6533b858fe1ef96bd12b56ca
RESEARCH PRODUCT
Growth of fibrous aggregates of silica nanoparticles: Fibre growth by mimicking the biogenic silica patterning processes
Muhammed Nawaz TahirWerner E.g. MüllerWolfgang TremelRüdiger BergerFilipe NatalioPatrick TheatoMatthias BarzHeinz-christoph Schrödersubject
chemistry.chemical_classificationLigandNitrilotriacetic acidGeneral ChemistryPolymerCondensed Matter Physicschemistry.chemical_compoundchemistryChemical engineeringNanofiberPolymer chemistryMicroscopySide chainSurface chargeHigh-resolution transmission electron microscopydescription
We describe the self-assembly of discrete SiO2 nanofibers via grafting of silicatein side chains to a polymer backbone. The covalent binding of silicatein to the backbone of the polymer is based on the affinity of the nitrilotriacetic acid (NTA) side chain, which serves as a ligand for the immobilization of His-tagged silicatein. The surface charge and the bulkiness of the protein moieties prevent the entropically favoured coil formation of the polymer and force it to adopt an open chain structure after hydrolysis of the silica precursors. The probes were characterized by scanning force microscopy (SFM) and optical light microscopy. Surface complexation of the resulting silica nanoparticles by the polymer-bound silicatein were analysed using high resolution tranmission electron microscopy (HRTEM).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-01-01 | Soft Matter |