Jordi Arbiol

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Two Cys-containing analogues of the anticancer drug Kahalalide F are synthesized and conjugated to 20 and 40 nm gold nanoparticles (GNPs). The resulting complexes are characterized by different analytical techniques to confirm the attachment of peptide to the GNPs. The self-assembly capacity of a peptide dramatically influences the final ratio number of(More)
D. Spirkoska,1 J. Arbiol,2 A. Gustafsson,3 S. Conesa-Boj,2 F. Glas,4 I. Zardo,1 M. Heigoldt,1 M. H. Gass,5 A. L. Bleloch,5 S. Estrade,2 M. Kaniber,1 J. Rossler,1 F. Peiro,2 J. R. Morante,2,6 G. Abstreiter,1 L. Samuelson,3 and A. Fontcuberta i Morral1,7 1Walter Schottky Institut and Physik Department, Technical University of Munich, Am Coulombwall 3, 85748(More)
Quantum dots embedded within nanowires represent one of the most promising technologies for applications in quantum photonics. Whereas the top-down fabrication of such structures remains a technological challenge, their bottom-up fabrication through self-assembly is a potentially more powerful strategy. However, present approaches often yield quantum dots(More)
A novel concept of dosing iron ions using Fe3O4 engineered nanoparticles is used to improve biogas production in anaerobic digestion processes. Since small nanoparticles are unstable, they can be designed to provide ions in a controlled manner, and the highest ever reported improvement of biogas production is obtained. The nanoparticles evolution during(More)
Martin Heiss,1,2 Sonia Conesa-Boj,2,3 Jun Ren,4 Hsiang-Han Tseng,4 Adam Gali,5 Andreas Rudolph,6 Emanuele Uccelli,1,2 Francesca Peiró,3 Joan Ramon Morante,7,3 Dieter Schuh,6 Elisabeth Reiger,6 Efthimios Kaxiras,4 Jordi Arbiol,8 and Anna Fontcuberta i Morral1,2,* 1Walter Schottky Institut and Physik Department, Technische Universität München, Am Coulombwall(More)
In this paper we introduce a new paradigm for nanowire growth that explains the unwanted appearance of parasitic nonvertical nanowires. With a crystal structure polarization analysis of the initial stages of GaAs nanowire growth on Si substrates, we demonstrate that secondary seeds form due to a three-dimensional twinning phenomenon. We derive the(More)
Hybrids of hydrophobic sub-2-nm-diameter dodecanethiol-coated Au nanoparticles and phosphatidylcholine (PC) lipid vesicles made by extrusion were examined by cryogenic transmission electron microscopy (cryoTEM). The nanoparticles loaded the vesicles as a dense monolayer in the hydrophobic core of the lipid bilayer, without disrupting their structure.(More)
Semiconductor nanowires have stimulated extensive interest in the last decade because of their potential use as building blocks in future generations of electronic and optoelectronic applications. Equally important, their singular geometry provides an opportunity to test fundamental quantum mechanical concepts and related phenomena. Even though significant(More)
Nanocomposites consisting of magnetite and FAU zeolite with a high surface area and adsorption capacity have been prepared by mechanical activation using high-energy milling at room temperature. FTIR results, as well as HRTEM, EFTEM, and XPS measurements, show that the resulting magnetic nanoparticles are covered by a thin aluminosilicate coating. A(More)
We report on the effect of Mg doping on the properties of GaN nanowires grown by plasma assisted molecular beam epitaxy. The most significant feature is the presence of triple-twin domains, the density of which increases with increasing Mg concentration. The resulting high concentration of misplaced atoms gives rise to local changes in the crystal structure(More)