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Core-shell niobium(v) oxide@molecularly imprinted polythiophene nanoreceptors for transformative, real-time creatinine analysis.
Nanoscale Adv
July 2024
Sensors and Diagnostics Lab, School of Chemistry, University of the Punjab, Quaid-i-Azam Campus Lahore 54590 Pakistan
Creatinine, a byproduct of muscle metabolism, is typically filtered by the kidneys. Deviations from normal concentrations of creatinine in human saliva serve as a crucial biomarker for renal diseases. Monitoring these levels becomes particularly essential for individuals undergoing dialysis and those with kidney conditions.
View Article and Find Full Text PDFEnhancing Thickness Uniformity of NbO/SiO Multilayers Using Shadow Masks for Flexible Color-Filtering Applications.
Micromachines (Basel)
April 2024
Department of Electrical Engineering, National Taiwan Ocean University, No. 2, Peining Rd., Keelung 20224, Taiwan.
Using a stainless shadow mask combined with a magnetron-ion-assisted deposition (IAD) sputtering system, we investigate the surface morphologies and optical properties of microfilms. Optimal color-filter (CF) coating microfilms with niobium pent-oxide (NbO)/silicon dioxide (SiO) multilayers on a hard polycarbonate (HPC) substrate, grown at 85 °C and 50 SCCM oxygen flow, can obtain a fairly uniform thickness (with an average roughness of 0.083 and 0.
View Article and Find Full Text PDFIntegrated lithium niobate microwave photonic processing engine.
Nature
March 2024
Department of Electrical Engineering & State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, China.
Integrated microwave photonics (MWP) is an intriguing technology for the generation, transmission and manipulation of microwave signals in chip-scale optical systems. In particular, ultrafast processing of analogue signals in the optical domain with high fidelity and low latency could enable a variety of applications such as MWP filters, microwave signal processing and image recognition. An ideal integrated MWP processing platform should have both an efficient and high-speed electro-optic modulation block to faithfully perform microwave-optic conversion at low power and also a low-loss functional photonic network to implement various signal-processing tasks.
View Article and Find Full Text PDFHydrometallurgical assessment of oxides of Nb, Ta, Th and U from Ethiopian tantalite ore.
Heliyon
January 2024
School of Materials Science and Engineering, Jimma Institute of Technology, Jimma University, PO Box 378, Jimma, Ethiopia.
Tantalite ore is the main source of the metals niobium (Nb) and tantalum (Ta). Today, the needs for these economic and irreplaceable Nb, and Ta metals are becoming imperative for the technological world, to meet the demand, a lot of research is needed to ore reserves, extraction methodology and simplified refining processes should be in plethora. This study focuses on the Ethiopian tantalite ore located south of the Neoproterozoic Adola belt of the rare element Kenticha pegmatite deposit (global source of tantalite).
View Article and Find Full Text PDFVacuum cleaving of superconducting niobium tips to optimize noise filtering and with adjustable gap size for scanning tunneling microscopy.
MethodsX
December 2023
Department of Physics, University of Zurich, Winterthurerstrasse 190, Zurich CH-8057, Switzerland.
Article Synopsis
- Superconducting tips for scanning tunneling microscopy (STM) improve surface science studies by providing excellent energy resolution and allowing exploration of Josephson tunneling.
- These tips can be made from less ordered materials, like SC polycrystalline wires, making them easier to produce than traditional options.
- The paper discusses a simplified method for preparing superconducting tips from Nb wire and demonstrates their use in measuring the SC gap on Au(111) to enhance the performance of low-temperature microscopy setups.
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