Lighting up metal nanoclusters by the HO-dictated electron relaxation dynamics.

The modulation of traps has found attractive attention to optimize the performance of luminescent materials, while the understanding of trap-involved photoluminescence management of metal nanoclusters greatly lags behind, thus extensively impeding their increasing acceptance as the promising chromophores. Here, we report an efficient passivation of the structural oxygen vacancies in AuAg nanoclusters by leveraging the HO molecules, achieving a sensitive color tuning from 536 to 480 nm and remarkably boosting photoluminescence quantum yield from 5.3% (trap-state emission) to 91.

Dynamic boron-doping switched chitin-based single-atom Pt catalyst for chemo-selective hydrogenation.

Biomass valorization is a way to promote the 'waste-to-wealth' concept, which is a pre-requisite condition for a future sustainable lifestyle. The direct utilization of natural polymer for value-added materials should be prioritized. With this object, we demonstrate a facile and economical method to prepare chitin-derived supramolecular nanowires-stabilized single-atom sites Pt catalysts (SS-Pt-CSNs).

Quasi Fe MIL-53 nanozyme inducing ferroptosis and immunogenic cell death for cancer immunotherapy.

Nanozymes offer diverse therapeutic potentials for cancer treatment which is dependent on the development of nanomaterials. Quasi-metal-organic framework is a class of metal-organic framework-derived nanomaterials with a transition state from metal-organic frameworks towards metal oxide featuring porous structure and high activity. Herein an iron-based quasi-metal-organic framework nanozyme Q-MIL-53(Fe) is reported via a controlled deligandation strategy, exhibiting enhanced peroxidase-/catalase-mimic activity and glutathione depletion capacity, whose underlying mechanisms are studied via density functional theory calculations.

Application of separation and configuration identification of the four tetrabenazine stereoisomers in determining their pharmacokinetics.

Tetrabenazine (TBZ) is used in the treatment of psychiatric diseases, and it works by inhibiting vesicular monoamine transporter 2 (VMAT2) protein to exert a curative effect. TBZ is administered as the mixture of stereoisomers in clinical treatment. TBZ has two chiral centers, and therefore, it has four stereoisomers, and this greatly makes it difficult to separate the stereoisomers and to identify their configurations because of their high susceptibility to structural transformation.

IGF2BP1-HAX-1 positive feedback loop-mediated HAX-1 overexpression blocks autophagic flux and promotes chemoresistance in nasopharyngeal carcinoma.

Autophagy is associated with chemoresistance, which is the leading cause of failure in chemotherapeutic treatments. Among the various aspects of autophagy, autophagic flux serves as a critical indicator for evaluating the dynamic processes involved.We report herein that the multifunctional protein HAX-1 promotes chemoresistance by effectively blocking the fusion of autophagosomes with lysosomes.

Overcoming Matrix Barriers for Enhanced Immune Infiltration Using siRNA-Coated Metal-Organic Frameworks.

The extracellular matrix (ECM) of solid tumor constitutes a formidable physical barrier that impedes immune cell infiltration, contributing to immunotherapy resistance. Breast cancer, particularly triple-negative breast cancer (TNBC), is characterized by a collagen-rich tumor microenvironment, which is associated with T cell exclusion and poor therapeutic outcomes. Discoidin domain receptor 2 (DDR2) and integrins, key ECM regulatory receptors on cancer cells, play pivotal role in maintaining this barrier.

A vitro study of the effect of different methods of removing calcium hydroxide from root canals.

Objective: To compare the efficiency of four methods for removing calcium hydroxide in root canals.

Methods: 80 mandibular single-tube permanent premolars were instrumented to ProTaper Universal F4. The teeth were split in two lengthwise, standardized grooves, and depressions were prepared on the wall of the root canal and filled with calcium hydroxide.

Efficient electrolytic hydrogen evolution from cobalt porphyrin covalently functionalized with chain-like phosphazene on double-walled carbon nanotubes.

The development of efficient electrocatalysts for the hydrogen evolution reaction (HER) is crucial for advancing electrochemical water splitting technology. Herein, we report a novel hybrid electrocatalyst, CoTHPP-PDCP@DWCNTs, synthesized through a covalent functionalization of cobalt-porphyrin (CoTHPP) with chain-like polydichlorophosphazenes (PDCP) and subsequent incorporation onto double-walled carbon nanotubes (DWCNTs). The successful synthesis was confirmed by various spectroscopic techniques, which collectively revealed strong electronic interactions between components, improved charge transfer, and enhanced electrochemical stability.

Modulation of Third-Order Nonlinear Optical Properties by Interfacial Interactions of Defected Bimetallic-MOF@CeO.

MOF@CeO composites with good interfacial compatibility have garnered significant attention in the field of third-order nonlinear optics (NLO). However, the interfacial interaction between the MOFs and CeO is commonly weak, which severely weakens the third-order NLO properties of the composites. In this study, we chose the parent Zn-MOF ({[Zn(BPAN)(ndcpa)]·DMA·HO}) (BPAN = 9,10-bis(4-pyridyl)anthracene and Hndcpa = naphthalene-2,6-dicarboxylicacid) and synthesized bimetallic-MOFs (ZnNi-MOF and ZnCo-MOF) by solvent-assisted metal-ion exchange.

Buried Interface Passivation with 3,4,5-Trifluorophenylboronic Acid Enables Efficient and Stable Inverted Perovskite Solar Cells.

The p-i-n type perovskite solar cells with a nickel oxide (NiOx) hole transport layer in combination with self-assembled monolayers (SAMs) have a high power conversion efficiency (PCE) of over 26%. The surface properties of the SAM layer have a significant impact on the growth and crystallization of the perovskite film. In the meanwhile, defects formed during thermal annealing at the SAM layer and the perovskite layer interface would act as charge recombination centers, decreasing device performance and stability.

Radiation Dose-Volume Effects on Negative Tumor-Draining Lymph Nodes Impacted T-Cell Activation and Prognosis in Esophageal Cancer with Chemoradiotherapy.

Purpose: Preclinical model found that elective nodal irradiation (ENI) attenuated the efficacy of radiotherapy and radio-immunotherapy. However, limited clinical studies have explored the correlation between radiation dose-volume parameters of negative tumor draining lymph nodes (TDLNs) and T-cell activation/prognosis for cancer patients treated with definitive radio(chemo)therapy.

Experimental Design: Patients with locally advanced esophageal cancer undergoing definitive chemoradiotherapy (CRT) were selected from two prospective trials.

New Isoxazoline Cyclopropyl-Picolinamide Derivatives as Potential Insecticides.

Isoxazoline insecticides exhibit broad-spectrum insecticidal activity against insect pests. However, the high toxicity to honeybees limits their application in pest management. To explore reducing the toxicity of isoxazoline derivatives to bees, a series of new isoxazoline cyclopropyl-picolinamide derivatives were designed and synthesized.

Harnessing Infinite Coordination Polymers to Eliminate Harmful Environmental DNA for Water Purification.

Harmful environmental DNA (eDNA) contamination in water poses significant health risks, yet traditional treatments fall short of achieving efficient removal. Here, we introduce 1MIA-Zr, a bioinspired infinite coordination polymer catalyst modeled after natural nucleases. 1MIA-Zr achieves a DNA hydrolysis rate approximately 40 times greater than that of UiO-66 REO, the previous best zirconium-based catalyst.

Citrulline regulates macrophage metabolism and inflammation to counter aging in mice.

Metabolic dysregulation and altered metabolite concentrations are widely recognized as key characteristics of aging. Comprehensive exploration of endogenous metabolites that drive aging remains insufficient. Here, we conducted an untargeted metabolomics analysis of aging mice, revealing citrulline as a consistently down-regulated metabolite associated with aging.

Novel Cyanoethyl Cellulose-based Bilayer Materials for Electrowetting Displays at Low Voltage.

Electrowetting displays (EWD) still face the challenge of high driving voltages, provided by specialized driver ICs for electrowetting technologies. However, if the driving voltage is reduced to the threshold of widely used driver ICs of liquid crystal displays, it would significantly accelerate the revolution of driving ICs for EWD devices. Cyanoethyl cellulose (CEC) is utilized as a novel dielectric layer for electrowetting-on-dielectric systems and shows a large contact angle modulation, enabling low-voltage-driven wettability and device operation.

Strategies for Stabilizing Metal Halide Perovskite Light-Emitting Diodes: Bulk and Surface Reconstruction of Perovskite Nanocrystals.

Light-emitting colloidal lead halide perovskite nanocrystals (PeNCs) are considered promising candidates for next-generation vivid displays. However, the operational stability of light-emitting diodes (LEDs) based on PeNCs is still lower than those based on polycrystalline perovskite films, which requires an understanding of defect formation in PeNCs, both inside the crystal lattice ("bulk") and at the surface. Meanwhile, uncontrollable ion redistribution and electrochemical reactions under LED operation can be severe, which is also related to the bulk and surface quality of PeNCs, and a well-designed device architecture can boost carrier injection and balance radiative recombination.

Tuning the Near-Infrared Aggregate of a Multicationic Photosensitizer through Molecular Coassembly for Symbiotic Photothermal Therapy and Chemotherapy.

Cationic photosensitizers (PSs) offer many intriguing advantages, in addition to generating heat or reactive oxygen species for cancer phototherapy. However, the preparation of cationic PSs with enhanced near-infrared (NIR) absorption remains a significant challenge. In this work, we have synthesized a PS TPBBT, which incorporates a strong electron-withdrawing unit, benzobisthiadiazole, and four terminal pyridinium groups.

Mechanism of Copper Stress on Algae Determined Using Mass Spectrometry Molecular Network: Molecular Characteristics and Metabolite Identification.

Algae typically respond to environmental changes by regulating the production and release of metabolites that affect water quality and cause various environmental issues. In this study, we investigated the role of algal organic matter (AOM) in copper [Cu(II)] using high-resolution mass spectrometry and a molecular-network-based nontargeted screening. The abundance and activity of algae were inhibited after the addition of Cu(II).

Andrographolide ameliorates sepsis-induced acute liver injury by attenuating endoplasmic reticulum stress through the FKBP1A-mediated NOTCH1/AK2 pathway.

Andrographolide (AP) has been shown to possess anti-inflammatory activities. In this study, the impact of AP in sepsis-induced acute liver injury (ALI) and the molecules involved were dissected. FKBP1A was predicted to be the sole target protein of AP that was also differentially expressed in the GSE166868 dataset.

Advances of Vis/NIRS and imaging techniques assisted by AI for tea processing.

Tea is one of the most popular drinks due to its distinct flavor and numerous health benefits. The quality of tea is closely related to production processing. Human sensory evaluation is the conventional method for quality monitoring in tea processing.

Developing a mutant strain of Pseudomonas composti ODT-54 for enhanced production of Psl extracellular polysaccharide.

In our previous study, a strain of Pseudomonas composti ODT-54 was isolated from the oyster digestive tissues. This strain is capable of producing Psl exopolysaccharides (EPS), which are directly involved in the specific binding to norovirus GII.6 P proteins.

Ultrasensitive detection of doxycycline enabled by oxygen vacancy modulated TiO nanotubes.

TiO nanotubes rich in oxygen vacancies (Ov), which were successfully fabricated on Ti foils, were used as the working electrode of a photoelectrochemical (PEC) sensor. The TiO nanotube electrode optimized with abundant Ov demonstrated a remarkable photocurrent density of 1.03 mA/cm, which is approximately 2.

Anatomic distribution and analysis of influencing factors on deep vein thrombosis in patients with spinal fractures caused by high-energy injuries.

Purpose: To analyze the anatomic distribution and influencing factors on deep vein thrombosis (DVT) in patients with spinal fractures caused by high-energy injuries.

Methods: A retrospective analysis was performed on 302 patients of lower extremity DVT who were admitted to our hospital from January 2018 to December 2023. All patients underwent ultrasonography of DVT before and after surgery.

Flow-cytometric lymphocyte subsets enumeration: comparison of single/dual-platform method in clinical laboratory with dual-platform extended PanLeucogating method in reference laboratory.

Objectives: To improve the accuracy of lymphocyte subsets counts, a traceable dual-platform extended PanLeucogating method (DPP) of absolute cell counts of lymphocyte subsets was introduced, and consistency was evaluated by comparing conventional single/dual-platform method with DPP.

Methods: The DPP for absolute lymphocyte subsets counts was established by multiplying the percentage of lymphocyte subsets in total white blood cells (WBC) measured by flow cytometer with the total WBC counts. DPP-R was defined as the use of the total WBC counts measured in reference laboratory that was traceable to reference method recommended by International Council for Standardization in Hematology (ICSH).