Basma Eid | National Research Centre (original) (raw)

Papers by Basma Eid

Research paper thumbnail of Eco-friendly modification and antibacterial functionalization of viscose fabric

Journal of The Textile Institute, Nov 11, 2016

Pretreatment of viscose fabric with monochlorotraizinyl β-cyclodextrin (MCT-βCD), as an eco-frien... more Pretreatment of viscose fabric with monochlorotraizinyl β-cyclodextrin (MCT-βCD), as an eco-friendly modifying agent, is accompanied by creation of hosting nanocavities onto the cellulose structure thereby enabling inclusion of certain antibacterial agents namely triclosan, as a classic agent, and AgNO 3 , as well as bioactive agents like green tea extract and Aloe vera gel. The efficiency of hosting the nominated antibacterial agents to confer antibacterial functionality is governed by the type of modification method and follows the decreasing order: exhaustion > pad-steam fixation > pad-dry-cure. The imparted antibacterial functionality of MCT-βCD-loaded fabric samples is determined by type of the hosted antibacterial agent into cavities of βCD and follows the decreasing order: AgNO 3 > green tea extract > triclosan > Aloe vera gel. Nitrogen content analysis, FTIR spectra, SEM image and EDX spectrum of Ag-loaded fabric sample confirmed the impact of suggested treatment sequence on the chemical and surface properties of the functionalized viscose fabric. The results also demonstrate that the imparted antibacterial activity against S. aureus (G+ve) and E. coli (G−ve) bacteria slightly decreased after 15 washing cycles.

Research paper thumbnail of A new approach for imparting durable multifunctional properties to linen-containing fabrics

Carbohydrate Polymers, Feb 1, 2017

This study focused on upgrading the antibacterial activity, UV-protection property, self-cleaning... more This study focused on upgrading the antibacterial activity, UV-protection property, self-cleaning ability and durability to wash of linen and linen/cotton (50/50) blend fabrics to develop multifunctional textile materials without adversely affecting their hydrophilicity. Herein, linen-containing fabrics were first pre-carboxymethylated to create new active sites (-CH2COOH groups) to facilitate subsequent loading of selected active ingredients namely chitosan (Cs), organosilane quaternary ammonium compound (Si-QAC), silver-nanoparticles (Ag-NPs) and titanium oxide nanoparticles (TiO2-NPs) individually and in admixtures. The developed products, especially in case of using mixed active ingredients, exhibit a noticeable improvement in the imparted functional properties regardless of the used substrate. The effectiveness of the imparted functions is determined by type of substrate, its extent of modification, type, concentration and degree of fixation of the used active ingredient onto the pre-modified substrate. Functionalized samples loaded with mixed active ingredients demonstrated a high durability to wash even after 15 washing cycles.

Research paper thumbnail of Eco-Friendly Surface Modification and Multifunctionalization of Cotton Denim Fabric

Egyptian Journal of Chemistry

Research paper thumbnail of Eco-friendly modification and antibacterial functionalization of viscose fabric

The Journal of The Textile Institute, 2016

Pretreatment of viscose fabric with monochlorotraizinyl β-cyclodextrin (MCT-βCD), as an eco-frien... more Pretreatment of viscose fabric with monochlorotraizinyl β-cyclodextrin (MCT-βCD), as an eco-friendly modifying agent, is accompanied by creation of hosting nanocavities onto the cellulose structure thereby enabling inclusion of certain antibacterial agents namely triclosan, as a classic agent, and AgNO 3 , as well as bioactive agents like green tea extract and Aloe vera gel. The efficiency of hosting the nominated antibacterial agents to confer antibacterial functionality is governed by the type of modification method and follows the decreasing order: exhaustion > pad-steam fixation > pad-dry-cure. The imparted antibacterial functionality of MCT-βCD-loaded fabric samples is determined by type of the hosted antibacterial agent into cavities of βCD and follows the decreasing order: AgNO 3 > green tea extract > triclosan > Aloe vera gel. Nitrogen content analysis, FTIR spectra, SEM image and EDX spectrum of Ag-loaded fabric sample confirmed the impact of suggested treatment sequence on the chemical and surface properties of the functionalized viscose fabric. The results also demonstrate that the imparted antibacterial activity against S. aureus (G+ve) and E. coli (G−ve) bacteria slightly decreased after 15 washing cycles.

Research paper thumbnail of A new approach for imparting durable multifunctional properties to linen-containing fabrics

Carbohydrate Polymers, 2017

This study focused on upgrading the antibacterial activity, UV-protection property, self-cleaning... more This study focused on upgrading the antibacterial activity, UV-protection property, self-cleaning ability and durability to wash of linen and linen/cotton (50/50) blend fabrics to develop multifunctional textile materials without adversely affecting their hydrophilicity. Herein, linen-containing fabrics were first pre-carboxymethylated to create new active sites (-CH2COOH groups) to facilitate subsequent loading of selected active ingredients namely chitosan (Cs), organosilane quaternary ammonium compound (Si-QAC), silver-nanoparticles (Ag-NPs) and titanium oxide nanoparticles (TiO2-NPs) individually and in admixtures. The developed products, especially in case of using mixed active ingredients, exhibit a noticeable improvement in the imparted functional properties regardless of the used substrate. The effectiveness of the imparted functions is determined by type of substrate, its extent of modification, type, concentration and degree of fixation of the used active ingredient onto the pre-modified substrate. Functionalized samples loaded with mixed active ingredients demonstrated a high durability to wash even after 15 washing cycles.

Research paper thumbnail of Biomedical Applications of Organic Nanofillers in Polymers

CRC Press eBooks, Jul 12, 2023

Research paper thumbnail of Environmentally Sound Approach for Fabrication of Antibacterial/Anti-UV/Anti-crease and Fragrant Denim Fabrics

Egyptian Journal of Chemistry, Nov 14, 2021

Research paper thumbnail of Development of functionalized cellulose/wool blended fabrics for high performance textiles

The Journal of The Textile Institute, 2017

Recently, increasing demands for high quality, high value-added, durable, safe and eco-friendly f... more Recently, increasing demands for high quality, high value-added, durable, safe and eco-friendly functional cellulose/wool blended fabrics have stimulated intensive research and development efforts. Therefore, the main goal of the present work was to develop new functional finishing formulations using citric acid/ sodium hypophosphite (CA/SHP) cross-linking system along with certain bio-active agents based on triclosan, choline chloride, organosilane quaternary compound or chitosan to get anticrease/antibacterial bi-functionalized blends. Also, CA/SHP and bio-active agent based on AgCl/TiO 2 finishing formulation was used to impart anti-crease/anti-bacterial/anti-UV multifunctionalities to the treated fabrics. Type and extent of improvement as well as durability to wash of the imparted function were governed by chemical composition and concentration of the active-additive as well as nature and extent of modification of the treated substrates. SEM images and EDX spectra of some samples were reported. In addition, the tentative reaction mechanisms were also discussed.

Research paper thumbnail of Single-stage process for bifunctionalization and eco-friendly pigment coloration of cellulosic fabrics

The Journal of The Textile Institute, 2015

A facile single-stage process for enhancing the antibacterial activity and UV-shielding property ... more A facile single-stage process for enhancing the antibacterial activity and UV-shielding property of cotton and viscose pigment prints was reported. Results indicated that both the functional and coloration properties of the obtained pigment prints were improved significantly by incorporation of TiO2 nano sol (average molecular size ≈5 nm, 15 g/kg) into the solvent-free pigment printing pastes. Differences in the imparted antibacterial activity and UV-blocking properties as well as in the depth of the modified pigment prints were attributed to the differences in the type of cellulosic substrate, efficiency of the used binding agent, extent of loading, and immobilizing both the TiO2-NPs and pigment particles during the microwave-fixation step as well as on the type of pigment colorant. Also, the obtained results demonstrated that the modified pigment prints, i.e. TiO2-NPs-loaded pigment prints, showed durable antibacterial efficacy and UV-shielding capacity even after 15 washing cycle...

Research paper thumbnail of リネン含有布への耐久性のある多機能特性を付与するための新しいアプローチ【Powered by NICT】

Carbohydrate Polymers, 2017

Research paper thumbnail of Green synthesized chitosan and ZnO nanoparticles for sustainable use in multifunctionalization of cellulosic fabrics

Polymer Bulletin

A green sustainable strategy for biosynthesis of ZnONPs and chitosan nanoparticles (ZnONPs: 20–25... more A green sustainable strategy for biosynthesis of ZnONPs and chitosan nanoparticles (ZnONPs: 20–25 nm and CSNPs: 70–90 nm) has been developed, their potential applications in multifunctional finishing of cotton and viscose fabrics to impart anti-crease, anti-UV and antibacterial functions using citric acid/Na-hypophosphite CA (15 g/L)/SHP (15 g/L), as CH2O-free ester-crosslinking system and the pad-dry-cure method. The obtained results signify that the extent of improvement in the imparted functional properties is governed by type of cellulosic substrate, kind and concentration of nano-additive as well as type of bio-functional additive, namely, L-ascorbic acid or vanillin (20 g/L each). Moreover, the best results show that using CSNPs (2.5 g/L)/ZnONPs (15 g/L), as an eco-friendly two component mixture, brought about an enhancement in both chemical and functional properties of treated substrates which can be ranked as follows: nitrogen content (N%): viscose (1.818) > cotton (1.592...

Research paper thumbnail of Development of eco-friendly colored/multifunctionalized cellulose/polyester blended fabrics using plasma preactivation and subsequent coloration/multifunctionalization in single stage

Polymer Bulletin

A new green approach was developed in the present study to pre-activate and modify the cellulose/... more A new green approach was developed in the present study to pre-activate and modify the cellulose/polyester blended fabrics surfaces using atmospheric plasma, as a green alternative to non-eco-friendly conventional chemical modification processes, followed by post-dyeing/functional finishing to obtain high value-added, multifunctional, protective and colored blended fabrics. The obtained results demonstrated that the imparted antibacterial and anti-UV functional properties and the increase in color strength are greatly improved owing to plasma pre-modification step. Type of plasma gas, O2− or N2−, blended substrate, cotton/polyester (C/PET) or viscose/polyester (V/PET), kind of coloring agent: pigment, basic dye or curcumin natural dye, as well as the chemical nature of functional additive: thyme oil, clove oil, lavender, tulsi, ginger, vanillin, ascorbic acid or salicylic acid, ZnO − or Al2O3− NPs have a significant impact on extent of coloration and bi-functionalization of the fina...

Research paper thumbnail of Potential Applications of Sustainable Polymers in Functionalization of Cellulosic Textile Materials

Processing and Applications, 2015

Research paper thumbnail of Environmentally Sound Approach for Fabrication of Antibacterial/Anti-UV/Anti-crease and Fragrant Denim Fabrics

Egyptian Journal of Chemistry, 2021

Research paper thumbnail of A Green Approach for Modification and Functionalization of Wool Fabric Using Bio- and Nano-Technologies

In the present work, we propose a green and sustainable strategy for eco-friendly surface modific... more In the present work, we propose a green and sustainable strategy for eco-friendly surface modification of wool structure using biosynthesized kerationlytic proteases, from C4-ITA-EGY, Streptomyces harbinensis S11-ITA-EGY and Streptomyces carpaticus S33-ITA-EGY, followed by subsequent environmentally sound functionalization of the bio-treated substrates using ZnONPs, ZrO2NPs, ascorbic acid and vanillin, individually, to impart durable antibacterial and UV-protection properties. The changes in surface modification, and the extent of functionalization of the final products were characterized by SEM, EDX, antibacterial efficacy, UV-blocking ability, loss in weight, nitrogen content and durability to wash analysis. The obtained data reveals that, the developed green wool fabrics exhibit outstanding durable antibacterial activity and UV-blocking ability for fabricating multi-functional textile products can be utilized in a wide range of sustainable protective textiles, irrespective of the...

Research paper thumbnail of Biosynthesis, optimization and potential textile application of fungal cellulases/xylanase multifunctional enzyme preparation from <i>Penicillium</i> sp. SAF6

The main task of the present work is to search for fungal strains isolated from agricultural soil... more The main task of the present work is to search for fungal strains isolated from agricultural soil with the potential to produce cellulases/xylanase enzyme preparation for bio-finishing of textiles. The most potent fungal strain (SAF6) was subjected to molecular identification using 18 SrRNA and was identified as <i>Penicillium</i> sp. SAF6 with the novel accession number of KM222497. Factors affecting the produced mixed enzyme activity were investigated. The optimum conditions for achieving maximum activity of the cellulases (FPase, CMCase and β-glucosidase) in addition to xylanase were the initial culture pH media 5, yeast extract (1.5gN/L), medium-to-air ratio (1:5) for FPase and CMCase and (1:10) for β-glucosidase, at 30 °C for 8 days incubation period. Potential application of the prepared crude enzyme in bio-finishing of cellulosic substrates, namely, bleached cotton, linen and indigo dyed fabrics were explored. Using the multi-component enzyme at appropriate dosage...

Research paper thumbnail of Sustainable textile finishing processes and pollution control based on enzyme technology

Green Chemistry for Sustainable Textiles, 2021

Abstract The intensive use of fresh water, nonrenewable energy, and nonbiodegradable hazardous ch... more Abstract The intensive use of fresh water, nonrenewable energy, and nonbiodegradable hazardous chemicals along with subsequent generation of hazardous wastes in traditional textile wet processing industry have serious negative impacts on product quality, eco-system, as well as human health. Currently, the adoption and implementation of enzyme technology, as one of the most rapidly promising/growing and green technologies, in textile wet processing, have been enforced to assure economic and environmental improvements along with social responsibility, i.e., sustainable development. This chapter will deal with: developments in production methods of bioprocessing textile enzymes, optimal conditions for attaining high activity/functionality and stability, their potential applications in textile wet processing on natural and/or manmade fibers and their utilization in pollution control, source reduction and/or end-of-pipe treatments. Future prospects to develop more efficient bioprocessing of textiles, to produce high value-added textile products, as well as to minimize the environmental footprint will be highlighted.

Research paper thumbnail of The potential use of nanotechnology for antimicrobial functionalization of cellulose-containing fabrics

Green Chemistry for Sustainable Textiles, 2021

Currently, a wide range of antimicrobial agents are available and used to inhibit the growth or k... more Currently, a wide range of antimicrobial agents are available and used to inhibit the growth or kill the pathogenic microorganisms for preventing the cross-infection and inhibiting the spread of infectious diseases, counteracting the development of unpleasant odor, and/or protecting the textile materials from damage due to the microbial attack. Recently, there has been an increased interest in replacing the non-eco-friendly antimicrobial agents and nonsustainable application techniques with eco-friendly sustainable ones for fabricating high performance and function textile materials to meet both the consumer needs for hygienic clothing, as well as textile ecology aspects, namely, production, human, and disposal ecology. This chapter highlights the advantages of using nanotechnology and nanostructured materials in antimicrobial and hygiene finishes of cellulose-containing textiles. Classification of the major antimicrobial agents based on nano-sized materials, preparation and applica...

Research paper thumbnail of Functional nanofibers: fabrication, functionalization, and potential applications

Incorporation of nanomaterials and nanotechnology as emerging technology into production of texti... more Incorporation of nanomaterials and nanotechnology as emerging technology into production of textile materials facilitates the upgrading of existing textile performance properties, enables the development of innovative textile materials as well as creates high value-added products with remarkable functionalities. A number of materials at the nano dimensions have been developed such as nanofibers, carbon tubes, and nanoparticles (e.g., nobel metal and metal oxide, etc.). This chapter discusses fabrication of nanofibers using electrospinning, functionalization of the fabricated nanofibers using different techniques, evaluation of the imparted functional properties, as well as potential applications of the produced functional nanofibers. Finally, recent progress, future developments, and environmental concerns are highlighted.

Research paper thumbnail of Multifunctional cellulose-containing fabrics using modified finishing formulations

RSC Adv., 2017

High performance functional cellulose-containing fabrics were prepared by including ZrO–NPs, ZnO–... more High performance functional cellulose-containing fabrics were prepared by including ZrO–NPs, ZnO–NPs and TiO2–NPs into traditional finishing formulations.

Research paper thumbnail of Eco-friendly modification and antibacterial functionalization of viscose fabric

Journal of The Textile Institute, Nov 11, 2016

Pretreatment of viscose fabric with monochlorotraizinyl β-cyclodextrin (MCT-βCD), as an eco-frien... more Pretreatment of viscose fabric with monochlorotraizinyl β-cyclodextrin (MCT-βCD), as an eco-friendly modifying agent, is accompanied by creation of hosting nanocavities onto the cellulose structure thereby enabling inclusion of certain antibacterial agents namely triclosan, as a classic agent, and AgNO 3 , as well as bioactive agents like green tea extract and Aloe vera gel. The efficiency of hosting the nominated antibacterial agents to confer antibacterial functionality is governed by the type of modification method and follows the decreasing order: exhaustion > pad-steam fixation > pad-dry-cure. The imparted antibacterial functionality of MCT-βCD-loaded fabric samples is determined by type of the hosted antibacterial agent into cavities of βCD and follows the decreasing order: AgNO 3 > green tea extract > triclosan > Aloe vera gel. Nitrogen content analysis, FTIR spectra, SEM image and EDX spectrum of Ag-loaded fabric sample confirmed the impact of suggested treatment sequence on the chemical and surface properties of the functionalized viscose fabric. The results also demonstrate that the imparted antibacterial activity against S. aureus (G+ve) and E. coli (G−ve) bacteria slightly decreased after 15 washing cycles.

Research paper thumbnail of A new approach for imparting durable multifunctional properties to linen-containing fabrics

Carbohydrate Polymers, Feb 1, 2017

This study focused on upgrading the antibacterial activity, UV-protection property, self-cleaning... more This study focused on upgrading the antibacterial activity, UV-protection property, self-cleaning ability and durability to wash of linen and linen/cotton (50/50) blend fabrics to develop multifunctional textile materials without adversely affecting their hydrophilicity. Herein, linen-containing fabrics were first pre-carboxymethylated to create new active sites (-CH2COOH groups) to facilitate subsequent loading of selected active ingredients namely chitosan (Cs), organosilane quaternary ammonium compound (Si-QAC), silver-nanoparticles (Ag-NPs) and titanium oxide nanoparticles (TiO2-NPs) individually and in admixtures. The developed products, especially in case of using mixed active ingredients, exhibit a noticeable improvement in the imparted functional properties regardless of the used substrate. The effectiveness of the imparted functions is determined by type of substrate, its extent of modification, type, concentration and degree of fixation of the used active ingredient onto the pre-modified substrate. Functionalized samples loaded with mixed active ingredients demonstrated a high durability to wash even after 15 washing cycles.

Research paper thumbnail of Eco-Friendly Surface Modification and Multifunctionalization of Cotton Denim Fabric

Egyptian Journal of Chemistry

Research paper thumbnail of Eco-friendly modification and antibacterial functionalization of viscose fabric

The Journal of The Textile Institute, 2016

Pretreatment of viscose fabric with monochlorotraizinyl β-cyclodextrin (MCT-βCD), as an eco-frien... more Pretreatment of viscose fabric with monochlorotraizinyl β-cyclodextrin (MCT-βCD), as an eco-friendly modifying agent, is accompanied by creation of hosting nanocavities onto the cellulose structure thereby enabling inclusion of certain antibacterial agents namely triclosan, as a classic agent, and AgNO 3 , as well as bioactive agents like green tea extract and Aloe vera gel. The efficiency of hosting the nominated antibacterial agents to confer antibacterial functionality is governed by the type of modification method and follows the decreasing order: exhaustion > pad-steam fixation > pad-dry-cure. The imparted antibacterial functionality of MCT-βCD-loaded fabric samples is determined by type of the hosted antibacterial agent into cavities of βCD and follows the decreasing order: AgNO 3 > green tea extract > triclosan > Aloe vera gel. Nitrogen content analysis, FTIR spectra, SEM image and EDX spectrum of Ag-loaded fabric sample confirmed the impact of suggested treatment sequence on the chemical and surface properties of the functionalized viscose fabric. The results also demonstrate that the imparted antibacterial activity against S. aureus (G+ve) and E. coli (G−ve) bacteria slightly decreased after 15 washing cycles.

Research paper thumbnail of A new approach for imparting durable multifunctional properties to linen-containing fabrics

Carbohydrate Polymers, 2017

This study focused on upgrading the antibacterial activity, UV-protection property, self-cleaning... more This study focused on upgrading the antibacterial activity, UV-protection property, self-cleaning ability and durability to wash of linen and linen/cotton (50/50) blend fabrics to develop multifunctional textile materials without adversely affecting their hydrophilicity. Herein, linen-containing fabrics were first pre-carboxymethylated to create new active sites (-CH2COOH groups) to facilitate subsequent loading of selected active ingredients namely chitosan (Cs), organosilane quaternary ammonium compound (Si-QAC), silver-nanoparticles (Ag-NPs) and titanium oxide nanoparticles (TiO2-NPs) individually and in admixtures. The developed products, especially in case of using mixed active ingredients, exhibit a noticeable improvement in the imparted functional properties regardless of the used substrate. The effectiveness of the imparted functions is determined by type of substrate, its extent of modification, type, concentration and degree of fixation of the used active ingredient onto the pre-modified substrate. Functionalized samples loaded with mixed active ingredients demonstrated a high durability to wash even after 15 washing cycles.

Research paper thumbnail of Biomedical Applications of Organic Nanofillers in Polymers

CRC Press eBooks, Jul 12, 2023

Research paper thumbnail of Environmentally Sound Approach for Fabrication of Antibacterial/Anti-UV/Anti-crease and Fragrant Denim Fabrics

Egyptian Journal of Chemistry, Nov 14, 2021

Research paper thumbnail of Development of functionalized cellulose/wool blended fabrics for high performance textiles

The Journal of The Textile Institute, 2017

Recently, increasing demands for high quality, high value-added, durable, safe and eco-friendly f... more Recently, increasing demands for high quality, high value-added, durable, safe and eco-friendly functional cellulose/wool blended fabrics have stimulated intensive research and development efforts. Therefore, the main goal of the present work was to develop new functional finishing formulations using citric acid/ sodium hypophosphite (CA/SHP) cross-linking system along with certain bio-active agents based on triclosan, choline chloride, organosilane quaternary compound or chitosan to get anticrease/antibacterial bi-functionalized blends. Also, CA/SHP and bio-active agent based on AgCl/TiO 2 finishing formulation was used to impart anti-crease/anti-bacterial/anti-UV multifunctionalities to the treated fabrics. Type and extent of improvement as well as durability to wash of the imparted function were governed by chemical composition and concentration of the active-additive as well as nature and extent of modification of the treated substrates. SEM images and EDX spectra of some samples were reported. In addition, the tentative reaction mechanisms were also discussed.

Research paper thumbnail of Single-stage process for bifunctionalization and eco-friendly pigment coloration of cellulosic fabrics

The Journal of The Textile Institute, 2015

A facile single-stage process for enhancing the antibacterial activity and UV-shielding property ... more A facile single-stage process for enhancing the antibacterial activity and UV-shielding property of cotton and viscose pigment prints was reported. Results indicated that both the functional and coloration properties of the obtained pigment prints were improved significantly by incorporation of TiO2 nano sol (average molecular size ≈5 nm, 15 g/kg) into the solvent-free pigment printing pastes. Differences in the imparted antibacterial activity and UV-blocking properties as well as in the depth of the modified pigment prints were attributed to the differences in the type of cellulosic substrate, efficiency of the used binding agent, extent of loading, and immobilizing both the TiO2-NPs and pigment particles during the microwave-fixation step as well as on the type of pigment colorant. Also, the obtained results demonstrated that the modified pigment prints, i.e. TiO2-NPs-loaded pigment prints, showed durable antibacterial efficacy and UV-shielding capacity even after 15 washing cycle...

Research paper thumbnail of リネン含有布への耐久性のある多機能特性を付与するための新しいアプローチ【Powered by NICT】

Carbohydrate Polymers, 2017

Research paper thumbnail of Green synthesized chitosan and ZnO nanoparticles for sustainable use in multifunctionalization of cellulosic fabrics

Polymer Bulletin

A green sustainable strategy for biosynthesis of ZnONPs and chitosan nanoparticles (ZnONPs: 20–25... more A green sustainable strategy for biosynthesis of ZnONPs and chitosan nanoparticles (ZnONPs: 20–25 nm and CSNPs: 70–90 nm) has been developed, their potential applications in multifunctional finishing of cotton and viscose fabrics to impart anti-crease, anti-UV and antibacterial functions using citric acid/Na-hypophosphite CA (15 g/L)/SHP (15 g/L), as CH2O-free ester-crosslinking system and the pad-dry-cure method. The obtained results signify that the extent of improvement in the imparted functional properties is governed by type of cellulosic substrate, kind and concentration of nano-additive as well as type of bio-functional additive, namely, L-ascorbic acid or vanillin (20 g/L each). Moreover, the best results show that using CSNPs (2.5 g/L)/ZnONPs (15 g/L), as an eco-friendly two component mixture, brought about an enhancement in both chemical and functional properties of treated substrates which can be ranked as follows: nitrogen content (N%): viscose (1.818) > cotton (1.592...

Research paper thumbnail of Development of eco-friendly colored/multifunctionalized cellulose/polyester blended fabrics using plasma preactivation and subsequent coloration/multifunctionalization in single stage

Polymer Bulletin

A new green approach was developed in the present study to pre-activate and modify the cellulose/... more A new green approach was developed in the present study to pre-activate and modify the cellulose/polyester blended fabrics surfaces using atmospheric plasma, as a green alternative to non-eco-friendly conventional chemical modification processes, followed by post-dyeing/functional finishing to obtain high value-added, multifunctional, protective and colored blended fabrics. The obtained results demonstrated that the imparted antibacterial and anti-UV functional properties and the increase in color strength are greatly improved owing to plasma pre-modification step. Type of plasma gas, O2− or N2−, blended substrate, cotton/polyester (C/PET) or viscose/polyester (V/PET), kind of coloring agent: pigment, basic dye or curcumin natural dye, as well as the chemical nature of functional additive: thyme oil, clove oil, lavender, tulsi, ginger, vanillin, ascorbic acid or salicylic acid, ZnO − or Al2O3− NPs have a significant impact on extent of coloration and bi-functionalization of the fina...

Research paper thumbnail of Potential Applications of Sustainable Polymers in Functionalization of Cellulosic Textile Materials

Processing and Applications, 2015

Research paper thumbnail of Environmentally Sound Approach for Fabrication of Antibacterial/Anti-UV/Anti-crease and Fragrant Denim Fabrics

Egyptian Journal of Chemistry, 2021

Research paper thumbnail of A Green Approach for Modification and Functionalization of Wool Fabric Using Bio- and Nano-Technologies

In the present work, we propose a green and sustainable strategy for eco-friendly surface modific... more In the present work, we propose a green and sustainable strategy for eco-friendly surface modification of wool structure using biosynthesized kerationlytic proteases, from C4-ITA-EGY, Streptomyces harbinensis S11-ITA-EGY and Streptomyces carpaticus S33-ITA-EGY, followed by subsequent environmentally sound functionalization of the bio-treated substrates using ZnONPs, ZrO2NPs, ascorbic acid and vanillin, individually, to impart durable antibacterial and UV-protection properties. The changes in surface modification, and the extent of functionalization of the final products were characterized by SEM, EDX, antibacterial efficacy, UV-blocking ability, loss in weight, nitrogen content and durability to wash analysis. The obtained data reveals that, the developed green wool fabrics exhibit outstanding durable antibacterial activity and UV-blocking ability for fabricating multi-functional textile products can be utilized in a wide range of sustainable protective textiles, irrespective of the...

Research paper thumbnail of Biosynthesis, optimization and potential textile application of fungal cellulases/xylanase multifunctional enzyme preparation from <i>Penicillium</i> sp. SAF6

The main task of the present work is to search for fungal strains isolated from agricultural soil... more The main task of the present work is to search for fungal strains isolated from agricultural soil with the potential to produce cellulases/xylanase enzyme preparation for bio-finishing of textiles. The most potent fungal strain (SAF6) was subjected to molecular identification using 18 SrRNA and was identified as <i>Penicillium</i> sp. SAF6 with the novel accession number of KM222497. Factors affecting the produced mixed enzyme activity were investigated. The optimum conditions for achieving maximum activity of the cellulases (FPase, CMCase and β-glucosidase) in addition to xylanase were the initial culture pH media 5, yeast extract (1.5gN/L), medium-to-air ratio (1:5) for FPase and CMCase and (1:10) for β-glucosidase, at 30 °C for 8 days incubation period. Potential application of the prepared crude enzyme in bio-finishing of cellulosic substrates, namely, bleached cotton, linen and indigo dyed fabrics were explored. Using the multi-component enzyme at appropriate dosage...

Research paper thumbnail of Sustainable textile finishing processes and pollution control based on enzyme technology

Green Chemistry for Sustainable Textiles, 2021

Abstract The intensive use of fresh water, nonrenewable energy, and nonbiodegradable hazardous ch... more Abstract The intensive use of fresh water, nonrenewable energy, and nonbiodegradable hazardous chemicals along with subsequent generation of hazardous wastes in traditional textile wet processing industry have serious negative impacts on product quality, eco-system, as well as human health. Currently, the adoption and implementation of enzyme technology, as one of the most rapidly promising/growing and green technologies, in textile wet processing, have been enforced to assure economic and environmental improvements along with social responsibility, i.e., sustainable development. This chapter will deal with: developments in production methods of bioprocessing textile enzymes, optimal conditions for attaining high activity/functionality and stability, their potential applications in textile wet processing on natural and/or manmade fibers and their utilization in pollution control, source reduction and/or end-of-pipe treatments. Future prospects to develop more efficient bioprocessing of textiles, to produce high value-added textile products, as well as to minimize the environmental footprint will be highlighted.

Research paper thumbnail of The potential use of nanotechnology for antimicrobial functionalization of cellulose-containing fabrics

Green Chemistry for Sustainable Textiles, 2021

Currently, a wide range of antimicrobial agents are available and used to inhibit the growth or k... more Currently, a wide range of antimicrobial agents are available and used to inhibit the growth or kill the pathogenic microorganisms for preventing the cross-infection and inhibiting the spread of infectious diseases, counteracting the development of unpleasant odor, and/or protecting the textile materials from damage due to the microbial attack. Recently, there has been an increased interest in replacing the non-eco-friendly antimicrobial agents and nonsustainable application techniques with eco-friendly sustainable ones for fabricating high performance and function textile materials to meet both the consumer needs for hygienic clothing, as well as textile ecology aspects, namely, production, human, and disposal ecology. This chapter highlights the advantages of using nanotechnology and nanostructured materials in antimicrobial and hygiene finishes of cellulose-containing textiles. Classification of the major antimicrobial agents based on nano-sized materials, preparation and applica...

Research paper thumbnail of Functional nanofibers: fabrication, functionalization, and potential applications

Incorporation of nanomaterials and nanotechnology as emerging technology into production of texti... more Incorporation of nanomaterials and nanotechnology as emerging technology into production of textile materials facilitates the upgrading of existing textile performance properties, enables the development of innovative textile materials as well as creates high value-added products with remarkable functionalities. A number of materials at the nano dimensions have been developed such as nanofibers, carbon tubes, and nanoparticles (e.g., nobel metal and metal oxide, etc.). This chapter discusses fabrication of nanofibers using electrospinning, functionalization of the fabricated nanofibers using different techniques, evaluation of the imparted functional properties, as well as potential applications of the produced functional nanofibers. Finally, recent progress, future developments, and environmental concerns are highlighted.

Research paper thumbnail of Multifunctional cellulose-containing fabrics using modified finishing formulations

RSC Adv., 2017

High performance functional cellulose-containing fabrics were prepared by including ZrO–NPs, ZnO–... more High performance functional cellulose-containing fabrics were prepared by including ZrO–NPs, ZnO–NPs and TiO2–NPs into traditional finishing formulations.