Abstract
Surface plasmons — light-induced oscillations of electrons at the surface of nanoplasmonic metallic nanoparticles or nanostructures — can be used in a wide range of applications. Such nanoplasmonic optical antennas can be interfaced with biological systems to answer diverse questions in life sciences and to solve problems in translational medicine. In particular, nanoplasmonics provide insight and solutions for intracellular exploration, gene delivery and regulation, and rapid precision molecular diagnostics. In this Review, we examine the development of nanoplasmonic optical antennas for in vitro and in vivo applications. We evaluate the use of optical nanoplasmonic antennas for the optical detection of mRNA in living cells and for in vivo molecular imaging. We also discuss nanoplasmonic optical antennas for in vivo gene delivery and the optical control of gene circuits. Finally, we highlight the use of nanoplasmonic-based molecular diagnostic systems for ultrafast precision medicine. Nanoplasmonics have emerged as a promising technology for applications in life sciences and medicine. In this Review, we discuss the application of nanoplasmonic optical antennas for in vivo intracellular exploration, photonic gene delivery and regulation, and in vitro molecular diagnostics.
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