Results 191 to 200 of about 550,518 (231)

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

Advanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang, Rohan Dhall, Matthew M. Schneider, Cun Li, Chengyu Song, Sundar Kunwar, Hongyi Dou, Natanii R. Yazzie, Henry Tran, Daniel Appuing, Jim Ciston, Nicholas G. Cucciniello, Pinku Roy, Michael T. Pettes, John Watt, Winson Kuo, Haiyan Wang, Ye Cao, Rodney J. McCabe, Aiping Chen   +19 more
wiley   +1 more source

Tailoring Microstructure in Copper‐Based Conductive Metal–Organic Frameworks for Enhanced Chemiresistive Sensing and Uptake of Sulfur Dioxide

Advanced Functional Materials, EarlyView.
Precursor‐ and solvent‐mediated synthesis yields four Cu3(HHTP)2 morphologies with distinct physicochemical, sorption, and sensing properties toward SO2. Uptake capacities correlate with BET surface area, while sensing performance scales with particle aspect ratio.
Patrick Damacet, Zhuoran Zhong, Elí Sánchez‐González, Camille L. Slagle, Ilich A. Ibarra, Katherine A. Mirica   +5 more
wiley   +1 more source

Cryogenic Focused Ion Beam Milling to Investigate the Anisotropic Magnetotransport Properties of Bismuth Microcrystals

Advanced Functional Materials, EarlyView.
The highly anisotropic Fermi surface of bismuth results in variations in magnetotransport properties across different crystallographic directions, which can be characterized by studying microcrystals. To avoid the observed surface melting under room temperature Focused Ion Beam (FIB) irradiation, two low‐temperature FIB fabrication methods are proposed
Amaia Sáenz‐Hernández, Soraya Sangiao, Claudia Felser, Chandra Shekhar, José Ángel Pardo, Alfonso Ibarra, José María De Teresa   +6 more
wiley   +1 more source

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Inherent Structures of Crystalline Tetracene

The Journal of Physical Chemistry A, 2006
We have systematically sampled the potential energy surface of crystalline tetracene to identify its local minima. These minima represent all possible stable configurations and constitute the "inherent structures" of the system. The crystal is described in terms of rigid molecules with Coulombic and atom-atom interactions.
DELLA VALLE, RAFFAELE GUIDO, VENUTI, ELISABETTA, BRILLANTE, ALDO, A. Girlando   +3 more
openaire   +4 more sources

Crystalline Structure in Starch

2015
Many reviews have been published on the crystalline structure of the starch granule, addressing aspects such as birefringence, crystallinity, and structural models for A- and B-type starches. After a synthetic presentation of the general knowledge on this topic, the present review focuses on a critical description of the main techniques used to ...
Lourdin, Denis, Putaux, Jean-Luc, Veronese, Gabrielle, Chevigny, Chloé, Rolland-Sabaté, Agnès, Buleon, Alain   +5 more
openaire   +2 more sources

Crystalline Structure of Heparin

1975
Current trends in molecular biology argue convincingly in favor of a precise relation between biologic function and shape of macromolecules. This is especially relevant in the case of heparin; the evidence points to a specific inhibition by this highly charged polysaccharide of protein molecules involved in blood coagulation.
E D, Atkins, I A, Nieduszynski
openaire   +2 more sources

Structure of crystalline methyl-chymotrypsin

Journal of Molecular Biology, 1972
Alpha-chymotrypsin, methylated specifically at the Nδ2-position of His-57, crystallizes isomorphously with the native enzyme. This finding enabled us to determine the structure of methyl-chymotrypsin utilizing the phase information of tosyl-chymotrypsin.
C S, Wright, G P, Hess, D M, Blow
openaire   +2 more sources

Structure of crystalline actin sheets

Nature, 1980
Although actin is one of the most abundant proteins found in nature, little detailed information about its molecular structure is available beyond the amino acid sequence. Electron microscopy of negatively stained filaments combined with three-dimensional image reconstruction techniques have revealed the overall size and shape of the actin monomer at ...
U, Aebi, P R, Smith, G, Isenberg, T D, Pollard   +3 more
openaire   +2 more sources

Crystalline Structures of Alginic Acids

Nature, 1970
WE have recently obtained X-ray diffraction photographs from orientated samples of alginic acid preparations in which the ratio of mannuronic acid to guluronic acid was known. The purified unorientated material was supplied by Dr A. Haug, and our results form the basis for structure determinations of polymannuronic acid and polyguluronic acid ...
E D, Atkins, W, Mackie, E E, Smolko
openaire   +2 more sources

Hydrogels with Crystalline or Liquid Crystalline Structure

Macromolecular Rapid Communications, 2002
The formation of ordered structure in hydrogels derived from copolymers of hydrophilic and hydrophobic monomers with crystalline or liquid-crystalline moieties is reviewed. The role of water in the formation of ordered structure and its influence on the thermal and mechanical properties of hydrogels are clarified.
Takashi Miyazaki, Kanji Yamaoka, Jian Ping Gong, Yoshihito Osada   +3 more
openaire   +1 more source