The continuing increase in atmospheric carbon dioxide (CO), a major greenhouse gas and accelerating climate change are driving demand for innovative mitigation strategies. The photocatalytic CO reduction reaction (PCORR) presents a promising and sustainable route to convert CO into useful hydrocarbons and fuels utilizing sunlight, thereby mitigating CO emissions. This review examines the developmental aspects of light-driven CO conversion using organic polymeric photocatalysts, focusing on carbon nitrides (CNs), covalent triazine frameworks (CTFs), and covalent organic frameworks (COFs).
View Article and Find Full Text PDFThe oxygen path mechanism (OPM) has gained increasing interest as an oxygen evolution reaction (OER) pathway with facile O-O coupling. Importantly, OPM differs from both adsorbate evolution (AEM) and lattice oxygen mechanism (LOM) routes, which involve multiple intermediates and lattice oxygen, respectively. Here, an electro-activated reduced TiC MXene (rTiC) system is introduced that modulates the OER pathway by governing the population of (oxy)hydroxide species on rTiC surfaces.
View Article and Find Full Text PDFSupramolecular assemblies hold great promise for advanced chiral materials because of their structural diversity and dynamic features, but their low chiroptical activity limits practical applications. We report hierarchical supramolecular assemblies with giant chiroptical activity and mechanical attributes achieved through coassembly of achiral amphiphilic unimolecular micelles and chiral additives. Chiral fibrillar assemblies emerge from the nanostructured environment imposed by the micelles, driven by progressive chirality transfer through multiple hydrogen bonds between components.
View Article and Find Full Text PDFKorean red ginseng (KRG, Panax ginseng C.A. Meyer) contains ginsenosides, which are metabolized into active metabolites with various pharmacological effects.
View Article and Find Full Text PDF: Chestnut inner shells, traditionally used in Korean and Chinese herbal medicine, contain antioxidant and anti-inflammatory compounds that contribute to complementary medicine. This study aimed to explore the therapeutic effects of chestnut inner-shell extract (CIE) on skeletal muscle injury and atrophy using both in vivo and in vitro models. : We used three experimental models representing distinct pathological mechanisms: (1) barium chloride (BaCl)-induced muscle injury to model acute myofiber damage, (2) sciatic nerve transection to model chronic neurogenic muscle atrophy, and (3) HO-treated C2C12 myoblasts to model oxidative-stress-related myogenic impairment.
View Article and Find Full Text PDFWater electrolysis, driven by renewable electricity, offers a sustainable path for hydrogen production. However, efficient bifunctional electrocatalysts are needed to overcome the high overpotentials of both the oxygen evolution reaction and hydrogen evolution reaction. To address this, a novel catalyst system is developed integrating plasmonic nanoreactors with chirality-induced spin selectivity.
View Article and Find Full Text PDFRegulating the orientation and dynamics of interfacial water is essential for optimizing electrocatalytic reactions, yet it remains challenging due to its intrinsic disorder. Here, it is demonstrated that localized surface plasmon resonance (LSPR) on an Ir single-atom Au catalyst actively restructures the hydrogen-bond (HB) network, accelerating ammonia oxidation reaction kinetics. In situ Raman spectroscopy and density functional theory calculations reveal that plasmonic excitation shifts the HB network toward a more flexible configuration, favoring the formation of three-coordinated hydrogen-bonded water (3HB·HO) while suppressing cation-associated species (K·HO).
View Article and Find Full Text PDFIn nature, complexity emerges systematically, progressing from atoms to molecules, cells, and, ultimately, complex living organisms. This natural bottom-up evolution inspired chemists to devise similarly organized processes for the creation of complex artificial matter. Similarly, the systematic design of customizable, complex nanocrystals has long been a fundamental goal.
View Article and Find Full Text PDFDespite the increasing awareness of the health risks associated with radiation exposure such as radiotherapy and accidents, effective treatments remain limited except for bone marrow damage. Radiation-induced skin damage is a critical concern as it is often accompanied by severe inflammation and delayed wound healing. Endothelial cells have emerged as a promising therapeutic target for addressing such radiation-induced damage.
View Article and Find Full Text PDFAntioxidants (Basel)
March 2025
Chronic kidney disease (CKD) is characterized by functional and structural abnormalities, with its progression strongly influenced by oxidative stress and inflammatory responses, ultimately leading to renal fibrosis. This study aimed to investigate the effects of a and flower extract complex (NEPROBIN) through in vitro and in vivo experiments. In vitro experiments with NRK52E renal tubular epithelial cells demonstrated that NEPROBIN significantly alleviates HO-induced oxidative stress and suppresses lipopolysaccharide (LPS)-induced activation of the mitogen-activated protein kinase (MAPK) and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signaling pathways.
View Article and Find Full Text PDFBackground: Obesity is a chronic metabolic disease responsible for causing various health problems. Obese individuals experience disrupted homeostasis, thus making them more vulnerable to environmental pollutants. This study investigated the effect of pre-existing obesity on respiratory toxicity and explored whether sex differences exist in the response to titanium dioxide nanoparticles (TiO-NPs), a component of air pollutants.
View Article and Find Full Text PDFNanoparticle assembly offers promising strategy for harnessing the physicochemical interparticle interactions. Despite its potential for boosting light-matter interaction, achieving nanoparticle assembly with tip-to-tip manner remains a significant challenge. Here we show a synthetic procedure for organizing gold octahedral nanoparticles into a distinct three-dimensional upright superstructure, where the pointed tips are oriented toward neighboring nanoparticles to promote enhanced near-field focusing at these apexes.
View Article and Find Full Text PDFChronic kidney disease (CKD) involves ongoing impairment of kidney function and structural changes. Previous studies indicated that males have a substantially higher prevalence of CKD than those observed in females. Here, we compared the gender differences in CKD development by comparing age-matched male and female mice subjected to a 0.
View Article and Find Full Text PDFMycobiology
January 2025
Laccases are enzymes capable of oxidizing phenolic compounds and are important tools in different industrial processes. Heterologous expression of laccases is of great interest in biotechnological applications but achieving high expression levels is challenging. Three different laccases have been identified in the chestnut blight fungus , among which a tannic acid-inducible laccase (laccase3) was successfully expressed using .
View Article and Find Full Text PDFPathogens
December 2024
Antibiotic resistance in bacteria from companion animals poses significant public health risks. Prudent antibiotic use, particularly through pharmacokinetics/pharmacodynamics modeling, is crucial for minimizing resistance. We investigated the pharmacokinetics/pharmacodynamics of amoxicillin (AMX) against .
View Article and Find Full Text PDFUnlabelled: (L.), a member of family, has traditionally been used in numerous countries to treat and prevent various immune-related diseases. This study confirmed the oral toxicity and genotoxicity profile of standardized extract under good laboratory practice (GLP) conditions and the pharmacokinetic features of chicoric acid, a major ingredient in extract.
View Article and Find Full Text PDFHydrophobic interaction and anion exchange are major adsorption mechanisms of per- and poly-fluoroalkyl substances (PFAS) for most adsorbents. Activated carbon (AC) primarily adsorbs PFAS through hydrophobic interactions, but its removal efficiency decreases in drinking water treatment plants (DWTP) due to competition from other water constituents. To address this challenge, we grafted hydrophobic ionic liquids (ILs) onto AC, producing hydrophobic adsorbents with PFAS-selective anion exchange sites.
View Article and Find Full Text PDFThe need for antibiotics in commercial laying hens is increasing owing to intensive farming systems. Amoxicillin trihydrate (AMX), an aminopenicillin β-lactam antibiotic, exerts broad bactericidal activity. However, its short half-life necessitates frequent administration to ensure efficacy, thus limiting its use.
View Article and Find Full Text PDFBackground: There is a growing interest in understanding the association between the gut microbiota and inflammatory bowel disease (IBD). Natural compounds, such as Korean Red Ginseng (KRG), show promise for IBD treatment because of their ability to influence gut microbiota. This study explored the effects of KRG on gut microbiota modulation and subsequent intestinal epithelial cell regeneration in an experimental colitis model.
View Article and Find Full Text PDFBackground: De-novo-designed synthetic transcriptional regulators have great potential as the genetic parts for constructing complex multilayered gene circuits. The design flexibility afforded by advanced nucleic acid sequence design tools vastly expands the repertoire of regulatory elements for circuit design. In principle, the design space of synthetic regulators should allow for the construction of regulatory circuits of arbitrary complexity; still, the orthogonality and robustness of such components have not been fully elucidated, thereby limiting the depth and width of synthetic circuits.
View Article and Find Full Text PDFBiochim Biophys Acta Mol Cell Res
December 2024
Obesity is recognized as a significant contributor to the onset of kidney disease. However, the key processes involved in the development of kidney disease in obese individuals are not well understood. Here, we investigated the effects of high-fat diet (HFD)-induced obesity on folic acid (FA)-induced kidney injury in mice.
View Article and Find Full Text PDFOxidative stress plays a crucial role in the development and progression of various kidney diseases. Nuclear factor erythroid 2-related factor 2 (NRF2) is the primary transcription factor that protects cells from oxidative stress by regulating cytoprotective genes including those involved in the antioxidant glutathione (GSH) pathway. GSH maintains cellular redox status and affects redox signaling, cell proliferation, and cell death.
View Article and Find Full Text PDFJ Nutr Biochem
December 2024
Int Immunopharmacol
November 2024
Turmeric (Curcuma longa L.) extract (CLE) has been shown to elicit several pharmacological properties and is widely used in Asian traditional medicine. Herein, we assessed the impact of CLE on airway inflammation in BALB/c mice and A549 cells to clarify the underlying mechanism.
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