Results 11 to 20 of about 4,806 (181)

Metathesis-Sourced Epoxides in Ring-Opening Copolymerization: Selective Access to Degradable Polythioesters. [PDF]

Macromol Rapid Commun
Metathesis‐derived cyclopentene epoxides enable strictly alternating, scrambling‐free ring‐opening copolymerization with phthalic thioanhydride, yielding well‐defined polythioesters with molecular weights up to ∼38 kg/mol. Their performance extends to oxygen‐based anhydrides and selective terpolymerizations. Direct comparisons with all‐oxygen analogues
Tangyen N, R Manjunatha B, D'Elia V, Plajer AJ.   +3 more
europepmc   +2 more sources

Flow Simulation and Gradient Printing of Fluorapatite- and Cell-Loaded Recombinant Spider Silk Hydrogels

Biomolecules, 2022
Hierarchical structures are abundant in almost all tissues of the human body. Therefore, it is highly important for tissue engineering approaches to mimic such structures if a gain of function of the new tissue is intended.
Vanessa J. Neubauer, Florian Hüter, Johannes Wittmann, Vanessa T. Trossmann, Claudia Kleinschrodt, Bettina Alber-Laukant, Frank Rieg, Thomas Scheibel   +7 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

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

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

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

Convergence of Organ‐on‐a‐Chip and Freeform Printing of Sacrificial Poly(2‐cyclopropyl‐2‐oxazoline) Enables the Generation of Perfusable Endothelialized Channels in Hydrogels

Macromolecular Rapid Communications, EarlyView.
We employ freeform printing of thermo‐responsive poly(2‐oxazoline) to directly fabricate suspended sacrificial vascular templates within Organ‐on‐a‐chip devices. This enables circular, perfusable channels down to 200 µm without post‐processing.
Giulia Maria Di Gravina, Patrick Kuntschke, Zeno Guttenberg, Philipp Linke, Katja P. Schumann, Meike N. Leiske, Thomas Scheibel, Matthias Ryma   +7 more
wiley   +1 more source