The experiments discussed thus far focus on regularly shaped substrates immersed together in one water bath. As a variation of the experiment, we designed a version for a case in which the samples have to be submerged in individual vials, where said vials are placed in the water bath to regulate their temperature. This is standard practice if the medium is a liquid other than water (e.g. simulated body fluid) or it is necessary to avoid cross-contamination between specimens.