Multifunctional Natural Polymer-Based Therapeutic Systems: Drug Delivery Meets Tissue Engineering

A special issue of Pharmaceutics (ISSN 1999-4923). This special issue belongs to the section "Drug Delivery and Controlled Release".

Deadline for manuscript submissions: 10 November 2026 | Viewed by 1330

Special Issue Editors


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Guest Editor
Innovation Center, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
Interests: polymeric biomaterials; biodegradable biomaterials; pH- and temperature-sensitive hydrogels; polymeric systems for controlled drug release; antimicrobial polymeric biomaterials; polymeric wound dressings; polymeric scaffolds for tissue regeneration; biological properties of polymeric biomaterials
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Guest Editor
Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: biomaterials; nanobiotechnology; tissue engineering; drug delivery; nanomedicine; translational medicine; gene delivery; interdisciplinary methodologies
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, the convergence of drug delivery and tissue engineering has driven the development of a new generation of multifunctional biomaterials that are capable of addressing complex biomedical challenges through a unified therapeutic platform. Among these, natural polymer-based therapeutic systems have attracted significant attention due to their biocompatibility, hydrophilicity, biodegradability, and structural similarity to components of the native extracellular matrix (ECM). Polymers such as chitosan, gelatin, hyaluronic acid, alginate, collagen, and cellulose derivates offer versatile platforms for designing intelligent, stimuli-sensitive systems that release bioactive agents in a controlled/targeted manner, while simultaneously promoting cell adhesion, proliferation, migration, and tissue regeneration.

This Special Issue aims to highlight recent advances in the development, characterization, and pharmaceutical and biomedical application of multifunctional therapeutic systems based on natural polymers that unify the principles of drug delivery and tissue engineering. We kindly invite scientists that investigating innovative biopolymeric formulations, functional modifications, advanced biofabrication techniques (e.g., 3D printing and electrospinning), and the in vitro/in vivo performance of these hybrid therapeutic systems to contribute original research articles and review articles. Potential topics of interest include, but are not limited to, the following:

  • Design and synthesis of multifunctional natural polymer-based materials;
  • Dual therapeutic systems for simultaneous drug delivery and tissue regeneration potential;
  • Injectable, thermo-sensitive, or self-healing polymeric biomaterials;
  • Bioactive polymeric scaffolds loaded with growth factors, nanoparticles, active agents, or plant-derived compounds;
  • Smart, stimuli-responsive polymeric systems (e.g., pH, temperature, ROS);
  • Advances in biofabrication—3D bioprinting, electrospinning, and microscale structuring;
  • In vitro and in vivo evaluation of natural polymer-based therapeutic systems;
  • Application in skin, bone, cartilage, cardiovascular, and wound healing therapies;
  • Synergistic therapeutic approaches combining antimicrobial, anti-inflammatory, and regenerative effects.

Particular emphasis will be placed on therapeutic systems that demonstrate dual/multiple or synergistic functionality, such as the controlled release of bioactive agents combined with biomimetic properties, ECM–mimetic structure-mediated regeneration, or immunomodulation.

Dr. Marija M. Babić Radić
Prof. Dr. Wei-En Yuan
Guest Editors

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Keywords

  • natural polymers
  • multifunctional biomaterials
  • drug delivery systems
  • tissue engineering
  • hydrogels
  • polymeric scaffolds
  • three-dimensional bioprinting
  • controlled release
  • biomimetic polymeric biomaterials
  • regenerative medicine

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Published Papers (1 paper)

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Research

19 pages, 3262 KB  
Article
Gelatin/Ascorbic Acid Scaffolds for Controlled Release of Allantoin: A Fully Natural Approach for Skin Tissue Regeneration Through Pro-Regenerative, Antimicrobial, and Keratinocyte-Supportive Properties
by Marija M. Babić Radić, Marija Vukomanović, Martina Žabčić, Lea Gazvoda, Dubravka Živanović and Simonida Tomić
Pharmaceutics 2026, 18(3), 391; https://doi.org/10.3390/pharmaceutics18030391 - 22 Mar 2026
Viewed by 874
Abstract
Background/Objectives: Nature-inspired therapeutic strategies that promote biological regenerative mechanisms and replicate the native structural microenvironment conductive to formation of healthy tissue are increasingly recognized as a promising platform for skin tissue regeneration and wound healing. This study proposes an innovative design of [...] Read more.
Background/Objectives: Nature-inspired therapeutic strategies that promote biological regenerative mechanisms and replicate the native structural microenvironment conductive to formation of healthy tissue are increasingly recognized as a promising platform for skin tissue regeneration and wound healing. This study proposes an innovative design of novel multifunctional scaffolds composed entirely of natural components—gelatin, L-ascorbic (ASA) acid and allantoin—as a bioinspired approach for skin tissue regeneration through pro-regenerative, antimicrobial, and keratinocyte-supportive properties. Methods: The biocompatible, skin-adhesive scaffolds were prepared via a simple and environmentally friendly heat-induced crosslinking of gelatin with varying ASA contents, and by enriching the system with allantoin. The influence of ASA content on scaffold properties was investigated through characterization of their morphology, porosity, swelling behavior, skin tissue adhesion, and allantoin release potential. Biocompatibility was evaluated in vitro using human keratinocyte (HaCaT) cells, while antibacterial activity was assessed against Escherichia coli and Staphylococcus epidermidis. Results: The scaffolds revealed a highly porous, interconnected structure with tunable porosity (87.37–92.39%) and soft-tissue-matched mechanical properties (0.81–1.47 MPa). Incorporation of allantoin into the scaffolds enhanced their mechanical performance and swelling capacity. All scaffolds demonstrated antibacterial activity against both tested bacteria, supported keratinocyte viability and provided sustained release of allantoin for up to 76 h, confirming their multifunctional pro-regenerative potential. Conclusions: The novel gelatin/ascorbic acid scaffolds enriched with allantoin combine a porous replicated structure of native extracellular matrix, fluid absorption capacity, soft-tissue-like mechanical properties, stable skin tissue adhesion, cytocompatibility and antibacterial functionality with the pro-regenerative properties of allantoin, thereby representing a multifunctional and biologically inspired platform for advanced skin tissue regeneration and wound-healing applications. Full article
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