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Optimizing fish skin scaffolds for regenerative medicine: A comparative study of physical and chemical decellularization techniques
(Elsevier BV, 2026-05)
Esmat Azizipour
;
Hengameh Honarkar
;
Reza Yarahmadi
;
Ahmad Vaez
;
Mehdi Kian
Fish skin scaffolds have great potential as biocompatible materials for skin regeneration, as they contain high levels of collagen and are structurally similar to the mammalian extracellular matrix (ECM). In this study, we compared the efficiency of physical decellularization with chemical decellularization using sodium dodecyl sulphate (SDS), sodium lauryl ether sulfate (SLES), and Triton X-100 at two concentrations (0.5% and 1%) and two time intervals (6 and 12 h). The decellularization efficiency and quality of scaffolds were assessed via histological observations, glycosaminoglycan (GAG) content, MTT assay to evaluate cytocompatibility, scaffold degradation rate, and scanning electron microscopy (SEM) observations. Silicone membrane physical decellularization preserves the integrity of the ECM, retains higher levels of GAG (1.5 µg/mm³) and higher levels of fibroblast viability (p < 0.001) and demonstrates limited degradation (< 20% on day 14) compared to chemical decellularization. Chemical decellularization caused some breakdown of the ECM, particularly treatments at 1%-12h, and was able to retain lower levels of GAG (0.5–0.9 µg/mm³) while degrading more (up to 150%). SEM shows the scaffolds from the physical decellularization treatment had a clearer fibrous structure compared to the variable porosity of the chemical treatment.
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Cycloaddition of CO
<sub>2</sub>
and Epoxide at Ambient Conditions Catalyzed by PW
<sub>12</sub>
@HKUST-1 Composite and Optimization Study Using RSM
(American Chemical Society (ACS), 2026-02-06)
Suleiman Gani Musa
;
Zulkifli Merican Aljunid Merican
;
Abdurrashid Haruna
;
Noor Asmawati Binti Mohd Zabidi
;
Mohammad Yusuf
The search for a sustainable and effective catalyst for CO2 fixing using epoxides is part of a global quest for economical carbon capture and utilization solutions. The coupling of metal–organic frameworks (MOFs) with other functional nanomaterials such as polyoxometalates (POMs) has proven to be effective in increasing the heterogeneity and stability of pristine MOF materials. We demonstrated the application of MOF/POM-supported composites (POM@MOF) as catalysts for the fixation of CO2 and epichlorohydrin epoxide (ECH) to chloropropene carbonate. The catalyst was synthesized by impregnating HKUST-1 with (TBA)3PW12O40, a Keggin-type polyoxometalate. The obtained composite, PW12@HKUST-1, was characterized by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) with energy-dispersive spectroscopy (EDS), and N2 adsorption–desorption isotherms. The POM’s presence was confirmed by various analyses. Optimization of the reaction variables was conducted using the response surface methodology model. The optimum condition for the CCD-RSM studies was catalyst amount: 12.50 mg, cocatalyst amount: 0.055 mmol, temperature: 100 °C, and time: mechanism of CO2 conversion 15 h, attaining 89.70% conversion and 97% selectivity. The catalyst shows a remarkable increase in stability and reusability by recycling six times in a row without any significant decrease in catalytic activity.
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Enhancing RhB photocatalytic degradation with ZnO/Sb2MoO6 Z-scheme photocatalyst: Evaluation of performance and mechanism
(Elsevier BV, 2026-04)
HESAM, KAMYAB
;
Tayebeh Khademi
;
Shreeshivadasan Chelliapan
;
Mohammad Yusuf
;
Saravanan Rajendran
Integrating semiconductors to improve light absorption and promote efficient charge-carrier separation is widely regarded as a promising strategy for enhancing photocatalytic performance. Nevertheless, designing heterostructures that simultaneously possess optimal optical characteristics and favorable interfacial energy alignments remains a significant challenge. In this study, a Z-scheme ZnO/Sb₂MoO₆ photocatalyst was successfully fabricated via an efficient hydrothermal synthesis method and employed for photocatalytic RhB degradation for the first time. The XRD results confirmed the successful synthesis of pure bare ZnO, Sb2MoO6, and the ZnO/Sb2MoO6 composite, as evidenced by the characteristic peaks corresponding to these semiconductor materials. UV–Vis spectroscopy revealed that the nanocomposite exhibits a broader absorption range, suggesting its potential application as a visible-light-driven photocatalyst. Additionally, the composite demonstrated a smaller radius in the EIS Nyquist plot, a stronger photocurrent response, and a weaker PL emission intensity, all of which indicate reduced charge transfer resistance and more efficient separation of charge carriers. The ZnO/Sb2MoO6 composite demonstrated significantly enhanced and reliable photocatalytic degradation performance compared to individual ZnO and Sb2MoO6. Under optimal conditions (photocatalyst dosage: 1 g L-1, dye concentration: 5 mg L-1, and pH = 9), the composite achieved a degradation rate constant of 589.3 × 10–4 min-1 for RhB. The Z-scheme heterostructure enhances light absorption, effectively suppresses charge-carrier recombination, and enables the spatial separation of oxidation and reduction sites. Additionally, it preserves an optimal alignment of the valence and conduction bands, thereby sustaining the photocatalyst's robust redox activity. This study introduces an easy approach to developing photocatalysts by creating direct Z-scheme electron transfer pathways, enabling highly effective water purification.
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Material selection of sustainable composites by the valorisation of plastics and agro wastes: An integrated q-rung orthopair fuzzy-based multiple criteria decision making model
(Elsevier BV, 2026-06)
Ashish Soni
;
Sonu Kumar Gupta
;
Dai-Viet N. Vo
;
Natarajan Rajamohan
;
Mohammad Yusuf
The concern for plastic wastes and high usages for building construction materials has promoted the nation towards eco-friendly composite materials for structural components. Anappropriate choice of material improves the functionality and life cycle of a product . The research seeks to promote sustainable practices in building construction for the attainment of the circular economy. This investigation anticipated a fuzzy number-based integrated Stepwise Weight Assessment Ratio Analysis (SWARA)-Complex Proportional Assessment (COPRAS) mathematical model for material selection of eco-friendly composites. In the present work, eight (08) different composites are developed by recycling of waste plastics namely low-density polyethylene, high-density polyethylene, polypropylene, and polyethylene terephthalate with the reinforcement of natural fibres of coconut and jute. The alternatives are ranked by considering seven (07) criteria for structural application such as floor tiles, pavements, panels, etc. The compressive is identified as the most significant while hardness is least preferable criteria for composite having structural applications. The proposed model has identified the alternatives A6 and A1 as the most and least preferable alternatives, respectively. The research has recommended the incorporation of 20 wt.% of jute fibre with 80 wt.% of polypropylene in composites for structural applications. The comparative analysis of rankings against the other well-known techniques has verified the trustworthiness of the model. The high ranges of 0.76–-0.928 for Spearman’s rank correlations coefficient has verified the robustness of the ranking results. The sensitivity analyses have shown the influence of criteria weight on rankings. The suggested mathematical approach can efficiently rank the composites and address the challenges associated in the material selection of polymeric composites in unpredictable environments.
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Trends and Advancements in Utilization of Biomass Waste for Gasification: A Bibliometric Review
(Wiley, 2025-11-24)
Kunmi Joshua Abioye
;
Noorfidza Yub Harun
;
Abdoulmohammad Gholamzadeh Chofreh
;
HESAM, KAMYAB
;
Mohammad Yusuf
Biomass waste gasification is widely recognized as a sustainable and efficient method for converting organic waste into valuable energy, making it a focal point in global research. This study conducts a bibliometric analysis of publications related to this field, focusing on articles indexed in the Elsevier Scopus database from 1977 to 2023 using search terms “biomass waste,” “biomass residue,” “waste biomass,” and “gasification”. Initially, 981 articles were identified, with subsequent refined analyses narrowing the focus to 592 publications, using VOSviewer for in‐depth examination. The analysis revealed that the year 2023 saw the highest publication count with 73 articles, followed by the year 2022 and the year 2020, with 61 and 54 articles, respectively. China, the USA, and India emerged as the leading contributors, accounting for 9.68%, 7.07%, and 6.75% of the total publications, respectively. Top institutions by citations are the University of Saskatchewan (259), Hamad Bin Khalifa University (169), and Paul Scherrer Institut (113). The most prolific researchers in the field include Gulyurtlu, I., Cabrita, I., and Dalai, Ajay K., with citation counts of 1296, 1290, and 1020, respectively. The journals Energy, Fuel, and Energies were identified as authors most preferred publishing choice with 26, 23, and 22 publications, respectively. The keywords “Gasification,” “Biomass,” and “Syngas” were the most frequently occurring, with 194, 147, and 52 occurrences. Keyword analysis also revealed five thematic clusters. These findings offer a detailed overview of the research landscape in biomass waste gasification, emphasizing key contributors, emerging trends, and thematic areas, providing valuable insights for guiding future research in this domain.
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Evaluation of the economic and technological aspects of producing blue hydrogen via ethanol-steam reforming with carbon capture
(Elsevier BV, 2025-12)
Pali Rosha
;
Feysal M. Ali
;
Mohammad Yusuf
;
Hussameldin Ibrahim
An industrially relevant method for obtaining hydrogen from hydrocarbons without emitting carbon into the atmosphere involves ethanol-steam reforming followed by carbon capture. Herein, we present a detailed conceptual process using ethanol-stream reforming to produce blue hydrogen, integrated with a carbon capture plant, followed by a techno-economic analysis. In the first step, the Aspen plus-based simulation of ethanol-stream reforming reactions is performed to optimize the reforming reactor geometrical parameters for a 10 t/day of hydrogen production. Afterward, the carbon capture system was designed with a standalone absorber and stripper, which were subsequently integrated for solvent makeup calculation. Considering the target value of hydrogen production, the optimized reactor diameter and length were found to be 0.18 and 2 m, respectively, corresponding to reactant flow (200 t/day) and heat duty (3.14 MW) at optimal circumstances. Absorber and stripper packing heights of 12.2 m and 5 m, respectively, with column diameters of 1.22 m and 2.60 m are required to extract 95 % CO2 from the reformed product stream. The techno-economic analysis indicates that the cost of producing one kilogram of H2 is $3.5. The computed internal rate of return is 16.6 %, the discounted payback period is 6 years, and the net present value is $13 million.
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Waste-to-energy technologies: a sustainable pathway for resource recovery and materials management
(Royal Society of Chemistry (RSC), 2025-07-03)
Ashish Soni
;
Sonu Kumar Gupta
;
Natarajan Rajamohan
;
Mohammad Yusuf
The huge generation of municipal solid waste along with the reliance on natural resources to meet the ever-increasing demand of energy has stimulated the world towards the exploration of novel methods for the recovery of energy and resources by using the generated waste. Despite the numerous advantages of waste-to-energy (WtE) technologies, these techniques are not widely implemented. The review has summarized the various aspects of WtE techniques including advantages and limitations, techno-economic analysis, challenges and prospects, framework and implementation. The review has identified that the WtE techniques are more efficient than conventional waste management practices. The characteristics of municipal solid waste (MSW) vary with geographical conditions, living standards, socio-economic conditions, etc. Therefore, no particular WtE technique is equally feasible for the treatment of MSW. The strict environmental strategies, policies, and guidelines can assist in selecting the best WtE practice. The thermal treatment methods can effectively reduce the volume of generated waste by up to 90%. Techno-economic analysis has revealed that WtE techniques are economically feasible with suitable measures. The life-cycle assessments have found that WtE techniques can recover up to 27.40% of energy. The food and agriculture waste constitutes 50-56% of the generated waste stream in developing countries thereby highlighting the significance of anaerobic digestion. The implementation of WtE techniques can considerably reduce the emission of greenhouse gases and is beneficial to environmental health. The potential of WtE techniques for effective waste management and promotion of sustainability is underscored. The review contributes to the implementation of more effective measures for MSW management and promotes a circular economy.
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Sustainable Groundwater Management in Water-Scarce Regions: A Spatial Machine Learning Analysis from Rajshahi, Bangladesh
(Bilingual Publishing Group, 2025-08-12)
Sumaya Tabassum
;
Likhon Chandra Roy
;
Amit Kumar Sarkar
;
Yassine Ezaier
;
Hader Ahmed
Ensuring the availability and sustainable management of water (SDG 6) is particularly challenging in dry regions like Rajshahi, Bangladesh, where communities rely heavily on groundwater with limited recharge potential. Issues such as declining water levels and contamination by iron, arsenic, and chloride compromise both user satisfaction and public health. This study aimed to assess groundwater quality risks through regional mapping to guide the installation depth of new water sources. In collaboration with the Department of Public Health Engineering (DPHE), data were collected from 7,388 tube wells across nine upazilas, including well depth, geographic coordinates, and contaminant concentrations. Water quality was evaluated against World Health Organization and Bangladesh standards. Machine learning (XGBoost) and spatial analysis were applied to model contaminant levels based on location and well depth. An initial model showed poor performance, but after identifying and correcting key errors, the refined model yielded significant improvements: R² increased from 0.0345 to 0.62 for iron, from −0.0015 to 0.38 for arsenic, and from 0.12 to 0.71 for chloride. A comprehensive water quality risk map was developed by integrating these results at the upazila level. This map provides actionable insights for government agencies and NGOs to prioritize areas for water quality testing, remediation, and public awareness initiatives, contributing to more informed and sustainable water resource management in the region.
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Nanomaterials and hydrogen production: A comprehensive Review of clean energy strategies, costs, and environmental implications
(Elsevier BV, 2025-09)
Fazil Qureshi
;
Mohammad Asif
;
Mohd Yusuf Khan
;
Abuzar Khan
;
Mohd Naved Khan
An increasing demand for energy coupled with rising pollution levels is driving the search for environmentally clean alternative energy resources to replace fossil fuels. Hydrogen has emerged as a promising clean energy carrier and raw material for various applications. However, its environmental benefits depend on sustainable production methods. The rapid development of nanomaterials (NMs) has opened new avenues for the conversion and utilization of renewable energy (RE). NMs are becoming increasingly important in addressing challenges related to hydrogen (H₂) generation. This review provides an overview of current advancements in H₂ production from biomass via thermochemical (TC) and biological (BL) processes, including associated costs, and explores the applications of nanomaterials in these methods. Research indicates that biological hydrogen (BL-H₂) production remains costly. The challenges associated with the TC conversion process are examined, along with potential strategies for improvement. Finally, the technical and economic obstacles that must be overcome before hydrogen can be widely adopted as a fuel are discussed.
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Biochar as a carrier for plant growth-promoting bacteria in phytoremediation of pesticides
(Elsevier BV, 2025-05-01)
HESAM, KAMYAB
;
Chelliapan, Shreeshivadasan
;
Elham Khalili
;
Rezania, Shahabaldin
;
Balasubramanian, Balamuralikrishnan
This review examines the role of biochar as a carrier for plant growth-promoting bacteria (PGPB) in the phytoremediation process of pesticides. It begins by exploring the properties and performance of biochar, including its production processes and physical and chemical characteristics. The review then discusses the roles and mechanisms of PGPB, such as nitrogen fixation, phosphate solubilization, and phytohormone production, emphasizing how these bacteria can enhance plant growth and tolerance to environmental stresses while aiding in pesticide degradation. The suitability of biochar as a carrier for PGPB is highlighted due to its porous structure, surface chemistry, and ability to create microbial habitats. The interactions between biochar, PGPB, and plants that can enhance phytoremediation efficiency are examined. The review additionally identifies the related challenges and limitations, suggesting areas for further research to develop practical applications. This review aims to provide a comprehensive overview of the potential of biochar as a carrier for PGPB in improving phytoremediation outcomes, explicitly addressing the lack of prior reviews on this topic and highlighting broader implications for sustainable remediation.

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