Novel Honeycomb Nanoclay Frameworks With Hemostatic and Antibacterial Properties - Université Clermont Auvergne
Article Dans Une Revue Journal of Biomedical Materials Research Part B: Applied Biomaterials Année : 2024

Novel Honeycomb Nanoclay Frameworks With Hemostatic and Antibacterial Properties

Mélyssa Cambronel
  • Fonction : Auteur
Kan Wongkamhaeng
  • Fonction : Auteur
Christelle Blavignac
  • Fonction : Auteur
Christiane Forestier
  • Fonction : Auteur
Isabelle Denry

Résumé

ABSTRACT Our laboratory recently developed a new class of high surface area, honeycomb Nanoclay Microsphere Framework absorbents (NMFs) that prompt rapid hemostasis. In the present work, we propose a novel approach to develop antibacterial Topical Hemostatic Agents (THAs) by anchoring silver nanoparticles (AgNPs) onto NMFs. This combination was obtained by a chemical co‐reduction approach, followed by freeze‐processing, and was shown to ensure stability and on‐site delivery of AgNPs, without altering the hemostatic properties of NMFs. Silver‐loaded NMFs showed no change in their unique architecture and led to a 55% increase in clot strength, compared to standard control plasma or commercially available THA, and a significant decrease in mean fibrin fiber diameter. Silver nanoparticles were successfully released when solubilized and prevented the growth of both Pseudomonas aeruginosa and Staphylococcus aureus at concentrations of 22 and 30 ppm of silver released, respectively. Overall, cell mortality was between 9.1 ± 5.1% and 6.3 ± 3.2%, depending on AgNP concentration, confirming a low cytotoxicity. Silver‐loaded nanoclay microsphere frameworks appear to constitute promising candidates as topical hemostatic agents for secondary management of hemostasis when infection control is needed.

Domaines

Chimie

Dates et versions

hal-04826752 , version 1 (09-12-2024)

Identifiants

Citer

Mélyssa Cambronel, Kan Wongkamhaeng, Christelle Blavignac, Christiane Forestier, Jean‐Marie Nedelec, et al.. Novel Honeycomb Nanoclay Frameworks With Hemostatic and Antibacterial Properties. Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2024, 112 (9), ⟨10.1002/jbm.b.35477⟩. ⟨hal-04826752⟩
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