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Terahertz (THz) biological imaging has attracted intense attention due to its capability of acquiring physicochemical information in a label‐free, noninvasive, and nonionizing manner. However, extending THz imaging to the single‐molecule level remains a challenge, partly due to the weak THz reflectivity of biomolecules with low dielectric constants. Here, the development of graphene‐mediated THz scattering‐type...
In article number 2005814, Jiang Li, Huabin Wang, and co‐workers demonstrate the imaging of single protein molecules with a scattering‐type terahertz (THz) scanning near‐field optical microscope, taking advantage of a graphene substrate with high THz reflectivity and atomic smoothness, and a long platinum probe with high scattering ability. This strategy opens new routes to imaging single biomolecules...
Objectives
Terahertz (THz)‐based imaging techniques hold great potential for biological and biomedical applications, which nevertheless are hampered by the low spatial resolution of conventional THz imaging systems. In this work, we report a high‐performance photoconductive antenna microprobe‐based near‐field THz time‐domain spectroscopy scanning microscope.
Materials and methods
A single watermelon...
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