Emergent helical texture of electric dipoles
نویسندگان
چکیده
منابع مشابه
Electric dipoles at ultralow temperatures
Any object with a net positive charge on one end and a net negative charge on the other end possesses an electric dipole moment. In ordinary classical electromagnetism this dipole moment is a vector quantity that can point in any direction, and is subject to electrical forces that are fairly straightforward to formulate mathematically. However, for a quantum mechanical object like an atom or mo...
متن کاملCollective behavior of oscillating electric dipoles
Simona Olmi, 2, ∗ Matteo Gori, 4, † Irene Donato, ‡ and Marco Pettini 4, § Institut für Theoretische Physik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany CNR Consiglio Nazionale delle Ricerche Istituto dei Sistemi Complessi, 50019, Sesto Fiorentino, Italy Aix Marseille Univ, CNRS, CPT, Marseille, France CNRS Centre de Physique Théorique UMR7332, 13288 Marseille, Franc...
متن کاملModeling nonaqueous proton wires built from helical peptides: biased proton transfer driven by helical dipoles.
We report gas-phase electronic structure calculations on helical peptides that act as scaffolds for imidazole-based hydrogen-bonding networks (proton wires). We have modeled various 21-residue polyalanine peptides substituted at regular intervals with histidines (imidazole-bearing amino acids), using a hybrid approach with a semiempirical method (AM1) for peptide scaffolds and density functiona...
متن کاملElectric Field-Driven Water Dipoles: Nanoscale Architecture of Electroporation
Electroporation is the formation of permeabilizing structures in the cell membrane under the influence of an externally imposed electric field. The resulting increased permeability of the membrane enables a wide range of biological applications, including the delivery of normally excluded substances into cells. While electroporation is used extensively in biology, biotechnology, and medicine, i...
متن کاملThermodynamics of a continuous medium with electric and magnetic dipoles
The thermodynamics of an electrically charged, multicomponent fluid with spontaneous electric and magnetic dipoles is analysed in the presence of electromagnetic fields. Taking into account the chemical composition of the current densities and stress tensors leads to three types of irreversible terms: scalars, vectors and pseudo-vectors. The scalar terms account for chemical reactivities, the v...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 2020
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.aay7356