Mesoporous Ag@WO3 core–shell, an investigation at different concentrated environment employing laser ablation in liquid

Evan T. Salim; Jehan A. Saimon; Maryam S. Muhsin; Makram A. Fakhri; Mustafa Hadi Amin; Ahmad S. Azzahrani; Raed Khalid Ibrahim

doi:10.1038/s41598-024-55146-x

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Publication Date

Tue Mar 05 2024

Journal Name

Scientific Reports

Volume

14

DOI

10.1038/s41598-024-55146-x

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Mesoporous Ag@WO3 core–shell, an investigation at different concentrated environment employing laser ablation in liquid

Ag NPs

Core–shell

Laser ablation

Nanoparticles

PLAL

WO3 NPs

Evan T. Salim

Jehan A. Saimon

Maryam S. Muhsin

Makram A. Fakhri

Mustafa Hadi Amin

Ahmad S. Azzahrani

Raed Khalid Ibrahim

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AbstractIn this study, silver-tungsten oxide core–shell nanoparticles (Ag–WO3 NPs) were synthesized by pulsed laser ablation in liquid employing a (1.06 µm) Q-switched Nd:YAG laser, at different Ag colloidal concentration environment (different core concentration). The produced Ag–WO3 core–shell NPs were subjected to characterization using UV–visible spectrophotometry, X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive spectroscopy, electrical analysis, and photoluminescence PL. The UV–visible spectra exhibited distinct absorption peaks at around 200 and 405 nm, which attributed to the occurrence of surface Plasmon resonance of Ag NPs and WO3 NPs, respectively. The absorbance values of the Ag–WO3 core–shell NPs increased as the core concentrations rose, while the band gap decreased by 2.73–2.5 eV, The (PL) results exhibited prominent peaks with a central wavelength of 456, 458, 458, 464, and 466 nm. Additionally, the PL intensity of the Ag–WO3-NP samples increased proportionally with the concentration of the core. Furthermore, the redshift seen at the peak of the PL emission band may be attributed to the quantum confinement effect. EDX analysis can verify the creation process of the Ag–WO3 core–shell nanostructure. XRD analysis confirms the presence of Ag and WO3 (NPs). The TEM images provided a good visualization of the core-spherical shell structure of the Ag–WO3 core–shell NPs. The average size of the particles ranged from 30.5 to 89 (nm). The electrical characteristics showed an increase in electrical conductivity from (5.89 × 10−4) (Ω cm)−1 to (9.91 × 10−4) (Ω cm)−1, with a drop in average activation energy values of (0.155 eV) and (0.084 eV) at a concentration of 1.6 μg/mL of silver.

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Publication Date

Sun Oct 01 2023

Journal Name

Baghdad Science Journal

Green synthesis of CdS:Sn NPs by Starch as a Covering Agent and Studying its Physical Properties

doped with Sn

Green syntheses from starch

Sn Doped CdS Nanoparticles

SEM

UV and particle size analyzer.

zainab

Nada K.

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The aim of this research is to employ starch as a stabilizing and reducing agent in the production of CdS nanoparticles with less environmental risk, easy scaling, stability, economical feasibility, and suitability for large-scale production. Nanoparticles of CdS have been successfully produced by employing starch as a reducing agent in a simple green synthesis technique and then doped with Sn in certain proportions (1%, 2%, 3%, 4%, and 5%).According to the XRD data, the samples were crystallized in a hexagonal pattern, because the average crystal size of pure CdS is 5.6nm and fluctuates in response to the changes in doping concentration 1, 2, 3, 4, 5 %wt Sn, to become 4.8, 3.9, 11.5, 13.1, 9.3 nm respectively. An increase in crystal

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Publication Date

Fri Jun 17 2022

Journal Name

Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)

Development of 5-FU Loaded poly lactic-co-glycolic acid Nanoparticles for Treatment of Lung Cancer

Non-small cell lung cancer (NSCLC)

5-FU

PLGA

Polymeric nanoparticles

A549 Isogenic Cell line

IC50 value

Sankha

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Non-Small Cell Lung Cancer (NSCLC) accounts for about 84% of all lung cancer types diagnosed so far. Every year, regardless of gender, the NSCLC targets many communities worldwide. 5-Fluorouracil (5-FU) is a uracil-analog anticancer compound. This drug tends to annihilate multiple tumour cells. But 5-FU's most significant obstacle is that it gets very easily metabolized in the blood, which eventually leads to lower anticancer activity. Therfore a perfect drug delivery system is needed to overcome all the associated challenges.

In this experiment, an attempt was made to prepare 5-FU loaded poly lactic-co-glycolic acid nanoparticles using solvent evaporation method and subsequently observed the effect of molecular weight of poly l

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