Tap190e g

Manufactured by Budget Sensors

Sourced in Bulgaria

The Tap190E-G is a laboratory equipment product. It is a device used for measuring and analyzing various parameters in a controlled laboratory environment. The core function of the Tap190E-G is to provide accurate and reliable data collection, but no further details on its intended use or application are available.

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Lab products found in correlation

Lensafm, by Nanosurf (1 mentions) Zetapals zeta potential analyzer, by Brookhaven Instruments (1 mentions)

2 protocols using tap190e g

Nanoscale Topography Imaging with AFM

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We move the EFM tip (BudgetSensors, Tap190E-G, k = 48 N/m, cantilever length = 225 μm) on top of the area of interest in non-contact working mode, lift the tip by tens of nanometres, and disable the z-feedback controller to maintain a constant tip-sample distance and then scan the external bias. The scanning bias is in the range of −2 V to 2 V. For 2D TMDC samples, the lift distance is in the range of 32−42 nm. The topography image shown in Fig. 4a was obtained with the AFM by Bruker (NanoWizard ULTRA Speed 2). The rest of the AFM/EFM/LEFM measurements were conducted with the LensAFM by Nanosurf.

Li D., Wang X., Mo X., Tse E.C, & Cui X. (2022). Electronic gap characterization at mesoscopic scale via scanning probe microscopy under ambient conditions. Nature Communications, 13, 4648.

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Superparamagnetic Sphere Characterization

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A double-sided gasket cut from 3M Tape (467MP with 200MP adhesive, Maple, MN) of 0.5 cm inner diameter was affixed to the top surface of a Dove prism (Thorlabs, PS991, Newton, NJ). A 10 μL sample of 8.3 μm superparamagnetic spheres (COMPEL COOH Glacial Blue, UMGB003-UMC4f, Fishers, IN) of density 1.1–1.2 g/mL suspended in deionized (DI) water, resistivity = 18.2 mΩ/cm, was injected into the gasket well and sealed with a coverslip. These particles were chosen for their large size, which minimizes the contribution of Brownian fluctuations on the measured gap width. To determine particle surface roughness, particle suspensions were dried on glass slides, and an atomic force microscopy (AFM) (Asylum Research, Santa Barbara, CA) was used in air tapping mode with a silicon probe with a resonant frequency of 190 kHz and a spring constant of 48 N/m (Tap190E-G, BudgetSensors, Sofia, Bulgaria). Zeta potential was measured with a ZetaPALS zeta potential analyzer (Brookhaven Instruments, Long Island, NY).

Disharoon D., Neeves K.B, & Marr D.W. (2019). ac/dc Magnetic Fields for Enhanced Translation of Colloidal Microwheels. Langmuir : the ACS journal of surfaces and colloids, 35(9), 3455-3460.

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