Physicochemical characterization of silver nanoparticles synthesize using Aloe Vera (Aloe barbadensis)

Kuponiyi, Abiola John; Kassama, Lamin S.; Kukhtareva, T.

doi:10.1117/12.2062170

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…Further structural analysis of the AV-TeNPs was carried out by FT-IR spectroscopy. Most of the bands observed in the FT-IR spectrum ( Figure 2 and Table 1 ) correspond to the functional groups of the most representative phytochemical constituents found in the AV extract, including polysaccharides (e.g., acemannam, galactan, and pectin), proteins, vitamins, enzymes, organic acids, phenolic substances, phytosterol, flavones, organic acids, and quinones [ 55 , 56 , 57 ]. The broad band at 3280 cm −1 is assigned to the stretching mode of the –OH group from alcohols and phenols.…”

Section: Resultsmentioning

confidence: 99%

Aloe Vera-Mediated Te Nanostructures: Highly Potent Antibacterial Agents and Moderated Anticancer Effects

et al. 2021

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Cancer and antimicrobial resistance to antibiotics are two of the most worrying healthcare concerns that humanity is facing nowadays. Some of the most promising solutions for these healthcare problems may come from nanomedicine. While the traditional synthesis of nanomaterials is often accompanied by drawbacks such as high cost or the production of toxic by-products, green nanotechnology has been presented as a suitable solution to overcome such challenges. In this work, an approach for the synthesis of tellurium (Te) nanostructures in aqueous media has been developed using aloe vera (AV) extracts as a unique reducing and capping agent. Te-based nanoparticles (AV-TeNPs), with sizes between 20 and 60 nm, were characterized in terms of physicochemical properties and tested for potential biomedical applications. A significant decay in bacterial growth after 24 h was achieved for both Methicillin-resistant Staphylococcus aureus and multidrug-resistant Escherichia coli at a relative low concentration of 5 µg/mL, while there was no cytotoxicity towards human dermal fibroblasts after 3 days of treatment. AV-TeNPs also showed anticancer properties up to 72 h within a range of concentrations between 5 and 100 µg/mL. Consequently, here, we present a novel and green approach to produce Te-based nanostructures with potential biomedical applications, especially for antibacterial and anticancer applications.

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Section: Resultsmentioning

confidence: 99%

Aloe Vera-Mediated Te Nanostructures: Highly Potent Antibacterial Agents and Moderated Anticancer Effects

et al. 2021

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“…These techniques include a wide range of natural precursors, such as plant extracts, bacteria, and enzymes [ 37 ]. Specifically, the use of plant extracts for nanoparticle synthesis is potentially advantageous over microorganisms due to the cost of the cultures, short production times, biohazards, and ability to increase production volumes [ 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Iron, Zinc, and Manganese Nanofertilizers, Using Andean Blueberry Extract, and Their Effect in the Growth of Cabbage and Lupin Plants

et al. 2022

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The predominant aim of the current study was to synthesize the nanofertilizer nanoparticles ZnO_MnO-NPs and FeO_ZnO-NPs using Andean blueberry extract and determine the effect of NPs in the growth promotion of cabbage (Brassica oleracea var. capitata) and Andean lupin (Lupinus mutabilis sweet) crops. The nanoparticles were analyzed by visible spectrophotometry, size distribution (DLS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Solutions of nanoparticle concentrations were applied to cabbage, with solutions of 270 and 540 ppm of ZnO_MnO-NPs and 270 and 540 ppm of FeO_ZnO-NPs applied to Andean lupin. Zinc was used in both plants to take advantage of its beneficial properties for plant growth. Foliar NPs sprays were applied at the phenological stage of vegetative growth of the cabbage or Andean lupin plants grown under greenhouse conditions. The diameter of the NPs was 9.5 nm for ZnO, 7.8 nm for FeO, and 10.5 nm for MnO, which facilitate the adsorption of NPs by the stomata of plants. In Andean lupin, treatment with 270 ppm of iron and zinc indicated increases of 6% in height, 19% in root size, 3.5% in chlorophyll content index, and 300% in leaf area, while treatment with 540 ppm of iron and zinc yielded no apparent increases in any variable. In cabbage, the ZnO_MnO-NPs indicate, at a concentration of 270 ppm, increases of 10.3% in root size, 55.1% in dry biomass, 7.1% in chlorophyll content, and 25.6% in leaf area. Cabbage plants treated at a concentration of 540 ppm produced increases of 1.3% in root size and 1.8% in chlorophyll content, compared to the control, which was sprayed with distilled water. Therefore, the spray application of nanofertilizers at 270 ppm indicated an important improvement in both plants’ growth.

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Effect of Laser Ablation on the Physicochemical Properties of Microwave-Assisted Synthesized AgNP in Aloe Vera (Aloe Barbadensis) Extract

Kassama¹,

Kuponiyi²,

Kukhtareva³

2017

ACES

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Biosynthesis of silver nanoparticles (AgNP) using biomolecular extracts of plant origin is of interest to many researchers because of their potential to produced stable product. It is hypothesized that laser ablation of the AgNP in solution will enhance the biomolecules such as aliphatic amines, alkenes (=C-H), alkanes (C-H), alcohol (O-H) and unsaturatedesters (C-O) in the Nano emulsion. Hence, the objective of this study was to evaluate the effect of laser oblation on the physicochemical properties and stability of AgNP reduced with Aloe vera (Aloe barbadensis). Experiments were conducted with the pre-made AgNP were subjected to the three laser oblation treatments: 1) Control no laser treatment of AgNP, 2) Laser ablation treatment for 5 minutes and 3) Laser ablation treatment for 10 minutes. The results of the analysis show that laser oblation treatment has significant effect (p < 0.01) on the concentration of AgNP. The intensity of the absorption peak significantly (p < 0.01) increases with laser exposure time. While 214 ppm was observed with no laser treatment, 224 and 229 ppm increase of concentration was observed when laser treated for 5 and 10 min. The rates of reaction of restructuring the particles sizes were 0.384, 0.408 and 0.4288 min −1 at different laser exposure treatments times 0, 5 and 10 min, respectively. The FTIR results show significant (p < 0.05) increase in biomolecules concentration of aliphatic amines, alkenes (=C-H), alkanes (C-H), alcohol (O-H) and unsaturatedesters (C-O).

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Physicochemical characterization of silver nanoparticles synthesize using Aloe Vera (Aloe barbadensis)

Cited by 3 publications

References 26 publications

Aloe Vera-Mediated Te Nanostructures: Highly Potent Antibacterial Agents and Moderated Anticancer Effects

Aloe Vera-Mediated Te Nanostructures: Highly Potent Antibacterial Agents and Moderated Anticancer Effects

Synthesis of Iron, Zinc, and Manganese Nanofertilizers, Using Andean Blueberry Extract, and Their Effect in the Growth of Cabbage and Lupin Plants

Effect of Laser Ablation on the Physicochemical Properties of Microwave-Assisted Synthesized AgNP in Aloe Vera (Aloe Barbadensis) Extract

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