J
Joachim Urban
Researcher at Max Planck Society
Publications - 53
Citations - 3601
Joachim Urban is an academic researcher from Max Planck Society. The author has contributed to research in topics: Nanoparticle & High-resolution transmission electron microscopy. The author has an hindex of 27, co-authored 53 publications receiving 3370 citations. Previous affiliations of Joachim Urban include Fritz Haber Institute of the Max Planck Society.
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Extracellular synthesis of silver nanoparticles by a silver-tolerant yeast strain MKY3
Meenal Kowshik,Shriwas Ashtaputre,Sharmin Kharrazi,Walter Vogel,Joachim Urban,Sulabha K. Kulkarni,Kishore M. Paknikar +6 more
TL;DR: In this paper, the size range of 2-5 nm was synthesized by a yeast strain MKY3, when challenged with 1 mM soluble silver in the log phase of growth and the nanoparticles were separated from dilute suspension by devising a new method based on differential thawing of the sample.
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Microbial synthesis of semiconductor CdS nanoparticles, their characterization, and their use in the fabrication of an ideal diode
Meenal Kowshik,Neelima Deshmukh,Walter Vogel,Joachim Urban,Sulabha K. Kulkarni,Kishore M. Paknikar +5 more
TL;DR: Cadmium sulfide nanoparticles were synthesized intracellularly by a Schizosaccharomyces pombe strain when challenged with 1 mM cadmium in solution and exhibited an absorbance maximum at 305 nm.
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Microbial synthesis of semiconductor PbS nanocrystallites
TL;DR: The use of microbes as producers of semiconductor nanocrystals is demonstrated in this paper, where torulopsis yeast is challenged with lead, and it builds intracellular spherical crystallites of PbS, 2-5 nm in diameter and pure by X-ray diffraction.
Journal Article
Nanoshell particles: synthesis, properties and applications
TL;DR: Nanoshells, which are thin coatings deposited on core particles of different material have gained considerable attention and can be prepared with customized properties such as increased stability, surface area, magnetic, optical and catalytic properties.
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Structural investigations of copper nanorods by high-resolution TEM
Isabelle Lisiecki,Isabelle Lisiecki,Arlette Filankembo,Arlette Filankembo,Hilde Sack-Kongehl,Klaus Weiss,Marie-Paule Pileni,Marie-Paule Pileni,Joachim Urban +8 more
TL;DR: In this article, high-resolution transmission electron microscopy and electron diffraction were performed in order to explain the structure of the rods, which were held to be truncated decahedra with a fivefold symmetry, i.e., the fivefold axis very often was parallel to the surface of the substrate.