Results 81 to 90 of about 88,078 (299)

SABRE Ir-IMes Catalysis for the Masses

Molecules
The Signal Amplification By Reversible Exchange (SABRE) technique provides enhancement of Nuclear Magnetic Resonance (NMR) signals up to several orders of magnitude using chemical exchange of a substrate and parahydrogen on an iridium complex. Therefore,
Izabelle Smith, Noah Terkildsen, Zachary Bender, Abubakar Abdurraheem, Shiraz Nantogma, Anna Samoilenko, Joseph Gyesi, Larisa M. Kovtunova, Oleg G. Salnikov, Igor V. Koptyug, Raphael Kircher, Danila A. Barskiy, Eduard Y. Chekmenev, Roman V. Shchepin   +13 more
doaj   +1 more source

Decay of nuclear hyperpolarization in silicon microparticles [PDF]

, 2011
We investigate the low-field relaxation of nuclear hyperpolarization in undoped and highly doped silicon microparticles at room temperature following removal from high field.
A. Abragam, A. Abragam, C. M. Marcus, C. Ramanathan, M. C. Cassidy, M. Lee, N. T. Bagraev, N. T. Bagraev, N. T. Bagraev, N. T. Bagraev   +9 more
core   +3 more sources

Sustainable Synaptic Device with Two‐Dimensional Ferroelectric Materials for Neuromorphic Computing

Advanced Science, EarlyView.
α‐In2Se3 based FeSFETs can be utilized as sustainable devices through polarization switching governed by both out‐of‐plane and in‐plane polarizations. Upon reaching a fatigued state, current annealing enabled by conductance modulation can significantly enhance the endurance of FeSFETs.
Jaewook Yoo, Seokjin Oh, Minah Park, Jong Min Song, Hongseung Lee, Seohyeon Park, Sojin Jung, Seongbin Lim, Soohyun Lim, Dongsun Shin, Ji Won Heo, TaeWan Kim, Hagyoul Bae   +12 more
wiley   +1 more source

Cardiac pH-Imaging With Hyperpolarized MRI

Frontiers in Cardiovascular Medicine, 2020
Regardless of the importance of acid-base disturbances in cardiac disease, there are currently no methods for clinical detection of pH in the heart. Several magnetic resonance imaging techniques hold translational promise and may enable in-vivo mapping ...
Nikolaj Bøgh, Esben Søvsø Szocska Hansen, Christian Østergaard Mariager, Lotte Bonde Bertelsen, Steffen Ringgaard, Christoffer Laustsen   +5 more
doaj   +1 more source

Capacitive versus Faradaic Microelectrodes for Extracellular Stimulation: A Fully Coupled FEM–Hodgkin–Huxley Study of Thresholds and Current Redistribution

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, Eric Daniel Głowacki, Vedran Đerek   +2 more
wiley   +1 more source

A Controlled System for Parahydrogen Hyperpolarization Experiments

Molecules
Parahydrogen-induced hyperpolarization (PHIP), introduced nearly four decades ago, provides an elegant solution to one of the fundamental limitations of nuclear magnetic resonance (NMR)—its notoriously low sensitivity.
Lorenzo Franco, Federico Floreani, Salvatore Mamone, Ahmed Mohammed Faramawy, Marco Ruzzi, Cristina Tubaro, Gabriele Stevanato   +6 more
doaj   +1 more source

Hyperpolarization of Nitrile Compounds Using Signal Amplification by Reversible Exchange

Molecules, 2020
Signal Amplification by Reversible Exchange (SABRE), a hyperpolarization technique, has been harnessed as a powerful tool to achieve useful hyperpolarized materials by polarization transfer from parahydrogen.
Sarah Kim, Sein Min, Heelim Chae, Hye Jin Jeong, Sung Keon Namgoong, Sangwon Oh, Keunhong Jeong   +6 more
doaj   +1 more source

The Effects of Serotonin on Functionally Diverse Isolated Lamprey Spinal Cord Neurons [PDF]

, 2002
The experiments reported here showed that application of serotonin (5-hydroxytryptamine, 5-HT) (100 µ M) did not induce any significant current through the membranes of any of the spinal neurons studied (n = 62).
Batueva, I. V., Buchanan, James T., Suderevskaya, E. I., Tsvetkov, E. A., Veselkin, N. P.   +4 more
core   +1 more source

11,12-EET stimulates the association of BK channel α and β(1) subunits in mitochondria to induce pulmonary vasoconstriction [PDF]

, 2012
In the systemic circulation, 11,12-epoxyeicosatrienoic acid (11,12-EET) elicits nitric oxide (NO)- and prostacyclin-independent vascular relaxation, partially through the activation of large conductance Ca2+-activated potassium (BK) channels. However, in
Daiber, Andreas, Fleming, Ingrid, Keserü, Benjamin, Loot, Annemarieke E., Moneke, Isabelle, Oelze, Matthias, Syzonenko, Tetyana   +6 more
core   +3 more sources

Illuminating the Intracellular World: Breakthroughs in Nanoscale Optoelectronics

Advanced Electronic Materials, EarlyView.
This perspective explores optoelectronic biointerfaces spanning macroscale flexible devices to nanoscale intracellular systems, emphasizing their integration across dimensions. It examines capacitive, Faradaic, and photothermal mechanisms that enable light‐driven control of cellular activity and highlights key material and design challenges in ...
Tania Assaf, Menahem Y. Rotenberg
wiley   +1 more source