Highly Luminescent–Paramagnetic Nanophosphor Probes for In Vitro High-Contrast Imaging of Human Breast Cancer Cells (pages 3028–3034)
Bipin Kumar Gupta, Tharangattu N. Narayanan, Sajna Antony Vithayathil, Yean Lee, Shyny Koshy, Arava Leela Mohana Reddy, Avishek Saha, V. Shanker, V. N. Singh, Benny Abraham Kaipparettu, Angel A. Martí and Pulickel M. Ajayan
Article first published online: 17 JUL 2012 | DOI: 10.1002/smll.201200909
A highly luminescent Y1.9O3:Eu0.13+ nanophosphor is synthesized using a modified sol–gel method. The nanophosphor produces both paramagnetic behavior and a highly efficient red emission peaking at 610 nm. Photoluminescence, time-resolvedspectroscopy, magnetization, cytotoxicity, and in vitro bioimaging studies in human breast cancer cells reveal that the nanophosphor could be applied to high-contrast bioimaging.