Abstract
One of the most widely used techniques to obtain anatomical information is magnetic resonance imaging (MRI). Despite its high resolution, it has a low sensitivity which could be enhanced by coupling MRI with a more sensitive technique such as photoacoustic imaging (PAI). The development of a bimodal agent could thus lead to hybrid images with a high anatomical resolution provided by MRI and a precise localization of the contrast agent thanks to PAI. The probes used in this work are a gadolinium(III) complex derived from PCTA‐[12] for MRI and the ZW800–1 fluorophore for PAI. These two organic parts have been attached to a L‐lysine derivative which has a third site for potential conjugation to a biovector, thus opening the field of targeted probes for molecular imaging. Preliminary relaxometric and photoacoustic characterizations indicate that this bimodal agent is a promising compound for bimodal imaging.
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