Antimicrobial polylysine decorated nano-structures prepared through polymerization induced self-assembly (PISA)

L. Luppi, T. Babut, E. Petit, M. Rolland, D. Quemener, L. Soussan, M.A. Moradi, M. Semsarilar (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)

Abstract

A large variety of nanoparticles have already been prepared via the PISA methodology from methacrylic block copolymers. Here we report the very first example of polypeptide decorated nanoparticles prepared using RAFT aqueous dispersion polymerization. This work explores the original combination of PISA with functional polypeptides. A short polypeptide consisting of 3 lysines, modified with a RAFT chain transfer agent moiety, was used to conduct RAFT dispersion polymerization of 2-hydroxypropyl methacrylate (HPMA) in water at 60 °C. The positively charged water-soluble polylysine acted as the steric stabilizer for the colloidal particles generated by self-assembly of the growing amphiphilic block copolymer, resulting in the in situ formation of different polypeptide-polymer nano-objects depending on the degree of polymerization of the core-forming polymer block (PHPMA). These colloidally stable nanoparticles exhibit antibacterial properties against both Gram negative (Escherichia coli) and Gram positive (Staphylococcus epidermidis) bacteria due to the presence of the positively charged polylysine chains on their surface. Thin film membranes were prepared by spin-coating of a colloidal solution of polypeptide-decorated spherical nanoparticles. This porous thin film was then used for filtration of water containing S. epidermidis bacteria. Both the polypeptide-decorated nanoparticle solution and thin film membrane possessed significant antibacterial activity.

LanguageEnglish
Pages336-344
Number of pages9
JournalPolymer Chemistry
Volume10
Issue number3
DOIs
StatePublished - 21 Jan 2019

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Polylysine
Polypeptides
Polymerization
Self assembly
Nanoparticles
Peptides
Block copolymers
Staphylococcus epidermidis
Thin films
Water
Bacteria
Membranes
Spin coating
Escherichia coli
Lysine
Polymers

Cite this

Luppi, L., Babut, T., Petit, E., Rolland, M., Quemener, D., Soussan, L., ... Semsarilar, M. (2019). Antimicrobial polylysine decorated nano-structures prepared through polymerization induced self-assembly (PISA). Polymer Chemistry, 10(3), 336-344. DOI: 10.1039/c8py01351a
Luppi, L. ; Babut, T. ; Petit, E. ; Rolland, M. ; Quemener, D. ; Soussan, L. ; Moradi, M.A. ; Semsarilar, M./ Antimicrobial polylysine decorated nano-structures prepared through polymerization induced self-assembly (PISA). In: Polymer Chemistry. 2019 ; Vol. 10, No. 3. pp. 336-344
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Luppi, L, Babut, T, Petit, E, Rolland, M, Quemener, D, Soussan, L, Moradi, MA & Semsarilar, M 2019, 'Antimicrobial polylysine decorated nano-structures prepared through polymerization induced self-assembly (PISA)' Polymer Chemistry, vol. 10, no. 3, pp. 336-344. DOI: 10.1039/c8py01351a

Antimicrobial polylysine decorated nano-structures prepared through polymerization induced self-assembly (PISA). / Luppi, L.; Babut, T.; Petit, E.; Rolland, M.; Quemener, D.; Soussan, L.; Moradi, M.A.; Semsarilar, M. (Corresponding author).

In: Polymer Chemistry, Vol. 10, No. 3, 21.01.2019, p. 336-344.

Research output: Contribution to journalArticleAcademicpeer-review

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Luppi L, Babut T, Petit E, Rolland M, Quemener D, Soussan L et al. Antimicrobial polylysine decorated nano-structures prepared through polymerization induced self-assembly (PISA). Polymer Chemistry. 2019 Jan 21;10(3):336-344. Available from, DOI: 10.1039/c8py01351a