Chitosan-Based Polymers as Promising Materials for a Variety of Biomedical Applications

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

Deadline for manuscript submissions: closed (25 March 2024) | Viewed by 3106

Special Issue Editors


E-Mail Website
Guest Editor
College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
Interests: intestinal inflammation; microbiome; nature products; signal pathway

E-Mail Website
Guest Editor
Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln, Canterbury 7647, New Zealand
Interests: food toxicology; gut microbiota; food foreign substances; xenobiotics; food mycotoxin; heavy metals; probiotics; pathogenic microorganisms; intestinal inflammation
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Medical Pharmacology, Medical Faculty, Ataturk University, 25240 Erzurum, Turkey
Interests: natural products chemistry; bioactive compounds from agri-food wastes and byproducts; xenobiotic residue analysis in food commodities and animal products; biomedical analysis; starch-based biomaterials and their applications in food packages

Special Issue Information

Dear Colleagues,

Chitosan has numerous health benefits, including the alleviation of intestinal inflammation, the enhancement of cell-mediated immune responses, the inhibition of edema, the alleviation of allergic inflammation and diet-induced obesity, as well as antioxidative and antitumor effects. The oral administration of chitosan has been shown to stimulate the immune system and improve adaptive immunity by inducing the production of immunoglobulins G (IgG) and A (IgA) in both serum and feces. On the other hand, chitosan has several properties that make it a promising adjuvant for oral vaccine delivery. For instance, chitosan is known to have protective effects in the gastric environment, which is important when ensuring a vaccine is not degraded in the acidic environment of the stomach. Additionally, chitosan has been shown to stimulate both systemic and mucosal immune responses, which is important for the generation of an effective immune response to a vaccine. It is also relatively nontoxic and has been shown to have low cytotoxicity, which is important for ensuring safety in vaccine delivery. While chitosan has been widely used in various fields, there are still many basic questions that need to be explored in order to fully understand its properties and potential applications. One major challenge in understanding the pharmacokinetics (PK) of chitosan is its molecular size and the way it is administered. Chitosan is a high-molecular-weight polysaccharide, which can make it difficult for the body to absorb and distribute. Additionally, the way chitosan is administered (e.g., orally, topically, or intravenously) can have a significant impact on how it is absorbed and metabolized. To better understand the PK of chitosan, intestinal absorption, tissue distribution, metabolism, and target molecules need to be addressed. Furthermore, its applications are limited by its poor solubility in water and some of its physical properties. To overcome this challenge, modification techniques have to be developed to improve its solubility and activity. This Special Issue will include—but will not be limited to—the potential effects and mechanisms of chitosan and modified chitosan on inflammation, tumors, intestinal flora, fat development, obesity, and diabetes in addition to targeted drug therapy. 

Prof. Dr. Xianghong Ju
Prof. Dr. Ravi Gooneratne
Prof. Dr. A. M. Abd El-Aty
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. 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

  • chitosan
  • modification
  • inflammation
  • microbiome
  • tumor therapy
  • obesity
  • diabetes
  • drug therapy

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

15 pages, 4404 KiB  
Article
Protective Effects of Carbonated Chitosan Montmorillonite on Vomitoxin-Induced Intestinal Inflammation
by Ruifan Tang, Xianghong Ju, Xueting Niu, Xiaoxi Liu, Youquan Li, Zhichao Yu, Xingbin Ma, Yuan Gao, Yin Li, Huili Xie, Qiu Zhou and Yanhong Yong
Polymers 2024, 16(5), 715; https://doi.org/10.3390/polym16050715 - 5 Mar 2024
Viewed by 750
Abstract
Exposure to vomitoxin (DON) can negatively impact the intestinal health of livestock and poultry, leading to compromised nutrient absorption and utilization, resulting in slowed growth and reduced production efficiency. In this study, we synthesized carbonated chitosan montmorillonite intercalation complexes (CCM) through solution precipitation. [...] Read more.
Exposure to vomitoxin (DON) can negatively impact the intestinal health of livestock and poultry, leading to compromised nutrient absorption and utilization, resulting in slowed growth and reduced production efficiency. In this study, we synthesized carbonated chitosan montmorillonite intercalation complexes (CCM) through solution precipitation. The successful formation of intercalation complexes was confirmed by examining functional groups and surface features using infrared spectroscopy and scanning electron microscopy. To assess the impact of CCM on DON-infected mice, we established an experimental mouse model of jejunal inflammation induced by DON infection. We analyzed the effects of CCM on blood biochemical and conventional indices, jejunal inflammatory factors, pathological changes, and the expression of proteins in the MAPK pathways in DON-infected mice. Our results indicate that CCM effectively mitigates the adverse effects of DON on growth performance, jejunal injury, and the inflammatory response in mice. CCM supplementation alleviated the negative effects of DON infection on growth performance and reduced intestinal inflammation in mice. Moreover, CCM supplementation successfully inhibited the activation of the mitogen-activated protein kinase (MAPK) signaling pathway induced by DON. These findings suggest that the mitigating effect of CCM on DON-induced inflammatory injury in the murine jejunum is closely linked to the regulation of the MAPK signaling pathway. Full article
Show Figures

Figure 1

27 pages, 6560 KiB  
Article
Morphological Reconstruction of a Critical-Sized Bone Defect in the Maxillofacial Region Using Modified Chitosan in Rats with Sub-Compensated Type I Diabetes Mellitus
by Nadezhda N. Patlataya, Igor N. Bolshakov, Vladimir A. Khorzhevskii, Anatoli A. Levenets, Nadezhda N. Medvedeva, Mariya A. Cherkashina, Matvey M. Nikolaenko, Ekaterina I. Ryaboshapko and Anna E. Dmitrienko
Polymers 2023, 15(21), 4337; https://doi.org/10.3390/polym15214337 - 6 Nov 2023
Viewed by 952
Abstract
It is known that complexes based on natural polysaccharides are able to eliminate bone defects. Prolonged hyperglycemia leads to low bone regeneration and a chronic inflammatory response. The purpose of this study was to increase the efficiency of early bone formation in a [...] Read more.
It is known that complexes based on natural polysaccharides are able to eliminate bone defects. Prolonged hyperglycemia leads to low bone regeneration and a chronic inflammatory response. The purpose of this study was to increase the efficiency of early bone formation in a cavity of critical size in diabetes mellitus in the experiment. The polyelectrolyte complex contains high-molecular ascorbate of chitosan, chondroitin sulfate, sodium hyaluronate, heparin, adgelon serum growth factor, sodium alginate and amorphous nanohydroxyapatite (CH–SA–HA). Studies were conducted on five groups of white female Wistar rats: group 1—regeneration of a bone defect in healthy animals under a blood clot; group 2—regeneration of a bone defect under a blood clot in animals with diabetes mellitus; group 3—bone regeneration in animals with diabetes mellitus after filling the bone cavity with a collagen sponge; group 4—filling of a bone defect with a CH–SA–HA construct in healthy animals; group 5—filling of a bone defect with a CH–SA–HA construct in animals with diabetes mellitus. Implantation of the CH–SA–HA construct into bone cavities in type I diabetic rats can accelerate the rate of bone tissue repair. The inclusion of modifying polysaccharides and apatite agents in the construction may be a prospect for further improvement of the properties of implants. Full article
Show Figures

Figure 1

11 pages, 3926 KiB  
Article
Evaluation of the Anti-Inflammatory Pain Effect of Ginsenoside-Conjugated O-Carboxymethyl Chitosan Particles
by Huan-Jun Lu, Jian-Ke Cen, Yu Ren and Mei-Xian Li
Polymers 2023, 15(19), 4011; https://doi.org/10.3390/polym15194011 - 6 Oct 2023
Viewed by 1019
Abstract
Nanoparticle delivery of functional molecules or vaccines is an effective method for the treatment of many diseases. This study aims to design ginsenoside Rh2-conjugated O-carboxymethyl chitosan (O-CMC/Rh2) as a drug delivery system and explore its anti-nociceptive effects. O-CMC/Rh2 was synthesized with an esterification [...] Read more.
Nanoparticle delivery of functional molecules or vaccines is an effective method for the treatment of many diseases. This study aims to design ginsenoside Rh2-conjugated O-carboxymethyl chitosan (O-CMC/Rh2) as a drug delivery system and explore its anti-nociceptive effects. O-CMC/Rh2 was synthesized with an esterification reaction, and its chemical composition and morphology were evaluated using proton nuclear magnetic resonance (1H NMR), the attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy, and scanning electron microscopy (SEM). In addition, the in vitro cumulative release of Rh2 from the O-CMC/Rh2 was also evaluated under different pH conditions. The results showed that the ginsenoside Rh2 was successfully conjugated to the O-CMC matrix and exhibited a highly porous structure after conjugation, facilitating the release of Rh2 from O-CMC. Complete Freund’s adjuvant (CFA) and burn injury-induced pain models were used to evaluate the anti-nociceptive effects of O-CMC/Rh2 on inflammatory pain. O-CMC/Rh2 reduced CFA-induced pain hypersensitivity in a dose-dependent manner and had a longer analgesic effect than Rh2. In addition, O-CMC/Rh2 also relieved the chronic pain induced by bury injury. These results indicated that O-CMC/Rh2 could be useful in reducing inflammatory pain, thus possessing a potential medicinal application in pain therapy. Full article
Show Figures

Figure 1

Back to TopTop