text: Optical sensors, yo, they're on the rise,
  Fluorescence methods, they don't tell no lies,
  From healthcare to the environment, they're everywhere,
  Detecting DNA, they got it all in their lair.
  
  But check it, the competition's fierce, they're going strong,
  Portable and sensitive, they can't go wrong,
  Nanomaterial-based sensors, that's the new trend,
  We're talking silicon nanonets, my friend.
  
  Silicon nanowires in a network formation,
  Biosensors for DNA, it's a dope sensation,
  Using fluorescence microscopy, we prove our might,
  SiNWs got the surface and aspect ratio, just right.
  
  Enhanced sensitivity, better selectivity,
  Compared to plain substrates, we got the connectivity,
  Fluorescence signal, it's off the charts,
  SiNW density on the nanonet, it's where it starts.
  
  Denser nanonets, the limit's 1 nM,
  Detecting DNA hybridization, we're the gem,
  Complementary DNA, we shine so bright,
  1 base mismatch, we still got that sight.
  
  High selectivity, over 50% change,
  Fluorescence intensity, we rearrange,
  Si nanonet-based sensors, they're the real deal,
  On a large scale area, we make it all real.
  
  Integrated into a DNA chip, we're on a roll,
  Selective sensors, reproducing, taking control,
  So remember our name, Si nanonet-based crew,
  We're revolutionizing sensors, that's what we do!