期刊
OPTICS LETTERS
卷 37, 期 5, 页码 872-874出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.37.000872
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资金
- National Institutes of Health [R00 CA142888]
- National Science Foundation [EECS-1055852]
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1055852] Funding Source: National Science Foundation
We demonstrate polyethylene-glycol-coated single-walled carbon nanotubes (CNTs) as contrast agents for both photothermal optical coherence tomography (OCT) and magnetic-resonance imaging (MRI). Photothermal OCT was accomplished with a spectral domain OCT system with an amplitude-modulated 750 nm pump beam using 10 mW of power, and T-2 MRI was achieved with a 4.7 T animal system. Photothermal OCT and T-2 MRI achieved sensitivities of nanomolar concentrations to CNTs dispersed in amine-terminated polyethylene glycol, thus establishing the potential for dual-modality molecular imaging with CNTs. (C) 2012 Optical Society of America
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