Carbon Dots for Multiphoton Bioimaging
Journal of the American Chemical Society2007Vol. 129(37), pp. 11318–11319
Citations Over TimeTop 1% of 2007 papers
Li Cao, Xin Wang, Mohammed J. Meziani, Fushen Lu, Haifang Wang, Pengju G. Luo, Yi Lin, Barbara A. Harruff, L. Monica Veca, Davoy Murray, Su‐Yuan Xie, Ya‐Ping Sun
Abstract
Carbon nanoparticles upon simple surface passivation exhibit bright photoluminescence. Reported here is a new finding that these carbon dots are also strongly two-photon luminescent with pulsed laser excitation in the near-infrared. The experimentally measured two-photon absorption cross-sections are comparable to those of the high-performance semiconductor quantum dots already available in the literature. The two-photon luminescence microscopy imaging of human breast cancer cells with internalized carbon dots is demonstrated.
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