Results 21 to 30 of about 2,347 (137)

Nonlinear spectroscopy of plasmonic nanoparticles

Advances in Physics: X, 2018
The plasmon resonance of a metal nanoparticle increases the optical field amplitude in and around the particle with respect to the incoming wave. In consequence, optical effects that are nonlinear in their field amplitude profit from this increased field.
Julian Obermeier, Thorsten Schumacher, Markus Lippitz   +2 more
doaj   +1 more source

Dauphiné twin in a deformed quartz: characterization by electron channelling contrast imaging and large-angle convergent-beam diffraction [PDF]

European Journal of Mineralogy
A Dauphiné twin (DT) in a deformed quartz was visualized for the first time by using orientation-optimized electron channelling contrast imaging (ooECCI) under Bragg conditions of the rhombohedral planes. The visualization in backscattered electron (BSE)
N. Miyajima, D. Silva Souza, F. Heidelbach   +2 more
doaj   +1 more source

Meso-Structuring of SiCN Ceramics by Polystyrene Templates

Nanomaterials, 2015
A simple one-pot synthesis of well-defined PS-silazane nano-composites (polystyrene, PS) is described. In contrast to the, thus far, used two-step procedure ((1) assembly of a PS template bed and (2) careful filling of the voids between the PS spheres),
Julia-Katharina Ewert, Christine Denner, Martin Friedrich, Günter Motz, Rhett Kempe   +4 more
doaj   +1 more source

Stimuli‐Responsive Hierarchical Structuring Controls Survival and Programs Hydrogelation of Supramolecular Metallofibers

Advanced Materials, EarlyView.
Aqueous Zn(II) Salphen metallofibers decorated with PNIPAM undergo reversible, multi‐stimuli‐responsive hierarchical bundling. This higher‐order structuring kinetically stabilizes the otherwise fragile assemblies against dilution, acidic hydrolysis, and transmetallation, enables selective sorting of responsive fibers, and programs hydrogelation at ...
Merlin R. Stühler, László Mérai, Kai Ludwig, Rainer Haag, Quinn A. Besford, Alex J. Plajer   +5 more
wiley   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

Advanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen, Renato S. M. Almeida, Stefan Flauder, Guillaume Couégnat, Kamen Tushtev, Jürgen Horvath, Peter Wriggers, Kurosch Rezwan   +7 more
wiley   +1 more source

Microwave-assisted preparation of yeast cells for ultrastructural analysis by electron microscopy

Microbial Cell
Budding yeast Saccharomyces cerevisiae is widely used as a model organism to study the biogenesis and architecture of organellar membranes, which can be visualized by transmission electron microscopy (TEM). Preparation of yeast cells for TEM can be quite
Moritz Mayer, Christina Schug, Stefan Geimer, Till Klecker, Benedikt Westermann   +4 more
doaj   +1 more source

Crystal structure of 3,4,7,8-bis(1,2-dicarba-closo-dodecaborano[1,2])- 1,2,5,6-tetraselenacyclooctane benzene solvate, [(C2B10H10)Se2]2 · C6D6

Zeitschrift für Kristallographie - New Crystal Structures, 2006
C10H26B20Se4, monoclinic, P121/n1 (no. 14), a = 10.3649(4) Å, b = 13.8582(7) Å, c = 18.3667(8) Å, β = 95.460(3)°, V = 2626.2 Å3, Z = 4, Rgt(F) = 0.040, wRref(F2) = 0.097, T = 193 K.
García-Hernández Z., Wrackmeyer B., Herberhold M., Irrgang T., Kempe R.   +4 more
doaj   +1 more source

Cryo-Electron Microscopy of Arabidopsis thaliana Phytochrome A in Its Pr State Reveals Head-to-Head Homodimeric Architecture

Frontiers in Plant Science, 2021
Phytochrome photoreceptors regulate vital adaptations of plant development, growth, and physiology depending on the ratio of red and far-red light.
Weixiao Yuan Wahlgren, David Golonka, Sebastian Westenhoff, Andreas Möglich, Andreas Möglich, Andreas Möglich   +5 more
doaj   +1 more source

Engineering Na‐Rich P2‐Type Layered Oxides Through Li/Ti Dual Doping for Oxygen Redox Activation and Superior Structural Stability

Advanced Energy Materials, EarlyView.
P2‐type sodium layered oxides have potential for high‐voltage operation but suffer from structural instability and capacity fading. This work demonstrates that synergistic Li and Ti co‐doping enhances sodium inventory, suppresses detrimental phase transitions, and activates reversible lattice oxygen redox.
Rishika Jakhar, Shrestha Ghosh, Adesh Rohan Mishra, Shristi Pradhan, Debalina Sarkar, Yuanlong Bill Zheng, Zengqing Zhuo, Tianyi Li, Lu Ma, Minghao Zhang, Shyue Ping Ong, Matthew Li, Leeann Sun, Prabhat Thapliyal, Jing Wang, Abhik Banerjee, Ying Shirley Meng   +16 more
wiley   +1 more source

Temperate forest heterogeneity decreases local and landscape‐scale spider diversity through habitat filtering despite increasing species turnover

Journal of Animal Ecology, EarlyView.
In a large‐scale German forest experiment, habitat heterogeneity increased spider turnover but reduced local alpha diversity through habitat filtering. Together, these effects lowered landscape‐scale spider diversity. As such, the study shows whether environmental heterogeneity increases or decreases biodiversity depends on the balance between habitat ...
Jean‐Léonard Stör, Julia Rothacher, Marc W. Cadotte, Anne Chao, Maike Huszarik, Michael Junginger, Lisa Köstler‐Albert, Oliver Mitesser, Akira S. Mori, Clara Wild, Jörg Müller   +10 more
wiley   +1 more source