Bioactive multi-engineered hydrogel offers simultaneous promise against antibiotic resistance and wound damage.

Int J Biol Macromol

National Laboratory of Solid State Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China.. Electronic address:

Published: December 2020

AI Article Synopsis

  • Wound healing is vital for repairing tissue and preventing infections, but current treatments often fall short, especially against antibiotic-resistant bacteria.
  • Researchers developed ABgel, an injectable hydrogel containing acidic fibroblast growth factor (aFGF) and bacteriophage, aimed at enhancing wound regeneration and fighting bacteria.
  • ABgel's composition allows it to mimic skin, effectively combat antibiotic-resistant E. coli, and promote skin regeneration in mice, showcasing its potential as a versatile wound dressing.

Article Abstract

Wound healing is a complex process involved in repairing tissue damage and preventing infection. However, there is a lack of appropriate treatment solutions that can simultaneously promote tissue repair and protect againstbacteria, especially antibiotic-resistant bacteria. In this study, we have developed an injectable hydrogel encapsulating acidic fibroblast growth factor (aFGF) and bacteriophage, termed as ABgel, for combating antibiotic-resistant bacteria and enhancing wound regeneration. ABgel is composed of oxidized sodium alginate (OSA), gelatin and hyaluronic acid (HA), and can rapidly form hydrogel with an elastic modulus of 13 kPa, which mimics the skin tissues. In addition, ABgel can effectively load and stabilize bacteriophage and aFGF, allowing for preventing bacterial infections and improving regeneration of damaged dermal tissues. In vitro studies demonstrate that ABgel exhibits enormous antibacterial activity against antibiotic-resistant E. coli and enhanced angiogenetic activity. Importantly, ABgel can promote skin regeneration and prevent bacterial infections in mice, thereby promoting wound healing process. Therefore, ABgel represents a decent bioactive engineered hydrogel dressing with a broad application potential.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ijbiomac.2020.08.247DOI Listing

Publication Analysis

Top Keywords

wound healing
8
antibiotic-resistant bacteria
8
bacterial infections
8
abgel
6
bioactive multi-engineered
4
hydrogel
4
multi-engineered hydrogel
4
hydrogel offers
4
offers simultaneous
4
simultaneous promise
4

Similar Publications

Comparative Analysis of Gelatin/Polylactic Acid and Commercial PLA Membranes for Guided Bone Regeneration: A Randomized Clinical Trial.

Med Sci Monit

January 2025

Department of Oral Implantology, The Affiliated Stomatology Hospital, Jiangxi Medical College, Nanchang University, Jiangxi Province Key Laboratory of Oral Biomedicine, Jiangxi Province Clinical Research Center for Oral Disease, Nanchang, Jiangxi, China.

BACKGROUND This study included 32 patients with single missing teeth and alveolar bone defects and aimed to compare outcomes from guided bone regeneration with a gelatin/polylactic acid (GT/PLA) barrier membrane and a Guidor® bioresorbable matrix barrier dental membrane. MATERIAL AND METHODS A total of 32 participants were recruited in the clinical study, with single missing teeth and alveolar bone defects, requiring guided bone regeneration (32 missing teeth in total). They were randomly divided into the GT/PLA membrane group (experimental) and Guidor® membrane group (control) by the envelope method (n=16).

View Article and Find Full Text PDF

Purpose: This study aims to elucidate the role of pituitary adenylate cyclase-activating polypeptide (PACAP) in Hunner-type Interstitial Cystitis (HIC) and evaluate its potential as a therapeutic target.

Methods: Bladder tissue samples were obtained from HIC patients and normal bladder tissue from bladder cancer patients. PACAP expression was assessed through immunohistochemistry.

View Article and Find Full Text PDF

Introduction: Soft-tissue defect is commonly seen in immediate maxillary posterior implantation because of tooth extraction wound and tension from bone graft. Bone graft materials exposure has a significant detrimental influence on bone augmentation. However, previous studies lack sufficient evidence to guide wound closure after immediate posterior implantation.

View Article and Find Full Text PDF

Amniotic Fluid as a Potential Treatment for Vocal Fold Scar in a Rabbit Model.

J Voice

January 2025

Department of Otolaryngology - Head and Neck Surgery, University of Utah, Salt Lake City, UT; Department of Surgery, University Utah, Salt Lake City, UT.

Objectives/hypothesis: Vocal fold (VF) injury and chronic inflammation can progress to scarring, which is notoriously difficult to treat. Human amniotic fluid (AF) has potential for VF wound healing in a rabbit model, and we hypothesized that AF would demonstrate wound healing properties superior to hyaluronic acid (HA) over time.

Study Design: Randomized, controlled trial.

View Article and Find Full Text PDF

Serine-modified silver nanoparticle porous spray membrane: A novel approach to wound infection prevention and inflammation reduction.

Int J Pharm

January 2025

College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, PR China. Electronic address:

Traditional wound care preparations frequently face challenges such as complex care protocols, poor patient compliance, limited skin permeability, lack of aesthetics, and inconvenience, in addition to the risk of bacterial infection. We developed a spray film preparation containing nanocellulose and L-serine modified nanosilver, capable of rapidly forming a transparent film on the skin within minutes of application. The incorporation of nanocellulose imparted protective, moisturizing, and breathable properties to the film, allowing for easy removal after use.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!