A site-specific oxidation of (sp)C-C(sp) and (sp)C-H bonds in aryl alkanes by the use of NaNO/HCl was explored. The method is chemical-oxidant-free, transition-metal-free, uses water as the solvent, and proceeds under mild conditions, making it valuable and attractive to synthetic organic chemistry.
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http://dx.doi.org/10.1021/acs.orglett.1c01303 | DOI Listing |
Alzheimers Dement
December 2024
Neuroscience Graduate Program, Weill Cornell Medicine, New York, NY, USA.
Background: Mitochondrial reactive oxygen species (mROS), such as superoxide and hydrogen peroxide (HO), are implicated in aging-associated neurological disorders, including Alzheimer's Disease and frontotemporal dementia. Mitochondrial complex III of the respiratory chain has the highest capacity for mROS production and generates mROS toward the cytosol, poising it to regulate intracellular signaling and disease mechanisms. However, the exact triggers of complex III-derived ROS (CIII-ROS), its downstream molecular targets, and its functional roles in dementia-related pathogenesis remain unclear.
View Article and Find Full Text PDFJ Mater Chem B
January 2025
Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China.
Cardiovascular diseases (CVDs) are the foremost cause of mortality worldwide, with incidence and mortality rates persistently climbing despite extensive research efforts. Innovative therapeutic approaches are still needed to extend patients' lives and preserve their health. In the present study, novel supramolecular nanomedicine with both nitric oxide (NO) and antioxidant releasing ability was developed to enhance therapeutic efficacy against vascular injuries.
View Article and Find Full Text PDFJ Agric Food Chem
January 2025
Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States.
, an environmental bacterium, holds promise as a biocontrol agent due to its ability to produce bioactive compounds effective against plant pathogens, such as fungi, oomycetes, and Gram-positive bacteria. However, it lacks activity against Gram-negative bacteria. To address this, we applied new genetic tools to manipulate the phenazine biosynthetic gene cluster () from , converting to a robust producer of phenazine antibiotics.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan.
The present study aims to develop a novel thiolated carboxymethyl cellulose (CMC-SH) by the addition of aldehyde groups via oxidation followed by reductive amination and then develop CMC-SH based pH-responsive hydrogel by free radical polymerization approach while assessing its mucoadhesive and permeation-enhancing capabilities. By in-vitro characterization, the intended compound's chemical composition, thermal stability, and amorphous nature were analyzed for CMC-SH polymer. Ellman's assay was utilized to estimate the thiol content and permeation analysis was performed to evaluate its enhanced permeability characteristics.
View Article and Find Full Text PDFEnviron Microbiome
December 2024
Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STeBiCeF), University of Palermo, Palermo, Italy.
Background: 1,2-dichloroethane (1,2-DCA) biodegradation can occur through aerobic or anaerobic pathways that can be exploited in bioremediation strategies. Bioremediation interventions are site specific and generally based on anaerobic pathways, nevertheless expanding knowledge on proper conditions favoring the biodegradation and especially on 1,2-DCA degrading microorganisms is crucial. In this work the intrinsic biodegradation potential of an aquifer impacted by Chlorinated Aliphatic Hydrocarbons (mainly 1,2-DCA) was evaluated by characterizing the aquifer microbiome across space and time and by setting up biostimulation treatments in microcosms under different aerobic and anaerobic conditions, in parallel.
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