1995 Toyota Starlet nano ceramic treatment

Nano Ceramic engine oil treatment is a populer topic nowadays. Could you please let me know how can I use it for my car.I would like to know specifications, dosage, cost of the above thing. There is small amount of sluge formation can be seen in my engine. Should I remove them prior to ceramic treatment. Is this ceramic treatment can make nano lining over the rubber parts like oil seals. How long this nano lining will stay inside my engine parts after one treatment session. Will this nano ceramic treatment cause bad side effects after some time.