Electrostatic fiber spinning or electrospinning is widely used for fabricating nanofiber scaffolds of polymers mimicking ecm in tissue engineering applications. a. explain the principle of electrospinning for producing fine nanodiameter fibers. how do various process and polymer solution parameters affect the fiber-size or diameter? b. what are the difficulties and concerns in nanospinning collagen proteins by electrospinning? c. explain the micro-structural changes in poly(lactide-co-caprolactone), plcl, due to electrospinning (answer with the of a search in literature and differential scanning calorimetry (dsc) and xrd).