Special Issue "Chitin- and Chitosan-Based Composite Materials"

A special issue of Biomimetics (ISSN 2313-7673).

Deadline for manuscript submissions: 15 November 2018

Special Issue Editors

Guest Editor
Dr. Inmaculada Aranaz Corral

Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Complutense University of Madrid (UCM), Spain
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Interests: natural polymers (chitin, chitosan, alginates); chitosan derivatives; functional characterization; synthetic polymers; green processes; polymer networks; biomaterials; drug delivery
Guest Editor
Dr. Florentina Niuris Acosta Contreras

Department of Chemistry in Pharmaceutical Sciences. Faculty of Pharmacy, Complutense University of Madrid (UCM), Spain
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Interests: biopolymers; chitosan derivatives; physico-chemical and functional characterization; green processes; polymer networks; biomaterials; drug delivery; pharmaceutical formulation

Special Issue Information

Dear Colleagues,

Chitin and its deacetylated derivative, chitosan, are a family of copolymers composed of poly β-1,4 linked D-glucosamine and N-acetyl-D-glucosamine. These polymers exhibit a large number of biological (non-toxicity, bioactivity, biocompatibility and biodegradability among others) and technological properties that are of interest in different fields, such as biomedicine, agriculture, biotechnology or the textile industry. Moreover, chitin, chitosan and their derivatives can be processed into different forms such as micro- and nanoparticles, fibers, films or scaffolds. These structures are compatible with other types of materials like metallic or magnetic nanoparticles, carbonous or inorganic materials. Therefore, a myriad of composites based on chitinous materials can be easily produced with interesting properties.

This Special Issue aims to collect the contributions from researchers from different fields with a common interest in chitin- and chitosan-based materials. Due to the strong relationship between polymer physico-chemical properties and functional behavior, researchers are encouraged to include detailed methods for polymer characterization.

Dr. Inmaculada Aranaz Corral
Dr. Florentina Niuris Acosta Contreras
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 papers will be 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 quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) is waived for well-prepared manuscripts submitted to this issue. 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

  • metallic nanoparticles
  • magnetic nanoparticles
  • carbon nanofibers
  • carbon nanotubes
  • hydroxyapatite
  • bioglass
  • drug delivery
  • clays
  • bioplastics

Published Papers (1 paper)

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Research

Open AccessArticle On the Ability of Low Molecular Weight Chitosan Enzymatically Depolymerized to Produce and Stabilize Silver Nanoparticles
Biomimetics 2018, 3(3), 21; https://doi.org/10.3390/biomimetics3030021
Received: 11 July 2018 / Revised: 7 August 2018 / Accepted: 8 August 2018 / Published: 13 August 2018
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Abstract
Silver nanoparticles (AgNPs) are of great interest due to their antimicrobial, optical and catalytical properties. Green synthesis of AgNPs is fundamental for some applications such as biomedicine and catalysis. Natural polymers, such as chitosan, have been proposed as reducing and stabilizing agents in
[...] Read more.
Silver nanoparticles (AgNPs) are of great interest due to their antimicrobial, optical and catalytical properties. Green synthesis of AgNPs is fundamental for some applications such as biomedicine and catalysis. Natural polymers, such as chitosan, have been proposed as reducing and stabilizing agents in the green synthesis of AgNPs. Physico-chemical properties of chitosan have a great impact on its technological and biological properties. In this paper, we explore the effect of chitosan molecular weight (Mw) on the thermal AgNPs production using two sample sets of low Mw chitosans (F1 > 30 kDa, F2: 30–10 kDa and F3: 10–5 kDa) produced by enzymatic depolymerization of a parent chitosan with chitosanase and lysozyme. Both polymer sets were able to effectively reduce Ag+ to Ag0 as the presence of the silver surface plasmon resonance (SRP) demonstrated. However, the ability to stabilize the nanoparticles depended not only on the Mw of the polymer but particularly on the polymer pattern which was determined by the enzyme used to depolymerize the parent chitosan. Low Mw chitosan samples produced by lysozyme were more effective than those produced by chitosanase to stabilize the AgNPs and smaller and less polydisperse nanoparticles were visualized by transmission electron microscopy (TEM). With some polymer sets, more than 80% of the AgNPs produced were lower than 10 nm which correspond to quantum dots. The preparation method described in this paper is general and therefore, it may be extended to other noble metals, such as palladium, gold or platinum. Full article
(This article belongs to the Special Issue Chitin- and Chitosan-Based Composite Materials)
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