title: Antibacterial behavior of polypyrrole: The influence of morphology and additives incorporation.
abstract: The antibacterial behavior of polypyrrole (PPy) depends on a diversity of structural parameters such as surface area, aggregation level and additives (metal nanoparticles) incorporation. This paper summarizes the influence of different preparation procedures of PPy on action of resulting antibacterial composite against Escherichia coli, Staphylococcus aureus and Klebsiella pneumoniae. The bactericidal action has been assigned to morphology (size of polypyrrole nanoparticles). The electrostatic interaction established between polymer nanoparticles and bacteria provokes the bacterial cell death and returns advantages in comparison with conventional composites of polypyrrole decorated with metal nanoparticles.
authors.affiliation: Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil.
authors.forename: Fernando A G
authors.initials: FA
authors.lastname: da Silva
authors.affiliation: Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil.
authors.forename: Jefferson C
authors.initials: JC
authors.lastname: Queiroz
authors.affiliation: Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil; Instituto Federal de Educação, Ciência e Tecnologia do Sertão Pernambucano, Petrolina, 56302-320, Pernambuco, Brazil.
authors.forename: Ericleiton R
authors.initials: ER
authors.lastname: Macedo
authors.affiliation: Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil.
authors.forename: Antonio W C
authors.initials: AW
authors.lastname: Fernandes
authors.affiliation: Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil.
authors.forename: Naiana B
authors.initials: NB
authors.lastname: Freire
authors.affiliation: Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil.
authors.forename: Mateus M
authors.initials: MM
authors.lastname: da Costa
authors.affiliation: Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil. Electronic address: helinando.oliveira@univasf.edu.br.
authors.forename: Helinando P
authors.initials: HP
authors.lastname: de Oliveira
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D052978:Disk Diffusion Antimicrobial Tests; D004926:Escherichia coli / Q000187:drug effects; D007711:Klebsiella pneumoniae / Q000187:drug effects; D053768:Metal Nanoparticles / Q000737:chemistry; D010316:Particle Size; D011108:Polymers / Q000737:chemistry* / Q000494:pharmacology; D011758:Pyrroles / Q000737:chemistry* / Q000494:pharmacology; D012834:Silver / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013211:Staphylococcus aureus / Q000187:drug effects; D014961:X-Ray Diffraction
chemical_list: D000900:Anti-Bacterial Agents; D011108:Polymers; D011758:Pyrroles; C067635:polypyrrole; D012834:Silver
keywords: Antibacterial activity; Nanocomposite; Polymer composites; Polypyrrole