Green synthesis of silver nanoparticles using plant leaf extraction of Artocarpus heterophylus and Azadirachta indica

Manik, U.P.; Nande, Amol; Raut, Swati; Dhoble, S.J.

doi:10.1016/j.rinma.2020.100086

Cited by 75 publications

(48 citation statements)

References 16 publications

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“…Respective diffractograms of the dried (and early separated and cleaned) AgNPs were acquired in the 2θ range from 20° to 80° by using a Cu–Kα radiation (λ = 1.54 Å) lamp. The Debye–Scherrer’s formula was applied to calculate the average crystallite size of the phytofabricated AgNPs as described previously [ 17 ].…”

Section: Methodsmentioning

confidence: 99%

Phytofabrication of Silver Nanoparticles (AgNPs) with Pharmaceutical Capabilities Using Otostegia persica (Burm.) Boiss. Leaf Extract

2021

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In the last years, the plant-mediated synthesis of nanoparticles has been extensively researched as an affordable and eco-friendly method. The current study confirms for the first time the capability of the Otostegia persica (Burm.) Boiss. leaf extract for the synthesis of silver nanoparticles (AgNPs). The phytofabricated AgNPs were characterized by ultraviolet–visible spectroscopy (UV-Vis), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), and zeta potential analysis. Moreover, the total phenolic and flavonoids contents, and the antioxidant, antibacterial, antifungal, and anti-inflammatory properties of the phytofabricated AgNPs and the O. persica leaf extract were assessed. The results showed that the produced AgNPs were crystalline in nature and spherical in shape with an average size of 36.5 ± 2.0 nm, and indicated a localized surface plasmon resonance (LSPR) peak at around 420 nm. The zeta potential value of −25.2 mV pointed that the AgNPs were stable. The phytofabricated AgNPs had lower total phenolic and flavonoids contents than those for the O. persica leaf extract. The abovementioned AgNPs showed a higher antioxidant activity as compared with the O. persica leaf extract. They also exhibited significant antibacterial activity against both Gram-positive (Staphylococcus aureus, Bacillus subtilis, and Streptococcus pyogenes) and Gram-negative (Escherichia coli, Pseudomonas aeruginosa, and Salmonella typhi) bacteria. In addition, appropriate antifungal effects with the minimum inhibitory concentration (MIC) values of 18.75, 37.5, and 75 µg mL−1 against Candida krusei, Candida glabrata, and Candida albicans, respectively, were noted for this new bionanomaterial. Finally, the phytofabricated AgNPs showed dose-dependent anti-inflammatory activity in the human red blood cell (RBC) membrane stabilization test, being higher than that for the O. persica leaf extract. The resulting phytofabricated AgNPs could be used as a promising antioxidant, antibacterial, antifungal, and anti-inflammatory agent in the treatments of many medical complications.

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Section: Methodsmentioning

confidence: 99%

Phytofabrication of Silver Nanoparticles (AgNPs) with Pharmaceutical Capabilities Using Otostegia persica (Burm.) Boiss. Leaf Extract

2021

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“…The actual mechanism and components that cause plant-mediated synthesized nanoparticles are still unknown (Drummer et al, 2021). Popular plant genera studied extensively for the biosynthesis of nanoparticles are Euphorbia (Elumalai et al, 2010), Ginkgo (Elumalai et al, 2010), Panax (Singh et al, 2016b), Cymbopogon (Ajayi and Afolayan, 2017), Azadirachta (Ahmed et al, 2016), Nigella (Amooaghaie et al, 2015), Cocos (Roopan et al, 2013), Catharanthus (Ahmad et al, 2020), Pistacia (Sadeghi et al, 2015), Nyctanthes (Sundrarajan and Gowri, 2011), Anogeissus (Kora et al, 2012), Abutilon (Mata et al, 2015), Pinus (Iravani and Zolfaghari, 2013), Artocarpus (Manik et al, 2020), Citrus (Sujitha and Kannan, 2013), Lawsonia (Naseem and Farrukh, 2015), Gardenia (Karade et al, 2019), Allium (Velsankar et al, 2020), Averrhoa (Isaac et al, 2013), Sinapis (Khatami et al, 2015), Cucurbita (Hu et al, 2019), Santalum (Swamy and Prasad, 2015), Carissa (Joshi et al, 2018), Avena (Amini et al, 2017), Piper (Paulkumar et al, 2014), Onosma (Doğan Çalhan and Gündoğan, 2020), and others.…”

Section: Synthesis Of Nanoparticles Using Plantsmentioning

confidence: 99%

Phyto-fabricated Nanoparticles and Their Anti-biofilm Activity: Progress and Current Status

Das

Ghosh

Nayak

2021

Front. Nanotechnol.

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Biofilm is the self-synthesized, mucus-like extracellular polymeric matrix that acts as a key virulence factor in various pathogenic microorganisms, thereby posing a serious threat to human health. It has been estimated that around 80% of hospital-acquired infections are associated with biofilms which are found to be present on both biotic and abiotic surfaces. Antibiotics, the current mainstream treatment strategy for biofilms are often found to be futile in the eradication of these complex structures, and to date, there is no effective therapeutic strategy established against biofilm infections. In this regard, nanotechnology can provide a potential platform for the alleviation of this problem owing to its unique size-dependent properties. Accordingly, various novel strategies are being developed for the synthesis of different types of nanoparticles. Bio-nanotechnology is a division of nanotechnology which is gaining significant attention due to its ability to synthesize nanoparticles of various compositions and sizes using biotic sources. It utilizes the rich biodiversity of various biological components which are biocompatible for the synthesis of nanoparticles. Additionally, the biogenic nanoparticles are eco-friendly, cost-effective, and relatively less toxic when compared to chemically or physically synthesized alternatives. Biogenic synthesis of nanoparticles is a bottom-top methodology in which the nanoparticles are formed due to the presence of biological components (plant extract and microbial enzymes) which act as stabilizing and reducing agents. These biosynthesized nanoparticles exhibit anti-biofilm activity via various mechanisms such as ROS production, inhibiting quorum sensing, inhibiting EPS production, etc. This review will provide an insight into the application of various biogenic sources for nanoparticle synthesis. Furthermore, we have highlighted the potential of phytosynthesized nanoparticles as a promising antibiofilm agent as well as elucidated their antibacterial and antibiofilm mechanism.

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“…For example, the utilization of microbes will consume more time regarding the culturing process, the difficulties in maintaining cell structures, including size distribution, shape, and crystallinity [20]. Moreover, the use of plants opens up the possibility for a large-scale NPs synthesis [2,21], since various parts of plants can be used such as leaves [22], flowers [23], fruits [24], roots [3], stems [25], and seeds [26]. Using this green concept, several NPs have been synthesized, including gold (Au), silver (Ag), zinc oxide (ZnO), and iron (Fe) [14] using plant extracts such as orange [6], lemons [27], pepper, Aloe vera, Nigella sativa, Pulicaria glutinosa, Justicia glauca, Mimusops elengi L, coffee, Lawsonia inermis [28], and purple or red cabbage [29,30].…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of silver nanoparticles from anthocyanin extracts of purple cabbage (brassica oleracea var capitata) and its characteristics for dye-sensitized solar cells (DSSC) application

Arsyad

Cassandra

Asharuddin

et al. 2022

J. Phys.: Conf. Ser.

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We extracted natural dye from purple cabbage (PCE) and green-synthesized the silver nanoparticle (AgNPs) from this extract for the light-harvesting material in DSSC. The anthocyanin was extracted with the maceration method for 24 hours with solvent variation (distilled water (DW), ethanol and methanol), followed by synthesized AgNPs. From FTIR, we found that the absorption area of anthocyanin at 1629 cm−1 correspond with stretch vibration of C=O shifted to 1608 cm−1 in AgNP, indicates the presence of amine group or flavanones group. The PCEs showed an amorphous non-Bragg diffraction peak at a range of (15-25)°. AgNP’s diffractogram showed an intense peak at around 37.94° originates from Ag. Visible light range absorption observed, peaked at (421, 480, 550, and 966) nm, (415 and 544) nm, and (409 and 544) for PCEs in DW, ethanol, and methanol, respectively. The peak at 550 nm that comes from aglycone group in anthocyanin would be disappeared in the AgNPs that was made by dissolving AgNO3 in DW, ethanol, and methanol. The energy gap was (2.37, 3.00, and 3.03) eV for PCEs in DW, ethanol, and methanol, respectively, and (3.20, 3.30, and 3.31) eV for AgNPs. The reduction current originated from the Faradaic process (dark and irradiated condition) was detected in the extract with DW and ethanol as solvent, while it was not noticeable in methanol. This reduction current was detected for all solvents in AgNP positioned at a positive voltage of 0.2V. To be used as a light absorber in DSSC, one must choose the dye solution with the smallest energy gap without or small reduction current.

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Green synthesis of silver nanoparticles using plant leaf extraction of Artocarpus heterophylus and Azadirachta indica

Cited by 75 publications

References 16 publications

Phytofabrication of Silver Nanoparticles (AgNPs) with Pharmaceutical Capabilities Using Otostegia persica (Burm.) Boiss. Leaf Extract

Phytofabrication of Silver Nanoparticles (AgNPs) with Pharmaceutical Capabilities Using Otostegia persica (Burm.) Boiss. Leaf Extract

Phyto-fabricated Nanoparticles and Their Anti-biofilm Activity: Progress and Current Status

Green synthesis of silver nanoparticles from anthocyanin extracts of purple cabbage (brassica oleracea var capitata) and its characteristics for dye-sensitized solar cells (DSSC) application

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