Biosynthesis of Cr(III) nanoparticles from electroplating wastewater using chromium-resistant <i>Bacillus subtilis</i> and its cytotoxicity and antibacterial activity

Kanakalakshmi, A.; Janaki, V.; Shanthi, K.; Kamala‐Kannan, Seralathan

doi:10.1080/21691401.2016.1228660

Cited by 16 publications

(8 citation statements)

References 38 publications

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“…No single dose has shown stronger potential than the positive control. Overall, our Cr 2 O 3 NPs have shown potential antibacterial activities against different bacterial strains which are consistent with the previous reports of green nanoparticles (Hassan et al, ; Kanakalakshmi, Janaki, Shanthi, & Kamala‐Kannan, ). The increased antibacterial potential of Cr 2 O 3 NPs is due to the bioactive functional groups attached on the surface of NPs.…”

Section: Resultssupporting

confidence: 92%

Facile green synthesis approach for the production of chromium oxide nanoparticles and their different in vitro biological activities

Iqbal

Abbasi

Munir

et al. 2020

Microscopy Res & Technique

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Green synthesis of nanoparticles using plants has become a promising substitute for the conventional chemical synthesis methods. In the present study, our aim was to synthesize chromium oxide nanoparticles (Cr 2 O 3 NPs) through a facile, low-cost, ecofriendly route using leaf extract of Rhamnus virgata (RV). The formation of Cr 2 O 3 NPs was confirmed and characterized by spectroscopic profile of UV-Vis, EDX, FTIR, and XRD analyses. The UV-visible spectroscopy has confirmed the formation of Cr 2 O 3 NPs by the change of color owing to surface plasmon resonance. The bioactive functional groups present in the leaf extract of RV involved in reduction and stabilization of Cr 2 O 3 NPs were determined by FTIR analysis. Based on XRD analysis, crystalline nature of Cr 2 O 3 NPs was determined. The morphological shape and elemental composition of Cr 2 O 3 NPs were investigated using SEM and EDX analyses, respectively. With growing applications of Cr 2 O 3 NPs in biological perspectives, Cr 2 O 3 NPs were evaluated for diverse biopotentials. Cr 2 O 3 NPs were further investigated for its cytotoxicity potentials against HepG2 and HUH-7 cancer cell lines (IC 50 : 39.66 and 45.87 μg/ml), respectively. Cytotoxicity potential of Cr 2 O 3 NPs was confirmed against promastigotes (IC 50 : 33.24 μg/ml) and amastigotes (IC 50 : 44.31 μg/ml) using Leishmania tropica (KMH 23 ). The Cr 2 O 3 NPs were further evaluated for antioxidants, biostatic, alpha-amylase, and protein kinase inhibition properties. Biocompatibility assay was investigated against human macrophages which confirmed the nontoxic nature of Cr 2 O 3 NPs. Overall, the synthesized Cr 2 O 3 NPs are biocompatible and nontoxic and proved to possess significant biopotentials. In future, different in vivo studies are needed to fully investigate the cytotoxicity and mechanism of action associated with these Cr 2 O 3 NPs. K E Y W O R D S anticancer, antileishmanial, antimicrobial, biocompatibility, Cr 2 O 3 NPs, protein kinase

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Section: Resultssupporting

confidence: 92%

Facile green synthesis approach for the production of chromium oxide nanoparticles and their different in vitro biological activities

Iqbal

Abbasi

Munir

et al. 2020

Microscopy Res & Technique

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“…The formation of chromium oxide nanoparticles was confirmed due to the appearance of a strong absorption of electromagnetic wave at 309.87 nm, which is closer to the optical studies of Cr 2 O 3 nanoparticles reported in previous literature [19,20] (Figure 3). The optical band gap was investigated using Tauc plot method, which is a material characterization technique, Tauc plot is used for more intrinsic band gap analysis, which is calculated by famous Tauc equation.…”

Section: Uv-visible Spectroscopysupporting

confidence: 89%

Bio‐fabricated chromium (III) oxide nanorods for catalytic and bactericidal applications in water treatment

Bukhari

Ali

Dildar

et al. 2022

J Chinese Chemical Soc

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The treatment of chemical and biological contaminants in water through biofabricated metal nanoparticles is one of the promising sustainable methods.Herein, an efficient synthesis of novel chromium oxide nanorods is introduced by Illicium verum fruit extract as a bio-reducing, capping, and stabilizing agent.The morphological, optical, catalytic, and bactericidal properties of nanorods are investigated by various techniques. The UV-visible spectra displayed strong absorption peak in the region of 309.8 nm, whereas Fourier transform infrared presented the characteristic vibrations at 605.65 and 651.94 cm À1 attributed to Cr O binding mode. Scanning electron microscopy results showed that chromium oxide nanoparticles are well-dispersed with small rodshaped morphology. The average size of nanorods was found to be ~15 to 20 nm in length. Due to their ultra-large surface area and strong π-π interaction, the plant-coated nanorods were tested for the catalytic removal of methyl orange (MO), a common water-soluble textile dye. Adsorption potential of Cr 2 O 3 nanoparticles was monitored by UV-visible spectrophotometer, which showed 90-95% successive decrease in the absorption maxima of aqueous MO (1 μM). The elimination rate of MO was drastically improved from 45 to 30 min, while a combination of Cr 2 O 3 nanorods and sodium borohydride NaBH 4 was used. Bactericidal activities of these nanorods were tested against vast number of Gram-positive and Gram-negative bacteria. The significant results were obtained with 27 mm zone of inhibition against Klebsiella. oxytoca and Serratia. marcescens. This quick and simple procedure can be scaled up for commercial applications of new, eco-friendly, and cost-effective water treatment process.

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“…The higher Zone of Inhibition in case of K. pneumonia by the chromium oxide nanoparticles synthesized by sol-gel technique was reported earlier [18] and systematic antimicrobial activity of chromium nanoparticles against pathogenic bacteria also reported earlier (Uma et al 2019 and Kanakalakshmi et al 2017. [3,19]…”

Section: Resultssupporting

confidence: 64%

Antibacterial Function of Chromium Nanoparticles Against K. Pneumonia, E. coli and P. typhus

Tailor

Chaudhary

Joshi

et al. 2020

Preprint

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The bioactive chromium nanoparticles were synthesized by calcination followed by thermal decomposition method. The antibacterial activity of chromium nanoparticles diffused in Dimethyl sulphoxide (DMSO). The antibacterial activity of chromium nanoparticles carried out against significant human pathogens (gram negative bacteria) viz, K. pneumonia, E. coli and P. typhus using agar diffusion cup plate method at 100 µg/ml concentration. The highest zone of inhibition was observed (12.0 mm) against K. pneumonia and lowest zone of inhibition (7.0 mm) E. coli. Thus, the outcomes of these studies suggest that synthesized chromium nanoparticles are of clinical importance.

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Biosynthesis of Cr(III) nanoparticles from electroplating wastewater using chromium-resistant Bacillus subtilis and its cytotoxicity and antibacterial activity

Cited by 16 publications

References 38 publications

Facile green synthesis approach for the production of chromium oxide nanoparticles and their different in vitro biological activities

Facile green synthesis approach for the production of chromium oxide nanoparticles and their different in vitro biological activities

Bio‐fabricated chromium (III) oxide nanorods for catalytic and bactericidal applications in water treatment

Antibacterial Function of Chromium Nanoparticles Against K. Pneumonia, E. coli and P. typhus

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