Results 251 to 260 of about 399,096 (271)

Phonon Driven Ferroelectricity and Raman Active Modes in Hybrid Organic‐Inorganic Perovskites

Advanced Materials, EarlyView.
Ferroelectric domains, a hallmark of ferroelectricity, are studied using temperature‐dependent Raman spectroscopy to uncover characteristic phonons associated with ferroelectric phase transitions in different n‐value HOIPs. Higher n‐value HOIP demonstrate a reduced ferroelectric switching energy barrier, providing valuable insights for optimizing ...
Chuanzhao Li, Shurong Yuan, Yixin Li, Zhenyue Wu, Yuanyuan Jin, Kian Ping Loh, Kai Leng   +6 more
wiley   +1 more source

Advancements in Carbon‐Based Piezoelectric Materials: Mechanism, Classification, and Applications in Energy Science

Advanced Materials, EarlyView.
Carbon‐based piezoelectric materials are systematically categorized based on their structural and functional properties. The mechanisms of stress‐induced charge transfer are elucidated, and their applications are explored across three key domains: piezoelectric catalysis for energy conversion and environmental remediation, piezoelectric biomedical ...
Mude Zhu, Qingyou Liu, Wai‐Yeung Wong, Linli Xu   +3 more
wiley   +1 more source

Plaque‐Targeted Delivery of Fluoride‐Free MXene Nanozyme for Alleviating Atherosclerosis via Sonocatalytic Therapy

Advanced Materials, EarlyView.
This work has developed a dual enzyme‐mimicking and ultrasound‐responsive Nb2C‐Pt@HA‐PEG nanozyme. ROS‐eliminating and anti­inflammatory capability of Nb2C‐Pt@HA‐PEG under US irradiation are demonstrated on macrophages and endothelial cells in vitro. Nb2C‐Pt@HA‐PEG‐mediated sonocatalytic therapy exerts an outstanding anti‐atherosclerosis efficacy by ...
Qianqian Bai, Xinyue Lao, Sin‐Yi Pang, Yifei Zhao, Yuan Liu, Xiao Yu Tian, Jianhua Hao   +6 more
wiley   +1 more source

DNA‑Directed Assembly of Photonic Nanomaterials for Diagnostic and Therapeutic Applications

Advanced Materials, EarlyView.
DNA‐directed assembly offers a powerful strategy for constructing structured photonic nanomaterials with precise spatial control. This review provides a comprehensive overview of recent advancements in DNA‐assembled photonic nanomaterials for diagnostics and therapeutics, highlighting key design principles, functionalization strategies, and optical ...
Longjiang Ding, Bing Liu, Andreas Peil, Sisi Fan, Jie Chao, Na Liu   +5 more
wiley   +1 more source

Unraveling the Complexity of the Dzyaloshinskii–Moriya Interaction in Layered Magnets: The Full Magnitude and Chirality Control

Advanced Materials, EarlyView.
In layered magnets, the atomistic Dzyaloshinskii–Moriya interaction (DMI) depends critically not only on the orbital occupancy of the interface layer but also on the sequence of the atomic layers. The effect can be understood by analyzing the contributions of different orbitals to DMI.
Khalil Zakeri, Albrecht von Faber, Sergiy Mankovsky, Hubert Ebert   +3 more
wiley   +1 more source

Topology in Biological Piezoelectric Materials

Advanced Materials, EarlyView.
This review summarizes the topological structures in biological piezoelectric materials, covering morphology evolution, spatial arrangement, and biomimetic strategies. These topologies modulate structure‐property relationships across multiple scales, enabling performance enhancement and multifunctional integration.
Chen Chen, Yanhu Zhang, Yi Zheng, Yi Zhang, Hongyi Liu, Jiang Wu, Liang Yang, Zhengbao Yang   +7 more
wiley   +1 more source

Breaking symmetry in SMCs [PDF]

Nature Structural & Molecular Biology, 2013
SMC (structural maintenance of chromosomes) protein complexes act in chromosome processing in all domains of life. In this issue, a study of the prokaryotic SMC complex Smc–ScpAB reveals an unanticipated asymmetry despite Smc forming a symmetric homodimer.
Amy L. Upton, David J. Sherratt
openaire   +2 more sources

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On the lorentz-symmetry breaking

Il Nuovo Cimento A, 1988
Moving from a theory that allows for the break of the Lorentz symmetry in the tangent space-time within a Riemannian geometric framework, this paper looks for the admissible values of the parameters that measure the break. These values are explicitly worked out in some special cases and it is shown that all of them must be zero.
TARTAGLIA, Angelo, ZHANG YUAN ZHONG
openaire   +3 more sources

Symmetry Breaking

2021
A brief introduction to the physics and philosophy of symmetry breaking.
Elena Castellani, Radin Dardashti
openaire   +2 more sources

Symmetry breaking symmetry

2008
Scarcely any term connects art and science more closely than symmetry. This was already a theme in ancient times, as is found in Vitruvius, for example. On the beach of an unknown island, a shipwrecked traveler finds neatly arranged geometric figures. Can he conclude from this that there is an intelligent creator (perhaps even a god)?
Otto E. Rössler, Peter Weibel, Magdolna Hargittai, Szaniszló Bérczi, Francois Molnár, Erwin Chargaff, István Hargittai, Arthur P. Schmidt, Vera Molnár, Michael Stöltzner   +9 more
openaire   +2 more sources