AI Article Synopsis

  • Bacterial infections in wounds are a significant global health challenge, highlighting the need for effective treatments.
  • This research introduces new methods for creating Metal-Alginate hydrogels using sodium alginate and various metal ions, producing a material useful for wound healing.
  • Cu-Alginate, in particular, demonstrates strong antibacterial properties against multidrug-resistant bacteria while being low in toxicity and environmentally friendly, suggesting a promising advancement in wound care.

Article Abstract

Bacterial infections in wounds continue to be a major challenge in clinical settings worldwide and represent a significant threat to human health. This work proposes novel expandable and versatile methods for solidifying sodium alginate (SA) with metal ions (such as Fe, Co, Ni, Cu, and Zn) to create Metal-Alginate (M-Alg) hydrogel with adjustable morphology, composition, and microstructure. It conforms to the wound site, protects against second infection, reduces inflammation, and promotes the healing of infected wounds. Among these hydrogels, Cu-Alginate (Cu-Alg) shows excellent sterilization effect and good efficacy against both gram-positive and gram-negative bacteria, including multidrug-resistant (MDR) strains such as Methicillin-resistant Staphylococcus aureus (MRSA) and Carbapenem-resistant Klebsiella pneumoniae (CRKP) due to its dual antibacterial mechanisms: contact-killing and reactive oxygen species (ROS) burst. Importantly, it exhibits low cytotoxicity and biodegradability. This simple and cost-effective gel-based system has the potential to introduce an innovative approach to the management of wound infection and offers promising new perspectives for the advancement of wound care practice.

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http://dx.doi.org/10.1002/adhm.202303688DOI Listing

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