Silver nanoparticle stabilized by hydrolyzed collagen and natural polymers: Synthesis, characterization and antibacterial-antifungal evaluation

Nogueira, Silvania Siqueira; Araujo-Nobre, Alyne Rodrigues de; Mafud, Ana Carolina; Guimarães, Maria Adelaide; Alves, Michel Muálem de Moraes; Plácido, Alexandra; Carvalho, Fernando Aécio de Amorim; Arcanjo, Daniel Dias Rufino; Mascarenhas, Yvonne P.; Costa, Fernanda Guilhelmelli; Albuquerque, Patrícia; Eaton, Peter; Leite, José de Souza de Almeida Roberto; Silva, Durcilene Alves da; Cardoso, Vinícius Saura

doi:10.1016/j.ijbiomac.2019.05.214

Cited by 46 publications

(26 citation statements)

References 26 publications

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“…XRD patterns of NFB and MFB after different heat treatments are shown in Figure . The broad peaks at about 20° were the characteristic peaks of collagen (Nogueira et al, ). For all NFB samples, the peaks showed low intensity and could not be identified, suggesting the structure of collagen has been destroyed because of wet ball milling.…”

Section: Resultsmentioning

confidence: 99%

Small‐size effect on physicochemical properties of micronized fish bone during heating

Jiang

Zhang

Yin

et al. 2020

J Food Process Preserv

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Abbreviations: FT-IR, Fourier transform infrared spectroscopy; MFB, micro-scaled fish bones; NFB, nano-scaled fish bones; XRD, X-ray diffraction AbstractThe aim of the study is to investigate physicochemical properties of nano-scaled fish bone (NFB) and micro-scaled fish bone (MFB) during heating and improve their valorization by promoting their calcium release. For MFB, heating promoted its calcium release (from 0.7% to 2.2%) and solubility (from 4.6% to 11%) mainly by reducing the particle size (from 20.51 to 17.85 μm). However, the FT-IR and XRD of MFB spectra showed small change during heating. For NFB, heating hardly changed its particle size but further destroyed the crystal and chemical structure of NFB. The solubility was significantly increased from 9.8% to 14.0%. After heating at 90°C, the sharper diffraction peaks of hydroxyapatite were also observed. The calcium release was significantly promoted from 9.0% to 14%. The results showed heating could more effectively promote the calcium release of fish bones when the particle size was reduced to nanoscale. Practical applicationsGrass carp is the most productive freshwater fish in China. Fish bones are the main by-product from fish processing. Fish bones can be added to food as a natural calcium sources. The aims of our research are to improve the calcium release of fish

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Section: Resultsmentioning

confidence: 99%

Small‐size effect on physicochemical properties of micronized fish bone during heating

Jiang

Zhang

Yin

et al. 2020

J Food Process Preserv

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“…On the other hand, no apparent effect of CT extracts (up to 100 μg/mL) was observed for gram-positive and gram-negative bacteria. It is generally accepted that SNPs has a strong biocidal effect against bacteria which inhibits replication of DNA, thus affecting bacterial viability [ 3 , 27 ]. Furthermore, SNPs penetrate the bacterial cell wall and interrupt it.…”

Section: Resultsmentioning

confidence: 99%

“…Silver nanoparticles (SNPs) are noteworthy owing to their extensive applications in cosmetics, biomedical, food, and health industries, fungicidal agents, and water-based systems. This may be due to their unique conductivity, optical catalytic activity, biocompatible nature, and better structural properties than their bulk counterparts [1][2][3]. SNPs have also been shown to possess potential biological properties, such as antibacterial, antioxidant, antitumor, and anti-inflammatory activities [4].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on Physicochemical, Photocatalytic, and Biological Properties of Silver Nanoparticles Formed Using Extracts of Different Parts of Cudrania tricuspidata

et al. 2020

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Green-synthesized silver nanoparticles (SNPs) have great potential for biomedical applications, due to their distinctive optical, chemical, and catalytic properties. In this study, we aimed to develop green-synthesized SNPs from extracts of Cudrania tricuspidata (CT) roots (CTR), stems (CTS), leaves (CTL), and fruit (CTF) and to evaluate their physicochemical, photocatalytic, and biological properties. CTR, CTS, CTL, and CTF extracts were evaluated and compared for their total phenol and flavonoid content, reducing capacity, and antioxidant activity. The results revealed that CTR, CTS, CTL, and CTF extracts have high phenol and flavonoid content, as well as a powerful antioxidant and reducing capacity. CTR and CTS extracts showed the strongest effects. The results from UV-Vis spectra analysis, dynamic light scattering, high-resolution transmission electron microscopy, energy dispersive spectroscopy, X-ray diffraction, and Fourier-transform infrared spectroscopy showed the successful formation of CT-SNPs with surface morphology, crystallinity, reduction capacity, capsulation, and stabilization. Synthesized CT-SNPs successfully photocatalyzed methylene blue, methyl orange, rhodamine B, and Reactive Black 5 within 20 min. The CTR- and CTS-SNPs showed better antibacterial properties against different pathogenic microbes (Staphylococcus aureus, Bacillus cereus, Escherichia coli, and Salmonella enteritidis) than the CTL- and CTF-SNPs. CTS- and CTR-SNPs showed the most effective cytotoxicity and antiapoptosis properties in human hepatocellular carcinoma cells (HepG2 and SK-Hep-1). CT-SNPs also seemed to be more biologically active than the CT extracts. The results of this study provide evidence of the establishment of CT extract SNPs and their physicochemical, photocatalytic, and biological properties.

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“…Herein, for the purpose of AgNP synthesis, saponins were discovered to provide surfactant functions for capping nanoparticles. In fact, capping agents play an important role in AgNP synthesis and can impact the synthesis effectiveness, the final nanoparticle morphology, and/or the initial nucleation [24]. The common stabilizers include natural polymers (gum, agar, collagen, κ-carrageen, chitosan, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…The common stabilizers include natural polymers (gum, agar, collagen, κ-carrageen, chitosan, etc.) [24], synthetic polymers (polyvinyl pyrrolidone, polyethylene glycol, poly(N-isopropyl acrylamide, etc.) [5,25], cationic surfactants (dodecyltrimethylammonium bromide, tetradecyltrimethylammonium bromide, etc.)…”

Section: Introductionmentioning

confidence: 99%

Evaluation of saponin-rich/poor leaf extract-mediated silver nanoparticles and their antifungal capacity

Nguyen

Thi

et al. 2020

Green Processing and Synthesis

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One-pot green synthesis of silver nanoparticles (AgNPs) has attracted much attention due to its simplicity, high feasibility in scaling up production, abundantly renewable sources, and environmental friendliness. Herein, Ocimum tenuiflorum and Phyllanthus urinaria leaf extracts (OT-ext and P.uri.ext, respectively) were chosen as reacting agents with rich and poor saponins to fabricate two biogenic AgNPs and characterize them. OT-AgNPs were simply and successfully generated by OT-ext. Ultraviolet-visible spectra showed the peak centered at 434 nm, which confirmed the presence of AgNPs after an 8-h reaction. FT-IR showed the organic functional groups (OH, C═O, C═C, CH, and COC) capping the surface of OT-AgNPs, which agreed with energy-dispersive X-ray spectroscopy analysis exhibiting the composition containing C, O, and Ag. Transmission electron microscopy micrographs revealed that OT-AgNPs possess spherical morphology, with a size range of 5–61 nm, and the majority having a small size within that range. In comparison, P.uri.AgNPs formed by P.uri.ext had a size distribution in a similar range, but the P.uri.AgNP diameter shifted toward larger sizes. Further, OT-AgNPs and P.uri.AgNPs showed an effective antifungal ability against Fusarium oxysporum, Aspergillus niger, and Aspergillus flavus. Overall, it was found that the rich saponins in the extracts lead to the formation of smaller AgNPs, but all extract-mediated AgNPs with a size less than 100 nm can act as a fungicide for various applications.

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Silver nanoparticle stabilized by hydrolyzed collagen and natural polymers: Synthesis, characterization and antibacterial-antifungal evaluation

Cited by 46 publications

References 26 publications

Small‐size effect on physicochemical properties of micronized fish bone during heating

Small‐size effect on physicochemical properties of micronized fish bone during heating

A Comparative Study on Physicochemical, Photocatalytic, and Biological Properties of Silver Nanoparticles Formed Using Extracts of Different Parts of Cudrania tricuspidata

Evaluation of saponin-rich/poor leaf extract-mediated silver nanoparticles and their antifungal capacity

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