Validation of Texture Changing Coatings for Use in At-Home Rapid Tests

Participants will drop a saline solution with proteins onto the testing device. They will wait for it to dry and then report on the tactile sensation and overall feel of the surface. Feedback will include comparisons with the two reference surfaces. The primary goal is to determine the presence of mock COVID antigen in synthetic saliva using the device, which aligns with the goals of diagnostic testing.

Participants may have biomechanical measurements recorded, such as placing samples on a scale to measure downward force or using medical tape with a flexible wire to track finger motion. These measurements are likely aimed at objectively assessing how participants interact with the surfaces and their physical responses to tactile stimuli.

Participants may alternatively be asked to perform standardized psychophysical tasks, such as Two Alternative Forced Choice tests, Odd-Man Out tests, or Magnitude Estimation tests. These tasks will provide structured comparisons and quantitative data on participants' perception and preferences regarding tactile qualities. The tasks are designed to evaluate participants' perception and preferences regarding tactile qualities, which involves behavioral responses to sensory stimuli.