Lignin nanoparticles (LNPs) are nanoscale structures derived from lignin, a complex organic polymer abundant in plant cell walls, particularly in wood and bark. As the second most prevalent biopolymer after cellulose, lignin is commonly obtained as a byproduct of paper and biofuel production.
Lignin nanoparticles offer advanced UV absorption, ideal for use in sunscreens, barrier coatings, and eco-friendly packaging.