The comproportionation reaction between Mn and Mn sources in the presence of 3,3-dimethylacrylic acid and azides has led to a new {Mn} molecular cluster with a spherical structure and dimensions of ∼2.2 nm, comparable in size to the smallest classical and magnetic nanoparticles.
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Alzheimers Dement
December 2024
Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA.
Background: Repetitive head impacts (RHI) from contact sports can lead to long-term white matter injury visualized on FLAIR scans as white matter hyperintensities (WMH). The goal of this study was to preliminarily characterize the unique pattern and features of WMH in middle aged- to older adults with remote history of exposure to RHI from contact sports.
Method: 76 participants (38 with substantial RHI, 38 with minimal or no RHI) from the Boston University Alzheimer's Disease Research Center had a FLAIR MRI during their annual study visit.
Supercarbon assembly inspired two-dimensional hourglass fermion.
J Chem Phys
January 2025
MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China.
By using a tight-binding model, first-principles calculations, and ab initio molecular dynamics simulations, we theoretically demonstrate that the C76-Td-assembled two-dimensional (2D) honeycomb lattice is stable at room temperature and is resistant to mechanical deformation. We disclose that each C76-Td mimics a single carbon atom (geometrically and electronically); hence, it plays the role of one supercarbon. This inspires that the 2D material exhibits an exotic hourglass-like fermion at the Fermi level.
View Article and Find Full Text PDFLong-range directional growth of neurites induced by magnetic forces.
Acta Biomater
January 2025
School of Life Sciences, Keele University, Staffordshire, UK. Electronic address:
The ability to control the growth and orientation of neurites over long distances has significant implications for regenerative therapies and the development of physiologically relevant brain tissue models. In this study, the forces generated on magnetic nanoparticles internalised within intracellular endosomes are used to direct the orientation of neuronal outgrowth in cell cultures. Following differentiation, neurite orientation was observed after 3 days application of magnetic forces to human neuroblastoma (SH-SY5Y) cells, and after 4 days application to rat cortical primary neurons.
View Article and Find Full Text PDFAssociation between axial elongation and corneal topography in children undergoing orthokeratology with different back optic zone diameters.
Eye Vis (Lond)
January 2025
Contact Lens and Visual Optics Laboratory, Optometry and Vision Science, Centre for Vision and Eye Research, Queensland University of Technology, Brisbane, Australia.
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High temperature QDs organization and re-crystallization in glass supported MgO QDs doped PMMA film.
Sci Rep
January 2025
Condensed Matter Physics & Nanoscience Research Laboratory, Department of Physics and Material Science, Madan Mohan Malaviya University of Technology, Gorakhpur, 273010, U.P, India.
Article Synopsis
- The study focuses on creating composite films of poly (methylmethacrylate) (PMMA) blended with magnesium oxide quantum dots (MgO QDs) at varying concentrations, and the films were annealed at 130°C for different durations to observe changes in their properties.
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