Molecular Imaging of Cancer Cells Using a Bacteriophage‐Based ¹²⁹Xe NMR Biosensor

Abstract

NMR imaging: Filamentous fd bacteriophage expressing antibodies recognizing the epidermal growth factor receptor (EGFR) were modified to incorporate cage-like xenon-binding molecules (CryA). The resulting contrast agent was shown to bind to an EGFR-positive cell line and detected by hyperpolarized 129Xe NMR spectroscopy using chemical exchange saturation transfer (hyperCEST, see picture).