6533b829fe1ef96bd1289a7c
RESEARCH PRODUCT
Enzyme-Mediated Deposition of a TiO2Coating onto Biofunctionalized WS2 Chalcogenide Nanotubes
Muhammed Nawaz TahirWerner E.g. MüllerHeinz-christoph SchröderNadine MetzWolfgang TremelAswani YellaRüdiger BergerMuhammad Raza ShahPatrick TheatoFilipe NatalioEnrico MugnaioliHelen Annal Theresesubject
chemistry.chemical_classificationMaterials scienceChalcogenideScanning electron microscopeNitrilotriacetic acidNanotechnologyPolymerengineering.materialCondensed Matter PhysicsLigand (biochemistry)Electronic Optical and Magnetic MaterialsBiomaterialschemistry.chemical_compoundChemical engineeringchemistryCoatingTransmission electron microscopyElectrochemistryengineeringSide chaindescription
A chemically specific and facile method for the biofunctionalization of WS2 nanotubes (NT-WS2) is reported. The covalent modification strategy is based on the affinity of the nitrilotriacetic acid (NTA) side chain, which serves as a ligand for the surface binding to NT-WS2 and simultaneously as an anchor group for the binding of His-tagged proteins to the polymer backbone. The polymer functionalized WS2 nanotubes can be solubilized either in water or organic solvents; they are stable for at least one week. The probes were characterized by FT-IR and UV-vis spectroscopy. The immobilization of silicatein, a hydrolytic protein encountered in marine sponges, was visualized by scanning force microscopy (SFM) and confocal laser scanning microscopy (CLSM). The formation of the biotitania coating mediated by the immobilized silicatein onto the surface was characterized by scanning electron microscopy (SEM), and transmission electron microscopy (TEM).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-01-23 | Advanced Functional Materials |