Biocompatible 3D Matrix with Antimicrobial Properties.

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Antimicrobial Materials

Background:

• Bone tissue engineering requires regenerative scaffolds with antimicrobial properties to prevent infection and promote healing.
• Current treatments face challenges with infection and limited regenerative capacity.

Purpose of the Study:

• To develop and characterize a novel 3D regenerative matrix incorporating antimicrobial properties.
• To assess the biocompatibility and biological activity of the developed matrix for bone regeneration applications.

Main Methods:

• Fabrication of a 3D matrix using collagen (COLL), hydroxyapatite (HAp), β-cyclodextrin (β-CD), and usnic acid (UA).
• Characterization using Scanning Electron Microscopy (SEM), Fourier Transform Infrared Microscopy (FT-IRM), Transmission Electron Microscopy (TEM), and X-ray Diffraction (XRD).
• In vitro biocompatibility testing with MG-63 osteoblast-like cells and antimicrobial activity assessment against bacterial strains.

Main Results:

• The 3D matrix was successfully developed and characterized by SEM, FT-IRM, TEM, and XRD.
• In vitro studies confirmed the matrix is biocompatible, supporting MG-63 cell growth and development.
• The matrix demonstrated significant antimicrobial activity, especially against Staphylococcus aureus, attributed to usnic acid's efficacy against Gram-positive bacteria.

Conclusions:

• The developed 3D matrix exhibits promising biocompatibility and potent antimicrobial properties.
• This novel biomaterial serves as a viable alternative for fabricating anti-infective regenerative matrices in bone tissue engineering.
• The combination of collagen, hydroxyapatite, and usnic acid offers a multifunctional approach for enhanced bone regeneration.