The Effect of the Ionizing Radiation on Hydroxyapatite–Polydimethylsiloxane Layers

Groza, Andreea; Iconaru, Simona Liliana; Jiga, Gabriel; Chapon, Patrick; Gaiaschi, Sofia; Verga, Nicolae; Beuran, Mircea; Продан, А. М.; Matei, Mihai; Marinescu, Serban Andrei; Trușcă, Roxana; Predoi, Daniela

doi:10.1002/pen.25247

Cited by 9 publications

(7 citation statements)

References 31 publications

(50 reference statements)

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“…In our previous work [24], we have studied the modifications induced by a 2 Gy Xray radiation dose on hydroxyapatite-polydimethylsiloxane composite layers. The depth profile analysis showed the depletion of Ca, P, C, O, Si, and H elements from the layers due to layer exfoliation.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Electron Beam Irradiation on the Morphological and Physicochemical Properties of Magnesium-Doped Hydroxyapatite/Chitosan Composite Coatings

et al. 2022

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This work reports on the influence of 5 MeV electron beam radiations on the morphological features and chemical structure of magnesium-doped hydroxyapatite/chitosan composite coatings generated by the magnetron sputtering technique. The exposure to ionizing radiation in a linear electron accelerator dedicated to medical use has been performed in a controllable manner by delivering up to 50 Gy radiation dose in fractions of 2 Gy radiation dose per 40 s. After the irradiation with electron beams, the surface of layers became nano-size structured. The partial detachment of irradiated layers from the substrates has been revealed only after visualizing their cross sections by scanning electron microscopy. The energy dispersive X-ray spectral analysis of layer cross-sections indicated that the distribution of chemical elements in the samples depends on the radiation dose. The X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and X-ray diffraction analysis have shown that the physicochemical processes induced by the ionizing radiation in the magnesium doped hydroxyapatite/chitosan composite coatings do not alter the apatite structure, and Mg remains bonded with the phosphate groups.

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Section: Introductionmentioning

confidence: 99%

The Effects of Electron Beam Irradiation on the Morphological and Physicochemical Properties of Magnesium-Doped Hydroxyapatite/Chitosan Composite Coatings

et al. 2022

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“…Damage-associated molecular patterns (DAMPs) and pathogen-associated molecular patterns (PAMPs) are molecules specifically designed to respond rapidly to injury or infection to maintain the body’s homeostasis. PAMPs are exclusively microbial molecules that, once identified, alert the human organism, while DAMPs are similar but are produced solely as a consequence of endogenous damage [ 53 ]. Toll-like receptors (TLRs) are the receptors through which DAMPs and PAMPs initiate the inflammatory innate immune response [ 54 ].…”

Section: Resultsmentioning

confidence: 99%

Prediction of Subclinical and Clinical Multiple Organ Failure Dysfunction in Breast Cancer Patients—A Review Using AI Tools

Ionescu (Miron),

Atasiei,

Ionescu

et al. 2024

Cancers

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This review explores the interconnection between precursor lesions of breast cancer (typical ductal hyperplasia, atypical ductal/lobular hyperplasia) and the subclinical of multiple organ failure syndrome, both representing early stages marked by alterations preceding clinical symptoms, undetectable through conventional diagnostic methods. Addressing the question “Why patients with breast cancer exhibit a tendency to deteriorate”, this study investigates the biological progression from a subclinical multiple organ failure syndrome, characterized by insidious but indisputable lesions, to an acute (clinical) state resembling a cascade akin to a waterfall or domino effect, often culminating in the patient’s demise. A comprehensive literature search was conducted using PubMed, Google Scholar, and Scopus databases in October 2023, employing keywords such as “MODS”, “SIRS”, “sepsis”, “pathophysiology of MODS”, “MODS in cancer patients”, “multiple organ failure”, “risk factors”, “cancer”, “ICU”, “quality of life”, and “breast cancer”. Supplementary references were extracted from the retrieved articles. This study emphasizes the importance of early identification and prevention of the multiple organ failure cascade at the inception of the malignant state, aiming to enhance the quality of life and extend survival. This pursuit contributes to a deeper understanding of risk factors and viable therapeutic options. Despite the existence of the subclinical multiple organ failure syndrome, current diagnostic methodologies remain inadequate, prompting consideration of AI as an increasingly crucial tool for early identification in the diagnostic process.

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“…SEM-EDX analysis , was used to evidence the influence of the electrodeposition parameters in the Co–Sb alloy composition, see Figures –. The SEM micrographs suggest the formation of two types of morphologies, NWs and semispherical nano/micromushroom caps, with larger diameters compared to nanowires.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Co–Sb Junction Nanowires by Galvanostatic Electrodeposition

Enache,

State,

Mihai

et al. 2024

Langmuir

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This work presents the synthesis of CoSb 3 one-dimensional (1D) thermoelectric nanomaterials using electrodeposition under galvanostatic conditions and polycarbonate membranes as a template (50 nm diameter pores). Cyclic voltammetry measurements have been performed to get preliminary information on the electrochemical reduction process of the involved species. Different current density values in the range 1−4 mA cm −2 have been applied, leading to the formation of nanowires (NWs) and micro-and nanomushroom caps, as evidenced by the scanning electron microscopy and scanning transmission electron microscopy investigations. Through fine-tuning of the current density the desired Co/Sb atomic ratio could be achieved. Energydispersive X-ray spectroscopy analysis showed the formation of CoSb 3 at 1.4 mA cm −2 , and it has also been confirmed by high-resolution transmission electron microscopy and micro-Raman spectroscopy. In this work, we present for the first time the fabrication of a CoSb 3 −Co x Sb y heterojunction on the same NW exhibiting Sbrich and Co-rich alloy segments, prepared by electrodeposition from the same electrolyte by simply varying the applied current density.

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The Effect of the Ionizing Radiation on Hydroxyapatite–Polydimethylsiloxane Layers

Cited by 9 publications

References 31 publications

The Effects of Electron Beam Irradiation on the Morphological and Physicochemical Properties of Magnesium-Doped Hydroxyapatite/Chitosan Composite Coatings

The Effects of Electron Beam Irradiation on the Morphological and Physicochemical Properties of Magnesium-Doped Hydroxyapatite/Chitosan Composite Coatings

Prediction of Subclinical and Clinical Multiple Organ Failure Dysfunction in Breast Cancer Patients—A Review Using AI Tools

Fabrication of Co–Sb Junction Nanowires by Galvanostatic Electrodeposition

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