At equilibrium, the concentration ratio of poly(ethylene gycol) (PEG-4000) in a dialysis sac containing a 35.1% solution of native bovine hemoglobin over that in the external solution is 0.196 ± 0.028 (mean ± SD). This apparent equilibrium distribution constant or ρ-value of 0.196, when ...
Even knowing the precise number of cells in a single organism, we are not able to estimate the volume fraction of a single cell. However, assuming that in the microwave frequency range there is no contribution of biological components other than water we can posit that its properties are a ...
calculated values of the local evaporation rate of water from the bronchial mucosa that can be very close to the maximal ability of the serous cells to replenish this mucosa with water. For mammals with a mass above a certain threshold (≃5kg at rest and≃50g at maximal effort), it app...
The leaf and leafstalk can be transformed into water-resistant material, electrodes in fuel cells, and dehumidification and purification for air conditioners (Pakutsah & Aht-Ong, 2020). Furthermore, the stolon is used to produce carbon nanofibers and biomembranes in life science (Ávila et al....
Inhibition of respiration is accompanied by an increase in reactive oxygen species and a decline in pH of the root cells' cytosol, and the excess protons in turn block the aquaporins in the cell membranes so that the roots become less water permeable (Tournaire-Roux et al., 2003). ...
in the yeast cells. As the lead concentration increased, the efficiency of the modified biosorbent decreased and became lower than the unmodified version. This was due to the toxic effect of lead ions on the yeast cells, resulting in their death and the subsequent blocking of active adsorption ...
also stated that, even if the lower part of the groyne is made water permeable, the effect of guiding the driftwood is retained. Kato et al. [3] examined the driftwood capture project planned in the Omoto River, Iwate Prefecture, Japan, by performing detailed laboratory experiments. This ...
drought stress in Aloe species. They found that the folding of the hydrenchymatic cells is a highly regulated process, in which the function and content of mannans and pectins are particularly key during the seasonal drought and drought recovery. The authors also suggest a role of mannans ...
A chemist's view of the worldis not as narrow as one might think! Yes, we start with the atom, and then go on to the rules governing the kinds of structural units that can be made from them. We are taught early on to predict the properties of bulk matter from these geometric arrang...
Hydrogen, as a clean energy carrier, is of great potential to be an alternative fuel in the future. Proton exchange membrane (PEM) water electrolysis is ha