Cover Image, Volume 143, Issue 21

Key Points

• The research aims to develop a microfluidic gradient generator for improving particle functionalization methods.
• Utilized a microfluidic system to create gradients of fluids.
• Applied two-photon direct laser writing for post-modification.
• Enabled dynamic adjustments for particle functionalization.
• Demonstrated effective gradient generation for nanoparticles.
• Showed enhanced control over particle surface properties.
• Validated the approach through experimental comparisons.