Phytochemicals and Morphological Influence of Aloe Barbadensis Miller Extract Capped Biosynthesis of CdO Nanosticks

The present study deals with the ecofriendly one-pot synthesis and stabilization of silver nanoparticles (AgNPs) by using aqueous extract of Mentha longifolia branches. Spectrophotometric analysis of different ratios of reactants revealed that a 1 to 9 ratio of plant extract and silver salt solution respectively is the most suitable proportion for synthesis. Synthesis of AgNPs was confirmed initially by the observation of change in the color of the reaction mixture which was carried out at 60°C by using 3 mM of silver salt and the pH of the reaction medium was maintained at 5.22. A characteristic surface plasmon resonance (SPR) band was observed at 495 nm of light wavelength. SEM images revealed that the nanoparticles are in ∼20-80 nm and are anisotropic and nearly spherical while EDX analysis showed the presence of elemental Ag with ∼90% signal intensity. Size distribution analysis of AgNPs was performed by dynamic light scattering technique and AgNPs were found in the range of ∼8-30 nm. ROS quantification revealed that the AgNPs have a quantum yield of 0.09 Φ which provides them the ability to proteolytically treat cancer and other microbial pathogenic cells. AgNPs did not report any photothermal activity to be used as photodynamic agents. These findings explain the redox potential of M. longifolia to bio-fabricate AgNPs and their abilities to generate ROS may help to curb dreading diseases.

show abstract

“…Cu was reported because of the involvement of laser signals with copper grids. Our results support previous findings [30].…”

Section: Morphological and Optical Characterization Of Agnpssupporting

confidence: 94%

One-pot phytosynthesis of nano-silver from Mentha longifolia L.: their characterization and evaluation of photodynamic potential

Javed

Nadhman

Razzaq

et al. 2020

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…Nanotechnology is a potential interdisciplinary science, has a broad range of promising utilization in biomedicine and biotechnology (Naz et al, 2018; Qamar, Asgher, Khalid, & Sadaf, 2019). It facilitates the field of biomedicine by using nanoparticles (NPs) through various physical and chemical processes (Aqeel et al, 2020; Haider et al, 2020a; Mansoor et al, 2017; Pourebrahim et al, 2018; Somasundaram, Rajan, Sangaiya, & Dilip, 2019). However, innovations toward sustainable and ecofriendly routes of synthesis are need of hour (Imran et al, 2018; Jeyaraj et al, 2013; Naz et al, 2017; Zangeneh, Zangeneh, & Moradi, 2020).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of microbial mediated cadmium oxide nanoparticles

Asghar

Habib

Zaman

et al. 2020

Microscopy Res & Technique

View full text Add to dashboard Cite

Microbial mediated synthesis of metallic nanoparticles constitutes as effective and promising approach for the development of antibacterial materials in the field of bioengineering and biomedicine. We prepared Cadmium oxide nanoaprticles (CdO NPs) utilizing Penicillium oxalicum, and cadmium acetate solution via coprecipitate method. The elemental composition and morphology of these synthesized CdO NPs were examined through X-ray diffraction (XRD), UV-Vis absorption spectroscopy, Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and Energy dispersive spectroscopy (EDS). Furthermore, we evaluated the bactericidal potential of prepared CdO NPs using Escherichia coli (E.coli), Staphylococcus aureus (S.aureus), Bacillus cereus (B.cereus), and Pseudomonas aeruginosa (P. aeruginosa). Dimethyl sulfoxide was used as negative control while erythromycin was used as positive control. The XRD spectrum revealed cubic crystalline nanoparticles with 22.94 nm size and UV showed absorbance peak at 297 nm with 2.5 eV band gap energy. FTIR depicted O─H and carboxylic groups along with CdO stretching vibration. EDS showed the presence of organic compounds on Cd and O over NPs surface. SEM results revealed the spherical shape of the CdO NPs. The synthesized NPs exhibited highly potent bactericidal activity against selected strains and demonstrated less optical density of 0.086 after 24 hr. Owing to the significant antibacterial activity of CdO NPs, the broad application prospects of these nanoparticles CdO NPs in extensive biomedical applications is indicated.

show abstract

“…However, in this paper, we report for the first time, the effect of 0.1M strong and weak alkaline (NaOH and NH4OH) medium used in the synthesis of CdO nanostructures and the evaluation of their morphological, microstructural and optical characteristics. Here, an optical characterization through diffuse reflectance spectroscopy (DRS) and PL for the CdO nanostructures synthesized has been carried out to evaluate the band gap (Eg) and photoluminescence emissions under a 349 nm excitation [29,9].…”

Section: Optical Group Analysismentioning

confidence: 99%

Influence of Strong and Weak Alkaline Medium on Microstructural and Morphological Investigation of Surfactant Based Synthesis of CdO Nanorods

Thangaraj¹,

Murugesan²,

Kumar³

2021

Preprint

View full text Add to dashboard Cite

A noval microwave irradiated wet chemical method was adopted to prepare cadmium oxide nanostructures by using sodium dodecyl benzenesulphonate (SDBS) as surfactant in presence of strong and weak 0.1M alkaline medium (NaOH and NH4OH). The X-ray diffraction measurement shows that the particle is crystallized in the cubic phase, average grain size of the samples are found to be in the range 54 nm for NH4OH reagant and 60 nm for NaOH reagent. The XRD pattern value based lattice constant, dislocation density, X-ray density, specific surface area, microstrain–Williamson Hall and texture coefficient have been calculated. The surface functionality of the samples were analysed by using fourier transform infrared spectroscopy. The ultra visble transmittance and K-M plot analysed from the diffuse reflection spectra and photoluminescence spectra also been calculated. The morphological changes of cadmium oxide nanostructures with strong and weak 0.1M alkaline medium are clearly recored through transmission electron miscroscopy. The reaction mechanism confirms that the experiment carried out in presence of 0.1M NaOH shows rod shaped nanostructures through four step mechanism such as hydaration, intermediate formation, metal hydroxide formation and the formation of metal oxide.

show abstract

Phytochemicals and Morphological Influence of Aloe Barbadensis Miller Extract Capped Biosynthesis of CdO Nanosticks

Cited by 12 publications

References 35 publications

One-pot phytosynthesis of nano-silver from Mentha longifolia L.: their characterization and evaluation of photodynamic potential

One-pot phytosynthesis of nano-silver from Mentha longifolia L.: their characterization and evaluation of photodynamic potential

Synthesis and characterization of microbial mediated cadmium oxide nanoparticles

Influence of Strong and Weak Alkaline Medium on Microstructural and Morphological Investigation of Surfactant Based Synthesis of CdO Nanorods

Contact Info

Product

Resources

About