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Hussain S, Dong H, Duan H, Ji X, Asif HM, Liu W, Zhang X. Efficient Selective Carbon Dioxide Separation via Task-Specific Ionic Liquids Incorporated in ZIF-8. Langmuir 2024; 40:8636-8644. [PMID: 38602887 DOI: 10.1021/acs.langmuir.4c00412] [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] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Owing to the rapid increase in anthropogenic emission of carbon dioxide (CO2) in the atmosphere, which has resulted in a number of global climate challenges, a decrease in CO2 emissions is urgently needed in the current scenario. This study focuses on the development and characterization of composites for carbon dioxide (CO2) separation. The composites consist of two task-specific ionic liquids (TSILs), namely, tetramethylgunidinium imidazole [TMGHIM] and tetramethylgunidinium phenol [TMGHPhO], impregnated in ZIF-8. The performance of CO2 separation, including sorption capacity and selectivity, was evaluated for pristine ZIF-8 and composites of TMGHIM@ZIF-8 and TMGHPhO@ZIF-8. To demonstrate the thermal stability of the material, thermogravimetric analysis (TGA) was performed. Additionally, powder X-ray diffraction (XRD) and scanning electron microscopy (SEM) were utilized to showcase the crystal structures and morphology. Fourier transform infrared spectroscopy (FTIR) and BET were also utilized to confirm the successful incorporation of TSILs into ZIF-8. The composite synthesized with TMGHIM@ZIF-8 demonstrated superior CO2 sorption performance as compared with TMGHPhO@ZIF-8. This is attributed to its strong attraction toward CO2, resulting in a higher CO2/CH4 selectivity of 110 while pristine MOFs showed 12 that is 9 times higher than that of the pristine ZIF-8. These TSILs@ZIF-8 composites have significant potential in designing sorbent materials for efficient acid gas separation applications.
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Affiliation(s)
- Shahid Hussain
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Energy Engineering, Division of Energy Science, Luleå University of Technology, Luleå 97187, Sweden
| | - Haifeng Dong
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Huizhou Institute of Green Energy and Advanced Materials, Huizhou, Guangdong 516081, China
| | - Huifang Duan
- Huizhou Institute of Green Energy and Advanced Materials, Huizhou, Guangdong 516081, China
| | - Xiaoyan Ji
- Energy Engineering, Division of Energy Science, Luleå University of Technology, Luleå 97187, Sweden
| | - Hafiz Muhammad Asif
- Inorganic Research Laboratory, Institute of Chemical Sciences, Bahaudin Zakriya University Multan, Multan 60800, I.R. Pakistan
| | - Wei Liu
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, Guangdong 529599, China
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China
| | - Xiangping Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, Guangdong 529599, China
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Kakar JK, Hussain S, Kim SC, Kim H. TimeTector: A Twin-Branch Approach for Unsupervised Anomaly Detection in Livestock Sensor Noisy Data (TT-TBAD). Sensors (Basel) 2024; 24:2453. [PMID: 38676070 PMCID: PMC11055079 DOI: 10.3390/s24082453] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024]
Abstract
Unsupervised anomaly detection in multivariate time series sensor data is a complex task with diverse applications in different domains such as livestock farming and agriculture (LF&A), the Internet of Things (IoT), and human activity recognition (HAR). Advanced machine learning techniques are necessary to detect multi-sensor time series data anomalies. The primary focus of this research is to develop state-of-the-art machine learning methods for detecting anomalies in multi-sensor data. Time series sensors frequently produce multi-sensor data with anomalies, which makes it difficult to establish standard patterns that can capture spatial and temporal correlations. Our innovative approach enables the accurate identification of normal, abnormal, and noisy patterns, thus minimizing the risk of misinterpreting models when dealing with mixed noisy data during training. This can potentially result in the model deriving incorrect conclusions. To address these challenges, we propose a novel approach called "TimeTector-Twin-Branch Shared LSTM Autoencoder" which incorporates several Multi-Head Attention mechanisms. Additionally, our system now incorporates the Twin-Branch method which facilitates the simultaneous execution of multiple tasks, such as data reconstruction and prediction error, allowing for efficient multi-task learning. We also compare our proposed model to several benchmark anomaly detection models using our dataset, and the results show less error (MSE, MAE, and RMSE) in reconstruction and higher accuracy scores (precision, recall, and F1) against the baseline models, demonstrating that our approach outperforms these existing models.
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Affiliation(s)
- Junaid Khan Kakar
- Department of Electronics and Information Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea;
- Core Research Institute of Intelligent Robots, Jeonbuk National University, Jeonju 54896, Republic of Korea;
| | - Shahid Hussain
- Innovation Value Institute (IVI), School of Business, National University of Ireland Maynooth (NUIM), W23 F2H6 Maynooth, Ireland;
| | - Sang Cheol Kim
- Core Research Institute of Intelligent Robots, Jeonbuk National University, Jeonju 54896, Republic of Korea;
| | - Hyongsuk Kim
- Core Research Institute of Intelligent Robots, Jeonbuk National University, Jeonju 54896, Republic of Korea;
- Department of Electronics Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
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Shereen MA, Ahmad A, Khan H, Satti SM, Kazmi A, Bashir N, Shehroz M, Hussain S, Ilyas M, Khan MI, Niyazi HA, Zouidi F. Plant extract preparation and green synthesis of silver nanoparticles using Swertia chirata: Characterization and antimicrobial activity against selected human pathogens. Heliyon 2024; 10:e28038. [PMID: 38524534 PMCID: PMC10957427 DOI: 10.1016/j.heliyon.2024.e28038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 03/26/2024] Open
Abstract
Herbal medicinal plants have been used for centuries in traditional medicine, and it is interesting to see how modern research has identified the active compounds responsible for their therapeutic effects. The green synthesis of silver nanoparticles using herbal medicinal plants, such as Swertia chirata, is particularly noteworthy due to its antimicrobial properties. In the current study, the Swertia chirata plant was collected for the first time from the region of Murree, Punjab, Pakistan. After collection, extracts were prepared in different solvents (ethanol, methanol, chloroform, and distilled water), and silver nanoparticles were synthesized by reducing silver nitrate (AgNO3). The UV-visible spectrophotometer, SEM, and EDX were used to characterize the synthesized nanoparticles in terms of their size and shape. The phytochemical analysis of crude extract was performed to determine the presence of different kinds of phytochemicals. The antibacterial activity of plant extracts and the silver nanoparticles were then assessed using the agar well diffusion method against various pathogenic bacteria. The results showed that the plant contains several phytochemicals with remarkable antioxidant potential. The antibacterial analysis revealed that silver nanoparticles and the plant extracts exhibited a significant zone of inhibition against human pathogenic bacteria (Escherichia coli, S. capitis, B. subtilis, and Pseudomonas aeruginosa) as compared to the cefixime and norfloxacin. This implies that the nanoparticles have the potential to be used in nano-medicine applications, such as drug delivery systems, as well as for their antibacterial, antifungal, and antiviral activities. Additionally, the development and application of materials and technologies at the nanometer scale opens possibilities for the creation of novel drugs and therapies. Overall, the study highlights the promising potential of herbal medicinal plants found in Murree, Punjab, Pakistan, and green-synthesized silver nanoparticles in various fields of medicine and nanotechnology.
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Affiliation(s)
| | - Aftab Ahmad
- Department of Microbiology, Kohsar University Murree, Murree, 47150, Pakistan
| | - Hashir Khan
- Department of Microbiology, Kohsar University Murree, Murree, 47150, Pakistan
| | - Sadia Mehmood Satti
- Department of Microbiology, Kohsar University Murree, Murree, 47150, Pakistan
- Alpha Genomics (Pvt), PWD Society, Islamabad, Punjab, Pakistan
| | - Abeer Kazmi
- The State Key Laboratory of Freshwater Ecology and Biotechnology, The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, Hubei, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Nadia Bashir
- Department of Microbiology, College of Life Sciences, Wuhan University, 430072, Wuhan, PR China
| | - Muhammad Shehroz
- Department of Bioinformatics, Kohsar University Murree, Murree, 47150, Pakistan
| | - Shahid Hussain
- Department of Biotechnology, Kohsar University Murree, Murree, 47150, Pakistan
| | - Muhammad Ilyas
- Department of Botany, Kohsar University Murree, Murree, 47150, Pakistan
| | - M. Ijaz Khan
- Department of Mechanical Engineering, Lebanese American University, Kraytem, 1102-2801, Beirut, Lebanon
| | - Hatoon A. Niyazi
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, King Abdulaziz University Jeddah, 21589, Saudi Arabia
| | - Ferjeni Zouidi
- Faculty of Science and Arts, Muhayil Asser, King Khalid University, Saudi Arabia
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Wani SA, Hussain S, Gray JS, Nayak D, Tang H, Perez LM, Long MD, Siddappa M, McCabe CJ, Sucheston-Campbell LE, Freeman MR, Campbell MJ. Epigenetic disruption of the RARγ complex impairs its function to bookmark AR enhancer interactions required for enzalutamide sensitivity in prostate cancer. bioRxiv 2024:2023.12.15.571947. [PMID: 38168185 PMCID: PMC10760102 DOI: 10.1101/2023.12.15.571947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The current study in prostate cancer (PCa) focused on the genomic mechanisms at the cross-roads of pro-differentiation signals and the emergence of lineage plasticity. We explored an understudied cistromic mechanism involving RARγ's ability to govern AR cistrome-transcriptome relationships, including those associated with more aggressive PCa features. The RARγ complex in PCa cell models was enriched for canonical cofactors, as well as proteins involved in RNA processing and bookmarking. Identifying the repertoire of miR-96 bound and regulated gene targets, including those recognition elements marked by m6A, revealed their significant enrichment in the RARγ complex. RARγ significantly enhanced the AR cistrome, particularly in active enhancers and super-enhancers, and overlapped with the binding of bookmarking factors. Furthermore, RARγ expression led to nucleosome-free chromatin enriched with H3K27ac, and significantly enhanced the AR cistrome in G2/M cells. RARγ functions also antagonized the transcriptional actions of the lineage master regulator ONECUT2. Similarly, gene programs regulated by either miR-96 or antagonized by RARγ were enriched in alternative lineages and more aggressive PCa phenotypes. Together these findings reveal an under-investigated role for RARγ, modulated by miR-96, to bookmark enhancer sites during mitosis. These sites are required by the AR to promote transcriptional competence, and emphasize luminal differentiation, while antagonizing ONECUT2.
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Affiliation(s)
- Sajad A Wani
- Division of Pharmaceutics and Pharmacology, The Ohio State University, Columbus, OH 43210
| | - Shahid Hussain
- Division of Cancer Biology, Cedars Sinai Cancer, and Los Angeles, CA 90048
- Board of Governors Innovation Center, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Jaimie S Gray
- Division of Pharmaceutics and Pharmacology, The Ohio State University, Columbus, OH 43210
| | - Debasis Nayak
- Division of Pharmaceutics and Pharmacology, The Ohio State University, Columbus, OH 43210
| | - Hancong Tang
- Division of Pharmaceutics and Pharmacology, The Ohio State University, Columbus, OH 43210
| | - Lillian M Perez
- Division of Cancer Therapeutics, Cedars Sinai Cancer, Departments of Urology and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Mark D Long
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263
| | - Manjunath Siddappa
- Division of Pharmaceutics and Pharmacology, The Ohio State University, Columbus, OH 43210
| | - Christopher J McCabe
- Institute of Metabolism and Systems Research (IMSR), and Centre of Endocrinology, Diabetes and Metabolism (CEDAM), University of Birmingham, Birmingham, UK
| | | | - Michael R Freeman
- Division of Cancer Therapeutics, Cedars Sinai Cancer, Departments of Urology and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Moray J Campbell
- Division of Cancer Biology, Cedars Sinai Cancer, and Los Angeles, CA 90048
- Board of Governors Innovation Center, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048
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Umar A, Akbar S, Kumar R, Amu-Darko JNO, Hussain S, Ibrahim AA, Alhamami MA, Almehbad N, Almas T, Seliem AF. Ce-doped ZnO nanostructures: A promising platform for NO 2 gas sensing. Chemosphere 2024; 349:140838. [PMID: 38043612 DOI: 10.1016/j.chemosphere.2023.140838] [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: 09/02/2023] [Revised: 11/19/2023] [Accepted: 11/26/2023] [Indexed: 12/05/2023]
Abstract
In this comprehensive study, Ce-doped ZnO nanostructures were hydrothermally synthesized with varying Ce concentrations (0.5%, 1.0%, 1.5%, and 2.0%) to explore their gas-sensing capabilities, particularly towards NO2. Structural characterization revealed that as Ce doping increased, crystal size exhibited a slight increment while band gap energies decreased. Notably, the 0.5% Ce-doped ZnO nanostructure demonstrated the highest NO2 gas response of 8.6, underscoring the significance of a delicate balance between crystal size and band gap energy for optimal sensing performance. The selectivity of the 0.5% Ce-doped ZnO nanostructures to NO2 over other gases like H2, acetone, NH3, and CO at a concentration of 100 ppm and an optimized temperature of 250 °C was exceptional, highlighting its discriminatory prowess even in the presence of potential interfering gases. Furthermore, the sensor displayed reliability and reversibility during five consecutive tests, showcasing consistent performance. Long-term stability testing over 30 days revealed that the gas response remained almost constant, indicating the sensor's remarkable durability. In addition to its robustness against humidity variations, maintaining effectiveness even at 41% humidity, the sensor exhibited impressive response and recovery times. While the response time was swift at 11.8 s, the recovery time was slightly prolonged at 56.3 s due to the strong adsorption of NO2 molecules onto the sensing material hindering the desorption process. The study revealed the intricate connection between Ce-doping levels, structure, and gas-sensing. It highlighted the 0.5% Ce-doped ZnO nanostructure as a highly selective, reliable, and durable NO2 gas sensor, with implications for future environmental monitoring and safety.
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Affiliation(s)
- Ahmad Umar
- Department of Chemistry, College of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia; Department of Materials Science and Engineering, The Ohio State University, Columbus, 43210, OH, USA.
| | - Sheikh Akbar
- Department of Materials Science and Engineering, The Ohio State University, Columbus, 43210, OH, USA
| | - Rajesh Kumar
- Department of Chemistry, Jagdish Chandra DAV College, Dasuya, Punjab 144205, India
| | | | - Shahid Hussain
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Ahmed A Ibrahim
- Department of Chemistry, College of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia
| | - Mohsen A Alhamami
- Department of Chemistry, College of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia
| | - Noura Almehbad
- Department of Chemistry, College of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia
| | - Tubia Almas
- Department of Chemistry, College of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia
| | - Amal F Seliem
- Department of Chemistry, College of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia
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Hussain S, Nisar M, Sher H. Taxonomic study and diversity of Postia s.lat. in Swat, Pakistan: addition of five brown rot Polypores to the country. Arch Microbiol 2024; 206:66. [PMID: 38227204 DOI: 10.1007/s00203-023-03795-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 01/17/2024]
Abstract
Brown rot Polypores are ecologically significant as they play a crucial role in maintaining the carbon cycle and contribute to humus formation in forest ecosystems through their lignocellulose degradation ability. It is important to note that some species can significantly impact timber, potentially causing decay in economically valuable wood. Many Asian countries including Pakistan are still under the exploratory phase and have undocumented species diversity in Polypore fungi. In the current study, collections representing five different species belonging to two families, Postiaceae and Adustoporiaceae, were subjected to detailed morphoanatomical and molecular analyses. A combined matrix of two gene datasets (ITS and nrLSU) was analyzed using three different phylogenetic methods viz. Maximum Parsimony (MP), Maximum Likelihood (ML), and Bayesian inference (BI). Our study presents descriptions of five previously undocumented brown rot Polypore species from the country including Fuscopostia fragilis (Fr.) B.K. Cui, L.L. Shen & Y.C. Dai, Amaropostia stiptica (Pers.) B.K. Cui, L.L. Shen & Y.C. Dai, Cyanosporus piceicola B.K. Cui, L.L. Shen & Y.C. Dai, Spongiporus balsameus (Peck) A. David, Rhodonia placenta (Fr.) Niemelä, K.H. Larss. & Schigel. Regarding the molecular data, nodes of our subject sequences were substantially supported and fell under their respective species clades with high ML bootstrap values (≥ 95), MP bootstrap ≥ 74 and BI probabilities ≥ 0.98. Findings of the study will not only contribute to our understanding of local Polypores species diversity but also enhance knowledge of geographical distribution in global context.
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Affiliation(s)
- Shahid Hussain
- Department of Botany, University of Malakand, 18800, Chakdara Dir Lower, Khyber Pakhtunkhwa, Pakistan.
| | - Mohammad Nisar
- Department of Botany, University of Malakand, 18800, Chakdara Dir Lower, Khyber Pakhtunkhwa, Pakistan.
| | - Hassan Sher
- Center for Plant Sciences and Biodiversity, University of Swat, Swat, Khyber Pakhtunkhwa, Khyber Pakhtunkhwa, Pakistan
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Liu H, Pan J, E K, Guan Y, Gou W, Wang P, Hussain S, Du Z, Ma C. Selective efficient photocatalytic degradation of antibiotics and direct Z-type migration pathway for hierarchical core-shell TiO 2/g-C 3N 4 composites. Environ Sci Pollut Res Int 2024; 31:4582-4594. [PMID: 38105324 DOI: 10.1007/s11356-023-31358-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/30/2023] [Indexed: 12/19/2023]
Abstract
Constructing superior Z-type photocatalytic heterojunction is beneficial to effectively enlarge interface contact, improve the photo-generated carrier separation rate, and retain the high redox ability. In this work, we designed a hierarchical core-shell g-C3N4/TiO2 structure to build Z-type heterojunction via combining simple template method and pyrolysis process. A close-knit Z-type heterojunction was constructed using TiO2 as a thick core and g-C3N4 as an ultra-thin shell. The effects of lamp source, wavelength, tetracycline (TC) concentration, and photocatalyst dose on the degradation performance on TC of g-C3N4/TiO2 were inspected. 0.1TiO2/g-C3N4 photocatalyst had the best degradation rate and highest removal rate within 30 min, and its degradation rate was about 49, 23, and 5 times than pure g-C3N4, TiO2, and commercial TiO2/g-C3N4 in respect. Moreover, compared with degradation ability under Xenon lamp, LED irradiation for g-C3N4/TiO2 composites showed a remarkable selective degradation. The fast and efficient Z-type transfer pathway of 0.1 g-C3N4/TiO2 was realized by forming an optimized interface and abundant surface active sites ascribed to the combined action of thick TiO2 core and ultra-thin g-C3N4 shell. In addition, the degradation intermediates were analyzed by LC-MS and suggested pathways of degradation. The work could provide novel design concept to obtain reliable Z-type photocatalysts with hierarchical core-shell structure applied in degradation of antibiotic wastewater.
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Affiliation(s)
- Hu Liu
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Jianmei Pan
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China.
| | - Keyu E
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Yi Guan
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Wenbo Gou
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Peng Wang
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Shahid Hussain
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Ze Du
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
| | - Chengfei Ma
- School of Materials Science and Engineering, Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, People's Republic of China
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Nadeem A, Hussain S, Fareed A, Fahim M, Iqbal T, Ahmad Z, Saeedullah, Karim R, Akbar A. Genetic variations among the isolates of Bipolaris Maydis based on phenotypic and molecular markers. BRAZ J BIOL 2024. [DOI: 10.1590/1519-6984.253147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Maydis leaf blight, caused by Bipolaris maydis, is an important disease of maize crop in Khyber Pakhtunkhwa (KP) Pakistan. Fifteen isolates of the pathogen, collected across KP, were studied for variability based on phenotypic and molecular markers. Significant variability among the isolates was observed when assessed using phenotypic traits such as radial growth, spore concentration, fungicide sensitivity and virulence. The isolates were classified into six culture groups based on colour, texture and margins of the colony. Conidial morphology was also variable. These were either straight or slightly curved and light to dark brown in colour. Fungicide test showed significant variation in the degree of sensitivity against Carbendazim. Isolate Bm8 exhibited maximum radial growth on carbendazim spiked plates. Conversely, isolate Bm15 showed the lowest radial growth. Variations in virulence pattern of the isolates were evident when a susceptible maize variety Azam was inoculated with spores of B. maydis. Genetic variability amongst the isolates was also estimated by RAPD as well as sequencing of ITS region. The RAPD dendrogram grouped all the isolates into two major clusters. Average genetic distance ranged from 0.6% to 100%, indicating a diverse genetic gap among the isolates. Maximum genetic distance was found between isolates Bm9 and Bm10 as well as Bm2 and Bm8. Conversely, isolates Bm13 and Bm15 were at minimum genetic distance. Phylogenetic dendrogram based on sequencing of ITS region grouped all the isolates into a single major cluster. The clusters in both the dendrogram neither correlate to the geographical distribution nor to the morphological characteristics.
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Affiliation(s)
- A. Nadeem
- The University of Agriculture Peshawar, Pakistan
| | - S. Hussain
- The University of Agriculture Peshawar, Pakistan
| | - A. Fareed
- The University of Agriculture Peshawar, Pakistan
| | - M. Fahim
- dIslamia College University, Pakistan
| | - T. Iqbal
- The University of Agriculture Peshawar, Pakistan
| | - Z. Ahmad
- Adaptive Research Program, Pakistan
| | - Saeedullah
- The University of Agriculture Peshawar, Pakistan
| | - R. Karim
- The University of Agriculture Peshawar, Pakistan
| | - A. Akbar
- National Agricultural Research Centre, Pakistan
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Usman M, Habib M, Sathish M, Iqbal S, Altaf J, Ahmad Z, ur Rehman A, Khan AI, Maqbool R, Hussain S, Saleem F, Kashif Z, Awan FS. Genomic characterization of Puccinia triticina using molecular marker technology. BRAZ J BIOL 2024; 84:e249472. [DOI: 10.1590/1519-6984.249472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 08/12/2021] [Indexed: 11/22/2022] Open
Abstract
Abstract Leaf rust, caused by Puccinia triticina, is the most common rust disease of wheat. The fungus is an obligate parasite capable of producing infectious urediniospores. To study the genetic structure of the leaf rust population 20 RAPD primers were evaluated on 15 isolates samples collected in Pakistan. A total of 105 RAPD fragments were amplified with an average of 7 fragments per primer. The number of amplified fragments varied from 1 to 12. GL Decamer L-07 and GL Decamer L-01 amplified the highest number of bands (twelve) and primer GL Decamer A-03 amplified the lowest number of bands i.e one. Results showed that almost all investigated isolates were genetically different that confirms high genetic diversity within the leaf rust population. Rust spores can follow the migration pattern in short and long distances to neighbor areas. Results indicated that the greatest variability was revealed by 74.9% of genetic differentiation within leaf rust populations. These results suggested that each population was not completely identical and high gene flow has occurred among the leaf rust population of different areas. The highest differentiation and genetic distance among the Pakistani leaf rust populations were detected between the leaf rust population in NARC isolate (NARC-4) and AARI-11and the highest similarity was observed between NARC isolates (NARC-4) and (NARC-5). The present study showed the leaf rust population in Pakistan is highly dynamic and variable.
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Affiliation(s)
- M. Usman
- University of Agriculture, Pakistan
| | - M. Habib
- University of Agriculture, Pakistan
| | | | | | - J. Altaf
- Government College University Faisalabad, Pakistan
| | - Z. Ahmad
- University of Agriculture, Pakistan
| | - A. ur Rehman
- Wheat Research Institute Ayub Agricultural Research Institute, Pakistan
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Alkhateeb SA, Hussain S, Albalawi W, El-Tantawy SA, El-Awady EI. Dissipative Kawahara ion-acoustic solitary and cnoidal waves in a degenerate magnetorotating plasma. Journal of Taibah University for Science 2023. [DOI: 10.1080/16583655.2023.2187606] [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: 03/18/2023]
Affiliation(s)
- Sadah A. Alkhateeb
- Mathematics Department, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - S. Hussain
- Theoretical Physics Division (TPD), PINSTECH, P.O. Nilore, Islamabad, Pakistan
| | - Wedad Albalawi
- Department of Mathematical Sciences, College of Science, Princess Nourah bint Abdulrahman university, Riyadh, Saudi Arabia
| | - S. A. El-Tantawy
- Department of Physics, Faculty of Science, Port Said University, Port Said, Egypt
- Research Center for Physics (RCP), Department of Physics, Faculty of Science and Arts, Al-Mikhwah, Al-Baha University, Al Bahah, Saudi Arabia
| | - E. I. El-Awady
- Department of Physics, Faculty of Science, Port Said University, Port Said, Egypt
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11
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Khan AR, Awan NUH, Tchier F, Alahmari SD, Khalel AF, Hussain S. An estimation of physiochemical properties of bladder cancer drugs via degree-based chemical bonding topological descriptors. J Biomol Struct Dyn 2023:1-9. [PMID: 38095491 DOI: 10.1080/07391102.2023.2292792] [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: 06/19/2023] [Accepted: 10/02/2023] [Indexed: 12/27/2023]
Abstract
The use of topological descriptors remains a significant approach due to numerous advances in the field of drug design. Descriptors provide numerical representations of a molecule's chemical characteristics when used with QSPR models. The QSPR analysis for bladder medications is the main focus of this study. Linear regression model is developed for the computed indices values, the physicochemical properties of the bladder medications are examined.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Abdul Rauf Khan
- Department of Mathematics, Faculty of Sciences, Ghazi University D. G. Khan, Pakistan
| | - Nadeem Ul Hassan Awan
- Department of Mathematics, Faculty of Sciences, Ghazi University D. G. Khan, Pakistan
| | - Fairouz Tchier
- Mathematics Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saeed D Alahmari
- Department of Chemistry, Faculty of Science, Jazan University, Jazan, Saudi Arabia
| | - Ashjan F Khalel
- Biology Department, University Collage in Aldarb, Jazan University, Jazan, Saudi Arabia
| | - Shahid Hussain
- Energy Engineering Division, Department of Engineering Science and Mathematics, Lulea University of Technology, Lulea, Sweden
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12
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Jamwal PK, Niyetkaliyev A, Hussain S, Sharma A, Van Vliet P. Utilizing the intelligence edge framework for robotic upper limb rehabilitation in home. MethodsX 2023; 11:102312. [PMID: 37593414 PMCID: PMC10428111 DOI: 10.1016/j.mex.2023.102312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 08/01/2023] [Indexed: 08/19/2023] Open
Abstract
Robotic devices are gaining popularity for the physical rehabilitation of stroke survivors. Transition of these robotic systems from research labs to the clinical setting has been successful, however, providing robot-assisted rehabilitation in home settings remains to be achieved. In addition to ensure safety to the users, other important issues that need to be addressed are the real time monitoring of the installed instruments, remote supervision by a therapist, optimal data transmission and processing. The goal of this paper is to advance the current state of robot-assisted in-home rehabilitation. A state-of-the-art approach to implement a novel paradigm for home-based training of stroke survivors in the context of an upper limb rehabilitation robot system is presented in this paper. First, a cost effective and easy-to-wear upper limb robotic orthosis for home settings is introduced. Then, a framework of the internet of robotics things (IoRT) is discussed together with its implementation. Experimental results are included from a proof-of-concept study demonstrating that the means of absolute errors in predicting wrist, elbow and shoulder angles are 0.8918 0 , 2.6753 0 and 8.0258 0 , respectively. These experimental results demonstrate the feasibility of a safe home-based training paradigm for stroke survivors. The proposed framework will help overcome the technological barriers, being relevant for IT experts in health-related domains and pave the way to setting up a telerehabilitation system increasing implementation of home-based robotic rehabilitation. The proposed novel framework includes:•A low-cost and easy to wear upper limb robotic orthosis which is suitable for use at home.•A paradigm of IoRT which is used in conjunction with the robotic orthosis for home-based rehabilitation.•A machine learning-based protocol which combines and analyse the data from robot sensors for efficient and quick decision making.
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Affiliation(s)
- Prashant K. Jamwal
- Department of Electrical and Computer Engineering, Nazarbayev University, Astana, Kazakhstan
| | - Aibek Niyetkaliyev
- Department of Robotics Engineering, Nazarbayev University, Astana, Kazakhstan
| | - Shahid Hussain
- School of Information Technology and Systems, University of Canberra, Canberra, ACT, Australia
| | - Aditi Sharma
- Department of Electrical and Computer Engineering, Nazarbayev University, Astana, Kazakhstan
| | - Paulette Van Vliet
- Research and Innovation Division, The University of Newcastle, NSW, Australia
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13
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Gray JS, Wani SA, Hussain S, Huang P, Nayak D, Long MD, Yates C, Clinton SK, Bennet CE, Coss CC, Campbell MJ. The MYC axis in advanced prostate cancer is impacted through concurrent targeting of ERβ and AR using a novel ERβ-selective ligand alongside Enzalutamide. bioRxiv 2023:2023.11.15.567282. [PMID: 38014010 PMCID: PMC10680693 DOI: 10.1101/2023.11.15.567282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
We have dissected the role of Estrogen receptor beta (ERβ) in prostate cancer (PCa) with a novel ERβ ligand, OSU-ERb-12. Drug screens revealed additive interactions between OSU-ERB-12 and either epigenetic inhibitors or the androgen receptor antagonist, Enzalutamide (Enza). Clonogenic and cell biolody studies supported the potent additive effects of OSU-ERB-12 (100nM) and Enza (1μM). The cooperative behavior was in PCa cell lines treated with either OSU-ERB-12 plus Enza or combinations involving 17β-estradiol (E2). OSU-ERb-12 plus Enza uniquely impacted the transcriptiome, accessible chromatin, and the AR, MYC and H3K27ac cistromes. This included skewed transcriptional responses including suppression of the androgen and MYC transcriptomes, and repressed MYC protein. OSU-ERb-12 plus Enza uniquely impacted chromatin accessibility at approximately 3000 nucleosome-free sites, enriched at enhancers, enriched for basic Helix-Loop-Helix motifs. CUT&RUN experiments revealed combination treatment targeting of MYC, AR, and H3K27ac again shaping enhancer accessibility. Specifically, it repressed MYC interactions at enhancer regions enriched for bHLH motifs, and overlapped with publicly-available bHLH cistromes. Finally, cistrome-transcriptome analyses identified ~200 genes that distinguished advanced PCa tumors in the SU2C cohort with high androgen and low neuroendocrine scores.
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Affiliation(s)
- Jaimie S. Gray
- College of Pharmacy, Division of Pharmaceutics and Pharmacology; The Ohio State University, Columbus, OH 43210
- College of Medicine; The Ohio State University, Columbus, OH 43210
- Comprehensive Cancer Center; The Ohio State University, Columbus, OH 43210
| | - Sajad A. Wani
- College of Pharmacy, Division of Pharmaceutics and Pharmacology; The Ohio State University, Columbus, OH 43210
- Comprehensive Cancer Center; The Ohio State University, Columbus, OH 43210
| | - Shahid Hussain
- Board of Governors Innovation Center; Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048
- Cedars-Sinai Cancer; Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048
| | - Phoebe Huang
- College of Pharmacy, Division of Pharmaceutics and Pharmacology; The Ohio State University, Columbus, OH 43210
| | - Debasis Nayak
- College of Pharmacy, Division of Pharmaceutics and Pharmacology; The Ohio State University, Columbus, OH 43210
| | - Mark D. Long
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Clayton Yates
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21287 USA
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
- Department of Oncology Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287 USA
| | - Steven K. Clinton
- College of Medicine; The Ohio State University, Columbus, OH 43210
- Comprehensive Cancer Center; The Ohio State University, Columbus, OH 43210
| | - Chad E. Bennet
- Drug Development Institute, Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210
| | - Christopher C. Coss
- College of Pharmacy, Division of Pharmaceutics and Pharmacology; The Ohio State University, Columbus, OH 43210
- Comprehensive Cancer Center; The Ohio State University, Columbus, OH 43210
- Drug Development Institute, Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210
| | - Moray J. Campbell
- College of Pharmacy, Division of Pharmaceutics and Pharmacology; The Ohio State University, Columbus, OH 43210
- Board of Governors Innovation Center; Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048
- Cedars-Sinai Cancer; Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048
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14
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Hussain S, Wilkes C, Dhanda N. Shared decision making: audiology student perspectives. Front Rehabil Sci 2023; 4:1254836. [PMID: 38035185 PMCID: PMC10682730 DOI: 10.3389/fresc.2023.1254836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/16/2023] [Indexed: 12/02/2023]
Abstract
Introduction Shared decision making is a concept in healthcare that actively involves patients in the management of their condition. The process of shared decision making is taught in clinical training programmes, including Audiology, where there are several options for the management of hearing loss. This study sought to explore the perception of Healthcare Science (Audiology) student views on shared decision making. Methods Twelve students across all years of the BSc Healthcare Science degree took part in three semi-structured focus groups. Four students were work-based learners, and eight students were enrolled on the standard pathway. Data were analysed using Thematic Analysis. Results Students' definition and understanding of shared decision making was influenced by three key factors that were based on using a range of resources, implementation of a decision aid, and recognising Ida Institute as a pinnacle of shared decision making. Students also identified their roles as the future of healthcare workforce and the importance of disseminating best practice. Conclusion Shared decision making is valued by students in their roles as healthcare trainees. This study data will enhance teaching practices for healthcare science students in audiology training. Future research involving patient views in clinical training is vital.
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Affiliation(s)
- S. Hussain
- Department of Audiology, School of Life and Health Sciences, Aston University, Birmingham, United Kingdom
| | - C. Wilkes
- Department of Audiology, School of Life and Health Sciences, Aston University, Birmingham, United Kingdom
| | - N. Dhanda
- College of Medical and Dental Sciences, Institute of Applied Health Research, University of Birmingham, Birmingham, United Kingdom
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15
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Irshad RR, Sohail SS, Hussain S, Madsen DØ, Zamani AS, Ahmed AAA, Alattab AA, Badr MM, Alwayle IM. Towards enhancing security of IoT-Enabled healthcare system. Heliyon 2023; 9:e22336. [PMID: 38034697 PMCID: PMC10687057 DOI: 10.1016/j.heliyon.2023.e22336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 10/29/2023] [Accepted: 11/09/2023] [Indexed: 12/02/2023] Open
Abstract
The Internet-of-Things (IoT)-based healthcare systems are comprised of a large number of networked medical devices, wearables, and sensors that collect and transmit data to improve patient care. However, the enormous number of networked devices renders these systems vulnerable to assaults. To address these challenges, researchers advocated reducing execution time, leveraging cryptographic protocols to improve security and avoid assaults, and utilizing energy-efficient algorithms to minimize energy consumption during computation. Nonetheless, these systems still struggle with long execution times, assaults, excessive energy usage, and inadequate security. We present a novel whale-based attribute encryption scheme (WbAES) that empowers the transmitter and receiver to encrypt and decrypt data using asymmetric master key encryption. The proposed WbAES employs attribute-based encryption (ABE) using whale optimization algorithm behaviour, which transforms plain data to ciphertexts and adjusts the whale fitness to generate a suitable master public and secret key, ensuring security against unauthorized access and manipulation. The proposed WbAES is evaluated using patient health record (PHR) datasets collected by IoT-based sensors, and various attack scenarios are established using Python libraries to validate the suggested framework. The simulation outcomes of the proposed system are compared to cutting-edge security algorithms and achieved finest performance in terms of reduced 11 s of execution time for 20 sensors, 0.121 mJ of energy consumption, 850 Kbps of throughput, 99.85 % of accuracy, and 0.19 ms of computational cost.
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Affiliation(s)
- Reyazur Rashid Irshad
- Department of Computer Science, College of Science and Arts, Sharurah-68341, Najran University, Kingdom of Saudi Arabia
| | - Shahab Saquib Sohail
- Department of Computer Science and Engineering, School of Engineering Sciences and Technology, Jamia Hamdard, New Delhi, India
| | - Shahid Hussain
- Innovation Value Institute (IVI), School of Business, National University of Ireland,Maynooth (NUIM), Maynooth, Co. kildare, W23, F2H6 Ireland
| | - Dag Øivind Madsen
- USN School of Business, University of South-Eastern Norway, 3511 Hønefoss, Norway
| | - Abu Sarwar Zamani
- Department of Computer and Self Development, Preparatory Year Deanship, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Abdallah Ahmed Alzupair Ahmed
- Department of Computer Science, College of Science and Arts, Sharurah-68341, Najran University, Kingdom of Saudi Arabia
| | - Ahmed Abdu Alattab
- Department of Computer Science, College of Science and Arts, Sharurah-68341, Najran University, Kingdom of Saudi Arabia
| | - Mohamed Mahdi Badr
- Department of Computer Science, College of Science and Arts, Sharurah-68341, Najran University, Kingdom of Saudi Arabia
| | - Ibrahim M. Alwayle
- Department of Computer Science, College of Science and Arts, Sharurah-68341, Najran University, Kingdom of Saudi Arabia
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16
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Hussain S, Adeloju SB. Layered Architectural Fabrication of a Novel Sulfite Nanobiosensor by Encapsulation of Sulfite Oxidase on a Polypyrrole-Multiwalled Carbon Nanotubes Composite Decorated with Platinum Nanoparticles. Small 2023:e2305333. [PMID: 37857587 DOI: 10.1002/smll.202305333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/14/2023] [Indexed: 10/21/2023]
Abstract
The fabrication of a highly selective and ultrasensitive sulfite nanobiosensor based on a layered architectural fabrication aided by the encapsulation of sulfite oxidase (SOx) in Nafion (Naf) matrix on a multiwalled carbon nanotubes-polypyrrole (MWCNTs-PPy) composite decorated with platinum nanoparticles (PtNPs) is described. The MWCNTs are deposited in the inner layer on a Pt electrode during electropolymerization of pyrrole (Py), followed by decoration with a PtNPs layer and subsequent encapsulation of SOx with Naf in the third layer capped with a fourth thin PtNPs layer. Images obtained by field emission scanning electron microscopy (FESEM) reveal that high-density PtNPs are deposited onto the 3D nanostructured inner MWCNTs-PPy layer and the electrochemical behavior is investigated. A large surface area provided by the incorporation of MWCNTs in the composite and decoration with PtNPs enables increased SOx loading, SOx retention, and substantial improvement in sensing performance. The resulting layered PtNPs/SOx-Naf/PtNPs/MWCNTs-PPy nanobiosensor exhibits a fast response time (within 3 s), a linear calibration range of 20 nmm - 6 m with an excellent sensitivity of 71 µA mm-1 cm-2 and a detection limit of 5.4 nm. The nanobiosensor was effective in discriminating against common interferants and was successfully applied to sulfite determination in real samples.
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Affiliation(s)
- Shahid Hussain
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | - Samuel B Adeloju
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
- Faculty of Science & Health, Charles Sturt University, Albury, NSW, 2640, Australia
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17
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Zhao L, Han H, Lu Z, Yang J, Wu X, Ge B, Yu L, Shi Z, Karami AM, Dong S, Hussain S, Qiao G, Xu J. Realizing the Ultralow Lattice Thermal Conductivity of Cu 3SbSe 4 Compound via Sulfur Alloying Effect. Nanomaterials (Basel) 2023; 13:2730. [PMID: 37836371 PMCID: PMC10574639 DOI: 10.3390/nano13192730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/04/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023]
Abstract
Cu3SbSe4 is a potential p-type thermoelectric material, distinguished by its earth-abundant, inexpensive, innocuous, and environmentally friendly components. Nonetheless, the thermoelectric performance is poor and remains subpar. Herein, the electrical and thermal transport properties of Cu3SbSe4 were synergistically optimized by S alloying. Firstly, S alloying widened the band gap, effectively alleviating the bipolar effect. Additionally, the substitution of S in the lattice significantly increased the carrier effective mass, leading to a large Seebeck coefficient of ~730 μVK-1. Moreover, S alloying yielded point defect and Umklapp scattering to significantly depress the lattice thermal conductivity, and thus brought about an ultralow κlat ~0.50 Wm-1K-1 at 673 K in the solid solution. Consequently, multiple effects induced by S alloying enhanced the thermoelectric performance of the Cu3SbSe4-Cu3SbS4 solid solution, resulting in a maximum ZT value of ~0.72 at 673 K for the Cu3SbSe2.8S1.2 sample, which was ~44% higher than that of pristine Cu3SbSe4. This work offers direction on improving the comprehensive TE in solid solutions via elemental alloying.
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Affiliation(s)
- Lijun Zhao
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Haiwei Han
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Zhengping Lu
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Jian Yang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xinmeng Wu
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Bangzhi Ge
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Lihua Yu
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Zhongqi Shi
- State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
| | - Abdulnasser M. Karami
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Songtao Dong
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Shahid Hussain
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Guanjun Qiao
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Junhua Xu
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
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18
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Amu-Darko JNO, Hussain S, Zhang X, Ouladsmane M, Issaka E, Ali S, Wang M, Qiao G. Exploring the gas-sensing properties of MOF-derived TiN@CuO as a hydrogen sulfide sensor. Chemosphere 2023; 337:139401. [PMID: 37423407 DOI: 10.1016/j.chemosphere.2023.139401] [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] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/06/2023] [Accepted: 06/30/2023] [Indexed: 07/11/2023]
Abstract
In an effort to develop a long-lasting gas sensor, this article presents titanium nitride (TiN) as a potential substitute sensitive material in conjunction with (copper(II) benzene-1,3,5-tricarboxylate) Cu-BTC-derived CuO. The work focused on the gas-sensing characteristics of TiN/CuO nanoparticles in detecting H2S gas at various temperatures and concentrations. XRD, XPS, and SEM were utilized to analyze the composites with varied Cu molar ratios. The responses of TiN/CuO-2 nanoparticles to 50 and 100 ppm H2S gas at 50 °C and 250 °C are 34.8 and 60.0, respectively. The related sensor had high selectivity and stability towards H2S, and the response of TiN/CuO-2 is still 2.5-5 ppm H2S. The gas-sensing properties as well as the mechanism are fully explained in this study. TiN/CuO might be a choice for the detection of H2S gas, opening up new avenues for applications in industries, medical facilities, and homes.
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Affiliation(s)
| | - Shahid Hussain
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Xiangzhao Zhang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Mohamed Ouladsmane
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Eliasu Issaka
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Salman Ali
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Mingsong Wang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Guanjun Qiao
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
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19
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Ali A, Ma L, Shahzad M, Musonda J, Hussain S. How various stakeholder pressure influences mega-project sustainable performance through corporate social responsibility and green competitive advantage. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-29717-w. [PMID: 37702865 DOI: 10.1007/s11356-023-29717-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 08/31/2023] [Indexed: 09/14/2023]
Abstract
Although numerous research studies have revealed that mega-projects are closely linked to globalization and civilization, few researchers have performed logical assessments of mega-projects using stakeholder theory. As stakeholders demand greater sustainability in the construction industry, sustainable development (SD) has become a priority. However, corporate social responsibility (CSR) and green competitive advantage (GCA) have often been overlooked. This study aims to fill this knowledge gap by creating a comprehensive model to predict mega-project sustainable performance (MSP). Data was collected from 289 respondents in Pakistan's construction industry, and hypotheses were tested using partial least squares structural equation modeling and fuzzy set qualitative comparative analysis. The results indicate that both secondary and primary stakeholders' pressure positively impacts CSR and MSP. Moreover, CSR significantly affects GCA and MSP, with CSR and GCA partially mediating these relationships. Thus, the proposed model could offer innovative insights for decision-makers and engineering managers, recommend adopting social and green practices to enhance MSP with the support of concerned stakeholders' pressure, and help achieve SD objectives.
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Affiliation(s)
- Azhar Ali
- Department of Construction Management, Dalian University of Technology, Dalian, 116024, China
| | - Li Ma
- Department of Construction Management, Dalian University of Technology, Dalian, 116024, China.
| | - Mohsin Shahzad
- LNU-MSU College of International Business, Liaoning Normal University, Dalian, 116024, China
| | - Jonathan Musonda
- Department of Construction Management, Dalian University of Technology, Dalian, 116024, China
| | - Shahid Hussain
- Department of Business Management, Karakoram International University, Gilgit, 15100, Pakistan
- Department of Management, University of Religious and Denomination, Qom, 37491-13357, Iran
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20
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Cho Y, Kim D, Lee Y, Jeong J, Hussain S, Lim YW. Validation of Fuscoporia (Hymenochaetales, Basidiomycota) ITS sequences and five new species based on multi-marker phylogenetic and morphological analyses. IMA Fungus 2023; 14:12. [PMID: 37381063 DOI: 10.1186/s43008-023-00117-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 05/30/2023] [Indexed: 06/30/2023] Open
Abstract
Although there is a continuous increase in available molecular data, not all sequence identities in public databases are always properly verified and managed. Here, the sequences available in GenBank for Fuscoporia (Hymenochaetales) were validated. Many morphological characters of Fuscoporia overlap among the species, emphasizing the role of molecular identification for accuracy. The identities of 658 Fuscoporia GenBank internal transcribed spacer (ITS) sequences were assessed using ITS phylogeny, revealing 109 (16.6%) misidentified and 196 (29.8%) unspecified sequences. They were validated and re-identified based on the research articles they were published in and, if unpublished, based on sequences from the type, type locality-derived sequences, or otherwise reliable sequences. To enhance the resolution of species delimitation, a phylogenetic assessment of a multi-marker dataset (ITS + nrLSU + rpb2 + tef1) was conducted. The multi-marker phylogeny resolved five of the twelve species complexes found in the ITS phylogeny and uncovered five new Fuscoporia species: F. dolichoseta, F. gilvoides, F. koreana, F. reticulata, and F. semicephala. The validated ITS sequences in this study may prevent further accumulation of misidentified sequences in public databases and contribute to a more accurate taxonomic evaluation of Fuscoporia species.
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Affiliation(s)
- Yoonhee Cho
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, Republic of Korea
| | - Dohye Kim
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, Republic of Korea
| | - Yoongil Lee
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, Republic of Korea
| | - Juhwan Jeong
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, Republic of Korea
| | - Shahid Hussain
- Centre for Plant Sciences and Biodiversity, University of Swat, Swat, Khyber Pakhtunkhwa, Pakistan
| | - Young Woon Lim
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, Republic of Korea.
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21
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Hussain S, Ji R, Wang S. High-performance circular polarization modulation using a dielectric metasurface. Appl Opt 2023; 62:4860-4865. [PMID: 37707261 DOI: 10.1364/ao.491366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/16/2023] [Indexed: 09/15/2023]
Abstract
We demonstrate a chiral metasurface that exhibits a giant chiroptical response as well as functions as an optical diode due to geometrical asymmetry for circularly polarized light (CPL). Engineering the Mie-type multipole radiation using geometrical features led to performance values in terms of near-unity transmission and circular dichroism (CD) efficiency (about 0.96) and an extinction ratio of ∼3.8×104 for 1550 nm wavelength. A continuous stopband of 1538-1556 nm is achieved for an unchosen component of CPL while keeping the transmission efficiency of the chosen CPL component larger than 0.9. Because of the high extinction ratio and CD efficiency, the proposed metasurface has the potential for chiroptical applications including high-contrast polarization imaging, precise Stokes parameters measurement, optical diodes, and polarization detection for CPL.
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Imran M, Khan AR, Husin MN, Tchier F, Ghani MU, Hussain S. Computation of Entropy Measures for Metal-Organic Frameworks. Molecules 2023; 28:4726. [PMID: 37375281 DOI: 10.3390/molecules28124726] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/04/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Entropy is a thermodynamic function used in chemistry to determine the disorder and irregularities of molecules in a specific system or process. It does this by calculating the possible configurations for each molecule. It is applicable to numerous issues in biology, inorganic and organic chemistry, and other relevant fields. Metal-organic frameworks (MOFs) are a family of molecules that have piqued the curiosity of scientists in recent years. They are extensively researched due to their prospective applications and the increasing amount of information about them. Scientists are constantly discovering novel MOFs, which results in an increasing number of representations every year. Furthermore, new applications for MOFs continue to arise, illustrating the materials' adaptability. This article investigates the characterisation of the metal-organic framework of iron(III) tetra-p-tolyl porphyrin (FeTPyP) and CoBHT (CO) lattice. By constructing these structures with degree-based indices such as the K-Banhatti, redefined Zagreb, and the atom-bond sum connectivity indices, we also employ the information function to compute entropies.
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Affiliation(s)
- Muhammad Imran
- Department of Mathematical Sciences, United Arab Emirates University, Al Ain P. O. Box 15551, United Arab Emirates
| | - Abdul Rauf Khan
- Department of Mathematics, Faculty of Science, Ghazi University, Dera Ghazi Khan 32200, Pakistan
| | - Mohamad Nazri Husin
- Special Interest Group on Modelling, Data Analytics (SIGMDA) Faculty of Ocean Engineering Technology, Informatics Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
| | - Fairouz Tchier
- Mathematics Department, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Muhammad Usman Ghani
- Institute of Mathematics, Khawaja Fareed University of Engineering & Information Technology, Abu Dhabi Road, Rahim Yar Khan 64200, Pakistan
| | - Shahid Hussain
- Energy Engineering Division, Department of Engineering Science and Mathematics, Lulea University of Technology, 97187 Lulea, Sweden
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Hussain S, Adeloju SB. Biofunctionalisation of Polypyrrole Nanowires Array with Sulfite Oxidase Coupled with the Integration of Platinum Nanoparticles for Ultrasensitive Amperometric Detection of Sulfite. Biosensors (Basel) 2023; 13:621. [PMID: 37366986 DOI: 10.3390/bios13060621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/23/2023] [Accepted: 05/31/2023] [Indexed: 06/28/2023]
Abstract
Sulfite determination in foods and alcoholic beverages is a common requirement by food and drug administration organisations in most countries. In this study, the enzyme, sulfite oxidase (SOx), is used to biofunctionalise a platinum-nanoparticle-modified polypyrrole nanowire array (PPyNWA) for the ultrasensitive amperometric detection of sulfite. A dual-step anodisation method was used to prepare the anodic aluminum oxide membrane used as a template for the initial fabrication of the PPyNWA. PtNPs were subsequently deposited on the PPyNWA by potential cycling in a platinum solution. The resulting PPyNWA-PtNP electrode was then biofuntionalised by adsorption of SOx onto the surface. The confirmation of the adsorption of SOx and the presence of PtNPs in the PPyNWA-PtNPs-SOx biosensor was verified by scanning electron microscopy and electron dispersive X-ray spectroscopy. Cyclic voltammetry and amperometric measurements were used to investigate the properties of the nanobiosensor and to optimise its use for sulfite detection. Ultrasensitive detection of sulfite with the PPyNWA-PtNPs-SOx nanobiosensor was accomplished by use of 0.3 M pyrrole, 10 U mL-1 of SOx, adsorption time of 8 h, a polymerisation period of 900 s, and an applied current density of 0.7 mA cm-2. The response time of the nanobiosensor was 2 s, and its excellent analytical performance was substantiated with a sensitivity of 57.33 μA cm-2 mM-1, a limit of detection of 12.35 nM, and a linear response range from 0.12 to 1200 μM. Application of the nanobiosensor to sulfite determination in beer and wine samples was achieved with a recovery efficiency of 97-103%.
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Affiliation(s)
- Shahid Hussain
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Samuel B Adeloju
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
- Faculty of Science & Health, Charles Sturt University, Albury, NSW 2640, Australia
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Hussain S, Sher H, Ullah Z, Elshikh MS, Al Farraj DA, Ali A, Abbasi AM. Traditional Uses of Wild Edible Mushrooms among the Local Communities of Swat, Pakistan. Foods 2023; 12:foods12081705. [PMID: 37107503 PMCID: PMC10137476 DOI: 10.3390/foods12081705] [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: 02/13/2023] [Revised: 04/03/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Mushrooms play a crucial role in human life as well as in nature, providing food, medicine, and carrying out vital processes of decomposition, nutrient recycling, and developing mycorrhizal association with plants. The traditional system of knowledge about identification, collection, and usage of mushrooms has been accumulated through the shared experiences of many generations. Unfortunately, there have been continuous threats to the folk knowledge of mushrooms mainly due to habitat degradation, urbanization, and contemporary medication. The current research was, therefore, aimed to document an ethnomycological knowledge possessed by the ethnic communities of Swat, Pakistan. The purposive randomized sampling was carried out using chain referral method. Ethno-mycological information was collected from 62 informants using free listing, preference ranking, and use totaled methods. In total, 34 species of mushrooms belonging to 31 genera and 21 families were reported. About 85% of the reported species belong to Basidiomycetes, and 12.5% to Ascomycetes are used as food and for medicinal purposes. Morchella angusticeps, M. esculenta, Pleurotus sp., Auricularia sp., Flammulina velutipes, Agaricus bisporus, Ganoderma lucidum, and Sanghuangporus sanghuang were among the most cited edible and medicinal mushrooms. The current study revealed that district Swat is rich in wild edible and medicinal mushrooms (WEMs), and the local communities possess rich traditional knowledge about their collection, storage, and utilization. The diversity of WEMs of this region could contribute substantially to the socio-economic uplifting of the local communities through appropriate domestication and commercialization. Anthropogenic factors, coupled with depletion of traditional knowledge, threaten the diversity of WEMs in the region; therefore, in situ and ex situ conservation strategies are highly recommended.
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Affiliation(s)
- Shahid Hussain
- Center for Plant Sciences and Biodiversity, University of Swat, Swat 19120, Pakistan
| | - Hassan Sher
- Center for Plant Sciences and Biodiversity, University of Swat, Swat 19120, Pakistan
| | - Zahid Ullah
- Center for Plant Sciences and Biodiversity, University of Swat, Swat 19120, Pakistan
| | - Mohamed Soliman Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Dunia A Al Farraj
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmad Ali
- Center for Plant Sciences and Biodiversity, University of Swat, Swat 19120, Pakistan
| | - Arshad Mehmood Abbasi
- Department of Environmental Sciences, Abbottabad Campus, COMSATS University Islamabad, Abbottabad 22060, Pakistan
- University of Gastronomic Sciences of Pollenzo, Piazza V. Emanuele II, 12042 Bra/Pollenzo, Italy
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25
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Chang S, Piper G, Chan J, Geraci T, Hsiung T, James L, Ngai J, Natalini J, Rudym D, Lesko M, Hussain S, Reyentovich A, Moazami N, Smith D, Angel L. Lung Transplantation Utilizing Donor after Circulatory Death with Normothermic Regional Perfusion. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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26
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Siddappa M, Hussain S, Wani SA, White J, Tang H, Gray JS, Jafari H, Wu HC, Long MD, Elhussin I, Karanam B, Wang H, Morgan R, Hardiman G, Adelani IB, Rotimi SO, Murphy AR, Nonn L, Davis MB, Kittles RA, Hughes Halbert C, Sucheston-Campbell LE, Yates C, Campbell MJ. African American Prostate Cancer Displays Quantitatively Distinct Vitamin D Receptor Cistrome-transcriptome Relationships Regulated by BAZ1A. Cancer Res Commun 2023; 3:621-639. [PMID: 37082578 PMCID: PMC10112383 DOI: 10.1158/2767-9764.crc-22-0389] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/12/2023] [Accepted: 03/07/2023] [Indexed: 04/22/2023]
Abstract
African American (AA) prostate cancer associates with vitamin D3 deficiency, but vitamin D receptor (VDR) genomic actions have not been investigated in this context. We undertook VDR proteogenomic analyses in European American (EA) and AA prostate cell lines and four clinical cohorts. Rapid immunoprecipitation mass spectrometry of endogenous protein (RIME) analyses revealed that nonmalignant AA RC43N prostate cells displayed the greatest dynamic protein content in the VDR complex. Likewise, in AA cells, Assay for Transposase-Accessible Chromatin using sequencing established greater 1α,25(OH)2D3-regulated chromatin accessibility, chromatin immunoprecipitation sequencing revealed significant enhancer-enriched VDR cistrome, and RNA sequencing identified the largest 1α,25(OH)2D3-dependent transcriptome. These VDR functions were significantly corrupted in the isogenic AA RC43T prostate cancer cells, and significantly distinct from EA cell models. We identified reduced expression of the chromatin remodeler, BAZ1A, in three AA prostate cancer cohorts as well as RC43T compared with RC43N. Restored BAZ1A expression significantly increased 1α,25(OH)2D3-regulated VDR-dependent gene expression in RC43T, but not HPr1AR or LNCaP cells. The clinical impact of VDR cistrome-transcriptome relationships were tested in three different clinical prostate cancer cohorts. Strikingly, only in AA patients with prostate cancer, the genes bound by VDR and/or associated with 1α,25(OH)2D3-dependent open chromatin (i) predicted progression from high-grade prostatic intraepithelial neoplasia to prostate cancer; (ii) responded to vitamin D3 supplementation in prostate cancer tumors; (iii) differentially responded to 25(OH)D3 serum levels. Finally, partial correlation analyses established that BAZ1A and components of the VDR complex identified by RIME significantly strengthened the correlation between VDR and target genes in AA prostate cancer only. Therefore, VDR transcriptional control is most potent in AA prostate cells and distorted through a BAZ1A-dependent control of VDR function. Significance Our study identified that genomic ancestry drives the VDR complex composition, genomic distribution, and transcriptional function, and is disrupted by BAZ1A and illustrates a novel driver for AA prostate cancer.
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Affiliation(s)
- Manjunath Siddappa
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Shahid Hussain
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Sajad A. Wani
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Jason White
- Department of Biology and Center for Cancer Research, Tuskegee University, Tuskegee, Alabama
| | - Hancong Tang
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Jaimie S. Gray
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Hedieh Jafari
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Hsu-Chang Wu
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Mark D. Long
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Isra Elhussin
- Department of Biology and Center for Cancer Research, Tuskegee University, Tuskegee, Alabama
| | - Balasubramanyam Karanam
- Department of Biology and Center for Cancer Research, Tuskegee University, Tuskegee, Alabama
| | - Honghe Wang
- Department of Biology and Center for Cancer Research, Tuskegee University, Tuskegee, Alabama
| | - Rebecca Morgan
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, United Kingdom
| | - Gary Hardiman
- School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, United Kingdom
- Department of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | | | - Solomon O. Rotimi
- Department of Biochemistry, Covenant University, Ota, Ogun State, Nigeria
| | - Adam R. Murphy
- Department of Urology, Northwestern Medicine, Chicago, Illinois
| | - Larisa Nonn
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | - Melissa B. Davis
- Department of Surgery, Weill Cornell Medicine, New York City, New York
| | - Rick A. Kittles
- Division of Health Equities, Department of Population Sciences, City of Hope, Duarte, California
| | - Chanita Hughes Halbert
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, California
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California
| | - Lara E. Sucheston-Campbell
- Division of Pharmacy Practice and Science, College of Pharmacy, The Ohio State University, Columbus, Ohio
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio
| | - Clayton Yates
- Department of Biology and Center for Cancer Research, Tuskegee University, Tuskegee, Alabama
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Oncology Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Moray J. Campbell
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio
- Corresponding Author: Moray J. Campbell, Cedars-Sinai Medical Center, Los Angeles, CA 90048. Phone: (424) 314-0367; E-mail:
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Casas-Sanchez A, Ramaswamy R, Perally S, Haines LR, Rose C, Aguilera-Flores M, Portillo S, Verbeelen M, Hussain S, Smithson L, Yunta C, Lehane MJ, Vaughan S, van den Abbeele J, Almeida IC, Boulanger MJ, Acosta-Serrano Á. The Trypanosoma brucei MISP family of invariant proteins is co-expressed with BARP as triple helical bundle structures on the surface of salivary gland forms, but is dispensable for parasite development within the tsetse vector. PLoS Pathog 2023; 19:e1011269. [PMID: 36996244 PMCID: PMC10089363 DOI: 10.1371/journal.ppat.1011269] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 04/11/2023] [Accepted: 03/08/2023] [Indexed: 04/01/2023] Open
Abstract
Trypanosoma brucei spp. develop into mammalian-infectious metacyclic trypomastigotes inside tsetse salivary glands. Besides acquiring a variant surface glycoprotein (VSG) coat, little is known about the metacyclic expression of invariant surface antigens. Proteomic analyses of saliva from T. brucei-infected flies identified, in addition to VSG and Brucei Alanine-Rich Protein (BARP) peptides, a family of GPI-anchored surface proteins herein named as Metacyclic Invariant Surface Proteins (MISP) because of its predominant expression on the surface of metacyclic trypomastigotes. The MISP family is encoded by five paralog genes with >80% protein identity, which are exclusively expressed by salivary gland stages of the parasite and peak in metacyclic stage, as shown by confocal microscopy and immuno-high resolution scanning electron microscopy. Crystallographic analysis of a MISP isoform (MISP360) and a high confidence model of BARP revealed a triple helical bundle architecture commonly found in other trypanosome surface proteins. Molecular modelling combined with live fluorescent microscopy suggests that MISP N-termini are potentially extended above the metacyclic VSG coat, and thus could be tested as a transmission-blocking vaccine target. However, vaccination with recombinant MISP360 isoform did not protect mice against a T. brucei infectious tsetse bite. Lastly, both CRISPR-Cas9-driven knock out and RNAi knock down of all MISP paralogues suggest they are not essential for parasite development in the tsetse vector. We suggest MISP may be relevant during trypanosome transmission or establishment in the vertebrate's skin.
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Affiliation(s)
- Aitor Casas-Sanchez
- Department of Vector Biology Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | | | - Samïrah Perally
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Lee R Haines
- Department of Vector Biology Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Clair Rose
- Department of Vector Biology Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Marcela Aguilera-Flores
- Border Biomedical Research Center, Department of Biological Sciences, University of Texas at El Paso, El Paso, Texas, United States of America
| | - Susana Portillo
- Border Biomedical Research Center, Department of Biological Sciences, University of Texas at El Paso, El Paso, Texas, United States of America
| | | | | | - Laura Smithson
- Biological and Medical Sciences, Oxford Brookes University, Oxford, United Kingdom
| | - Cristina Yunta
- Department of Vector Biology Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Michael J Lehane
- Department of Vector Biology Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Sue Vaughan
- Biological and Medical Sciences, Oxford Brookes University, Oxford, United Kingdom
| | | | - Igor C Almeida
- Border Biomedical Research Center, Department of Biological Sciences, University of Texas at El Paso, El Paso, Texas, United States of America
| | - Martin J Boulanger
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
| | - Álvaro Acosta-Serrano
- Department of Vector Biology Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
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28
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Irshad RR, Hussain S, Sohail SS, Zamani AS, Madsen DØ, Alattab AA, Ahmed AAA, Norain KAA, Alsaiari OAS. A Novel IoT-Enabled Healthcare Monitoring Framework and Improved Grey Wolf Optimization Algorithm-Based Deep Convolution Neural Network Model for Early Diagnosis of Lung Cancer. Sensors (Basel) 2023; 23:2932. [PMID: 36991642 PMCID: PMC10052730 DOI: 10.3390/s23062932] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 06/19/2023]
Abstract
Lung cancer is a high-risk disease that causes mortality worldwide; nevertheless, lung nodules are the main manifestation that can help to diagnose lung cancer at an early stage, lowering the workload of radiologists and boosting the rate of diagnosis. Artificial intelligence-based neural networks are promising technologies for automatically detecting lung nodules employing patient monitoring data acquired from sensor technology through an Internet-of-Things (IoT)-based patient monitoring system. However, the standard neural networks rely on manually acquired features, which reduces the effectiveness of detection. In this paper, we provide a novel IoT-enabled healthcare monitoring platform and an improved grey-wolf optimization (IGWO)-based deep convulution neural network (DCNN) model for lung cancer detection. The Tasmanian Devil Optimization (TDO) algorithm is utilized to select the most pertinent features for diagnosing lung nodules, and the convergence rate of the standard grey wolf optimization (GWO) algorithm is modified, resulting in an improved GWO algorithm. Consequently, an IGWO-based DCNN is trained on the optimal features obtained from the IoT platform, and the findings are saved in the cloud for the doctor's judgment. The model is built on an Android platform with DCNN-enabled Python libraries, and the findings are evaluated against cutting-edge lung cancer detection models.
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Affiliation(s)
- Reyazur Rashid Irshad
- Department of Computer Science, College of Science and Arts, Najran University, Sharurah 68341, Saudi Arabia
| | - Shahid Hussain
- Department of Computer Science and Engineering, Sejong University, Seoul 30019, Republic of Korea
| | - Shahab Saquib Sohail
- Department of Computer Science and Engineering, School of Engineering Sciences and Technology, Jamia Hamdard, New Delhi 110062, India
| | - Abu Sarwar Zamani
- Department of Computer and Self Development, Preparatory Year Deanship, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Dag Øivind Madsen
- USN School of Business, University of South-Eastern Norway, 3511 Hønefoss, Norway
| | - Ahmed Abdu Alattab
- Department of Computer Science, College of Science and Arts, Najran University, Sharurah 68341, Saudi Arabia
- Department of Computer Science, Faculty of Computer Science and Information Systems, Thamar University, Thamar 87246, Yemen
| | | | | | - Omar Ali Saleh Alsaiari
- Department of Computer Science, College of Science and Arts, Najran University, Sharurah 68341, Saudi Arabia
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Saleem M, Tahir A, Ahmed M, Khan A, Burak LC, Hussain S, Song L. Development of functional yogurt by using freeze-drying on soybean and mung bean peel powders. Front Sustain Food Syst 2023. [DOI: 10.3389/fsufs.2023.1083389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
IntroductionPlant-based yogurt has earned much interest in current times due to the rising demand for milk substitutes, which is tied to ethical and health needs.MethodsFreeze-drying impact on soybean peel powder (SPP) and mung bean peel powder (MPP) and their use in creating functional yogurt at various concentrations was checked. In functional yogurt, total flavonoid content (TFC), total phenolic content (TPC), antioxidant activity and chemical profile are checked.ResultsThe maximum concentration of TPC was 4.65±0.05 (mg GAE/g), TFC was 1.74±0.05 (CE mg/g) and 82.99 ± 0.02 % antioxidant activity was calculated in sample T6, having the highest concentration of SPP, which was substantially more significant than the treatment samples containing MPP. Sensory attributes of the yogurt samples were analyzed, which indicated a decrease when SPP and MPP values increased when introduced at 3 or 6 % of an optimum level. There was no notable loss of the sensory profile compared to the control group. The results were found to be significant at p < 0.05. The freeze-dried SPP had the complete chemical composition compared to MPP except for ash and fiber content.DiscussionThe physicochemical profile of the treatments of functional yogurt had a linear proportional connection in the percentage of both powders in the meantime. When both the dry level of powders increased, the protein and fat levels decreased. In the food industry, the freeze-dried soybean peel and the peel of mung bean can be utilized in functional yogurt as a source of bioactive components.
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30
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Hussain S, Okai Amu-Darko JN, Wang M, Alothman AA, Ouladsmane M, Aldossari SA, Khan MS, Qiao G, Liu G. CuO-decorated MOF derived ZnO polyhedral nanostructures for exceptional H 2S gas detection. Chemosphere 2023; 317:137827. [PMID: 36646181 DOI: 10.1016/j.chemosphere.2023.137827] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [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: 10/20/2022] [Revised: 12/07/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Considering that H2S is a hazardous gas that poses a significant risk to people's lives, research into H2S gas sensors has garnered a lot of interest. This work reports a CuO/ZnO multifaceted nanostructures(NS) created by heat treating Cu2+/ZIF-8 impregnation precursors, and their microstructure and gas sensing characteristics were examined using various characterization techniques (XRD, XPS, SEM, TEM, and BET). The as-prepared hollow CuO/ZnO multifunctional nanostructures had a high gas response value (425@50 ppm H2S gas), quick response and recovery times (57/191s @20 ppm), a low limit of detection (1.6@500 ppb H2S), good humidity resistance and highly selective towards H2S gas. The hollow CuO/ZnO multifaceted nanostructures possessed enhanced gas sensing capabilities which may be related to their porous hollow nanostructures, the manufactured p-CuO/n-ZnO heterojunctions, and the spillover effect between CuO and H2S.
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Affiliation(s)
- Shahid Hussain
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | | | - Mingsong Wang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Asma A Alothman
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohamed Ouladsmane
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Samar A Aldossari
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Muhammad Shahzeb Khan
- Department of Chemistry and Technology of Functional Materials, Gdansk University of Technology, Faculty of Chemistry, Narutowicza 11/12, 80-233, Gdansk, Poland
| | - Guanjun Qiao
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Guiwu Liu
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
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Du K, Wang M, Liang Z, Lv Q, Hou H, Lei S, Hussain S, Liu G, Liu J, Qiao G. Quasi-one-dimensional phosphorene nanoribbons grown on silicon by space-confined chemical vapor transport. Chem Commun (Camb) 2023; 59:2433-2436. [PMID: 36723200 DOI: 10.1039/d2cc06813c] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Phosphorene nanoribbons (PNRs) combine the flexibility of one-dimensional (1D) nanomaterials with the large specific surface area and the edge and electron confinement effects of two-dimensional (2D) nanomaterials. In spite of the substantial advances in bulk black phosphorus (BP) manufacturing, achieving PNRs without degradation is still a big challenge. In this work, we present a strategy for the space-confined chemical vapor transport synthesis of quasi-one-dimensional surface-passivated monocrystalline PNRs on a silicon substrate. The growth mechanism of the PNRs is proposed by combining experimental results and DFT calculations, indicating that the P4 molecules can break, restructure, and epitaxially nucleate on the surface of the Au3SnP7 catalyst, and finally prefer to grow along the zigzag (ZZ) direction to form PNRs. The low gas flow rate and an appropriate phosphorus molecule concentration allow the growth of PNRs with structural integrity, which can be regulated by the amount of red phosphorus and the confined space.
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Affiliation(s)
- Kaixiang Du
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Mingyuan Wang
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, School of Electrical Science and Engineering, Southeast University, 210096, Nanjing, China
| | - Zhiping Liang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Quanjiang Lv
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Haigang Hou
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Shuangying Lei
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, School of Electrical Science and Engineering, Southeast University, 210096, Nanjing, China
| | - Shahid Hussain
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Guiwu Liu
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Junlin Liu
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Guanjun Qiao
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
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Liang Z, Zhang X, Yang J, Cheng Y, Hou H, Hussain S, Liu J, Qiao G, Liu G. Facile fabrication of nanoflower-like WO 3/WS 2 heterojunction for highly sensitive NO 2 detection at room temperature. J Hazard Mater 2023; 443:130316. [PMID: 36370477 DOI: 10.1016/j.jhazmat.2022.130316] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 07/26/2022] [Revised: 09/29/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
Realizing efficient detection of ultra-low concentrations of hazardous gases contributes to air pollution monitoring, ecosystem and human health protection. Herein, we firstly fabricated the nanoflower-like WO3/WS2 composites by a facile process to highly sensitively detect NO2 at room temperature. The WO3 content in the WO3/WS2 composites can be adjusted by altering the calcination temperature, and the WO3 nanoparticles disperse uniformly on the WS2 surface, forming the WO3/WS2 heterojunction. The room-temperature responses of WO3/WS2 composites gradually climb with the NO2 concentration increasing from 0.005 to 5 ppm, and the WW-280 and WW-300 composites possess the optimal gas sensitivity when the NO2 concentrations are lower and higher than 100 ppb, respectively. In particular, the two WO3/WS2 composites present the limitation of detection (LOD) of ≤ 5 ppb, and they exhibit the excellent selectivity, good reproducibility and long-term stability towards NO2. A possible gas sensing mechanism was also proposed from the point of views of gas adsorption, redox reactions and electron transfer. The appropriate WO3 content and molar ratio of hexagonal to monoclinic WO3, and the formation of WO3/WS2 p-n heterojunction can contribute to the high sensitivity of WO3/WS2 composite to various concentrations of NO2. This work offers a promising gas sensing material for room-temperature detection to low concentrations of NO2.
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Affiliation(s)
- Zhiping Liang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiangzhao Zhang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jian Yang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yu Cheng
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Haigang Hou
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shahid Hussain
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Junlin Liu
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Guanjun Qiao
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Guiwu Liu
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China.
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Okai Amu-Darko JN, Hussain S, Zhang X, Alothman AA, Ouladsmane M, Nazir MT, Qiao G, Liu G. Metal-organic frameworks-derived In 2O 3/ZnO porous hollow nanocages for highly sensitive H 2S gas sensor. Chemosphere 2023; 314:137670. [PMID: 36581114 DOI: 10.1016/j.chemosphere.2022.137670] [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: 10/17/2022] [Revised: 11/28/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
The detection of hydrogen sulfide (H2S) is critical because of its potential harm and widespread presence in the oil and gas sectors. The zeolitic imidazolate framework-8 (ZIF-8) derived ZnO nanostructures manufactured as gas sensors have exceptional sensitivity and selectivity for H2S gas. In/Zn-ZIF-8 template material was synthesized by a simple one-step co-precipitation method followed by thermal annealing in air. The heat treatment resulted in In2O3/ZnO nanostructures with mixed heterostructures. The crystal structure (XRD), morphology (SEM/TEM), chemical state (XPS), surface area (BET), etc were investigated to ascertain the nature of the as-prepared material. SEM imagery revealed that the as-prepared In2O3/ZnO sensitive material had a microstructure of porous hollow nanocages with an average particle size of about 200 nm, which is beneficial to the diffusion and adsorption of gas molecules. The gas sensing performance test results of the In2O3/ZnO hollow nanocages show that their response to H2S gas is significantly improved 67.5 @50 ppm H2S (about 11 times that of pure ZnO nanocages) at an optimal temperature of 200 °C, better selectivity, lower theoretical detection limit and good linearity between gas concentration and response values. The enhanced gas sensing feat to H2S gas is mainly attributed to the formation of n-n heterojunction and the wide surface area of the newly formed In2O3/ZnO porous hollow nanocages.
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Affiliation(s)
| | - Shahid Hussain
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Xiangzhao Zhang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Asma A Alothman
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohamed Ouladsmane
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - M Tariq Nazir
- School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
| | - Guanjun Qiao
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Guiwu Liu
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China.
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Mourkus H, Hussain S, Khalefa MA, Vadivelu R, Prem H. Preventing pressure ulcers from paediatric femoral traction: use of an audit cycle to assess a new concise manual and a daily care chart. Ann R Coll Surg Engl 2023; 105:173-177. [PMID: 35174721 PMCID: PMC9889178 DOI: 10.1308/rcsann.2021.0282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2021] [Indexed: 02/03/2023] Open
Abstract
INTRODUCTION Femoral shaft fractures are common in children up to 14 years of age and traction is frequently used during their treatment. A lack of training and unfamiliarity of junior doctors and nursing staff with this treatment modality may lead to unfavourable skin complications, especially in the absence of regular monitoring. We introduced and audited a simple and reproducible way of monitoring these patients. METHODS An initial audit was conducted of all children with femoral shaft fracture treated in skin traction. A new traction manual and daily care chart were introduced, and a re-audit was performed. A parallel survey regarding skin traction in children was conducted involving 33 hospitals in the United Kingdom. RESULTS The initial audit showed three patients (23%) developed grade 2 pressure sores with a mean duration of traction of 8.5 days. A pressure sites check was documented in only 7.7%. A re-audit, after introduction of the traction manual and daily care chart showed a mean duration of traction of 8.4 days and only one patient (12.5%) developed a grade 1 sore. Pressure site monitoring improved significantly with 75% documentation. No daily care chart was used among the 33 centres in the survey and only 27% of centres had access to a manual in the ward. CONCLUSIONS Introduction of a single-page traction manual and a daily care chart into patient care notes to effectively monitor for pressure areas in children on skin traction helps reduce the incidence of serious skin complications.
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Affiliation(s)
- H Mourkus
- Birmingham Women’s and Children’s NHS Foundation Trust, UK
| | - S Hussain
- Birmingham Women’s and Children’s NHS Foundation Trust, UK
| | - MA Khalefa
- Birmingham Women’s and Children’s NHS Foundation Trust, UK
| | - R Vadivelu
- Birmingham Women’s and Children’s NHS Foundation Trust, UK
| | - H Prem
- Birmingham Women’s and Children’s NHS Foundation Trust, UK
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Hussain S, Shahzad M, Appolloni A, Xuetong W. The impact of public infrastructure project delays on sustainable community development. Environ Sci Pollut Res Int 2023; 30:40519-40533. [PMID: 36622583 DOI: 10.1007/s11356-022-24739-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 12/08/2022] [Indexed: 01/10/2023]
Abstract
Over the years, public infrastructure projects have generated substantial attention as they take the initiative to enrich sustainable community development. This paper looks to identify if the delays in public projects significantly impact the sustainable community development. A questionnaire survey approach is used to collect data. This study employed the partial least square structural equation modeling to examine the hypothesized model. Data obtained from 325 project experts in the Pakistani construction industry provided empirical support for the study. The outcome of the statistical analysis showed that project delay significantly influences sustainable community development. Based on the findings, this study suggests valuable insights to project management planners and executors to improve strategic planning for project executions through proper sustainability approaches.
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Affiliation(s)
- Shahid Hussain
- Department of Business Management, Karakoram International University, Gilgit, 15100, Pakistan.
| | - Mohsin Shahzad
- LNU-MSU College of International Business, Liaoning Normal University, Dalian, China
| | - Andrea Appolloni
- School of Economics, University of Rome Tor Vergata, Rome, Italy
| | - Wang Xuetong
- School of Management, Guangzhou University, Guangzhou, 510006, China
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Qazi AA, Ali M, Latif M, Naqvi SAA, Jalbani S, Jabeen F, Iqbal R, Farooq Z, Hamidullah, Malik K, Naz A, Hussain S, Iqbal MA, Hakim A, Tariq N, Kausar T. The level and distribution of selected organochlorine pesticides in water of River Satluj Pakistan. BRAZ J BIOL 2023; 83:e246776. [PMID: 36629624 DOI: 10.1590/1519-6984.246776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/23/2021] [Indexed: 01/09/2023] Open
Abstract
The study was aimed to identify different environmental factors (selected organochlorine pesticides) affecting the river water of Satluj. River Sutlej is about 1400 kilometers long and its water is extensively used for irrigation in Punjab, located both in India and Pakistan, which was also a reason of dispute between both countries for its water share. The study area was divided into four zones, Sulemanki Zone, Islam Zone, Mailsi Syphone Zone and Panjnad Zone. Liquid Liquid Extraction (LLE) technique was used for the collected water samples followed by high performance liquid chromatography (HPLC) UV-Visible detector The current finding revealed that aldrin was not detected during summer period in water samples of SZ-1 (Sulemanki Barrage), SZ-2 and SZ-3 (Maisli Siphon) of the study area. Lindane and DDE were found more in the samples of sediments from the study area at SZ-4 ranging from 2.238-8.226 ppb and 4.234-6.876 ppb, respectively. Heaptachlor (in sediments) was found to be0.032-234 ppb only at SZ-4.Endosulfan concentrations in water (winter) at SZ-3 was 0.06 ppb and at SZ-4,it was 0.05 ppb; dieldrin in water (winter) at SZ-4 was 0.0314 ppb and heptachlor was detected at SZ-1 (0.0315 ppb) and SZ-2 (0.0310 ppb) in water during winter season, were reaching to the Maximum Concentrations Limits (MCL), while all other residues investigated were found below the MCLin all the compartments of the study area set by various agencies like WHO/FAO- Codex Alimenterious. Present findings revealed that although the organochlorine pesticides are banned for agricultural use in many countries, including Pakistan, their presence in various samples might be due to illegal use of these pesticides in the study area and its neighboring regions. The overall study area comprises of mainly urban, suburban and agricultural land being the largest cotton growing area of the country. There is a need to take serious steps to minimize water pollution caused by pesticides to achieve a healthy lifestyle.
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Affiliation(s)
- A A Qazi
- Cholistan University of Veterinary and Animal Sciences, Department of Zoology, Bahawalpur, Pakistan
| | - M Ali
- Quaid e Azam University, Islamabad, Pakistan
| | - M Latif
- University of Education, Division of Science & Technology, Lahore, Pakistan
| | - S A A Naqvi
- Government College University, Department of Geography, Faisalabad, Pakistan
| | - S Jalbani
- Shaheed Benazir Bhutto University of Veterinary & Animal Sciences, Department of Fisheries & Aquaculture, Sakrand, Pakistan
| | - F Jabeen
- Government College University, Department of Zoology, Faisalabad, Pakistan
| | - R Iqbal
- Bahuddin Zakariya University, Institute of Pure and Applied Biology, Multan, Pakistan
| | - Z Farooq
- Cholistan University of Veterinary and Animal Sciences, Department of Zoology, Bahawalpur, Pakistan
| | - Hamidullah
- The Islamia University of Bahawalpur, Department of Zoology, Bahawalnagar, Pakistan
| | - K Malik
- Punjab University, Centre of Excellence in Molecular Biology, Lahore, Pakistan
| | - A Naz
- Children Hospital and Institute of Child Health, Department of Pathology, Multan, Pakistan
| | - S Hussain
- Government College University, Department of Zoology, Faisalabad, Pakistan
| | - M A Iqbal
- Gomal University, Department of Zoology, Dera Ismail Khan, Pakistan
| | - A Hakim
- Muhammad Nawaz Shareef University of Agriculture, Department of Computer Science, Multan, Pakistan
| | - N Tariq
- Sardar Bahadur Khan Women University, Department of Zoology, Quetta, Pakistan
| | - T Kausar
- Government Sadiq College Women University, Department of Zoology, Bahawalpur, Pakistan
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Hussain S, Shah ZA, Sabiruddin K, Keshri AK. Characterization and tribological behaviour of Indian clam seashell-derived hydroxyapatite coating applied on titanium alloy by plasma spray technique. J Mech Behav Biomed Mater 2023; 137:105550. [PMID: 36356422 DOI: 10.1016/j.jmbbm.2022.105550] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/26/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
Various hydroxyapatite (HA) powders synthesized at different temperatures are deposited on titanium alloy by using an atmospheric plasma spray process. These different HA powders were synthesized from Indian clam seashells through the hydrothermal technique at varying temperatures from 700 to 1000 °C for a 2 h time duration in our previous study. The synthesized HA powders are spray-dried to obtain agglomerated powders suitable for spraying during the coating application. Crystallite size, Ca/P ratio, and crystallinity of agglomerated HA powders and their respective coatings are estimated by standard methods. The microstructure and phases of the feedstock and coating materials are investigated by using a field-emission scanning electron microscope (FESEM) and X-ray diffractometer (XRD), respectively. Further, the HA coatings are characterized in terms of surface roughness, microhardness, porosity, adhesion strength, and wear resistance through the stylus profilometer, Vickers micro-hardness tester, image analysis technique, scratch tester, and ball-on-disc tribometer, respectively. The average surface roughness (Ra) and porosity of the coating are decreased with an increase in the synthesis temperature. The minimum Ra and porosity obtained for the 1000 °C coating sample suggest a high degree of melting of such powder particles. However, the highest adhesion strength noticed in the case of the 900 °C coating sample is due to the high compatibility of such coating material with Ti-alloy substrate in terms of thermal properties. The 900 °C coating sample has also shown the highest microhardness and wear-resistance properties due to its maximum crystallinity among all the HA coatings.
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Affiliation(s)
- Shahid Hussain
- Department of Mechanical Engineering, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Zuber Ali Shah
- Department of Mechanical Engineering, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Kazi Sabiruddin
- Department of Mechanical Engineering, Indian Institute of Technology Indore, Simrol, Indore, 453552, India.
| | - Anup Kumar Keshri
- Plasma Spray Coating Laboratory, Metallurgical and Materials Engineering, Indian Institute of Technology Patna, Patna, Bihar, 801106, India
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Qazi AA, Ali M, Jabeen F, Iqbal R, Iqbal MA, Latif M, Farooq Z, Kausar T, Naz A, Naqvi SAA, Hussain S, Mahmood MT, Malik K, Hakim A, Ullah H, Tariq N, Jalbani S. Presence of selected organochlorine pesticides (OCPs) in sediments and biota of River Satluj, Pakistan: first report. BRAZ J BIOL 2023; 83:e243905. [DOI: 10.1590/1519-6984.243905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 01/19/2021] [Indexed: 11/16/2022] Open
Abstract
Abstract In the developed countries, the use of OCPs (organochlorine pesticides) has been banned. However, in South Asia several of them are still in use. In Pakistan and India a constant addition of OCPs into the atmosphere has been indicated by various researchers. In this study levels of selected organochlorine pesticide residues were assessed in sediment and biota collected from four (4) water reservoirs (3 Barrages & 1 Siphon) on the River Satluj Pakistan, along 231 miles (372 km) of River stretch which was further divided into 12 sampling sites. It was aimed to find out the levels of organochlorine pesticide (OCPs) residues in sediments and from selected fish species (Labeo rohita, Wallagu attu, Cyprinus carpio) of the River Satluj Pakistan. The Organochlorine residues (seven pesticides) present in samples of sediments and biota were investigated through multi residue method, using Gas Chromatograph (GC-ECD).In the current study, the concentration of DDT, was investigated in Wallago attu (0.786-3.987 ppb), Labeo rohita (0.779-4.355 ppb) and Cyprinus carpio (1.234-5.654 ppb). DDE was also found in Cyprinus carpio (1.244-6.322 ppb), Wallag attu (0.877-4.221 ppb) and Labeo rohita (2.112-5.897 ppb). Aldrin was not observed in Labeo rohita and Wallago attu. Currently, lindane and DDE was found predominately high in the sediments of study area at SZ-4 (Panjnad Barrage) ranging (2.238-8.226 ppb) and (4.234-6.876 ppb), respectively. Heaptachlor was found only at SZ-4 (Panjnad Barrage) from the sediments with concentration ranging (0.032-234 ppb). In short all other residues investigated were found below the MCL (maximum concentration level) in all the compartments of the study area set by various agencies like WHO/FAO- Codex Alimenterious.
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Affiliation(s)
- A. A. Qazi
- Cholistan University of Veterinary and Animal Sciences, Pakistan
| | - M. Ali
- Quaid e Azam University, Pakistan
| | | | - R. Iqbal
- Bahuddin Zakariya University, Pakistan
| | | | - M. Latif
- University of Education, Pakistan
| | - Z. Farooq
- Cholistan University of Veterinary and Animal Sciences, Pakistan
| | - T. Kausar
- Sadiq College Women University, Pakistan
| | - A. Naz
- Children Hospital and Institute of Child Health, Pakistan
| | | | | | - M. T. Mahmood
- Cholistan University of Veterinary and Animal Sciences, Pakistan
| | | | - A. Hakim
- Muhammad Nawaz shareef University of agriculture, Pakistan
| | - H. Ullah
- The Islamia University of Bahawalpur, Pakistan
| | - N. Tariq
- Sardar Bahadur Khan Women University, Pakistan
| | - S. Jalbani
- Shaheed Benazir Bhutto University of Veterinary & Animal Sciences, Pakistan
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Hussain S, Yates C, Campbell MJ. Vitamin D and Systems Biology. Nutrients 2022; 14:nu14245197. [PMID: 36558356 PMCID: PMC9782494 DOI: 10.3390/nu14245197] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/28/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
The biological actions of the vitamin D receptor (VDR) have been investigated intensively for over 100 years and has led to the identification of significant insights into the repertoire of its biological actions. These were initially established to be centered on the regulation of calcium transport in the colon and deposition in bone. Beyond these well-known calcemic roles, other roles have emerged in the regulation of cell differentiation processes and have an impact on metabolism. The purpose of the current review is to consider where applying systems biology (SB) approaches may begin to generate a more precise understanding of where the VDR is, and is not, biologically impactful. Two SB approaches have been developed and begun to reveal insight into VDR biological functions. In a top-down SB approach genome-wide scale data are statistically analyzed, and from which a role for the VDR emerges in terms of being a hub in a biological network. Such approaches have confirmed significant roles, for example, in myeloid differentiation and the control of inflammation and innate immunity. In a bottom-up SB approach, current biological understanding is built into a kinetic model which is then applied to existing biological data to explain the function and identify unknown behavior. To date, this has not been applied to the VDR, but has to the related ERα and identified previously unknown mechanisms of control. One arena where applying top-down and bottom-up SB approaches may be informative is in the setting of prostate cancer health disparities.
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Affiliation(s)
- Shahid Hussain
- Division of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Clayton Yates
- Department of Biology and Center for Cancer Research, Tuskegee University, Tuskegee, AL 36088, USA
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Oncology Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Moray J. Campbell
- Division of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
- Correspondence:
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Ali I, Rafique R, Khan KM, Chigurupati S, Ji X, Wadood A, Rehman AU, Salar U, Alyamani NM, Hameed S, Taha M, Hussain S, Perveen S. Benzofuran Hybrids as Cholinesterase (AChE and BChE) Inhibitors: In Vitro, In Silico, and Kinetic Studies. Russ J Bioorg Chem 2022; 48:1322-1337. [DOI: 10.1134/s1068162022060061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 07/19/2022] [Accepted: 07/25/2022] [Indexed: 10/23/2023]
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41
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Hussain S, Dey A, Shapiro C. Do Changes In Sleep Microenvironment Temperatures Influence Sleep Quality in Adults? Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Butt S, Khan SUR, Hussain S, Wang WL. A conceptual model supporting decision-making for test automation in agile-based software development. DATA KNOWL ENG 2022. [DOI: 10.1016/j.datak.2022.102111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Hussain S, Liu Q, Maroof Z, Ji R, Wang S. Ultra-broadband and high-efficiency planar chiral metamaterial. Opt Lett 2022; 47:5700-5703. [PMID: 37219307 DOI: 10.1364/ol.474003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/07/2022] [Indexed: 05/24/2023]
Abstract
To date, the helix-like assemblies are known for delivering the most broadband chiroptic response; however, as their dimensions shrink to the nanoscale, it becomes increasingly difficult to realize three-dimensional (3D) building blocks and accurate alignments. In addition, a continuous optical channel requirement hinders the downsizing for integrated photonics. Here, we introduce an alternative approach based on two assembled layers of dielectric-metal nanowires to demonstrate that chiroptic effects similar to helix-like metamaterials can be realized with an ultracompact planar structure by creating dissymmetry using orientation and making use of interference phenomena. We constructed two polarization filters for the near-(NIR) and the mid-infrared (MIR) spectrums that exhibit a broadband (0.835-2.11 µm and 3.84-10.64 µm) chiroptic response with maximum transmission and circular dichroism (CD) of approximately 0.965 and extinction ratio > 600. The structure is easy to fabricate, independent of alignments, and scalable from the visible to MIR range for applications including imaging, medical diagnostics, polarization conversion, and optical communication.
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Waite S, Tor PC, Mohan T, Davidson D, Hussain S, Dong V, Loo CK, Martin DM. The utility of the Sydney Melancholia Prototype Index (SMPI) for predicting response to electroconvulsive therapy in depression: A CARE Network study. J Psychiatr Res 2022; 155:180-185. [PMID: 36054966 DOI: 10.1016/j.jpsychires.2022.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 08/03/2022] [Accepted: 08/15/2022] [Indexed: 11/16/2022]
Abstract
An enhanced understanding of clinical predictors of positive ECT outcome could assist with the decision to prescribe ECT for select patients. Reliable predictors of ECT response such as psychotic symptoms and age have been identified, however, studies of melancholia and ECT response have been inconsistent. The Sydney Melancholia Prototype Index (SMPI) is a clinical measure designed to differentiate melancholic and non-melancholic depression. This study aimed to investigate whether melancholic depression (as measured by the clinician rated version of the SMPI) predicted a better response to ECT than non-melancholic depression. The study included data collated from four participating sites in the Clinical Alliance for ECT and Related treatments (CARE) network. The primary outcome was response (>50% improvement) on the Montgomery Asberg Depression Rating Scale (MADRS) and the secondary outcome was raw change in MADRS score. Of the 329 depressed patients included in the study, 81% had melancholic features and 76% met criteria for clinical response. SMPI defined melancholia was associated with older age, higher pre-treatment mood scores and presence of psychosis. Melancholia as defined by the SMPI, however, did not significantly predict either clinical response or overall mood improvement with ECT in multivariate analyses. Instead, older age, greater pre-treatment depression severity and the use of bifrontal compared to right unilateral ultrabrief ECT were significant predictors of mood improvement. Path analysis showed that higher pre-treatment mood score and older age were independently associated with mood improvement with ECT.
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Affiliation(s)
- S Waite
- The Queen Elizabeth Hospital, South Australia, Australia
| | - P C Tor
- Institute of Mental Health, Singapore
| | - T Mohan
- Flinders Medical Centre, South Australia, Australia
| | - D Davidson
- Flinders Medical Centre, South Australia, Australia
| | - S Hussain
- Sir Charles Gairdner Hospital, North Metro Health Service, Western Australia, Australia; Medical School, Faculty of Health and Medical Sciences, The University of Western Australia, Australia; Section of ECT and Neurostimulation, Royal Australian and New Zealand College of Psychiatrists, Australia
| | - V Dong
- Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia; Black Dog Institute, Sydney, NSW, Australia
| | - C K Loo
- Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia; Black Dog Institute, Sydney, NSW, Australia
| | - D M Martin
- Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia; Black Dog Institute, Sydney, NSW, Australia.
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Madigan M, Mohammad A, Hussain S. Reporting of incidental coronary artery and aortic valve calcification on standard thoracic CTs. Clin Radiol 2022. [DOI: 10.1016/j.crad.2022.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Sanchez-Ceinos J, Hussain S, Waheed-Khan A, Zhang L, Pernow J, Cosentino F. Adverse epigenetic signatures driven by histone methyltransferase EZH2 contribute to hyperglycaemia-induced endothelial dysfunction. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.3020] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
Posttranslational modifications of histones play a critical role in regulating gene expression in health and disease. Activation of histone methyltransferase enhancer of zeste homolog 2 (EZH2) catalyses repressive trimethylation of histone 3 at lysine residue 27 (H3K27me3) and favours reactive oxygen species (ROS) generation as well as pro-inflammatory changes. Oxidative stress and inflammation are linked to hyperglycaemia-induced endothelial dysfunction.
Purpose
The present study was designed to investigate whether EZH2 may represent a novel therapeutic target against hyperglycaemia-induced abnormal phenotypes in the endothelium.
Methods
The effect of EZH2 was tested in aortas from male mice (3–5 months old), human aortic endothelial cells (HAECs) and aortic endothelial cells isolated from diabetic individuals (D-HAECs) in the presence and in the absence of pharmacological inhibitor GSK126 (5 μM) or gene silencing of EZH2. HAECs and aortic rings were exposed either to normal glucose (5 mM) or high glucose (25 mM) for 20 hrs. Expression levels of H3K27me3, EZH2, oxidant and pro-inflammatory genes were determined by RT-PCR, western blotting, and protein activation assay kits. Superoxide anion production was measured by electron spin resonance spectroscopy. Binding of H3K27me3 to the promoter region of candidate genes was evaluated by chromatin immunoprecipitation (ChIP). Endothelium-dependent and independent relaxations were assessed in aortic rings by organ chamber experiments.
Results
Immunoblotting showed a significant increase in EZH2 activity measured as H3K27me3 in HAECs exposed to high glucose and in D-HAEC. ChIP assays showed that binding of H3K27me3 to the promoter of anti-oxidant and transcription factor JunD genes triggers ROS generation and activation of inflammatory pathways. Interestingly enough, histone methyltransferase EZH2 inhibitor GSK126 or specific siRNA blunting H3K27me3 abolished hyperglycaemia-induced oxidative stress and inflammation. Moreover, targeting EZH2 rescued endothelial function.
Conclusions
These results uncover adverse epigenetic signatures underlying endothelial dysfunction in diabetes. Targeting EZH2 may attenuate oxidative and inflammatory transcriptional programmes and thus prevent vascular disease in this setting.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): Swedish Research Council, the Swedish Heart & Lung Foundation, and King Gustav V and Queen Victoria Foundation.
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Affiliation(s)
- J Sanchez-Ceinos
- Karolinska Institutet, Cardiology Unit, Dept Medicine, Solna, Karolinska University Hospital , Stockholm , Sweden
| | - S Hussain
- Karolinska Institutet, Cardiology Unit, Dept Medicine, Solna, Karolinska University Hospital , Stockholm , Sweden
| | - A Waheed-Khan
- Monash University, Dept. Diabetes, Central Clinical School , Melbourne , Australia
| | - L Zhang
- Karolinska Institutet, Cardiology Unit, Dept Medicine, Solna, Karolinska University Hospital , Stockholm , Sweden
| | - J Pernow
- Karolinska Institutet, Cardiology Unit, Dept Medicine, Solna, Karolinska University Hospital , Stockholm , Sweden
| | - F Cosentino
- Karolinska Institutet, Cardiology Unit, Dept Medicine, Solna, Karolinska University Hospital , Stockholm , Sweden
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Zulfaj E, Redfors B, Nejat A, Shekka Espinosa A, Hussain S, Haamid A, Elmahdy A, Kakei Y, Omerovic E. Takotsubo syndrome-like model in rats with high reproducibility and low mortality. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.798] [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: 11/12/2022] Open
Abstract
Abstract
Background/Purpose
Takotsubo syndrome (TS) is an acute form of heart failure with similar mortality and clinical presentation as myocardial infarction. The pathophysiology of the potentially life-threatening syndrome is only partially understood. This experimental study aimed to produce a human-like TS model with high reproducibility and low mortality. Rats have been the small-animal model of choice for preclinical studies within the cardiovascular field, successfully translating gained knowledge to humans. A relevant animal model can aid in elucidating mechanisms behind TS and serve as a platform for developing evidence-based treatment guidelines specific for the disease, which are currently missing.
Methods
190 Sprague Dawley rats (male, ∼300 g, ∼47 d) were infused i.v. with a single dose of the β-adrenergic agonist isoprenaline. The first study group was randomized by infusion time (ranging from 1 min to 60 min) while maintaining a fixed total dose (6.25 mg/kg), and the second group by total dose (0.1–50 mg/kg) with specified infusion time. The studies were replicated with saline infusion as a control. This study looked at mortality, the incidence of apical akinesia, the extent of apical akinesia, and recovery time. ECG, HR, SpO2, and temperature were monitored during the induction phase (<60 min) and at time points for imaging. High-resolution speckle-tracking echocardiography was used to study heart function for up to 30 days. The study followed the principles of laboratory animal care and was approved by our institution's Animal Ethics Committee.
Results
Mechanical dyssynchrony preceded global contractile dysfunction and development of transient apical akinesia. LV function and contractility normalised after 1 to 7 days. All surviving rats showed normal behaviour, ECG, and imaging at 30 days. TS-like phenotype was achieved in 92.9% of survivors. Mortality at 30-day was 6.7%. The deceased animals developed complications like TS patients including heart failure, malignant arrhythmias, LV mural thrombus formation, cardiogenic shock. Longer infusion time was associated with increased mortality (p=0.002), but not with the incidence of akinesia (p=0.818). The extent of apical akinesia decreased at the shortest infusion time (1 min) while at 7.5 minutes and above, it did not differ. The replication study validated these findings, although variability in incidence and mortality was seen across the groups.
Conclusions
This study provides a highly reproducible TS-like model with low mortality and excellent translational potential. High-resolution imaging and the natural course demonstrated the presence of the most critical characteristics of TS-like phenotype as in humans. The model also validates other findings related to TS including variability in the susceptibility to develop TS-like phenotype and complications. Our model provides a solid experimental platform for future preclinical studies of TS.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): ALF - Swedish Research Council
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Affiliation(s)
- E Zulfaj
- Sahlgrenska Academy - University of Gothenburg , Goteborg , Sweden
| | - B Redfors
- Sahlgrenska Academy - University of Gothenburg , Goteborg , Sweden
| | - A Nejat
- Sahlgrenska Academy - University of Gothenburg , Goteborg , Sweden
| | | | - S Hussain
- Sahlgrenska Academy - University of Gothenburg , Goteborg , Sweden
| | - A Haamid
- Sahlgrenska Academy - University of Gothenburg , Goteborg , Sweden
| | - A Elmahdy
- Sahlgrenska Academy - University of Gothenburg , Goteborg , Sweden
| | - Y Kakei
- Sahlgrenska Academy - University of Gothenburg , Goteborg , Sweden
| | - E Omerovic
- Sahlgrenska Academy - University of Gothenburg , Goteborg , Sweden
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Jha S, Poller A, Shekka Espinosa A, Thorleifsson S, Zeijlon R, Hussain S, Bobbio E, Martinsson A, Pirazzi C, Rydenstam Mellberg T, Elmahdy A, Kakaei Y, Kalani M, Omerovic E, Redfors B. Early changes in myocardial stunning and biomarkers after ST-elevation myocardial infarction compared to the takotsubo syndrome. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1430] [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
Background
Takotsubo syndrome (TS) and ST-elevation myocardial infarction (STEMI) are both characterized by sudden cessation of myocardial contractions (myocardial stunning) as well as elevation of cardiac troponins and B-type natriuretic peptides (BNP). Whereas STEMI results in variable degrees of necrosis and persistent cardiac dysfunction, TS results in little to any necrosis and full recovery of cardiac function. No “head-to-head” comparison of the temporal resolution of myocardial stunning and serum biomarkers in STEMI versus takotsubo has been done.
Purpose
To compare the time course of the recovery of cardiac function and serum biomarkers over the acute and subacute phases of takotsubo and STEMI, with patients with STEMI further subdivided into anterior and non-anterior STEMI.
Method
The Stunning In Takotsubo and Acute Myocardial Infarction (STAMI) study is a prospective, multi-center study that enrolls patients with TS or STEMI without known pre-existing cardiac dysfunction. Echocardiography, laboratory testing (including troponins and NT-proBNP), and ECG are acquired within 4 hours after acute coronary angiography and at 24±6, 48±12, 72±12 hours and 7±1, 14±2, and 30±2 days. The primary endpoint is the proportion of reversible myocardial akinesia resolved after 72 hours (Figure 1), as determined by echocardiography. Secondary endpoints include troponin-I, troponin-T, and NT-proBNP.
Results
Preliminary results from 155 patients with STEMI (78 anterior STEMI and 77 non-anterior STEMI) and 32 patients with TS are presented in Figure 1. Mean (SD) age was similar for patients with takotsubo (67±14), anterior STEMI (68±11), and non-anterior STEMI (68±10). All 3 groups showed substantial recovery of cardiac function over the course of the study, with the most pronounced recovery of cardiac function in TS. Compared to both STEMI groups, the TS group also had lower troponin-I to troponin-T ratio, and higher NT-proBNP (Figure 2). The proportion of reversible akinesia that had recovered at 72 hours was similar in patients with TS, anterior STEMI and non-anterior STEMI (p=0.8414).
Conclusion
The STAMI study will provide the comprehensive assessment of cardiac function and serum biomarker profile of patients with takotsubo and STEMI over the early course of the disease. Preliminary data from the study suggest that early myocardial functional recovery is more substantial but follows a similar time-course in takotsubo and STEMI. The differences in the magnitude of troponin elevation after takotsubo versus STEMI were more pronounced for troponin-I than T.
Funding Acknowledgement
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): ERC - European Research Council
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Affiliation(s)
- S Jha
- Sahlgrenska University Hospital , Gothenburg , Sweden
| | - A Poller
- Sahlgrenska University Hospital , Gothenburg , Sweden
| | | | | | - R Zeijlon
- Sahlgrenska University Hospital , Gothenburg , Sweden
| | - S Hussain
- Sahlgrenska Academy , Gothenburg , Sweden
| | - E Bobbio
- Sahlgrenska University Hospital , Gothenburg , Sweden
| | - A Martinsson
- Sahlgrenska University Hospital , Gothenburg , Sweden
| | - C Pirazzi
- Sahlgrenska University Hospital , Gothenburg , Sweden
| | | | - A Elmahdy
- Sahlgrenska Academy , Gothenburg , Sweden
| | - Y Kakaei
- Sahlgrenska Academy , Gothenburg , Sweden
| | - M Kalani
- Sahlgrenska Academy , Gothenburg , Sweden
| | - E Omerovic
- Sahlgrenska University Hospital , Gothenburg , Sweden
| | - B Redfors
- Sahlgrenska University Hospital , Gothenburg , Sweden
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Hussain S, Thakur S, Shukla S, Breslin JG, Jan Q, Khan F, Kim YS. A two-layer decentralized charging approach for residential electric vehicles based on fuzzy data fusion. Journal of King Saud University - Computer and Information Sciences 2022. [DOI: 10.1016/j.jksuci.2022.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Griswold-Prenner I, Hussain S. Key Oncogenic Proteins Are Regulated By Enzyme-Driven Nitration. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01111-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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