Measurement of Electron Density from Stark-Broadened Nanomaterial Plasma

Am, El Sherbini; Parigger, Christian G.

doi:10.20944/preprints201808.0003.v1

Cited by 5 publications

(8 citation statements)

References 7 publications

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“…Development of sterile inert type I collagen sponge, of fish-origin like kolspon had been successfully used in many studies including that one; due to its biocompatibility and good absorbing characteristics. Those findings were in agreement with Fouda TA, et al; 2015 and Punde P, et al; 2020 (25,26) .…”

Section: Discussionsupporting

confidence: 90%

Clinical Finding of Inert Collagen Sponge Saturated by Remineralizing Solution from Eggshell Powder versus Ca-OH in Indirect Pulp Capping Measured by Cone Beam Computed Tomography Radiograph

Essa

salem

hammad

2023

Egyptian Dental Journal

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Objective of the study was to evaluate the remineralizing effect of a prepared chicken eggshell powder (CESP) containing solution on human dentine and to compare it to that of light curing calcium hydroxide (Ca-OH) cavity liner. Chicken eggshell powder was prepared, characterized using a scanning electron microscope (SEM) and an energy-dispersive X-ray spectroscopy (EDX). A total of 24 patients were selected from operative dentistry clinic, each patient had at least two occlusal deep carious defects in permanent premolars or molars. After complete caries excavation, the 48 teeth were divided into two groups (n = 24): according to the received treatment: eggshell collagen delivering device (group 1) and light curing Ca-OH (group 2) as indirect direct pulp capping biomaterials. Teeth were then restored by a reinforced glass ionomer base and a permanent resin-based composite (RBC) filling. Cone beam computed tomography (CBCT) radiographs were used to evaluate and compare the variation in thickness of inducted dentine bridge immediately after insertion of final restoration and after 6months to evaluate thickness of dentine bridge finally the measurements were statistically evaluated by paired t test. Results showed that the group of teeth treated by pulp capping using the prepared remineralizing eggshell delivered by kolspon sponge showed a significantly higher thickness of dentin bridge formation than the group that was managed by application of conventional Ca-OH pulp capping agent. Concluding that A prepared chicken eggshell powder (CESP) in reminerization solution loaded into a collagen kolspon sponge might serve successfully in induction of newly formed reparative dentine bridge.

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Section: Discussionsupporting

confidence: 90%

Clinical Finding of Inert Collagen Sponge Saturated by Remineralizing Solution from Eggshell Powder versus Ca-OH in Indirect Pulp Capping Measured by Cone Beam Computed Tomography Radiograph

Essa

salem

hammad

2023

Egyptian Dental Journal

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“…We utilized the same experimental setup reported in previous articles [13][14][15][16]. It comprised of a Nd:YAG laser (type Quantel-Brilliant B) working at the fundamental wavelength of 1064 nm and two other harmonics at 352 and 355 nm.…”

Section: Experiments Setupmentioning

confidence: 99%

“…Thereupon, the plasma threshold was theoretically correlated to the size (diameter) of the nanomaterial via an empirical relation [15]. Moreover, the effect of incident laser wavelength on the plasma ignition threshold during data processing and modeling was addressed [14][15][16]. Furthermore, around two orders of magnitude enhanced plasma emission was achieved with the addition of a thin layer of silver nanomaterials to the surface of metal samples [17].…”

Section: Introductionmentioning

confidence: 99%

Plasma ignition threshold disparity between silver nanoparticle-based target and bulk silver target at different laser wavelengths

Sherbini¹,

Hagrass²,

Rizk³

et al. 2018

Plasma Sci. Technol.

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Plasma ignition threshold of nanoparticle-based and bulk silver targets was measured in air. The plasma was initiated by a Nd:YAG laser at wavelengths of 355, 532, and 1064 nm. The plasma ignition was monitored utilizing the prominent Ag I line at 546.5 nm. Lower ignition thresholds of the nanoparticle-based silver target were estimated at 0.4±0.02, 0.34±0.04, and 0.27±0.035 J cm −2 coupled with the different laser wavelengths, respectively. In contrast, the bulk silver target plasma exhibited an order of magnitude higher ignition threshold. A three orders of magnitude enhanced emission intensity from the nano-based target over the bulk target was achieved at lower levels of laser irradiation. A reduction of the thermal diffusion length of the nanosilver was assumed in order to theoretically predict this reduction in the plasma threshold. In addition, the effect of self-reversal on the resonance lines was taken into consideration.

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“…The pre-exponential factors (A) and show the same trend. The increase in , in the oil presence, may be interpreted as the likely specific interaction between the iron surface and aroma compounds [22], that occurs in the first stage [23]. The increase in activation energy can be attributed to an appreciable decrease in the adsorption of the aroma compounds onto the mild steel surface with an increase in temperature.…”

Section: Thermodynamic Parametersmentioning

confidence: 99%

The Inhibition Action of Essential Oil of J. Juniperus Phoenicea on the Corrosion of Mild Steel in Acidic Media

Elkhotfi¹,

Forsal²,

Rakib³

et al. 2018

Port. Electrochim. Acta

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Essential oil of Juniperus phoenicea (Cupressaceae) is extracted from the natural plant collected in Morocco. Extracted by distillation, its inhibiting action on the corrosion of mild steel in 1 M acidic media has been investigated by weight loss and various electrochemical techniques. Obtained results reveal that this naturally occurring substance is a very good inhibitor. The inhibition efficiency was found to increase with the oil content, attaining 83% at 1500 ppm. The oil of Juniperus phoenicea acts as a mixed-type inhibitor. The adsorption isotherm and the thermodynamic data of adsorption and activation are herein determined and discussed.

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Measurement of Electron Density from Stark-Broadened Nanomaterial Plasma

Cited by 5 publications

References 7 publications

Clinical Finding of Inert Collagen Sponge Saturated by Remineralizing Solution from Eggshell Powder versus Ca-OH in Indirect Pulp Capping Measured by Cone Beam Computed Tomography Radiograph

Clinical Finding of Inert Collagen Sponge Saturated by Remineralizing Solution from Eggshell Powder versus Ca-OH in Indirect Pulp Capping Measured by Cone Beam Computed Tomography Radiograph

Plasma ignition threshold disparity between silver nanoparticle-based target and bulk silver target at different laser wavelengths

The Inhibition Action of Essential Oil of J. Juniperus Phoenicea on the Corrosion of Mild Steel in Acidic Media

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