The urchin-like gold nanoparticles/poly(ε-caprolactone)/chitosan electrospun nanofibers for antibacterial active packaging.
Int J Biol Macromol
; 274(Pt 1): 133287, 2024 Aug.
Article
in En
| MEDLINE
| ID: mdl-38909730
ABSTRACT
Inspired by the natural antimicrobial effect of the topographical features of insect wings, this study prepared urchin-like gold nanoparticles (UGNPs) and deposited them on poly(ε-caprolactone) (PCL)/chitosan (P/C) electrospun nanofiber film to strengthen antibacterial activities of this active packaging. Results showed that L-Dopa was a suitable reducing agent to prepare UGNPs, and the spine length of UGNPs increased from 21.23 to 35.83 nm as the molar ratio of L-DopaHAuCl4 increased from 1 to 3. As the nanofiber film was immersed in the nanoparticle solution for a longer time, the UGNP content in P/C nanofibers increased. As the spine length of UGNPs and depositing UGNP content increased, the inhibition rate against S. aureus and E. coli. of P/C nanofiber film increased. In addition, P/C nanofiber film deposited with UGNPs also exhibited good thermal stability, hydrophilicity, mechanical strength, and water vapor permeability, exhibiting its potential as an antibacterial active packaging.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Polyesters
/
Staphylococcus aureus
/
Chitosan
/
Escherichia coli
/
Metal Nanoparticles
/
Nanofibers
/
Gold
/
Anti-Bacterial Agents
Language:
En
Journal:
Int J Biol Macromol
Year:
2024
Document type:
Article
Affiliation country: