On-demand guided bone regeneration with microbial protection of ornamented SPU scaffold with bismuth-doped single crystalline hydroxyapatite: augmentation and cartilage formation by Selvakumar, M., Srivastava, P., Pawar, H. S., Francis, N. K., Das, B., Sathishkumar, G., Subramanian, B., Jaganathan, S. K., George, G., Anandhan, S., Dhara, S., Nando, G. B., Chattopadhyay, S.