Antibacterial and Hemolytic Activity of Antimicrobial Hydrogels Utilizing Immobilized Antimicrobial Peptides
Artikel i vetenskaplig tidskrift, 2024

Antimicrobial peptides (AMPs) are viewed as potential compounds for the treatment of bacterial infections. Nevertheless, the successful translation of AMPs into clinical applications has been impeded primarily due to their low stability in biological environments and potential toxicological concerns at higher concentrations. The covalent attachment of AMPs to a material's surface has been sought to improve their stability. However, it is still an open question what is required to best perform such an attachment and the role of the support. In this work, six different AMPs were covalently attached to a long-ranged ordered amphiphilic hydrogel, with their antibacterial efficacy evaluated and compared to their performance when free in solution. Among the tested AMPs were four different versions of synthetic end-tagged AMPs where the sequence was altered to change the cationic residue as well as to vary the degree of hydrophobicity. Two previously well-studied AMPs, Piscidin 1 and Omiganan, were also included as comparisons. The antibacterial efficacy against Staphylococcus aureus remained largely consistent between free AMPs and those attached to surfaces. However, the activity pattern against Pseudomonas aeruginosa on hydrogel surfaces displayed a marked contrast to that observed in the solution. Additionally, all the AMPs showed varying degrees of hemolytic activity when in solution. This activity was entirely diminished, and all the AMPs were non-hemolytic when attached to the hydrogels.

antibacterial functionalization

surface attachment

biomaterials

antimicrobial peptides

hydrogels

Författare

Edvin Blomstrand

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Elin Posch

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Annija Stepulane

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Anand K. Rajasekharan

Amferia AB

Martin Andersson

Chalmers, Kemi och kemiteknik, Tillämpad kemi

International Journal of Molecular Sciences

16616596 (ISSN) 14220067 (eISSN)

Vol. 25 8 4200

Ämneskategorier

Farmaceutisk vetenskap

Infektionsmedicin

Mikrobiologi

Medicinska material och protesteknik

Styrkeområden

Materialvetenskap

DOI

10.3390/ijms25084200

PubMed

38673786

Mer information

Senast uppdaterat

2024-11-14