (Section Physiology), University of Veterinary and Animals Science Lahore (Jhang Campus) , Jhang 35200 , Pakistan
| | - Abid Ali
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Zahid Ali
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Umer Younas
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Samiah H. Al-Mijalli
- Department of Biology, College of Sciences , Princess Nourah bint Abdulrahman University , P.O. Box 84428 , Riyadh 11671 , Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry , Division of Science and Technology, University of Education , Lahore , Pakistan
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Abbas M, Arshad M, Rafique M, Altalhi A, Saleh D, Ayub M, Sharif S, Riaz M, Alshawwa S, Masood N, Nazir A, Iqbal M. Chitosan-polyvinyl alcohol membranes with improved antibacterial properties contained Calotropis procera extract as a robust wound healing agent. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103766] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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32
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Bukhari A, Atta M, Nazir A, Anees-ur-Rahman, Shahab MR, Kanwal Q, Iqbal M, Albalawi H, Alwadai N. Catalytic degradation of MO and MB dyes under solar and UV light irradiation using ZnO fabricated using Syzygium Cumini leaf extract. Z PHYS CHEM 2022. [DOI: 10.1515/zpch-2021-3096] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
Zinc oxide nanoparticles (ZnO NPs) were fabricated using Syzygium cumini leave extract as a reducing and capping agent. The ZnO NPs were characterized using various techniques including scanning electron microscopy, UV-Visible and energy dispersive X-ray (EDX) techniques. The ZnO nanoparticles size was in 0.2–1 µm range and spherical in shape. Photocatalytic efficiency of ZnO NPs for the removal of MB (methylene blue) and MO (methyl orange) was investigated under solar and UV light expire. Photocatalytic efficiency of ZnO NPs was promising, which was found to be high under UV irradiation versus solar light. The ZnO NPs was confirmed as appropriate photocatalytic agent with significant potential for the removal of dye from wastewater.
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Affiliation(s)
- Attaullah Bukhari
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Madiha Atta
- Department of Biochemistry , The University of Lahore , Lahore , Pakistan
| | - Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Anees-ur-Rahman
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | | | - Qudsia Kanwal
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , Division of Science and Technology , University of Education , Lahore , Pakistan
| | - Hind Albalawi
- Department of Physics , College of Sciences, Princess Nourah bint Abdulrahman University , , Riyadh 11671 , Saudi Arabia
| | - Norah Alwadai
- Department of Physics , College of Sciences, Princess Nourah bint Abdulrahman University , , Riyadh 11671 , Saudi Arabia
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Levy C, Zimmerman S, Mor V, Gifford D, Greenberg SA, Klinger JH, Lieblich C, Linnebur S, McAllister A, Nazir A, Pace D, Stone R, Resnick B, Sloane PD, Ouslander J, Gaugler JE. Pragmatic Trials in Long-Term Care: Implementation and Dissemination Challenges and Opportunities. J Am Geriatr Soc 2022; 70:709-717. [PMID: 35195281 PMCID: PMC8944211 DOI: 10.1111/jgs.17698] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 02/01/2022] [Indexed: 11/28/2022]
Abstract
Randomized controlled trials are considered the most rigorous research design in efficacy and effectiveness research; however, such trials present numerous challenges that limit their applicability in real-world settings. As a consequence, pragmatic trials are increasingly viewed as a research design that overcomes some of these barriers with the potential to produce findings that are more reproducible. Although pragmatic methodology in long-term care is receiving increasing attention as an approach to improve successful dissemination and implementation, pragmatic trials present complexities of their own. To address these complexities and related issues, experts with experience conducting pragmatic trials, developing nursing home policy, participating in advocacy efforts, and providing clinical care in long-term care settings participated in a virtual consensus conference funded by the National Institute on Aging in Spring 2021. Participants identified 4 cross-cutting principles key to dissemination and implementation of pragmatic trial interventions: (1) stakeholder engagement, (2) diversity and inclusion, (3) organizational strain and readiness, and (4) learn from adaptations. Participants emphasized that implementation processes must be grounded in the perspectives of the people who will ultimately be responsible for implementing the intervention once it is proven to be effective. In addition, messaging must speak to long-term care staff and all others who have a stake in its outcomes. Although our understanding of dissemination and implementation strategies remains underdeveloped, this article is designed to guide long-term care researchers and community providers who are increasingly aware of the need for pragmatism in disseminating and implementing evidence-based care interventions.
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Affiliation(s)
- Cari Levy
- Department of Veterans Affairs, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA,University of Colorado, Aurora, CO, USA,Address correspondence to Cari Levy, MD, PhD, Division of Health Care Policy and Research, University of Colorado at Denver HSC, 13611 E Colfax Ave, Aurora, CO 80045, USA. (C. Levy)
| | - Sheryl Zimmerman
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Vincent Mor
- Center of Innovation in Long-term Services and Supports, Providence VA Medical Center, Providence, RI, USA,Department of Health Services, Policy & Practice, Brown University School of Public Health, Providence, RI, USA
| | - David Gifford
- Center for Health Policy Evaluation, American Health Care Association, Washington, DC, USA,Center for Quality and Innovation, School of Public Health, Brown University, Providence, RI, USA
| | | | | | | | | | | | - Arif Nazir
- Signature HealthCARE, Louisville, KY, USA
| | | | | | - Barbara Resnick
- University of Maryland School of Nursing, Baltimore, MD, USA
| | - Philip D. Sloane
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Joseph Ouslander
- Department of Integrated Medical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - Joseph E. Gaugler
- Division of Health Policy and Management, School of Public Health, University of Minnesota, Minneapolis, MN, USA
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Nazir A, Ali K. Drug induced erythema multiforme-oral variant: A case report. Oral and Maxillofacial Surgery Cases 2022. [DOI: 10.1016/j.omsc.2021.100241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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35
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Levy C, Zimmerman S, Mor V, Gifford D, Greenberg SA, Klinger JH, Lieblich C, Linnebur S, McAllister A, Nazir A, Pace D, Stone R, Resnick B, Sloane PD, Ouslander J, Gaugler JE. Pragmatic trials in long-term care: Challenges, opportunities, recommendations. Geriatr Nurs 2022; 44:282-287. [DOI: 10.1016/j.gerinurse.2022.02.006] [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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Ashraf K, Pasha I, Zaman QU, Nazir A, Iqbal M. Quantification of antioxidant potential of baked and fried multigrain food material as a tool for nutritional optimization strategy. Biocatalysis and Agricultural Biotechnology 2022. [DOI: 10.1016/j.bcab.2022.102315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Nazir A. The most valuable stool sample! J Am Geriatr Soc 2021; 70:631-632. [PMID: 34723382 DOI: 10.1111/jgs.17528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/11/2021] [Accepted: 10/17/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Arif Nazir
- Signature HealthCARE, Louisville, Kentucky, USA.,Department of Family and Geriatric Medicine (Gratis), University of Louisville School of Medicine, Louisville, Kentucky, USA
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Nazir A, Wenzler A, Reifsnyder J, Feifer R. Lessons in Collaboration from the Management of Pandemic in 2 Large Skilled Nursing Facility Chains. J Am Med Dir Assoc 2021; 22:2225-2227. [PMID: 34716005 PMCID: PMC8519660 DOI: 10.1016/j.jamda.2021.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/04/2021] [Accepted: 09/07/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Arif Nazir
- Division of Family Medicine and Geriatrics, University of Louisville, Louisville, KY, USA; Signature HealthCARE, Louisville, KY, USA.
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Ali F, Hamza M, Iqbal M, Basha B, Alwadai N, Nazir A. State-of-art of silver and gold nanoparticles synthesis routes, characterization and applications: a review. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2021-3084] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
To date, the noble metal-based nanoparticles have been used in every field of life. The Au and Ag nanoparticles (NPs) have been fabricated employing different techniques to tune the properties. In this study, the methodologies developed and adopted for the fabrication of Au and Ag have been discussed, which include physical, chemical and biological routes. The Au and Ag characteristics (morphology, size, shape) along with advantages and disadvantages are discussed. The Au and Ag NPs catalytic and biomedical applications are discussed. For the Ag and Au NPs characterization, SEM (scanning electron microscope), TEM (transmission electron microscope), FTIR (Fourier transform infra-red spectroscopy), XRD (X-rays diffraction) and DLS (dynamic light scattering) techniques are employed. The properties of Au and Ag NPs found dependent to synthesis approach, i.e., the size, shape and morphologies, which showed a promising Catalytic, drug delivery and antimicrobial agent applications. The review is a comprehensive study for the comparison of Au and Ag NPs synthesis, properties and applications in different fields.
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Affiliation(s)
- Faisal Ali
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Muhammad Hamza
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Beriham Basha
- Department of Physics , College of Science, Princess Nourah bint Abdulrahman University (PNU) , Riyadh 11671 , Saudi Arabia
| | - Norah Alwadai
- Department of Physics , College of Science, Princess Nourah bint Abdulrahman University (PNU) , Riyadh 11671 , Saudi Arabia
| | - Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
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Nazir A, Masih M, Iqbal M. Formulation, optimization, qualitative and quantitative analysis of new dosage form of corticosteroid. Futur J Pharm Sci 2021. [DOI: 10.1186/s43094-021-00364-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract
Background
The objective of the present research work is to develop the entirely new drug product formulation (Ophthalmic Suspension) which belongs to the therapeutic class of steroids drugs (Corticosteroid). There are different dosage forms of Triamcinolone acetonide to treat different systemic as well as topical diseases as per patient symptomatic conditions. Due to non-availability of this active drug (Triamcinolone acetonide) ophthalmic dosage form in the national and international market research work is carried out to enter in this dosage form.
Results
In the formulation design and development, different inactive like polysorbate 30 mg/mL, PEG-12 glyceryl dimyristate 70 mg/mL, ethyl alcohol 10 µL/mL, citric acid 1 mg/mL, sodium citrate 3.5–4.0 mg/mL, BKC 0.15 mg/mL and water for injection have been used at different stages in different proportions during the manufacturing procedure. Gradient HPLC, C18 column, 5 µm, 100 A, 3.9 mm × 300 mm, detector UV/Vis @ 254 nm, column oven, auto-sampler, degasser, is used and this analytical testing method is validated to obtain the accurate results. The excipients play different roles including solvent, antioxidant, solubilizer, emulsifier, antibacterial, preservative, anticoagulant, antimicrobial agent, surfactant and buffers in the stability of active drug for its excellent therapeutic output results. Correlation coefficient factor is greater than 0.999 which indicates that the method has good linearity at proposed concentration against triamcinolone acetonide.
Conclusions
Excellent physical and chemical properties like physical appearance, pH, specific gravity, viscosity, re-suspendability, sedimentation volume is accomplished to meet the requirements of the eye treatment products. On the basis of experimental results achieved during validation process, it can be assumed that the current analysis method is more accurate, precise, specific, linear and consistency indicating in the range of 70 to 130% of the analyte concentration. From the physical, chemical behaviors and chemical assay of the newly developed drug formulation of corticosteroid (triamcinolone acetonide) it is concluded that it can be probably put for further clinical trial in different phases for human use.
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Nazir A, Akbar A, Baghdadi HB, ur Rehman S, Al-Abbad E, Fatima M, Iqbal M, Tamam N, Alwadai N, Abbas M. Zinc oxide nanoparticles fabrication using Eriobotrya japonica leaves extract: Photocatalytic performance and antibacterial activity evaluation. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103251] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Affiliation(s)
- Arif Nazir
- Signature HealthCARE, Louisville, Kentucky, USA.,Family and Geriatric Medicine (Gratis), University of Louisville School of Medicine, Louisville, Kentucky, USA
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Zaman QU, Nazir B, Mahmood F, Al-Mijalli SH, Iqbal M, Younes I, Nazir A. Versatility and effectiveness of the commercial composts for ecological restoration of heavy metal contaminated soil for sunflower crop. Biocatalysis and Agricultural Biotechnology 2021. [DOI: 10.1016/j.bcab.2021.102025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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44
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Iqbal DN, Ehtisham-ul-Haque S, Ahmad S, Arif K, Hussain EA, Iqbal M, Alshawwa SZ, Abbas M, Amjed N, Nazir A. Enhanced antibacterial activity of chitosan, guar gum and polyvinyl alcohol blend matrix loaded with amoxicillin and doxycycline hyclate drugs. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103156] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Daud H, Ghani A, Iqbal DN, Ahmad N, Nazir S, Muhammad MJ, Hussain EA, Nazir A, Iqbal M. Preparation and characterization of guar gum based biopolymeric hydrogels for controlled release of antihypertensive drug. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103111] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Majid F, Dildar S, Ata S, Bibi I, Mohsin IU, Ali A, Almoneef MM, Iqbal M, Irshad S, Nazir A, Ali MD. Cobalt doping of nickel ferrites via sol gel approach: effect of doping on the structural and dielectric properties. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2021-3006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Cobalt doped nickel ferrites were fabricated by sol gel route and the dielectric constant, tangent loss and AC conductivity were investigated as a function of Co doping. The X-ray diffractometer characterization confirmed that the Co
x
Ni1−x
Fe2O4 with doping concentration (x = 0.1, 0.2, 0.3, 0.4, and 0.5) have cubic spinel structure. In the XRD spectrum there appear extra peaks of Fe2O3 as an impurity that is gradually disappear by increasing doping ratio of cobalt ions, which is an indication of high crystallinity. The structural parameters (lattice constant, grain size, dislocation density, X-rays density and packing factor) are greatly influenced by the doping of cobalt atoms i.e., lattice constant increases. The crystal size increases from 30 to 42.26 nm by cobalt substitution in the pure nickel ferrites. The Fourier Transform IR Spectroscopy indicate shift in peaks to lower frequency region because cobalt doping reduced binding energy between metal ion and oxygen ions. Atomic structure of cobalt doped nickel ferrites examined by the Raman spectroscopy. Co
x
Ni1−x
Fe2O4 shows Raman mode at ∼285, ∼477, ∼563, ∼624 and ∼704 cm−1. There is unnoticeable Raman shift due to the doping of cobalt’s atoms.
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Affiliation(s)
- Farzana Majid
- Department of Physics , University of Punjab , Lahore , Pakistan
| | - Seemab Dildar
- Department of Physics , University of Punjab , Lahore , Pakistan
| | - Sadia Ata
- School of Chemistry , University of Punjab , Lahore , Pakistan
| | - Ismat Bibi
- Department of Chemistry , The Islamia University of Bahawalpur , Bahawalpur , Pakistan
| | - Ijaz ul Mohsin
- Department of Chemistry , University of Engineering and Technology , Lahore , Pakistan
| | - Adnan Ali
- Department of Physics , Government College University , Faisalabad , Pakistan
| | - Maha M. Almoneef
- Department of Physics , College of Sciences, Princess Nourah Bint Abdulrahman University (PNU) , Riyadh , 11671 , Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Saba Irshad
- Institute of Biochemistry and Biotechnology, University of the Punjab , Lahore , Pakistan
| | - Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Muhammad D. Ali
- Department of Physics , University of Punjab , Lahore , Pakistan
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Noreen S, Sahar I, Masood N, Iqbal M, Zahid M, Nisar J, Khan MI, Nazir A. Thermodynamic and kinetic approach of biodiesel production from waste cooking oil using nano-catalysts. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2020-1644] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abstract
This study focusses on the production of biodiesel by reacting the heterogeneous based nano-catalysts with used cooking oil in the presence of methanol. The CZO nanoparticles (NPs) were synthesized by co-precipitation method and characterized by different techniques. Biodiesel was characterized by the gas chromatograph (GC) and Fourier Transform Infra-red Spectroscopy (FTIR). Optimum conditions for the maximum biodiesel yield (90%) were 0.2% (w/w) catalyst dose, 3:1 methanol to oil ratio, 50 °C reaction temperature, 150 min reaction time and 136 rpm stirring speed. The kinetic modeling and the thermodynamic factors like enthalpy (ΔH), activation energy (Ea), entropy (ΔS) and free energy (ΔG) were operated on all the data. Mean and standard deviation was used for analysis of data. The results indicate the maximum biodiesel yield under the optimum reaction conditions, which is promising to reduce the pollution such as air pollution and greenhouse effect for sustainable environmetal development.
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Affiliation(s)
- Saima Noreen
- Department of Chemistry , University of Agriculture , Faisalabad , Pakistan
| | - Iqra Sahar
- Department of Chemistry , University of Agriculture , Faisalabad , Pakistan
| | - Nasir Masood
- Department of Environmental Sciences , COMSATS University Islamabad , Vehari Campus , Vehari , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Muhammad Zahid
- Department of Chemistry , University of Agriculture , Faisalabad , Pakistan
| | - Jan Nisar
- National Centre of Excellence in Physical Chemistry , University of Peshawar , Peshawar 25120 , Pakistan
| | - Muhammad I. Khan
- Department of Physics , The University of Lahore , Lahore , Pakistan
| | - Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
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Nazir A, Steinberg K, Wasserman M, Horowitz AC, Lett JE. Upgrading the Nursing Home Survey Process: Continuing the Dialogue. J Am Med Dir Assoc 2021; 22:1121-1122. [PMID: 33823161 DOI: 10.1016/j.jamda.2021.03.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 03/16/2021] [Indexed: 11/19/2022]
Affiliation(s)
- Arif Nazir
- Division of Family Medicine and Geriatrics, University of Louisville, Louisville, KY, USA; Signature HealthCARE, Louisville, KY, USA
| | - Karl Steinberg
- Eisenberg Village, Los Angeles Jewish Home, Los Angeles, CA, USA
| | | | | | - James E Lett
- Medical Director, Avar Consulting, Inc., Rockville, MD, USA
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Nazir A, Farooq S, Abbas M, Alabbad EA, Albalawi H, Alwadai N, Almuqrin AH, Iqbal M. Synthesis, characterization and photocatalytic application of Sophora mollis leaf extract mediated silver nanoparticles. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2020-1803] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This study reports green synthesis and characterization of silver nanoparticles (Ag NPs) from Sophora mollis leaf extract. The use of S. mollis extract for preparation of Ag NPs was investigated using different techniques. Dark brown color indicates formation of nanoparticles. Fourier transform infra-red (FTIR) analysis revealed that plant extract act as a reducing and capping agent. Morphological aspects of Ag NPs were ascertained by means of SEM studies. Energy dispersive and FTIR spectroscopy results showed chemical composition and plant extract functionality respectively. X-ray diffraction (XRD) analysis showed particle size of 70 nm. Antibacterial activity of NPs was investigated by disc diffusion and minimum inhibitory concentration method. Antioxidant activity of NPs was shown by DPPH assay. The photo catalytic efficiency of synthesized Ag NPs was evaluated by degradation of methylene blue (MB) dye under UV irradiation. Ag NPs degraded MB dye up to 88% in 160 min. It is concluded that these NPs could be employed for degradation of toxic industrial effluents. Result proved the green synthesis of Ag NPs from S. mollis extract is clean, economical and safe method.
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Affiliation(s)
- Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore 53700 , Pakistan
| | - Saqib Farooq
- Department of Chemistry , The University of Lahore , Lahore 53700 , Pakistan
| | - Mazhar Abbas
- Department of Biochemistry, College of Veterinary and Animal Sciences (Jhang-Campus) , University of Veterinary & Animal Sciences , Lahore , Pakistan
| | - Eman A. Alabbad
- Department of Chemistry, College of Science , Imam Abdulrahman Bin Faisal University , Dammam 31441 , Saudi Arabia
| | - Hind Albalawi
- Department of Physics, College of Sciences , Princess Nourah bint Abdulrahman University (PNU) , Riyadh 11671 , Saudi Arabia
| | - Norah Alwadai
- Department of Physics, College of Sciences , Princess Nourah bint Abdulrahman University (PNU) , Riyadh 11671 , Saudi Arabia
| | - Aljohara H. Almuqrin
- Department of Physics, College of Sciences , Princess Nourah bint Abdulrahman University (PNU) , Riyadh 11671 , Saudi Arabia
| | - Munawar Iqbal
- Department of Chemistry , The University of Lahore , Lahore 53700 , Pakistan
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Nazir A. Leveraging social media to respond to a global crisis. J Am Geriatr Soc 2021; 69:1412-1413. [PMID: 33675067 DOI: 10.1111/jgs.17057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/24/2021] [Accepted: 01/25/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Arif Nazir
- Associate Clinical Professor of Family and Geriatric Medicine (Gratis), University of Louisville School of Medicine, Louisville, Kentucky, USA
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