5 Dokumente gefunden

Imaging-based quantification of sub-25 nm coking layer on Au by dielectric-loaded plasmonic azimuthally chirped gratings

Noble metals are commonly used in heterogeneous catalysis due to their active catalytic sites. However, carbon layer deposition, or coking, can block these sites and reduce performance, even at thicknesses below 25 nm. Rapid monitoring of ultrathin coking layers is therefore essential for timely surface…
London: Nature Publishing Group UK, 2025-10-28

Polarity dependent predictable and random resistive switching in forming-free unipolar memristors

Polycrystalline, hexagonal HoMnO3 thin films sandwiched between an un-patterned Pt/Ti bottom electrode and a circularly patterned Al top electrode reveal forming-free, polarity dependent predictable and random, unipolar resistive switching with stable retention, and a resistance ratio between high resistance…
New York, NY: AIP Publishing, 2025-01-13

Monitoring the Dilution of Buffer Solutions with Different pH Values above and below Physiological pH in Very Small Volumes

aus: Sensors
The accurate determination of the post-dilution concentration of biological buffers is essential for retaining the necessary properties and effectiveness of the buffer to maintain stable cellular environments and optimal conditions for biochemical reactions. In this work, we introduce a silicon-based…
Basel: MDPI, 2024-09-04

Magnetotransport of fluxoids in intermediate-phase type-II superconducting NbN thin films around Tc

The mixed state transport properties of type-II superconductors are strongly influenced by the dynamic behavior of quantized magnetic fluxoids around the critical temperature (Tc), where a combination of normal and superconducting properties is exhibited. To understand the mixed state transport properties…

Detecting Bacterial Cell Viability in Few µL Solutions from Impedance Measurements on Silicon-Based Biochips

Using two different types of impedance biochips (PS5 and BS5) with ring top electrodes, a distinct change of measured impedance has been detected after adding 1–5 µL (with dead or live Gram-positive Lysinibacillus sphaericus JG-A12 cells to 20 µL DI water inside the ring top electrode. We relate observed…
Basel: Molecular Diversity Preservation International, 2021-03-29