1
|
Ali N, Ismail IMI, Alamri SH, Alhakamy NA, Summan A, Rehan M, Alshareef BS, Rajeh N, Eqani SAMAS. Toxic trespassers: Uncovering phthalates and organophosphate flame retardants in children's rooms and their health implications. Sci Total Environ 2023; 903:166663. [PMID: 37652382 DOI: 10.1016/j.scitotenv.2023.166663] [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: 07/15/2023] [Revised: 08/21/2023] [Accepted: 08/26/2023] [Indexed: 09/02/2023]
Abstract
Organophosphate flame retardants (OPEs) and phthalates have garnered significant attention due to their widespread presence in indoor environments. Many recent investigations have reported extensive contamination of indoor dust, air, children's toys, and other environmental compartments with these chemicals. This research aimed to analyze OPEs and phthalates in air (PM10) and dust samples collected from the bedrooms of children (N = 30) residing in various households in Jeddah, Saudi Arabia. High mean levels (ng/g) of phthalates namely DEHP (1438600) and DnBP (159200) were found in indoor dust while TPhP (5620) was the major OPEs in indoor dust. Similarly, DEHP and DnBP were the predominant phthalates in PM10 samples, exhibiting mean levels of 560 and 680 ng/m3, respectively. However, TCPP was the main OPEs with average levels of 72 ng/m3 in PM10 samples. The majority of individual phthalates and OPEs were detected in 90-100 % of the dust samples, whereas in PM10 samples, their presence ranged from 25 % to 100 %. The concentrations of OPEs were notably greater than those of PBDEs and other BFRs previously reported in these samples, suggesting their broader use than alternative BFRs. The estimated long-term non-carcinogenic risk, hazardous index (HI) and daily exposure via dust for children was above threshold levels for DEHP. On the other hand, the cumulative risk of cancer was below the concerning levels. Further research is required to explore diverse groups of chemicals in indoor microenvironments particularly significant for children, such as kindergartens, primary schools, and their rooms at home.
Collapse
Affiliation(s)
- Nadeem Ali
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Iqbal M I Ismail
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sultan H Alamri
- Department of Family Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Nabil A Alhakamy
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia; Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah, Saudi Arabia; Mohamed Saeed Tamer Chair for Pharmaceutical Industries, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ahmed Summan
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Nisreen Rajeh
- Department of Clinical Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | | |
Collapse
|
2
|
Waqas M, Nizami AS, Aburiazaiza AS, Jabeen F, Arikan OA, Anees A, Hussain F, Javed MH, Rehan M. Unlocking integrated waste biorefinery approach by predicting calorific value of waste biomass. Environ Res 2023; 237:116943. [PMID: 37619627 DOI: 10.1016/j.envres.2023.116943] [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] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/08/2023] [Accepted: 08/19/2023] [Indexed: 08/26/2023]
Abstract
The current study analyzed the high heating values (HHVs) of various waste biomass materials intending to the effective management and more sustainable consumption of waste as clean energy source. Various biomass waste samples including date leaves, date branches, coconut leaves, grass, cooked macaroni, salad, fruit and vegetable peels, vegetable scraps, cooked food waste, paper waste, tea waste, and cardboard were characterized for proximate analysis. The results revealed that all the waste biomass were rich in organic matter (OM). The total OM for all waste biomass ranged from 79.39% to 98.17%. Likewise, the results showed that all the waste biomass resulted in lower ash content and high fixed carbon content associated with high fuel quality. Based on proximate analysis, various empirical equations (HHV=28.296-0.2887(A)-656.2/VM, HHV=18.297-0.4128(A)+35.8/FC and HHV=22.3418-0.1136(FC)-0.3983(A)) have been tested to predict HHVs. It was observed that the heterogeneous nature of various biomass waste considerably affects the HHVs and hence has different fuel characteristics. Similarly, the HHVs of waste biomass were also determined experimentally using the bomb calorimeter, and it was observed that among all the selected waste biomass, the highest HHVs (21.19 MJ kg-1) resulted in cooked food waste followed by cooked macaroni (20.25 MJ kg-1). The comparison revealed that experimental HHVs for the selected waste biomass were slightly deviated from the predicted HHVs. Based on HHVs, various thermochemical and biochemical technologies were critically overviewed to assess the suitability of waste biomass to energy products. It has been emphasized that valorizing waste-to-energy technologies provides the dual benefits of sustainable management and production of cleaner energy to reduce fossil fuels dependency. However, the key bottleneck in commercializing waste-to-energy systems requires proper waste collection, sorting, and continuous feedstock supply. Moreover, related stakeholders should be involved in designing and executing the decision-making process to facilitate the global recognition of waste biorefinery concept.
Collapse
Affiliation(s)
- M Waqas
- Department of Environmental Sciences, Kohat University of Science and Technology, 26000, Kohat, Pakistan.
| | - A S Nizami
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - A S Aburiazaiza
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - F Jabeen
- Department of Environmental Sciences, Abdul Wali Khan University, Mardan, Pakistan
| | - O A Arikan
- Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - A Anees
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - F Hussain
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - M H Javed
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - M Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
3
|
Rehan M, Deskin B, Kurundkar AR, Yadav S, Matsunaga Y, Manges J, Smith N, Dsouza KG, Burow ME, Thannickal VJ. Nicotinamide N-methyltransferase mediates lipofibroblast-myofibroblast transition and apoptosis resistance. J Biol Chem 2023; 299:105027. [PMID: 37423298 PMCID: PMC10413354 DOI: 10.1016/j.jbc.2023.105027] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 06/01/2023] [Accepted: 06/23/2023] [Indexed: 07/11/2023] Open
Abstract
Metabolism controls cellular phenotype and fate. In this report, we demonstrate that nicotinamide N-methyltransferase (NNMT), a metabolic enzyme that regulates developmental stem cell transitions and tumor progression, is highly expressed in human idiopathic pulmonary fibrosis (IPF) lungs, and is induced by the pro-fibrotic cytokine, transforming growth factor-β1 (TGF-β1) in lung fibroblasts. NNMT silencing reduces the expression of extracellular matrix proteins, both constitutively and in response to TGF-β1. Furthermore, NNMT controls the phenotypic transition from homeostatic, pro-regenerative lipofibroblasts to pro-fibrotic myofibroblasts. This effect of NNMT is mediated, in part, by the downregulation of lipogenic transcription factors, TCF21 and PPARγ, and the induction of a less proliferative but more differentiated myofibroblast phenotype. NNMT confers an apoptosis-resistant phenotype to myofibroblasts that is associated with the downregulation of pro-apoptotic members of the Bcl-2 family, including Bim and PUMA. Together, these studies indicate a critical role for NNMT in the metabolic reprogramming of fibroblasts to a pro-fibrotic and apoptosis-resistant phenotype and support the concept that targeting this enzyme may promote regenerative responses in chronic fibrotic disorders such as IPF.
Collapse
Affiliation(s)
- Mohammad Rehan
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA.
| | - Brian Deskin
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA; Southeast Louisiana Veterans Health Care System, New Orleans, Louisiana, USA
| | - Ashish R Kurundkar
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Santosh Yadav
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA; Southeast Louisiana Veterans Health Care System, New Orleans, Louisiana, USA
| | - Yasuka Matsunaga
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Justin Manges
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA; Southeast Louisiana Veterans Health Care System, New Orleans, Louisiana, USA
| | - Nia Smith
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA; Southeast Louisiana Veterans Health Care System, New Orleans, Louisiana, USA
| | - Kevin G Dsouza
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Matthew E Burow
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Victor J Thannickal
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA; Southeast Louisiana Veterans Health Care System, New Orleans, Louisiana, USA.
| |
Collapse
|
4
|
Jathar LD, Ganesan S, Awasarmol U, Nikam K, Shahapurkar K, Soudagar MEM, Fayaz H, El-Shafay AS, Kalam MA, Bouadila S, Baddadi S, Tirth V, Nizami AS, Lam SS, Rehan M. Comprehensive review of environmental factors influencing the performance of photovoltaic panels: Concern over emissions at various phases throughout the lifecycle. Environ Pollut 2023; 326:121474. [PMID: 36965686 DOI: 10.1016/j.envpol.2023.121474] [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: 12/24/2022] [Revised: 02/13/2023] [Accepted: 03/19/2023] [Indexed: 06/18/2023]
Abstract
Recently, solar photovoltaic (PV) technology has shown tremendous growth among all renewable energy sectors. The attractiveness of a PV system depends deeply of the module and it is primarily determined by its performance. The quantity of electricity and power generated by a PV cell is contingent upon a number of parameters that can be intrinsic to the PV system itself, external or environmental. Thus, to improve the PV panel performance and lifetime, it is crucial to recognize the main parameters that directly influence the module during its operational lifetime. Among these parameters there are numerous factors that positively impact a PV system including the temperature of the solar panel, humidity, wind speed, amount of light, altitude and barometric pressure. On the other hand, the module can be exposed to simultaneous environmental stresses such as dust accumulation, shading and pollution factors. All these factors can gradually decrease the performance of the PV panel. This review not only provides the factors impacting PV panel's performance but also discusses the degradation and failure parameters that can usually affect the PV technology. The major points include: 1) Total quantity of energy extracted from a photovoltaic module is impacted on a daily, quarterly, seasonal, and yearly scale by the amount of dust formed on the surface of the module. 2) Climatic conditions as high temperatures and relative humidity affect the operation of solar cells by more than 70% and lead to a considerable decrease in solar cells efficiency. 3) The PV module current can be affected by soft shading while the voltage does not vary. In the case of hard shadowing, the performance of the photovoltaic module is determined by whether some or all of the cells of the module are shaded. 4) Compared to more traditional forms of energy production, PV systems offer a significant number of advantages to the environment. Nevertheless, these systems can procure greenhouse gas emissions, especially during the production stages. In conclusion, this study underlines the importance of considering multiple parameters while evaluating the performance of photovoltaic modules. Environmental factors can have a major impact on the performance of a PV system. It is critical to consider these factors, as well as intrinsic and other intermediate factors, to optimize the performance of solar energy systems. In addition, continuous monitoring and maintenance of PV systems is essential to ensure maximum efficiency and performance.
Collapse
Affiliation(s)
- Laxmikant D Jathar
- Department of Mechanical Engineering, Army Institute of Technology Pune, Maharashtra, 411015, India
| | - S Ganesan
- Department of Mechanical Engineering, Vel Tech Rangarajan & Dr. Sagunthala R & D Institute of Science and Technology Chennai, Tamil Nadu, 600062, India
| | - Umesh Awasarmol
- Department of Mechanical Engineering, Army Institute of Technology Pune, Maharashtra, 411015, India
| | - Keval Nikam
- Department of Mechanical Engineering, Dr. D. Y. Patil Institute of Engineering, Management and Research, Akurdi, Pune, 411044, India
| | - Kiran Shahapurkar
- Department of Mechanical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama, 1888, Ethiopia
| | - Manzoore Elahi M Soudagar
- Department of Mechanical Engineering and University Centre for Research & Development, Chandigarh University, Mohali, Punjab, 140413, India; Department of Mechanical Engineering, School of Technology, Glocal University, Delhi-Yamunotri Marg, Uttar Pradesh, 247121, India
| | - H Fayaz
- Modeling Evolutionary Algorithms Simulation and Artificial Intelligence, Faculty of Electrical & Electronics Engineering, Ton Duc Thang University, Ho Chi Minh, Viet Nam
| | - A S El-Shafay
- Department of Mechanical Engineering, College of Engineering in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942 Saudi Arabia; Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, 35516, Egypt
| | - M A Kalam
- School of Civil and Environmental Engineering, FEIT, University of Technology Sydney, NSW, 2007, Australia
| | - Salwa Bouadila
- Centre de Recherches et des Technologies de L'Energie, Technopole de Borj-Cédria, B.P N° 95 2050, Hamam Lif, Ben Arous, Tunisia
| | - Sara Baddadi
- Centre de Recherches et des Technologies de L'Energie, Technopole de Borj-Cédria, B.P N° 95 2050, Hamam Lif, Ben Arous, Tunisia
| | - Vineet Tirth
- Mechanical Engineering Department, College of Engineering, King Khalid University, Abha, 61421, Asir, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, 61413, P.O. Box No. 9004, Asir, Saudi Arabia
| | - Abdul Sattar Nizami
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia; Sustainable Development Study Centre (SDSC), Government College University, Lahore, Pakistan
| | - Su Shiung Lam
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia; Center for Transdisciplinary Research, Saveetha Institute of Medical and Technical Sciences, Saveetha University , Chennai, India
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia.
| |
Collapse
|
5
|
Rashid MI, Shah GA, Iqbal Z, Ramzan M, Rehan M, Ali N, Shahzad K, Summan A, Ismail IMI, Ondrasek G. Nanobiochar Associated Ammonia Emission Mitigation and Toxicity to Soil Microbial Biomass and Corn Nutrient Uptake from Farmyard Manure. Plants (Basel) 2023; 12:plants12091740. [PMID: 37176798 PMCID: PMC10181413 DOI: 10.3390/plants12091740] [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: 02/26/2023] [Revised: 04/16/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023]
Abstract
The unique properties of NB, such as its nano-size effect and greater adsorption capacity, have the potential to mitigate ammonia (NH3) emission, but may also pose threats to soil life and their associated processes, which are not well understood. We studied the influence of different NB concentrations on NH3 emission, soil microbial biomass, nutrient mineralization, and corn nutrient uptake from farmyard manure (FM). Three different NB concentrations i.e., 12.5 (NB1), 25 (NB2), and 50% (NB3), alone and in a fertilizer mixture with FM, were applied to corn. NB1 alone increased microbial biomass in soil more than control, but other high NB concentrations did not influence these parameters. In fertilizer mixtures, NB2 and NB3 decreased NH3 emission by 25% and 38%, respectively, compared with FM alone. Additionally, NB3 significantly decreased microbial biomass carbon, N, and soil potassium by 34%, 36%, and 14%, respectively, compared with FM. This toxicity to soil parameters resulted in a 21% decrease in corn K uptake from FM. Hence, a high NB concentration causes toxicity to soil microbes, nutrient mineralization, and crop nutrient uptake from the FM. Therefore, this concentration-dependent toxicity of NB to soil microbes and their associated processes should be considered before endorsing NB use in agroecosystems.
Collapse
Affiliation(s)
- Muhammad Imtiaz Rashid
- Center of Excellence in Environmental Studies, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
| | - Ghulam Abbas Shah
- Department of Agronomy, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46300, Pakistan
| | - Zahid Iqbal
- Department of Soil Science, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46300, Pakistan
| | - Muhammad Ramzan
- Department of Agronomy, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46300, Pakistan
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
| | - Nadeem Ali
- Center of Excellence in Environmental Studies, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
| | - Khurram Shahzad
- Center of Excellence in Environmental Studies, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
| | - Ahmad Summan
- Center of Excellence in Environmental Studies, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Iqbal M I Ismail
- Center of Excellence in Environmental Studies, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia
| | - Gabrijel Ondrasek
- Department of Soil Amelioration, Faculty of Agriculture, University of Zagreb, 10000 Zagreb, Croatia
| |
Collapse
|
6
|
Madhav H, Abdel-Rahman SA, Hashmi MA, Rahman MA, Rehan M, Pal K, Nayeem SM, Gabr MT, Hoda N. Multicomponent Petasis reaction for the identification of pyrazine based multi-target directed anti-Alzheimer's agents: In-silico design, synthesis, and characterization. Eur J Med Chem 2023; 254:115354. [PMID: 37043996 DOI: 10.1016/j.ejmech.2023.115354] [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: 02/01/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/14/2023]
Abstract
Multi-target directed ligands (MTDLs) have recently attracted significant interest due to their exceptional effectiveness against multi-factorial Alzheimer's disease. The present work described the development of pyrazine-based MTDLs using multicomponent Petasis reaction for the dual inhibition of tau-aggregation and human acetylcholinesterase (hAChE). The molecular structure of synthesized ligands was validated by 1H & 13C NMR and mass spectrometry. The screened compounds were shown to have a strong inhibitory effect at 10 μM concentration against tau-oligomerization and hAChE, but only moderate inhibitory activity against Aβ42. Among all the compounds, the half-maximal inhibitory concentration (IC50) for 21 and 24 against hAChE were 0.71 μM and 1.09 μM, respectively, while they displayed half-maximal effective concentrations (EC50) values of 2.21 μM and 2.71 μM for cellular tau-oligomerization, respectively. Additionally, an MTT experiment using tau-expressing SH-SY5Y neuroblastoma cells revealed that 21 was more neuroprotective than the FDA-approved medication donepezil. Furthermore, an MD simulation study was performed to investigate the dynamics and stability of AChE-21 and AChE-24 complexes in an aqueous environment. The MM-PBSA calculations were performed to evaluate the binding of 21 and 24 with AChE, and the relative binding energy was calculated as -870.578 and -875.697 kJ mol-1, respectively. As a result, the study offered insight into the design of new MTDLs and highlighted 21 as a potential roadblock to the development of anti-AD medications.
Collapse
Affiliation(s)
- Hari Madhav
- Drug Design and Synthesis Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India
| | - Somaya A Abdel-Rahman
- Molecular Imaging Innovations Institute (MI3), Department of Radiology, Weill Cornell Medicine, New York, NY, 10065, USA; Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Md Amiruddin Hashmi
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Md Ataur Rahman
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, 02138, USA
| | - Mohammad Rehan
- Max-Planck-Institute für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, 44227, Dortmund, Germany
| | - Kavita Pal
- Drug Design and Synthesis Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India
| | - Shahid M Nayeem
- Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Moustafa T Gabr
- Molecular Imaging Innovations Institute (MI3), Department of Radiology, Weill Cornell Medicine, New York, NY, 10065, USA.
| | - Nasimul Hoda
- Drug Design and Synthesis Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India.
| |
Collapse
|
7
|
Ali N, Rashid MI, Rehan M, Shah Eqani SAMA, Summan ASA, Ismail IMI, Koller M, Ali AM, Shahzad K. Environmental Evaluation of Polyhydroxyalkanoates from Animal Slaughtering Waste Using Material Input Per Service Unit. N Biotechnol 2023; 75:40-51. [PMID: 36948413 DOI: 10.1016/j.nbt.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/28/2023] [Accepted: 03/19/2023] [Indexed: 03/24/2023]
Abstract
The massive production and extensive use of fossil-based non-biodegradable plastics are leading to their environmental accumulation and ultimately cause health threats to animals, humans, and the biosphere in general. The problem can be overcome by developing eco-friendly ways for producing plastics-like biopolymers from waste residues such as of agricultural origin. This will solve two currently prevailing social issues: waste management and the efficient production of a biopolymer that is environmentally benign, polyhydroxyalkanoates (PHA). The current study assesses the environmental impact of biopolymer (PHA) manufacturing, starting from slaughterhouse waste as raw material. The Material Input Per Service Unit methodology (MIPS) is used to examine the sustainability of the PHA production process. In addition, the impact of shifting from business-as-usual energy provision (i.e., electricity from distribution grid network and heat provision from natural gas) to alternative renewable energy sources is also evaluated. As a major outcome, it is shown that the abiotic material contribution for PHA production process is almost double for using hard coal as an energy source than the petro-plastic low-density-poly(ethene) (LPDE), which PHA shall ultimately replace. Likewise, abiotic material contribution is 43% and 7% higher when using the electricity from the European electricity mix (EU-27 mix) and biogas, respectively, than in the case of LDPE production. However, PHA production based on wind power for energy provision has 12% lower abiotic material input than LDPE. Furthermore, the water input decreases when moving from the EU-27 mix to wind power. The reduction in water consumption for various electricity provision resources amounts to 20% for the EU-27 mix, 25% for hard coal, 71% for wind, and 70% for biogas. As the main conclusion, it is demonstrated that using wind farm electricity to generate PHA is the most environmentally friendly choice. Biogas is the second-best choice, although it requires additional abiotic material input.
Collapse
Affiliation(s)
- Nadeem Ali
- Centre of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Muhammad Imtiaz Rashid
- Centre of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Mohammad Rehan
- Centre of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Syed Ali Musstjab Akber Shah Eqani
- Public Health and Environment Division, Department of Biosciences, COMSATS Institute of Information Technology, Islamabad 45550, Pakistan
| | - Ahmed Saleh Ahmed Summan
- Centre of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | | | - Martin Koller
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28/IV, A-8010 Graz, Austria; ARENA Arbeitsgemeinschaft für Ressourcenschonende & Nachhaltige Technologien, Graz, Austria.
| | - Arshid Mahmood Ali
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Khurram Shahzad
- Centre of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.
| |
Collapse
|
8
|
Abdel-Baky NF, Motawei MI, Al-Nujiban AAS, Aldeghairi MA, Al-Shuraym LAM, Alharbi MTM, Alsohim AS, Rehan M. Detection of adaptive genetic diversity and chemical composition in date palm cultivars and their implications in controlling red palm weevil, Rhynchophorus ferrugineus Oliver. BRAZ J BIOL 2023; 83:e270940. [PMID: 37042912 DOI: 10.1590/1519-6984.270940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/02/2023] [Indexed: 04/13/2023] Open
Abstract
This study, about RPW and date palms, is under the scope of date palm bioecology and nutrition (nutritional ecology) which includes the integration of several areas of research such as date palm biochemistry, genetics, and RPW infestation behavior through various date palm cultivars. Date palm (Phoenix dactylifera L.; Arecaceae) production is under threat from the red palm weevil (RPW), Rhynchophorus ferrugineus Oliver. A better understanding of genetic diversity within date palm cultivars can be useful for its implementation within the insect IPM program in the future. Three indices, namely simple-sequence repeats (SSR) markers to elucidate genetic diversity, chemical components, and a natural infestation index of RPW, were used to evaluate the resistant or susceptible date palm cultivars in Qassim. Based on a field survey of RPW infestation within 79 date palm farms involving 11 cultivars at Qassim, the sensitivity and resistance cultivars were determined. The resistant date palm cultivars were Nabtat Ali, Shakrah, red Sukary, and um Kobar which had the lowest degree of RPW abundance %. Values of the essential minerals, nitrogen, phosphorus, potassium, and calcium within the date palm cultivars were also estimated. RPW abundance % was negatively correlated with the calcium content of date palm cultivars. The principal component analysis (PCA) revealed that the calcium content and RPW abundance % were highly affected by the cultivars. SSR markers of the date palm cluster tree divided genotypes into two main groups at similarity coefficients between 0.56 and 0.91. The 1st group included; Nabtet Ali, Red Sukary, Um Kobar, and Shakrah with similarity coefficients between 0.56, this group was the most resistant cultivars. Therefore, SSR markers were able to characterize and resolve genetic diversity in date palm cultivars for RPW resistance. When SSR markers coupled with higher calcium (Ca) content can efficiently replace indices in characterizing resistant date-palm genotypes with a high confidence level. Integration between date palm genetic diversity, chemical structures, and RPW infestations rates promoted the understanding of the interplay between the diversity of RPW management (short-time scale), and the resistance genes, plant nutrition, and dynamics of the diversity of RPW through domestication and diversification (long-timescale). Therefore, our results may lead to a change in RPW control strategies by switching to using safe alternative pesticide control methods (Resistant cultivars of date palm), which are underestimated and may reveal the impact of low-cost, but highly effective agricultural practices in the field of date production in the world. Understanding the genetic structure and calcium content of date palm cultivars mechanisms could help to predict date palm resistance against RPW populations in the new IPM strategy in RPW control.
Collapse
Affiliation(s)
- N F Abdel-Baky
- Qassim University, College of Agriculture and Veterinary Medicine, Department of Plant Production and Protection, Buraydah 51452, Saudi Arabia
- Mansoura University, Faculty of Agriculture, Economic Entomology Department, Mansoura 35516, Egypt
| | - M I Motawei
- Qassim University, College of Agriculture and Veterinary Medicine, Department of Plant Production and Protection, Buraydah 51452, Saudi Arabia
- Alexandria University, College of Agriculture, Department of Crop Science, Alexandria, Egypt
| | - A A S Al-Nujiban
- Qassim University, College of Science and Arts, Department of Biology, Unaizah, Saudi Arabia
| | - M A Aldeghairi
- Qassim University, College of Agriculture and Veterinary Medicine, Department of Plant Production and Protection, Buraydah 51452, Saudi Arabia
| | - L A M Al-Shuraym
- Princess Nourah Bint Abdulrahman University, College of Science, Department of Biology, Riyadh, Saudi Arabia
| | - M T M Alharbi
- Princess Nourah Bint Abdulrahman University, College of Science, Department of Biology, Riyadh, Saudi Arabia
- Ministry of Environment, Water, and Agriculture, Red Palm Weevil Control Program in Qassim, Buraydah, Saudi Arabia
| | - A S Alsohim
- Qassim University, College of Agriculture and Veterinary Medicine, Department of Plant Production and Protection, Buraydah 51452, Saudi Arabia
| | - M Rehan
- Qassim University, College of Agriculture and Veterinary Medicine, Department of Plant Production and Protection, Buraydah 51452, Saudi Arabia
- Kafr Elsheikh University, College of Agriculture, Department of Genetics, Kafr El-Sheikh 33516, Egypt
| |
Collapse
|
9
|
Saito S, Deskin B, Rehan M, Yadav S, Matsunaga Y, Lasky JA, Thannickal VJ. Novel mediators of idiopathic pulmonary fibrosis. Clin Sci (Lond) 2022; 136:1229-1240. [PMID: 36043396 DOI: 10.1042/cs20210878] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 08/04/2022] [Accepted: 08/08/2022] [Indexed: 11/17/2022]
Abstract
Fibrosis involving the lung may occur in many settings, including in association with known environmental agents, connective tissue diseases, and exposure to drugs or radiation therapy. The most common form is referred to as 'idiopathic' since a causal agent or specific association has not been determined; the strongest risk factor for idiopathic pulmonary fibrosis is aging. Emerging studies indicate that targeting certain components of aging biology may be effective in mitigating age-associated fibrosis. While transforming growth factor-β1 (TGF-β1) is a central mediator of fibrosis in almost all contexts, and across multiple organs, it is not feasible to target this canonical pathway at the ligand-receptor level due to the pleiotropic nature of its actions; importantly, its homeostatic roles as a tumor-suppressor and immune-modulator make this an imprudent strategy. However, defining targets downstream of its receptor(s) that mediate fibrogenesis, while relatively dispenable for tumor- and immune-suppressive functions may aid in developing safer and more effective therapies. In this review, we explore molecular targets that, although TGF-β1 induced/activated, may be relatively more selective in mediating tissue fibrosis. Additionally, we explore epigenetic mechanisms with global effects on the fibrogenic process, as well as metabolic pathways that regulate aging and fibrosis.
Collapse
Affiliation(s)
- Shigeki Saito
- Section of Pulmonary Diseases, Critical Care and Environmental Medicine, John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, U.S.A
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, U.S.A, and the Southeast Louisiana Veterans Health Care System, New Orleans, LA, U.S.A
| | - Brian Deskin
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, U.S.A, and the Southeast Louisiana Veterans Health Care System, New Orleans, LA, U.S.A
| | - Mohammad Rehan
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, U.S.A, and the Southeast Louisiana Veterans Health Care System, New Orleans, LA, U.S.A
| | - Santosh Yadav
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, U.S.A, and the Southeast Louisiana Veterans Health Care System, New Orleans, LA, U.S.A
| | - Yasuka Matsunaga
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, U.S.A, and the Southeast Louisiana Veterans Health Care System, New Orleans, LA, U.S.A
| | - Joseph A Lasky
- Section of Pulmonary Diseases, Critical Care and Environmental Medicine, John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, U.S.A
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, U.S.A, and the Southeast Louisiana Veterans Health Care System, New Orleans, LA, U.S.A
| | - Victor J Thannickal
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, U.S.A, and the Southeast Louisiana Veterans Health Care System, New Orleans, LA, U.S.A
| |
Collapse
|
10
|
Abdel-Baky NF, Aldeghairi MA, Motawei MI, Al-Shuraym LAM, Al-Nujiban AAS, Alharbi MTM, Rehan M. Monitoring of infestation percentages of the invasive red palm weevil, Rhynchophorus ferrugineus (Coleoptera: Curculionidae), and management tactics: a six-year study. BRAZ J BIOL 2022; 82:e263707. [PMID: 35946641 DOI: 10.1590/1519-6984.263707] [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: 05/04/2022] [Accepted: 07/07/2022] [Indexed: 11/22/2022] Open
Abstract
Red palm weevil (RPW), Rhynchophorus ferrugineus (Olivier) (Coleoptera, Curculionidae), is a devastating invasive pest, that invaded Saudi Arabia's date palms in 1987. Evaluation of the infestations and the efficacy of both preventative and control treatments have been studied from 2015- 2020 in Qassim. The results indicated that the number of infested date palms varied according to the years and locations. The infested date palm trees percentage was relatively high in 2016 (2.24%) and 2017 (3.19%), then gradually decreased to reach its lowest in 2020 (0.73%) due to the management protocol applied by the Ministry of Environment, Water, and Agriculture. Furthermore, the infested palm trees' percentage varied among the eight study locations, reaching the highest percentage in location G (SA7) with a general average of 4.31%. While in the other locations, the general infested percentage average was very low when compared to location G (SA7) with 1.21 and 0.47% in locations A (SA1) and H (SA8), respectively. The effectiveness of control methods increased sharply from 52.141% in 2015 to 90.0% in 2020 with a general average of 72.73%. The quarantine and management protocols of R. ferruginous applied in Qassim decreased the number of palm infestations. Contrary, the intensive use of insecticide in the last two decades promoted genetic mutations within the Rhynchophorus, which led to the emergence of a new species R. bilineatus. This leads to increase pesticide pollution, and control costs and the insect becomes more resistant to pesticides.
Collapse
Affiliation(s)
- N F Abdel-Baky
- Qassim University, College of Agriculture and Veterinary Medicine, Department of Plant Production and Protection, Buraydah, Saudi Arabia.,Mansoura University, Faculty of Agriculture, Economic Entomology Department, Mansoura, Egypt
| | - M A Aldeghairi
- Qassim University, College of Agriculture and Veterinary Medicine, Department of Plant Production and Protection, Buraydah, Saudi Arabia
| | - M I Motawei
- Qassim University, College of Agriculture and Veterinary Medicine, Department of Plant Production and Protection, Buraydah, Saudi Arabia.,Alexandria University, College of Agriculture, Department of Crop Science, Alexandria, Egypt
| | - L A M Al-Shuraym
- Princess Nourah Bint Abdulrahman University, College of Science, Department of Biology, Riyadh, Saudi Arabia
| | - A A S Al-Nujiban
- Qassim University, College of Science and Arts, Department of Biology, Unaizah, Saudi Arabia
| | - M T M Alharbi
- Ministry of Environment, Water, and Agriculture, Red Palm Weevil Control Program, Qassim, Saudi Arabia
| | - M Rehan
- Qassim University, College of Agriculture and Veterinary Medicine, Department of Plant Production and Protection, Buraydah, Saudi Arabia.,Kafrelsheikh University, Department of Genetics, College of Agriculture, Kafr El-Sheikh, Egypt
| |
Collapse
|
11
|
Rehan M, Munir S. Analysis and Modeling of Air Pollution in Extreme Meteorological Conditions: A Case Study of Jeddah, the Kingdom of Saudi Arabia. Toxics 2022; 10:toxics10070376. [PMID: 35878281 PMCID: PMC9320433 DOI: 10.3390/toxics10070376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/26/2022] [Accepted: 07/01/2022] [Indexed: 02/01/2023]
Abstract
Air pollution has serious environmental and human health-related consequences; however, little work seems to be undertaken to address the harms in Middle Eastern countries, including Saudi Arabia. We installed a continuous air quality monitoring station in Jeddah, Saudi Arabia and monitored several air pollutants and meteorological parameters over a 2-year period (2018–2019). Here, we developed two supervised machine learning models, known as quantile regression models, to analyze the whole distribution of the modeled pollutants, not only the mean values. Two pollutants, namely NO2 and O3, were modeled by dividing their concentrations into several quantiles (0.05, 0.25, 0.50, 0.75, and 0.95) and the effect of several pollutants and meteorological variables was analyzed on each quantile. The effect of the explanatory variables changed at different segments of the distribution of NO2 and O3 concentrations. For instance, for the modeling of O3, the coefficients of wind speed at quantiles 0.05, 0.25, 0.5, 0.75, and 0.95 were 1.40, 2.15, 2.34, 2.31, and 1.56, respectively. Correlation coefficients of 0.91 and 0.92 and RMSE values of 14.41 and 8.96, which are calculated for the cross-validated models of NO2 and O3, showed an acceptable model performance. Quantile analysis aids in better understanding the behavior of air pollution and how it interacts with the influencing factors.
Collapse
Affiliation(s)
- Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: ; Tel.: +966-583047435
| | - Said Munir
- Institute for Transport Studies, Faculty of Environment, University of Leeds, Leeds LS2 9JT, UK;
| |
Collapse
|
12
|
Tawfik A, Ismail S, Elsayed M, Qyyum MA, Rehan M. Sustainable microalgal biomass valorization to bioenergy: Key challenges and future perspectives. Chemosphere 2022; 296:133812. [PMID: 35149012 DOI: 10.1016/j.chemosphere.2022.133812] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/19/2022] [Accepted: 01/28/2022] [Indexed: 05/16/2023]
Abstract
The global trend is shifting toward circular economy systems. It is a sustainable environmental approach that sustains economic growth from the use of resources while minimizing environmental impacts. The multiple industrial use of microalgal biomass has received great attention due to its high content of essential nutrients and elements. Nevertheless, low biomass productivity, unbalanced carbon to nitrogen (C/N) ratio, resistant cellular constituents, and the high cost of microalgal harvesting represent the major obstacles for valorization of algal biomass. In recent years, microalgae biomass has been a candidate as a potential feedstock for different bioenergy generation processes with simultaneous treating wastewater and CO2 capture. An overview of the appealing features and needed advancements is urgently essential for microalgae-derived bioenergy generation. The present review provides a timely outlook and evaluation of biomethane production from microalgal biomass and related challenges. Moreover, the biogas recovery potential from microalgal biomass through different pretreatments and synergistic anaerobic co-digestion (AcoD) with other biowastes are evaluated. In addition, the removal of micropollutants and heavy metals by microalgal cells via adsorption and bioaccumulation in their biomass is discussed. Herein, a comprehensive review is presented about a successive high-throughput for anaerobic digestion (AD) of the microalgal biomass in order to achieve for sustainable energy source. Lastly, the valorization of the digestate from AD of microalgae for agricultural reuse is highlighted.
Collapse
Affiliation(s)
- Ahmed Tawfik
- Water Pollution Research Department, National Research Centre, Giza, 12622, Egypt.
| | - Sherif Ismail
- Environmental Engineering Department, Zagazig University, Zagazig, 44519, Egypt
| | - Mahdy Elsayed
- Agricultural Engineering Department, Faculty of Agriculture, Cairo University, 12613, Giza, Egypt
| | - Muhammad Abdul Qyyum
- Department of Petroleum & Chemical Engineering, Sultan Qaboos University, Muscat, Oman.
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
13
|
Ranjbari M, Shams Esfandabadi Z, Ferraris A, Quatraro F, Rehan M, Nizami AS, Gupta VK, Lam SS, Aghbashlo M, Tabatabaei M. Biofuel supply chain management in the circular economy transition: An inclusive knowledge map of the field. Chemosphere 2022; 296:133968. [PMID: 35181422 DOI: 10.1016/j.chemosphere.2022.133968] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/08/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Investment in biofuels, as sustainable alternatives for fossil fuels, has gained momentum over the last decade due to the global environmental and health concerns regarding fossil fuel consumption. Hence, effective management of biofuel supply chain (BSC) components, including biomass feedstock production, biomass logistics, biofuel production in biorefineries, and biofuel distribution to consumers, is crucial in transitioning towards a low-carbon and circular economy (CE). The present study aims to render an inclusive knowledge map of the BSC-related scientific production. In this vein, a systematic review, supported by a keywords co-occurrence analysis and qualitative content analysis, was carried out on a total of 1,975 peer-reviewed journal articles in the target literature. The analysis revealed four major research hotspots in the BSC literature, namely (1) biomass-to-biofuel supply chain design and planning, (2) environmental impacts of biofuel production, (3) biomass to bioenergy, and (4) techno-economic analysis of biofuel production. Besides, the findings showed that the following subject areas of research in the BSC research community have recently attracted more attention: (i) global warming and climate change mitigation, (ii) development of the third-generation biofuels produced from algal biomass, which has recently gained momentum in the CE debate, and (iii) government incentives, pricing, and subsidizing policies. The provided insights shed light on the understanding of researchers, stakeholders, and policy-makers involved in the sustainable energy sector by outlining the main research backgrounds, developments, and tendencies within the BSC arena. Looking at the provided knowledge map, potential research directions in BSCs towards implementing the CE model, including (i) integrative policy convergence at macro, meso, and micro levels, and (ii) industrializing algae-based biofuel production towards the CE transition, were proposed.
Collapse
Affiliation(s)
- Meisam Ranjbari
- Henan Province Forest Resources Sustainable Development and High-value Utilization Engineering Research Center, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China; Department of Economics and Statistics "Cognetti de Martiis", University of Turin, Turin, Italy.
| | - Zahra Shams Esfandabadi
- Department of Environment, Land and Infrastructure Engineering (DIATI), Politecnico di Torino, Turin, Italy; Energy Center Lab, Politecnico di Torino, Turin, Italy
| | - Alberto Ferraris
- Department of Management, University of Turin, Turin, Italy; Laboratory for International and Regional Economics, Graduate School of Economics and Management, Ural Federal University, Russia; Faculty of Economics and Business, University of Rijeka, Croatia
| | - Francesco Quatraro
- Department of Economics and Statistics "Cognetti de Martiis", University of Turin, Turin, Italy; BRICK, Collegio Carlo Alberto, Piazza Arbarello 8, 10123, Turin, Italy
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdul-Sattar Nizami
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia; Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG, UK; Centre for Safe and Improved Foods, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG, UK
| | - Su Shiung Lam
- Henan Province Forest Resources Sustainable Development and High-value Utilization Engineering Research Center, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China; Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia.
| | - Mortaza Aghbashlo
- Henan Province Forest Resources Sustainable Development and High-value Utilization Engineering Research Center, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China; Department of Mechanical Engineering of Agricultural Machinery, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
| | - Meisam Tabatabaei
- Henan Province Forest Resources Sustainable Development and High-value Utilization Engineering Research Center, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China; Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia; Biofuel Research Team (BRTeam), Terengganu, Malaysia.
| |
Collapse
|
14
|
Madhav H, Jameel E, Rehan M, Hoda N. Recent advancements in chromone as a privileged scaffold towards the development of small molecules for neurodegenerative therapeutics. RSC Med Chem 2022; 13:258-279. [PMID: 35434628 PMCID: PMC8942243 DOI: 10.1039/d1md00394a] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 01/27/2022] [Indexed: 02/02/2023] Open
Abstract
Neurodegenerative disorders, i.e., Alzheimer's or Parkinson's disease, involve progressive degeneration of the central nervous system, resulting in memory loss and cognitive impairment. The intensification of neurodegenerative research in recent years put some molecules into clinical trials, but still there is an urgent need to develop effective therapeutic molecules to combat these diseases. Chromone is a well-identified privileged structure for the design of well-diversified therapeutic molecules of potential pharmacological interest, particularly in the field of neurodegeneration. In this short review, we focused on the recent advancements and developments of chromones for neurodegenerative therapeutics. Different small molecules were reviewed as multi-target-directed ligands (MTDLs) with potential inhibition of AChE, BuChE, MAO-A, MAO-B, Aβ plaque formation and aggregation. Recently developed MTDLs emphasized that the chromone scaffold has the potential to develop new molecules for the treatment of neurodegenerative diseases.
Collapse
Affiliation(s)
- Hari Madhav
- Drug Design and Synthesis Laboratory, Department of Chemistry, Jamia Millia IslamiaNew Delhi110025India
| | - Ehtesham Jameel
- College of Pharmaceutical Sciences, Zhejiang UniversityHangzhouPR China
| | - Mohammad Rehan
- Max-Planck-Institute für Molekulare Physiologie, Abteilung Chemische BiologieOtto-Hahn-Straße 1144227 DortmundGermany
| | - Nasimul Hoda
- Drug Design and Synthesis Laboratory, Department of Chemistry, Jamia Millia IslamiaNew Delhi110025India
| |
Collapse
|
15
|
Abd El-Malek F, Rofeal M, Zabed HM, Nizami AS, Rehan M, Qi X. Microorganism-mediated algal biomass processing for clean products manufacturing: Current status, challenges and future outlook. Fuel 2022; 311:122612. [DOI: 10.1016/j.fuel.2021.122612] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
|
16
|
Mahmoud MM, Alshawli AS, Assidi M, Abu-Elmagd M, Al-Maghrabi J, Rehan M, Yacoub HA, Buhmeida A. Favourable Prognosis Value of Matrix Metalloproteinase-10 Overexpression in Urinary Bladder Cancer. Indian J Pharm Sci 2022. [DOI: 10.36468/pharmaceutical-sciences.spl.454] [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: 11/22/2022] Open
|
17
|
Khan MI, Almesfer MK, Elkhaleefa A, Shigidi I, Shamim MZ, Ali IH, Rehan M. Conductive Polymers and Their Nanocomposites as Adsorbents in Environmental Applications. Polymers (Basel) 2021; 13:3810. [PMID: 34771368 PMCID: PMC8587430 DOI: 10.3390/polym13213810] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 10/27/2021] [Accepted: 10/29/2021] [Indexed: 12/29/2022] Open
Abstract
Proper treatment and disposal of industrial pollutants of all kinds are a global issue that presents significant techno-economical challenges. The presence of pollutants such as heavy metal ions (HMIs) and organic dyes (ODs) in wastewater is considered a significant problem owing to their carcinogenic and toxic nature. Additionally, industrial gaseous pollutants (GPs) are considered to be harmful to human health and may cause various environmental issues such as global warming, acid rain, smog and air pollution, etc. Conductive polymer-based nanomaterials have gained significant interest in recent years, compared with ceramics and metal-based nanomaterials. The objective of this review is to provide detailed insights into different conductive polymers (CPs) and their nanocomposites that are used as adsorbents for environmental remediation applications. The dominant types of CPs that are being used as adsorbent materials include polyaniline (PANI), polypyrrole (Ppy), and polythiophene (PTh). The various adsorption mechanisms proposed for the removal of ODs, HMIs, and other GPs by the different CPs are presented, together with their maximum adsorption capacities, experimental conditions, adsorption, and kinetic models reported.
Collapse
Affiliation(s)
- Mohammad Ilyas Khan
- Department of Chemical Engineering, College of Engineering, King Khalid University, Abha 62529, Saudi Arabia; (M.K.A.); (A.E.); (I.S.)
| | - Mohammed Khaloufa Almesfer
- Department of Chemical Engineering, College of Engineering, King Khalid University, Abha 62529, Saudi Arabia; (M.K.A.); (A.E.); (I.S.)
| | - Abubakr Elkhaleefa
- Department of Chemical Engineering, College of Engineering, King Khalid University, Abha 62529, Saudi Arabia; (M.K.A.); (A.E.); (I.S.)
| | - Ihab Shigidi
- Department of Chemical Engineering, College of Engineering, King Khalid University, Abha 62529, Saudi Arabia; (M.K.A.); (A.E.); (I.S.)
| | - Mohammed Zubair Shamim
- Department of Electrical Engineering, College of Engineering, King Khalid University, Abha 62529, Saudi Arabia;
| | - Ismat H. Ali
- Department of Chemistry, College of Science, King Khalid University, Abha 62529, Saudi Arabia;
| | - Mohammad Rehan
- Centre of Excellence in Environmental Studies, King Abdulaziz University, Jeddah 21577, Saudi Arabia;
| |
Collapse
|
18
|
Chanda D, Rehan M, Smith SR, Dsouza KG, Wang Y, Bernard K, Kurundkar D, Memula V, Kojima K, Mobley JA, Benavides GA, Darley-Usmar V, Kim YIL, Zmijewski JW, Deshane JS, De Langhe S, Thannickal VJ. Mesenchymal stromal cell aging impairs the self-organizing capacity of lung alveolar epithelial stem cells. eLife 2021; 10:68049. [PMID: 34528872 PMCID: PMC8445616 DOI: 10.7554/elife.68049] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 08/20/2021] [Indexed: 11/13/2022] Open
Abstract
Multicellular organisms maintain structure and function of tissues/organs through emergent, self-organizing behavior. In this report, we demonstrate a critical role for lung mesenchymal stromal cell (L-MSC) aging in determining the capacity to form three-dimensional organoids or 'alveolospheres' with type 2 alveolar epithelial cells (AEC2s). In contrast to L-MSCs from aged mice, young L-MSCs support the efficient formation of alveolospheres when co-cultured with young or aged AEC2s. Aged L-MSCs demonstrated features of cellular senescence, altered bioenergetics, and a senescence-associated secretory profile (SASP). The reactive oxygen species generating enzyme, NADPH oxidase 4 (Nox4), was highly activated in aged L-MSCs and Nox4 downregulation was sufficient to, at least partially, reverse this age-related energy deficit, while restoring the self-organizing capacity of alveolospheres. Together, these data indicate a critical role for cellular bioenergetics and redox homeostasis in an organoid model of self-organization and support the concept of thermodynamic entropy in aging biology.
Collapse
Affiliation(s)
- Diptiman Chanda
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States
| | - Mohammad Rehan
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, United States
| | - Samuel R Smith
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States
| | - Kevin G Dsouza
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States
| | - Yong Wang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States
| | - Karen Bernard
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States
| | - Deepali Kurundkar
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States
| | - Vinayak Memula
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States.,Department of Surgery, Birmingham, United States
| | - Kyoko Kojima
- Comprehensive Cancer Center Mass Spectrometry & Proteomics Shared Facility, Birmingham, United States
| | - James A Mobley
- Department of Anesthesiology and Perioperative Medicine, Birmingham, United States
| | | | | | - Young-iL Kim
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States.,Division of Preventive Medicine, Department of Medicine; University of Alabama at Birmingham, Birmingham, United States
| | - Jaroslaw W Zmijewski
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States
| | - Jessy S Deshane
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States
| | - Stijn De Langhe
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Birmingham, United States
| | - Victor J Thannickal
- John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, United States
| |
Collapse
|
19
|
Khattab T, Mashaly H, Ahmed H, Rehan M, El-Halwagy A. Multi-stimuli Responsive Natural Fibers Immobilized with Silver Nanoparticles via Plasma-activated Generation of Polyaniline. Egypt J Chem 2021. [DOI: 10.21608/ejchem.2021.83132.4081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
20
|
Anwar MN, Shabbir M, Tahir E, Iftikhar M, Saif H, Tahir A, Murtaza MA, Khokhar MF, Rehan M, Aghbashlo M, Tabatabaei M, Nizami AS. Emerging challenges of air pollution and particulate matter in China, India, and Pakistan and mitigating solutions. J Hazard Mater 2021; 416:125851. [PMID: 34492802 DOI: 10.1016/j.jhazmat.2021.125851] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 03/11/2021] [Accepted: 04/06/2021] [Indexed: 06/13/2023]
Abstract
This study examines point and non-point sources of air pollution and particulate matter and their associated socioeconomic and health impacts in South Asian countries, primarily India, China, and Pakistan. The legislative frameworks, policy gaps, and targeted solutions are also scrutinized. The major cities in these countries have surpassed the permissible limits defined by WHO for sulfur dioxide, carbon monoxide, particulate matter, and nitrogen dioxide. As a result, they are facing widespread health problems, disabilities, and causalities at extreme events. Populations in these countries are comparatively more prone to air pollution effects because they spend more time in the open air, increasing their likelihood of exposure to air pollutants. The elevated level of air pollutants and their long-term exposure increases the susceptibility to several chronic/acute diseases, i.e., obstructive pulmonary diseases, acute respiratory distress, chronic bronchitis, and emphysema. More in-depth spatial-temporal air pollution monitoring studies in China, India, and Pakistan are recommended. The study findings suggest that policymakers at the local, national, and regional levels should devise targeted policies by considering all the relevant parameters, including the country's economic status, local meteorological conditions, industrial interests, public lifestyle, and national literacy rate. This approach will also help design and implement more efficient policies which are less likely to fail when brought into practice.
Collapse
Affiliation(s)
- Muhammad Naveed Anwar
- Sustainable Development Study Centre, Government College University, Lahore 54000, Pakistan.
| | - Muneeba Shabbir
- Sustainable Development Study Centre, Government College University, Lahore 54000, Pakistan
| | - Eza Tahir
- Sustainable Development Study Centre, Government College University, Lahore 54000, Pakistan
| | - Mahnoor Iftikhar
- Sustainable Development Study Centre, Government College University, Lahore 54000, Pakistan
| | - Hira Saif
- Sustainable Development Study Centre, Government College University, Lahore 54000, Pakistan
| | - Ajwa Tahir
- Sustainable Development Study Centre, Government College University, Lahore 54000, Pakistan
| | - Malik Ashir Murtaza
- Sustainable Development Study Centre, Government College University, Lahore 54000, Pakistan
| | - Muhammad Fahim Khokhar
- Institute of Environmental Sciences and Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mortaza Aghbashlo
- Department of Mechanical Engineering of Agricultural Machinery, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Meisam Tabatabaei
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Henan Province Forest Resources Sustainable Development and High-value Utilization Engineering Research Center, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China; Biofuel Research Team (BRTeam), Terengganu, Malaysia; Microbial Biotechnology Department, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education, and Extension Organization (AREEO), Karaj, Iran
| | - Abdul-Sattar Nizami
- Sustainable Development Study Centre, Government College University, Lahore 54000, Pakistan.
| |
Collapse
|
21
|
Asam ZUZ, O'Driscoll C, Abbas M, O'Connor M, Waqas M, Rehan M, Nizami AS, Xiao L. Mechanism and role of seeded native grasses to immobilize nitrogen on harvested blanket peat forests for protection of water courses. Environ Sci Pollut Res Int 2021; 28:24756-24770. [PMID: 33156503 DOI: 10.1007/s11356-020-11433-4] [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: 04/20/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
Forest harvesting activities on peatlands have long been associated with nutrient leaching and deterioration of downstream water quality. This study aims to assess the effect of grass seeding practice on harvested blanket peatlands to immobilize N and reduce its export to water courses. First, a plot-scale field experiment was conducted by seeding with two grass species (Holcus lanatus and Agrostis capillaris) to study the N uptake potential from a harvested area. Secondly, a simulated rainfall experiment was conducted to study the effect of these grasses on reducing N leaching from surface peat using laboratory flume approach. In the end, the role of seeded grasses in removing N from nutrient-rich throughflow water was assessed using simulated overland flow experiment. The results showed that the seeded grasses had the potential to uptake over 30 kg ha-1 of N in the first year after seeding on harvested peatlands, whereas it takes over 2.5 years to establish the same level of N uptake by natural re-vegetation (non-grassed). In the simulated rainfall experiment, the inorganic N (NH4+-N and NO3--N) leaching in surface runoff from grassed flumes was 72% lower (453 mg m-2) than non-grassed flumes (1643 mg m-2). In the simulated overland flow experiment, the N retention by grassed flumes was significantly higher (98%) as compared to non-grassed flumes (70%) in the simulated overland flow experiment. Comparatively higher concentrations of NH4+-N and NO3--N in soil porewaters of non-grassed flumes suggest that this N retention by non-grassed flumes is less sustainable and is likely to be leached in runoff in subsequent flow events. The results from all three experiments in this study suggest that seeded grasses are a major sink of N on harvested blanket peatland forests. Immobilization of N onsite using the grass seeding and mini-buffer practice could be an efficient and a feasible mean of reducing N export from harvested blanket peatland forests in order to protect the sensitive water courses. However, the sustainability of retention and immobilization of N by grasses needs to be studied further in long-term field-scale experiments on multiple peatland sites.
Collapse
Affiliation(s)
- Zaki-Ul-Zaman Asam
- Department of Environmental Sciences, University of Gujrat, Gujrat, Pakistan.
- Civil Engineering, National University of Ireland, Galway, Ireland.
| | - Connie O'Driscoll
- Civil Engineering, National University of Ireland, Galway, Ireland
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin, Ireland
| | - Mohsin Abbas
- Department of Environmental Sciences, University of Gujrat, Gujrat, Pakistan
| | - Mark O'Connor
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin, Ireland
| | - Muhammad Waqas
- Department of Environmental Sciences, Kohat University of Science and Technology, Kohat, Pakistan
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Abdul-Sattar Nizami
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan.
| | - Liwen Xiao
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin, Ireland
| |
Collapse
|
22
|
Rehan M, Kurundkar D, Kurundkar AR, Logsdon NJ, Smith SR, Chanda D, Bernard K, Sanders YY, Deshane JS, Dsouza KG, Rangarajan S, Zmijewski JW, Thannickal VJ. Restoration of SIRT3 gene expression by airway delivery resolves age-associated persistent lung fibrosis in mice. ACTA ACUST UNITED AC 2021; 1:205-217. [PMID: 34386777 PMCID: PMC8357317 DOI: 10.1038/s43587-021-00027-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aging is a risk factor for progressive fibrotic disorders involving diverse organ systems, including the lung. Idiopathic pulmonary fibrosis, an age-associated degenerative lung disorder, is characterized by persistence of apoptosis-resistant myofibroblasts. In this report, we demonstrate that sirtuin-3 (SIRT3), a mitochondrial deacetylase, is downregulated in lungs of IPF human subjects and in mice subjected to lung injury. Over-expression of the SIRT3 cDNA via airway delivery restored capacity for fibrosis resolution in aged mice, in association with activation of the forkhead box transcription factor, FoxO3a, in fibroblasts, upregulation of pro-apoptotic members of the Bcl-2 family, and recovery of apoptosis susceptibility. While transforming growth factor-β1 reduced levels of SIRT3 and FoxO3a in lung fibroblasts, cell non-autonomous effects involving macrophage secreted products were necessary for SIRT3-mediated activation of FoxO3a. Together, these findings reveal a novel role of SIRT3 in pro-resolution macrophage functions that restore susceptibility to apoptosis in fibroblasts via a FoxO3a-dependent mechanism.
Collapse
Affiliation(s)
- Mohammad Rehan
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Deepali Kurundkar
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Ashish R Kurundkar
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Naomi J Logsdon
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Samuel R Smith
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Diptiman Chanda
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Karen Bernard
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Yan Y Sanders
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jessy S Deshane
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Kevin G Dsouza
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Sunad Rangarajan
- Division of Pulmonary Sciences and Critical Care, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jaroslaw W Zmijewski
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Victor J Thannickal
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| |
Collapse
|
23
|
Munir M, Ahmad M, Rehan M, Saeed M, Lam SS, Nizami AS, Waseem A, Sultana S, Zafar M. Production of high quality biodiesel from novel non-edible Raphnus raphanistrum L. seed oil using copper modified montmorillonite clay catalyst. Environ Res 2021; 193:110398. [PMID: 33127396 DOI: 10.1016/j.envres.2020.110398] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 09/03/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
This study focused on producing high quality and yield of biodiesel from novel non-edible seed oil of abundantly available wild Raphnus raphanistrum L. using an efficient, recyclable and eco-friendly copper modified montmorillonite (MMT) clay catalyst. The maximum biodiesel yield of 83% was obtained by base catalyzed transesterification process under optimum operating conditions of methanol to oil ratio of 15:1, reaction temperature of 150 °C, reaction time of 5 h and catalyst loading of 3.5%. The synthesized catalyst and biodiesel were characterized for their structural features and chemical compositions using various state-of-the-art techniques, including x-ray diffraction, scanning electron microscopy, energy dispersive x-ray spectroscopy, Fourier transform infrared spectroscopy, nuclear magnetic resonance (1H, 13C) and gas chromatography-mass spectroscopy. The fuel properties of the biodiesel were estimated including kinematic viscosity (4.36 cSt), density (0.8312 kg/L), flash point (72 °C), acid value (0.172 mgKOH/g) and sulphur content (0.0002 wt.%). These properties were compared and found in good agreement with the International Biodiesel Standards of American (ASTM-951, 6751), European Committee (EN-14214) and China GB/T 20828 (2007). The catalyst was re-used in five consecutive transesterification reactions without losing much catalytic efficiency. Overall, non-edible Raphnus raphanistrum L.. seed oil and Cu doped MMT clay catalyst appeared to be highly active, stable, and cheap contenders for future biofuel industry. However, detailed life cycle assessment (LCA) studies of Raphnus raphanistrum L. seed oil biodiesel are highly recommended to assess the technical, ecological, social and economic challenges.
Collapse
Affiliation(s)
- M Munir
- Biodiesel Lab, Department of Plant Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - M Ahmad
- Biodiesel Lab, Department of Plant Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan; Pakistan Academy of Sciences, Pakistan.
| | - M Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia.
| | - M Saeed
- Analytical Lab, Department of Chemistry, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - Su Shiung Lam
- Pyrolysis Technology Research Group, Institute of Tropical Aquaculture and Fisheries (Akuatrop), Universiti Malaysia Terengganu, 21030, Kuala Terengganu, Terengganu, Malaysia.
| | - A S Nizami
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - A Waseem
- Pakistan Academy of Sciences, Pakistan
| | - S Sultana
- Biodiesel Lab, Department of Plant Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| | - M Zafar
- Biodiesel Lab, Department of Plant Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan
| |
Collapse
|
24
|
Busby T, Chen Y, Godfrey TC, Rehan M, Wildman BJ, Smith CM, Hassan Q. Baf45a Mediated Chromatin Remodeling Promotes Transcriptional Activation for Osteogenesis and Odontogenesis. Front Endocrinol (Lausanne) 2021; 12:763392. [PMID: 35046892 PMCID: PMC8762305 DOI: 10.3389/fendo.2021.763392] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 12/06/2021] [Indexed: 11/13/2022] Open
Abstract
Chromatin remodeling, specifically the tissue-specific regulation in mineralized tissues, is an understudied avenue of gene regulation. Here we show that Baf45a and Baf45d, two Baf45 homologs belong to ATPase-dependent SWI/SNF chromatin remodeling complex, preferentially expressed in osteoblasts and odontoblasts compared to Baf45b and Baf45c. Recently, biochemical studies revealed that BAF45A associates with Polybromo-associated BAF (PBAF) complex. However, the BAF45D subunit belongs to the polymorphic canonical BRG1-associated factor (cBAF) complex. Protein profiles of osteoblast and odontoblast differentiation uncovered a significant increase of BAF45A and PBAF subunits during early osteoblast and odontoblast maturation. Chromatin immunoprecipitation sequencing (ChIP-seq) during the bone marrow stromal cells (BMSCs) differentiation showed higher histone H3K9 and H3K27 acetylation modifications in the promoter of Baf45a and Baf45d and increased binding of bone and tooth specific transcription factor RUNX2. Overexpression of Baf45a in osteoblasts activates genes essential for the progression of osteoblast maturation and mineralization. Furthermore, shRNA-mediated knockdown of Baf45a in odontoblasts leads to markedly altered genes responsible for the proliferation, apoptosis, DNA repair, and modest decrease in dentinogenic marker gene expression. Assay for Transposase-Accessible Chromatin sequencing (ATAC-seq) assay in Baf45a knockout osteoblasts revealed a noticeable reduction in chromatin accessibility of osteoblast and odontoblast specific genes, along with transcription factor Atf4 and Klf4. Craniofacial mesenchyme-specific loss of Baf45a modestly reduced the mineralization of the tooth and mandibular bone. These findings indicated that BAF45A-dependent mineralized tissue-specific chromatin remodeling through PBAF-RUNX2 crosstalk results in transcriptional activation is critical for early differentiation and matrix maturation of mineralized tissues.
Collapse
|
25
|
Kumar K, Rehan M, Flegel J, Heitkamp F, Pergomet JL, Otte F, Strohmann C. Asymmetric Synthesis of 3,3′-Piperidinoyl Spirooxindoles and Discovery of Stereospecific Cycloadducts as Novel Hedgehog Pathway Modulators. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An enantioselective hetero-Diels–Alder reaction of alkylidene oxindoles and 2-aza-3-silyloxy-1,3-butadienes, catalyzed by divalent transition metal complexes with N,N′-dioxide ligands offered an efficient access to natural-product-based 3,3′-piperidinoyl spirooxindole class of small molecules. exo-Cycloadducts formed via stereospecific cycloaddition with Z-olefin displayed potent activity in modulation of hedgehog pathway.
Collapse
Affiliation(s)
- Kamal Kumar
- Max-Planck-Institute für Molekulare Physiologie, Abteilung Chemische Biologie
| | - Mohammad Rehan
- Max-Planck-Institute für Molekulare Physiologie, Abteilung Chemische Biologie
| | - Jana Flegel
- Max-Planck-Institute für Molekulare Physiologie, Abteilung Chemische Biologie
- Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund
| | - Franziska Heitkamp
- Max-Planck-Institute für Molekulare Physiologie, Abteilung Chemische Biologie
- Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund
| | | | - Felix Otte
- Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund
| | - Carsten Strohmann
- Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund
| |
Collapse
|
26
|
Khan N, Khan MD, Sabir S, Nizami AS, Anwer AH, Rehan M, ZainKhan M. Deciphering the effects of temperature on bio-methane generation through anaerobic digestion. Environ Sci Pollut Res Int 2020; 27:29766-29777. [PMID: 31873899 DOI: 10.1007/s11356-019-07245-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 12/02/2019] [Indexed: 06/10/2023]
Abstract
Anaerobic digestion (AD) is a sustainable wastewater treatment technology which facilitates energy, nutrient, and water recovery from organic wastes. The agricultural and industrial wastes are suitable substrates for the AD, as they contain a high level of biodegradable compounds. The aim of this study was to examine the AD of three different concentrations of phenol (100, 200, and 300 mg/L) containing wastewater with and without co-substrate (acetate) at four different temperatures (25, 35, 45, and 55 °C) to produce methane (CH4)-enriched biogas. It was observed that the chemical oxygen demand (COD) and phenol removal efficiencies of up to 76% and 72%, respectively, were achieved. The CH4 generation was found higher in anaerobic batch reactors (ABRs) using acetate as co-substrate, with the highest yield of 189.1 μL CH4 from 500 μL sample injected, obtained using 200 mg/L of phenol at 35 °C. The results revealed that the performance of ABR in terms of degradation efficiency, COD removal, and biogas generation was highest at 35 °C followed by 55, 45, and 25 °C indicating 35 °C to be the optimum temperature for AD of phenolic wastewater with maximum energy recovery. Scanning electron microscopy (SEM) revealed that the morphology of the anaerobic sludge depends greatly on the temperature at which the system is maintained which in turn affects the performance and degradation of toxic contaminants like phenol. It was observed that the anaerobic sludge maintained at 35 °C showed uniform channels leading to higher permeability through enhanced mass transfer to achieve higher degradation rates. However, the denser sludge as in the case of 55 °C showed lesser permeability leading to limited transfer and thus reduced treatment. Quantitative real-time PCR (qPCR) analysis revealed a more noteworthy change in the population of the microbial communities due to temperature than the presence of phenol with the methanogens being the dominating species at 35 °C. The findings suggest that the planned operation of the ABR could be a promising choice for CH4-enriched biogas and COD removal from phenolic wastewater.
Collapse
Affiliation(s)
- Nishat Khan
- Department of Chemistry, Environmental Research Laboratory, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India
| | - Mohammad Danish Khan
- Department of Chemistry, Environmental Research Laboratory, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India
| | - Suhail Sabir
- Department of Chemistry, Environmental Research Laboratory, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India
| | - Abdul-Sattar Nizami
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan.
| | - Abdul Hakeem Anwer
- Department of Chemistry, Environmental Research Laboratory, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammad ZainKhan
- Department of Chemistry, Environmental Research Laboratory, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India.
| |
Collapse
|
27
|
Anwar MN, Fayyaz A, Sohail NF, Khokhar MF, Baqar M, Yasar A, Rasool K, Nazir A, Raja MUF, Rehan M, Aghbashlo M, Tabatabaei M, Nizami AS. CO 2 utilization: Turning greenhouse gas into fuels and valuable products. J Environ Manage 2020; 260:110059. [PMID: 32090808 DOI: 10.1016/j.jenvman.2019.110059] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 12/23/2019] [Accepted: 12/31/2019] [Indexed: 05/08/2023]
Abstract
This study critically reviews the recent developments and future opportunities pertinent to the conversion of CO2 as a potent greenhouse gas (GHG) to fuels and valuable products. CO2 emissions have reached an alarming level of around 410 ppm and have become the primary driver of global warming and climate change leading to devastating events such as droughts, hurricanes, torrential rains, floods, tornados and wildfires across the world. These events are responsible for thousands of deaths and have adversely affected the economic development of many countries, loss of billions of dollars, across the globe. One of the promising choices to tackle this issue is carbon sequestration by pre- and post-combustion processes and oxyfuel combustion. The captured CO2 can be converted into fuels and valuable products, including methanol, dimethyl ether (DME), and methane (CH4). The efficient use of the sequestered CO2 for the desalinization might be critical in overcoming water scarcity and energy issues in developing countries. Using the sequestered CO2 to produce algae in combination with wastewater, and producing biofuels is among the promising strategies. Many methods, like direct combustion, fermentation, transesterification, pyrolysis, anaerobic digestion (AD), and gasification, can be used for the conversion of algae into biofuel. Direct air capturing (DAC) is another productive technique for absorbing CO2 from the atmosphere and converting it into various useful energy resources like CH4. These methods can effectively tackle the issues of climate change, water security, and energy crises. However, future research is required to make these conversion methods cost-effective and commercially applicable.
Collapse
Affiliation(s)
- M N Anwar
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan.
| | - A Fayyaz
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - N F Sohail
- Institute of Environmental Sciences and Engineering, National University of Sciences and Technology Islamabad, Pakistan
| | - M F Khokhar
- Institute of Environmental Sciences and Engineering, National University of Sciences and Technology Islamabad, Pakistan
| | - M Baqar
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - A Yasar
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - K Rasool
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University, Qatar Foundation, P.O. Box 5825, Doha, Qatar
| | - A Nazir
- Department of Environmental Science and Policy, Lahore School of Economics, Lahore, Pakistan
| | - M U F Raja
- Institute of Environmental Sciences and Engineering, National University of Sciences and Technology Islamabad, Pakistan
| | - M Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Aghbashlo
- Department of Mechanical Engineering of Agricultural Machinery, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - M Tabatabaei
- Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA (UiTM), 40450, Shah Alam, Selangor, Malaysia; Biofuel Research Team (BRTeam), Karaj, Iran; Microbial Biotechnology Department, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education, and Extension Organization (AREEO), Karaj, Iran; Faculty of Mechanical Engineering, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam
| | - A S Nizami
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| |
Collapse
|
28
|
Kashif M, Awan MB, Nawaz S, Amjad M, Talib B, Farooq M, Nizami AS, Rehan M. Untapped renewable energy potential of crop residues in Pakistan: Challenges and future directions. J Environ Manage 2020; 256:109924. [PMID: 31818740 DOI: 10.1016/j.jenvman.2019.109924] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 11/04/2019] [Accepted: 11/24/2019] [Indexed: 06/10/2023]
Abstract
Sustainability in power generation mainly depends on the transition from fossils to sustainable energy resources. Biomass from the crop residue has huge potential for renewable power generation, but it is still not utilized to its full potential. This study presents a comprehensive methodology to evaluate and forecast the current and future availability of selective crop residue to generate renewable energy. A forecast model incorporating historical trends in the crop yield has been developed in MATLAB and implemented for crop residue based biomass resource assessment of five primary crops (wheat straw, rice husk, rice straw, cotton straw, corn stover, and bagasse) in order to estimate the energy generation potential for Pakistan from 2018 till 2035. It was found that about 40 million tonnes of crop residue was available in Pakistan for power generation in the year 2018 considering a residue removal (availability) factor of 50%. This translates to an estimated potential of about 11,000 MW of electricity generation capacity using crop residue derived biomass for 2018. This capacity is predicted to gradually increase up to 16,000 MW by the year 2035 based on the trends in the growth of crop production since 2001. The suitability of a potential region for the installation of 100 MW biomass-fired power plants was also assessed by calculating crop residue density and an equivalent collection radius (Re) of 50 km (km). Punjab province of Pakistan, being an agricultural province, with relatively better road infrastructure can sustain crop residue based power plants of up to 7000 MW cumulative capacity at various locations. The challenges, such as economic, logistics, regulatory and political barriers, in generating renewable energy from biomass along with their potential solutions were also discussed. The study also provides a baseline for future research to evaluate and forecast the growth in bio-power generation potential of any biomass resource in a region based on crop yield and area of the region.
Collapse
Affiliation(s)
- M Kashif
- Department of Mechanical Engineering, University of Central Punjab, Johar Town, Lahore, Pakistan.
| | - M B Awan
- Department of Mechanical Engineering, University of Central Punjab, Johar Town, Lahore, Pakistan
| | - S Nawaz
- Department of Mechanical, Mechatronics and Manufacturing Engineering, University of Engineering and Technology Lahore (KSK Campus), Pakistan
| | - M Amjad
- Department of Mechanical, Mechatronics and Manufacturing Engineering, University of Engineering and Technology Lahore (KSK Campus), Pakistan.
| | - B Talib
- Department of Civil Technology, University of Lahore, Pakistan
| | - M Farooq
- Department of Mechanical, Mechatronics and Manufacturing Engineering, University of Engineering and Technology Lahore (KSK Campus), Pakistan
| | - A S Nizami
- Sustainable Development Study Center, Government College University, Lahore, Pakistan
| | - M Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
29
|
Yasir M, Qureshi AK, Srinivasan S, Ullah R, Bibi F, Rehan M, Khan SB, Azhar EI. Domination of Filamentous Anoxygenic Phototrophic Bacteria and Prediction of Metabolic Pathways in Microbial Mats from the Hot Springs of Al Aridhah. Folia Biol (Praha) 2020; 66:24-35. [PMID: 32512656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Microbial mats in hot springs form a dynamic ecosystem and support the growth of diverse communities with broad-ranging metabolic capacity. In this study, we used 16S rRNA gene amplicon sequencing to analyse microbial communities in mat samples from two hot springs in Al Aridhah, Saudi Arabia. Putative metabolic pathways of the microbial communities were identified using phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt). Filamentous anoxygenic phototrophic bacteria associated with phylum Chloroflexi were abundant (> 50 %) in both hot springs at 48 °C. Chloroflexi were mainly represented by taxa Chloroflexus followed by Roseiflexus. Cyanobacteria of genus Arthrospira constituted 3.4 % of microbial mats. Heterotrophic microorganisms were mainly represented by Proteobacteria, Actinobacteria, Bacteroidetes, and Firmicutes. Archaea were detected at a lower relative abundance (< 1 %). Metabolic pathways associated with membrane transport, carbon fixation, methane metabolism, amino acid biosynthesis, and degradation of aromatic compounds were commonly found in microbial mats of both hot springs. In addition, pathways for production of secondary metabolites and antimicrobial compounds were predicted to be present in microbial mats. In conclusion, microbial communities in the hot springs of Al Aridhah were composed of diverse bacteria, with taxa of Chloroflexus being dominant.
Collapse
Affiliation(s)
- M Yasir
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Medical Laboratory Technology Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - A K Qureshi
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - S Srinivasan
- Institute of Bioinformatics and Applied Biotechnology, Bangalore, Karnataka-560100, India
| | - R Ullah
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - F Bibi
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Medical Laboratory Technology Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Rehan
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Medical Laboratory Technology Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - S B Khan
- Department of Chemistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - E I Azhar
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Medical Laboratory Technology Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
30
|
Alghazo J, Ouda O, Alanezi F, Asam ZUZ, Rehan M, Salameh MH, Nizami AS. Potential of electronic waste recycling in Gulf Cooperation Council states: an environmental and economic analysis. Environ Sci Pollut Res Int 2019; 26:35610-35619. [PMID: 30937746 DOI: 10.1007/s11356-019-04956-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 01/17/2019] [Accepted: 03/22/2019] [Indexed: 06/09/2023]
Abstract
This paper for the first time aims to valorize the environmental and economic values of electronic waste recycling for member states of the Gulf Cooperation Council (GCC) from the year 2018 up to 2040. GCC countries have a unique situation due to the significant economic growth with the resulting urbanization and population growth accompanied by high standards of living that in turn increase all types of waste. A direct link among the living standards and quantity of electronic waste production is observed in the GCC states. The annual growth of electronic waste in GCC is 3-5% while the current estimated electronic waste generation exceeds 52.2 million metric tonnes (Mt). In 2018, GCC states generated 857 kilotonnes (kt) electronic waste that would be 1.094 Mt by 2040. KSA, among the GCC states, generated the highest amount of electronic waste (533 kt) in 2018 that would be 675 kt by 2040. GCC countries are on the right track of developing policies and regulations for managing electronic waste. However, more efforts are required to ensure the implementation of these regulations. The findings of this study would be a base for the future studies in the electronic waste sector in the GCC region and a novel initiative for GCC to develop a unified free zone for the electronic waste recycling that will meet the local, regional, and international standards and regulations. This unified GCC initiative has substantial economic and environmental benefits for the region.
Collapse
Affiliation(s)
- Jaafar Alghazo
- Department of Computer Engineering, Prince Mohammad Bin Fahd University, Al khobar, Saudi Arabia
| | - Omar Ouda
- National Center for Water Research and Studies, Ministry of Environment, Water and Agriculture, Riyadh, Saudi Arabia
| | - Faisal Alanezi
- Department of Management Information Systems, Prince Mohammad Bin Fahd University, Al khobar, Saudi Arabia
| | - Zaki-Ul-Zaman Asam
- Department of Environmental Sciences, University of Gujrat, Gujrat, Pakistan
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Abdul-Sattar Nizami
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia.
| |
Collapse
|
31
|
Anwer AH, Khan MD, Khan N, Nizami AS, Rehan M, Khan MZ. Development of novel MnO 2 coated carbon felt cathode for microbial electroreduction of CO 2 to biofuels. J Environ Manage 2019; 249:109376. [PMID: 31437708 DOI: 10.1016/j.jenvman.2019.109376] [Citation(s) in RCA: 10] [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: 03/20/2019] [Revised: 07/29/2019] [Accepted: 08/05/2019] [Indexed: 06/10/2023]
Abstract
Fabrication of superior and cost-effective cathodic materials is vital in manufacturing sustainable microbial electrolysis cells (MECs) for biofuels production. In the present study, a novel manganese dioxide (MnO2) coated felt cathode (Mn/CF) has been developed for MECs using electrodeposition method via potentiostat. MnO2 is considered to encourage exogenous electron exchange and, in this way, improves the reduction of carbon dioxide (CO2). MnO2, as a cathodic catalyst, enhances the rate of biofuel production, electron transfer, and significantly reduces the cost of MECs. A maximum stabilized current density of 3.70 ± 0.5 mA/m2 was obtained in case of MnO2-coated Mn/CF based MEC, which was more than double the non-coated carbon felt (CF) cathode (1.70 ± 0.5 mA/m2). The dual chamber Mn/CF-MEC achieved the highest production rate of acetic acid (37.9 mmol/L) that was significantly higher (43.0%) in comparison to the non-coated CF-MEC. The cyclic voltammograms further verified the substantial enhancement in the electron transfer between the MnO2 coated cathode and microbes. The obtained results demonstrate that MnO2 interacted electrochemically with microbial cells and enhanced the extracellular electron transfer, therefore validating its potential role in biofuel production. The MnO2 coated CF further offered higher electrode surface area and better electron transfer efficiency, suggesting its applicability in the large-scale MECs.
Collapse
Affiliation(s)
- A H Anwer
- Environmental Research Laboratory, Department of Chemistry, Faculty of Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - M D Khan
- Environmental Research Laboratory, Department of Chemistry, Faculty of Sciences, Aligarh Muslim University, Aligarh, 202002, India; School of Engineering and Advanced Materials, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - N Khan
- Environmental Research Laboratory, Department of Chemistry, Faculty of Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - A S Nizami
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia.
| | - M Rehan
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Z Khan
- Environmental Research Laboratory, Department of Chemistry, Faculty of Sciences, Aligarh Muslim University, Aligarh, 202002, India.
| |
Collapse
|
32
|
Gardy J, Rehan M, Hassanpour A, Lai X, Nizami AS. Advances in nano-catalysts based biodiesel production from non-food feedstocks. J Environ Manage 2019; 249:109316. [PMID: 31472308 DOI: 10.1016/j.jenvman.2019.109316] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 07/21/2019] [Accepted: 07/25/2019] [Indexed: 05/17/2023]
Abstract
This paper aims to examine the influence of various catalysts on biodiesel production, especially from non-food feedstocks with an ambition to optimize the catalytic biodiesel production. Homogenous acid catalysts are mainly used in biodiesel production, but they cannot be recovered and demand costly fuel purification as being corrosive. Similarly, enzyme catalysts are expensive in industrial-scale production of biodiesel. However, heterogeneous catalysts simplify the easy separation of product and by-products from the catalyst along with catalyst reusability and reduction of waste. Solid acid and base catalysts offer more advantages due to their non-toxicity, high surface area, reusability, higher stability, and the simplicity of purification. Solid base catalysts yield better activity than solid acid catalysts, however, they cannot esterify large amounts of free fatty acids (FFAs) in non-food feedstocks. The solid acid catalysts have the added advantages of being more tolerant to high amounts of FFAs and being able to simultaneously esterify FFAs and transesterify triglycerides in cheap feedstocks like waste cooking oil. Recently, an array of inorganic, organic and polymeric solid acid and nanomaterial-based catalysts have been developed using cheap feedstocks. However, the issues of low reactivity, small pore sizes, low stabilities, long reaction times, and high reaction temperatures still need to be solved. The developments of producing efficient, cheap, durable, and stable solid acid and nanomaterial-based catalysts have been critically reviewed in this study. Furthermore, the challenges and future perspectives of production of biodiesel and its industry growth have also been discussed.
Collapse
Affiliation(s)
- Jabbar Gardy
- School of Chemical and Process Engineering, Faculty of Engineering and Physical Sciences, University of Leeds, Leeds, LS2 9JT, UK.
| | - Mohammad Rehan
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Ali Hassanpour
- School of Chemical and Process Engineering, Faculty of Engineering and Physical Sciences, University of Leeds, Leeds, LS2 9JT, UK.
| | - Xiaojun Lai
- School of Chemical and Process Engineering, Faculty of Engineering and Physical Sciences, University of Leeds, Leeds, LS2 9JT, UK.
| | - Abdul-Sattar Nizami
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia.
| |
Collapse
|
33
|
Affiliation(s)
- Umer Rashid
- Fellow Researcher Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Abdul-Sattar Nizami
- Head of Solid Waste Research Unit and Associate Editor for Renewable & Sustainable Energy Reviews (Elsevier), Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah 80216, Saudi Arabia
| | - Mohammad Rehan
- Assistant Professor and Associate Editor for Frontiers in Energy Research, Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah 80216, Saudi Arabia
| |
Collapse
|
34
|
Abstract
Purpose of Review- Precise and temporal expression of Runx2 and its regulatory transcriptional network is a key determinant for the intricate cellular and developmental processes in adult bone tissue formation. This review analyzes how microRNA functions to regulate this network, and how dysregulation results in bone disorders. Recent Findings- Similar to other biologic processes, microRNA (miRNA/miR) regulation is undeniably indispensable to bone synthesis and maintenance. There exists a miRNA-RUNX2 network where RUNX2 regulates the transcription of miRs, or is post transcriptionally regulated by a class of miRs, forming a variety of miR-RUNX2 regulatory pathways which regulate osteogenesis. Summary- The current review provides insights to understand transcriptional-post transcriptional regulatory network governed by Runx2 and osteogenic miRs, and is based largely from in vitro and in vivo studies. When taken together, this article discusses a new regulatory layer of bone tissue specific gene expression by RUNX2 influenced via miRNA.
Collapse
Affiliation(s)
- Benjamin J Wildman
- RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama, Birmingham AL, 35294
| | - Tanner C Godfrey
- RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama, Birmingham AL, 35294
| | - Mohammad Rehan
- RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama, Birmingham AL, 35294
| | - Yuechuan Chen
- RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama, Birmingham AL, 35294
| | - Lubana H Afreen
- RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama, Birmingham AL, 35294
| | - Quamarul Hassan
- RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama, Birmingham AL, 35294
| |
Collapse
|
35
|
Pant D, Misra S, Nizami AS, Rehan M, van Leeuwen R, Tabacchioni S, Goel R, Sarma P, Bakker R, Sharma N, Kwant K, Diels L, Elst K. Towards the development of a biobased economy in Europe and India. Crit Rev Biotechnol 2019; 39:779-799. [PMID: 31137977 DOI: 10.1080/07388551.2019.1618787] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
India has emerged as a key player with a high potential to develop a biomass and biobased economy due to its large geographic size and the massive amounts of agricultural and non agricultural biomass produced. India has joined hands with Europe to synchronize its efforts to create and facilitate the development of a biobased economy in this country. This paper aims to examine common research and development actions between the European Union (EU) and India to facilitate the development of these biobased economies. As a base, a thorough study has been performed considering the biomass potential and current status of the bioeconomy in both the EU and India based on the distillation of a series of 80 potential recommendations. The recommendations were grouped into four major categories: (1) biomass production, (2) by-products/waste, (3) biorefineries and (4) policy, market, and value-added products. A questionnaire was designed and distributed to key stakeholders belonging to: academia, industry, and policymakers in both India and the EU. A total of 231 responses were received and analyzed, based on the key recommendations made for the essential research and development topics that are of prime importance to develop biobased economies in both the EU and India. The findings of this study suggest recognizing the value-added contributions made by biobased products such as: food, feed, valuable materials and chemicals in both regions. It is important to reduce the overall process costs and minimize the environmental impacts of such a biobased economy.
Collapse
Affiliation(s)
- Deepak Pant
- a Separation and Conversion Technology, Flemish Institute for Technological Research (VITO) , Mol , Belgium
| | - Shilpi Misra
- a Separation and Conversion Technology, Flemish Institute for Technological Research (VITO) , Mol , Belgium
| | - Abdul-Sattar Nizami
- b Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University , Jeddah , Saudi Arabia
| | - Mohammad Rehan
- b Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University , Jeddah , Saudi Arabia
| | - Rebecca van Leeuwen
- c Netherlands Enterprise Agency, Rijksdienst voor Ondernemend Nederland , Roermond , The Netherlands
| | - Silvia Tabacchioni
- d Department of Sustainable Territorial and Production Systems , Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) , Rome , Italy
| | - Reeta Goel
- e Department of Microbiology , College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology , Pantnagar , India
| | - Priyangshu Sarma
- f The Energy and Resources Institute, India Habitat Centre , New Delhi , India
| | - Rob Bakker
- g Wageningen UR Food & Biobased Research , Wageningen , The Netherlands
| | - Neeta Sharma
- d Department of Sustainable Territorial and Production Systems , Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) , Rome , Italy
| | - Kees Kwant
- h Netherlands Enterprise Agency, Rijksdienst voor Ondernemend Nederland , Utrecht , The Netherlands
| | - Ludo Diels
- a Separation and Conversion Technology, Flemish Institute for Technological Research (VITO) , Mol , Belgium
| | - Kathy Elst
- a Separation and Conversion Technology, Flemish Institute for Technological Research (VITO) , Mol , Belgium
| |
Collapse
|
36
|
Anwar MN, Fayyaz A, Sohail NF, Khokhar MF, Baqar M, Khan WD, Rasool K, Rehan M, Nizami AS. CO 2 capture and storage: A way forward for sustainable environment. J Environ Manage 2018; 226:131-144. [PMID: 30114572 DOI: 10.1016/j.jenvman.2018.08.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 07/19/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
The quest for a sustainable environment and combating global warming, carbon capture, and storage (CCS) has become the primary resort. A complete shift from non-renewable resources to renewable resources is currently impossible due to its major share in energy generation; making CCS an imperative need of the time. This study, therefore, aims to examine the reckoning of carbon dioxide (CO2), measurement methods, and its efficient capture and storage technologies with an ambition to combat global warming and achieve environmental sustainability. Conventionally, physical, geological and biological proxies are used to measure CO2. The recent methods for CO2 analyses are spectrometry, electrochemical gas sensors, and gas chromatography. Various procedures such as pre, post, and oxyfuel combustion, and use of algae, biochar, and charcoal are the promising ways for CO2 sequestration. However, the efficient implementation of CCS lies in the application of nanotechnology that, in the future, could provide a better condition for the environment and economic outlooks. The captured carbon can be stored in the earth crust for trillions of years, but its leakage during storage can raise many issues including its emissions in the atmosphere and soil acidification. Therefore, global and collective efforts are required to explore, optimize and implement new techniques for CCS to achieve high environmental sustainability and combat the issues of global warming.
Collapse
Affiliation(s)
- M N Anwar
- Sustainable Development Study Center, Government College University, Lahore, Pakistan.
| | - A Fayyaz
- Sustainable Development Study Center, Government College University, Lahore, Pakistan
| | - N F Sohail
- Sustainable Development Study Center, Government College University, Lahore, Pakistan
| | - M F Khokhar
- Institute of Environmental Sciences and Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - M Baqar
- Sustainable Development Study Center, Government College University, Lahore, Pakistan
| | - W D Khan
- Sustainable Development Study Center, Government College University, Lahore, Pakistan
| | - K Rasool
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University, Qatar Foundation, P.O. Box 5825, Doha, Qatar
| | - M Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - A S Nizami
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
37
|
Abou-Okeil A, Rehan M, El-Sawy S, El-bisi M, Ahmed-Farid O, Abdel-Mohdy F. Lidocaine/β-cyclodextrin inclusion complex as drug delivery system. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.09.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
38
|
Godfrey TC, Wildman BJ, Beloti MM, Kemper AG, Ferraz EP, Roy B, Rehan M, Afreen LH, Kim E, Lengner CJ, Hassan Q. The microRNA-23a cluster regulates the developmental HoxA cluster function during osteoblast differentiation. J Biol Chem 2018; 293:17646-17660. [PMID: 30242124 DOI: 10.1074/jbc.ra118.003052] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [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: 04/03/2018] [Revised: 08/22/2018] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRs) and Hox transcription factors have decisive roles in postnatal bone formation and homeostasis. In silico analysis identified extensive interaction between HOXA cluster mRNA and microRNAs from the miR-23a cluster. However, Hox regulation by the miR-23a cluster during osteoblast differentiation remains undefined. We examined this regulation in preosteoblasts and in a novel miR-23a cluster knockdown mouse model. Overexpression and knockdown of the miR-23a cluster in preosteoblasts decreased and increased, respectively, the expression of the proteins HOXA5, HOXA10, and HOXA11; these proteins' mRNAs exhibited significant binding with the miR-23a cluster miRNAs, and miRNA 3'-UTR reporter assays confirmed repression. Importantly, during periods correlating with development and differentiation of bone cells, we found an inverse pattern of expression between HoxA factors and members of the miR-23a cluster. HOXA5 and HOXA11 bound to bone-specific promoters, physically interacted with transcription factor RUNX2, and regulated bone-specific genes. Depletion of HOXA5 or HOXA11 in preosteoblasts also decreased cellular differentiation. Additionally, stable overexpression of the miR-23a cluster in osteoblasts decreased the recruitment of HOXA5 and HOXA11 to osteoblast gene promoters, significantly inhibiting histone H3 acetylation. Heterozygous miR-23a cluster knockdown female mice (miR-23a ClWT/ZIP) had significantly increased trabecular bone mass when compared with WT mice. Furthermore, miR-23a cluster knockdown in calvarial osteoblasts of these mice increased the recruitment of HOXA5 and HOXA11, with a substantial enrichment of promoter histone H3 acetylation. Taken together, these findings demonstrate that the miR-23a cluster is required for maintaining stage-specific HoxA factor expression during osteogenesis.
Collapse
Affiliation(s)
- Tanner C Godfrey
- From the RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama Birmingham, Birmingham, Alabama 35294
| | - Benjamin J Wildman
- From the RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama Birmingham, Birmingham, Alabama 35294
| | - Marcio M Beloti
- the School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP 14040-904, Brazil, and
| | - Austin G Kemper
- From the RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama Birmingham, Birmingham, Alabama 35294
| | - Emanuela P Ferraz
- the School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP 14040-904, Brazil, and
| | - Bhaskar Roy
- From the RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama Birmingham, Birmingham, Alabama 35294
| | - Mohammad Rehan
- From the RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama Birmingham, Birmingham, Alabama 35294
| | - Lubana H Afreen
- From the RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama Birmingham, Birmingham, Alabama 35294
| | - Eddy Kim
- From the RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama Birmingham, Birmingham, Alabama 35294
| | - Christopher J Lengner
- the Department of Biomedical Sciences, School of Veterinary Medicine, and Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Quamarul Hassan
- From the RNA Biology and Epigenetics Laboratory, Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Alabama Birmingham, Birmingham, Alabama 35294,
| |
Collapse
|
39
|
Rehan M, Gardy J, Demirbas A, Rashid U, Budzianowski WM, Pant D, Nizami AS. Waste to biodiesel: A preliminary assessment for Saudi Arabia. Bioresour Technol 2018; 250:17-25. [PMID: 29153646 DOI: 10.1016/j.biortech.2017.11.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 11/06/2017] [Accepted: 11/08/2017] [Indexed: 06/07/2023]
Abstract
This study presents a preliminary assessment of biodiesel production from waste sources available in the Kingdom of Saudi Arabia (KSA) for energy generation and solution for waste disposal issues. A case study was developed under three different scenarios: (S1) KSA population only in 2017, (S2) KSA population and pilgrims in 2017, and (S3) KSA population and pilgrims by 2030 using the fat fraction of the municipal solid waste. It was estimated that S1, S2, and S3 scenarios could produce around 1.08, 1.10 and 1.41 million tons of biodiesel with the energy potential of 43423, 43949 and 56493 TJ respectively. Furthermore, annual savings of US $55.89, 56.56 and 72.71 million can be generated from landfill diversion of food waste and added to the country's economy. However, there are challenges in commercialization of waste to biodiesel facilities in KSA, including waste collection and separation, impurities, reactor design and biodiesel quality.
Collapse
Affiliation(s)
- M Rehan
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - J Gardy
- School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
| | - A Demirbas
- Department of Industrial Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - U Rashid
- Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - W M Budzianowski
- Wojciech Budzianowski Consulting Services, Wrocław, Poland; Renewable Energy and Sustainable Development (RESD) Group, Wrocław, Poland
| | - Deepak Pant
- Separation & Conversion Technology, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium
| | - A S Nizami
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia.
| |
Collapse
|
40
|
Miandad R, Kumar R, Barakat M, Basheer C, Aburiazaiza A, Nizami A, Rehan M. Untapped conversion of plastic waste char into carbon-metal LDOs for the adsorption of Congo red. J Colloid Interface Sci 2018; 511:402-410. [DOI: 10.1016/j.jcis.2017.10.029] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 10/01/2017] [Accepted: 10/08/2017] [Indexed: 11/15/2022]
|
41
|
Khan N, Khan MD, Nizami AS, Rehan M, Shaida A, Ahmad A, Khan MZ. Energy generation through bioelectrochemical degradation of pentachlorophenol in microbial fuel cell. RSC Adv 2018; 8:20726-20736. [PMID: 35542361 PMCID: PMC9080799 DOI: 10.1039/c8ra01643g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 05/28/2018] [Indexed: 12/05/2022] Open
Abstract
Bio-electrochemical degradation of pentachlorophenol was carried out in single as well as dual chambered microbial fuel cell (MFC) with simultaneous production of electricity. The maximum cell potential was recorded to be 787 and 1021 mV in single and dual chambered systems respectively. The results presented nearly 66 and 89% COD removal in single and dual chambered systems with corresponding power densities of 872.7 and 1468.85 mW m−2 respectively. The highest coulombic efficiency for single and dual chambered counterparts was found to be 33.9% and 58.55%. GC-MS data revealed that pentachlorophenol was more effectively degraded under aerobic conditions in dual-chambered MFC. Real-time polymerase chain reaction showed the dominance of exoelectrogenic Geobacter in the two reactor systems with a slightly higher concentration in the dual-chambered system. The findings of this work suggested that the aerobic treatment of pentachlorophenol in cathodic compartment of dual chambered MFC is better than its anaerobic treatment in single chambered MFC in terms of chemical oxygen demand (COD) removal and output power density. Bio-electrochemical degradation of pentachlorophenol was carried out in single as well as dual chambered microbial fuel cell (MFC) with simultaneous production of electricity.![]()
Collapse
Affiliation(s)
- Nishat Khan
- Environmental Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - M. Danish Khan
- Environmental Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Abdul-Sattar Nizami
- Center of Excellence in Environmental Studies (CEES)
- King Abdulaziz University
- Jeddah
- Saudi Arabia
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES)
- King Abdulaziz University
- Jeddah
- Saudi Arabia
| | - Azfar Shaida
- Department of Chemistry
- Indian Institute of Technology
- Roorkee 247667
- India
| | - Anees Ahmad
- Environmental Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Mohammad Z. Khan
- Environmental Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| |
Collapse
|
42
|
|
43
|
Rehan M, Nizami AS, Asam ZUZ, Ouda OK, Gardy J, Raza G, Naqvi M, Mohammad Ismail I. Waste to Energy: A Case Study of Madinah City. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.egypro.2017.12.113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
44
|
|
45
|
Qureshi AS, Khushk I, Naqvi SR, Simiar AA, Ali CH, Naqvi M, Danish M, Ahmed A, Majeed H, Mir Jatt AN, Rehan M, Nizami AS. Fruit Waste to Energy through Open Fermentation. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.egypro.2017.12.145] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
46
|
|
47
|
Miandad R, Barakat MA, Rehan M, Aburiazaiza AS, Ismail IMI, Nizami AS. Plastic waste to liquid oil through catalytic pyrolysis using natural and synthetic zeolite catalysts. Waste Manag 2017; 69:66-78. [PMID: 28882427 DOI: 10.1016/j.wasman.2017.08.032] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 08/10/2017] [Accepted: 08/17/2017] [Indexed: 05/26/2023]
Abstract
This study aims to examine the catalytic pyrolysis of various plastic wastes in the presence of natural and synthetic zeolite catalysts. A small pilot scale reactor was commissioned to carry out the catalytic pyrolysis of polystyrene (PS), polypropylene (PP), polyethylene (PE) and their mixtures in different ratios at 450°C and 75min. PS plastic waste resulted in the highest liquid oil yield of 54% using natural zeolite and 50% using synthetic zeolite catalysts. Mixing of PS with other plastic wastes lowered the liquid oil yield whereas all mixtures of PP and PE resulted in higher liquid oil yield than the individual plastic feedstocks using both catalysts. The GC-MS analysis revealed that the pyrolysis liquid oils from all samples mainly consisted of aromatic hydrocarbons with a few aliphatic hydrocarbon compounds. The types and amounts of different compounds present in liquid oils vary with some common compounds such as styrene, ethylbenzene, benzene, azulene, naphthalene, and toluene. The FT-IR data also confirmed that liquid oil contained mostly aromatic compounds with some alkanes, alkenes and small amounts of phenol group. The produced liquid oils have high heating values (HHV) of 40.2-45MJ/kg, which are similar to conventional diesel. The liquid oil has potential to be used as an alternative source of energy or fuel production.
Collapse
Affiliation(s)
- R Miandad
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia; Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - M A Barakat
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia; Central Metallurgical R & D Institute, Helwan 11421, Cairo, Egypt
| | - M Rehan
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - A S Aburiazaiza
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - I M I Ismail
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - A S Nizami
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia.
| |
Collapse
|
48
|
Nizami AS, Rehan M, Waqas M, Naqvi M, Ouda OKM, Shahzad K, Miandad R, Khan MZ, Syamsiro M, Ismail IMI, Pant D. Waste biorefineries: Enabling circular economies in developing countries. Bioresour Technol 2017; 241:1101-1117. [PMID: 28579178 DOI: 10.1016/j.biortech.2017.05.097] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [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: 04/01/2017] [Revised: 05/15/2017] [Accepted: 05/16/2017] [Indexed: 05/25/2023]
Abstract
This paper aims to examine the potential of waste biorefineries in developing countries as a solution to current waste disposal problems and as facilities to produce fuels, power, heat, and value-added products. The waste in developing countries represents a significant source of biomass, recycled materials, chemicals, energy, and revenue if wisely managed and used as a potential feedstock in various biorefinery technologies such as fermentation, anaerobic digestion (AD), pyrolysis, incineration, and gasification. However, the selection or integration of biorefinery technologies in any developing country should be based on its waste characterization. Waste biorefineries if developed in developing countries could provide energy generation, land savings, new businesses and consequent job creation, savings of landfills costs, GHG emissions reduction, and savings of natural resources of land, soil, and groundwater. The challenges in route to successful implementation of biorefinery concept in the developing countries are also presented using life cycle assessment (LCA) studies.
Collapse
Affiliation(s)
- A S Nizami
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia.
| | - M Rehan
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Waqas
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Naqvi
- Future Energy Center, Department of Energy, Building and Environment, Mälardalen University, Sweden
| | - O K M Ouda
- Department of Civil Engineering, Prince Mohamed Bin Fahd University, Al Khobar, Saudi Arabia
| | - K Shahzad
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - R Miandad
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Z Khan
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - M Syamsiro
- Department of Mechanical Engineering, Janabadra University, Yogyakarta, Indonesia
| | - I M I Ismail
- Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Deepak Pant
- Separation & Conversion Technology, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium
| |
Collapse
|
49
|
Khan MD, Khan N, Nizami AS, Rehan M, Sabir S, Khan MZ. Effect of co-substrates on biogas production and anaerobic decomposition of pentachlorophenol. Bioresour Technol 2017; 238:492-501. [PMID: 28475991 DOI: 10.1016/j.biortech.2017.04.063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 01/06/2017] [Revised: 04/16/2017] [Accepted: 04/17/2017] [Indexed: 06/07/2023]
Abstract
This study aims to examine the effect of different co-substrates on the anaerobic degradation of pentachlorophenol (PCP) with simultaneous production of biogas. Acetate and glucose were added as co-substrates to monitor and compare the methanogenic reaction during PCP degradation. During the experiment, a chemical oxygen demand (COD) removal efficiency of 80% was achieved. Methane (CH4) production was higher in glucose-fed anaerobic reactors with the highest amount of CH4 (303.3µL) produced at 200ppm of PCP. Scanning electron microscopy (SEM) demonstrates the high porous structure of anaerobic sludge with uniform channels confirming better mass transfer and high PCP removal. Quantitative real-time PCR (qPCR) revealed that methanogens were the dominating species while some sulfate reducing bacteria (SRBs) were also found in the reactors. The study shows that strategic operation of the anaerobic reactor can be a feasible option for efficient degradation of complex substrates like PCP along with the production of biogas.
Collapse
Affiliation(s)
- Mohammad Danish Khan
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Nishat Khan
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Abdul-Sattar Nizami
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Suhail Sabir
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Mohammad Zain Khan
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India.
| |
Collapse
|
50
|
Rehan M, Nallagonda R, Das BG, Meena T, Ghorai P. Synthesis of Functionalized Benzo[b]furans via Oxidative Cyclization of o-Cinnamyl Phenols. J Org Chem 2017; 82:3411-3424. [PMID: 28249386 DOI: 10.1021/acs.joc.6b02752] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Disclosed herein is an efficient synthetic route for the synthesis of functionalized 2-benzyl benzo[b]furans via a regioselective 5-exo-trig intramolecular oxidative cyclization of ortho-cinnamyl phenols using [PdCl2(CH3CN)2] as catalyst and benzoquinone as an oxidant. Further, a sequential ortho-cinnamylation of phenols using cinnamyl alcohols catalyzed by Re2O7, followed by an oxidative cyclization using the above Pd catalyst, is performed. The reaction showed broad substrate scope with good to excellent yields.
Collapse
Affiliation(s)
- Mohammad Rehan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Rajender Nallagonda
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Braja Gopal Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Tannu Meena
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| |
Collapse
|