A. Mensch

TU Dresden

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Alexander Tselev

University of Aveiro

H. Geisler

GlobalFoundries (Germany)

W. Pompe

Leipzig University

A.I. Gorbunov

Perm State University

Dirk C. Meyer

TU Bergakademie Freiberg

H. Worch

Max Bergmann Zentrum für Biomaterialien

АА

А. А. Левин

Ioffe Institute

P. Paufler

TU Dresden

A.A. Gorbunov

TU Dresden

J. Noetzel

Charité - Universitätsmedizin Berlin

Cooperative Institutions

TU Dresden

Leibniz Institute for Solid State and Materials Research

Max Planck Society

Helmholtz-Zentrum Dresden-Rossendorf

Max Bergmann Zentrum für Biomaterialien

Fraunhofer Institute for Material and Beam Technology

Leibniz Institute of Polymer Research

TU Bergakademie Freiberg

Leibniz Institute for Neurobiology

Deggendorf Institute of Technology

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Insights into Chemistry of Biological Materials: Newly Discovered Silica-Aragonite-Chitin Biocomposites in Demosponges

Chemistry of Materials (2010)

Hermann Ehrlich Paul Simon W. Carrillo‐Cabrera Vasilii V. Bazhenov Joseph P. Botting

Biological materials are a rewarding area of modern materials science, yielding both evolutionary insights and inspiration for biomimetic research. In particular, biocomposite structures are valuable sources of novel structures with unusual chemical properties, and they are very informative for the mechanisms of biomineralization. Here we describe a unique biocomposite of amorphous silica, crystalline aragonite, and chitin from species of the order Verongida, a group of marine sponges. The structures have been analyzed with a diverse suite of techniques, revealing a chitinous template for siliceous overgrowth containing aragonite-based crystal aggregates. Sponge chitin is an example of a specific template where two minerals in amorphous and crystalline forms are formed together with an organic molecule.

Biocomposite

Biomimetic Materials

Amorphous calcium carbonate

Amorphous silica

10.1021/cm9026607

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Citations (122)

Metastable Phase Formation in Fe-Al Thin Films Cocondensed by Cross-Beam Pulsed Laser Deposition

Journal of Metastable and Nanocrystalline Materials (2000)

H. Geisler A. Mensch Alexander Tselev A.I. Gorbunov H. Worch

Metastability

Deposition

Pulsed Laser Deposition

Pulsed laser

10.4028/www.scientific.net/jmnm.8.249

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Citations (0)

Structural Characterization of Laser Deposited Fe/Al Multilayers

Journal of Metastable and Nanocrystalline Materials (2000)

K.D. Brand J. Noetzel H. Geisler A. Mensch A.I. Gorbunov

Characterization

10.4028/www.scientific.net/jmnm.8.237

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Production of Thin Films of Metastable Materials by Cross-Beam Pulsed Laser Deposition

Journal of Metastable and Nanocrystalline Materials (2000)

Alexander Tselev A.I. Gorbunov H. Geisler A. Mensch D.C. Meyer

Deposition

Metastability

Pulsed Laser Deposition

10.4028/www.scientific.net/jmnm.8.231

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<title>Structural peculiarities of metal alloy and multilayer films synthesized from laser erosion plasma</title>

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2001)

A.A. Gorbunov Alexander Tselev А. А. Левин A. Mensch Dirk C. Meyer

Results of experimental investigations and numerical simulations of thin films and multilayers of Fe-Al and Co-Cu binary systems synthesized by PLD are presented. The influence of specific features of PLF on the structure of thin metal and alloy films is discussed. Examples of non- conventional microstructure formation are given.

10.1117/12.413765

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Citations (2)

Metallization of bacterial surface layer by cross-beam pulsed laser deposition

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (1996)

W. Pompe Michael Mertig Remo Kirsch A.A. Gorbunov A. Sewing

We present first results on thin film metal deposition on the regular bacterial surface layer of Sporsarcina urea by pulsed laser deposition. To prevent structural damage of the biological specimen a recently developed cross beam technique is applied providing an effective filtering of the most energetic plasma particles. The deposited films are examined by low voltage scanning electron microscopy. The surface profile of the S-layer adsorbed onto mica substrate was investigated by atomic force microscopy. A lattice constant of 13.2 nm has been measured. The lattice parameters and the structural appearance of the protein layer is in reasonable agreement with the results of an electron microscopical 3D structural analysis.

Pulsed Laser Deposition

Deposition

Lattice constant

Layer by layer

10.1117/12.237034

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Citations (9)

Metastable Phase Formation in Fe-Al Thin Films Cocondensed by Cross-Beam Pulsed Laser Deposition

Materials science forum (2000)

H. Geisler A. Mensch Alexander Tselev A.I. Gorbunov H. Worch

Metastability

Deposition

Pulsed Laser Deposition

10.4028/www.scientific.net/msf.343-346.249

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Citations (1)

Superhydrophobic Alumina Surfaces Based on Polymer‐Stabilized Oxide Layers

Macromolecular Chemistry and Physics (2009)

Susanne Höhne Christa Blank A. Mensch M. Thieme Ralf Frenzel

Abstract Aluminum sheets were furnished with a water‐repellent composite layer consisting of microroughened alumina, chitosan (CHS), and poly[octadecene‐ alt ‐(maleic anhydride)] (POMA). CHS was electrochemically deposited or spin‐coated. In a subsequent reaction step, POMA was covalently bonded onto the immobilized CHS layer. The produced composite layers showed superhydrophobic properties, which are indicated by the water contact angles >150° and negligible hysteresis. Cross‐linking reactions of the CHS layer were able to enhance the layer stability. The superhydrophobic surface properties were also maintained after abrasion of the protruding polymer‐coated alumina peaks. This is due to a CHS/POMA reservoir incorporated in the microroughened alumina surface region. magnified image

Maleic anhydride

Hysteresis

Abrasion (mechanical)

10.1002/macp.200900096

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Citations (36)

Analytical TEM Investigations of Laser-Deposited Fe/Al Multilayers

International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde) (1999)

H. Geisler A. Mensch A.I. Gorbunov Alexander Tselev J. Noetzel

10.1515/ijmr-1999-900908

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Citations (0)