Biosynthesis of Highly Stable Fluorescent Selenium Nanoparticles and the Evaluation of Their Photocatalytic Degradation of Dye

Tripathi, Ravi Mani; Hameed, Pearlin; Rao, R. Pragadeeshwara; Shrivastava, Neeraj; Mittal, Jagjiwan; Mohapatra, Swarti

doi:10.1007/s12668-020-00718-0

Cited by 53 publications

(35 citation statements)

References 42 publications

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“…Figure 15 , illustrates the schematic diagram of SeNPs mechanism in the photocatalytic degradation activity of MB dye, the catalyst of SeNPs photo-generated holes in VB (valence band) h vb + by reacting with H 2 O to produce OH - and H + species. Further, e - in CB (conduction band) produces an ERP (Electron Resonance Plasma) over the SeNPs surface and they react with O 2 to produce O 2 − 27 , 28 . The OH—(hydroxyl radicals) and O 2 − (superoxide radical anions) generated enables the oxidation process on the surface of SeNPs catalyst and enrich the MB degradation.…”

Section: Resultsmentioning

confidence: 99%

Green synthesis of selenium nanoparticles mediated from Ceropegia bulbosa Roxb extract and its cytotoxicity, antimicrobial, mosquitocidal and photocatalytic activities

Vetrivel

Durairaj

Kalaimurugan

et al. 2021

Sci Rep

170

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The present study is to design an eco-friendly mode to rapidly synthesize selenium nanoparticles (SeNPs) through Ceropegia bulbosa tuber’s aqueous extracts and confirming SeNPs synthesis by UV–Vis spectroscopy, FT-IR, XRD, FE-SEM-EDS mapping, HR-TEM, DLS and zeta potential analysis. In addition, to assess the anti-cancer efficacy of the SeNPs against the cultured MDA-MB-231, as studies have shown SeNPs biosynthesis downregulates the cancer cells when compared to normal HBL100 cell lines. The study observed the IC50 value of SeNPs against MDA-MB-231 cells was 34 µg/mL for 48 h. Furthermore, the SeNPs promotes growth inhibitory effects of certain clinical pathogens such as Bacillus subtilis and Escherichia coli. Apart, from this the SeNPs has shown larvicidal activity after 24 h exposure in Aedes albopitus mosquito’s larvae with a maximum of 250 g/mL mortality concentration. This is confirmed by the histopathology results taken at the 4th larval stage. The histopathological studies revealed intense deterioration in the hindgut, epithelial cells, mid gut and cortex region of the larvae. Finally, tried to investigate the photocatalytic activity of SeNPs against the toxic dye, methylene blue using halogen lamp and obtained 96% degradation results. Withal computational study SeNPs was shown to exhibit consistent stability towards breast cancer protein BRCA2. Overall, our findings suggest SeNPs as a potent disruptive agent for MDA-MB-231 cells, few pathogens, mosquito larvae and boosts the photocatalytic dye degradation.

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Section: Resultsmentioning

confidence: 99%

Green synthesis of selenium nanoparticles mediated from Ceropegia bulbosa Roxb extract and its cytotoxicity, antimicrobial, mosquitocidal and photocatalytic activities

Vetrivel

Durairaj

Kalaimurugan

et al. 2021

Sci Rep

170

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“…As opposed to conventional chemogenic syntheses, biogenic approaches give rise to thermodynamically stable yet structurally diverse SeNS products in a safe and eco-friendly manner, avoiding the need of post-production treatments [2]. To date, biogenic SeNMs were investigated for their applications in (i) biomedicine, as antimicrobial [19][20][21][22][23][24][25][26][27], anticancer [27][28][29][30][31][32][33][34][35][36][37][38] and antioxidant [27,[39][40][41] agents, due to their high biocompatibility towards eukaryotic in vitro and in vivo systems [22,28,40,42], (ii) photocatalysis, and (iii) biosensing or pollutant adsorption [43][44][45][46], leaving still unveiled the potentiality of these NSs as a bioimaging tool. In particular, the PL properties of SeNPs produced by bacteria just recently began to be explored, as in the case of those recovered from the environmental isolate Stenotrophomonas maltophilia SeITE02 under metabolically controlled growth conditions [6].…”

Section: Introductionmentioning

confidence: 99%

Tunable photoluminescence properties of selenium nanoparticles: biogenic versus chemogenic synthesis

et al. 2020

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AbstractVarious technological and biomedical applications rely on the ability of materials to emit light (photoluminescence [PL]), and, among them, metal nanoparticles (NPs) and semi-conductor Quantum Dots (QDs) represent ideal candidates as sensing probes and imaging tools, portraying better PL features than conventional organic dyes. However, the knowledge of PL behavior of semiconductor NPs – i.e., selenium; SeNPs – is still in its infancy, especially for those synthesized by microorganisms. Considering the essential role played by biogenic SeNPs as antimicrobial, anticancer, and antioxidant agents, or food supplements, their PL properties must be explored to take full advantage of them as eco-friendly and versatile tools. Here, PL features of SeNPs produced by the Se-tolerant Stenotrophomonas maltophilia SeITE02 strain, compared with chemogenic ones, are investigated, highlighting the PL dependency on the NP size. Indeed, PL emission shifted from indigo-blue (emission wavelength λem 400–450 nm) to green-yellow (λem 480–570 nm) and orange-red (λem 580–700 nm) for small (ca. 50 nm) and big (ca. 100 nm) SeNPs respectively, revealing the versatility of an environmental bacterial isolate to synthesize diverse PL probes. Besides, biogenic SeNPs show PL lifetime comparable to those of the most used fluorophores, supporting their potential application as markers for (bio)imaging.

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“…Selenium nanoparticles synthesized using extract of plants are also very effective materials for photocatalytic degradation of dyes, due to their high surface to volume ratio [57,78,79]. These dyes are largely used as colorants in the common food and pharmaceutical industry.…”

Section: Application Of Senpsmentioning

confidence: 99%

Biosynthesis of selenium nanoparticles using plant extracts

Pyrzyńska

Sentkowska

2021

J Nanostruct Chem

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Selenium nanoparticles (SeNPs) have the potential to be used for various applications. Therefore, they have attracted more attention in recent years and several synthesis methods have been exploited. Green synthesis using plant extracts has gained popularity because it requires non-toxic solvents and moderate temperatures. Furthermore, it is environmentally friendly and uses a reducing agent that is easily accessible and biodegradable. In this review, we present recent reports concerning the capability of different plant materials for the biosynthesis of selenium nanoparticles. The synthesis conditions (temperature, time, selenium precursor, and extract concentration) are discussed in combination with the characteristics of the obtained product (composition, size, shape, stability). The application of synthesized selenium nanoparticles was briefly presented. Graphic abstract

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Biosynthesis of Highly Stable Fluorescent Selenium Nanoparticles and the Evaluation of Their Photocatalytic Degradation of Dye

Cited by 53 publications

References 42 publications

Green synthesis of selenium nanoparticles mediated from Ceropegia bulbosa Roxb extract and its cytotoxicity, antimicrobial, mosquitocidal and photocatalytic activities

Green synthesis of selenium nanoparticles mediated from Ceropegia bulbosa Roxb extract and its cytotoxicity, antimicrobial, mosquitocidal and photocatalytic activities

Tunable photoluminescence properties of selenium nanoparticles: biogenic versus chemogenic synthesis

Biosynthesis of selenium nanoparticles using plant extracts

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