Results 101 to 110 of about 2,338,712 (299)

Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing

open access: yesAdvanced Functional Materials, EarlyView.
A Memristive‐Gated Transistor for Time‐Encoded Analog In‐Memory Computing — By exploiting the RC delay of a self‐rectifying interface‐type memristor, nonlinear I–V distortion is structurally bypassed, enabling 3‐bit nonvolatile memory, spike‐timing‐based analog encoding, and hardware‐calibrated reservoir‐computing validation within a unified device ...
Yun‐Seo Shin   +7 more
wiley   +1 more source

Structural changes during ion channel gating

open access: yes, 2004
Ion channels are generally multi-subunit complexes, with the ion conduction pathway formed at the subunit interface. In moving between the closed and open states, three structurally distinct channels, represented by the recently determined structures of ...
Doyle, Declan A
core  

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

open access: yesAdvanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan   +4 more
wiley   +1 more source

The structure of a voltage gated potassium channel

open access: yes, 2010
Voltage gated potassium channels (Kv channels) are tetrameric ion channels, responsible for regulating the potassium component of the membrane potential in a large range of cell types ranging from mammalian excitable cells to bacteria. Attempts have been
Rogers, Nik
core   +1 more source

MicroED structure of the NaK ion channel reveals a Na+ partition process into the selectivity filter

open access: yesCommunications Biology, 2018
Through a MicroED structure of NaK ion channel, Shian Liu and Tamir Gonen identify a process of dilation coupled with Na+ movement, providing mechanistic insights into ion conduction and gating.
Shian Liu, Tamir Gonen
doaj   +1 more source

Motifs in the permeation pathway of connexin channels mediate Ca2+ and voltage sensing.

open access: yesFrontiers in Physiology, 2014
Connexin channels mediate electrical coupling, intercellular molecular signaling and extracellular release of signaling molecules. Connexin proteins assemble intracellularly as hexamers to form plasma membrane hemichannels.
Andrew L. Harris, Jorge E. Contreras
doaj   +1 more source

Shaped Apertures in Photoresist Films Enhance the Lifetime and Mechanical Stability of Suspended Lipid Bilayers [PDF]

open access: yes, 2014
Planar lipid bilayers suspended in apertures provide a controlled environment for ion channel studies. However, short lifetimes and poor mechanical stability of suspended bilayers limit the experimental throughput of bilayer electrophysiology experiments.
Kalsi, S.   +9 more
core   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

open access: yesAdvanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari   +4 more
wiley   +1 more source

Stochastically gating ion channels enable patterned spike firing through activity-dependent modulation of spike probability.

open access: yesPLoS Computational Biology, 2009
The transformation of synaptic input into patterns of spike output is a fundamental operation that is determined by the particular complement of ion channels that a neuron expresses.
Joshua T Dudman, Matthew F Nolan
doaj   +1 more source

Anisotropic Phonon Dynamics and Directional Transport in Actinide Van der Waals Semiconductor Uranium Triselenide

open access: yesAdvanced Functional Materials, EarlyView.
USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll   +17 more
wiley   +1 more source

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