Stabilization of zirconia nanoparticles by collagen protein and calcium carbonate extracted from eggshell and its biodegradation, radical scavenging and mineralization activity oleh Summeya Akram, Mahwish Bashir, Farzana Majid, Maida Ayub, Babar Shahzad Khan, Adnan Saeed, Mohammed Rafi Shaik, Mujeeb Khan, Baji Shaik