Results 121 to 130 of about 129,353 (325)
Journal of Magnetic Resonance Open, 2020 The NMR community is well acquainted with different kinds of diffusion but, at the same time, there are several effects that are worth a better understanding for an improved design of molecular imaging and dynamic nuclear polarization experiments.
Enrico Ravera +3 more
doaj +1 more source
, 2018 The ability to optically initialize the electronic spin of the nitrogen-vacancy (NV) center in diamond has long been considered a valuable resource to enhance the polarization of neighboring nuclei, but efficient polarization transfer to spin species ...
Dasari, D. B. R. +8 more
core +1 more source
Advanced Science, EarlyView.This study presents a wireless, non‐invasive strategy for neural repair by developing a biodegradable piezoelectric dural patch that, under transcranial ultrasound, generates localized electrical fields to drive endogenous neural stem cells toward neuronal differentiation and functional integration.
Pengbo Zhou +7 more
wiley +1 more source
Journal of Neuroscience, 1998 Step hyperpolarizations evoked slowly activating, noninactivating, and slowly deactivating inward currents from membrane patches recorded in the cell-attached patch configuration from the soma and apical dendrites of hippocampal CA1 pyramidal neurons ...
J. Magee
semanticscholar +1 more source
Advanced Science, EarlyView.Fibrotic scarring persistently challenges urethral reconstruction. This study introduces a conformal, wearable ultrasound bioelectronic system that overcomes this by reprogramming fibroblast fate. The device activates a developmental Wnt–FGF10 axis, driving fibroblasts toward a regenerative FGF10+ phenotype that promotes angiogenesis and matrix ...
Mingming Yu +7 more
wiley +1 more source
, 2016 We propose a robust and highly efficient NMR technique to create singlet spin order from longitudinal spin magnetization in coupled spin-1/2 pairs and to perform backward conversion (singlet order)$\to$magnetization.
Ivanov, Konstantin L. +4 more
core +1 more source
Parahydrogen‐Induced Hyperpolarization of Gases
Angewandte Chemie International Edition, 2020 AbstractImaging of gases is a major challenge for any modality including MRI. NMR and MRI signals are directly proportional to the nuclear spin density and the degree of alignment of nuclear spins with applied static magnetic field, which is called nuclear spin polarization.
Kirill V. Kovtunov +6 more
openaire +3 more sources
15N Hyperpolarization by Reversible Exchange Using SABRE-SHEATH
The journal of physical chemistry. C, Nanomaterials and interfaces, 2015 NMR signal amplification by reversible exchange (SABRE) is a NMR hyperpolarization technique that enables nuclear spin polarization enhancement of molecules via concurrent chemical exchange of a target substrate and parahydrogen (the source of spin order)
M. Truong +8 more
semanticscholar +1 more source
Advanced Electronic Materials, EarlyView.A fully coupled FEM–HH model shows that ideally capacitive microelectrodes can achieve lower charge‐density thresholds than Faradaic contacts under current‐controlled stimulation. The advantage stems from the dynamics of surface current density on capacitive interfaces, which redirects current beneath adherent neurons.
Aleksandar Opančar +2 more
wiley +1 more source
A Dopamine-Acetylcholine Cascade: Simulating Learned and Lesion-Induced Behavior of Striatal Cholinergic Interneurons [PDF]
, 2007 The "teaching signal" that modulates reinforcement learning at cortico-striatal synapses may be a sequence composed of an adaptively scaled DA burst, a brief ACh burst, and a scaled ACh pause.
Bullock, Daniel, Tan, Can Ozan
core +1 more source