Results 91 to 100 of about 2,330,072 (298)
Advanced Functional Materials, EarlyView.Low‐frequency noise spectroscopy defines the resolvable conductance states of synaptic FeFETs by coupling read‐current fluctuation with usable dynamic range. The resulting noise‐limited bit precision establishes a universal, device‐agnostic reliability metric beyond the memory window, enabling quantitative benchmarking and rational design of high ...
Jaehong Park +12 more
wiley +1 more source
Structural changes during ion channel gating
, 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
Advanced Functional Materials, EarlyView.A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam +10 more
wiley +1 more source
The structure of a voltage gated potassium channel
, 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
Motifs in the permeation pathway of connexin channels mediate Ca2+ and voltage sensing.
Frontiers 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]
, 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
Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing
Advanced 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
Non-equilibrium stochastic dynamics of open ion channels [PDF]
, 2013 We present and discuss a modified version of reaction rate theory (RRT) to describe the passage of a positive ion through a biological ion channel. It takes explicit account of the non-equilibrium nature of the permeation process. Unlike traditional RRT,
Kaufman, Igor +5 more
core +3 more sources
MicroED structure of the NaK ion channel reveals a Na+ partition process into the selectivity filter
Communications 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
PLoS 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