Primatech: Polyethylene Glycol Printing

Primatech: Polyethylene Glycol Printing

Student(s):

Mike Rathbone
Joe Gonzales
Corey Bradbury

Advisor(s):

Dr. David W. Barnett

Inkjet printing technology can provide the basis for polymer printing techniques which could replace traditional photo lithography for polymer scaffold formation. Using a 10% polyethylene glycol (PEG) solution, a custom user interface within Adobe Illustrator, and a modified Hewlett-Packard inkjet printer, a custom image was applied to a Thermanox plastic cover slip. Droplet sizes as small as 20μm were achieved, however, to form continuous lines, a thicker lane applied via over-printing techniques was utilized. To overcome cohesive forces of the PEG solution that was limiting results, several treatments were examined. Continuous cross-linking of acrylated polyethylene glycol during repeated over-printing cycles yielded continuous lane formation and prevented surface tension from affecting the pattern.