title: Templated CaCO3 Crystallization by Submicrometer and Nanosized Fibers.
abstract: Electrospun submicrometer-sized poly(ε-caprolactone) (PCL) meshes and nanosized multiwalled carbon nanotubes (MWCNTs) were used as a template for preparing porous and interconnected inorganic-organic hybrid materials composed of CaCO3. Herein, we describe the proportion and incorporation method of submicrometer-sized plasma-treated PCL meshes over areas >1 mm(2) with CaCO3 using three crystallization methods including the use of poly(acrylic acid) (PAA). We found that flexible and rigid acid-functionalized MWCNTs showed a clear capacity and effects to penetrate calcite particles. MWCNTs interacted differently with the individual growth planes of CaCO3, indicating that fibers can undergo changes depending on sulfonate or carboxylate groups, adopt different orientations in solution, and thereby elicit changes in CaCO3 morphology. In summary, the use of PCL and acidic MWCNT fibers as an additive for substrate templates and experimental crystallization provides a viable approach for studying various aspects of biomineralization, including the production of controlled particles, control of porosities, and defined morphologies at microscale and nanoscale levels.
authors.forename: Andrónico
authors.initials: A
authors.lastname: Neira-Carrillo
authors.affiliation: Evonik Corporation, Birmingham, Alabama 35211, United States.
authors.forename: Rafael
authors.initials: R
authors.lastname: Gentsch
authors.affiliation: Department of Chemistry, Humboldt-Universität zu Berlin , Brook-Taylor-Str. 2, 12489 Berlin, Germany.
authors.forename: Hans G
authors.initials: HG
authors.lastname: Börner
authors.affiliation: Department of Chemistry, Universidad Nacional de Río Cuarto , Córdoba, Argentina.
authors.forename: Diego Fernando
authors.initials: DF
authors.lastname: Acevedo
authors.affiliation: Department of Chemistry, Universidad Nacional de Río Cuarto , Córdoba, Argentina.
authors.forename: Cesar Alfredo
authors.initials: CA
authors.lastname: Barbero
authors.affiliation: Physical Chemistry, Department of Chemistry, University of Konstanz , 78457 Konstanz, Germany.
authors.forename: Helmut
authors.initials: H
authors.lastname: Cölfen