Kloust H. – TechConnect Briefs

Fluorescent-Plasmonic Quantum Dot-Gold based Nanohybrids: Basic Research for Next Generation Materials and Tracking of Biological Events

Merkl J.-P., Schmidtke C., Aldeek F., Safi M., Strelow C., Feld A., Kloust H., Heidari H., Bals S., Lange H., Mattoussi H., Weller H., University of Hamburg, DE

A novel hybrid nanoparticle is presented based on encapsulated fluorescent CdSe/ZnSe/ZnS core/shell/shell quantum dots (QDs) with zwitterionic capped gold nanoparticles (AuNPs). This hybrid is fully characterizes by variouse techniques including optical spectroscopy, (cryo) transmission electron [...]

Synthesis of Ultra Small Biocompatible Magnetic Nanocomposites by Seeded Emulsion Polymerization

Kloust H., Pöselt E., Kappen S., Schmidtke C., Kornowski A., Pauer W., Moritz H.-U., Weller H., University of Hamburg, DE

We present the production of PEGylated particles in the lower nanometer range by a new seeded emulsion polymerization technique under micro-emulsion conditions, avoiding any treatment with high shear forces or ultrasonication. Hereby, the hydrophobic shells [...]

Encapsulation of nanoparticles with multifunctional, cross-linkable diblock copolymers for biomedicine

Schmidtke C., Ostermann J., Tran H., Pöselt E., Kloust H., Niehaus J., Becker S., Kreuziger A., Werner K., Pietsch A., Weller H., University of Hamburg, DE

We would like to present a micellular encapsulation method for nanoparticles (quantum dots, iron oxides, gold) which is based on a ligand exchange procedure of native ligands with a prepolymer poly(isoprene)-diethylentriamine (PI-N3) and subsequent ligand [...]