text: Yo, check it out, I got some knowledge to drop
  'Bout matrix metalloproteinase-9, it's a hot topic, non-stop
  Overexpression and activation, it's associated with diseases
  But we can flip the script, turn it into something that pleases
  
  We use nanomaterials for sensing and controlled release
  Activate 'em with MMP-9, it's a masterpiece
  Autonomous therapeutics, that's the game we play
  Improving space-time targeting in a brand new way
  
  But hold up, there's more to this than meets the eye
  We gotta consider features, reach for the sky
  Enzyme-cleavable linker in a nanostructure, that's the start
  But we need three components, gotta play it smart
  
  Supramolecular peptide nanostructures, that's our tool
  Tunable kinetics and morphology changes, breaking the rules
  Ordered or disordered structures, we fine-tune the kinetics
  Electrostatic (mis)matching, hydrolysis rates, we make the critics
  
  We got a 12-fold variation, it's a crazy ride
  Matching particle and enzyme charge, we can't hide
  Enzymatic reaction products, we got options galore
  Cell-killing nanofibers or ones that disintegrate, we explore
  
  These guiding principles, they're the keys to our quest
  Just a few amino acid exchanges, we're the best
  Customize enzyme-responsive peptide nanostructures, that's the goal
  Optimizing performance, we're taking control
  
  So listen up, we're on the cutting edge, no debate
  Enzyme-responsive materials, we elevate
  With these principles, we pave the way
  For a future where science and innovation hold sway