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These improvements, in particular with regard to orientation of the dipole moments on the dyes, are vital for accurate simulation of FRET processes.Selenoproteins are a family of special proteins that contain the 21st amino acid, selenocysteine (Sec), in their sequence. Selenoprotein P has 10 Sec residues and modulates selenium homeostasis and redox balance in the brain. Previously, we found that the Sec-devoid His-rich motif of selenoprotein P (Selenop-H) suppressed metal-induced aggregation and neurotoxicities of both Aβ and tau in vitro. To investigate the intervening capacity of Selenop-H on the neuropathology and cognitive deficits of triple transgenic AD (3 × Tg-AD) mice, the Selenop-H gene packaged in rAAV9 was delivered into the hippocampal CA3 regions of mice via stereotaxic injection. Four months later, we demonstrated that Selenop-H (1) improved the spatial learning and memory deficits, (2) alleviated neuron damage and synaptic protein loss, (3) inhibited both tau pathology and amyloid beta protein (Aβ) aggregation, (4) activated both BDNF- and Src-mediated TrkB signaling, and (5) increased MT3 and ZnT3 levels and restored Zn2+ homeostasis in the mice model of AD. The study revealed that Selenop-H is potent in ameliorating AD-related neuropathology and cognitive deficits by modulating TrkB signaling and Zn2+ homeostasis.NASICON-type oxide Li1+xAl x Ti2-x(PO4)3 (LATP) is expected to be a promising solid electrolyte (SE) for all-solid-state batteries (ASSBs) owing to its high ion conductivity and chemical stability. However, its interface properties with electrodes on the atomic scale remain unclear, but it is crucial for rational control of the ASSBs performance. Itacnosertib ic50 Herein, we focused on the LATP SE with x = 0.17 and investigated the electron and ion transfer behaviors at the interfaces with the Li metal negative electrode and the LiCoO2 (LCO) positive electrode via explicit interface models and density functional theory calculations. Ti reduction was found at the LATP/Li interface. For the LATP/LCO interface, the results indicated the Li-ion transfer from LCO to LATP upon contact until a certain electric double layer is formed under equilibrium, in which LCO is partially reduced. Co-Ti exchange was also found to be favorable where the Li ion moves with Co3+ to LATP. We also explored the possible interfacial processes during annealing by simulating the oxygen removal effect and found that oxygen vacancy can be more easily formed in the LCO at the interface. It implies that partial Li ions move back to LCO for the local charge neutrality. We also demonstrated higher Li chemical potential around the LATP/LCO interfaces, leading to the dynamical Li-ion depletion upon charging. The calculation results and the deduced mechanisms well explain the experimental results so far and provide insights into the interfacial electron and ion transfer upon contact, during annealing, and charging.Rheumatoid arthritis (RA) causes swollen joints and irreversible joint damage and may even elevate cancer risks. Several bioactive nonstarch polysaccharides (NSPs) were reported to alleviate RA, but the key colonic genes accountable for this alleviation were elusive. Using collagen-induced arthritis as an RA model, colonic candidate genes related to RA were selected by transcriptome and methylome. The key genes were determined by comparing the transcriptome, methylome, and quantitative reverse transcription polymerase chain reaction profiles in RA rats with and without Lycium barbarum polysaccharides' treatment and further validated using Angelica sinensis polysaccharides and Astragalus propinquus polysaccharides for comparison. Both colonic genes γ-glutamyltransferase 7 (Ggt7) and angiotensin-I-converting enzyme (Ace) were downregulated by RA, and they were upregulated after L. barbarum polysaccharides' and A. sinensis polysaccharides' intervention that reduced the RA-caused hypermethylation status in nucleotide sites in the exon/promoter region of the two genes. However, the A. propinquus polysaccharides' intervention barely reduced the hypermethylation in the corresponding sites, failing to recover the expressions of these two genes and improve RA. Therefore, the colonic Ggt7 and Ace can be considered as key genes accountable for RA alleviation by bioactive NSP intervention. This study provides a more comprehensive insight into diet intervention to improve RA.Daytime radiative cooling can spontaneously cool an object by reflecting sunlight and radiating heat in the form of infrared rays. Current daytime radiative cooling designs, including photonic structures and organic polymer-dielectric systems, are prone to age and fail under harsh conditions including high temperature, mechanical wear, and/or space irradiation. Here, an all-inorganic phosphoric acid-based geopolymer (PGEO) paint was developed and showed robust radiative cooling performance. This versatile suspension paint can be applied directly to diverse surfaces through scalable techniques such as spray coating and brushing. This inorganic coating possesses a high average hemispherical infrared emissivity >0.95 and reflects nearly 90% of solar irradiance. We attributed this excellent spectral selectivity of the PGEO coating to its unique inorganic geopolymer network (-Si-O-Al-O-P-O-), which settled the vibration intensity in a suitable range (0.2 less then k less then 1) and enabled multimode vibration. Moreover, this inorganic coating exhibits good comprehensive performance in terms of heat endurance, mechanical strength, and resistance to intense proton radiation, showing its promising applications in spacecraft, buildings, and communication base stations.Lipid membranes supported on solid surfaces and nanoparticles find multiple applications in industrial and biomedical technologies. Here, we explore in silico the mechanisms of the interactions of lipid membranes with nanostructured surfaces with deposited nanoparticles and explain the characteristic particle size dependence of the uniformity and stability of lipid coatings observed in vitro. Simulations are performed to demonstrate the specifics of 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) lipid membrane adhesion to hydrophilic and hydrophobic nanoparticles ranging in size from 1.5 to 40 nm using an original coarse-grained molecular dynamics model with implicit solvent and large simulation boxes (scales up to 280 × 154 × 69 nm3). We find that one of the major factors that affects the uniformity and stability of lipid coatings is the disjoining pressure in the water hydration layer formed between the lipid membrane and hydrophilic solid surface. This effect is accounted for by introducing a special long-range lipid-solid interaction potential that mimics the effects of the disjoining pressure in thin water layers.
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