It seems likely that overhydration of the skin barrier in the Franz cell setup due to the long contact to the water of the acceptor compartment may have increased permeability in that study and contributed to this divergence.
These magnetic elements are positioned on top of each other but separated by a thin insulating tunnel barrier as shown in the cell structure in Figure 13.
A barrier is introduced in the cell culture, which is removed after the cell growth has reached confluency to provide a cell-free space corresponding to the scratch in the conventional scratch assay.
The roots of many wetland species, including rice, have the ability to prevent ROL to the rhizosphere by forming a barrier in the root peripheral cell layers exterior to the aerenchyma (Figure 2; McDonald et al. 2002; Visser et al. 2000).
We propose that inducible responses giving rise to physical and chemical barriers to infection in the cell walls and intercellular spaces of the barley embryo tissues represent mechanisms by which the CC-NB-LRR-encoding Rdg2a gene mediates resistance to leaf stripe in the absence of hypersensitive cell death.
We therefore propose that inducible secretory immune responses, leading to physical and chemical barriers to infection in the cell walls and intercellular spaces of the barley embryo tissues, represent mechanisms by which the CC-NB-LRR-encoding Rdg2a gene mediates resistance to leaf stripe.
This term effectively creates a diffusion barrier so that positions in the cell where a is high (front), Ds→Dmax, whereas at positions where a is small Ds→0.
However, life spans of animals could be a barrier to study the cell death in vivo.
This provides several possibilities to regulate the semi-permeable nature of the outer membrane, such that β-barrel membrane proteins can define the barrier characteristics of the cell wall in Gram-negative bacteria.
Cell-to-cell transmission overcomes barriers introduced in the donor cell at the level of gene expression and surface retention by the restriction factor tetherin.
