π Topic 03 of 6 Β· Chapter 08 Β· Nanotechnology & Material Science
Nanomedicine β Drug Delivery & Cancer Treatment
Targeted drug delivery, nanoparticles, liposomes, nano-diagnostics β complete notes for UPSC & PSC exams.
π Nanomedicine Applications
- Targeted Drug Delivery β nanoparticles carry drugs directly to diseased cells (cancer cells); reduces side effects on healthy cells
- Liposomes β nano-sized lipid vesicles; encapsulate drugs; liposomal doxorubicin (Doxil) for cancer
- Nano-diagnostics β gold nanoparticles for rapid disease detection; COVID-19 rapid tests
- Nano-vaccines β nanoparticles as vaccine carriers; mRNA vaccines use lipid nanoparticles
- Nano-surgery β nanobots for targeted surgery (future)
- Medical Imaging β quantum dots for fluorescent imaging; better than conventional dyes
π Liposomes β Drug Delivery
- Spherical structures made of lipid bilayers (like cell membranes)
- Encapsulate drugs; protect from degradation; improve drug solubility
- Can be engineered to target specific cells (cancer cells)
- Liposomal doxorubicin (Doxil) β approved cancer drug; reduces cardiotoxicity
- mRNA vaccines (Pfizer, Moderna) use lipid nanoparticles to deliver mRNA
β Key Facts:
β’ Nanomedicine = targeted drug delivery = nanoparticles for cancer
β’ Liposomes = lipid vesicles = encapsulate drugs = Doxil (cancer drug)
β’ mRNA vaccines (Pfizer, Moderna) use lipid nanoparticles
β’ Gold nanoparticles = rapid disease detection = COVID-19 tests
β’ Quantum dots = fluorescent imaging = better than conventional dyes
β’ Nanomedicine = targeted drug delivery = nanoparticles for cancer
β’ Liposomes = lipid vesicles = encapsulate drugs = Doxil (cancer drug)
β’ mRNA vaccines (Pfizer, Moderna) use lipid nanoparticles
β’ Gold nanoparticles = rapid disease detection = COVID-19 tests
β’ Quantum dots = fluorescent imaging = better than conventional dyes