A.  Tirella, La Marca, M., Brace, L. A., Mattei, G., Aylott, J., and Ahluwalia, A., ?Nano-in-Micro Self-Reporting Hydrogel Constructs?, Journal of Biomedical Nanotechnology, vol. 11, pp. 1451?1460, 2015 [Online]. Available: http://openurl.ingenta.com/content/xref?genre=article&issn=1550-7033&volume=11&issue=8&spage=1451