Enhancing the Performance of Fluorinated Graphdiyne Moisture Cells via Hard Acid-Base Coordination of Aluminum Ions.

Moisture-enabled electric generators (MEGs) are emerging as a transformative energy technology, capable of directly converting ambient moisture into electrical energy without producing pollutants or harmful emissions. However, the widespread application of MEGs is hindered by challenges such as intermittent output and low current densities, which limit power density and prevent large-scale integration. Here, a novel moisture cell based on Al ion-F coordination-specifically, a fluorinated graphdiyne (FGDY) Al-ion moisture cell (FGDY AlMC) is introduced.

TELS: Evolution patterns of research keywords from the evidence of PNAS Social Sciences topics.

By reviewing scientific literature, researchers may obtain a comprehensive understanding of field developments, keeping abreast of the current research status and hotspot shifts. The evolution pattern of keywords is supposed to be an efficient indicator in revealing the shifting and sustainability configuration of scientific concepts, ideas, and research hotspots. Here we take an extensive investigation of the evolution of keywords among all publications in PNAS Social Sciences from 1990 to 2021.

Low-Dimensional Nanomaterial Systems Formed by IVA Group Elements Allow Energy Conversion Materials to Flourish.

In response to the exhaustion of traditional energy, green and efficient energy conversion has attracted growing attention. The IVA group elements, especially carbon, are widely distributed and stable in the earth's crust, and have received a lot of attention from scientists. The low-dimensional structures composed of IVA group elements have special energy band structure and electrical properties, which allow them to show more excellent performance in the fields of energy conversion.

1,25-Dihydroxyvitamin D deficiency accelerates male reproductive senescence in aging mice and 1,25(OH)D alleviates oxidative stress via NF-κB/SOD.

1,25(OH)D has been demonstrated to exert direct actions on male reproductive system in humans or in animals. With age, renal synthesis of 1,25(OH)D declines significantly, and vitamin D supplementation has been found to alleviate the manifestations of male reproductive aging. Therefore, the relationship between 1,25(OH)D and male reproductive aging needs further study.

Influences of pressure on structural and electronic properties of four types of HMX.

The crystal and electronic structures of four polymorphs of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) from 0 to 30 GPa were investigated by using density functional theory. The obtained structural parameters based on the GGA-PBE+TS calculations are in agreement with experimental results at ambient pressure. As the pressure increases, the volumes of the four types of HMX decrease monotonically and the band gaps gradually decrease without any significant discontinuity.

Protective effect of total phenylethanoid glycosides from Monochasma savatieri Franch on myocardial ischemia injury.

The present study was designed to investigate the cardioprotective effect of total phenylethanoid glycosides from Monochasma savatieri Franch (TPG). The data showed that there were mainly four phenylethanoid glycosides isolated and identified from TPG. TPG significantly increased cells viability and inhibited morphological changes on H9c2 cardiomyocytes induced by H2O2 or Na2S2O4.

Antimicrobial, anti-inflammatory activities and toxicology of phenylethanoid glycosides from Monochasma savatieri Franch. ex Maxim.

Ethnopharmacological Relevance: Monochasma savatieri Franch. ex Maxim is used for treating many diseases in Traditional Chinese Medicine.

Aim Of The Study: The present study was designed to evaluate antibacterial, anti-inflammatory activities and toxicity of the total phenylethanoid glycosides from Monochasma savatieri Franch.

Phenylethanoid glycosides from Monochasma savatieri and their anticomplement activity through the classical pathway.

Five new phenylethanoid glycosides, savasides A-E (1-5), along with 6 known ones were isolated from the whole plant of Monochasma savatieri Franch. The structures of 1-5 were elucidated on the basis of spectroscopic data analysis. Moreover, all isolated compounds were evaluated for anticomplement activity through the classical pathway.