Sally Elashery

• PhD( Lectuer)
• Cairo University

The temperature-triggered gating in flexible nanoporous frameworks exhibits dynamic nanopore regulation under external stimuli, leading to optimum pore sizes and enhanced selectivity for isotopologue separation. In this work, we report one of the very rare observations of temperature-responsive gating in efficient bio-derived ‘nanoporous carbon’ ma...

Nanoclay, a versatile nanomaterial with exceptional properties, has revolutionized multiple industries, including textiles. This chapter introduces an engaging introduction to nanoclay and its functionalization, showcasing its wide-ranging applications beyond traditional fabrics. The significance of nanoclay in addressing the evolving needs of the...

The alarming rise in atmospheric CO2 levels, primarily driven by fossil fuel combustion and industrial processes, has become a major contributor to global climate change. Effective CO2 capture technologies are urgently needed, particularly for the selective removal of CO2 from industrial gas streams, such as flue gas and biogas, which often contain...

A novel and environmentally friendly route was developed for production of sustainable flame retardant, antibacterial and UV protective nanoparticles for polymeric films nanocomposites. For the first time, dried molokhia leaves were engineered into spherical nanoparticles with an average size of 8.5 nm via an eco-friendly, one-pot solid-state ball-...

In this study, sustainable nanoporous carbon materials that are efficient, renewable, cost-effective and adaptable were developed. These microporous feature carbon adsorbents were synthesized utilizing a straightforward and efficient method. Plum stones are residual fruit materials that offer a financially feasible and sustainable carbon source wit...

The enormous depletion of fossil fuel reserves has been attributed to the rapid expansion in the usage of fossil fuels, which currently serve as the dominant energy source on a worldwide scale. Thus, environmental pollution and energy crisis are anticipated to occur as a result of the significant emission of greenhouse gases specifically carbon dio...

Textiles constitute a large percentage of the market due to its advantages such as being comfortable, available, diverse and easy to use, but because of its easier ignition and its thermal instability that hinder its use and that lead to a harmful effect on the environment and people. Thus, flame retardant materials have to incorporate on the texti...

Herein, bentonite-chitosan nanocomposite (BT-CS nanocomposite) has been synthesized and exploited, for the first time, as a dual adsorbent for the removal of both of an anionic (Reactive Red 195 (RR)) and a cationic (Crystal Violet (CV)) dyes from aqueous solution. The adsorption behavior of the exploited nano-adsorbent towards the dyes under inves...

Textile-based materials constitute the majority of market products; however, their uses are limited in some applications due to their low thermal stability and high flammability hazards. Therefore, in this study, we developed a conductive cotton textile fabric based on a green fabrication method using different composites of three different dimensi...

Rational design and fabrication of multifunctional textile fabrics coatings were developed. The green coatings were facilely prepared from metal-organic-framework UiO-66 as porous crystalline framework which was easily decorated with green spherical polypyrrole nanoparticles of an average size of 165 nm and then wrapped with chitosan chains. The na...

In this work, the exploitation of the synthesized magnesium oxide nanoparticles and MgO-bentonite nanocomposite as an effective photocatalyst has been reported. They were utilized to study their applicability for the photocatalytic degradation of crystal violet in wastewater. Fourier-transform infrared (FTIR) spectra, X-ray powder diffraction (XRPD...

In order to meet the technical requirements, it is necessary to infuse new functions into textile fabrics due to the rapid advancement in the exploitation of textile-based materials in various industrial applications [...]

The rapid progress in the use of textile fabric materials in various industrial and domestic applications requires the inclusion of smart functions to achieve comfortable and safety properties to the end users. However, among these functions is the protection against harmful UV rays that cause harmful effects to human beings and textile materials....

The importance of different polymorphic forms of iron oxide nanoparticles attracted a lot of attentions in various applications due to their unique electrical, optical and magnetic properties. Moreover, the excellent biocom-patibility, high surface area, spherical shape, tunable nanoscale size and the availability of synthesis route make them desir...

New and innovative conservative coating layer for historical paper consolidation was developed. The smart coating was developed based on cellulose nanocrystals of an average diameter of 10 nm extracted from cotton fiber. Then, inorganic halloysite nanotubes were uniformly dispersed in cellulose nanocrystals colloidal solution producing new transpar...

The extensive usage of fossil fuels due to the expansion of industrial activities causes huge emissions of carbon dioxide gas which is the main greenhouse gas. Hence, this accelerates the global warming effect and its associated climate change phenomena. To this end, efficient capture of harmful CO 2 emissions is a necessary and mandatory process f...

Innovative, green and sustainable multifunctional historical textile coating was developed. The developed coating was constructed from renewable molokhia extract and naturally deposited halloysite nanotubes in presence of chitosan chains. The halloysite nanotubes were wrapped with molokhia extract and then uniformly dispersed in chitosan solution u...

Herein, for the first time, an innovative and sensitive flexible sensor for efficient potentiometric monitoring of Ni (II) ions has been designed and developed. The developed flexible sensor is constructed from highly porous activated flexible carbon cloth decorated with nitrogen and spherical porous carbon nanoparticles derived from low-cost cotto...

Polymeric and textile based materials constitute the majority of market products, however, due to their low thermal stability and high flammability hazards, their uses are limited in some applications. Therefore, flame retardant materials have to be dispersed as fillers in polymer matrix and coated on textile fabrics to enhance their fire safety an...

The extensive usage of fossil fuels due to the expansion of industrial activities causes huge emissions of carbon dioxide gas which is the main greenhouse gas. Hence, this accelerates the global warming effect and its associated climate change phenomena. To this end, efficient capture of harmful CO 2 emissions is a necessary and mandatory process f...

Herein, hybrid carbon sensor has been developed with graphite sheets as a matrix, tricresyl phosphate (TCP) as a plasticizer and nanosheets of 2D Cu-MOF (metal-organic framework) as an electroactive material for the ultrasensitive Cu(II) ion detection in various real samples. Where, the present study proves the efficiency of 2D Cu-MOF as a promisin...

A potentiometric sensor modified with a nanocomposite of montmorillonite sheets decorated with polyaniline nanofibers(MT-PANI-NFs)and tricresyl phosphate(TCP)has been developed for the estimation of clomipramine HCl(CLP.HCl).The optimum potentiometric performance of the sensor was achieved by mixing of MT-PANI-NFs:TCP:graphene with a ratio of 2.69:...

Herein, for the first time, o-benzoyl benzoic acid has been explored as a promising electroactive material for the fabrication of sensitive, precise and accurate carbon paste electrode (CPE) for selective detection of Cr (III) ion. o-benzoyl benzoic acid (o-BBA) as a sensing material and tricresylphosphate (TCP) as a solvent mediator improved the d...

Novel and efficient flexible carbon sieves for landfill gas and biogas upgrading are developed. Various carbon cloths and activated ones have been developed from different carbon precursors (cotton, viscose rayon and blend furniture textiles). In order to enhance the charring effect and nitrogen elements doping, the polypyrrole nanoparticles (PNP)...

Novel hybrid nanocomposite has been developed using an environmentally friendly method. The new hybrid nanocomposite was synthesized in two green steps at ambient conditions as graphite decorated with gold nanoparticles and then coated with polypyrrole chains through solvent-less vapor polymerization method. Developed graphite–gold nanoparticles-po...

Promising in situ carbon paste electrodes (ICPEs) have been fabricated for selective cinchocaine HCl (CIN.HCl) determination in its pure form and as co-formulated with other drugs in its pharmaceutical preparation (Otal). The fabricated ICPEs were modified with various ion pairing agents as sodium tetraphenylborate (NaTPB), phosphotungstic acid (PT...

The textile materials are involved in various applications due to their unique mechanical properties. However, the rapid consumer’s conformability requirements and special application needs force the industry and academic societies to develop new generation of textiles called smart textiles. To this end, various smart functions have to be incorpora...

Green and innovative approach was developed for synthesis of smart nanocomposites thin films for various applications. As, nanofilm of PANI-NFs of an average size of 50 nm and average film thickness of 160 nm was synthesized using facile one pot step at ambient condition using chemical oxidative polymerization. Then, polypyrrole chain layer was pol...

Innovative screen-printed electrode (SPE) based on Alizarin Red S (ARS) for Ag (I) ion determination was developed. The ionophore content was varied and optimized which indicated that the ink incorporating 30 mg of Alizarin Red S reflects the best experimental performance exhibiting monovalent Nernstian slope value of 59.95 mV decade⁻¹ over a consi...

The rapid growth of worldwide population in conjunction with expansion in industry sectors in the world attributed to huge consumption of limited stock fossil fuels. Hence, this expected energy crisis forced the world to find a clean renewable source of energy instead of consumable fossil fuel one. Therefore, there are intensive efforts to use sola...

A comparative study between in situ screen printed (SPE), carbon paste (CPE) and carbon nanotube modified graphite (CNTME) electrodes was established for the determination of tetra-n-butylammonium bromide (TBAB) in pure and spiked tap water samples. Different experimental conditions as ion-pairing agent type and content, carbon nanotube content, pl...

Cost-effective, scalable and efficient electroactive material for ion-selective electrode was developed. Facile nanocomposite composed from montmorillonite clay layers and polyaniline nanofibers (PANI-NFs) was facilely prepared at ambient condition. The polyaniline nanofibers were polymerized on the surface of montmorillonite clay. Then the prepare...

Newly developed modified and in situ modified carbon paste sensors were developed for the determination of chlorpromazine hydrochloride (CPZHC) in pharmaceutical formulations and biological fluids (urine and serum).

Simple, rapid and sensitive spectrophotometric methods were developed for the determination of carbamazepine and mosapride citrate drugs in pure and pharmaceutical dosage forms. These methods are based on ion pair and charge transfer complexation reactions. The first method is based on the reaction of the carbamazepine drug with Mo(V)–thiocyanate i...

Carbon paste electrode has been developed for the potentiometric determination of chlorpromazine HCl drug. This work has focused on the fabrication of carbon paste ion selective electrode for determination of the drug under investigation using potentiometric titration with sodium tetraphenylborate. The performance of such sensor in the potentiometr...