CARBON DOTS/PHOTO-DYNAMIC THERAPY

About: 

• Light-based or photo-dynamic therapy is already a clinically-approved treatment, which uses drugs that only work when exposed to light to destroy cancer cells. 
  
  
• However, many of these drugs are frequently toxic even without light, causing many side effects in patients and leading to treatment failure. 
  
  
• Now, researchers in the UK have sought to improve these drugs by using small carbon dots as a way to get the drug to the tumour. 
  
  
• Carbon dots are fluorescent nanoparticles with very little toxicity, making them extremely useful for this application.