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Rational design of a donor-acceptor structure in covalent heptazine frameworks to boost photocatalytic nitrogen fixation.
Chem Commun (Camb)
January 2025
College of Chemistry, Baicheng Normal University, Baicheng 137018, P. R. China.
Herein, the construction of potential donor-acceptor (D-A) structures was guided using density-functional theory (DFT) calculations. The photocatalytic nitrogen fixation performance of TAPT-CHF was then experimentally determined to be 327.58 μmol g h, which was attributed to its efficient photo-induced charge separation and migration ability.
View Article and Find Full Text PDFMid-Term Outcomes of a Rectangular Stem Design with Metadiaphyseal Fixation and a 135° Neck-Shaft Angle in Reverse Total Shoulder Arthroplasty.
J Clin Med
January 2025
Shoulder and Elbow Surgery, Schulthess Clinic Zürich, 8008 Zürich, Switzerland.
: Classical reverse shoulder arthroplasty (RSA) with a high neck-shaft angle (NSA) of 155° has shown satisfactory outcomes. However, newer RSA designs aim to improve results by modifying the stem design. This study evaluates the 5-year outcomes of a stem design featuring a rectangular metadiaphyseal fixation and a 135° NSA.
View Article and Find Full Text PDFExtracellular electron shuttles induced transformation and mobilization of Fe/As with the occurrence of biogenic vivianite.
Ecotoxicol Environ Saf
January 2025
Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan 430074, PR China. Electronic address:
Microorganisms that utilize organic matter to reduce Fe oxides/hydroxides constitute the primary geochemical processes controlling the formation of high-arsenic (As) groundwater. Biogenic secondary iron minerals play a significant role in As migration. However, the influence of quinone electron shuttles and competitive anionic phosphate on this process has not been thoroughly studied.
View Article and Find Full Text PDFCompositional Differences of Various Sorption States of Cu and Cd on Goethite in the Presence of Oxyanions: A Quantitative Study.
Langmuir
January 2025
School of Environment and Energy, South China University of Technology, Guangzhou 510006, People's Republic of China.
The anionic species of antimony(V) and phosphate(V) are commonly found in the contaminated soil of mining areas, exerting a significant influence on the sorption of heavy metals and thus affecting their migration. This study quantitatively discussed the sorption mechanism of Sb and P in promoting the sorption of Cd or Cu on goethite through a series of extraction methods. In the single sorption system, the majority of Cu (87-98%) is adsorbed on goethite in the form of EDTA-extractable Cu (EF Cu, possibly inner-sphere complexes) under pH conditions of 3.
View Article and Find Full Text PDFGlenoid wear and migration pattern of a humeral head resurfacing implant: a prospective study using radio stereometric analysis.
JSES Int
November 2024
Department of Clinical Sciences at Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden.
Background: The humeral head resurfacing arthroplasty (HHR) is normally used as a hemi shoulder arthroplasty and has been in use for the treatment of Gleno-Humeral osteoarthritis (OA) of the shoulder for more than 30 years. Some studies, however, shows that anatomical total shoulder arthroplasty provides better improvement in function than a HHR for patients with OA. Reasons for this may be a progressive glenoid wear (GW) or loosening of the HHR.
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