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Materials, Volume 13, Issue 16

August-2 2020 - 214 articles

Cover Story: Hyaluronic acid, curcumin, and usnic acid are separately utilized as effective biological agents in medicine, and materials based on their blending have wider therapeutic effects than individual ones. In this study, for the first time, native hyaluronic acid-based nanofibers containing curcumin and usnic acid were successfully prepared by the electrospinning technique. Additionally, unstable and hydrophobic curcumin and usnic acid were loaded into the hydrophilic hyaluronic acid matrix without utilizing the activating (catalyzing) agents. The investigation of fibers based on pure hyaluronic acid with active pharmaceutical ingredients will lay the groundwork for the development of highly effective wound dressings with transdermal drug delivery. View this paper
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Articles (214)

  • Article
  • Open Access
13 Citations
3,483 Views
14 Pages

18 August 2020

The 1060 aluminum and T2 copper were joined by the pulsed double electrode gas metal arc welding (DE-GMAW) brazing method by using four types of filler wires, namely pure aluminum (Al) ER1100, aluminum-magnesium (Al–Mg) ER5356, aluminum-silicon...

  • Article
  • Open Access
11 Citations
3,782 Views
11 Pages

18 August 2020

The local regeneration of bone defects is regulated by general hormone, enzyme, ion, and vitamin levels. General diseases and dysregulation of the human mineral system can impact this process, even in alveolar crest. The aim of this study is to inves...

  • Article
  • Open Access
6 Citations
3,197 Views
12 Pages

Nitrogen-Enriched Cr1−xAlxN Multilayer-Like Coatings Manufactured by Dynamic Glancing Angle Direct Current Magnetron Sputtering

  • Pedro Renato Tavares Avila,
  • Alisson Mendes Rodrigues,
  • Monica Costa Rodrigues Guimarães,
  • Magdalena Walczak,
  • Romualdo Rodrigues Menezes,
  • Gelmires de Araújo Neves and
  • Haroldo Cavalcanti Pinto

18 August 2020

Multilayer-like CrN and Cr1−xAlxN coatings with different Al contents were deposited onto a stainless steel substrate using dynamic glancing angle deposition direct current magnetron sputtering (DGLAD dcMS) in a N rich atmosphere to understand...

  • Article
  • Open Access
22 Citations
3,824 Views
24 Pages

18 August 2020

The article describes interdisciplinary and comprehensive non-destructive diagnostic tests of final bridge inspection and acceptance proposed for a soil-steel bridge made of corrugated sheets, being the European span length record holder (25.74 m). A...

  • Article
  • Open Access
17 Citations
3,921 Views
16 Pages

Influence of Rare Earth Element (Y) on Microstructure and Corrosion Behavior of Hot Extrusion AZ91 Magnesium Alloy

  • Yanan Cui,
  • Yonghai Wang,
  • Zhongyu Cui,
  • Wenlong Qi,
  • Jidong Wang,
  • Pengfei Ju,
  • Yang Zhao,
  • Bin Liu,
  • Tao Zhang and
  • Fuhui Wang

18 August 2020

The influence of rare earth element (RE) Y on the microstructure and corrosion behavior of extruded AZ91 Mg alloy was surveyed via morphology characterization and corrosion performance measurements. The results indicate the corrosion resistance of th...

  • Article
  • Open Access
8 Citations
2,941 Views
20 Pages

The Effect of Electrolytic Hydrogenation on Mechanical Properties of T92 Steel Weldments under Different PWHT Conditions

  • Lucia Čiripová,
  • Ladislav Falat,
  • Viera Homolová,
  • Miroslav Džupon,
  • Róbert Džunda and
  • Ivo Dlouhý

18 August 2020

In the present work, the effects of electrolytic hydrogen charging of T92 steel weldments on their room-temperature tensile properties were investigated. Two circumferential weldments between the T92 grade tubes were produced by gas tungsten arc weld...

  • Article
  • Open Access
9 Citations
3,286 Views
13 Pages

Reversible Aggregation of Molecular-Like Fluorophores Driven by Extreme pH in Carbon Dots

  • Stefania Mura,
  • Luigi Stagi,
  • Robert Ludmerczki,
  • Luca Malfatti and
  • Plinio Innocenzi

18 August 2020

The origin of carbon-dots (C-dots) fluorescence and its correlation with the dots structure still lack a comprehensive model. In particular, the core-shell model does not always fit with the experimental results, which, in some cases, suggest a molec...

  • Article
  • Open Access
13 Citations
3,539 Views
12 Pages

Effect of pH Cycling Frequency on Glass–Ceramic Corrosion

  • Shu-Min Hsu,
  • Fan Ren,
  • Christopher D. Batich,
  • Arthur E. Clark,
  • Dan Neal and
  • Josephine F. Esquivel-Upshaw

18 August 2020

The effect of pH changes on the chemical durability of dental glass–ceramic materials was evaluated using weight loss and ion release levels. The hypothesis that increased pH changes will exhibit greater corrosion was investigated. The ion conc...

  • Article
  • Open Access
6 Citations
3,566 Views
17 Pages

Analysis of the Physicochemical and Mineralogical Properties of the Materials Used in the Preparation of Recoblocks

  • María Neftalí Rojas-Valencia,
  • José Alberto Lopez-López,
  • Denise Yeazul Fernández-Rojas,
  • José Manuel Gómez-Soberón and
  • Mabel Vaca-Mier

17 August 2020

The construction sector generates 14,000 t/d of construction waste in Mexico City, these materials do not have real applications and end up accumulating in landfills. This work, the objective of which was to analyze the physicochemical and mineralogi...

  • Article
  • Open Access
10 Citations
3,419 Views
13 Pages

Dynamics Studies of Nitrogen Interstitial in GaN from Ab Initio Calculations

  • Huan He,
  • Wenbo Liu,
  • Pengbo Zhang,
  • Wenlong Liao,
  • Dayin Tong,
  • Lin Yang,
  • Chaohui He,
  • Hang Zang and
  • Hongxiang Zong

17 August 2020

Understanding the properties of defects is crucial to design higher performance semiconductor materials because they influence the electronic and optical properties significantly. Using ab initio calculations, the dynamics properties of nitrogen inte...

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Materials - ISSN 1996-1944