Abstract
This paper describes a fabrication method of patterning stimuli-responsive hydrogel microfibers. Stimuli-responsive hydrogel microfibers are consist of sodium alginate and poly(N- isopropylacrylamide-co-acrylic acid) Micro fibers are fabricated with a micro fluidic nozzle. We examined the relationship between a diameter of fibers and a flow rate of sodium alginate and poly(N- isopropylacrylamide-co-acrylic acid). We confirmed the flow rate was proportional to the microfiber diameter. We also investigated the shrinking ratio of a microfiber to stimulus and confirmed a temperature responsive of the microfiber. We finally injected a fiber into carboxymethyl cellulose and printed a straight line by controlling automatic stages. Our proposed method could be applied to 3D printing of functional materials.
