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Applied Sciences
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Corrosion and Chemical Behavior of Biodegradable Materials
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Corrosion and Chemical Behavior of Biodegradable Materials

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

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 5701

Special Issue Editors

Dr. Hamdy Ibrahim

E-Mail Website
Guest Editor
Mechanical Engineering Department, The University of Tennessee, Chattanooga, TN 37402, USA
Interests: biodegradable metals; biocomposites; shape memory alloys; additive manufacturing; surface treatments; corrosion behavior of biomaterials
Special Issues, Collections and Topics in MDPI journals
Dr. Amirhesam Amerinatanzi

E-Mail Website
Guest Editor
Mechanical and Aerospace Engineering, University of Texas Arlington, Arlington, TX 76019, USA

Special Issue Information

Dear Colleagues,

The Special Issue on “Corrosion and Chemical Behavior of Biodegradable Materials” is concerned with the assessment and improvement of the chemical resistance of biodegradable materials, including biodegradable metals, bio-based polymers, and lignocellulosic biomass. The corrosion and chemical behavior of biodegradable materials has recently been an increasingly important topic towards qualifying biodegradable materials for various applications. This was substantiated due to attempts to exploit biodegradable materials in a multitude of fields, which are all relevant to chemical (or biochemical) loading. For instance, metal and polymer-based biodegradable materials are being widely investigated for biomedical applications in the form of implants and scaffolds. Chemical group concentration, pH, and enzymatic interactions will significantly alter implant behavior during implants’ operational time; moreover, they will promote/inhibit their gravimetric degradation. Another example is the use of biodegradable materials from lignocellulosic wastes in paneling, engineered wood, and mortar reinforcement applications. The aim of this collection is to address recent and upcoming methods to assess the corrosion and chemical resistivity of biodegradable materials, regarding the prementioned fields.

Examples of relevant subjects include but are not limited to the following:

  • Corrosion behavior of biodegradable metals (e.g., Mg, Zn, and Fe);
  • Bioresorbability of biodegradable metals and polymers;
  • Computer simulations of biodegradable materials corrosion behavior;
  • Chemical resistance of biopolymers;
  • Enzymatic hydrolysis of polymers;
  • Sea water resistance of natural fibers;
  • Corrosion of wood plastic composites.

Dr. Amirhesam Amerinatanzi
Dr. Hamdy Ibrahim
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

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

  • biodegradable metals
  • chemical resistance
  • biopolymers
  • lignocellulosic wastes
  • enzymatic hydrolysis

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Published Papers (2 papers)

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Research

12 pages, 2014 KiB  
Article
Spanish Poplar Biomass as a Precursor for Nanocellulose Extraction
by Sherif Mehanny, Ehab E. Abu-El Magd, Simona Sorbara, Jorge Navarro and Rodrigo Gil-San-Millan
Appl. Sci. 2021, 11(15), 6863; https://doi.org/10.3390/app11156863 - 26 Jul 2021
Cited by 22 | Viewed by 2516
Abstract
The effect of acidic hydrolysis duration on nanocellulose size, morphology, and proper ties was investigated, which opens up a whole new horizon of versatility in poplar applications. This study aimed to examine Spanish poplar wastes as raw material to extract crystalline nanocellulose (CNC), [...] Read more.
The effect of acidic hydrolysis duration on nanocellulose size, morphology, and proper ties was investigated, which opens up a whole new horizon of versatility in poplar applications. This study aimed to examine Spanish poplar wastes as raw material to extract crystalline nanocellulose (CNC), which substantiates the importance of poplar wastes. Wastes were pulped using 1 L of 10% NaOH (wt./wt.) solution, and bleached several times by NaClO2; afterwards, white wastes were subjected to acidic hydrolysis by 60% H2SO4 for either 5, 10, or 15 min. Microcrystalline cellulose (MCC) underwent a similar hydrolysis protocol as poplar as control. TEM, IR, and XRD characterization techniques were performed. Poplar based nanocellulose sized 219 nm length and 69 nm width after 15 min acidic hydrolysis. MCC yielded 122 nm length and 12 nm width crystals after 10 min acidic hydrolysis. Hydrolysis resulted in a drastic change and intense peaks at 3500 and 2900 cm−1 for nanocellulose. Although pre-hydrolysis fiber treatment was not influencial on the crystallinity of poplar, acidic hydrolysis remarkably raised the crystallinity index (CI) by 7–8%. The more hydrolysis duration was prolonged, the size of the resulting crystal (whisker) decreased, and the aspect ratio increased. Hydrolysis was more impactful on MCC than poplar. However, for future work, it seems that longer duration of pulping and bleaching could have significantly removed unwanted components (hemicellulose and lignin), showcased in IR and XRD, and hence smoothened the following hydrolysis. Full article
(This article belongs to the Special Issue Corrosion and Chemical Behavior of Biodegradable Materials)
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13 pages, 5646 KiB  
Article
A Physical Approach to Simulate the Corrosion of Ceramic-Coated Magnesium Implants
by Moataz Abdalla and Hamdy Ibrahim
Appl. Sci. 2021, 11(15), 6724; https://doi.org/10.3390/app11156724 - 22 Jul 2021
Cited by 3 | Viewed by 2480
Abstract
Magnesium-based biodegradable materials are currently of great interest in various biomedical applications, especially those related to the treatment of bone trauma and the manufacturing of bone implants. Due to the complexity of the degradation process of magnesium, several numerical models were developed to [...] Read more.
Magnesium-based biodegradable materials are currently of great interest in various biomedical applications, especially those related to the treatment of bone trauma and the manufacturing of bone implants. Due to the complexity of the degradation process of magnesium, several numerical models were developed to help predict the change of the implant’s integrity in the body using in vitro tests. In this study, experimental in vitro tests and finite element methods are combined to calibrate a diffusion-based model of the uniform galvanic corrosion of high purity magnesium (HP-Mg). In addition, and for the first time, the impact of a porous coating layer generated by the Micro Arc oxidation (MAO) method is investigated and incorporated into the model. The calibrated model parameters are validated using the same immersion test conditions on a near-standard of treatment screws geometry made of HP-Mg. Full article
(This article belongs to the Special Issue Corrosion and Chemical Behavior of Biodegradable Materials)
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