Nano-bio finishing of cotton fabric with quaternized chitosan Schiff base-TiO2-ZnO nanocomposites for antimicrobial and UV protection applications

Refaee, Ayaat A.; El‐Naggar, Mehrez E.; Mostafa, Tahia B.; Elshaarawy, Reda F.M.; Nasr, Ali M.

doi:10.1016/j.eurpolymj.2022.111040

Cited by 50 publications

(20 citation statements)

References 37 publications

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“…A set of successive physicochemical processes have been used to fabricate the olive oil-based hydrogel-thickened nanoemulsion (OOHTN). Initially, as depicted in Scheme 1 , chitin was extracted from the squid pen wastes using our routine extraction protocol (demineralization (DM) followed by deproteinization (DP)) [ 33 ] and then subjected to ultrasound-assisted deacetylation (UDA) process to obtain ultrasound-assisted deacetylated chitosan (UCS). After that, ultrasound-assisted oxidative degradation (UOD) of UCS was performed to obtain low-molecular-weight chitosan (LMWUCS).…”

Section: Resultsmentioning

confidence: 99%

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Quaternized Chitosan Thiol Hydrogel-Thickened Nanoemulsion: A Multifunctional Platform for Upgrading the Topical Applications of Virgin Olive Oil

et al. 2022

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(1) Background: Virgin olive oil (VOO) has attracted the attention of many researchers due to its nutritional and medicinal values. However, VOO’s biological applications have been limited due to a lack of precise chemical profiling and approach to increase the physicochemical characteristics, bioactivity, and delivery of its bioactive components; (2) Methods: The current study intended to evaluate the chemical composition of VOO using the GC-MS technique and determine its major components. Furthermore, the effect of incorporating VOO into Tween 80-lecithin nanoemulsion (OONE) and a quaternized trimethyl chitosan-thiol (TMCT) hydrogel-thickened nanoemulsion system (OOHTN) on its physicochemical characteristics and biological potentials will be investigated; (3) Results: The VOO-based NEs’ physicochemical properties (particle size and zeta potential) were steady during storage for four weeks owing to the inclusion of the protective TMCT hydrogel network to OONE. Excessive fine-tuning of olive oil nanoemulsion (OONE) and the TMCT protective network’s persistent positive charge have contributed to the oil’s improved antimicrobial, anti-biofilm, and antioxidant potentials; (4) Conclusions: The Tween 80-lecithin-TMCT nanosystem might provide a unique and multifunctional nanoplatform for efficient topical therapy as well as the transdermal delivery of lipophilic bioactive compounds.

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Section: Resultsmentioning

confidence: 99%

“…(demineralization (DM) followed by deproteinization (DP)) [33] and then subjected t ultrasound-assisted deacetylation (UDA) process to obtain ultrasound-assisted deacety lated chitosan (UCS). After that, ultrasound-assisted oxidative degradation (UOD) o UCS was performed to obtain low-molecular-weight chitosan (LMWUCS).…”

Section: Formation Chemistrymentioning

confidence: 99%

Quaternized Chitosan Thiol Hydrogel-Thickened Nanoemulsion: A Multifunctional Platform for Upgrading the Topical Applications of Virgin Olive Oil

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“…[3][4][5] One of these methods is the use of metal oxide nanoparticles, such as silver nanoparticles, zinc oxide nanoparticles, and titanium oxide nanoparticles. [6][7][8] The characteristics mainly targeted to improve the cotton fabric are its antibacterial properties and UV protection. Nowadays, ZnO nanoparticles are being preferred to improve such properties, as these particles are non-toxic in nature and exhibit diverse chemical, physical, and biological properties.…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted synthesis of Ag/ZnO nanoparticles usingAverrhoa carambolafruit extract as the reducing agent and their application in cotton fabrics with antibacterial and UV-protection properties

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“…CS possesses diverse activities such as biocompatibility, biodegradability, nontoxicity, anti-inflammatory, antihypertensive, and antimicrobial behavior [9][10][11]. In addition, it showed great potential applications in drug delivery systems, agriculture, textiles, food, medical, and cosmetic industries [12][13][14][15]. The crosslinking of CS was performed through its hydroxyl groups with EPCH after protection of amino groups with benzaldehyde to form the corresponding Schiff base polymers for metal removal and dye adsorption applications [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and biological activities of new conjugates of Guanosine grafted on polyvinyl alcohol, carbohydrate chitosan, and cellulose

et al. 2022

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Guanosine (GU) is a purine nucleoside that has different biological applications. This study aimed to synthesize, characterize, and enhance the biological activities of GU through its covalently grafting on polyvinyl alcohol (PVA), chitosan (CS), and cellulose (CL). In this regard, the conjugation was constructed by different linkers such as chloroacetyl chloride, 2-bromopropionyl bromide, and epichlorohydrin (EPCH). The resulted novel conjugates were characterized by FT-IR, 1H-NMR, GPC, and TGA techniques. FT-IR spectra revealed the main characteristic groups, O–H, N–H, C=O and C=N of GU moieties. Furthermore, 1H-NMR spectra showed the aromatic C–H, O–H, and N–H protons of the grafted GU moieties. Two decomposition stages of grated polymers with high thermal stability are illustrated by TGA. GU showed no antifungal activity against Aspergillus fumigatus and Candida albicans. However, its conjugates: P-1A, P-1B, P-2A, P-2B, P-3A, and P-3B displayed significant antifungal effect with inhibitory zones in the range 8–11 mm. As compared to GU group, most of GU-polymer conjugates showed significant in vivo antitumor activity against EAC-bearing mice via the reduction in total tumor volume. In summary, these conjugates are biologically active macromolecules and may act as candidate carrier systems for other applications such as drug delivery.

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Nano-bio finishing of cotton fabric with quaternized chitosan Schiff base-TiO2-ZnO nanocomposites for antimicrobial and UV protection applications

Cited by 50 publications

References 37 publications

Quaternized Chitosan Thiol Hydrogel-Thickened Nanoemulsion: A Multifunctional Platform for Upgrading the Topical Applications of Virgin Olive Oil

Quaternized Chitosan Thiol Hydrogel-Thickened Nanoemulsion: A Multifunctional Platform for Upgrading the Topical Applications of Virgin Olive Oil

Microwave-assisted synthesis of Ag/ZnO nanoparticles usingAverrhoa carambolafruit extract as the reducing agent and their application in cotton fabrics with antibacterial and UV-protection properties

Synthesis, characterization, and biological activities of new conjugates of Guanosine grafted on polyvinyl alcohol, carbohydrate chitosan, and cellulose

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