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Hemida, M. H., H. Moustafa, S. Mehanny, M. Morsy, A. Dufresne, E. A. E. L. N. Rahman, and M. M. Ibrahim, "Cellulose nanocrystals from agricultural residues (Eichhornia crassipes): Extraction and characterization", Heliyon, vol. 9, no. 6: Elsevier, 2023. Abstract
Refate, A., Y. Mohamed, M. Mohamed, M. Sobhy, K. Samhy, O. Khaled, K. Eidaroos, H. Batikh, E. El-Kashif, S. El-Khatib, et al., "Influence of electrospinning parameters on biopolymers nanofibers, with emphasis on cellulose & chitosan", Heliyon: Elsevier, 2023. Abstract
Ammar, Z., H. Ibrahim, M. Adly, I. Sarris, and S. Mehanny, "Influence of natural fiber content on the frictional material of brake pads—a review", Journal of Composites Science, vol. 7, no. 2: MDPI, pp. 72, 2023. Abstract
Amer, M. M., P. Rajan, S. Mehanny, A. Artyszak, and M. A. Ahmed, "Innovative Design of an Experimental Jasmine Flower Automated Picker System Using Vertical Gripper and YOLOv5", Agriculture, vol. 13, issue 8, pp. 1595, 2023.
Darwish, L., M. Abdallah, H. Ibrahim, M. Farag, and S. Mehanny, "Advances in the Development of Biodegradable Polymeric Materials for Indispensable Applications in the Biomedical Field", Encyclopedia of Materials: Plastics and Polymers Vol 4: ELSEVIER, 2022. Abstract

Since their emergence, biodegradable polymers have revolutionized the biomedical engineering field. Their high biocompatibility, tailorability, versatility along with easy processability, highly nominated these biomaterials for fabricating biodegradable medical implants. The introduction of this biomaterial class led to an astounding change in the concept of the medical implants from traditionally being bioinert to the nowadays bioactive implants that are capable of not only stimulating certain biological responses but also delivering various drugs and bioactive molecules. In that light, this article will present the frontiers of the world of biodegradable polymers and their indispensable applications in the biomedical field.

Abdalla, M., A. Sims, S. Mehanny, M. Haghshenas, M. Gupta, and H. Ibrahim, "In Vitro Electrochemical Corrosion Assessment of Magnesium Nanocomposites Reinforced with Samarium (III) Oxide and Silicon Dioxide Nanoparticles", Journal of Composites Science, vol. 6, no. 6: MDPI, pp. 154, 2022. Abstract
El-Moayed, M. H., J. Kühn, S. - H. Lee, M. Farag, and S. Mehanny, "Potential of lignin valorization with emphasis on bioepoxy production", Lignin - Chemistry, Structure, and Application: IntechOpen, 2022. Abstract


Fürtauer, S., M. Hassan, A. Elsherbiny, S. Gabal, S. Mehanny, and H. Abushammala, "Current Status of Cellulosic and Nanocellulosic Materials for Oil Spill Cleanup", Polymers, vol. 13, issue 16, pp. 2739, 2021. AbstractWebsite

Recent developments in the application of lignocellulosic materials for oil spill removal are discussed in this review article. The types of lignocellulosic substrate material and their different chemical and physical modification strategies and basic preparation techniques are presented. The morphological features and the related separation mechanisms of the materials are summarized. The material types were classified into 3D-materials such as hydrophobic and oleophobic sponges and aerogels, or 2D-materials such as membranes, fabrics, films, and meshes. It was found that, particularly for 3D-materials, there is a clear correlation between the material properties, mainly porosity and density, and their absorption performance. Furthermore, it was shown that nanocellulosic precursors are not exclusively suitable to achieve competitive porosity and therefore absorption performance, but also bulk cellulose materials. This finding could lead to developments in cost- and energy-efficient production processes of future lignocellulosic oil spillage removal materials.

Mehanny, S., E. E. Abu-El Magd, M. Ibrahim, M. Farag, R. Gil-San-Millan, J. Navarro, E. El-Kashif, and others, "Extraction and characterization of nanocellulose from three types of palm residues", Journal of Materials Research and Technology, vol. 10: Elsevier, pp. 526-537, 2021. Abstract


Mehanny, S., E. A. - E. E. Magd, S. Sorabara, J. Navarro, and R. Gil-San-Millan, "Spanish Poplar Biomass as a Precursor for Nanocellulose Extraction", Applied Sciences, vol. 11, issue 15, pp. 1-12, 2021. AbstractWebsite

The effect of acidic hydrolysis duration on nanocellulose size, morphology, and proper ties was investigated, which opens up a whole new horizon of versatility in poplar applications. This study aimed to examine Spanish poplar wastes as raw material to extract crystalline nanocellulose (CNC), which substantiates the importance of poplar wastes. Wastes were pulped using 1 L of 10% NaOH (wt./wt.) solution, and bleached several times by NaClO2; afterwards, white wastes were subjected to acidic hydrolysis by 60% H2SO4 for either 5, 10, or 15 min. Microcrystalline cellulose (MCC) underwent a similar hydrolysis protocol as poplar as control. TEM, IR, and XRD characterization techniques were performed. Poplar based nanocellulose sized 219 nm length and 69 nm width after 15 min acidic hydrolysis. MCC yielded 122 nm length and 12 nm width crystals after 10 min acidic hydrolysis. Hydrolysis resulted in a drastic change and intense peaks at 3500 and 2900 cm−1 for nanocellulose. Although pre-hydrolysis fiber treatment was not influencial on the crystallinity of poplar, acidic hydrolysis remarkably raised the crystallinity index (CI) by 7–8%. The more hydrolysis duration was prolonged, the size of the resulting crystal (whisker) decreased, and the aspect ratio increased. Hydrolysis was more impactful on MCC than poplar. However, for future work, it seems that longer duration of pulping and bleaching could have significantly removed unwanted components (hemicellulose and lignin), showcased in IR and XRD, and hence smoothened the following hydrolysis.

Mehanny, S., H. Ibrahim, L. Darwish, M. Farag, A. - H. M. El-Habbak, and E. El-Kashif, "Effect of Environmental Conditions on Date Palm Fiber Composites", Date Palm Fiber Composites: Springer, pp. 287–320, 2020. Abstract
Ibrahim, M. M., H. Moustafa, E. A. E. L. N. Rahman, S. Mehanny, M. H. Hemida, and E. El-Kashif, "Reinforcement of starch based biodegradable composite using Nile rose residues", Journal of Materials Research and Technology, vol. 9, no. 3: Elsevier, pp. 6160–6171, 2020. Abstract
Mehanny, S., L. Darwish, A. E. H. E. Habbak, E. El-Kashif, M. Farag, and H. Ibrahim, "Effect of Glue and Temperatures on Mechanical Properties of Starch-Based Biodegradable Composites Reinforced with Bagasse Fibers", International Journal of Biotechnology and Biomaterials Engineering, vol. 1, issue 1, 2019.
Ibrahim, H., S. Mehanny, L. Darwish, and M. Farag, "A Comparative Study on the Mechanical and Biodegradation Characteristics of Starch-Based Composites Reinforced with Different Lignocellulosic Fibers", Journal of Polymers and the Environment, vol. 25, issue 99, pp. 1-14, 2017.
Mehanny, S., L. Darwish, H. Ibrahim, M. T. El-Wakad, and M. Farag, "High-Content Lignocellulosic Fibers Reinforcing Starch-Based Biodegradable Composites: Properties and Applications", Composites from Renewable and Sustainable Materials: InTech, 2016. Abstract
Ibrahim, H., M. Farag, H. Megahed, and S. Mehanny, "Characteristics of starch-based biodegradable composites reinforced with date palm and flax fibers", Carbohydrate polymers, vol. 101: Elsevier, pp. 11–19, 2014. Abstract
Mehanny, S., M. Farag, R. M. Rashad, and H. Elsayed, "Fabrication and characterization of starch based bagasse fiber composite", ASME 2012 International Mechanical Engineering Congress and Exposition: American Society of Mechanical Engineers, pp. 1345–1353, 2012. Abstract
Elsayed, H., M. Farag, H. Megahed, and S. Mehanny, "Influence of flax fibers on properties of starch-based composites", ASME 2012 International Mechanical Engineering Congress and Exposition: American Society of Mechanical Engineers, pp. 1397–1408, 2012. Abstract