The Optimal Aspect Ratio of Gold Nanorods for Plasmonic Bio-sensing, (Plasmonics)
Light-Controlled One-Sided Growth of Large Plasmonic Gold Domains on Quantum Rods Observed on the Single Particle Level, (Nano Lett.)
Planar Metamaterial Analogue of Electromagnetically Induced Transparency for Plasmonic Sensing, (Nano Lett.)
Rotational Dynamics of Laterally Frozen Nanoparticles Specifically Attached to Biomembranes (J. Phys. Chem. C)
Physikalische Chemie
FB Chemie
FB Physik
FB Biologie
MPI für Polymerforschung
SFB 625
MWFZ
EMZM
IMM
Nano-optic
AC Praktikum
Growth Kinetic of a Rod-Shaped Metal Nanocrystal (J. Phys. Chem. C)
Tuning Plasmonic Properties by Alloying Copper into Gold Nanorods (Nanorattles as improved sensors and catalysts (Optical trapping of gold rods (Nano Lett.)
With Niels Bohr InstituteCopenhagen
Nanoparticle Symmetry (Nano Lett.)
Nano Spotlight
Membrane sensor (Nano Lett.)
Plasmonic focusing reduces linewidth (Nano Lett.)
Metal tiped hyperbrached CdTe particles Adv. Mat.
Nature RESEARCH HIGHLIGHT
Separation by shape Nano Lett. NATURE RESEARCH HIGHLIGHT
FOCUS Online
Nanorod melting J. Phys. Chem. C
FastSPS (Nano Lett.)
Bio-functionalization and self-assembly Nano Lett.
Continuos flow synthesis PCCP 8, 3824 (2006) among most downloaded paper 2006
Synthese hochverzweigter CdTe Partikel Nanoletters 5, 2164 (2005)
Plasmonen als molekulares Lineal Nature Bio-technology 23, 741 (2005)
Gold Nano-Stäbchen als neuer Orientierungssensor Nano Letters 5, 301 (2005)
The Nanobiotechnology Group at the Institute of Physical Chemistry at the University of Mainz is concerned with the physical chemistry of nanoparticles. Our focus lies on metal particles with plasmon excitations and their use as bio-sensors in single molecule investigations. We also study semiconducting and metal-semiconducting hybrid nanoparticles. Furthermore, we are interested in the physical and chemical mechanisms of nanoparticle synthesis itself and the physical and chemical properties of the resulting particles. The group is headed by Prof. Dr. Carsten Sönnichsen and offers interested students countless opportunities to take part in exciting projects.
Gold and silver nanoparticles exhibit interesting color effects in the visible spectral region. They scatter light very strongly and thus act like small nano antennas. We use this property in a novel way to explore single biomolecules (see Research). The picture below shows an example of gold and silver particles in a dark field microscope. Every dot represents a nanoparticle. The picture shows the impression you get when you look into the microscope in real color. The colors gives information about the shape and composition of the particles, which by themself are much to small to see optically. For more information, have a look on our Research Page.
Zsigmondy translation
