A theory based on how particles move in response to concentration differences explains the exclusion zone phenomenon better than the idea of a new water phase, matching what scientists have observed in experiments.
Scientific Claim
Schurr's diffusiophoresis theory provides a compelling explanation for EZ phenomena, including the time course of EZ growth, pH gradients near Nafion surfaces, and measured repulsive force fields, which align with experimental observations.
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
probability
Can suggest probability/likelihood
Assessment Explanation
The study is a review of existing evidence, not a new experimental study. While it presents Schurr's theory as compelling, it does not prove it definitively. 'Provides a compelling explanation' is appropriate for a review that synthesizes evidence.
Source Excerpt
“Schurr’s theory of macroscopic chemotaxis presents a compelling alternative theory which can explain experimental findings which Pollack’s theory cannot, such as the precise time course of EZ growth, pH gradients emanating from the surface of Nafion, and the decaying forcefield measured by experiments with optical tweezers.”
Evidence from Studies
Supporting Evidence (1)
The study explicitly states that Schurr's diffusiophoresis theory explains multiple experimental observations that Pollack's theory cannot, including time course of EZ growth, pH gradients, and forcefield measurements. This is presented as a key finding of the review.