Advancing nonlinear optics: discovery and characterization of new non-centrosymmetric phenazine-based halides.

Organic-inorganic metal halides (OIMHs) have drawn considerable attention due to their remarkable optoelectronic properties and substantial promise for nonlinear optical applications. In this research, phenazine has been selected as the organic cation because of its π-conjugated feature. Three compounds, (CHN)PbCl, (CHN)SbCl, and (CHN)InBr·Br, were synthesized.

High External Quantum Efficiency and Dual-Band Emission of (CHN)SbCl for Sensitivity Temperature Sensing.

Organic-inorganic hybrid halides have gained attention for their ease of processing and remarkable optoelectronic properties. However, the relationship between the structure and optical properties requires further exploration. In this study, the butyltrimethylammonium cation (CHN) was chosen, and seven compounds were synthesized: (CHN)SbX (X = Cl, Br), (CHN)BiX (X = Cl, Br, I), and (CHN)(CHN)MBr (M = Sb, Bi).

Fine-Tuning Optoelectronic Features in Organic-Inorganic Hybrid Metal Halides: A Focus on the Phenylbutanammonium Series.

Extensive research has been dedicated to exploring the potential applications of organic-inorganic hybrid metal halides in optoelectronics. This study presents findings on three metal halides based on phenylbutanammonium (PBA). Specifically, (PBA)MnBr(HO) and (PBA)Sn(IV)Cl exhibit zero-dimensional structures with 2/ and space groups, respectively, while (PBA)Sn(II)Br features a two-dimensional structure with 1̅ space group.

Establishment and validation of a prediction model for nonrecovery of left ventricular ejection fraction in acute myocardial infarction patients combined with decreased left ventricular ejection fraction.

Background: This study aimed to investigate the risk factors for nonrecovery of left ventricular ejection fraction (LVEF) during follow-up in patients with acute myocardial infarction (AMI) who underwent percutaneous coronary intervention (PCI) combined with reduced LVEF, and establish and verify a risk prediction model based on these factors.

Methods: In this study, patients with AMI who underwent PCI in a high-volume PCI center between December 2018 and December 2021 were consecutively enrolled, screened, and randomly assigned to the model establishment and validation cohorts. A predictive model method based on least absolute shrinkage and selection operator regression was used for establishment and validation.

Zero-Dimensional Halides with ns Electron (Sb) Activation to Generate Broad Photoluminescence.

Organic-inorganic metal halides (OIMHs) have various crystal structures and offer excellent semiconducting properties. Here, we report three novel OIMHs, (PPA)InBr (PPA = [CH(CH)NH]), (PBA)SbBr, and (PBA)SbI (PBA = [CH(CH)NH]), showing typical zero-dimensional (0D) structure, octahedra dimers, and corner-sharing one-dimensional chains and crystallized in the monoclinic system with 2, 2/, and 2/ space groups, respectively. (PPA)InBr, (PBA)SbBr, and (PBA)SbI have experimental optical band gaps of ∼3.

Second harmonic generation from symmetry breaking stimulated by mixed organic cations in zero-dimensional hybrid metal halides.

Mixing cations with different chemical properties to induce the generation of asymmetric structures is a new approach for tuning the optical properties of hybrid organic-inorganic metal halides (HOIMHs). In this study, zero-dimensional (CNH)(CHSO)MBr (M = Bi/Sb, [CNH] = [(CNH)(CNH)] and [CHSO] = [CH(CH)OS(CH)]) are synthesized. Two different cations cause both compounds to crystallize in the polar space group 222, thus resulting in significant phase matchable second harmonic generation under a 1064 nm laser excitation.

A Case Report of IPEX Syndrome with Neonatal Diabetes Mellitus and Congenital Hypothyroidism as the Initial Presentation, and a Systematic Review of neonatal IPEX.

Immune dysregulation, polyendocrinopathy, enteropathy, X-linked syndrome (IPEX) is a serious disorder, which may comprise diabetes, thyroid disease, enteropathy, cytopenias, eczema, and other multi-system autoimmune dysfunction features. IPEX syndrome is caused by mutations in the forkhead box P3 (FOXP3) gene. Here, we report the clinical manifestations of a patient with IPEX syndrome onset in the neonatal period.

Hyperoxia-induced lung injury increases CDKN1A levels in a newborn rat model of bronchopulmonary dysplasia.

Bronchopulmonary dysplasia (BPD) is a common, chronic lung disease of infants. Presently, high oxygen exposure and mechanical ventilation considerably influence the development of BPD. To clarify the pathological mechanisms of this disease, we developed a hyperoxia-induced BPD rat model and investigated the role of CDKN1A in the pathogenesis of BPD.

Vitamin D/VDR signaling attenuates lipopolysaccharide‑induced acute lung injury by maintaining the integrity of the pulmonary epithelial barrier.

Vitamin D and its receptor have a protective effect on epithelial barriers in various tissues. Low levels of vitamin D are associated with numerous pulmonary diseases, including acute lung injury (ALI) and acute respiratory distress syndrome. The present study investigated whether the vitamin D/vitamin D receptor (VDR) pathway may ameliorate lipopolysaccharide (LPS)‑induced ALI through maintaining the integrity of the alveolar epithelial barrier.

Antibacterial activities of novel diselenide-bridged bis(porphyrin)s on Staphylococcus aureus investigated by microcalorimetry.

The actions of two novel diselenide-bridged bis(porphyrin)s (1 and 2) on Staphylococcus aureus growth was investigated by microcalorimetry at 37.00 degrees C, compared with that of Na2SeO3. Differences in their capacities to inhibit the growth metabolism of S.