Value-adding to dragon fruit (<i>Hylocereus polyrhizus</i>) peel biowaste: green synthesis of ZnO nanoparticles and their characterization

Aminuzzaman, Mohammod; Ng, Pei Sian; Goh, Wee Sheng; Ogawa, Seiji; Watanabe, Akira

doi:10.1080/24701556.2019.1661464

Cited by 33 publications

(8 citation statements)

References 63 publications

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“…The ZnO NPs synthesized with the P. granatum peel extract showed a specific peak at 350 nm (Fig. 2(a)), which was compared with other ZnO NPs produced by fruit peel, extracts (Table 1) [23][24][25][26][27]. Furthermore, the UV-Vis spectrum of pomegranate peel extract showed a peak at 379 nm, which previous studies have defined as an indication of phenolic compounds present in the pomegranate peel extract [22].…”

Section: Uv-vismentioning

confidence: 67%

Biosynthesis of Zinc Oxide Nanoparticles Using Punica granatum L. Waste Peel Extract, and Assessment of Antioxidant and Catalytic Activity

Meshkatalsadat,

Momeni,

Abdollahzadeh

2023

Nano Biomedicine and Engineering

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Green synthesis assisted by plant extracts is a recent research focus in diverse branches of chemistry. Through simple synthesis, different nanoparticles (NPs) can be produced that include oxides of zinc, copper, magnesium, or silver using various types of plant extracts. A remarkable attribute of plant aqueous extracts is their capability to act as reducing and capping agents. This study assessed the antioxidant and catalytic properties of phytosynthesized zinc oxide (ZnO) NPs using the fresh aqueous extract of pomegranate (Punica granatum) peel. Scanning electron microscopy indicated that the produced NPs had an average size of 49.52 nm with a spherical shape. X-ray diffraction confirmed the hexagonal phase of ZnO NPs and that their average crystallite size was 41.23 nm according to the Scherrer equation. Analysis of the ultraviolet-visible spectrum was performed to confirm the formation of ZnO NPs, and Fourier transform-infrared analysis illustrated the presence of diverse phytochemicals in the plant extract and ZnO NPs. The 2,2-diphenyl-1-picrylhydrazyl assay was used to determine the radical scavenging activity of these NPs. The novel ZnO phyto-nanocatalyst mediated by extracts from plant waste material, exhibited a well-defined reduction of methylene blue dye. Within 20 min, the catalytic degradation of methylene blue was completed, demonstrating that ZnO NPs have excellent catalytic properties.

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Section: Uv-vismentioning

confidence: 67%

Biosynthesis of Zinc Oxide Nanoparticles Using Punica granatum L. Waste Peel Extract, and Assessment of Antioxidant and Catalytic Activity

Meshkatalsadat,

Momeni,

Abdollahzadeh

2023

Nano Biomedicine and Engineering

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“…The values were in good agreement with the standard data (card no: 36-1451) [ 32 ]. The report illustrates that the prepared sample is hexagonal with space group P63mc [ 33 ]. The results confirmed that ZnO NPs were successfully formed.…”

Section: Resultsmentioning

confidence: 99%

Lepidium sativum Seed Extract-Mediated Synthesis of Zinc Oxide Nanoparticles: Structural, Morphological, Optical, Hemolysis, and Antibacterial Studies

Alnehia,

Al-Sharabi,

Al-Odayni

et al. 2023

Bioinorganic Chemistry and Applications

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Nanomaterials have unique physicochemical properties compared to their bulk counterparts. Besides, biologically synthesized nanoparticles (NPs) have proven superior to other methods. This work aimed to biosynthesize zinc oxide (ZnO) NPs using an aqueous extract of Lepidium sativum seed. The obtained ZnO NPs were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared, and ultraviolet-visible spectroscopy. The in vitro antibacterial activity of ZnO NPs against Gram-positive (S. aureus) and Gram-negative (E. coli) bacteria was assessed using the disk diffusion technique. The hemolytic impact was quantified spectrophotometrically. The results indicated a 24.2 nm crystallite size, a hexagonal structure phase, and a 3.48 eV optical bandgap. Antibacterial studies revealed a dose-dependent response with comparable activity to the standard drug (gentamicin) and higher activity against S. aureus than E. coli, e.g., the zone of inhibition at 120 mg/mL was 23 ± 1.25 and 16 ± 1.00 mm, respectively. The hemolysis assay showed no potential harm due to ZnO NPs toward red blood cells if utilized in low doses. As a result, it could be concluded that the reported biogenic method for synthesizing ZnO NPs is promising, resulting in hemocompatible NPs and comparable bactericidal agents.

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“…After the ultrasonication in a water bath for 5 min, a gel-like solution was formed. The CuO nanorods (NRs) were synthesized using a plant leaf extract as similar manner reported in previous papers [8,9]. The laser source was a continuous-wave (CW) 445 nm blue semiconductor laser (3 W).…”

Section: Methodsmentioning

confidence: 99%

Antenna Sensors Prepared by Laser Direct Writing Based on Graphene Hybrid Materials

Watanabe

Rahman

Cai

et al. 2020

J. Photopol. Sci. Technol.

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Formation of an antenna-type sensor by laser direct writing based on graphene hybrid materials for humidity and chemical sensing properties was studied. A meander line shaped dipole antenna was prepared by laser direct writing on a graphene oxide (GO)-CuO NRs hybrid film. Resonance peaks were observed at around 4.7 and 5.89 GHz showing the dependence on relative humidity (RH). The humidity increase from RH38 to RH100 caused a resonance peak shift from 5.89 to 5.85 GHz accompanying the increase of return loss from-17.76 to-34.07 GHz. A spiral antenna sensor consisting of GO-coated copper-carbon hybrid showed the resonance band shift depending on the dielectric constant of a chemical compound.

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Value-adding to dragon fruit (Hylocereus polyrhizus) peel biowaste: green synthesis of ZnO nanoparticles and their characterization

Cited by 33 publications

References 63 publications

Biosynthesis of Zinc Oxide Nanoparticles Using Punica granatum L. Waste Peel Extract, and Assessment of Antioxidant and Catalytic Activity

Biosynthesis of Zinc Oxide Nanoparticles Using Punica granatum L. Waste Peel Extract, and Assessment of Antioxidant and Catalytic Activity

Lepidium sativum Seed Extract-Mediated Synthesis of Zinc Oxide Nanoparticles: Structural, Morphological, Optical, Hemolysis, and Antibacterial Studies

Antenna Sensors Prepared by Laser Direct Writing Based on Graphene Hybrid Materials

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