Efficient ternary organic solar cells with suppressed nonradiative recombination via B‒N based polymer donor.

Organic solar cells (OSCs) have developed rapidly in recent years. However, the energy loss ( ) remains a major obstacle to further improving the photovoltaic performance. To address this issue, a ternary strategy has been employed to precisely tune the and boost the efficiency of OSCs.

An isolable boron-centered radical anion stabilized by a carbazole moiety.

The isolation of a stable persistent carbazole-stabilized boron-centered monoradical anion 1˙, which has a high spin density at the B atom, has been reported. It is characterized using the crystal structure and UV-vis absorption spectrum, as well as electron paramagnetic resonance spectroscopy. Interestingly, the B-N bond was activated by the boron-centered radical anion 1˙, which had not been reported before.

Unveiling the electrochemical nitrogen reduction reaction mechanism in heteroatom-decorated-MoCS-MXene: the synergistic effect of single-atom Fe and heteroatom.

Conversion of nitrogen (N) to ammonia (NH) is a significant process that occurs in environment and in the field of chemistry, but the traditional NH synthesis method requires high energy and pollutes the environment. In this work, the charge, orbital and spin order of the single-atom Fe loaded on heteroatom (X) doped-MoCS (X = B, N, O, F, P and Se) and its synergistic effect on electrochemical nitrogen reduction reaction (eNRR) were investigated using well-defined density functional theory (DFT) calculations. Results revealed that the X-element modified the charge loss capability of Fe atoms and thereby introduced a net spin through heteroatom doping, resulting in the magnetic moment modulation of Fe.

Growth of Hexagonal Boron Nitride from Molten Nickel Solutions: A Reactive Molecular Dynamics Study.

Metal flux methods are excellent for synthesizing high-quality hexagonal boron nitride (hBN) crystals, but the atomic mechanisms of hBN nucleation and growth in these systems are poorly understood and difficult to probe experimentally. Here, we harness classical reactive molecular dynamics (ReaxFF) to unravel the mechanisms of hBN synthesis from liquid nickel solvent over time scales up to 30 ns. These simulations mimic experimental conditions by including relatively large liquid nickel slabs containing dissolved boron and a molecular nitrogen gas phase.

Promoting SO and OH Generation from Sulfate Solution toward Efficient Electrochemical Oxidation of Organic Contaminants at a B/N-Doped Diamond Flow-Through Electrode.

Electrochemical oxidation via in situ-generated reactive oxygen species (ROS) is effective for the mineralization of refractory organic pollutants. However, the oxidation performance is usually limited by the low yield and utilization efficiency of ROS. Herein, a B/N-doped diamond (BND) flow-through electrode with enhanced SO/OH generation and utilization was designed for electrochemical oxidation of organic pollutants in sulfate solution.

A novel approach for managing the incisions of tibial plateau fractures with soft tissue swelling.

To investigate the feasibility and clinical efficacy of a novel approach to managing the incisions used to treat tibial plateau fractures (TPFs) with soft tissue swelling. We retrospectively enrolled 64 patients with TPFs who underwent surgery at the Second Hospital of Shandong University. Patients were divided into two groups: Group A (n = 32) underwent early surgery with the novel incision management technique, and Group B (n = 32) underwent conventional surgery after swelling reduction.

Multi-Omics Analysis for Identifying Cell-Type-Specific Druggable Targets in Alzheimer's Disease.

Background: Analyzing disease-linked genetic variants via expression quantitative trait loci (eQTLs) is important for identifying potential disease-causing genes. Previous research prioritized genes by integrating Genome-Wide Association Study (GWAS) results with tissue-level eQTLs. Recent studies have explored brain cell type-specific eQTLs, but they lack a systematic analysis across various Alzheimer's disease (AD) GWAS datasets, nor did they compare effects between tissue and cell type levels or across different cell type-specific eQTL datasets.

B, N Codoped Defective Reduced Graphene Oxide as a Highly Efficient Frustrated Lewis Pairs Catalyst for the Selective Hydrogenation of α,β-Unsaturated Aldehydes to Unsaturated Alcohols.

The development of all-solid-state frustrated Lewis pairs (FLPs) metal-free hydrogenation catalysts with excellent activity and stability remains a significant challenge. In this work, B, N codoped FLPs catalysts (De-rGO-NB) were prepared by the strategy of fabricating carbon defects and heteroatom doping on the surface of reduced graphene oxide and applied in the selective hydrogenation of α,β-unsaturated aldehydes to unsaturated alcohols. It was found that electron-rich pyridine-N (Lewis base) and adjacent electron-deficient B-N (Lewis acid) sites could be constructed on the surface of reduced graphene oxide using dicyandiamide and metaboric acid as N and B sources, thus forming FLPs sites.

Accelerator neutron sources for BNCT: Current status and some pointers for future development.

Recent decades have seen the development of accelerator neutron sources suitable for installation in a hospital setting. Numerous challenges have been faced and solved to deliver technology which continues to transform the field of BNCT. This paper begins by briefly reviewing the technologies which are currently, or soon will be, in clinical use.

Long-term Efficacy of Prostatic Artery Embolization Alone Versus Prostatic Artery Embolization Followed by HoLEP for Large (> 80 cm) Benign Prostatic Hyperplasia.

Rationale And Objectives: To compare the long-term efficacy of prostatic artery embolization (PAE) with PAE followed by holmium laser enucleation of the prostate (HoLEP) for benign prostatic hyperplasia (BPH) in patients with large prostatic volume (PV>80 cm), and to identify the appropriate population for PAE+HoLEP.

Methods: From March 2015 to December 2023, 208 consecutive BPH patients were enrolled into two groups: PAE monotherapy (Group A, n=168) and PAE followed by HoLEP (Group B, n=40). Differences in clinical and functional parameters between baseline and each follow-up point were compared.

High-nitrogen-content energetic BN ( = 4-16) clusters.

Nitrogen-rich materials have attracted considerable attention in recent years as potential high-energy-density materials (HEDMs). However, their metastability poses substantial challenges for synthesis under ambient conditions. Here, we employ a novel strategy to explore energetic and structural features of the nitrogen-rich BN ( = 4-16) clusters by doping with the light non-metal boron.

A General "Two-Lock" Strategy to Enhance Drug Loading and Lysosomal Escape in Intelligent Boronate Ester Polymer Nanoparticles for Improved Chemotherapy.

Boronate ester can be used to prepare intelligent polymer nanoparticles (NPs). However, the traditional boronate ester polymer NPs made of boronic acid and diols using a "single-lock" strategy (B-O NPs) exhibit low drug loading capacity (DLC) and insufficient lysosomal escape ability, resulting in limited antitumor efficacy. We develop a "two-lock" strategy that combines dodecanamine and boronic acid using boron-nitrogen (B ← N) coordination to enhance the formation of a boronate ester polymer.

Effects of Surgery on Hemodynamics and Postoperative Delirium in Stanford Type A Aortic Dissection.

Objective: To investigate the impact of surgical intervention on hemodynamic parameters and postoperative delirium in Stanford Type A aortic dissection patients.

Methods: A retrospective analysis was conducted on 139 patients who underwent surgery for Stanford Type A aortic dissection from February 2022 to February 2024. Hemodynamic parameters, including maximum ascending aortic diameter (MAAD), left ventricular end-diastolic diameter (LVEDd), and ejection fraction (LVEF), were compared pre- and post-surgery.

A tetrathiafulvalene-containing covalent organic nanobelt: preparation, crystal structure and application for sodium-ion batteries.

Developing single crystals of covalent organic polymers (COPs) is highly attractive as they can afford precise structural information for studying internal interactions. Employing dative boron-nitrogen (B-N) bonds to construct single-crystalline COPs is feasible since the dynamic linkages can self-correct errors, thus improving crystallization. In this project, we develop a single-crystal COP with a nanobelt structure, namely CityU-26, B-N-driven-assembly between 4,4',5,5'-tetrakis(4-(pyridin-4-yl)phenyl)-2,2'-bi(1,3-dithiolylidene) and 1,4-bis(benzodioxaborole) benzene.

B: a complete coating icosahedral B core-shell structure.

Using first-principles calculations, this study unveils a spherically aromatic core-shell B@B structure featuring a B icosahedral core, which is the smallest complete coating icosahedral B core-shell B cluster to date. Detailed orbital and bonding analyses reveal that the icosahedral B core exhibits prominent superatomic behavior with the electronic configuration 1S1P1D1F.

Online Depression Communities as a Complementary Approach to Improving the Attitudes of Patients With Depression Toward Medication Adherence: Cross-Sectional Survey Study.

Background: Lack of adherence to prescribed medication is common among patients with depression in China, posing serious challenges to the health care system. Online health communities have been found to be effective in enhancing patient compliance. However, empirical evidence supporting this effect in the context of depression treatment is absent, and the influence of online health community content on patients' attitudes toward medication adherence is also underexplored.

Detection of C-shaped mandibular second molars on panoramic radiographs using deep convolutional neural networks.

Objectives: The C-shaped mandibular second molars (MSMs) may pose an endodontic challenge. The aim of this study was to develop a convolutional neural network (CNN)-based deep learning system for the diagnosis of C-shaped MSMs on panoramic radiographs.

Materials And Methods: Panoramic radiographs and cone beam computed tomographic (CBCT) images were collected from a hospital in China and subsequently divided into two groups.

Efficacy of Vitamin-D supplementation in improving the prognosis of H-type hypertension in elderly patients.

Objective: To investigate the correlation between 25-hydroxyvitamin D and H-type hypertension in elderly patients, and to observe the clinical efficacy of vitamin D supplementation in those patients.

Methods: This was a retrospective study. One hundred and twenty elderly hypertensive patients treated at The Affiliated Hospital of Hebei University from June 2022 to June 2023 were randomly divided into Group-A (n=60) with hypertension and elevated homocysteine (Hcy) levels (H-type hypertension), and Group-B(n=60) with hypertension and normal Hcy levels.

One-Stage Orbital Decompression Combined With Intraoperative Muscle Relaxation for TAO: A Randomized Controlled Trial.

Purpose: To gauge the efficacy and safety of performing a one-stage endoscopic orbital decompression procedure combined with the intraoperative relaxed medial rectus muscle (MR) positioning technique as a means of treating esotropia associated with thyroid-associated ophthalmopathy (TAO).

Design: Prospective, single-blind, randomized controlled trial.

Setting: Eye Hospital of Wenzhou Medical University.

Measurement of ureteral length: Comparison of deep learning-based method and other estimation methods on CT and KUB.

Background: Accurate preoperative assessment of ureteral length is crucial for effective ureteral stenting.

Purpose: Utilize a deep learning approach to measure ureter length on CT urography (CTU) images and compare the obtained results with those derived from other estimation methods.

Methods: In a retrospective cohort (cohort A, n = 411), CTU images were collected and used to develop a 3D deep learning model for the segmentation of bilateral ureters.

Edaravone Dexborneol protects against blood-brain barrier disruption following cerebral ischemia/reperfusion by upregulating pericyte coverage via vitronectin-integrin and PDGFB/PDGFR-β signaling.

Background: Recent advancements in brain cytoprotection therapies following cerebral ischemia-reperfusion (I/R) injury have become an emerging interest. Pericytes were vulnerable during the early stages of ischemia. This study aims to explore the protective effects of Edaravone dexborneol (Eda.

Synthesis, Characterization and Antibacterial Activity Study of Para-Substituted Derivatives of N-Benzyl-3-Methylbuten-2-Enamides.

In order to deeply explore the effect of para-substituents on the antibacterial activity of N-benzyl-3-methylbuten-2- enamide derivatives, we elaborately synthesized three such para-substituted derivatives (compound a: N-(4-hydroxybenzyl)-3-methylbut-2- enamide; compound b: N-(4-isobutoxybenzyl)-3- methylbut-2-enamide; compound c: N-(4-isopropoxybenzyl) -3-methylbut-2- enamide), of which the structures were determined by ways of single crystal X-ray diffraction data analysis mainly. The antibacterial performance experiments showed that compounds a, b and c were evaluated for their antibacterial (Escherichia coli, Staphylococcus aureus, and Enterobacter aerogenes) activities. Among them, compounds a, b and c have an effective antibacterial reagents for E.