text: Yo, listen up, I got a story to tell,
  'Bout these dope macromolecules, PAMAM, they swell.
  Poly(amidoamine) dendrimers, highly branched and tight,
  With amine groups on the surface, shining bright.
  
  These nanoscale wonders, they got a special skill,
  Boostin' solubility of drugs that don't chill.
  Reactive groups on the surface, they're versatile,
  Engineered for targeting, they go the extra mile.
  
  But hold up, in the body, things get real,
  Them amine groups turn toxic, it's a big deal.
  To overcome this obstacle, a solution is found,
  Polyethylene glycol (PEG) comes around.
  
  PEGylation's the name, it's the game-changer,
  Reducing toxicity, nothin' could be stranger.
  PEG molecules, they're inert and cool,
  Non-immunogenic, non-antigenic, breakin' all the rules.
  
  Water-soluble and safe, that's what they bring,
  PAMAM with PEGylation, a powerful thing.
  No more drug leakage, no more toxicity,
  Immunogenicity? Nah, that's history.
  
  Delivery's the aim, makin' strides in the field,
  Hydrophobic drugs, solubilized and revealed.
  DNA transfection, siRNA delivery too,
  Tumor targeting, PAMAM's got the crew.
  
  So let's wrap it up, this review's complete,
  PEGylation's impact, it can't be beat.
  Biopharmaceutical properties, they're on fire,
  PAMAM dendrimers with PEGylation, takin' it higher.