Results 61 to 70 of about 1,266,199 (347)

Quantum Effects in Ion Transport: A Thermodynamic Resource Theory Approach [PDF]

open access: yesBioSystems 249 (2025) 105412
In recent years, understanding thermodynamics in the quantum regime has garnered significant attention, driven by advances in nanoscale physics and experimental techniques. In parallel, growing evidence supports the importance of quantum effects in various biological processes, making them increasingly relevant to quantum thermodynamics. In this study,
arxiv   +1 more source

Impact of main ion pressure anisotropy on stellarator impurity transport [PDF]

open access: yesNucl. Fusion 60, 016035 (2020), 2019
Main ions influence impurity dynamics through a variety of mechanisms; in particular, via impurity-ion collisions. To lowest order in an expansion in the main ion mass over the impurity mass, the impurity-ion collision operator only depends on the component of the main ion distribution that is odd in the parallel velocity. These lowest order terms give
arxiv   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

Penentuan Kondisi Optimasi Transpor Ion Cu (Ii) Melalui Teknik Membran Cair Fasa Ruah Secara Simultan Dengan Oksin Sebagai Pembawa

open access: yesJurnal Riset Kimia, 2015
Determination of optimum condition and kinetic analysis Cu (II) iontransport by simultaneous bulk liquid membrane has been studied. Optimum condition for resource phase with Cu (II) ion concentration as 3,147 x 10-4 M obtained at pH 3 receiving phase ...
Refinel -, Admin Alif, Rizki Octarini
doaj   +1 more source

Effects of Surface Trapping and Contact Ion Pairing on Ion Transport in Nanopores [PDF]

open access: yesJ. Phys. Chem. C 2019,123,24,15314-15322, 2019
Ion transport in highly-confined space is important to various applications, such as biosensing and seawater desalination with nanopores. All-atom molecular dynamics simulations are conducted to investigate the transport of Na$^+$ and Cl$^-$ ions through nanopores with the diameter below 6 nm.
arxiv   +1 more source

Controlling fast transport of cold trapped ions

open access: yes, 2012
We realize fast transport of ions in a segmented micro-structured Paul trap. The ion is shuttled over a distance of more than 10^4 times its groundstate wavefunction size during only 5 motional cycles of the trap (280 micro meter in 3.6 micro seconds ...
A. Steane   +12 more
core   +1 more source

Ion Transporters in Brain Tumors [PDF]

open access: yesCurrent Medicinal Chemistry, 2015
Ion transporters are important in regulation of ionic homeostasis, cell volume, and cellular signal transduction under physiological conditions. They have recently emerged as important players in cancer progression. In this review, we discussed two important ion transporter proteins, sodium-potassium-chloride cotransporter isoform 1 (NKCC-1) and sodium-
Shaoshan Hu   +5 more
openaire   +3 more sources

Ion channel function of polycystin‐2/polycystin‐1 heteromer revealed by structure‐guided mutagenesis

open access: yesFEBS Letters, EarlyView.
Mutations in polycystin‐1 (PC1) or polycystin‐2 (PC2) cause autosomal‐dominant polycystic kidney disease (ADPKD). We generated a novel gain‐of‐function PC2/PC1 heteromeric ion channel by mutating pore‐blocking residues. Moreover, we demonstrated that PC2 will preferentially assemble with PC1 to form heteromeric complexes when PC1 is co‐expressed ...
Tobias Staudner   +7 more
wiley   +1 more source

Fundamental investigations on the ionic transport and thermodynamic properties of non-aqueous potassium-ion electrolytes

open access: yesNature Communications, 2023
Non-aqueous potassium-ion batteries (KIBs) represent a promising complementary technology to lithium-ion batteries due to the availability and low cost of potassium.
Shobhan Dhir   +3 more
doaj   +1 more source

IRBIT: A regulator of ion channels and ion transporters

open access: yesBiochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2014
IRBIT (also called AHCYL1) was originally identified as a binding protein of the intracellular Ca(2+) channel inositol 1,4,5-trisphosphate (IP3) receptor and functions as an inhibitory regulator of this receptor. Unexpectedly, many functions have subsequently been identified for IRBIT including the activation of multiple ion channels and ion ...
Hideaki Ando   +2 more
openaire   +3 more sources

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