Multiple Applications of CdS/TiO2 Nanocomposites Synthesized via Microwave-Assisted Sol–Gel

Abdelmoneim, Hossam E. M.; Wassel, Magdy A.; Elfeky, Ahmed S.; Bendary, Samar H.; Awad, Mohamed A.; Salem, Salem S.; Mahmoud, Sawsan A.

doi:10.1007/s10876-021-02041-4

Cited by 33 publications

(12 citation statements)

References 57 publications

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“…Nanoparticles (NPs) are a diverse class of materials that appeal to several researchers due to their tiny size (1-100 nm), exceptional properties, large surface area, enhanced reactivity, capacity to access the body easily, and multiple uses in modern science, including the industrial and medicinal sciences [13][14][15][16][17][18][19][20]. Selenium, silver, copper, magnesium, zinc, and titanium are some of the nanoparticles that have been reported [21][22][23][24][25][26][27][28][29][30]. AgNPs are widely utilized nanoparticles in numerous sectors of study, such as optical devices, ophthalmology, pharmaceutical, and the health sciences, for the creation of drug carriers, chemotherapeutic, nano-sensors, gene therapy, and other applications [31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Pseudomonas indica-Mediated Silver Nanoparticles: Antifungal and Antioxidant Biogenic Tool for Suppressing Mucormycosis Fungi

Salem

Ali

Reyad

et al. 2022

JoF

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Mucormycosis is considered one of the most dangerous invasive fungal diseases. In this study, a facile, green and eco-friendly method was used to biosynthesize silver nanoparticles (AgNPs) using Pseudomonas indica S. Azhar, to combat fungi causing mucormycosis. The biosynthesis of AgNPs was validated by a progressive shift in the color of P. indica filtrate from colorless to brown, as well as the identification of a distinctive absorption peak at 420 nm using UV-vis spectroscopy. Fourier-transform infrared spectroscopy (FTIR) results indicated the existence of bioactive chemicals that are responsible for AgNP production. AgNPs with particle sizes ranging from 2.4 to 53.5 nm were discovered using transmission electron microscopy (TEM). Pattern peaks corresponding to the 111, 200, 220, 311, and 222 planes, which corresponded to face-centered cubic forms of metallic silver, were also discovered using X-ray diffraction (XRD). Moreover, antifungal activity measurements of biosynthesized AgNPs against Rhizopus Microsporus, Mucor racemosus, and Syncephalastrum racemosum were carried out. Results of antifungal activity analysis revealed that the biosynthesized AgNPs exhibited outstanding antifungal activity against all tested fungi at a concentration of 400 µg/mL, where minimum inhibitory concentrations (MIC) were 50, 50, and 100 µg/mL toward R. microsporus, S. racemosum, and M. racemosus respectively. In addition, the biosynthesized AgNPs revealed antioxidant activity, where IC50 was 31 µg/mL when compared to ascorbic acid (0.79 µg/mL). Furthermore, the biosynthesized AgNPs showed no cytotoxicity on the Vero normal cell line. In conclusion, the biosynthesized AgNPs in this study can be used as effective antifungals with safe use, particularly for fungi causing mucormycosis.

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Section: Introductionmentioning

confidence: 99%

Pseudomonas indica-Mediated Silver Nanoparticles: Antifungal and Antioxidant Biogenic Tool for Suppressing Mucormycosis Fungi

Salem

Ali

Reyad

et al. 2022

JoF

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“…[3][4][5][6][7][8][9][10][11][12][13] An emerging research field based on investigating the special characteristics such as size, shape, and distribution of NPs using nanotechnology procedures has been developed recently. [14][15][16][17][18][19][20][21][22][23] Inorganic nanoparticles, whose geometries exhibit fundamentally innovative and improved mechanical, chemical, and biological properties and functioning due to their nanoscale size, have sparked a lot of attention during the last few decades. [24][25][26][27][28] Metal-oxide nanoparticles have recently received a lot of attention because of their capacity to cause cell death in prokaryotes and eukaryotes.…”

Section: Introductionmentioning

confidence: 99%

Green and ecofriendly biosynthesis of selenium nanoparticles using Urtica dioica (stinging nettle) leaf extract: Antimicrobial and anticancer activity

Hashem

Salem

2021

Biotechnology Journal

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Background/Goal/Aim: Plant extract is affordable and does not require any particular conditions; rapid production of nanoparticles using plants offers more advantages than other approaches. Selenium nanoparticles (SeNPs) have received much attention in the last decade due to SeNPs diverse and different applications. Herein, this study aimed to biosynthesize SeNPs using aqueous extract of Urtica dioica leaf through green and ecofriendly method. Moreover to fully characterize SeNPs using different techniques, and to evaluate it for antimicrobial activity as well as anticancer activity.Main Methods and Major Results: SeNPs were biosynthesis using aqueous leaf extract of U. dioica (stinging nettle). The biosynthesized SeNPs were characterized using UV-visible spectroscopy (UV-Vis), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive electron spectroscopy (EDX), transmission electron microscopy (TEM), and thermalgravimetric analysis (TGA). Antimicrobial and anticancer activities of biosynthesized SeNPs were assessed. Results illustrated that SeNPs exhibited promising antibacterial activity against Gram-positive and Gram-negative bacteria, as well as unicellular and multi-cellular fungi. Moreover, minimal-inhibitory concentration (MIC) of

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“…Nanoparticles have been successfully used to reduce bacterial and fungal infections in medicine, pharmaceuticals, and agriculture fields [ 14 , 15 , 16 , 17 ]. Nanomaterials such as gold, silver, copper, selenium, titanium, zinc oxide, and magnesium oxide have antimicrobial activity against human pathogenic bacteria and fungi [ 18 , 19 , 20 , 21 ]. Among them, gold nanoparticles are considered one of the most commonly used metals for biomedical applications due to their unique properties, such as adjustable size, shape, surface properties, optical properties, biocompatibility, low cytotoxicity, and high stability [ 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Chitosan-Based Gold Nanoparticles: Antimicrobial and Wound-Healing Activities

et al. 2022

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The global spread of multidrug-resistant bacteria has become a significant hazard to public health, and more effective antibacterial agents are required. Therefore, this study describes the preparation, characterization, and evaluation of gold nanoparticles modified with chitosan (Chi/AuNPs) as a reducing and stabilizing agent with efficient antimicrobial effects. In recent years, the development of an efficient and ecofriendly method for synthesizing metal nanoparticles has attracted a lot of interest in the field of nanotechnology. Colloidal gold nanoparticles (AuNPs) were prepared by the chemical reduction of gold ions in the presence of chitosan (Chi), giving Chi/AuNPs. The characterization of Chi/AuNPs was carried out by transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier-transform infrared (FTIR), and X-ray diffraction (XRD). Chi/AuNPs appeared spherical and monodispersed, with a diameter ranging between 20 to 120 nm. The synergistic effects of AuNPs and Chi led to the disruption of bacterial membranes. The maximum inhibitory impact was seen against P. aeruginosa at 500 µg/mL, with a zone of inhibition diameter of 26 ± 1.8 mm, whereas the least inhibitory effect was reported for S. aureus, with a zone of inhibition diameter of 16 ± 2.1 mm at the highest dose tested. Moreover, Chi/AuNPs exhibited antifungal activity toward Candida albicans when the MIC was 62.5 µg/mL. Cell viability and proliferation of the developed nanocomposite were evaluated using a sulphorhodamine B (SRB) assay with a half inhibitory concentration (IC50) of 111.1 µg/mL. Moreover, the in vitro wound-healing model revealed that the Chi/AuNP dressing provides a relatively rapid and efficacious wound-healing ability, making the obtained nanocomposite a promising candidate for the development of improved bandage materials.

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Multiple Applications of CdS/TiO2 Nanocomposites Synthesized via Microwave-Assisted Sol–Gel

Cited by 33 publications

References 57 publications

Pseudomonas indica-Mediated Silver Nanoparticles: Antifungal and Antioxidant Biogenic Tool for Suppressing Mucormycosis Fungi

Pseudomonas indica-Mediated Silver Nanoparticles: Antifungal and Antioxidant Biogenic Tool for Suppressing Mucormycosis Fungi

Green and ecofriendly biosynthesis of selenium nanoparticles using Urtica dioica (stinging nettle) leaf extract: Antimicrobial and anticancer activity

Synthesis of Chitosan-Based Gold Nanoparticles: Antimicrobial and Wound-Healing Activities

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