CHARACTERIZATION OF CuO THIN FILMS DEPOSITION ON POROUS SILICON BY SPRAY PYROLYSIS

Khashan, Khawla S.; Hassan, Azhar I.; Addie, Ali J.

doi:10.1142/s0218625x1650044x

Cited by 32 publications

(6 citation statements)

References 18 publications

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“…There is a potential to prepare a new nanosystem, where the components are loaded on a carrier to convey ions, and CNPs are demonstrated to be a good carrier [11]. Different ways are used to produce nanostructured materials [12][13][14][15]; among them, pulsed laser ablation in liquid (PLAL) is the best method for synthesizing different types, sized, and shaped nanomaterials, in addition to other advantages like cost control and without the production for any by-product(s) and purification [16][17][18][19][20][21][22][23][24]. In addition, the NP morphology is prone to modification by using different liquids and laser parameters.…”

Section: Introductionmentioning

confidence: 99%

Copper Oxide Nanoparticle-Decorated Carbon Nanoparticle Composite Colloidal Preparation through Laser Ablation for Antimicrobial and Antiproliferative Actions against Breast Cancer Cell Line, MCF-7

Mohammed

Khashan

Jabir

et al. 2022

BioMed Research International

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Copper oxide (CuO) nanoparticle- (NP-) decorated carbon NPs (CNPs) were produced as colloidal suspension through pulsed laser ablation technique in liquid (PLAL) medium. The antimicrobial activity of the produced NPs was tested against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli), and anticancer activity was tested against breast cancer cell line, MCF-7, together with the biocompatibility assessment of these NPs. The X-ray diffraction (XRD) patterns of the obtained CNPs showed peaks at 26.58° and 43.78° (2θ) identical to (002) and (111) planes, respectively, of the carbon phases. It also displayed new peaks at 38.5° and 48.64° (2θ) after doping with CuO NPs. Transmission electron microscope (TEM) images revealed the crystalline nature with the spherical shape of the prepared CNPs with 5-40 nm diameter ranges. In addition, the NP effects on the bacterial cell walls and nucleic acid were confirmed using a scanning electron microscope (SEM) and microscopic fluorescence analysis. The NPs showed antibacterial activity through SEM examinations against the pathogenic microbial species, S. aureus and E. coli. In the cellular material release assay, the optical density of the bacterial cells, treated with NPs, displayed a significant increase with the time of exposure to NPs, and the cytotoxicity reached more than 80% of the level for the CNPs decorated with CuO NPs. The morphology of the MCF-7 cells treated with NPs decreased numbers, and the loss of contact with the surrounding cells was observed. These results confirmed that the CNPs decorated with CuO NPs have no observable side effects and can be safely used for therapeutic applications. It is also noteworthy that it is the first report of preparation of CuO NPs decorated with CNPs (CuO NPs-CNPs) by PLAL, and the produced NPs showed antimicrobial antiproliferative activities against breast cancer cell lines, MCF-7. The main advantage of the PLAL technique of synthesizing CuO NPs-CNPs provided a two-step, cost-effective, and eco-friendly method.

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Section: Introductionmentioning

confidence: 99%

Copper Oxide Nanoparticle-Decorated Carbon Nanoparticle Composite Colloidal Preparation through Laser Ablation for Antimicrobial and Antiproliferative Actions against Breast Cancer Cell Line, MCF-7

Mohammed

Khashan

Jabir

et al. 2022

BioMed Research International

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“…To date, several controlled synthesis methods for Ag NPs have been reported such as evaporation condensation, chemical reduction, sol-gel, laser ablation, electron irradiation, microwave processing, electro-chemical, photochemical, and biosynthesis [4,5]. Each method has advantages and disadvantages [6][7][8][9][10]. However, all techniques can be classified into one of two approaches: top-down or bottom-up.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial activity of silver nanoparticles created by one step nanosecond Nd: YAG laser ablation in water

Hasan¹,

Khashan²,

Hadi³

2023

Adv. Nat. Sci: Nanosci. Nanotechnol.

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The pulsed laser ablation in liquid (PLAL) technique was used to successfully synthesise silver nanoparticles (Ag NPs). With the goal of controlling their size, a laser wavelength of 1064 nm was focused on the Ag bulk target immersed in distilled water in a glass vessel with different laser fluences. The effect of laser fluence, and thus Ag NPs concentration on the bacterial pathogenic was investigated. While the Fourier-transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD) patterns confirm the presence of Ag NPs, UV–vis spectrophotometry revealed a significant absorption peak at around 405 nm, which is attributed to the obtained Ag NPs’ characteristic surface plasmon resonance (SPR) peak. The SPR peak shifted towards a shorter wavelength as the laser fluence was increased, indicating that the Ag NPs have reduced in size. The transmission electron microscopy and size distribution images of Ag NPs clearly showed the effects of laser fluence on size reduction of Ag NPs. Bacteria activity was effectively inhibited by the Ag NPs which are found to be more effective against Gram-negative (Escherichia coli) than Gram-positive strains (Streptococcus aureus). PLAL has proven to be an effective method for controlling the size of NPs, which can be used in a variety of applications.

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“…Therefore, these nanomaterials can be applied in different fields including solar cell [2], optoelectronic [3], catalyst [4], sensor [5], and medicines [6]. Different production techniques have been used for nanostructure material formation such as hydrothermal synthesis [7,8], chemical vapor deposition method [9], chemical method [10], spray pyrolysis [11], sputtering [12], and sol-gel [13] which relies on the requirements and the kind of materials. Among them, pulsed laser ablation in liquid has been employed in creating a wide range of nanostructured materials with different shapes and sizes, related to laser features such as energy, wavelength, and pulse duration [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Eco‐Friendly Synthesis of Carbon Nanoparticles by Laser Ablation in Water and Evaluation of Their Antibacterial Activity

AlMalki

Khashan

Jabir

et al. 2022

Journal of Nanomaterials

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Carbon nanomaterials are ground-breaking two-dimensional materials with a wide range of applications because of their unique properties, which include excellent optical, electrical, thermal, and mechanical capabilities; biocompatibility; and inexpensive large-scale production costs. In this study, carbon nanostructural materials (CNMs) were effectively generated using a pulsed laser ablation method on a graphite target immersed in deionized water, and their cytotoxicity and antibacterial activities were evaluated. Lasing pulse duration, ns (1064 nm) with different laser energies (60-220 mJ), was employed for irradiating the target. The formation of CNMs was analyzed using Fourier transform infrared spectroscopy, which demonstrated that C–H, C–C, C–O, and C=C bonds were successfully formed. TEM micrographs observed CNM formation with a spherical shape and size ranging from 20 to 90 nm. The absorbance was measured using UV-Vis spectroscopy; it increased with increasing laser energy showing two broad shoulders around 210 and 305 nm. Thereafter, the antibacterial activity was tested against Escherichia coli and Staphylococcus aureus using the agar method. The results indicated that CNMs fabricated at laser energy 220 mJ have the highest activity against both strains and have presented inhibition zone (IZ) of about 34 ± 1.0 mm in S. aureus and 31 ± 1.5 mm for E. coli. A comparison with CNMs prepared at 160 mJ showed an IZ of 14 mm for S. aureus and of 12 mm for E. coli due to synergistic impact, while the cellular material release analysis displayed increased release with respect to the time of exposure due to inhibition of bacterial growth.

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CHARACTERIZATION OF CuO THIN FILMS DEPOSITION ON POROUS SILICON BY SPRAY PYROLYSIS

Cited by 32 publications

References 18 publications

Copper Oxide Nanoparticle-Decorated Carbon Nanoparticle Composite Colloidal Preparation through Laser Ablation for Antimicrobial and Antiproliferative Actions against Breast Cancer Cell Line, MCF-7

Copper Oxide Nanoparticle-Decorated Carbon Nanoparticle Composite Colloidal Preparation through Laser Ablation for Antimicrobial and Antiproliferative Actions against Breast Cancer Cell Line, MCF-7

Antibacterial activity of silver nanoparticles created by one step nanosecond Nd: YAG laser ablation in water

Eco‐Friendly Synthesis of Carbon Nanoparticles by Laser Ablation in Water and Evaluation of Their Antibacterial Activity

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