Continuing an earlier paper, it is shown here by means of simple examples that the Eyring formalism may be extended to include diffusion-controlled processes if a new frequency factor, D/RΛ , is ...

This model highlights the necessity of diffusion-mediated matrix deposition for complex enamel development and shows how even simple mechanisms have allowed biology to flourish into complexity.

This study reports the passive diffusion (in vitro) of silver nanoparticles (SNPs) and those of the amino acids tryptophan, phenylalanine, tyrosine across a biological membrane model. The experiments ...