Results 121 to 130 of about 5,404,646 (375)

Extraction and low energy transport of negative ions [PDF]

open access: yes, 2005
High perveance negative ion beams with low emittance are essential for several next generation particle accelerators (i. g. spallation sources like ESS [1] and SNS [2]).
Jakob, Ansgar   +3 more
core  

Reliable transport through a microfabricated X-junction surface-electrode ion trap

open access: yesNew Journal of Physics, 2013
We report the design, fabrication and characterization of a microfabricated surface-electrode ion trap that supports controlled transport through the two-dimensional intersection of linear trapping zones arranged in a 90° cross.
Kenneth Wright   +11 more
doaj   +1 more source

Nanofluidic Ion Transport and Energy Conversion through Ultrathin Free-Standing Polymeric Carbon Nitride Membranes.

open access: yesAngewandte Chemie, 2018
Ions transport through confined space with characteristic dimensions comparable to the Debye length has many applications, for example, in water desalination, dialysis, and energy conversion.
Kai Xiao   +4 more
semanticscholar   +1 more source

An ion channel in the company of a transporter

open access: yesJournal of General Physiology, 2020
In the current issue of JGP, Lamothe and Kurata explore the functional relationship between the Kv1.2 potassium channel, with Kvβ1.2 bound to the interior aspect of the channel, and Slc7a5, a component of the neutral amino acid transporter LAT1.
openaire   +3 more sources

Ion transport in stellarators [PDF]

open access: yes, 1985
Stellarator ion transport in the low-collisionality regime with a radial electric field is calculated by a systematic expansion of the drift-Boltzmann equation. The shape of the helical well is taken into account in this calculation. It is found that the barely trapped ions with three to four times the thermal energy give the dominant contribution to ...
Ho, D.D.M., Kulsrud, R.M.
openaire   +3 more sources

A nucleotide‐independent, pan‐RAS‐targeted DARPin elicits anti‐tumor activity in a multimodal manner

open access: yesMolecular Oncology, EarlyView.
We report a Designed Ankyrin Repeat Protein that binds and inhibits RAS proteins, which serve as central cell signaling hubs and are essential for the progression of many cancers. Its unique feature is that it does not discriminate between different RAS isoforms or mutations and is capable of binding to RAS in both its active (GTP‐bound) and inactive ...
Jonas N. Kapp   +13 more
wiley   +1 more source

Ion-tracer anemometer [PDF]

open access: yes, 1973
Gas velocity measuring instrument measures transport time of ion-trace traveling fixed distance between ionization probe and detector probe. Electric field superimposes drift velocity onto flow velocity so travel times can be reduced to minimize ion ...
Bass, R. L.   +3 more
core   +1 more source

Visualizing percolation and ion transport in hybrid solid electrolytes for Li–metal batteries

open access: yesJournal of Materials Chemistry A, 2019
Hybrid solid state electrolyte structure was imaged using synchrotron nanotomography. Accessible surface area of ceramic particles in the electrolytes governs ion transport.

semanticscholar   +1 more source

Bioengineering facets of the tumor microenvironment in 3D tumor models: insights into cellular, biophysical and biochemical interactions

open access: yesFEBS Open Bio, EarlyView.
The tumor microenvironment is a dynamic, multifaceted complex system of interdependent cellular, biochemical, and biophysical components. Three‐dimensional in vitro models of the tumor microenvironment enable a better understanding of these interactions and their impact on cancer progression and therapeutic resistance.
Salma T. Rafik   +3 more
wiley   +1 more source

Naphthalene Diimide‐Based Metallacage as an Artificial Ion Channel for Chloride Ion Transport

open access: yesAdvanced Science
Developing synthetic molecular devices for controlling ion transmembrane transport is a promising research field in supramolecular chemistry. These artificial ion channels provide models to study ion channel diseases and have huge potential for ...
Qing‐Hui Ling   +11 more
doaj   +1 more source

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