Tailoring the ligand shell for the control of cellular uptake and optical properties of nanocrystals

• Johannes Ostermann,
• Christian Schmidtke,
• Christopher Wolter,
• Jan-Philip Merkl,
• Hauke Kloust and
• Horst Weller

Beilstein J. Nanotechnol. 2015, 6, 232–242, doi:10.3762/bjnano.6.22

• coupled dense shell. Figure 5 shows the whole encapsulation process, including the possible cross-linking and seeded emulsion polymerization steps. A very powerful and sensitive tool to test the density of the nanocontainers is fluorescence quenching with small organic molecules or ions to simulate

• particles, the seeded emulsion polymerization opens the possibility to functionalize the nanocontainers during the polymerization process. Molecules with an alkene function are suitable to be introduced into the polymeric shell via radical polymerization. Since this reaction takes place in the hydrophobic

• optional cross-linking and seeded emulsion polymerization steps for a higher density of the core region. Reproduced with permission from [27]. Copyright 2013 The Royal Society of Chemistry. Relative fluorescence intensity of QDs after the addition of aliquots of Cu2+. Coated with a 1300 g/mol PI-DETA and

Platinum nanoparticles from size adjusted functional colloidal particles generated by a seeded emulsion polymerization process

• Nicolas Vogel,
• Ulrich Ziener,
• Achim Manzke,
• Alfred Plettl,
• Paul Ziemann,
• Johannes Biskupek,
• Clemens K. Weiss and
• Katharina Landfester

Beilstein J. Nanotechnol. 2011, 2, 459–472, doi:10.3762/bjnano.2.50

• combined in a seeded emulsion polymerization process with functional seed particles synthesized by miniemulsion polymerization. A systematic study on the influence of different reaction parameters on the reaction pathway is conducted, including variations of the amount of monomer fed, the ratio of

• initiator to monomer and the choice of surfactant and composition of the continuous phase. Critical parameters affecting the control of the reaction are determined. If carefully controlled, the seeded emulsion polymerization with functional seed particles yields monodisperse particles with adjustable size

• ] and magnetic particles [23]. In this article, we report on studies undertaken to determine process parameters for the creation of advanced colloidal monolayer architectures. A seeded emulsion polymerization process was applied and used to combine the benefits of both emulsion and miniemulsion