Atomic-Level Structure of the Organic-Inorganic Interface of Colloidal ZnO Nanoplatelets from Dynamic Nuclear Polarization-Enhanced NMR.

Colloidal semiconductor nanoplatelets (NPLs) have emerged as a new class of nanomaterials that can exhibit substantially distinct optical properties compared to those of isotropic quantum dots, which makes them prime candidates for new-generation optoelectronic devices. Insights into the structure and anisotropic growth of NPLs can offer a blueprint for their controlled fabrication. Here, we present an atomic-level investigation of the organic-inorganic interface structure in ultrathin and stable benzamidine ()-supported ZnO NPLs prepared by the modified ne-pot elf-upporting rganoetallic approach.

Alterations in plasma proteome during acute COVID-19 and recovery.

Background: The severe course of COVID-19 causes cardiovascular injuries, although the mechanisms involved are still not fully recognized, linked, and understood. Their characterization is of great importance with the establishment of the conception of post-acute sequelae of COVID-19, referred to as long COVID, where blood clotting and endothelial abnormalities are believed to be the key pathomechanisms driving circulatory system impairment.

Methods: The presented study investigates temporal changes in plasma proteins in COVID-19 patients during hospitalization due to SARS-CoV-2 infection and six months after recovery by targeted SureQuant acquisition using PQ500 panel.

Chromium(II)-isophthalate 2D MOF with Redox-Tailorable Gas Adsorption Selectivity.

Redox-active metal-organic frameworks (MOFs) are very promising materials due to their potential capabilities for postsynthetic modification aimed at tailoring their application properties. However, the research field related to redox-active MOFs is still relatively underdeveloped, which limits their practical application. We investigated the self-assembly process of Cr(II) ions and isophthalate (m-bdc) linkers, which have been previously demonstrated to yield 0D metal-organic polyhedra.

Fresh Impetus in the Chemistry of Calcium Peroxides.

Redox-inactive metal ions are essential in modulating the reactivity of various oxygen-containing metal complexes and metalloenzymes, including photosystem II (PSII). The heart of this unique membrane-protein complex comprises the MnCaO cluster, in which the Ca ion acts as a critical cofactor in the splitting of water in PSII. However, there is still a lack of studies involving Ca-based reactive oxygen species (ROS) systems, and the exact nature of the interaction between the Ca center and ROS in PSII still generates intense debate.

Unprecedented Richness of Temperature- and Pressure-Induced Polymorphism in 1D Lead Iodide Perovskite.

Inherent features of metal halide perovskites are their softness, complex lattice dynamics, and phase transitions spectacularly tuning their structures and properties. While the structural transformations are well described and classified in 3D perovskites, their 1D analogs are much less understood. Herein, both temperature- and pressure-dependent structural evolutions of a 1D AcaPbI perovskitoid incorporating acetamidinium (Aca) cation are examined.

Prognostic accuracy of mean arterial pressure and serum lactate level in patients with acute myocardial infarction.

Background: Mean arterial pressure (MAP) can be used to evaluate macro-circulatory perfusion while serum lactate concentration is a marker of tissue perfusion. It is important to note that the primary objective of initial medical interventions is to restore microcirculatory perfusion rather than focusing solely on macro-hemodynamics.

Aims: We aimed to investigate the prognostic value of the combination of MAP and serum lactate levels measured on admission to the hospital in relation to patients' 30-day survival rate in patients with acute myocardial infarction (MI).

Synthesis, polymorphism, and shape complementarity-induced co-crystallization of hexanuclear Co(II) clusters capped by a flexible heteroligand shell.

Polymorphism and co-crystallization have gradually gained attention as new tools in the development of modern crystalline functional materials. However, the study on the selective self-assembly of metal clusters into multicomponent crystals is still in its infancy. Herein, we present the synthesis and characterization of two new heteroleptic hydroxido-acetato and acetato Co(II) clusters [Co(OH)(OAc)()] (1) and [Co(OAc)()] (2) incorporating auxiliary 2-pyrrolidinoethoxylate () ligands.

Serial echocardiographic evaluation of COVID-19 patients without prior history of structural heart disease: a 1-year follow-up CRACoV-HHS study.

Background: It is a well-known fact that COVID-19 affects the cardiovascular system by exacerbating heart failure in patients with preexisting conditions. However, there is a poor insight into the cardiovascular involvement and sequelae in patients without preexisting conditions. The aim of the study is to analyse the influence of COVID-19 on cardiac performance in patients without prior history of structural heart disease.

The role of stress hyperglycemia and hyperlactatemia in non-diabetic patients with myocardial infarction treated with percutaneous coronary intervention.

Background: Stress hyperglycemia and lactates have been used separately as markers of a severe clinical condition and poor outcomes in patients with myocardial infarction (MI). However, the interplay between glucose and lactate metabolism in patients with MI have not been sufficiently studied. The aim in the present study was to examine the relationship of glycemia on admission (AG) and lactate levels and their impact on the outcome in non-diabetic MI patients treated with percutaneous coronary intervention (PCI).

Prevalence and clinical implications of atrial fibrillation in patients hospitalized due to COVID-19: Data from a registry in Poland.

Background: Atrial fibrillation (AF) is a common arrhythmia with increasing prevalence with respect to age and comorbidities. AF may influence the prognosis in patients hospitalized with Coronavirus disease 2019 (COVID-19). We aimed to assess the prevalence of AF among patients hospitalized due to COVID-19 and the association of AF and in-hospital anticoagulation treatment with prognosis.

Characteristics, Mortality, and Clinical Outcomes of Hospitalized Patients with COVID-19 and Diabetes: A Reference Single-Center Cohort Study from Poland.

Background: Diabetes is a risk factor for a severe course of COVID-19. We evaluated the characteristics and risk factors associated with undesirable outcomes in diabetic patients (DPs) hospitalized due to COVID-19.

Materials And Methods: The data analysis of patients admitted between March 6, 2020, and May 31, 2021, to the University Hospital in Krakow (Poland), a reference center for COVID-19, was performed.

Short- and long-term survival of patients hospitalized for COVID-19 in relation to cardiovascular risk factors and established cardiovascular disease: the Cor-Cardio study.

Introduction: The clinical presentation of COVID‑19 may range from asymptomatic infection to severe disease. Previous studies reported a relationship between the course of COVID‑19 and a history of cardiovascular (CV) disease (CVD).

Objectives: We aimed to analyze the influence of CV risk factors, established CVD, and treatment with CV drugs on short- and long‑term survival in patients hospitalized for COVID‑19.

Factors controlling the structure of alkylzinc amidinates: on the role of -substituents.

Despite various applications of alkylzinc complexes supported by ,-bidentate ligands in chemistry and materials science, the corresponding organozinc amidinates still represent an insufficiently explored area. To gain a more in-depth understanding of factors controlling the structure and stability of alkylzinc amidinates, we selected benzamidinate and ,'-diphenylformamidinate ligands as model ,'-unsubstituted and ,'-diaryl substituted ligands, respectively, to systematically modify the secondary coordination sphere of the Zn center. A series of new alkylzinc amidinates has been synthesized and their molecular structures identified in both the solid state (single-crystal X-ray crystallography) and solution (NMR and FTIR spectroscopy).

Non-redox reactivity of V(II) and Fe(II) formamidinates towards CO resulting in the formation of novel M(II) carbamates.

Chemical fixation of CO is a powerful tool for the preparation of novel multinuclear metal complexes and functional materials. Particularly, the insertion of CO into a metal-X bond (X = H, C, N, O) often is a key elementary step in the various processes transforming this greenhouse gas into valuable products. Herein, we report on the reactivity between CO and V(II) and Fe(II) complexes supported by ,'-bis(2,6-diisopropylphenyl)formamidinate ligands (DippF).

Impact of concomitant COVID-19 on the outcome of patients with acute myocardial infarction undergoing coronary artery angiography.

Background: The impact of COVID-19 on the outcome of patients with MI has not been studied widely. We aimed to evaluate the relationship between concomitant COVID-19 and the clinical course of patients admitted due to acute myocardial infarction (MI).

Methods: There was a comparison of retrospective data between patients with MI who were qualified for coronary angiography with concomitant COVID-19 and control group of patients treated for MI in the preceding year before the onset of the pandemic.

Impact of Arterial Hypertension and Use of Antihypertensive Pharmacotherapy on Mortality in Patients Hospitalized due to COVID-19: The CRACoV-HHS Study.

Background: Cardiovascular diseases including arterial hypertension are common comorbidities among patients hospitalized due to COVID-19. We assessed the influence of preexisting hypertension and its pharmacological treatment on in-hospital mortality in patients hospitalized with COVID-19.

Methods: We studied all consecutive patients who were admitted to the University Hospital in Krakow, Poland, due to COVID-19 between March 2020 and May 2021.

The role of artificial intelligence technology analysis of high-resolution computed tomography images in predicting the severity of COVID-19 pneumonia.

Introduction: High-resolution computed tomography (HRCT) is usually used only for qualitative analysis of COVID-19 pneumonia. However, when coupled with artificial intelligence (AI) it can also automatically provide quantitative data.

Objectives: The purpose of the study was to analyze the role of automatic assessment of COVID‑19 pneumonia severity on HRCT images by AI technology.

[Ocena związku stężenia kwasu moczowego z przebiegiem zakażenia SARS-CoV-2].

Unlabelled: The disease caused by the SARS-CoV-2 (COVID-19) is currently one of the leading causes of hospitalization and death. It has been shown that early assessment of selected laboratory parameters: blood count parameters, concentration of protein C (CRP), D-dimers, ferritin, cardiac troponins or interleukin 6 (IL-6) in patients hospitalized due to COVID- 19 may facilitate predicting its severe course. However, the relationship between uric acid (UA) levels and the prognosis in COVID-19 is unclear.

Comparison between COVID‑19 outcomes in the first 3 waves of the pandemic: a reference hospital report.

Introduction: The course of consecutive COVID‑19 waves was influenced by medical and organizational factors.

Objectives: We aimed to assess the outcomes of patients hospitalized for COVID‑19 during the first 3 waves of the pandemic.

Patients And Methods: We performed a retrospective analysis of medical records of all COVID‑19 patients admitted to the University Hospital in Kraków, Poland, a designated COVID‑19 hospital in Małopolska province, between March 1, 2020 and May 31, 2021.

Tetrahedral M(μ-O) Motifs Beyond Zn: Efficient One-Pot Synthesis of Oxido-Amidate Clusters a Transmetalation/Hydrolysis Approach.

While zinc μ-oxido-centered complexes are widely used as versatile precursors and building units of functional materials, the synthesis of their analogues based on other transition metals is highly underdeveloped. Herein, we present the first efficient systematic approach for the synthesis of homometallic [M(μ-O)L]-type clusters incorporating divalent transition-metal centers, coated by bridging monoanionic organic ligands. As a proof of concept, we prepared a series of charge-neutral metal-oxido benzamidates, [M(μ-O) (NHCOPh)] (M = Fe, Co, Zn), including iron(II) and cobalt(II) clusters not accessible before.

Mechanochemical vs Wet Approach for Directing CO Capture toward Various Carbonate and Bicarbonate Networks.

The distinct research areas related to CO capture and mechanochemistry are both highly attractive in the context of green chemistry. However, merger of these two areas, , mechanochemical CO capture, is still in an early stage of development. Here, the application of biguanidine as an active species for CO capture is investigated using both solution-based and liquid-assisted mechanochemical approaches, which lead to a variety of biguanidinium carbonate and bicarbonate hydrogen-bonded networks.

A New Look at Molecular and Electronic Structure of Homoleptic Diiron(II,II) Complexes with N,N-Bidentate Ligands: Combined Experimental and Theoretical Study.

Paddlewheel-type binuclear complexes featuring metal-metal bonding have been the subject of widespread interest due to fundamental concern in their electronic structures and potential applications. Here, we explore the molecular and electronic structures of diiron(II,II) complexes with N,N'-diarylformamidinate ligands. While a paddlewheel-type diiron(II,II) complex with N,N'-diphenylformamidinate ligands (DPhF) exhibits the centrosymmetric [Fe (μ-DPhF) ] structure, a minor alteration in the ligand system, i.