Inverted Scanning Microwave Microscope for In Vitro Imaging and Characterization of Biological Cells

13 Mar 2019  ·  Farina Marco, Jin Xin, Fabi Gianluca, Pavoni Eleonora, di Donato Andrea, Mencarelli Davide, Morini Antonio, Piacenza Francesco, Hadi Richard Al, Zhao Yan, Pietrangelo Tiziana, Cheng Xuanhong, Hwang James C. M. ·

This paper presents for the first time an innovative instrument called an inverted scanning microwave microscope (iSMM), which is capable of noninvasive and label-free imaging and characterization of intracellular structures of a live cell on the nanometer scale. In particular, the iSMM is sensitive to not only surface structures, but also ectromagnetic properties up to one micrometer below the surface... Conveniently, the iSMM can be constructed through straightforward conversion of any scanning probe microscope, such as the atomic force microscope or the scanning tunneling microscope, with a simple metal probe to outperform traditional SMM in terms of ruggedness, and width, sensitivity and dynamic range. By contrast, the application of the traditional SMM to date has been limited to mainly surface physics and semiconductor technology, because the traditional SMM requires a fragile and expensive probe and is incompatible with saline solution or live biological cells. read more

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Instrumentation and Detectors