Nano Labs Corp. announced the development of a new nanotechnology to convert eggshells into hydroxyapatite, which is a material employed for endodontics, restorative dentistry and other applications in orthopedics and prosthesis. Bone and teeth are formed of an organic component, collagen, and a mineral phase, hydroxyapatite, which is a ceramic material also known as a bone mineral.

It is found in teeth and bones and makes up to 50% of bone by weight. Hydroxyapatite is the main mineral used in dental enamel and is also commonly used as a filler to replace amputated bone or as a coating to promote bone ingrowth into prosthetic implants. Many modern implants (i.e. dental implants and hip replacements) are coated with hydroxyapatite and it is one of the key materials for developing bone grafts with bioactive nature.

Nano Labs' technology consists of a method that converts eggshells into hydroxyapatite. Hydroxyapatite (HAp) is produced through a hydrothermal conversion with the agro-industry byproduct, eggshells. Commercial grade calcium dibasic phosphate (CaHPO4.2H2O) and lime (CaO) are obtained from direct calcination of the eggshells.