Photocatalytic-Driven Antiviral Activities of Heterostructured BiOClBr - BiOBr Semiconductors.

Numerous methods for eliminating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are being extensively examined in recent years as a result of the COVID-19 pandemic and its adverse effects on society. Photocatalysis is among the most encouraging solutions since it has the capacity to fully annihilate pathogens, surpassing conventional disinfecting methods. A heterostructured photocatalytic composite of (70%W BiOClBr with 30%W BiOBr) was prepared via a simple synthetic route that yielded microspheres ∼3-4 μm in diameter.

Remote Photocatalytic Eradication of Biorecalcitrant Microorganisms via BiOClBr-The Applied Aspects of Visible Light-Driven Photocatalysis.

Photocatalysis has an exceptional capacity to eliminate a wide range of harmful microorganisms and is proven to be superior over commonly used disinfection methods. A visible light-induced photocatalyst, the BiOClBr@gypsum hybrid composite, composed of microspheres (∼3 μm) molded with a gypsum composite as a honeycomb-shaped filter was proven to inactivate a large selection of bacteria including , and via remote photocatalysis. The chemical composition and morphology of the composite were unveiled with the help of scanning electron microscopy, transmission electron microscopy, N sorption, Fourier transform infrared spectroscopy, diffuse reflectance spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy.

The Bacterial Extracellular Matrix Protein TapA Is a Two-Domain Partially Disordered Protein.

Biofilms are aggregates of microbial cells that form on surfaces and at interfaces, and are encased in an extracellular matrix. In biofilms made by the soil bacterium Bacillus subtilis, the protein TapA mediates the assembly of the functional amyloid protein TasA into extracellular fibers, and it anchors these fibers to the cell surface. We used circular dichroism and NMR spectroscopy to show that, unlike the structured TasA, TapA is disordered.

Bacterial Model Membranes Reshape Fibrillation of a Functional Amyloid Protein.

Biofilms are aggregates of cells that form surface-associated communities. The cells in biofilms are interconnected with an extracellular matrix, a network that is made mostly of polysaccharides, proteins, and sometimes nucleic acids. Some extracellular matrix proteins form fibers, termed functional amyloid or amyloid-like, to differentiate their constructive function from disease-related amyloid fibers.