title: Conductive properties of TiO2/bacterial cellulose hybrid fibres.
abstract: Conductive properties of TiO(2) nanoparticles and TiO(2)/BC hybrid inorganic/organic fibres were investigated by electrostatic force microscopy (EFM). TiO(2)/BC hybrid composites were prepared based on bacterial cellulose produced by Gluconobacterxylinum, being the bacterial cellulose as a hydrophilic substrate for TiO(2) nanoparticles synthesized via sol-gel. Taken into account hydrophilic nature of the cellulose, TiO(2) nanoparticles were located on the surface of the fibres due to hydrogen bonding interactions. EFM was used to determine qualitatively conductive properties of TiO(2) nanoparticles and their TiO(2)/BC hybrid inorganic/organic fibres. Results indicate that TiO(2)/BC hybrid fibres respond to applied bias regardless of the sign of the applied voltage.
authors.affiliation: 'Materials + Technologies' Group, Dpto. Ingeniería Química y M. Ambiente, Escuela Politécnica, Universidad País Vasco/Euskal Herriko Unibertsitatea, Pza. Europa 1, 20018 Donostia-San Sebastián, Spain.
authors.forename: Junkal
authors.initials: J
authors.lastname: Gutierrez
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Tercjak
authors.forename: Itxaso
authors.initials: I
authors.lastname: Algar
authors.forename: Aloña
authors.initials: A
authors.lastname: Retegi
authors.forename: Iñaki
authors.initials: I
authors.lastname: Mondragon
mesh_terms: D002482:Cellulose / Q000096:biosynthesis / Q000737:chemistry*; D004553:Electric Conductivity; D020576:Gluconobacter / Q000737:chemistry* / Q000378:metabolism; D057139:Nanofibers / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry; D010316:Particle Size; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
chemical_list: C009495:titanium dioxide; D002482:Cellulose; D014025:Titanium