Lignin is natural nanoparticles

Yes, Our mother nature is full of nanoparticles . virus, very fine dust, ocean spray etc.are naturally occurring nanoparticles.

Cellulose..

Thanks to dipen, sayantan and sridhar ...but any one provide any link in which synthesis and application o that nanoparticles are discribed????

Ok,Anand ,You can find it below for lignin:

Fabrication of environmentally biodegradable lignin nanoparticles.

Frangville C, Rutkevičius M, Richter AP, Velev OD, Stoyanov SD, Paunov VN.

Source

Surfactant and Colloid Group, Department of Chemistry, University of Hull, Hull, HU67RX, UK.

Very interesting discussion