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Biomimetics
Special Issues
Chitin and Chitosan Materials for Tomorrow
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Chitin and Chitosan Materials for Tomorrow

A special issue of Biomimetics (ISSN 2313-7673). This special issue belongs to the section "Biomimetics of Materials and Structures".

Deadline for manuscript submissions: 15 March 2025 | Viewed by 1172

Special Issue Editor

Dr. Guilhem Godeau

E-Mail Website
Guest Editor
Institut de Physique de Nice (INPHYNI), UMR 7010, Université Côte d’Azur (UCA), Nice, France
Interests: material sciences; organic chemistry; biomolecule extraction; bioinspiration; bio-sourced materials; biomacromolecules; beetle; plant; water harvesting; surface post-functionalization; 3D printing; hydrogel preparation; nanomaterials; magnetic particles
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Chitin is one of the most abundant biopolymers present in nature. Chemically speaking, chitin can be described as a linear polymer (polysaccharide) of β-1,4 linked N-acetylglucosamine. As a chemical, chitin is difficult to use due to its poor solubility in most common organic solvents. Typically, in order to avoid this issue regarding solubility, chitin is deacetylated prior to industrial use. A chitin with a deacetylation degree higher than 50% is referred to as chitosan. Due to the free amine groups released during deacetylation, chitosan is completely soluble in acidic water, unlike chitin.

Due to their abundance and properties, chitin and chitosan have emerged as materials of particular interest due to their application in the field of sustainable development. Chitin and chitosan have thus been employed extensively in the industrial and medical fields.

The objective of this Special Issue is to highlight various aspects of research in this innovative area. The scope of this Special Issue includes, but is not limited to, the following topics:

  • New sources of chitin
  • New extraction strategies
  • New applications based on chitin and/or chitosan
  • New materials based on or inspired by chitin or chitosan.

This Special Issue will be an opportunity to compile contributions from leading experts in the field and to motivate the participation of new experts.

Dr. Guilhem Godeau
Guest Editor

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. Biomimetics is an international peer-reviewed open access monthly 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 2200 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

  • chitin
  • chitosan
  • crustacean
  • mushroom
  • insects
  • biomacromolecules extraction
  • sustainable materials
  • hydrogel
  • 3D printing
  • biomedical applications
  • food packaging
  • food supplements
  • textile

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Published Papers (2 papers)

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Research

18 pages, 3372 KiB  
Article
Hybrid Chitosan Biosorbents: Tunable Adsorption at Surface and Micropore Domains
by Inimfon A. Udoetok, Mohamed H. Mohamed and Lee D. Wilson
Biomimetics 2024, 9(12), 725; https://doi.org/10.3390/biomimetics9120725 - 24 Nov 2024
Viewed by 355
Abstract
Herein, we report a study that provides new insight on the knowledge gaps that relate to the role of biopolymer structure and adsorption properties for chitosan adsorbents that are cross-linked with glutaraldehyde. The systematic modification of chitosan cross-linked with glutaraldehyde (CG) and its [...] Read more.
Herein, we report a study that provides new insight on the knowledge gaps that relate to the role of biopolymer structure and adsorption properties for chitosan adsorbents that are cross-linked with glutaraldehyde. The systematic modification of chitosan cross-linked with glutaraldehyde (CG) and its quaternized forms (QCG) was studied in relation to the reaction conditions: mole ratios of reactants and pH conditions. Complementary adsorbent characterization employed 13C NMR/FTIR spectroscopy, TGA and DSC, point-zero-charge (PZC), solvent swelling, and sorption studies using selected dye probes. The spectral and thermal techniques provide complementary evidence that affirm the key role of cross-linker content and quaternization on variation of the physicochemical properties of chitosan. The PZC results reveal a neutral surface charge for the modified materials between pH 6.0 to 6.3 ± 0.3, as compared with pH 8.7 ± 0.4 for pristine chitosan. Solvent swelling in water decreased with greater cross-linking, while the QCG materials had greater swelling over CG materials due to enhanced hydration. The adsorption results reveal variable dye uptake properties according to the cross-linker content. Similarly, surface versus micropore adsorption was demonstrated, according to the nature and ionization state of the dye for the modified adsorbents, where the CG and QCG materials had tunable sorption properties that exceeded that of unmodified chitosan. A key step in tuning the structure and surface chemical properties of cross-linked chitosan involves pH control during synthesis. The facile tunability of the physicochemical properties of the modified biopolymers reported herein means that they possess features of biomimetics that are relevant to advanced drug delivery, antimicrobial materials for wound healing, biosensors, and biosorbents for biomedical applications. Full article
(This article belongs to the Special Issue Chitin and Chitosan Materials for Tomorrow)
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15 pages, 6834 KiB  
Article
Investigation of 9 True Weevil (Curculionidae Latreille, 1802) Species for Chitin Extraction
by Zhenying Mei, Luc Vincent, Caroline R. Szczepanski, René-Paul Godeau, Pavel Kuzhir and Guilhem Godeau
Biomimetics 2024, 9(10), 608; https://doi.org/10.3390/biomimetics9100608 - 8 Oct 2024
Viewed by 625
Abstract
Chitin, the second most abundant biopolymer after cellulose, is an important resource for biosourced materials. The global demand for chitin is rapidly increasing, however, the majority of industrial chitin is sourced from crustacean shells, which may be less accessible in regions without seafood [...] Read more.
Chitin, the second most abundant biopolymer after cellulose, is an important resource for biosourced materials. The global demand for chitin is rapidly increasing, however, the majority of industrial chitin is sourced from crustacean shells, which may be less accessible in regions without seafood waste. Therefore, it is crucial to explore alternative chitin sources, such as those derived from beetles and other arthropods. This study investigated chitin extraction from nine species of Curculionidae (true weevils), which are recognized as crop pests. The extraction process and yields were described, and the isolated chitin was characterized by SEM, IR spectroscopy, elemental analysis, XRD, and ash and water content measurements. This work highlights the potential of Curculionidae as an alternative chitin source. Full article
(This article belongs to the Special Issue Chitin and Chitosan Materials for Tomorrow)
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