Engineering Advanced Hydrogels for Biomedical Applications (2nd Edition)

A special issue of Gels (ISSN 2310-2861). This special issue belongs to the section "Gel Applications".

Deadline for manuscript submissions: 31 August 2025 | Viewed by 1549

Special Issue Editors


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Guest Editor
Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
Interests: hydrogels; tissue regeneration; bioinks; 3D printing; drug screening
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
Interests: biomaterials; hydrogels; tissue regeneration; stimuli-responsive materials; bioinks; wound healing
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Hydrogels are attractive scaffolds that hold a significant amount of water in their 3D structure and are similar to our body tissues in terms of mechanical properties and biocompatibility. They can be widely used in biomedical applications, including drug delivery, tissue engineering, and regenerative medicine. However, conventional hydrogels have several limitations, such as a lack of multifunctionality. As a result, advanced hydrogels have been developed and engineered to address a variety of difficult therapeutic demands (e.g., infected wounds, diabetic wounds, or trauma wound treatment). Recently formed hydrogels can be multifunctional and exhibit high mechanical, bio-adhesive, antibacterial, and antioxidant capabilities. In particular, smart hydrogels may be created by combining multifunctional hydrogels with various bioactive compounds, such as cytokines, immunomodulatory substances, or growth factors. With the ability to modulate both innate and adaptive immune responses, promote chronic wound healing, and ultimately lead to scarless tissue regeneration, advanced multifunctional hydrogels can even provide spatiotemporal control over immune responses. Furthermore, cutting-edge methods including 3D printing, microfluidics, and microneedles can be used to enhance sophisticated multifunctional hydrogels. The numerous bio-applications of cutting-edge multifunctional hydrogels as well as their engineering techniques will be covered in this Special Issue.

We anticipate receiving active submissions on the broad topic of developing advanced hydrogels with multiple functionalities for biomedical applications. It gives us great pleasure to extend an invitation to you to submit a paper for this Special Issue, which is open to brief communications, case reports, reviews, and original research articles.

Dr. Bae Hoon Lee
Dr. Nabila Mehwish
Guest Editors

Manuscript Submission Information

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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. Gels is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • hydrogels
  • immunoregulation
  • multifunctional properties
  • polymers
  • nanocomposites
  • tissue regeneration
  • wound healing
  • bioprinting
  • drug delivery
  • cell culture

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Published Papers (1 paper)

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Research

17 pages, 4747 KiB  
Article
Physicochemical Properties, Drug Release and In Situ Depot-Forming Behaviors of Alginate Hydrogel Containing Poorly Water-Soluble Aripiprazole
by Hy D. Nguyen, Munsik Jang, Hai V. Ngo, Myung-Chul Gil, Gang Jin, Jing-Hao Cui, Qing-Ri Cao and Beom-Jin Lee
Gels 2024, 10(12), 781; https://doi.org/10.3390/gels10120781 - 29 Nov 2024
Cited by 1 | Viewed by 1208
Abstract
The objective of this study was to investigate the physicochemical properties, drug release and in situ depot-forming behavior of alginate hydrogel containing poorly water-soluble aripiprazole (ARP) for achieving free-flowing injectability, clinically accessible gelation time and sustained drug release. The balanced ratio of pyridoxal [...] Read more.
The objective of this study was to investigate the physicochemical properties, drug release and in situ depot-forming behavior of alginate hydrogel containing poorly water-soluble aripiprazole (ARP) for achieving free-flowing injectability, clinically accessible gelation time and sustained drug release. The balanced ratio of pyridoxal phosphate (PLP) and glucono-delta-lactone (GDL) was crucial to modulate gelation time of the alginate solution in the presence of calcium carbonate. Our results demonstrated that the sol state alginate hydrogel before gelation was free-flowing, stable and readily injectable using a small 23 G needle. In addition, the ratio (w/w) of PLP and GDL altered the gelation time, which was longer as the PLP content increased but shorter as the GDL content increased. The alginate hydrogel with a ratio of PLP to GDL of 15:9 had the optimal physicochemical properties in terms of a clinically acceptable gelation time (9.1 min), in situ-depot formation with muscle-mimicking stiffness (3.55 kPa) and sustained release over a two-week period. The alginate hydrogel, which is tunable by varying the ratio of PLP and GDL, could provide a controllable pharmaceutical preparation to meet the need for long-acting performance of antipsychotic drugs like ARP. Full article
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