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Category: Nanotech
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Enhanced urease inhibitory activity of quercetin via conjugation with silver nanoparticles: synthesis, characterization, and DFT study
The main objective of this project is to enhance the inhibitory activity of quercetin on the urease enzyme through the synthesis of Ag@QNPs. Therefore, Ag@QNPs have been synthesized using the Frens method as a reduction reaction. To study and…
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Assessing particle count in electron microscopy measurements of nanomaterials to support regulatory guidance
Particle size and shape
Table 2 summarizes the median values (D50) and IQR% of the PSDs for the different size and shape measurands obtained from TEM measurements, considering the largest dataset. The median Fmin values, and in selected cases the…
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Progress and future directions in borophene research
Novoselov, K. S., Mishchenko, A., Carvalho, A. & Castro Neto, A. H. 2D materials and van der Waals heterostructures. Science 353, aac9439 (2016).
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Low-cost optical sensors in electrified lab-on-a-disc platforms: liquid-phase boundary detection and automated diagnostics
As previously noted, increasing the light intensity results in decreased electrical resistance in LDRs. To explore this correlation, we conducted experiments with varying light intensities by adjusting LED voltage directed at the array of three…
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The use of dendritic fibrous nano-titanium to enhance the initial characteristics and durability of lightweight concrete
Figure 1 illustrates DFNT NPs obtained through FESEM and TEM techniques. The DFNT case exhibited tilts resembling septa, characterized by stable masses and dendrimer cords. These strings had thicknesses varying between 35 and 45 nm and were…
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UV-enhanced exfoliated MoS2/PtSe2 heterostructure for ultra-sensitive NO2 detection at room temperature
Morphological and topographical studies
Figure 1a shows the cross-sectional schematic diagram of the MoS2/PtSe2 heterostructure device. Our PCB-bonded prototype gas sensor, where two of the electrodes on the SiO2/Si substrate are connected with…
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Blood nerve barrier permeability enables nerve targeting of circulating nanoparticles in experimental autoimmune neuritis
Willison, H. J., Jacobs, B. C. & van Doorn, P. A. Guillain-Barré syndrome. Lancet 388, 717–727 (2016).
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Van Doorn, P. A. What’s new in Guillain-Barre syndrome in 2007–2008?….
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Wavelength-accurate and wafer-scale process for nonlinear frequency mixers in thin-film lithium niobate
Conventional pole-before-etch-process for quasi-phase matching in TFLN
The most basic χ(2)-based optical frequency mixers in TFLN rely on a rib waveguide oriented orthogonal to the material’s crystallographic z-axis (Fig. 1a). For efficient…
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Enhanced and directional electroluminescence from MicroLEDs using metallic or dielectric metasurfaces
Blue LEDs and metasurface structures
The blue-emitting LED wafer was fabricated by the company Lumileds. The wafer consists of multiple layers, including a TCO layer with a thickness of 20 nm, a 50 nm layer of p-GaN, two InGaN quantum…
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