Results 101 to 110 of about 108,977 (287)

Characterization of an Injectable Poly(vinyl alcohol)‐gelatin Hydrogel for Growth Factor Delivery in an Orthopedic Application

open access: yesAdvanced Healthcare Materials, EarlyView.
This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni   +15 more
wiley   +1 more source

Ciguatoxins: Cyclic Polyether Modulators of Voltage-gated Iion Channel Function

open access: yesMarine Drugs, 2006
Ciguatoxins are cyclic polyether toxins, derived from marine dinoflagellates, which are responsible for the symptoms of ciguatera poisoning. Ingestion of tropical and subtropical fin fish contaminated by ciguatoxins results in an illness characterised by
Richard J. Lewis, Graham M. Nicholson
doaj   +1 more source

Optimization of the leak conductance in the squid giant axon

open access: yes, 2010
We report on a theoretical study showing that the leak conductance density, $\GL$, in the squid giant axon appears to be optimal for the action potential firing frequency.
A. L. Hodgkin   +7 more
core   +1 more source

Noncanonical Roles of Voltage-Gated Sodium Channels

open access: yesNeuron, 2013
The Hodgkin-Huxley formulation, at its 60th anniversary, remains a bastion of neuroscience. Sodium channels Nav1.1-Nav1.3 and Nav1.6-Nav1.9 support electrogenesis in neurons and are often considered "neuronal," whereas Nav1.4 and Nav1.5 drive electrogenesis in skeletal and cardiac muscle.
Black, Joel A., Waxman, Stephen G.
openaire   +2 more sources

Peptomer Linkers Enable Kinetic Control over Co‐Delivery of Multiple Chemotherapeutics

open access: yesAdvanced Healthcare Materials, EarlyView.
A key challenge in combinatorial chemotherapeutic drug delivery is independent control over release kinetics, especially with drugs of similar size and structure. Here, peptoid substitutions to proteolytically degradable peptides enabled the design of fast and slow‐releasing drug linkers.
Carolyn M. Watkins   +3 more
wiley   +1 more source

Molecular and functional characterization of voltage-gated sodium channels in human sperm

open access: yesReproductive Biology and Endocrinology, 2009
Background We have investigated the expression of voltage-gated sodium channels in human spermatozoa and characterized their role in sperm motility. Methods Freshly ejaculated semen was collected from thirty normozoospermic human donors, with each donor ...
Cejudo-Román Antonio   +5 more
doaj   +1 more source

Thermal Processing Creates Water‐Stable PEDOT:PSS Films for Bioelectronics

open access: yesAdvanced Materials, Volume 37, Issue 13, April 2, 2025.
Instead of using chemical cross–linkers, it is shown that PEDOT:PSS thin films for bioelectronics become water‐stable after a simple heat treatment. The heat treatment is compatible with a range of rigid and elastomeric substrates and films are stable in vivo for >20 days.
Siddharth Doshi   +16 more
wiley   +1 more source

Ion channels: structural basis for function and disease. [PDF]

open access: yes, 1996
Ion channels are ubiquitous proteins that mediate nervous and muscular function, rapid transmembrane signaling events, and ionic and fluid balance. The cloning of genes encoding ion channels has led to major strides in understanding the mechanistic basis
Goldstein, SA
core   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long   +26 more
wiley   +1 more source

The Segregated Expression of Voltage-Gated Potassium and Sodium Channels in Neuronal Membranes: Functional Implications and Regulatory Mechanisms

open access: yesFrontiers in Cellular Neuroscience, 2017
Neurons are highly polarized cells with apparent functional and morphological differences between dendrites and axon. A critical determinant for the molecular and functional identity of axonal and dendritic segments is the restricted expression of ...
Jeffrey Lopez-Rojas   +4 more
doaj   +1 more source

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