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Recent Advances in Natural Biopolymers

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Biobased and Biodegradable Polymers".

Deadline for manuscript submissions: 30 April 2026 | Viewed by 1153

Special Issue Editor


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Guest Editor
Department of Chemical and Biological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada
Interests: polymer gels; carbohydrate polymers; cellulose nanocrystals; packaging; nanoparticles; sustainable materials
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Special Issue Information

Dear Colleagues,

Natural biopolymers, such as proteins, polysaccharides, and cellulose, are gaining widespread attention due to their remarkable versatility, biodegradability, and potential to replace synthetic polymers in various applications. With increasing global emphasis on sustainability and environmental consciousness, these biomolecules offer compelling pathways for the development of functional, high-performance, and eco-friendly materials.

This Special Issue aims to highlight recent advances in the design, processing, modification, and application of natural biopolymers, with a focus on proteins (e.g., silk, collagen, zein, and casein), polysaccharides (e.g., chitosan, starch, alginate, and hyaluronic acid), and cellulose (including nanocellulose in its crystalline or fibrillated forms). These materials have found applications in biomedical devices, food packaging, environmental remediation, energy storage, 3D printing, and construction, among others.

In particular, the Special Issue welcomes submissions that explore the following:

  • Chemical and physical modifications of natural biopolymers for improving processability, stability, or functional performance.
  • Nanostructuring and self-assembly of proteins and polysaccharides for high-value material systems.
  • Advanced characterization techniques applied to study structure–property relationships.
  • Emerging applications, such as photonic biomaterials, controlled drug delivery, bioelectronics, and bio-based composites.
  • Hybrid and composite systems combining natural biopolymers with synthetic polymers, inorganic nanoparticles, or other bio-based materials.
  • Life cycle analysis, biodegradation, and the environmental impact of these systems.
  • Scalability and commercial prospects of natural, biopolymer-based technologies.

By bringing together contributions from experts in materials science, chemistry, biotechnology, and engineering, this Special Issue will serve as a platform to foster interdisciplinary dialogue and showcase cutting-edge research on biopolymer innovation. We encourage submissions of original research articles, comprehensive reviews, and perspectives that advance the understanding and practical deployment of natural biopolymers in modern materials science.

Dr. Amin Babaei-Ghazvini
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 250 words) can be sent to the Editorial Office for assessment.

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. Polymers 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 2700 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

  • natural biopolymers
  • cellulose nanocrystals (CNCs)
  • polysaccharides
  • proteins and protein-based materials
  • chitosan and lignin
  • bio-based composites
  • biodegradable materials
  • sustainable polymer science
  • functional biopolymers
  • green chemistry

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Published Papers (1 paper)

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Research

18 pages, 2995 KB  
Article
Controlling the Bioprinting Efficiency of Alginate–Gelatin by Varying Hydroxyapatite Concentrations to Fabricate Bioinks for Bone Tissue Engineering
by Nikos Koutsomarkos, Varvara Platania, Dimitris Vlassopoulos and Maria Chatzinikolaidou
Polymers 2026, 18(3), 314; https://doi.org/10.3390/polym18030314 - 23 Jan 2026
Viewed by 715
Abstract
A major objective of this study is to investigate the incorporation of hydroxyapatite nanoparticles (nHA) in a biopolymeric matrix of alginate (Alg) and gelatin (Gel), with particular emphasis understanding how controlled variation in nHA concentration affects rheological, mechanical, printing, and biological performance. Although [...] Read more.
A major objective of this study is to investigate the incorporation of hydroxyapatite nanoparticles (nHA) in a biopolymeric matrix of alginate (Alg) and gelatin (Gel), with particular emphasis understanding how controlled variation in nHA concentration affects rheological, mechanical, printing, and biological performance. Although Alg–Gel blends and nHA-containing hydrogels have been previously explored, a systematic and quantitative correlation between nHA loading, viscoelastic recovery, yield behavior, filament fidelity, and cell viability under optimized bioprinting conditions has not been established. Here, we address this by preparing and evaluating six composite inks (0, 1, 2, 3, 4, and 5% w/v nHA). The parameters of interest included the printing accuracy, the rheological profile, including over 70% viscosity recovery after 10 s in almost all formulations, the elastic modulus, which was over 10 kPa, and the swelling degree. In addition, pre-osteoblastic cells were embedded in these formulations, subsequently bioprinted, and demonstrated viability over 70% after 7 days. The results advance our understanding on the effect of the chemical composition behind the modification of the properties of the composite materials and their applications for biofabrication. This work contributes quantitative insight into how compositional tuning influences the performance of alginate–gelatin–nHA bioinks for extrusion-based bioprinting applications. Full article
(This article belongs to the Special Issue Recent Advances in Natural Biopolymers)
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