Klapperich Lab:Photopolymerization of PHEMA

Overview

This protocol outlines the photopolymerization of PHEMA.

Materials

• 900 uL HEMA or modified monomer
• 600 uL Ethylene glycol
• 25 uL EGDMA (ethylene glycol dimethacrylate), crosslinker
• 20 mg DMPAP, photoinitiator

Procedure

1. Turn on digital dry bath. Add water to wells you will use. Set temperature to 85°C.
2. Add DMPAP to 2 mL centrifuge tube.
3. Add HEMA to tube. Be careful to avoid air bubbles when pipetting.
4. Add ethylene glycol to tube.
5. Add EGMDA to tube.
6. Heat mixture in digital bath until crystals are melted. Vortex.
7. Add contents of tube to one well of a 6 well plate. Expose to UV light for 2.5 minutes.

Notes

1. Be careful not to overheat DMPAP. (Jessica Kaufman)
2. Let gel sit in fume hood for at least 4 hours before hydrating with Millipore water.(Jessica Kaufman)
3. This recipe in this mold yields a swollen gel that is approximately 1 mm thick.(Jessica Kaufman)

References

Error fetching PMID 15755154
Error fetching PMID 12553825

Contact

• Jessica Kaufman
• Nathan Spencer
• Eben Tessari