Anodic Activation of Prussian Blue Analog Leads to Highly Active Cobalt-Doped Nickel (Oxy)Hydroxide for Organic Oxidation Reactions.

Water-assisted electrocatalytic oxidation of alcohols into valuable chemicals is a promising strategy to circumvent the sluggish kinetics of water oxidation, while also reducing cell voltage and improving energy efficiency. Recently, transition metal (TM)-based catalysts have been investigated for anodic alcohol oxidation, but success has been limited due to competition from the oxygen evolution reaction (OER) within the working regime. In this study, NiCo-based Prussian blue analog (PBA) was electrochemically activated at the anodic potential to produce a Co-Ni(O)OH active catalyst with a nanosheet-like architecture.

Prolonged Immunomodulator Delivery Boosts Monocyte Exosome Secretion and Elevates Cathelicidin/LL-37 Content.

Human cathelicidin LL-37 offers significant benefits to the immune system and in treating various diseases, but its therapeutic potential is hindered by low activity and instability in physiological environments. Here, we introduce a strategy to boost LL-37 levels in exosomes derived from THP-1 monocytes by incubating cells with electrospun nanofibers containing immunomodulators (e.g.

Ni(II)-Dithiocarbamate and -diphosphine coordination complexes as pre-catalysts for electrochemical OER activity.

Electrochemical water oxidation holds immense potential for sustainable energy generation, splitting water into clean-burning hydrogen and life-giving oxygen. However, a key roadblock lies in the sluggish nature of the oxygen evolution reaction (OER). Finding stable, cost-effective, and environmentally friendly catalysts with high OER efficiency is crucial to unlock this technology's full potential.

Effects of Conjugated Linoleic Acid (CLA) Supplementation and Exposure of Cigarette Smoke on Bcl-2, P53 Protein, and TNF-α Expression in the Epitels of Wistar Rats (Rattus Norvegicus) Bladder.

To determine the effect of Conjugated Linoleic Acid (CLA) supplementation on Bcl-2, P53 protein and TNF- α expression in the bladder of rats which is exposed to cigarette smoke.

Methods: The study is a true experimental in Wistar rats. Sample was divided into 4 groups: group A had a 0.

Axial ligand-induced high electrocatalytic hydrogen evolution activity of molecular cobaloximes in homo- and heterogeneous medium.

Three new molecular cobaloxime complexes with the general formula [ClCo(dpgH)L] (1-3), where L1 = -(4-pyridylmethyl)-1,8-naphthalimide, L2 = 4-bromo--(4-pyridylmethyl)-1,8-naphthalimide, L3 = 4-piperidin--(4-pyridylmethyl)-1,8-naphthalimide, have been synthesized and characterized by UV-Vis, multinuclear NMR, FT-IR and PXRD spectroscopic techniques. The crystal structures of all complexes have also been reported. The electrocatalytic activity of complexes is investigated under two catalysis conditions: (i) homogeneous conditions in acetonitrile using acetic acid (AcOH) as a proton source and (ii) heterogeneous conditions upon immobilization onto the surface of activated carbon cloth (CC).

Hyalomma marginatum - A silent stowaway after vacation at the Adriatic Sea.

Hyalomma marginatum is an invasive tick species capable of transmitting pathogens that cause severe diseases such as Crimean-Congo hemorrhagic fever. In Austria, H. marginatum occurs sporadically, and migratory birds are believed to bring H.

Visible light-driven molecular oxygen activation for oxidative amidation of alcohols using lead-free metal halide perovskite.

Herein, we report the modulation of the band structures of halide perovskite CsCuBr by tuning the synthesis methods. The photocatalyst PC-1, synthesized by the hot injection method, has a more negative conduction band minima (CBM) than the photocatalyst PC-2, synthesized at room temperature. As a result, PC-1 can activate molecular O more efficiently to initiate the radical-mediated dehydrogenation of alcohols.

Structural modification of nickel tetra(thiocyano)corroles during electrochemical water oxidation.

In this study, we present two fully characterized nickel tetrathiocyanocorroles, representing a novel class of 3d-metallocorroles. These nickel(II) ions form square planar complexes, exhibiting a d-electronic configuration. These anionic complexes are stabilized by the electron-withdrawing SCN groups on the bipyrrole unit of the corrole.

Deciphering charge transfer dynamics of a lead halide perovskite-nickel(ii) complex for visible light photoredox C-N coupling.

Photoredox catalysis involving perovskite quantum dots (QDs) has gained enormous attention because of their high efficiency and selectivity. In this study, we have demonstrated CsPbBr QDs as photocatalysts for the C-N bond formation reaction. The introduction of Ni(dmgH) (dmgH = dimethyl glyoximato) as a cocatalyst with CsPbBr QDs facilitates photocatalytic C-N coupling to form a wide variety of amides.

Nitrate-coordinated FeNi(OH) for hydrazine oxidation assisted seawater splitting at the industrial-level current density.

In this study, we developed a nitrate-coordinated iron-nickel hydroxide [N-FeNi(OH)] catalyst for hydrazine oxidation-assisted seawater splitting. Replacement of O evolution by hydrazine oxidation in a two-electrode setup resulted in a cell voltage of 1.20 V at 100 mA cm.

Biological Effects of CYP11A1-Derived Vitamin D and Lumisterol Metabolites in the Skin.

Novel pathways of vitamin D3, lumisterol 3 (L3), and tachysterol 3 (T3) activation have been discovered, initiated by CYP11A1 and/or CYP27A1 in the case of L3 and T3. The resulting hydroxymetabolites enhance protection of skin against DNA damage and oxidative stress; stimulate keratinocyte differentiation; exert anti-inflammatory, antifibrogenic, and anticancer activities; and inhibit cell proliferation in a structure-dependent manner. They act on nuclear receptors, including vitamin D receptor, aryl hydrocarbon receptor, LXRα/β, RAR-related orphan receptor α/γ, and peroxisome proliferator-activated receptor-γ, with selectivity defined by their core structure and distribution of hydroxyl groups.

Malignant Melanoma: An Overview, New Perspectives, and Vitamin D Signaling.

Melanoma, originating through malignant transformation of melanin-producing melanocytes, is a formidable malignancy, characterized by local invasiveness, recurrence, early metastasis, resistance to therapy, and a high mortality rate. This review discusses etiologic and risk factors for melanoma, diagnostic and prognostic tools, including recent advances in molecular biology, omics, and bioinformatics, and provides an overview of its therapy. Since the incidence of melanoma is rising and mortality remains unacceptably high, we discuss its inherent properties, including melanogenesis, that make this disease resilient to treatment and propose to use AI to solve the above complex and multidimensional problems.

Genotypic cluster analysis of reveals a spectrum of sexual mixing including among HIV-serodiscordant men who have sex with men.

Background: Men who have sex with men (MSM) are more vulnerable to acquiring sexually transmitted infections (STIs). In 2019, for instance, 74% of European (Ng) cases among males affected MSM. A recent report by the World Health Organization showed that most of the 2020' interim targets to end STIs by 2030 had not been met.

Genomic surveillance of SARS-CoV-2 evolution by a centralised pipeline and weekly focused sequencing, Austria, January 2021 to March 2023.

BackgroundThe COVID-19 pandemic was largely driven by genetic mutations of SARS-CoV-2, leading in some instances to enhanced infectiousness of the virus or its capacity to evade the host immune system. To closely monitor SARS-CoV-2 evolution and resulting variants at genomic-level, an innovative pipeline termed SARSeq was developed in Austria.AimWe discuss technical aspects of the SARSeq pipeline, describe its performance and present noteworthy results it enabled during the pandemic in Austria.

Superior electrocatalytic hydrogen evolution activity of a triply bridged diruthenium(II) complex on a carbon cloth support.

This article describes the structural authentication of a unique triply bridged [1](ClO) and monomeric [2]ClO/[3]ClO. Electrochemical HER on a carbon cloth support demonstrated the superior performance of [1](ClO) with high TON (>10) and its long-term stability. The primary kinetic isotope effect of [1](ClO) revealed the involvement of PCET in the rate-determining step.

Dual-Mode Virus Detection: Combining Electrochemical and Fluorescence Modalities for Enhanced Sensitivity and Reliability.

This study introduces a dual-mode biosensor specifically designed for the quantitative detection of viruses in rapid analysis. The biosensor is unique in its use of both optical (fluorescence) and electrochemical (impedance) detection methods using the same nanocomposites, providing a dual confirmation system for virus (norovirus-like particles) quantification. The system is based on using two antibody-conjugated nanocomposites: CdSeS quantum dots and Au-N,S-GQD nanocomposites.

Comparison of a multiplex PCR with DNA barcoding for identification of container breeding mosquito species.

Background: Identification of mosquitoes greatly relies on morphological specification. Since some species cannot be distinguished reliably by morphological methods, it is important to incorporate molecular techniques into the diagnostic pipeline. DNA barcoding using Sanger sequencing is currently widely used for identification of mosquito species.

Recurrent, ICD-associated L. monocytogenes bacteraemia with multiple septic pulmonary embolisms over a 2-year period.

Background: Listeria monocytogenes is a bacterial pathogen known for causing listeriosis, a foodborne illness with a wide spectrum of clinical presentations ranging from mild gastroenteritis to severe invasive disease, particularly affecting immunocompromised individuals, pregnant women, newborns, and the elderly. Successful treatment of patients with recurring listeria episodes due to colonised foreign material is often challenging, typically requiring a combination of antimicrobial treatment and surgical removal.

Case Presentation: Here, we present a particularly complex case of chronic invasive listeriosis with a total of six relapses.

The low loading of metal in metal-organic framework-derived NiN@NC promotes amide formation through C-N coupling.

The pyrolysis of Ni-substituted zeolitic imidazolate framework-8 produces NiN@NC with an ultra-low loading of Ni (7.4 × 10 mol%). The Ni-N coordination, subnanometer particle size, and uniform distribution of NiN on the NC support lead to excellent catalytic activity (TON = 2702) and selectivity for the amination of aldehydes to produce amides.

The isomer-sensitive electrochemical HER of ruthenium(II)-hydrido complexes involving redox-active azoheteroaromatics.

The article deals with the development of isomeric ruthenium(II)-hydrido complexes [Ru(H)(L1)(PPh)(CO)]ClO ([1a]ClO-[1b]ClO)/[Ru(H)(L2)(PPh)(CO)]ClO ([2a]ClO-[2b]ClO) involving azo coupled L1 [L1: ()-1,2-bis(1-methyl-1-pyrazol-3-yl)diazene]/L2 [L2: ()-1,2-bis(4-iodo-1-methyl-1-pyrazol-3-yl)diazene], respectively. Structural evaluation of the complexes affirmed the conformation of the coordinated/uncoordinated pyrazole groups of L and its unperturbed neutral azo (NN) state. Isomeric forms in [1a]ClO/[1b]ClO or [2a]ClO/[2b]ClO differed with respect to the and orientations of the coordinated CO and N(azo) donor of L, respectively.

A citizen science report-Tiger mosquitoes (Aedes albopictus) in allotment gardens in Graz, Styria, Austria.

Aedes albopictus, the Asian tiger mosquito, is an invasive species not native to Europe. Due to its ability to transmit pathogens, such as dengue, chikungunya and Zika viruses, Ae. albopictus is considered a major health threat.

Metal-organic framework-derived CoN nanoparticles on N-doped carbon for selective -alkylation of aniline.

-alkylation of anilines by alcohols can be used as an efficient strategy to synthesise a wide range of secondary amines. In this respect, a hydrogen borrowing methodology has been explored using precious metal-based catalysts. However, the utilisation of cheap and readily available transition metal based catalysts is required for large-scale applications.

C-H Bond Activation by an Antimony(V) Oxo Intermediate Accessed through Electrochemical Oxidation of Antimony(III) Tetrakis(thiocyano)corrole.

A new class of antimony(III) corroles has been described. The photophysical properties of these newly synthesized tetrakis(thiocyano)corrolatoantimony(III) derivatives having four SCN groups on the bipyrrole unit of corrole are drastically altered compared to their β-unsubstituted corrolatoantimony(III) analogues. The UV-vis and emission spectra of tetrakis(thiocyano)corrolatoantimony(III) derivatives are significantly red-shifted (roughly 30-40 nm) in comparison with their β-unsubstituted corrolatoantimony(III) derivatives.