[1] ASTAR, Inst Med Biol, Singapore, Singapore
[2] Univ Queensland, Australian Inst Bioengn & Nanotechnol, St Lucia, Qld, Australia
[3] Nanyang Technol Univ, Imperial Coll London, Lee Kong Chian Sch Med, Singapore 639798, Singapore
[4] Univ Queensland, Sch Chem Engn, St Lucia, Qld, Australia
[5] CSIRO, Mfg Flagship, Biomed Mfg, Clayton, Vic 3168, Australia
[6] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Orthopaed Surg, Singapore 117595, Singapore