Green synthesis of Cr2O3 nanoparticles by Cassia fistula, their electrochemical and antibacterial potential

Gul, Yasmeen; Hussain, Shabbir; Tajammal, Affifa; Mustafa, Zeeshan; Sagir, Muhammad; Shahid, Muhammad; Ibrar, Muhammad; Mehr-un-Nisa, .; Elqahtani, Zainab Mufarreh; Iqbal, Munawar

doi:10.1016/j.arabjc.2023.104912

Cited by 14 publications

(2 citation statements)

References 76 publications

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“…Additionally, the main peak of the biopolymer decreased in intensity. Also, the bimetallic nanoparticles were presented where TiO2NPs peaks were assigned at 2Ɵ = 30.9, 32, 36, 45° [56][57][58] and Cr2O3 NPs at 2Ɵ = 33, 36, 50, 64° [59][60][61] as small peaks according to the presence of biopolymers and trapping of bimetallic into biopolymer chains. These observations were in good agreement with other physiochemical and TEM analyses.…”

Section: Characterizationmentioning

confidence: 99%

New Eco-Friendly, Biocompatible, Bactericidal, Fungicidal and Anticancer-Activity-Exhibiting Nanocomposites Based on Bimetallic TiO2@Cr2O3 Nanoparticle Core and Biopolymer Shells

Hasanin,

Elhenawy,

Abdel-Hamid

et al. 2023

J. Compos. Sci.

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Nanoparticles have attracted substantial attention for their diverse range of applications, particularly in biomedicine applications and drug delivery, owing to their unique properties. However, their tiny size facilitates easy cellular entry, which can also lead to interactions with cellular components, potentially resulting in toxicity and undesirable effects. In this study, a novel nanocomposite formulation was developed using biopolymers, specifically ethylcellulose and collagen, as capping and stabilizing agents to create bimetallic nanoparticles including TiO2@Cr2O3 nanoparticles. Physicochemical and morphological analyses were carried out to validate the formulation’s structure. The obtained characteristics emphasized the presence of a nanostructure involving bimetallic nanoparticles. This formulation exhibited excellent biological activity, including high biocompatibility with Vero and WI38 cells at concentrations of 40.4 and 52 µg/mL, respectively, as well as effective anticancer activity with significant selectivity. The IC50 values were determined to be 19 and 22 µg/mL for MCF7 and A549 cells, respectively. The antimicrobial assessment revealed the highest MIC value for A. niger at 50 µg/mL, while the lowest MIC value was observed for Gram-positive bacteria at 3.12 µg/mL. Additionally, the nanocomposite demonstrated antioxidant activity at a low concentration of 1.5 µg/mL.

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Section: Characterizationmentioning

confidence: 99%

New Eco-Friendly, Biocompatible, Bactericidal, Fungicidal and Anticancer-Activity-Exhibiting Nanocomposites Based on Bimetallic TiO2@Cr2O3 Nanoparticle Core and Biopolymer Shells

Hasanin,

Elhenawy,

Abdel-Hamid

et al. 2023

J. Compos. Sci.

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“…Plant-based biological agents play a dual role as reducing as well as capping agents. 17 Plant-mediated production of NPs is also sustainable for the ecosystem as it is not associated with the menace of toxic waste contamination. 15 Plant-based NPs are significantly more stable than those synthesized by conventional methods, and they are produced in numerous shapes including spherical, needles, cylindrical, cubical, prisms, stems, and dendrites.…”

Section: ■ Introductionmentioning

confidence: 99%

Tagetes erecta-Mediated Biosynthesis of Mn₃O₄ Nanoparticles: Structural, Electrochemical, and Biological Investigations

Hussain,

Aslam,

Tajammal

et al. 2024

ACS Omega

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Mn 3 O 4 nanoparticles (NPs) find diverse applications in the fields of medicine, biomedicine, biosensors, water treatment and purification, electronics, electrochemistry, and photoelectronics. The production of Mn 3 O 4 NPs was reported earlier through various physical, chemical, and green routes, but no studies have still been performed on their biosynthesis from Tagetes erecta. We synthesized manganese oxide NPs, i.e., (Mn 3 O 4 ) L and (Mn 3 O 4 ) P NPs, by utilizing leaves and petals, respectively, of T. erecta as reducing and stabilizing agents. The investigated green path is eco-friendly and does not involve any hazardous raw materials. The structural properties of NPs were determined by Xray diffraction (XRD) analysis, spectroscopies (Fourier transform infrared (FTIR), Raman, and UV−visible), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The NPs were also evaluated for their electrochemical properties by cyclic voltammetry (CV) and galvanostatic charge−discharge (GCD). XRD analysis was performed to verify their tetragonal geometry, and the crystallite size (19.24 nm) of (Mn 3 O 4 ) P was smaller than that (20.84 nm) of (Mn 3 O 4 ) L NPs. SEM images displayed a porous and spherical morphology with a diameter of 14−35 nm. FTIR spectra of (Mn 3 O 4 ) L and (Mn 3 O 4 ) P displayed Mn−O vibrations at 605.69 and 616.87 cm −1 , respectively, and the hydrous nature of the material. Raman spectroscopy revealed the existence of tetrahedral and octahedral units along with A 1g , T 2g , and E g active modes of Mn 3 O 4 and 2TO mode. UV−visible analyses of (Mn 3 O 4 ) L and (Mn 3 O 4 ) P NPs showed absorption peaks at 272.3 and 268.8 nm, along with band gaps of 4.83 and 5.49 eV, respectively. TGA curves displayed good thermal stabilities up to 600 °C and a loss of moisture content. DSC curves exhibited exothermic/endothermic peaks with glass transition temperatures of 258.9 and 308.7 °C for (Mn 3 O 4 ) P and (Mn 3 O 4 ) L , respectively. The CV curves showed redox peaks and confirmed that the electrochemical reaction takes place in the Mn 3 O 4 material. GCD scans revealed the capacitive behavior of NPs and their suitability as electrodes in energy storage devices. However, (Mn 3 O 4 ) L will act as a good material for energy storage applications as compared to (Mn 3 O 4 ) P NPs. The synthesized NPs were also tested for their antibacterial efficacy by biofilm inhibition and agar well diffusion methods. The NPs showed higher activities against Staphylococcus aureus (Gram-positive) than against Escherichia coli (Gram-negative), and (Mn 3 O 4 ) P was more bioactive than (Mn 3 O 4 ) L .

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Phytosynthesis of transition (Ni, Fe, Co, Cr, and Mn) metals and their oxide nanoparticles for biomedical applications: a review

Esfanddarani,

Panigrahi

2024

J Mater Sci

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Green synthesis of Cr2O3 nanoparticles by Cassia fistula, their electrochemical and antibacterial potential

Cited by 14 publications

References 76 publications

New Eco-Friendly, Biocompatible, Bactericidal, Fungicidal and Anticancer-Activity-Exhibiting Nanocomposites Based on Bimetallic TiO2@Cr2O3 Nanoparticle Core and Biopolymer Shells

New Eco-Friendly, Biocompatible, Bactericidal, Fungicidal and Anticancer-Activity-Exhibiting Nanocomposites Based on Bimetallic TiO2@Cr2O3 Nanoparticle Core and Biopolymer Shells

Tagetes erecta-Mediated Biosynthesis of Mn₃O₄ Nanoparticles: Structural, Electrochemical, and Biological Investigations

Phytosynthesis of transition (Ni, Fe, Co, Cr, and Mn) metals and their oxide nanoparticles for biomedical applications: a review

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Green synthesis of Cr2O3 nanoparticles by Cassia fistula, their electrochemical and antibacterial potential

Cited by 14 publications

References 76 publications

New Eco-Friendly, Biocompatible, Bactericidal, Fungicidal and Anticancer-Activity-Exhibiting Nanocomposites Based on Bimetallic TiO2@Cr2O3 Nanoparticle Core and Biopolymer Shells

New Eco-Friendly, Biocompatible, Bactericidal, Fungicidal and Anticancer-Activity-Exhibiting Nanocomposites Based on Bimetallic TiO2@Cr2O3 Nanoparticle Core and Biopolymer Shells

Tagetes erecta-Mediated Biosynthesis of Mn3O4 Nanoparticles: Structural, Electrochemical, and Biological Investigations

Phytosynthesis of transition (Ni, Fe, Co, Cr, and Mn) metals and their oxide nanoparticles for biomedical applications: a review

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Tagetes erecta-Mediated Biosynthesis of Mn₃O₄ Nanoparticles: Structural, Electrochemical, and Biological Investigations