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Immunologic cell deaths: involvement in the pathogenesis and intervention therapy of periodontitis.
Naunyn Schmiedebergs Arch Pharmacol
December 2024
Department of Stomatology, Yongzhou Central Hospital, Yongzhou, Hunan Province, 425000, China.
Periodontitis is one of the most common diseases and primary causes of tooth loss. The main factor that causes periodontitis is an overactive host immunological response. An in-depth investigation into the molecular pathways that cause periodontitis can aid in creating novel therapeutic approaches for periodontitis and its related systemic disorders.
View Article and Find Full Text PDFCrosslinking-Driven Chemical Homogeneity Enhances Performance of Pre-Seeded Perovskite Solar Cells.
Small
December 2024
School of Materials and Energy, Yunnan University, Kunming, 650091, China.
Perovskite solar cells (PSCs) have achieved impressive efficiency, but their commercialization is limited by issues like chemical homogeneity within the perovskite films, leading to defects and phase segregation, which severely compromise the stability and performance of PSCs. This study presents a novel approach to overcoming these barriers by employing N,N-methylenebisacrylamide (MBA) as a multifunctional crosslinking agent within the perovskite structure. MBA enhances chemical uniformity both laterally and vertically, improves crystallinity, and boosts overall film stability by forming a robust crosslinked network that regulates nucleation and growth dynamics during the pre-seeding process.
View Article and Find Full Text PDFBoosting Electrocatalytic Nitrate Reduction through Enhanced Mass Transfer in Cu-Bipyridine 2D Covalent Organic Framework Films.
Angew Chem Int Ed Engl
December 2024
Shanghai University, Chemistry, CHINA.
Electrocatalytic nitrate reduction (NO3RR) is a promising method for pollutant removal and ammonia synthesis and involves the transfer of eight electrons and nine protons. As such, the rational design of catalytic interfaces with enhanced mass transfer is crucial for achieving high ammonia yield rates and Faradaic efficiency (FE). In this work, we incorporated a Cu-bipyridine catalytic interface and fabricated crystalline 2D covalent organic framework films with significantly exposed catalytic sites, leading to improved FE and ammonia yield (FE = 92.
View Article and Find Full Text PDFElectrochemical Selective Nitrate Reduction: Pathways to Nitrogen and Ammonia Production.
Chem Rec
December 2024
Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh.
Nitrate (NO ) contamination from industrial, agricultural, and anthropogenic activities poses significant risks to human health and ecosystems. While traditional NO remediation methods are effective, they often generate secondary pollutants and incur high costs. Electrochemical NO reduction (ECNR) offers a sustainable alternative, converting NO into environmentally benign nitrogen (N) or valuable ammonia (NH).
View Article and Find Full Text PDFTotal synthesis of twenty-five picrotoxanes by virtual library selection.
Nature
December 2024
Department of Chemistry, Scripps Research, La Jolla, California, USA.
The synthesis of a complex molecule begins from an initial design stage in which possible routes are triaged by strategy and feasibility, based on analogy to similar reactions. However, as molecular complexity increases, predictability decreases; inevitably, even experienced chemists resort to trial-and-error to identify viable intermediates en route to the target molecule. We encountered such a problem in the synthesis of picrotoxane sesquiterpenes in which pattern recognition methods anticipated success, but small variations in structure led to failure.
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