Enhanced conversion and stability of biosynthetic selenium nanoparticles using fetal bovine serum

Song, Chao; Xiao, Li; Wang, Shuguang; Meng, Qiwei

doi:10.1039/c6ra22747c

Cited by 15 publications

(8 citation statements)

References 44 publications

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“…In Figure a, the C 1s, O 1s, and Se 3d signals are detected, which is consistent with the EDS analysis. Whereas, N was detected in the XPS spectrum, but not in the EDS spectrum, which could be due to the overlap of C and O signals on the N peak in the EDS spectrum …”

Section: Resultsmentioning

confidence: 88%

Synthesis, Characterization, Immune Regulation, and Antioxidative Assessment of Yeast-Derived Selenium Nanoparticles in Cyclophosphamide-Induced Rats

Ren

Liang

et al. 2021

ACS Omega

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This article introduces an environmentally friendly and more economical method for preparing red selenium nanoparticles (Se-NPs) with high stability, good biocompatibility, and narrow size using yeast as a bio-reducing agent with high antioxidant, immune regulation, and low toxicity than inorganic and organic Se. The yeast-derived Se-NPs were characterized by scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The results revealed spherical-shaped particles of Se-NPs with an average diameter of 71.14 ± 18.17 nm, an amorphous structure, and surface enhancement with an organic shell layer, that provide precise geometry and stability in the formation of bio-inert gray or black Se-NPs instead of red Se-NPs. Furthermore, the addition of 0.3−0.8 mg/kg Se-NPs in the feed significantly improved the health of mice. As Se-NPs stimulated the oxidative state of mice, it significantly increased the level of GSH-Px, SOD, and AOC, and decreased the level of MDA. The yeast-derived Se-NPs alleviated the immunosuppression induced by cyclophosphamide, whereas protected the liver, spleen, and kidney of mice, stimulated the humoral immune potential of the mice, and significantly increased the levels of I g M, IgA, and I g G. These results indicated that the yeast-derived Se-NPs, as a trace element feed additive, increased the defense of the animal against oxidative stress and infectious diseases and therefore Se-NPs can be used as a potential antibiotic substitute for animal husbandry.

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Section: Resultsmentioning

confidence: 88%

Synthesis, Characterization, Immune Regulation, and Antioxidative Assessment of Yeast-Derived Selenium Nanoparticles in Cyclophosphamide-Induced Rats

Ren

Liang

et al. 2021

ACS Omega

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“…Similarly, the FTIR spectra of VAuNPs treated with FBS revealed the coating of proteins on the surface of VAuNPs ( Figure 1F ). The FTIR peaks observed at 1,255 cm −-1 , 1,556 cm −-1 , 1,652 cm −-1 and 3,227–3,414 cm −1 corresponds to C-O deformation vibrations in the carboxylic group, -NH bending vibrations of amide II and C-N stretching in -CO-NH- in proteins, stretching vibrations of C=O of amide I in proteins, stretching vibrations of -OH and -NH in hydroxy and amine groups, respectively ( Song et al, 2016 ). The FTIR of FBS treated VAuNPs suggests that several functional groups of vanillin present on VAuNPs are masked by proteins from FBS to form a PC on VAuNPs ( Figures 1E,F ).…”

Section: Resultsmentioning

confidence: 99%

Reduced Genotoxicity of Gold Nanoparticles With Protein Corona in Allium cepa

Arya

Rookes

Cahill

et al. 2022

Front. Bioeng. Biotechnol.

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Increased usage of gold nanoparticles (AuNPs) in biomedicine, biosensing, diagnostics and cosmetics has undoubtedly facilitated accidental and unintentional release of AuNPs into specific microenvironments. This is raising serious questions concerning adverse effects of AuNPs on off-target cells, tissues and/or organisms. Applications utilizing AuNPs will typically expose the nanoparticles to biological fluids such as cell serum and/or culture media, resulting in the formation of protein corona (PC) on the AuNPs. Evidence for PC altering the toxicological signatures of AuNPs is well studied in animal systems. In this report, we observed significant genotoxicity in Allium cepa root meristematic cells (an off-target bioindicator) treated with high concentrations (≥100 µg/ml) of green-synthesized vanillin capped gold nanoparticles (VAuNPs). In contrast, protein-coated VAuNPs (PC-VAuNPs) of similar concentrations had negligible genotoxic effects. This could be attributed to the change in physicochemical characteristics due to surface functionalization of proteins on VAuNPs and/or differential bioaccumulation of gold ions in root cells. High elemental gold accumulation was evident from µ-XRF mapping in VAuNPs-treated roots compared to treatment with PC-VAuNPs. These data infer that the toxicological signatures of AuNPs are influenced by the biological route that they follow to reach off-target organisms such as plants. Hence, the current findings highlight the genotoxic risk associated with AuNPs, which, due to the enhanced utility, are emerging as new pollutants. As conflicting observations on the toxicity of green-synthesized AuNPs are increasingly reported, we recommend that detailed studies are required to investigate the changes in the toxicological signatures of AuNPs, particularly before and after their interaction with biological media and systems.

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“…The O 1s spectrum shows three characteristic peaks at the binding energies of 532.64 eV, 529.42 eV, 531.68 eV, and 535.35 eV, related to the oxidation states of Ce 3+ and Ce 4+ [ 76 , 77 ], aluminium oxide compounds [ 78 ], and Na KLL Auger [ 79 ], respectively ( Figure 10 e). The XPS spectrum of C 1s appears four deconvolution peaks at 284.70 eV, 286.00 eV, 285.79 eV, and 288.13 eV, which are attributed to C

C/C

H [ 80 ], C

N/C

S [ 81 ], C

S [ 82 ], and C=S [ 83 ], respectively ( Figure 10 f). It is noteworthy in Table 4 that C and N species contribute significantly to the creation of surface product layers with 31.71 and 9.53%, respectively.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Corrosion Inhibition Potential of Cerium/Tetraethylenepentamine Dithiocarbamate Complex on AA2024-T3 in 3.5% NaCl

et al. 2022

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In this work, a cerium/tetraethylenepentamine dithiocarbamate complex was synthesized and evaluated for the corrosion inhibition capability on an AA2024-T3 Al alloy in a 3.5% NaCl medium. The synthesized compounds were characterized via spectroscopic techniques. The corrosion inhibition behaviour of the complex was elucidated by electrochemical measurements and surface analysis techniques. Based on electrochemical test results, the corrosion inhibition efficiency of the complex increases with the immersion time of aluminium alloy in the test solution. The corrosion inhibition reaches 96.80% when the aluminium is immersed in a 3.5% NaCl solution containing a corrosion inhibitor for 120 h. The potentiodynamic polarization test results show that the complex acts as a mixed-type corrosion inhibitor and the passive range is widened. The surface analysis methods reveal that the corrosion inhibition ability of the complex originated from the formation of a protective layer on the Al surface. This film is created from the physisorption and chemisorption of cerium ions and organic parts simultaneously released from the complex molecules.

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Enhanced conversion and stability of biosynthetic selenium nanoparticles using fetal bovine serum

Abstract: This study aimed to optimize biosynthetic selenium nanoparticles (BioSeNPs) synthesis using fetal bovine serum (FBS) as part of the culture medium to enhance the conversion efficiency and stability of BioSeNPs.

Cited by 15 publications

References 44 publications

Synthesis, Characterization, Immune Regulation, and Antioxidative Assessment of Yeast-Derived Selenium Nanoparticles in Cyclophosphamide-Induced Rats

Synthesis, Characterization, Immune Regulation, and Antioxidative Assessment of Yeast-Derived Selenium Nanoparticles in Cyclophosphamide-Induced Rats

Reduced Genotoxicity of Gold Nanoparticles With Protein Corona in Allium cepa

Synthesis and Corrosion Inhibition Potential of Cerium/Tetraethylenepentamine Dithiocarbamate Complex on AA2024-T3 in 3.5% NaCl

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