Buckling tip-based nanoscratching with in situ direct measurement of shear dynamics

An, Sangmin; Kim, Chungman; Jhe, Wonho

doi:10.1007/s13204-018-0897-3

Cited by 2 publications

(1 citation statement)

References 29 publications

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“…On the other hand, the underlying substrate was prepared using the same coating method on cover glass (No. 23 550 32, DURAN GROUP), which was then scratched by a buckled pipet to fabricate the metallic gap [ 27 ]. By controlling the buckled depth, we could make a ~2 µm gap that is very similar to the pipet diameter.…”

Section: Methodsmentioning

confidence: 99%

Sorting Gold and Sand (Silica) Using Atomic Force Microscope-Based Dielectrophoresis

et al. 2021

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Additive manufacturing–also known as 3D printing–has attracted much attention in recent years as a powerful method for the simple and versatile fabrication of complicated three-dimensional structures. However, the current technology still exhibits a limitation in realizing the selective deposition and sorting of various materials contained in the same reservoir, which can contribute significantly to additive printing or manufacturing by enabling simultaneous sorting and deposition of different substances through a single nozzle. Here, we propose a dielectrophoresis (DEP)-based material-selective deposition and sorting technique using a pipette-based quartz tuning fork (QTF)-atomic force microscope (AFM) platform DEPQA and demonstrate multi-material sorting through a single nozzle in ambient conditions. We used Au and silica nanoparticles for sorting and obtained 95% accuracy for spatial separation, which confirmed the surface-enhanced Raman spectroscopy (SERS). To validate the scheme, we also performed a simulation for the system and found qualitative agreement with the experimental results. The method that combines DEP, pipette-based AFM, and SERS may widely expand the unique capabilities of 3D printing and nano-micro patterning for multi-material patterning, materials sorting, and diverse advanced applications. "Image missing"

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Section: Methodsmentioning

confidence: 99%