bio.chem.phy

Hi! Does anyone know a good, controlled method to test the tensile strength of hair? Thanks

ya i have access to light microscopes, but would drawings be reliable enough? i thought about measuring its mass, but that would be assuming the nails will break off in some pH solution. flexibility is neat, but testing it needs to be controlled for all nails i know nails are made of the protein keratin...maybe pH will denaturate it..

yups, the whole piece of fingernail will be coated in polish i just dunno how to compare the results

hi all, im designing an experiment that takes fingernails (cut off from person) and have one set covered in fingernail polish while another set has no polish. Im planning to soak them in different pH solutions and compare to see if polish protects the nails. The only problem is that i dont know how to measure the change (dependent variable) of the fingernails after taken out from the pH. Does anyone know how to measure the change so that the nails can be compared? thx