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Advanced Alloys for Biomedical Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Biosciences and Bioengineering".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 5030

Special Issue Editor


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Guest Editor
Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
Interests: thin films and nanotechnology; nanomaterials synthesis; material characterization; X-ray diffraction; gas sensors; mesoporous materials
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Special Issue Information

Dear Colleagues,

Alloys are used in medicine for a wide range of applications, especially in cardiology, dentistry, and orthopedics: stents, catheters, wires, needles, implants or joint replacements to name a few. In spite of the very varied demands, there are only a few metallic alloys that meet the minimal requirements of nontoxicity and biocompatibility, for example, Ti(Nb, Ta), Mg(Zn), CoCr, and stainless steel. Once additional functional requirements are considered, such as corrosion resistance inside the human body, mechanical properties similar to those of bones or bioactivity, long-term functionality ,and generally speaking ever-growing demands for a better, healthy life, the development of a novel biomedical use becomes indeed a complex, multidisciplinary challenge in which materials scientists and technologists, as well as healthcare specialists, must attain the targeted bulk mechanical properties for the desired shapes and sizes and concomitantly confer the most suitable physicochemical properties to the surface, as the biomaterial surface is largely responsible for suitable interaction with the surrounding living tissue and fluids.

Therefore, practically every application requires the development of a specific material, which can be identified not by the component alloy, but by a whole set of bulk and surface structures and properties. The aim of this Special Issue is to offer researchers involved in the development of advanced medical materials a medium for presenting and disseminating original contributions in the field, especially novel approaches integrating added functionalities.

Dr. Jose Maria Calderon-Moreno
Guest Editor

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • titanium
  • magnesium
  • cobalt-chromium
  • stainless steel
  • implants
  • bioactivity
  • cytocompatibility
  • long-term behavior
  • sensors
  • electrodes

Published Papers (1 paper)

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Research

14 pages, 3887 KiB  
Article
Evaluation of Radiation Shielding Features of Co and Ni-Based Superalloys Using MCNP-5 Code: Potential Use in Nuclear Safety
by M. I. Sayyed, Faras Q. Mohammed, K. A. Mahmoud, Eloic Lacomme, Kawa M. Kaky, Mayeen Uddin Khandaker and Mohammad Rashed Iqbal Faruque
Appl. Sci. 2020, 10(21), 7680; https://doi.org/10.3390/app10217680 - 30 Oct 2020
Cited by 58 | Viewed by 4421
Abstract
Due to their excellent heat resistance, superalloys are used predominantly in the manufacturing of engine parts and accessories for aircraft and aerospace equipment. The Monte Carlo simulation (MCNP-5) code was performed to estimate the mean track length of the incident photons inside six [...] Read more.
Due to their excellent heat resistance, superalloys are used predominantly in the manufacturing of engine parts and accessories for aircraft and aerospace equipment. The Monte Carlo simulation (MCNP-5) code was performed to estimate the mean track length of the incident photons inside six different alloys. Then, based on the simulated track length, other important γ-ray shielding parameters were calculated. In this study, the highest mass attenuation coefficient was obtained for alloys encoded MAR-302 and MAR-247 and varied in the range 0.035–72.94 and 0.035–71.98 cm2·g−1, respectively. The lowest mass attenuation coefficient was found for alloys coded Inconel-718 and Nimocast-75 with a range of 0.033–59.25 and 0.32–59.30 cm2·g−1, respectively. Use was made of a recently developed online program Phy-X/PD to calculate the effective atomic number, equivalent atomic number, and the buildup factors for the alloys of interest. The effective removal cross-section for the fast neutron was also calculated for the studied alloys: the highest value was found for the alloys coded with Inconel-718 (∑R = 0.01945 cm2·g−1) and Nimocast-75 (∑R = 0.01940 cm2·g−1), and the lowest value was obtained for alloy coded MAR-302 (∑R = 0.01841 cm2·g−1). Calculated data indicate that MAR-302 and MAR-247 are superior candidates for shielding of gamma-rays, while Inconel-718 and Nimocast-75 MAR-302 are suitable for the shielding of fast neutrons. Full article
(This article belongs to the Special Issue Advanced Alloys for Biomedical Applications)
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