We search for neutral heavy leptons that are isosinglets under the standard SU (2)l gauge group. Such neutral heavy leptons are expected in many extensions of the standard model. Three types of heavy leptons Ne, N^, NT associated with the three neutrino types v* have been directly searched for and no evidence for a signal has been found. We set the limit Br(Z° -► z//N*) < 3 x 10" 5 at the 95% CL for the mass range from 3 GeV up to m%.

Percutaneous transluminal angioplasty with stent implantation is used to dilate of arteries narrowed by atherosclerotic plaques and to revascularize coronary arteries occluded by atherothrombosis in myocardial infarction. Commonly applied drug-eluting stents release antiproliferative or anti-inflammatory agents to reduce the incidence of in-stent stenosis. However, these stents may lead to in-stent stenosis and increase the rate late stent thrombosis, an obstacle to Correspondence: Oliver Soehnlein, MD, PhD or Christian Weber, MD, Institute for Cardiovascular Prevention, Pettenkoferstr. 9, 80336 Munich, Phone +49-(0)89-5160-4350, Fax +49-(0)89-5160-4352, oliver.soehnlein@med.uni-muenchen.de or christian.weber@med.uni-muenchen.de. * These authors contributed equally. Competing interests:The authors do not declare any competing financial interests. NIH-PA Author ManuscriptNIH-PA Author Manuscript NIH-PA Author Manuscript optimal revascularization possibly related to endothelial recovery. Here we examined the contribution of neutrophils and neutrophilic granule proteins to arterial healing after injury. We found that neutrophil-born cathelicidin (mouse CRAMP, human LL-37) promoted reendothelization and thereby limited neointima formation after stent implantation. We then translated these findings, generating a neutrophil-instructing biofunctionalized miniaturized Nitinol stent coated with LL-37. This stent reduced in-stent stenosis in a mouse model of atherosclerosis, suggesting that LL-37 may promote vascular healing after interventional therapy.

Metallo-supramolecular systems have been adsorbed in a controlled way onto graphite surfaces and visualized with molecular resolution for the first time. A parallel or orthogonal arrangement of the metal coordination arrays is evident depending on the specific ligands (see picture). Furthermore, simple nanomanipulations were performed by extracting single grids from the layer.

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Semifluorinated diblock copolymers based on methyl methacrylate and 1 H , 1 H,2H,2H-perfluoroalkyl methacrylates were prepared by nucleophilic catalysed group transfer polymerisation. Characterisation was carried out by 'H NMR spectroscopy, differential scanning calorimetry (DSC) and gel-permeation chromatography (GPC) in toluene. The latter method revealed the formation of micelles. The surface activity of the materials was demonstrated by tensiometry using a Wilhelmy balance. Measurements on thin polymer films showed low critical surface tensions and low dispersion force contributions to the surface energy indicating the presence of the fluorinated block at the surface.

The method of incorporating functional data into neuronavigation systems is a promising tool that can be used in more radical surgery to lessen morbidity around eloquent brain areas.

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