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Ullah N, Ali Z, Khan AS, Adalat B, Nasrullah A, Khan SB. Preparation and dye adsorption properties of activated carbon/clay/sodium alginate composite hydrogel membranes. RSC Adv 2024; 14:211-221. [PMID: 38173605 PMCID: PMC10759302 DOI: 10.1039/d3ra07554k] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 12/05/2023] [Indexed: 01/05/2024] Open
Abstract
A hydrogel membrane was prepared using activated carbon and sodium dodecyl sulphate modified montmorillonite clay incorporated into sodium alginate polymer. The activated carbon was prepared from a locally available susbine plant. The physiochemical characteristics of the synthesized hydrogel membrane were investigated using FTIR, SEM, EDX, and TGA techniques. The performance of the membrane was evaluated as an adsorbent by methyl red adsorption from water. The adsorption behavior of the hydrogel membrane was investigated under varying conditions of pH (2-10), membrane dose (0.0025-0.015 mg g-1), equilibrium adsorption time (30-360 minutes), solution temperature (25-45 °C) and dye concentration (100-500 mg L-1). The maximum adsorption capacity of the hydrogel membrane was 248.13 mg g-1. The kinetics of methyl red adsorption on hydrogel membrane best followed the pseudo-second order (PSO). The equilibrium adsorption results suggested that it obeyed the Freundlich isotherm very closely (R2 = 0.994). The thermodynamics of methyl red adsorption on the hydrogel membrane revealed that the adsorption was spontaneous (ΔS° = 16.15 kJ K-1 mol-1), favorable (ΔG° = -3.51 kJ mol-1), and endothermic (ΔH° = -1.48 kJ mol-1) in nature. These investigations suggested that the fabricated hydrogel membrane could be suitably used for methyl red adsorption from the solution.
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Affiliation(s)
- Nasim Ullah
- Department of Chemistry, Hazara University Mansehra 21120 Khyber Pakhtunkhwa Pakistan
| | - Zarshad Ali
- Department of Chemistry, Hazara University Mansehra 21120 Khyber Pakhtunkhwa Pakistan
| | - Amir Sada Khan
- Department of Chemistry, University of Science and Technology Bannu 28100 Khyber Pakhtunkhwa Pakistan
| | - Bushra Adalat
- Department of Chemistry, Hazara University Mansehra 21120 Khyber Pakhtunkhwa Pakistan
| | - Asma Nasrullah
- Department of Chemistry, Shaheed Benazir Bhutto Women University Peshawar 25000 Khyber Pakhtunkhwa Pakistan
| | - Sher Bahadar Khan
- Chemistry Department, Faculty of Science, King Abdulaziz University P. O. Box 80203 Jeddah 21589 Saudi Arabia
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Shaheen R, Yasin T, Ali Z, Khan AS, Adalat B, Tahir M, Khan SB. Synthesis, Characterization, and Adsorptive Characteristics of Radiation-Grafted Glycidyl Methacrylate Bamboo Fiber Composites. ACS Omega 2023; 8:38849-38859. [PMID: 37901518 PMCID: PMC10601089 DOI: 10.1021/acsomega.3c02466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 09/29/2023] [Indexed: 10/31/2023]
Abstract
In the present study, a biosorbent was prepared through the radiation-induced graft polymerization (RIGP) technique by using a glycidyl methacrylate (GMA) monomer. Functionalized bamboo materials were used for grafting. The grafting percentage (G %) of GMA on bamboo fibers was assessed based on the optimization of the absorbed dose and concentration of the monomer. The chemical modification of the polymerized product into the sulfonated form of the grafted biopolymer was carried out by using sodium sulfite solution. The modification of the biopolymer at various stages was analyzed by Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) techniques. By performing scanning electron microscopy (SEM), the morphological changes of the prepared biopolymer were analyzed. The temperature stability of the synthesized material was assessed by the thermogravimetric analysis (TGA) technique. The prepared sulfonated biosorbent was used in the batch adsorption study for the uptake of copper. We examined a variety of variables, including pH, adsorbent dosage, and time. The adsorption kinetics were studied using pseudo-first-order (PFO) and pseudo-second-order (PSO) models. Adsorption isotherms and thermodynamic parameters were also applied to study the adsorption capacity of the biosorbent. The maximum copper adsorption capacity was found to be 198 mg g-1 from the Langmuir isotherm. Copper adsorption followed PSO kinetics (R2 = 0.999). This inexpensive and eco-friendly biosorbent removed 96% of copper ions from the solution.
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Affiliation(s)
- Ruqayya Shaheen
- Department
of Chemistry, Hazara University, Mansehra 21300, Pakistan
| | - Tariq Yasin
- Department
of Chemistry, Pakistan Institute of Engineering
and Applied Sciences (PIEAS), PO Nilore, Islamabad 45650, Pakistan
| | - Zarshad Ali
- Department
of Chemistry, Hazara University, Mansehra 21300, Pakistan
| | - Amir Sada Khan
- Department
of Chemistry, University of Science and
Technology, Bannu 28100, Khyber Pakhtunkhwa Pakistan
| | - Bushra Adalat
- Department
of Chemistry, Hazara University, Mansehra 21300, Pakistan
| | - Mehwish Tahir
- Department
of Chemistry, Pakistan Institute of Engineering
and Applied Sciences (PIEAS), PO Nilore, Islamabad 45650, Pakistan
| | - Sher Bahadar Khan
- Chemistry
Department, Faculty of Science, King Abdulaziz
University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
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Chowdhury FA, Islam MF, Arefin MK, Akter H, Tithy SA, Sabrin F, Mahmud F, Khan AS, Alam MT. Demographic Characteristics of Patients with Breast Cancer in Bangladesh: A Single-Centre Study. Mymensingh Med J 2023; 32:764-768. [PMID: 37391971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2023]
Abstract
We performed this study to investigate the socio-demographic factors of breast cancer patients of Bangladesh. This cross-sectional study was conducted in the Department of General Surgery at Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from July 2018 to September 2019 for a period of one (1) year. All consecutive cases of breast carcinoma admitted in hospital and attended at outpatient department during the study period were selected as study population. Total 50 patients were selected. The mean age of the study patients was 51.1. Maximum number (70.0% cases) of breast cancer was belonged in 4th to 5th decade aged group. 70.0% breast cancer patients were housewives. The most of the breast carcinoma was reported in the urban people which were 78.0% cases. The percentage of educated study population was 80.0%. On religious background, 86.0% cases of breast cancer patients were Muslim. Most of breast cancer patients were sporadic in origin 94.0% cases, had no family history of breast cancer. Breast cancer was mostly distributed in pre-menopausal aged group with 82.0% cases. Ninety percent (90.0%) of the study population was come from middle class socio-economic group. In western countries, incidence of breast cancer is more in elderly aged menopause women with high socio-economic class. In this study the breast carcinoma was most prevalent among educated urban Muslim pre-menopausal housewives of age group 4th to 5th decade and most of them belonged to middle socio-economic class. The socio-demographic factors of breast cancer patients in Bangladesh are disparate from western countries in age standard, social class group and menstrual status.
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Affiliation(s)
- F A Chowdhury
- Dr Fatama Akter Chowdhury, Assistant Registrar, Department of Burn and Plastic, Dhaka Medical College Hospital, Dhaka, Bangladesh; E-mail:
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Mohammed S, Ullah MA, Saha PD, Rahman MA, Shawon GM, Siddique MI, Khan AS. Comparison of Recurrent Laryngeal Nerve Injury during Thyroidectomy with and Without Routine Identification of the Nerve Peroperatively. Mymensingh Med J 2023; 32:690-698. [PMID: 37391961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2023]
Abstract
Thyroidectomy is one of the commonest operative procedures performed in the neck and injury to recurrent laryngeal nerve (RLN) is not uncommon. It results in hoarseness to serious respiratory distress depending on the extent of the injury. The incidence of RLN injury varies widely and is multifactorial depending on the extent of surgical procedures, experience and expertise of the surgeons, nature of the thyroid diseases and a wide range of anatomical variations. Peroperative routine identification of the nerve during thyroidectomy can be a way to prevent injury. Despite recommendation for identification of the RLN peroperatively in thyroid surgery, a debate still exists whether the nerve to be identified peroperatively or not, to avoid its inadvertent injury. The aim of this study was to compare the incidence of RLN injury between two groups where RLN was identified peroperatively in one group and the nerve was not attempted for identification in the other group in thyroid surgery. A comparative cross-sectional study was carried out in the department of surgery and otolaryngology at Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from June 2018 to November 2019, on patients who underwent elective thyroid surgery. Patients were included in RLN identified group and in RLN not identified group, by individual surgeons' preference to identify or not to identify the RLN peroperatively. Peroperative identification of the nerve was done by direct visualization. All cases were evaluated for vocal cord palsy preoperatively, during extubation and postoperatively. Patient's particulars, other parameters and perioperative data were recorded. A total of 80 cases were included in this study, 40 cases (50.0%) in the peroperative RLN identified group and 40 cases (50.0%) in the RLN not identified group. Unilateral RLN palsy was encountered in 2.5% (2 cases) in the RLN identified group and 6.3% (5 cases) in the nerve not identified group (p value 0.192). Transient unilateral RLN palsy was seen in 7.5% (6 cases) of patients; 2.5% (2 cases) in the RLN identified group and 5.0% (4 cases) in the RLN not identified group. And 1.3% (1 case) of permanent unilateral RLN palsy was encountered in this study, which was in the RLN not identified group; there was no permanent palsy in the RLN identified group. We did not encounter any bilateral RLN palsy. There was no statistically significant difference in the incidence of RLN injury between the peroperatively RLN identified group and no attempt to identify the nerve group despite recommendation for peroperative RLN identification in thyroid surgery to avoid its inadvertent injury. However, from this study, we recommend peroperative RLN identification in thyroid surgery to enhance surgical skill.
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Affiliation(s)
- S Mohammed
- Dr Saad Mohammed, Assistant Professor, Department of Surgery, East West Medical College and Hospital, Turag, Dhaka, Bangladesh; E-mail:
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Khan TA, Zahoor ZU, Khan AS. Effect of Nystatin with and without DMAHDM on Antifungal and Mechanical Properties of Acrylic Resins. Eur J Prosthodont Restor Dent 2023; 31:152-160. [PMID: 36164988 DOI: 10.1922/ejprd_2439khan09] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
PURPOSE To investigate antifungal and mechanical properties after the impregnation of Dimethyl Amino-ethyl Hexa-decyl Di-methacrylate (DMAHDM) alone or in combination with Nystatin in polymethylmethacrylate. METHODOLOGY The control group was fabricated by mixing powder and liquid of PMMA at the ratio of 2.5:1 g/mL. The DMAHDM was added to PMMA liquid and were mixed with PMMA powder. The Nystatin (500,000 International Units (IU)) was mixed with PMMA powder, whereby the composite powder was mixed with the DMAHDM-based liquid. The prepared specimens were tested for fungal adhesion testing (at days 1 and 30), impact strength and flexural strength. Oneway ANOVA post-hoc Tukey's test were used for statistical analysis. RESULTS Statistical analysis for the adhesion assay revealed that the antifungal activities of unaged and aged specimens in experimental groups were statistically significant as compared to control group A. The groups containing DMAHDM with Nystatin have shown statistically reduced flexural strength. The impact strength test revealed that groups containing 20% DMAHDM alone and DMAHDM with Nystatin showed statistically reduced impact strength compared to the control group. CONCLUSION Antifungal activities of experimental PMMA resin was increased. The addition of DMAHDM alone in PMMA resin has no deleterious effects on impact and flexural strength, however, at higher concentration values were reduced.
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Affiliation(s)
- T A Khan
- Sardar Begun Dental College, Gandhara University, Peshawar, Pakistan
| | - Z U Zahoor
- Department of Biochemistry, Peshawar Medical College, Peshawar, KPK, Pakistan
| | - A S Khan
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Khalid A, Zulfiqar S, Tabassum N, Khan AS, Abid MA, Akhtar MS, Al-Misned F, Aljuwayid AM, Zahmatkesh S, Asif S. Biocompatible cellulose acetate supported ammonium based ionic liquid membranes; way forward to remediate water pollution. Chemosphere 2023; 322:138151. [PMID: 36804633 DOI: 10.1016/j.chemosphere.2023.138151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/03/2023] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
Dyes contaminated water has caused various environmental and health impacts in developing countries especially Pakistan due to different industrial activities. This issue has been addressed in present study by fabricating biocompatible ionic liquid (IL) membranes for the remediation of Crystal violet (CV) dye from contaminated water. Novel ammonium-based IL such as Triethyl dimethyl ammonium sulfate ([C3A][C2H6]SO4); (A2) was synthesized and further functionalized with hydroxyapatite (HAp; extracted from refused fish scales) resulting in the formation of HA2. Furthermore, A2 and HA2 were then used to fabricate the cellulose acetate (CA) based membranes with different volume ratios. The physicochemical properties of membranes-based composite materials were investigated using FTIR, XRD, and TGA and used for the adsorption of CV in the closed batch study. In results, CA-HA2 (1:2) showed higher efficiency of 98% for CV reduction, after the contact time of 90 min. Kinetic studies showed that the adsorption of CV followed the pseudo-second-order kinetic model for all adsorbents. The antibacterial properties of the synthesized membrane were investigated against gram-positive strain, S. aureus and CA-A2 (1:1) showed better antibacterial properties against S. aureus. The developed membrane is sustainable to be used for the adsorption of CV and against bacteria.
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Affiliation(s)
- Amina Khalid
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan.
| | - Sana Zulfiqar
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan.
| | - Noshabah Tabassum
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan.
| | - Amir Sada Khan
- Department of Chemistry, University of Science and Technology Bannu-28100, Khyber Pakhtunkhwa, Pakistan
| | | | - Muhammad Saeed Akhtar
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 712-749, South Korea.
| | - Fahad Al-Misned
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Muteb Aljuwayid
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Sasan Zahmatkesh
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Puebla, Mexico
| | - Saira Asif
- Faculty of Sciences, Department of Botany, PMAS Arid Agriculture University, Rawalpindi, Punjab, 46300, Pakistan
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Gul T, Aslam MM, Khan AS, Iqbal T, Ullah F, Eldesoky GE, Aljuwayid AM, Akhtar MS. Phytotoxic responses of wheat to an imidazolium based ionic liquid in absence and presence of biochar. Chemosphere 2023; 322:138080. [PMID: 36781001 DOI: 10.1016/j.chemosphere.2023.138080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 01/21/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
Research on ionic liquids (ILs) and biochars (BCs) is a novel site of scientific interest. An experiment was designed to assess the effect of 1-propanenitrile imidazolium trifluoro methane sulfonate ([C2NIM][CF3SO3]) ionic liquid (IL) and IL-BC combination on the wheat plant. Three working standards of the IL; 50, 250, 500 and 1000 mg/L, prepared in deionized water, were tested in the absence and presence of BC on wheat seedling. Results indicated significant decrease in seed germination (%), length, fresh weight, chlorophyll a, b and carotenoid contents of wheat seedlings at 250, 500 and 1000 mg/L of the IL. An admirable increase in phenolic and 2,2-diphenyl-1-picrylhydrazyl (DPPH) contents of wheat seedlings was noted at 250, 500 and 1000 mg/L of the IL. The application of BC significantly ameliorated the negative effects of IL on the selected parameters of wheat. It is inferred that the undesirable effects of the IL on wheat growth can be positively restored by addition of BC.
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Affiliation(s)
- Taza Gul
- Department of Botany, University of Science and Technology Bannu, Pakistan
| | | | - Amir Sada Khan
- Department of Chemistry, University of Science and Technology Bannu, Pakistan
| | - Tahir Iqbal
- Department of Botany, University of Science and Technology Bannu, Pakistan
| | - Faizan Ullah
- Department of Botany, University of Science and Technology Bannu, Pakistan
| | - Gaber E Eldesoky
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Ahmed Muteb Aljuwayid
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Muhammad Saeed Akhtar
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 712-749, South Korea.
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Siddiqui R, Makhlouf Z, Akbar N, Khamis M, Ibrahim T, Khan AS, Khan NA. Antiamoebic properties of Methyltrioctylammonium chloride based deep eutectic solvents. Cont Lens Anterior Eye 2023; 46:101758. [PMID: 36243521 DOI: 10.1016/j.clae.2022.101758] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 03/13/2022] [Revised: 09/06/2022] [Accepted: 09/09/2022] [Indexed: 11/25/2022]
Abstract
PURPOSE This aim of this study was to assess anti-parasitic properties of deep eutectic solvents against eye pathogen, Acanthamoeba, often associated with the use of contact lens. METHODS Assays were performed to investigate the effects of various Methyltrioctylammonium chloride-based deep eutectic solvents on Acanthamoeba castellanii, comprising amoebicidal assays, encystment assays, excystment assays, cytotoxicity assays by measuring lactate dehydrogenase release from human cells, and cytopathogenicity assays to determine parasite-mediated host cell death. RESULTS In a 2 h incubation period, DES-B, DES-C, DES-D, and DES-E exhibited up to 85 % amoebicidal activity at micromolar doses, which was enhanced further following 24 h incubation. When tested in encystment assays, selected deep eutectic solvents abolished cyst formation and were able to block excystment of A. castellanii. All solvents exhibited minimal human cell cytotoxicity except DES-D. Finally, all tested deep eutectic solvents inhibited amoeba-mediated cytopathogenicity, except DES-B. CONCLUSIONS Deep eutectic solvents show potent antiamoebic effects. These findings are promising and could lead to the development of novel contact lens disinfectants, as well as opening several avenues to explore the molecular mechanisms, various doses and incubation periods, and use of different bases against Acanthamoeba castellanii.
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Affiliation(s)
- Ruqaiyyah Siddiqui
- College of Arts and Sciences, American University of Sharjah, University City, Sharjah 26666, United Arab Emirates; Istinye Faculty of Medicine, Istinye University, Istanbul, Turkey
| | - Zinb Makhlouf
- College of Arts and Sciences, American University of Sharjah, University City, Sharjah 26666, United Arab Emirates
| | - Noor Akbar
- College of Arts and Sciences, American University of Sharjah, University City, Sharjah 26666, United Arab Emirates
| | - Mustafa Khamis
- College of Arts and Sciences, American University of Sharjah, University City, Sharjah 26666, United Arab Emirates
| | - Taleb Ibrahim
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Amir Sada Khan
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates; Department of Chemistry, University of Science & Technology, Banuu 28100, Khyber Pakhtunkhwa, C
| | - Naveed Ahmed Khan
- Department of Clinical Sciences, College of Medicine, University of Sharjah, University, City, Sharjah 27272, United Arab Emirates; Istinye Faculty of Medicine, Istinye University, Istanbul, Turkey..
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Ullah S, Ali Z, Khan AS, Nasrullah A, Javed F, Adalat B, Sher N, Ahmed M, Alshgari RA, Saleh Mushab MS, Majeed S. Hydrophobic ammonium based ionic liquids for efficient extraction of textile dyes from aqueous media: Extraction study and antibacterial evaluation. Chemosphere 2023; 321:138008. [PMID: 36731664 DOI: 10.1016/j.chemosphere.2023.138008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/11/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Alizarin red S (ARS) extraction from aqueous medium was carried out using hydrophobic ionic liquids (ILs) containing trioctylammonium cation paired with 4-tert-butylbenzoate ([TOA][Butbenz] (IL1), 4-phenylbutanoate ([TOA][PheBut] (IL2), 3-4-dimethylbenzoate ([TOA][DMbenz] (IL3), naphthoate, ([TOA][Naph]) (IL4), salicylate ([TOA][Sali]) (IL5) and nonanedioate ([TOA]2[Nona]) (IL6). The findings demonstrated that all of the tested ILs were efficient for extracting ARS, however, [TOA]2[Nona] was more effective than others. For the extraction of ARS from the aqueous phase, the effects of various parameters including the initial pH of the dye solution, contact time, ILs to dye volume ratio (VIL:VW), dye concentration, temperature, and salt effect were investigated. The spontaneity of the liquid-liquid extraction of ARS from the aqueous phase to the IL phase was confirmed by thermodynamic parameters. More than 90% of the ARS was extracted from the aqueous phase to the IL phase throughout all experiments. Interaction of selected IL with dyes were confirmed using FTIR analysis. The standard bacterial strains of Escherichia coli (E. coli) ATCC BAA-2471 (gram negative) and Methicillin-resistant Staphylococcus (MRSA) ATCC 43300 (gram positive) were used for evaluating antibacterial activity. The lower dose (250 ppm), the ILs1, 2, 3, 4, 5, and 6 inhibited 0.40, 1.50, 6.50, 1.50, 2.50, and 0.50 mm growth of E. coli, and 4.0, 2.0, 16.50, 0.40, 5.0, and 3.50 mm growth of MRSA, respectively. The experimental findings confirmed that the present ILs can be utilized as an effective solvent for ARS and other dyes extraction from aqueous media.
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Affiliation(s)
- Saadat Ullah
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Zarshad Ali
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Amir Sada Khan
- Department of Chemistry, University of Science and Technology Bannu 28100, Khyber Pakhtunkhwa, Pakistan.
| | - Asma Nasrullah
- Department of Chemistry, Shaheed Benazir Bhutto Women University, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Fatima Javed
- Department of Chemistry, Shaheed Benazir Bhutto Women University, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Bushra Adalat
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Naila Sher
- Department of Biotechnology, University of Science and Technology Bannu-28100, Khyber Pakhtunkhwa, Pakistan
| | - Mushtaq Ahmed
- Department of Biotechnology, University of Science and Technology Bannu-28100, Khyber Pakhtunkhwa, Pakistan; Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, Leuven 3001, Belgium
| | - Razan A Alshgari
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Saadat Majeed
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan
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Khan AS, Sakina, Nasrullah A, Ullah S, Ullah Z, Khan Z, Khan NA, Khan SZ, Din IU. An Overview on Phytotoxic Perspective of Ionic Liquids and Deep Eutectic Solvents: The Role of Chemical Structure in the Phytotoxicity. ChemBioEng Reviews 2023. [DOI: 10.1002/cben.202200033] [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] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Amir Sada Khan
- University of Science and Technology Department of Chemistry 28100 Bannu Khyber Pakhtunkhwa Pakistan
| | - Sakina
- University of Science and Technology Department of Chemistry 28100 Bannu Khyber Pakhtunkhwa Pakistan
| | - Asma Nasrullah
- University of Science and Technology Department of Chemistry 28100 Bannu Khyber Pakhtunkhwa Pakistan
- Shaheed Benazir Bhutto Women University Department of Chemistry 25000 Peshawar Khyber Pakhtunkhwa Pakistan
| | - Saadat Ullah
- Hazara University Department of Chemistry Mansehra Khyber Pakhtunkhwa Pakistan
| | - Zahoor Ullah
- Baluchistan University of Information Technology, Engineering and Management Sciences (BUITEMS) Department of Chemistry Takatu Campus 87100 Quetta Pakistan
| | - Zahid Khan
- American University of Sharjah Department of Civil Engineering, College of Engineering P.O. Box 26666 Sharjah United Arab Emirates
| | - Naveed Ahmed Khan
- University of Sharjah Department of Clinical Sciences, College of Medicine University City 27272 Sharjah Unites Arab Emirates
- Istinye University Istinye Faculty of Medicine 34396 Istanbul Turkey
| | - Shahan Zeb Khan
- University of Science and Technology Department of Chemistry 28100 Bannu Khyber Pakhtunkhwa Pakistan
| | - Israf Ud Din
- Prince Sattam Bin Abdulaziz University Department of Chemistry, College of Science and Humanities P.O. Box 173 Al-Kharj Saudi Arabia
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Hasan MJ, Chowdhury SM, Khan AS, Rahman M, Fardous J, Adit T, Rahman M, Hossain MT, Yeasmin S, Raheem E, Amin MR. Clinico-epidemiological Characteristics of Asymptomatic and Symptomatic COVID-19-Positive Patients in Bangladesh. Mymensingh Med J 2023; 32:185-192. [PMID: 36594319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
As of August 15, 2020, Bangladesh lost 3591 lives since the first Coronavirus disease 2019 (COVID-19) case announced on March 8. The objective of the study was to report the clinical manifestation of both symptomatic and asymptomatic COVID-19-positive patients. An online-based cross-sectional survey was conducted for initial recruitment of participants with subsequent telephone interview by the three trained physicians in 237 adults with confirmed COVID-19 infection in Bangladesh. The study period was 27 April to 26th May 2020. Consent was ensured before commencing the interview. Collected data were entered in a pre-designed case record form and subsequently analyzed by SPSS 20.0. The mean±SD age at presentation was 41.59±13.73 years and most of the cases were male (73.0%). A total of 90.29% of patients reside in urban areas. Among the positive cases, 13.1% (n=31) were asymptomatic. Asymptomatic cases were significantly more common in households with 2 to 4 members (p=0.008). Both symptomatic and asymptomatic patients shared similar ages of presentation (p=0.23), gender differences (p=0.30) and co-morbidities (p=0.11). Only 5.3% of patients received ICU care during their treatment. The most frequent presentation was fever (88.3%), followed by cough (69.9%), chest pain (34.5%), body ache (31.1%), and sore throat (30.1%). Thirty-nine percent (n=92) of the patients had co-morbidities, with diabetes and hypertension being the most frequently observed. There has been an upsurge in COVID-19 cases in Bangladesh. Patients were mostly middle-aged and male. Typical presentations were fever and cough. Maintenance of social distancing and increased testing are required to meet the current public health challenge.
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Affiliation(s)
- M J Hasan
- Dr Mohammad Jahid Hasan, Executive Director, Pi Research Consultancy Center, Dhaka, Bangladesh; E-mail:
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Ullah N, Ali Z, Ullah S, Khan AS, Adalat B, Nasrullah A, Alsaadi M, Ahmad Z. Synthesis of activated carbon-surfactant modified montmorillonite clay-alginate composite membrane for methylene blue adsorption. Chemosphere 2022; 309:136623. [PMID: 36183883 DOI: 10.1016/j.chemosphere.2022.136623] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/28/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
In this research work, a novel composite membrane was synthesized from activated carbon (AC) derived from sesban, sodium benzyl dodycyel sulphate (SBDS) treated montmorillonite (MMT) clay and alginate (alg) for the adsorption of methylene-blue (MB) dye. The AC-MMT-alg composite membranes were characterized using analytical characterizations such as FTIR, SEM, EDX and TGA analysis. Several important factors like initial solution pH, contact time, membrane dose, MB concentrations and temperature effect on the adsorption efficiency of membrane were investigated. MB dye adsorption on the synthesized membrane was explained well by pseudo second order equation. Isotherm study showed that MB adsorption data followed Langmuir adsorption isotherm model. The adsorption capacity of membrane for MB was 1429 mg/g from aqueous solution. Thermodynamic study confirmed endothermic and spontaneous MB adsorption on the adsorbent. The mechanistic path way indicated that electrostatic forces were involved in this adsorption process. The synthesized membrane proved an efficient adsorbent for MB adsorption from aqueous media.
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Affiliation(s)
- Nasim Ullah
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Zarshad Ali
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Saadat Ullah
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Amir Sada Khan
- Department of Chemistry, University of Science and Technology Bannu-28100, Khyber Pakhtunkhwa, Pakistan.
| | - Bushra Adalat
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Asma Nasrullah
- Department of Chemistry, University of Science and Technology Bannu-28100, Khyber Pakhtunkhwa, Pakistan
| | - Mustafa Alsaadi
- Department of Chemical Engineering, University of Jeddah, Jeddah, Saudi Arabia
| | - Zubair Ahmad
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
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Almas M, Khan AS, Nasrullah A, Din IU, Fagieh TM, Bakhsh EM, Akhtar K, Khan SB, Khan SZ, Inayat A. Substantial increase in adsorption efficiency of local clay-alginate beads toward methylene blue impregnated with SDS. Environ Sci Pollut Res Int 2022:10.1007/s11356-022-23949-y. [PMID: 36350450 DOI: 10.1007/s11356-022-23949-y] [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] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
In the current research work, local clay-alginate beads loaded with sodium dodecyl sulfate (SDS) surfactant were prepared for efficient adsorption of methylene blue (MB). FTIR, SEM-EDX, and TGA instruments were used to examine the surface functional groups, morphology, elemental analysis, and thermal stability of beads, respectively. The adsorption efficiency of native clay for MB increases from 124.78 to 247.94 mg/g when loaded in alginate and SDS in beads form. The impacts of adsorbent dosage, initial pH, contact time, initial MB concentration, and temperature were investigated and optimized. The maximum adsorption capacity of beads for MB was 1468.5 mg/g. The process followed a pseudosecond order kinetic and Freundlich adsorption isotherm model. Thermodynamic study confirmed that MB adsorption on beads is endothermic and spontaneous in nature. The beads were recycled and reused for five times. According to the findings, local clay-alginate beads impregnated with SDS proved to be a promising and efficient adsorbent for extracting MB from aqueous solution.
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Affiliation(s)
- Muzdalfa Almas
- Department of Chemistry, University of Science and Technology, Bannu, Pakistan
| | - Amir Sada Khan
- Department of Chemistry, University of Science and Technology, Bannu, Pakistan
| | - Asma Nasrullah
- Department of Chemistry, University of Science and Technology, Bannu, Pakistan
- Department of Chemistry, Shaheed Benazir Bhutto Women University, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Israf Ud Din
- Department of Chemistry, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj, Saudi Arabia
| | - Taghreed M Fagieh
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Esraa M Bakhsh
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Kalsoom Akhtar
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Sher Bahadar Khan
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
- Center of Excellence for Advanced Materials, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Shahan Zeb Khan
- Department of Chemistry, University of Science and Technology, Bannu, Pakistan
| | - Abrar Inayat
- Department of Sustainable and Renewable Energy Engineering, University of Sharjah, 27272, Sharjah, United Arab Emirates.
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Durrani WZ, Nasrullah A, Khan AS, Fagieh TM, Bakhsh EM, Akhtar K, Khan SB, Din IU, Khan MA, Bokhari A. Adsorption efficiency of date palm based activated carbon-alginate membrane for methylene blue. Chemosphere 2022; 302:134793. [PMID: 35525452 DOI: 10.1016/j.chemosphere.2022.134793] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/20/2022] [Accepted: 04/27/2022] [Indexed: 06/14/2023]
Abstract
In the current study, activated carbon (AC) was prepared from date palm using single step activation using boric acid as an activating agent. The synthesized AC was incorporated with alginate (AC-alginate (AC-alg)) to prepare membrane for adsorption of methylene blue (MB) in batch adsorption study. The prepared membrane was characterized using different types of analytical techniques such as FTIR, SEM, and TGA analysis. Adsorption of methylene blue dye from aqueous solution was carried out using AC-alg membrane in batch investigation. Various experimental parameters effecting the adsorption of MB on membrane such as initial pH of dye solution, contact time, concentration of dye solution and temperature were optimized to get maximum adsorption efficiency. Kinetics, isotherm and thermodynamics study was performed for dye adsorption. Pseudo-second order kinetic model and Langmuir adsorption isotherm were well fitted to the experimental data. The maximum adsorption capacity for MB adsorption was 666 mg/g found by Langmuir adsorption isotherm. Thermodynamic study revealed that the adsorption of MB on AC-alg membrane is spontaneous and an exothermic process. The experimental result confirmed that AC-alg membrane is a suitable and easily recoverable adsorbent to be used for efficient removal of MB and MB like other dyes.
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Affiliation(s)
- Wishal Zia Durrani
- Department of Chemistry, University of Science & Technology, Bannu, 28100, Khyber Pakhtunkhwa, Pakistan
| | - Asma Nasrullah
- Department of Chemistry, University of Science & Technology, Bannu, 28100, Khyber Pakhtunkhwa, Pakistan
| | - Amir Sada Khan
- Department of Chemistry, University of Science & Technology, Bannu, 28100, Khyber Pakhtunkhwa, Pakistan.
| | - Taghreed M Fagieh
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Esraa M Bakhsh
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Kalsoom Akhtar
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Sher Bahadar Khan
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia; Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Israf Ud Din
- Department of Chemistry, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj, Saudi Arabia
| | - Muhammad Azam Khan
- Department of Horticulture, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, 46300, Pakistan
| | - Awais Bokhari
- Department of Chemical Engineering, COMSATS University Islamabad (CUI), Lahore Campus, Defence Road Off Rawind Road, Lahore, Punjab, 54000, Pakistan; Sustainable Process Integration Laboratory - SPIL, NETME Centre, Faculty of Mechanical Engineering, Brno University of Technology - VUT Brno, Technická 2896/2, 616 69, Brno, Czech Republic
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Afrose R, Islam AM, Amin MR, Saha TK, Khan AS, Hasan MJ. National TB Control Program of Bangladesh: System Failure and Loss of Effectiveness. Mymensingh Med J 2022; 31:749-757. [PMID: 35780360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The National Tuberculosis Control Program (NTP) is one of the largest programs run by the state with many successes. However, underreporting is considered a real flaw of the current program. To report the characteristics and outcomes of TB patients registered in an upazila health complex in Kazipur, Sirajganj district, Bangladesh between September 2018 and February 2019 under the control of NTP was the objective of the study. This retrospective cohort study was conducted using routinely collected program data from the aforementioned site. Data retrieved from the hospital record form. Formal permission was obtained from the local authority. Consent statements and ethical aspects were waived due to the retrospective nature of the study. Analysis was performed using SPSS 20.0. A total of 207 tuberculosis cases were included with an average age of presentation of 43 years. Approximately 82.0% had pulmonary tuberculosis (PTB) and the rest had extrapulmonary tuberculosis (EPTB). PTB was more common in males, whereas EPTB was common in females (p=0.01). Of all cases, 84.0% were diagnosed by a positive sputum smear and 16.0% were diagnosed clinically with a negative sputum smear. Attendance at follow-up was 82.12%, 70.04% and 68.59% at months 2, 5 and 6 following index admission respectively. Overall, the cure rate was higher in PTB than EPTB [146 (85.9%) vs. 5 (13.5%), p<0.001). The rate of treatment completion was 25.1% (n=52) and the death count was 1.4% (n=3) [PTB-1.2 (n=2) vs. EPTB-2.7% (n=1)]. A gradual decline in reporting or completion of treatment was observed in this setting. However, a nationwide study is warranted to explore this issue in detail.
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Affiliation(s)
- R Afrose
- Dr Rafia Afrose, Assistant Professor, Department of Medicine, Dhaka Medical College, Dhaka,, Bangladesh; E-mail:
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Siddiqui R, Makhlouf Z, Akbar N, Khamis M, Ibrahim T, Khan AS, Khan NA. Antiamoebic properties of salicylic acid-based deep eutectic solvents for the development of contact lens disinfecting solutions against Acanthamoeba. Mol Biochem Parasitol 2022; 250:111493. [PMID: 35753525 DOI: 10.1016/j.molbiopara.2022.111493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/30/2022] [Accepted: 06/20/2022] [Indexed: 10/17/2022]
Abstract
Acanthamoeba castellanii is a protist pathogen that can cause sight-threatening keratitis and a fatal infection of the central nervous system, known as granulomatous amoebic encephalitis. In this study, effects of five malonic acid and salicylic acid-based deep eutectic solvents (DES) on A. castellanii were investigated. These are salicylic acid-trioctylphosphine (DES 1), salicylic acid- trihexylamine (DES 2), salicylic acid-trioctylamine (DES 3), malonic acid-trioctylphosphine (DES 4) and malonic acid-trihexylamine (DES 5). The experiments were done by performing amoebicidal, encystment, excystment, cytopathogenicity, and cytotoxicity assays. At micromolar dosage, the solvents DES 2 and DES 3 displayed significant amoebicidal effects (P<0.05), inhibited encystment and excystment, undermined the cell-mediated cytopathogenicity of A. castellanii, and also displayed minimal cytotoxicity to human cells. Conversely, the chemical components of these solvents: salicylic acid, trihexylamine, and trioctylamine showed minimal effects when tested individually. These results are very promising and to the best of our knowledge, are reported for the first time on the effects of deep eutectic solvents on amoebae. These results can be applied in the development of new formulations of novel contact lens disinfectants against Acanthamoeba castellanii.
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Affiliation(s)
- Ruqaiyyah Siddiqui
- College of Arts and Sciences, American University of Sharjah, University City, Sharjah 26666, United Arab Emirates
| | - Zinb Makhlouf
- College of Arts and Sciences, American University of Sharjah, University City, Sharjah 26666, United Arab Emirates
| | - Noor Akbar
- College of Arts and Sciences, American University of Sharjah, University City, Sharjah 26666, United Arab Emirates
| | - Mustafa Khamis
- College of Arts and Sciences, American University of Sharjah, University City, Sharjah 26666, United Arab Emirates
| | - Taleb Ibrahim
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Amir Sada Khan
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Naveed Ahmed Khan
- Department of Clinical Sciences, College of Medicine, University of Sharjah, University, City, Sharjah, 27272, United Arab Emirates.
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Yasir N, Khan AS, Hassan MF, Ibrahim TH, Khamis MI, Nancarrow P. Ionic Liquid Agar-Alginate Beads as a Sustainable Phenol Adsorbent. Polymers (Basel) 2022; 14:polym14050984. [PMID: 35267806 PMCID: PMC8912393 DOI: 10.3390/polym14050984] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/25/2022] [Accepted: 02/25/2022] [Indexed: 02/01/2023] Open
Abstract
Cleaning wastewater containing low concentrations of phenolic compounds is a challenging task. In this work, agar–alginate beads impregnated with trihexyltetradecylphosphonium bromide ([P66614][Br]) ionic liquid adsorbent were synthesized as a potential adsorbent for such applications. FTIR, TGA, SEM, EDX and PZC studies were performed to characterize and understand the physicochemical properties of the adsorbent. The Fourier transformation infrared spectroscopy (FTIR) study showed that [P66614][Br] ionic liquid was effectively incorporated into the agar–alginate structure. TGA and SEM confirmed comparative enhanced thermal stability and porous surface, respectively. Chemical reaction rate-altering parameters, i.e., pH, contact time, initial phenol concentration and temperature, are optimized at highest phenol removal. It was found that the maximum phenol adsorption capacity and highest removal efficiency by the adsorbent occurred at pH 2, initial phenol concentration of 150 mg/L, beads dosage of 6 mg/mL and contact time of 2 h with values of 16.28 mg/g and 65.12%, respectively. The pseudo-second order model fitted the adsorption kinetics well, and the Freundlich isotherm model gave the experimental data the best fit. Analysis of thermodynamic data demonstrated that the adsorption process is fundamentally exothermic in nature, and low temperature favors spontaneity of the chemical reaction. Regeneration studies indicated that the adsorbent can at least be used for four cycles in such applications without any considerable loss in adsorption efficiency.
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Affiliation(s)
- Nihal Yasir
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates; (N.Y.); (A.S.K.); (M.F.H.); (P.N.)
| | - Amir Sada Khan
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates; (N.Y.); (A.S.K.); (M.F.H.); (P.N.)
- Department of Chemistry, University of Science & Technology, Banuu 28100, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Faheem Hassan
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates; (N.Y.); (A.S.K.); (M.F.H.); (P.N.)
| | - Taleb H. Ibrahim
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates; (N.Y.); (A.S.K.); (M.F.H.); (P.N.)
- Correspondence:
| | - Mustafa I. Khamis
- Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates;
| | - Paul Nancarrow
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates; (N.Y.); (A.S.K.); (M.F.H.); (P.N.)
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Rashid T, Sher F, Khan AS, Khalid U, Rasheed T, Iqbal HM, Murugesan T. Effect of protic ionic liquid treatment on the pyrolysis products of lignin extracted from oil palm biomass. Fuel 2021. [DOI: 10.1016/j.fuel.2021.120133] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Haque R, Kabir K, Hossain M, Habib MB, Khan AS, Hasan MJ. Knowledge of Stroke and its Risk Factors among Stroke Survivors: A Hospital Based Study. Mymensingh Med J 2021; 30:376-386. [PMID: 33830117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Significant variations observed in stroke incidence, risk factors and sufferings between high & resource poor countries. Considering lack of study in our country perspective, the study was designed to assess the knowledge of stroke and its risk factors among stroke survivors in Bangladeshi population. This hospital based cross-sectional study was conducted at the Department of Medicine and Department of Neurology in Uttara Adhunik Medical College & Hospital (UAMCH), Dhaka, Bangladesh. Patients aged >18 years who were admitted with stroke (Ischemic and hemorrhagic) were included in the study. Before enrollment informed consent was ensured. Total 50 patients were interviewed and assessed. Separate case record form was used during data collection. Final analysis was done by SPSS 22.00 version software. A 'good' knowledge of stroke was defined by correct answer to ≥4 out of 7 questions about location, cause, risk factor, warning sign, treatment, complication and prevention of stroke. Among 50 stroke survivors, mean age was 58.34±12.90 (SD) years. Male-female ratio was 1.08:1. Overall 78% patients had good knowledge of stroke. Brain was correctly identified as center of stroke by 52% stroke survivors and disturbance of blood supply to brain as a cause of stroke was recognized by 12%. Stress was the most common risk factor identified (50%). At least one warning sign was identified by 76% stroke survivors. Seventy-four percent stroke survivors knew that they have to be taken to nearest health facility and if possible, in hospital where neurological care is available. Only 4% knew about the golden hour of taking the stroke patient. On average knowledge about treatment, complication and prevention of stroke was good. Stroke knowledge was not significantly associated with demographic and socio-economic profile of stroke survivors. More than two thirds of the patients had knowledge regarding stroke and its risk factors but no uniform pattern of knowledge is noticed.
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Affiliation(s)
- R Haque
- Dr Rashimul Haque, Associate Professor & Head, Department of Neuro-medicine, Uttara Adhunik Medical College & Hospital, Dhaka, Bangladesh; E-mail:
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Khan AS, Ibrahim TH, Jabbar NA, Khamis MI, Nancarrow P, Mjalli FS. Ionic liquids and deep eutectic solvents for the recovery of phenolic compounds: effect of ionic liquids structure and process parameters. RSC Adv 2021; 11:12398-12422. [PMID: 35423754 PMCID: PMC8697206 DOI: 10.1039/d0ra10560k] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/15/2021] [Indexed: 11/21/2022] Open
Abstract
Water pollution is a severe and challenging issue threatening the sustainable development of human civilization. Besides other pollutants, waste fluid streams contain phenolic compounds. These have an adverse effect on the human health and marine ecosystem due to their toxic, mutagenic, and carcinogenic nature. Therefore, it is necessary to remove such phenolic pollutants from waste stream fluids prior to discharging to the environment. Different methods have been proposed to remove phenolic compounds from wastewater, including extraction using ionic liquids (ILs) and deep eutectic solvent (DES), a class of organic salts having melting point below 100 °C and tunable physicochemical properties. The purpose of this review is to present the progress in utilizing ILs and DES for phenolic compound extraction from waste fluid streams. The effects of IL structural characteristics, such as anion type, cation type, alkyl chain length, and functional groups will be discussed. In addition, the impact of key process parameters such as pH, phenol concentration, phase ratio, and temperature will be also described. More importantly, several ideas for addressing the limitations of the treatment process and improving its efficiency and industrial viability will be presented. These ideas may form the basis for future studies on developing more effective IL-based processes for treating wastewaters contaminated with phenolic pollutants, to address a growing worldwide environmental problem.
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Affiliation(s)
- Amir Sada Khan
- Department of Chemical Engineering, College of Engineering, American University of Sharjah P.O. Box 26666 Sharjah United Arab Emirates .,Department of Chemistry, University of Science & Technolgy Banuu-28100 Khyber Pakhthunkhwa Pakistan
| | - Taleb H Ibrahim
- Department of Chemical Engineering, College of Engineering, American University of Sharjah P.O. Box 26666 Sharjah United Arab Emirates
| | - Nabil Abdel Jabbar
- Department of Chemical Engineering, College of Engineering, American University of Sharjah P.O. Box 26666 Sharjah United Arab Emirates
| | - Mustafa I Khamis
- Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah P.O. Box 26666 Sharjah United Arab Emirates
| | - Paul Nancarrow
- Department of Chemical Engineering, College of Engineering, American University of Sharjah P.O. Box 26666 Sharjah United Arab Emirates
| | - Farouq Sabri Mjalli
- Petroleum & Chemical Engineering Department, Sultan Qaboos University Muscat 123 Oman
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Azam M, Qadri R, Aslam A, Khan MI, Khan AS, Anwar R, Ghani MA, Ejaz S, Hussain Z, Iqbal MA, Chen J. Effects of different combinations of N, P and K at different time interval on vegetative, reproductive, yield and quality traits of mango (Mangifera Indica. L) cv. Dusehri. BRAZ J BIOL 2021; 82:e235612. [PMID: 33681899 DOI: 10.1590/1519-6984.235612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 07/07/2020] [Indexed: 11/22/2022] Open
Abstract
The experiment was carried out on mango cv. Dusehri to investigate the effect of N, P and K fertilizers on vegetative, reproductive growth, yield and fruit quality. Eight different fertilizer combinations such as T1 (control), T2 (N), T3 (P), T4 (K), T5 (NP), T6 (NK), T7 (PK) and T8 (NPK) were used. Individual or combine fertilizer application of N (1000 g), P (750 g) and K (750 g) were applied during growing season in February and August. All the treatments significantly influenced on vegetative growth, flowering, fruiting, yield and other physiochemical attributes of mango as compared to control. Least effect was observed with individual fertilizer application while combine fertilizer treatments enhanced most of the investigated parameters. Especially, qualitative traits showed non-significant differences between treated and untreated mango trees. However, among the different treatments T8 (NPK) showed significance for fruiting aspects such as maximum size of growth flushes (177.51 mm), total number of panicles/tree (845), total number of flowers/panicle (974), sex ratio (69.18%), fruit retention (13.85%), total number of fruits/tree (379), yield (82 kg/tree), fruit weight (197.5 g), pulp weight (135.5 g) and physiochemical parameters namely TSS (24.53), Vit. C (57.63 mg/100 mL) and total sugar (20.84%). In general, combine application of NPK (T8) were the most effective in enhancing fruiting aspects, yield, physiochemical characteristics as well as improved fruit quality of mango trees.
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Affiliation(s)
- M Azam
- University of Agriculture, Institute of Horticultural Sciences, Faisalabad, Pakistan
| | - R Qadri
- University of Agriculture, Institute of Horticultural Sciences, Faisalabad, Pakistan
| | - A Aslam
- Chinese Academy of Agricultural Sciences, Zhengzhou Fruit Research Institute, Zhengzhou, Henan, China
| | - M I Khan
- University of Agriculture, Institute of Soil and Environmental Sciences, Faisalabad, Pakistan
| | - A S Khan
- University of Agriculture, Institute of Horticultural Sciences, Faisalabad, Pakistan
| | - R Anwar
- University of Agriculture, Institute of Horticultural Sciences, Faisalabad, Pakistan
| | - M A Ghani
- University of Agriculture, Institute of Horticultural Sciences, Faisalabad, Pakistan
| | - S Ejaz
- Bahauddin Zakariya University, Department of Horticulture, Multan, Pakistan
| | - Z Hussain
- University of Sargodha, College of Agriculture, Sargodha, Pakistan
| | - M A Iqbal
- Barani Agricultural Research Institute, Chakwal, Pakistan
| | - J Chen
- Chinese Academy of Tropical Agricultural Sciences, Haikou Experimental Station, Hainan Key Laboratory of Banana Genetic Improvement, Haikou, China
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22
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Khan AS, Ibrahim TH, Khamis MI, Nancarrow P, Jabbar NA. Role of cation and alkyl chain length on the extraction of phenol from aqueous solution using NTf2-based ionic liquids: Experimental and computational analysis. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115305] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sakina, Khan AS, Nasrullah A, Ullah F, Muhammad N, Kubra S, Din IU, Mutahir Z. Effect of imidazolium's ionic liquids with different anions and alkyl chain length on phytotoxicity and biochemical analysis of maize seedling. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114491] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Hasan MJ, Tabssum T, Ambia NE, Zaman MS, Rahman M, Khan AS. Mental Health of the COVID-19 Patients in Bangladesh. Mymensingh Med J 2021; 30:189-195. [PMID: 33397873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The mental health aspect of coronavirus disease-19 (COVID-19) patients in Bangladesh has remained less focused and has not been addressed properly. The objective of the study was to assess the levels of anxiety and depression in COVID-19 patients. We adopted a mixed online and telephone-based survey using Google Forms. Recruitment was performed through a snowball sampling approach. The Google Form was initially circulated in Facebook to identify interested participants. Then, three trained physicians interviewed the online responders over telephone for a period spanning from April 2020 to June 2020. Two well-known questionnaires, the Generalized Anxiety Disorder 7-item (GAD-7) scale and the Patient Health Questionnaire (PHQ-9), were used for the assessment of anxiety and depression, respectively. Here, the severity of anxiety was classified with the standard thresholds: minimal or none (0-4), mild (5-9), moderate (10-14) and severe (>15) for the GAD-7. Depression severity score: 0-4 was considered as none or no depression, 5-9: mild, 10-14: moderate, 15-19: moderately severe, 20-27 was for severe depression. A total of 237 patients were finally analyzed. The mean age ±SD of the patients was 41.59±13.73 years. Most of them were male (73%) and lived in urban areas (90.29%). Half of the patients were unemployed, and 17.7% admitted loss of job due to lockdown. The overall prevalence of anxiety and depression was 55.7% and 87.3%, respectively. The mean GAD-7 score was 5.79±4.95, and the mean PHQ-9 score was 5.64±5.15. Among the depressive patients, 3% had minimal depression, 38.4% had mild depression, 32.1% had moderate depression, 11.8% had moderate depression, and 2.1% had a severe depression. Similarly, 37.1%, 10.5% and 8% had mild, moderate and severe levels of anxiety, respectively. Nearly half of the study population (47.7%) was suffering from both depression and anxiety. Living in urban area was an independent predictor for depression (OR 3.882; CI: 1.249-12.069). Considering the high comorbid burden, the mental health issues of these patients need to be addressed and reinforced to the existing health system on a priority basis.
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Affiliation(s)
- M J Hasan
- Dr Mohammad Jahid Hasan, Executive Director, Pi Research Consultancy Center, Dhaka, Bangladesh; E-mail:
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Asiri T, Almutairi M, Alkhushail A, Al-Asiri N, Meraya AM, Khan AS, Alotaiby M, Mubarak Mahmoud M, Almoghairi A, Al-Amri H. P272 The need for vasodilators use prior to transradial cardiac catheterization in high volume cardiac center. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
This study received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors
Background
Radial artery spasm (RAS) is one of the most common complication encountered by operators while performing trans-radial artery cardiac catheterization. Due to the technological advances in recent years and the increase number of experts in high volume centers, the prophylactic use of vasodilators may be unnecessary. To date, there are no clear recommendations for using these vasodilators and when to be used in day to day practice. Basically, It depends on operators discretion and hospital protocol. Therefore, further research in this area is warranted due to the conflicting findings of the prior studies.
purpose
To evaluate the need of using prophylactic vasodilators prior to trans-radial approach in high volume cardiac center and to identify factors associated with the development of RAS.
Methods
It is a prospective, randomized, double blind and placebo-controlled trial conducted in a single high volume cardiac center in Saudi Arabia from July to November 2017. Patients who met the inclusion criteria were randomized to either a cocktail vasodilators (nitroglycerin and verapamil) or matching placebo (normal saline) in 1:1 ratio. Subjective definition of RAS was utilized, consistent with previous studies. The primary outcome is the development of RAS in both groups. The secondary outcome is identifying the factors associated with the development of RAS. The calculated sample size is 315 patients. Data analysis was performed using SPSS 20 and STATA 15 softwares. Multiple stepwise logistic regression was used to examine the association between the study variables and incidence of RAS.
Results
A total of 490 patients were randomized (244 in placebo and 246 in treatment groups). There were no differences in the baseline demographic and clinical characteristics between both groups. Significantly, higher proportion of patients on the placebo group had RAS compared to those on the treatment group (23% vs 11%; p = 0.001). After controlling for the other factors, patients on the treatment were less likely to develop RAS than those on the placebo (OR= 0.32; p <0.001). The independent risk factors associated with the occurrence of RAS are: female gender (OR= 6.18; p <0.001), multiple puncture attempts (OR= 2.83; p = 0.003), current smoking (OR= 3.02; p =0.03) and using dihydropyridine calcium channel blockers (OR= 4.60; p <0.001). We did not find a significant relationship between operators’ level of experience and the occurrence of RAS.
Conclusion
The use of cocktail vasodilators reduces the incidence of RAS regardless to the hospital volume and operators experience. Further studies on factors associated with RAS is warranted.
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Affiliation(s)
- T Asiri
- Prince Sultan Cardiac Center, Riyadh, Saudi Arabia
| | - M Almutairi
- Prince Sultan Cardiac Center, Riyadh, Saudi Arabia
| | - A Alkhushail
- Prince Sultan Cardiac Center, Riyadh, Saudi Arabia
| | - N Al-Asiri
- Prince Sultan Cardiac Center, Riyadh, Saudi Arabia
| | - A M Meraya
- Jazan University, Pharmacy College, Jazan, Saudi Arabia
| | - A S Khan
- Prince Sultan Cardiac Center, Riyadh, Saudi Arabia
| | - M Alotaiby
- Prince Sultan Cardiac Center, Riyadh, Saudi Arabia
| | | | - A Almoghairi
- Prince Sultan Cardiac Center, Riyadh, Saudi Arabia
| | - H Al-Amri
- Prince Sultan Cardiac Center, Riyadh, Saudi Arabia
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Asim AM, Uroos M, Naz S, Sultan M, Griffin G, Muhammad N, Khan AS. Acidic ionic liquids: Promising and cost-effective solvents for processing of lignocellulosic biomass. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.110943] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [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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27
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Alam F, Joarder AI, Nahid A, Debnath BC, Masud Rana AM, Biswas PK, Khan AS, Jalal MT, Karim SS. Nodular Mucinosis of Male Breast: A Rare Case Report. Mymensingh Med J 2019; 28:699-704. [PMID: 31391448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Multinodular accumulation of stromal mucin in breast known as nodular mucinosis is an extremely rare condition of breast. Alternatively it is known as myxoma or nerve sheath myxoma of breast. This benign lesion is confined to only nipple and areola region presenting as slow growing, soft and non tender lobulated mass. Histopathologically it reveals well circumscribed non-encapsulated myxoid/mucinous lesion with few infiltration of spindle cells within a collaginized stroma. The mucinous substance is stained positively with Alcian blue. Mucinous carcinoma or phylloids tumour are important differential diagnosis of nodular mucinosis of breast. Here we report a case of nodular mucinosis of male breast with clinical, radiological and pathological findings with differential diagnosis and treatment modalities.
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Affiliation(s)
- F Alam
- Dr Ferdous Alam, Assistant Professor, Department of Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh; E-mail:
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Joarder AI, Alam F, Islam MA, Debnath BC, Masud Rana AM, Biswas PK, Khan AS, Karim SS, Uddin MB. Laparoscopic Adrenalectomy: Two Years Experience at Bangabandhu Sheikh Mujib Medical University. Mymensingh Med J 2019; 28:641-646. [PMID: 31391438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Laparoscopic surgery has become an efficient tool for many complex surgical procedures. In last decades, laparoscopic adrenalectomy has become a more viable option for removal of adrenal pathology, with many surgeons preferring it to the conventional open technique. This study was done to evaluate the outcomes of lateral transperitoneal adrenalectomy (LTA) in our department and evaluate the feasibility of lateral transperitoneal adrenalectomy (LTA) in our perspective. This study is case series observational study carried out at Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh from March 2015 to May 2017. Suspected primary adrenal malignancies were excluded. Seventeen (17) patients (10 male and 7 females with mean age of 35.29 years) underwent 18 adrenalectomy (one bilateral). Seventeen (17) adrenal tumours were resected through laparoscopy and one adrenal tumour is resected through open approach due to conversion. All the patients underwent hormonal evaluation, ultrasonogram and computed tomography of whole abdomen. Ten (10) patients (58.82%) had hormonal active adrenal mass. Seven (7) patients (41.18%) were asymptomatic of which 2 had associated cholelithiasis, 7 patients had generalized weakness, 3 had weight gain with Cushing syndrome (one drug induced) and one had Hirsutism with musculanizing effect. Nine (9) patients had hypertension and 6 patients had diabetes mellitus. Eight (8) right, 8 left and 1 bilateral LTA were performed. The mean age of the patients were 35.29 years, adrenal tumour size ranges from 15-65mm and operation time ranges from 75-120 minutes for unilateral adrenalectomies and 220 minutes for bilateral adrenalectomy. Estimated blood loss ranges from 30 to 130 ml in 16 cases and in one case it was 220 ml in which conversion was done. Mean post operative stay in hospital was 3.94 days. In 16 cases no major or minor complications were observed but in one case due to haemorrhage and infiltration of the tumour to kidney conversion are done in the form of right adrenalectomy with upper partial nephrectomy (Histopathology revealed angiomyolipoma). In pathological examination 9 patients (52.94%) had adrenocortical adenoma, 2 patients (11.76%) had phaeochromocytoma including bilateral one, 2 patients (11.76%) had myolipoma of which one converted to open, 2 patients (11.76%) had adrenocortical hyperplasia, one patient (5.88%) had adrenal cyst and one patient (5.88%) had haemorrhagic cyst. LTA is a safe and efficient minimally invasive treatment options for both secreting and non secreting adrenal masses. The procedure has a learning curve and should be performed by a surgeon experienced in both open and laparoscopic adrenal surgery.
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Affiliation(s)
- A I Joarder
- Dr Md Aminul Islam Joarder, Associate Professor, Department of Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
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Chowdhury MM, Khan AS, Karim R, Zeba IJ, Mohammed S, Haque MM, Farmidi AA. Porcelain Gallbladder: A Case Report. Mymensingh Med J 2019; 28:694-698. [PMID: 31391447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
"Porcelain gallbladder" term has been used to highlight the blue staining and fragile consistency of the gallbladder wall at surgery. Some authorities avoid these terms and alternately call all calcified gallbladders "porcelain gallbladders". It is a morphological deviation of chronic cholecystitis. Inflammatory scarring of the wall combined with dystrophic calcification inside the wall transforms the gallbladder into a porcelain-like container. In porcelain gallbladder patients are usually asymptomatic and the condition is usually noted incidentally on plain abdominal radiographs, sonograms, or computed tomography (CT) images. Porcelain gallbladder is a rare condition; recognizing the clinical and imaging characteristics of the disease is important because of the high frequency (22%) of adenocarcinoma in porcelain gallbladder. Operation should not be delayed even if the patient is asymptomatic, because the incidence of carcinoma in porcelain gallbladder is extremely high. Here we present a case of 45 years old lady with porcelain gallbladder who was initially diagnosed as a case of carcinoma gallbladder at Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh on 5th August 2017. But she was found to have a benign gallbladder after cholecystectomy.
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Affiliation(s)
- M M Chowdhury
- Professor Md Mohsen Chowdhury, Professor & Head of Yellow Unit II, Department of Hepatobiliary & Pancreatic Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh; E-mail:
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30
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Tayyab Z, Safi SZ, Rahim A, Khan AS, Sharif F, Khan ZUH, Rehman F, Ullah Z, Iqbal J, Muhammad N. Preparation of cellulosic Ag-nanocomposites using an ionic liquid. Journal of Biomaterials Science, Polymer Edition 2019; 30:785-796. [DOI: 10.1080/09205063.2019.1605869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Zuhra Tayyab
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Sher Zaman Safi
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Abdur Rahim
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Amir Sada Khan
- Department of Chemistry, University of Science and Technology, Bannu, Pakistan
| | - Faiza Sharif
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Zia Ul Haq Khan
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan
| | - Fozia Rehman
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Zahoor Ullah
- Department of Chemistry, Balochistan University of IT, Engineering and Management Sciences (BUITEMS), Takatu Campus, Quetta, Pakistan
| | - Jibran Iqbal
- College of Natural and Health Sciences, Zayed University, Abu Dhabi, UAE
| | - Nawshad Muhammad
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
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Sarwono A, Man Z, Idris A, Khan AS, Muhammad N, Wilfred CD. Optimization of ionic liquid assisted sugar conversion and nanofiltration membrane separation for 5-hydroxymethylfurfural. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.09.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Iqbal J, Muhammad N, Rahim A, Khan AS, Ullah Z, Gonfa G, Ahmad P. COSMO-RS predictions, hydrogen bond basicity values and experimental evaluation of amino acid-based ionic liquids for lignocellulosic biomass dissolution. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.10.044] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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33
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Sardar S, Wilfred CD, Mumtaz A, Leveque JM, Khan AS, Krishnan S. Physicochemical properties, Brönsted acidity and ecotoxicity of imidazolium-based organic salts: Non-toxic variants of protic ionic liquids. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.08.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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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Prokopchuk-Gauk O, Khan AS, Misskey S, Lyon ME, Lyon AW. Transient hepatitis B immunity passively acquired from transfusion of packed red blood cells. Transfus Med 2018; 28:462-464. [PMID: 30311289 DOI: 10.1111/tme.12560] [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: 02/11/2018] [Revised: 08/10/2018] [Accepted: 09/12/2018] [Indexed: 11/28/2022]
Affiliation(s)
- O Prokopchuk-Gauk
- Department of Pathology and Laboratory Medicine, Saskatchewan Health Authority, College of Medicine, University of Saskatchewan, Saskatoon, Canada
| | - A S Khan
- Department of Pathology and Laboratory Medicine, Saskatchewan Health Authority, College of Medicine, University of Saskatchewan, Saskatoon, Canada
| | - S Misskey
- Department of Pathology and Laboratory Medicine, Saskatchewan Health Authority, College of Medicine, University of Saskatchewan, Saskatoon, Canada
| | - M E Lyon
- Department of Pathology and Laboratory Medicine, Saskatchewan Health Authority, College of Medicine, University of Saskatchewan, Saskatoon, Canada
| | - A W Lyon
- Department of Pathology and Laboratory Medicine, Saskatchewan Health Authority, College of Medicine, University of Saskatchewan, Saskatoon, Canada
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35
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Iqbal B, Muhammad N, Rahim A, Iqbal F, Sharif F, Safi SZ, Khan AS, Gonfa G, Uroos M, Rehman IU. Development of collagen/PVA composites patches for osteochondral defects using a green processing of ionic liquid. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1474358] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Bushra Iqbal
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Nawshad Muhammad
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Abdur Rahim
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Farasit Iqbal
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Faiza Sharif
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Sher Zaman Safi
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Amir Sada Khan
- Department of Chemical Engineering, Center for Research in Ionic Liquids, Universiti Teknologi PETRONAS (UTP), Tronoh, Perak, Malaysia
| | - Girma Gonfa
- College of Biological and Chemical Engineering Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
| | - Maliha Uroos
- Department of Chemistry, University of the Punjab, Lahore, Pakistan
| | - Ihtesham Ur Rehman
- Department of Materials Science & Engineering, Kroto Research Institute, University of Sheffield, Sheffield, United Kingdom
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36
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Sarwono A, Man Z, Bustam MA, Subbarao D, Idris A, Muhammad N, Khan AS, Ullah Z. Swelling mechanism of urea cross-linked starch-lignin films in water. Environ Technol 2018; 39:1522-1532. [PMID: 28524800 DOI: 10.1080/09593330.2017.1332108] [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: 02/21/2017] [Accepted: 05/13/2017] [Indexed: 06/07/2023]
Abstract
Coating fertilizer particles with thin films is a possibility to control fertilizer release rates. It is observed that novel urea cross-linked starch-lignin composite thin films, prepared by solution casting, swell on coming into contact with water due to the increase in volume by water uptake by diffusion. The effect of lignin content, varied from 0% to 20% in steps of 5% at three different temperatures (25°C, 35°C and 45°C), on swelling of the film was investigated. By gravimetric analysis, the equilibrium water uptake and diffusion coefficient decrease with lignin content, indicating that the addition of lignin increases the hydrophobicity of the films. When temperature increases, the diffusion coefficient and the amount of water absorbed tend to increase. Assuming that swelling of the thin film is by water uptake by diffusion, the diffusion coefficient is estimated. The estimated diffusion coefficient decreases from 4.3 to 2.1 × 10-7 cm2/s at 25°C, from 5.3 to 2.9 × 10-7 cm2/s at 35°C and from 6.2 to 3.8 × 10-7 cm2/s at 45°C depending on the lignin content. Activation energy for the increase in diffusion coefficient with temperature is observed to be 16.55 kJ/mol. An empirical model of water uptake as a function of percentage of lignin and temperature was also developed based on Fick's law.
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Affiliation(s)
- Ariyanti Sarwono
- a Chemical Engineering Department , Centre of Research in Ionic Liquids (CORIL), Universiti Teknologi PETRONAS (UTP) , Bandar Seri Iskandar , Perak , Malaysia
| | - Zakaria Man
- a Chemical Engineering Department , Centre of Research in Ionic Liquids (CORIL), Universiti Teknologi PETRONAS (UTP) , Bandar Seri Iskandar , Perak , Malaysia
| | - M Azmi Bustam
- a Chemical Engineering Department , Centre of Research in Ionic Liquids (CORIL), Universiti Teknologi PETRONAS (UTP) , Bandar Seri Iskandar , Perak , Malaysia
| | - Duvvuri Subbarao
- a Chemical Engineering Department , Centre of Research in Ionic Liquids (CORIL), Universiti Teknologi PETRONAS (UTP) , Bandar Seri Iskandar , Perak , Malaysia
| | - Alamin Idris
- a Chemical Engineering Department , Centre of Research in Ionic Liquids (CORIL), Universiti Teknologi PETRONAS (UTP) , Bandar Seri Iskandar , Perak , Malaysia
| | - Nawshad Muhammad
- b Interdisciplinary Research Centre in Biomedical materials, COMSATS Institute of Information Technology , Lahore , Pakistan
| | - Amir Sada Khan
- a Chemical Engineering Department , Centre of Research in Ionic Liquids (CORIL), Universiti Teknologi PETRONAS (UTP) , Bandar Seri Iskandar , Perak , Malaysia
| | - Zahoor Ullah
- a Chemical Engineering Department , Centre of Research in Ionic Liquids (CORIL), Universiti Teknologi PETRONAS (UTP) , Bandar Seri Iskandar , Perak , Malaysia
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Khan MT, Malik SI, Bhatti AI, Ali S, Khan AS, Zeb MT, Nadeem T, Fazal S. Pyrazinamide-resistant mycobacterium tuberculosis isolates from Khyber Pakhtunkhwa and rpsA mutations. J BIOL REG HOMEOS AG 2018; 32:705-709. [PMID: 29921403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Pyrazinamide (PZA) is a key first-line antibiotic used for the short-course treatment of drug-sensitive and multidrug-resistant (MDR) isolates of tuberculosis. PZA exhibits potent action against semi-dormant bacilli in acidic environments. However, mutations that occur in target genes may cause technical difficulties in the diagnosis of PZA resistance during drug susceptibility testing. The objective of the current study is to identify mutations in pncAWT rpsA and rpsAWT panD genes among PZA-resistant isolates of Mycobacterium tuberculosis (MTB) circulating in the Pashtun dominant region, Khyber Pakhtunkhwa, Pakistan. We selected 18 PZA-resistant pncAWT strains from the Provincial Tuberculosis Reference Laboratory (PTRL) Khyber Pakhtunkhwa to investigate mutations in the coding region of rpsA and panD genes. The experiments were repeated for drug susceptibility testing using MGIT 960 automated system. In addition, eighteen PZA-resistant rpsA genes along with 5 susceptible strains and one H37Rv strain were sequenced. All 18 isolates were PZA-resistant. The majority of these isolates exhibited multidrug resistance (MDR) (13/18). We identified 14 non-synonymous and one synonymous mutation in the coding region of rpsA in 11 strains. All mutations were scattered throughout the gene and not reported previously. Further, we did not identify any mutation in 7 rpsAWT panD genes. Mutations in rpsA but not in panD occur in PZA-resistant pncAWT MTB isolates circulating in Khyber Pakhtunkhwa, Pakistan.
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Affiliation(s)
- M T Khan
- Department of Bioinformatics and Biosciences, Capital University of Science and Technology, Islamabad Pakistan
| | - S I Malik
- Department of Bioinformatics and Biosciences, Capital University of Science and Technology, Islamabad Pakistan
| | - A I Bhatti
- Department of Electrical Engineering, Capital University of Science and Technology, Islamabad, Pakistan
| | - S Ali
- Provincial Tuberculosis Reference Laboratory Peshawar, Pakistan
| | - A S Khan
- Provincial Tuberculosis Reference Laboratory Peshawar, Pakistan
| | - M T Zeb
- Veterinary Research Institute, Khyber Pakhtunkhwa, Pakistan
| | - T Nadeem
- National Center of Excellence in Molecular Biology, University of The Punjab, Lahore, Pakistan
| | - S Fazal
- Department of Bioinformatics and Biosciences, Capital University of Science and Technology, Islamabad Pakistan
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Ghanem OB, Shah SN, Lévêque JM, Mutalib MIA, El-Harbawi M, Khan AS, Alnarabiji MS, Al-Absi HRH, Ullah Z. Study of the antimicrobial activity of cyclic cation-based ionic liquids via experimental and group contribution QSAR model. Chemosphere 2018; 195:21-28. [PMID: 29248749 DOI: 10.1016/j.chemosphere.2017.12.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 11/29/2017] [Accepted: 12/04/2017] [Indexed: 06/07/2023]
Abstract
Over the past decades, Ionic liquids (ILs) have gained considerable attention from the scientific community in reason of their versatility and performance in many fields. However, they nowadays remain mainly for laboratory scale use. The main barrier hampering their use in a larger scale is their questionable ecological toxicity. This study investigated the effect of hydrophobic and hydrophilic cyclic cation-based ILs against four pathogenic bacteria that infect humans. For that, cations, either of aromatic character (imidazolium or pyridinium) or of non-aromatic nature, (pyrrolidinium or piperidinium), were selected with different alkyl chain lengths and combined with both hydrophilic and hydrophobic anionic moieties. The results clearly demonstrated that introducing of hydrophobic anion namely bis((trifluoromethyl)sulfonyl)amide, [NTF2] and the elongation of the cations substitutions dramatically affect ILs toxicity behaviour. The established toxicity data [50% effective concentration (EC50)] along with similar endpoint collected from previous work against Aeromonas hydrophila were combined to developed quantitative structure-activity relationship (QSAR) model for toxicity prediction. The model was developed and validated in the light of Organization for Economic Co-operation and Development (OECD) guidelines strategy, producing good correlation coefficient R2 of 0.904 and small mean square error (MSE) of 0.095. The reliability of the QSAR model was further determined using k-fold cross validation.
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Affiliation(s)
- Ouahid Ben Ghanem
- Faculty of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak Malaysia.
| | - Syed Nasir Shah
- Department of Chemical Engineering, COMSATS Institute of Information Technology, Lahore, Pakistan
| | | | - M I Abdul Mutalib
- Faculty of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak Malaysia
| | - Mohanad El-Harbawi
- Chemical Engineering Department, King Saud University, Riyadh 11421, Saudi Arabia
| | - Amir Sada Khan
- Centre of Research in Ionic Liquids (CORIL), Department of Chemical Engineering, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak, Malaysia; Department of Chemistry, University of Science and Technology, Bannu 28100, Khyber Pakhtunkhwa, Pakistan
| | - Mohamad Sahban Alnarabiji
- Faculty of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak Malaysia
| | - Hamada R H Al-Absi
- Faculty of Engineering, Computing and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350 Kuching, Sarawak, Malaysia
| | - Zahoor Ullah
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam; Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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Khan AS, Man Z, Bustam MA, Nasrullah A, Ullah Z, Sarwono A, Shah FU, Muhammad N. Efficient conversion of lignocellulosic biomass to levulinic acid using acidic ionic liquids. Carbohydr Polym 2018; 181:208-214. [DOI: 10.1016/j.carbpol.2017.10.064] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 10/14/2017] [Accepted: 10/19/2017] [Indexed: 11/28/2022]
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Iqbal B, Muhammad N, Jamal A, Ahmad P, Khan ZUH, Rahim A, Khan AS, Gonfa G, Iqbal J, Rehman IU. An application of ionic liquid for preparation of homogeneous collagen and alginate hydrogels for skin dressing. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.08.101] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Ullah Z, Bustam MA, Man Z, Khan AS, Muhammad N, Sarwono A, Farooq M, Ullah R, Mengal AN. A Detail Description on Catalytic Conversion of Waste Palm Cooking Oil into Biodiesel and Its Derivatives: New Functionalized Ionic Liquid Process. ChemistrySelect 2017. [DOI: 10.1002/slct.201701099] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Zahoor Ullah
- Centre of Research in Ionic Liquids; Department of Chemical Engineering Universiti, Teknologi PETRONAS; Tronoh 31750 Malaysia
- Department of Chemistry; Balochistan University of IT; Engineering and Management Sciences (BUITEMS), Takatu Campus; Quetta- 87100 Pakistan
| | - Mohamad Azmi Bustam
- Centre of Research in Ionic Liquids; Department of Chemical Engineering Universiti, Teknologi PETRONAS; Tronoh 31750 Malaysia
| | - Zakaria Man
- Centre of Research in Ionic Liquids; Department of Chemical Engineering Universiti, Teknologi PETRONAS; Tronoh 31750 Malaysia
| | - Amir Sada Khan
- Centre of Research in Ionic Liquids; Department of Chemical Engineering Universiti, Teknologi PETRONAS; Tronoh 31750 Malaysia
- Department of Chemistry; University of Science and Technology; Bannu 28100, Khyber Pakhtunkhwa Pakistan
| | - Nawshad Muhammad
- Interdisciplinary Research Centre in Biomedical Materials; COMSATS Institute of Information Technology; Lahore 54000 Pakistan
| | - Ariyanti Sarwono
- Centre of Research in Ionic Liquids; Department of Chemical Engineering Universiti, Teknologi PETRONAS; Tronoh 31750 Malaysia
| | - Muhammad Farooq
- National Centre of Excellence in Physical Chemistry; University of Peshawar; Peshawar 25120 Pakistan
| | - Riaz Ullah
- Department of Pharmacognosy (Medicinal, Aromatic and Poisonous Plants Research Center); College of Pharmacy King Saud University Riyadh Saudi Arabia
| | - Ali Nawaz Mengal
- Mechanical Engineering Department; Balochistan University of IT; Engineering and Management Sciences (BUITEMS), Takatu Campus; Quetta- 87100 Pakistan
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Sarwono A, Man Z, Muhammad N, Khan AS, Hamzah WSW, Rahim AHA, Ullah Z, Wilfred CD. A new approach of probe sonication assisted ionic liquid conversion of glucose, cellulose and biomass into 5-hydroxymethylfurfural. Ultrason Sonochem 2017; 37:310-319. [PMID: 28427638 DOI: 10.1016/j.ultsonch.2017.01.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 11/29/2016] [Revised: 12/24/2016] [Accepted: 01/19/2017] [Indexed: 05/20/2023]
Abstract
5-Hydroxymethylfurfural (HMF) has been identified as a promising biomass-derived platform chemical. In this study, one pot production of HMF was studied in ionic liquid (IL) under probe sonication technique. Compared with the conventional heating technique, the use of probe ultrasonic irradiation reduced the reaction time from hours to minutes. Glucose, cellulose and local bamboo, treated with ultrasonic, produced HMF in the yields of 43%, 31% and 13% respectively, within less than 10min. The influence of various parameters such as acoustic power, reaction time, catalysts and glucose loading were studied. About 40% HMF yield at glucose conversion above 90% could be obtained with 2% of catalyst in 3min. Negligible amount of soluble by-product was detected, and humin formation could be controlled by adjusting the different process parameters. Upon extraction of HMF, the mixture of ionic liquid and catalyst could be reused and exhibited no significant reduction of HMF yield over five successive runs. The purity of regenerated [C4C1im]Cl and HMF was confirmed by NMR spectroscopy, indicating neither changes in the chemical structure nor presence of any major contaminants during the conversion under ultrasonic treatment. 13C NMR suggests that [C4C1im]Cl/CrCl3 catalyses mutarotation of α-glucopyranose to β-glucopyranose leading to isomerization and finally conversion to HMF. The experimental results demonstrate that the use of probe sonication technique for conversion to HMF provides a positive process benefit.
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Affiliation(s)
- Ariyanti Sarwono
- Center for Research in Ionic Liquids, Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), 31750 Tronoh, Perak, Malaysia.
| | - Zakaria Man
- Center for Research in Ionic Liquids, Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), 31750 Tronoh, Perak, Malaysia
| | - Nawshad Muhammad
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, Pakistan.
| | - Amir Sada Khan
- Center for Research in Ionic Liquids, Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), 31750 Tronoh, Perak, Malaysia
| | - Wan Suzaini Wan Hamzah
- Center for Research in Ionic Liquids, Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), 31750 Tronoh, Perak, Malaysia
| | - Asyraf Hanim Abdul Rahim
- Center for Research in Ionic Liquids, Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), 31750 Tronoh, Perak, Malaysia
| | - Zahoor Ullah
- Center for Research in Ionic Liquids, Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), 31750 Tronoh, Perak, Malaysia
| | - Cecilia Devi Wilfred
- Center for Research in Ionic Liquids, Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), 31750 Tronoh, Perak, Malaysia
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Muhammad N, Gonfa G, Rahim A, Ahmad P, Iqbal F, Sharif F, Khan AS, Khan FU, Khan ZULH, Rehman F, Rehman IU. Investigation of ionic liquids as a pretreatment solvent for extraction of collagen biopolymer from waste fish scales using COSMO-RS and experiment. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.02.083] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [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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Khan AS, Man Z, Arvina A, Bustam MA, Nasrullah A, Ullah Z, Sarwono A, Muhammad N. Dicationic imidazolium based ionic liquids: Synthesis and properties. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.11.131] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Das BC, Khan AS, Elahi NE, Uddin MS, Debnath BC, Khan ZR. Morbidity and Mortality after Pancreatoduodenectomy: A Five Year Experience in Bangabandhu Sheikh Mujib Medical University. Mymensingh Med J 2017; 26:145-153. [PMID: 28260769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Mortality and morbidity was assessed after adoption of a systematic care for patient with pancreatoduodenectomy starting from patient selection and preparation, operative technique, and postoperative care. In this prospective study seventy patients who underwent pancreatoduodenectomy for periampullary carcinoma with curative intent between January 2010 and December 2014 were carefully analyzed prospectively. Patients were selected those who had ampullary carcinoma, lower bile duct carcinoma and small size carcinoma head of pancreas without local invasion and distant metastasis, and the patient who did not have any major disabling comorbid diseases. All patients were assessed uniformly before surgery and deficiency were corrected up to normal level before operation. Pancreatoduodenectomy and standard lymphadenectomy was performed meticulously with minimum blood loss. The pancreatojejunal reconstruction was performed using duct-to-mucosa method mostly. A nasojejunal feeding tube was placed in most patients for starting postoperative early oral feeding. Broad spectrum antibiotics and the epidural analgesia were mostly prescribed for good control infection and pain. Proper nutrition was maintained in calculative way through central venous line and nasojejunal feeding tube in the early postoperative period. General care, early mobilization and chest physiotherapy were given routinely in each patient. Seventy-seven percent (n=54) patients did not have any postoperative complications and they were discharged from hospital within 12-14 postoperative days. The morbidity occurred in 16 patients (23%) and most common complication was wound infection (18%, n=9). The rest complications were pancreatojejunal anastomotic leakage - 2, hepaticojejunal anastomosis leakage - 1, melaena - 1, intra-abdominal abscess - 1, intra-abdominal hemorrhage - 1, and renal dysfunction - 1. The mortality rate was 5.7% (n=4), causes of death were massive myocardial infarction; 1, failure of reversal from anesthesia; 1, massive intraabdominal bleeding; 1 and CV catheter related severe sepsis; 1. Review of recent published literature revealed that mortality and morbidity our series is better than low volume center and almost similar with high volume center of pancreatoduodenectomy surgery. Our systematic management policy of careful patient selection, planned approach in the form of proper work up, meticulous conduction of the procedure, appropriate postoperative care provides an acceptable morbidity and mortality after pancreatoduodenectomy.
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Affiliation(s)
- B C Das
- Dr Bidhan C Das, Associate Professor, Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh; E-mail:
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Shahzad M, Khan SH, Khan AS, Sajjad M, Rehman A, Khan AI. IDENTIFICATION OF QTLs ON CHROMOSOME 1B FOR GRAIN QUALITY TRAITS IN BREAD WHEAT (TRITICUM AESTIVUM L.). Tsitol Genet 2016; 50:13-20. [PMID: 27281920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The present study was designed considering the importance of grain quality traits, genetic diversity and marker-trait association analysis in wheat. A significant amount of genetic diversity was found for various seed traits though the genotypes included in the study were found structured. The extent of polymorphism was high with a range of 2-13 alleles and average of 6.5 alleles per locus. Population structure was detected with 30 unlinked SSRs that divided the population of 92 genotypes in three sub-populations. Extensive LD extent was found on chromosome 1B with 42 SSRs specific for 1B chromosome. Marker-trait associations were determined using mixed linear model, where, population structure and kinship calculated on the basis of unlinked markers were covariated with 1B specific markers and traits data. Eight QTLs for five traits including protein, gluten contents, test weight bread and chapati making quality. Protein content, test weight, bread quality and Glu-B1 were found significantly associated with primers WMC419 (32 cM); WMC128 (30 cM), WMC419 (32 cM); WMC818 (17 cM) and WMC416 (44 cM), respectively.
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47
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Ferdous J, Ahmed S, Laila R, Islam MT, Rahaman MF, Snigdha KR, Sarkar S, Khan AS, Sarkar AK. Determination of Insulin Secretory Defect and Insulin Sensitivity in Type 2 Diabetic Subjects in Bangladesh. Mymensingh Med J 2016; 25:109-118. [PMID: 26931259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Diabetes mellitus (DM) is defined as a group of metabolic diseases characterized by hyperglycemia resulting from defects in insulin secretion, insulin action, or both. This study was undertaken to explore the basic defect in type 2 diabetes patients in Bangladesh. This was an observational study with case control design, was conducted in the Biomedical Research Group, Research Division, Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine Metabolic Disorders (BIRDEM), Dhaka, Bangladesh, during the period of July 2008 to June 2009. A total of 153 subjects were included in study of which 63 belonged to type 2 diabetes mellitus group and 90 were healthy controls. Fasting and 2 hours postprandial blood glucose, serum insulin, HOMA%B, HOMA%S, QuickI, Glucose /insulin ratio, TG were measured and age, BMI, WHR were recorded. Waist-hip ratio (WHR), was significantly higher in T2DM as compared to control subjects [WHR, mean±SD, 0.94±0.12 vs. 0.88±0.06, p<0.001]; Glucose and insulin ratio of T2DM was significantly higher as compared to control subject [Glu: Ins, Median (range) of 0.54 (0.17-2.33) vs. 0.37(0.06-1.52)]. Insulin secretion (HOMA%B) was significantly lower in diabetic as compared to control subjects [HOMA%B, median (range), 71(4.90-391) vs. 180(59-634) p<0.001]; The quantitative insulin sensitivity check Index (QUICKI) of diabetic subjects were significantly higher as compared to control [QUICKI median (range) 39.90(4.80-138.10) vs. 0.55(0.36-0.85), <0.001]. Triglyceride (TG) and cholesterol (Chol) were significantly higher [(mg/dl), (mean±SD), TG (142±80.14) vs. (142±80.14); Chol (189±50.76) vs. (172±45), p=0.029] in T2DM as compared to control subjects. Those with diabetes showed significant association with insulin secretory defect (HOMA%B, p=0.006) and insulin resistance as assessed by GINR (p<0.001) and QuickI (p<0.001) but not by HOMA%S (p=0.127). The present data suggest that both insulin secretory defect and insulin sensitivity are present in T2 diabetic subjects of Bangladesh.
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Affiliation(s)
- J Ferdous
- Dr Jannatul Ferdous, Assistant Professor, Department of Biochemistry, Northern Medical College, Dhaka, Bangladesh
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Abstract
Pseudoporphyria (PP) is used to describe a photodistributed bullous disorder with clinical and histologic features of porphyria cutanea tarda (PCT) but without accompanying biochemical porphyrin abnormalities. Medications, excessive sun and ultraviolet radiation exposure, have all been reported to develop PP. We report a case of PP in a 49-year-old man with CKD stage 3a, caused due to torsemide intake. This is probably the first reported case of PP developing in a dialysis naive patient CKD due to torsemide intake from India.
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Affiliation(s)
- S Quaiser
- Department of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - R Khan
- Department of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - A S Khan
- Department of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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50
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Gonfa G, Bustam MA, Muhammad N, Khan AS. Evaluation of Thermophysical Properties of Functionalized Imidazolium Thiocyanate Based Ionic Liquids. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b03707] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Girma Gonfa
- Chemical
Engineering Department, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak, Malaysia
| | - Mohamad Azmi Bustam
- Chemical
Engineering Department, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak, Malaysia
| | - Nawshad Muhammad
- Interdisciplinary
Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Amir Sada Khan
- Chemical
Engineering Department, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak, Malaysia
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