photografting of polyacrylamide hydrogel coating in luxembourg

photografting of polyacrylamide hydrogel coating in luxembourg
Tags: , , , , , , , , ,
  • Are photografted microgel arrays suitable for microfluidic applications?
  • During this time, the microgels underwent 100 cycles of thermal contraction/expansion with none of the microgels monitored ( N = 148) delaminating from the substrate. Together, these data confirm that photografted microgel arrays are stable and well suited for use in microfluidic applications.
  • Are fabricated microgel arrays optofluidic?
  • To demonstrate the optofluidic capabilities of fabricated microgel arrays, we loaded samples into a microfluidic test cell comprised of 3D-printed supports, pressure-sealed glass slides, and a molded PDMS microfluidic channel ( Figure 6a ).
  • Do photografted microgel arrays withstand mechanical strain?
  • As a final test of the limits of photografted microgel adhesion, we subjected photografted microgel arrays to mechanical strain by stretching the underlying support substrate (e ≈ 1.3).
  • Does photografting tmpsma increase microgel adhesion?
  • In all tests, we report a significant increase in microgel adhesion when the photografting molecule TMPSMA was used for surface crosslinking (Figures S10 and S11, Supporting Information). We performed a flow test by placing samples in a microfluidic channel (5 × 5 × 2 mm) and flowing water at rate of 10 mL per minute for 60 s.