Suppose you are developing a hydrogel to be used as wound dressing for diabetic ulcers using poly(ethylene glycol) diacrylate. The first formulation you test has a compressive storage modulus, E, of 1 kPa but swells extensively and has a mass swelling ratio of 40.

a. How would you modify your hydrogel to reduce the mass swelling ratio to 30?

b. How would your modification affect the storage modulus?