Nuclear spin relaxation and the Knight shift for (71)Ga, (69)Ga, and (115)In isotopes were studied by nuclear magnetic resonance (NMR) in liquid gallium-indium alloy confined to porous glass and alloy surface film and were compared with the bulk counterparts. Drastic spin relaxation acceleration under nanoconfinement was observed for the three isotopes. Quadrupole and magnetic contributions to spin relaxation were separated for gallium and indium isotopes using the experimental data obtained, which allowed, in particular, the evaluation of correlation times of atomic mobility. The strong decrease in the correlation time was found for confined alloy which evidenced a remarkable diffusion slowdown. The effect of changes in atomic mobility on NMR line broadening was also discussed.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1088/0953-8984/22/19/195108 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
DFT study of GaAs quantum dot and 5CB liquid crystal molecule interaction.
J Mol Graph Model
January 2025
Institute of Chemical Physics after A.B. Nalbandyan of NAS RA, 5/2 P. Sevak St., Yerevan, 0014, Armenia.
Liquid crystals (LC) are widely used in various optical devices due to their birefringence, dielectric anisotropy, and responsive behavior to external fields. Enhancing the properties of existing LCs through doping with nanoparticles, including semiconductor quantum dots, offers a promising route for improving their performance. Among various nanoparticles, QDs stand out for their high charge mobility, sensitivity in the near-infrared spectral region, and cost-effectiveness.
View Article and Find Full Text PDFDesign of an Atomic Layer-Deposited InO/GaO Channel Structure for High-Performance Thin-Film Transistors.
ACS Appl Mater Interfaces
January 2025
Department of Electronic Engineering, Hanyang University, Seoul 04763, Republic of Korea.
For potential application in advanced memory devices such as dynamic random-access memory (DRAM) or NAND flash, nanolaminated indium oxide (In-O) and gallium oxide (Ga-O) films with five different vertical cation distributions were grown and investigated by using a plasma-enhanced atomic layer deposition (PEALD) process. Specifically, this study provides an in-depth examination of how the control of individual layer thicknesses in the nanolaminated (NL) IGO structure impacts not only the physical and chemical properties of the thin film but also the overall device performance. To eliminate the influence of the cation composition ratio and overall thickness on the IGO thin film, these parameters were held constant across all conditions.
View Article and Find Full Text PDFExploring the Activation of Atomically Precise [Pt(CO)(PPh)] Clusters: Mechanism and Energetics in Gas Phase and on an Inert Surface.
ACS Nano
January 2025
Institute of Physical Chemistry, Karlsruhe Institute of Technology, Kaiserstraße 12, Karlsruhe 76131, Germany.
Atomically precise clusters such as [Pt(CO)(PPh)] ( = 1,2) (PPh is triphenylphosphine) are known as precursors for making oxidation catalysts. However, the changes occurring to the cluster upon thermal activation during the formation of the active catalyst are poorly understood. We have used a combination of hybrid mass spectrometry and surface science to map the thermal decomposition of [Pt(CO)(PPh)](NO).
View Article and Find Full Text PDFConformational Engineering of Flexible Protein Fragments on the Surface of Different Nanoparticles: The Surface-Atom Mobility Rules.
ChemMedChem
January 2025
Shanghai University, Institute of Nanochemistry and Nanobiology, No.99 Shangda Rd. Rm201, Bldg. E, 200444, Shanghai, CHINA.
As a newly emerging technology, conformational engineering (CE) has been gradually displaying the power of producing protein-like nanoparticles (NPs) by tuning flexible protein fragments into their original native conformation on NPs. But apparently, not all types of NPs can serve as scaffolds for CE. To expedite the CE technology on a broader variety of NPs, the essential characteristic of NPs as scaffolds for CE needs to be identified.
View Article and Find Full Text PDFAGEing of collagen: The effects of glycation on collagen's stability, mechanics and assembly.
Matrix Biol
February 2025
Department of Physics, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada. Electronic address:
Advanced Glycation End Products (AGEs) are the end result of the irreversible, non-enzymatic glycation of proteins by reducing sugars. These chemical modifications accumulate with age and have been associated with various age-related and diabetic complications. AGEs predominantly accumulate on proteins with slow turnover rates, of which collagen is a prime example.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!