Results 121 to 130 of about 2,330,072 (298)

Kinetic model based on molecular mechanism for action potential [PDF]

, 2011
The Hodgkin-Huxley model for action potentials has been widely used but was not built on a microscopic description of the neuronal membrane. Through molecular dynamics simulations, the molecular mechanism of the channel currents is becoming clear ...
Lizhong Xu
core  

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

What have we learned from two-pore potassium channels? Their molecular configuration and function in the human heart [PDF]

, 2012
Two-pore domain potassium channels (K2P) control excitability, stabilize the resting membrane potential below firing threshold, and accelerate repolarisation in different cells.
Szalontai, B., Ötvös, Ferenc, Benyhe, S., Boyett, M., Vágvölgyi, Csaba, Szûts, V., Papp, J.G., Dobrzynski, H.; id_orcid, Szüts, Viktória, Dézsi, László, Szalontai, Balázs, Dobrzynski, Halina, Zhang, Henggui, Benyhe, Sándor, Dézsi, L., Varró, András, Boyett, Marc, Vágvölgyi, C., Varró, A., Ötvös, F., Zhang, H., Papp, Gyula, Erdélyi, L., Erdélyi, Lajos   +23 more
core   +2 more sources

Information Entropy Metrics to Address the Complexity of Cooperative Gating of Ion Channels

Entropy
Ion channels in biological membranes can form spatially localized clusters that exhibit cooperative gating behavior. In this mode, the activity of one channel modulates the opening probability of its neighbors.
Agata Wawrzkiewicz-Jałowiecka, Paulina Trybek, Michał Wojcik, Przemysław Borys   +3 more
doaj   +1 more source

Structure‐Guided Balancing of Ambipolar Transport Enables Symmetric Switching in Heterojunction Bilayer Organic Transistor Inverters

Advanced Functional Materials, EarlyView.
Balancing the spatially separated p‐ and n‐type transport pathways in heterojunction‐bilayer OTFTs enables symmetric inverter switching (VM ≈ 0.5VDD), whereas discrete integration of unipolar OTFTs gives polarity‐dependent and resistive responses. ABSTRACT High inverter performance in ambipolar organic electronics requires balanced channel strengths ...
Sohyun Choi, Young Yong Kim, Ji Ho Youk, Hoichang Yang   +3 more
wiley   +1 more source

The Outer Vestibule of the Na+ Channel–Toxin Receptor and Modulator of Permeation as Well as Gating

Marine Drugs, 2010
The outer vestibule of voltage-gated Na+ channels is formed by extracellular loops connecting the S5 and S6 segments of all four domains (“P-loops”), which fold back into the membrane. Classically, this structure has been implicated in the control of ion
René Cervenka, Touran Zarrabi, Peter Lukacs, Hannes Todt   +3 more
doaj   +1 more source

An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing

Advanced Functional Materials, EarlyView.
Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek, Junhwa Oh, Hyeonjung Kim, Minsik Park, Haein Cho, Jin Young Park, Hyeonchang Son, Taeyun Kim, Sung‐Un An, Yamin Zhang, Hyeon‐Jin Shin, Seyong Oh, Dong‐Ho Kang   +12 more
wiley   +1 more source

Reptation theory of ion channel gating

Biophysical Journal, 1990
Reptation theory is a highly successful approach for describing polymer dynamics in entangled systems. In turn, this molecular process is the basis of viscoelasticity. We apply a modified version of reptation dynamics to develop an actual physical model of ion channel gating.
openaire   +2 more sources

Genetically Programmed Shape‐Morphing of Engineered Living Materials

Advanced Functional Materials, EarlyView.
Here, bacterial and mammalian engineered living materials (ELMs) are presented, in which living cells direct genetically programmed and enzymatically mediated shape‐morphing. The resulting deformation and shape‐recovery can be actuated in a genetically controlled manner by an ELM incorporating out‐of‐equilibrium counteracting biochemical reactions with
Jan Becker, Yuchen Liu, Miguel Baños, Rosanne Schmachtenberg, Mahmudul Hasan, Claudia Fink‐Straube, Luai R. Khoury, Wilfried Weber   +7 more
wiley   +1 more source

Ca2+-regulated Ca2+ channels with an RCK gating ring control plant symbiotic associations

Nature Communications, 2019
CASTOR is a Lotus japonicus ion channel required for nuclear Ca2+ spiking and establishing rhizobial and mycorrhizal symbioses. Here, via structural and functional analysis, Kim et al.
Sunghoon Kim, Weizhong Zeng, Shane Bernard, Jun Liao, Muthusubramanian Venkateshwaran, Jean-Michel Ane, Youxing Jiang   +6 more
doaj   +1 more source