NaBSiSe: a novel B-cluster-containing quaternary selenoborate framework material.

We report the successful synthesis of the new quaternary, three-dimensional NaSiBSe material using a solid-state synthesis route. This compound is characterized by a unique framework structure that features the rare icosahedral [B] cation which is connected SiSe polyhedral units into a 3D framework structure with Na ions located inside the channels. The NaSiBSe compound crystallizes in the cubic crystal system in the space group 3̄, with lattice parameter = 11.

Synthesis, Optical, and Magnetic Properties of the Mixed Chalcogenide Semiconductor Series Eu(II)SiSeS, Prepared via the Flux-Assisted Boron Chalcogen Mixture Method.

We report a detailed structural study of a series of five new quaternary Eu(II)-containing mixed chalcogenide phases, EuSiSeS, EuSiSeS, EuSiSeS, EuSiSeS, and EuSiSe, synthesized using the flux-assisted boron chalcogen mixture (BCM) method. High-quality crystals were grown, and their crystal structures were determined by single-crystal X-ray diffraction. All members of the EuSiSeS series crystallize in the monoclinic crystal system with space group 2/, except EuSiSe, which crystallizes in the 2 space group.

Microresonator photonic wire bond integration for Kerr-microcomb generation.

Extremely high-Q microresonators provide an attractive platform for a plethora of photonic applications including optical frequency combs, high-precision metrology, telecommunication, microwave generation, narrow linewidth lasers, and stable frequency references. Moreover, the desire for compactness and a low power threshold for nonlinear phenomena have spurred investigation into integrated and scalable solutions. Historically, crystalline microresonators with Q ∼ 10 were one of the first material platforms providing unprecedented optical performance in a small form factor.

LiaR-dependent gene expression contributes to antimicrobial responses in group A .

The ability to sense and respond to host defenses is essential for pathogen survival. Some mechanisms involve two-component systems (TCSs) that respond to host molecules, such as antimicrobial peptides (AMPs), and activate specific gene regulatory pathways to aid in survival. Alongside TCSs, bacteria coordinate cell division proteins, chaperones, cell wall sortases, and secretory translocons at discrete locations within the cytoplasmic membrane, referred to as functional membrane microdomains (FMMs).

Exposure to per- and polyfluoroalkyl substances (PFAS) in North Carolina homes: results from the indoor PFAS assessment (IPA) campaign.

Per and polyfluoroalkyl substances (PFAS) are ubiquitous in the indoor environment, resulting in indoor exposure. However, a dearth of concurrent indoor multi-compartment PFAS measurements, including air, has limited our understanding of the contributions of each exposure pathway to residential PFAS exposure. As part of the Indoor PFAS Assessment (IPA) Campaign, we measured 35 neutral and ionic PFAS in air, settled dust, drinking water, clothing, and on surfaces in 11 North Carolina homes.