SUBSTANCE P, an 11 amino acid peptide found in many areas of the nervous system, has been proposed to be the excitatory transmitter between primary afferen... STEINACKER,A. - 《Nature》 被引量: 71发表: 1977年 Influence of Ionic Excitation in Heavy-Ion Charge-Changing Cross Sections The inf...
The repulsive Coulomb interaction is overcome by cooperative hydrogen bonding between ions of like charge. The transition energy from purely cation-anion interacting configurations to those including cation-cation H-bonds is determined to be 3–4 kJmol−1. The experimental findings and DFT ...
Dynamic light scattering indicates that MPS-PPV chains exist in a highly agglomerated conformation in both solvents, and that the size of the agglomerates depends on both the ionic strength and the charge of the counter-ion. Even though the degree of agglomeration is similar in the two solvents...
A new microscopic expression for the ionic contribution to the viscosity of an electrolyte solution has been derived which expresses it in terms of the static and dynamic structure factors of the charge and the number densities of the electrolyte solution. This ionic contribution becomes the excess ...
be liquid at room temperature across the composition range from 1:2 to 2:1 mol ratio (Fig.1). These cations went on to become by far the most popular for making ionic liquids. However, their introduction also led to a controversy over the role of hydrogen bonding in the structures of ...
These two factors result in high cell capacity under different charge/discharge rates. Further, excellent cell-cycle stability after being charged and discharged 100 cycles is also demonstrated with the columbic efficiency to be up to 99. Due to the existence of the oligomeric ionic liquid, this ...
On the basis of a general argument that an electrically neutral species acquires a nonzero potential upon solvation, the changes in the cited thermodynamic functions are shown to be capable of taking on positive values for a range of values of the charge parameter. This behavior is in direct ...
unlike those of electronic carriers, are stochastic and lack clear spectral resonance signatures, single-pulse reciprocal-space or Fourier-transform probes are insufficient for probing them. Instead, correlations in nanoscale transport7,8,9,10could be probed using time-domain nonlinear optical pump–pro...
where I (or μ) is theionic strength, c is themolar concentrationof the ion and z its charge. Theionic strengthmust be controlled in studies of the reactions ofmetal complexes. For a 1:1 electrolyte such as 0.1 M NaClO4the ionic strength is equal to themolarityof the electrolyte. For ...
We have found that the behaviors of such devices are closely related to the surface charge densities around SWNTs in aqueous solutions. Adsorption of ionic surfactants on the surface could significantly modulate the device characteristics, which could be detected by measuring the conductance of the ...