Study of the pH effects on water-oil-illite interfaces by molecular dynamics.

Illite mineral is present in shale rocks, and its wettability behavior is significant for the oil and gas industry. In this work, the pH effects on the affinity between the (001) and (010) crystallographic planes of illite K(SiAl)(AlMg)O(OH) and direct and inverse emulsions were studied using molecular dynamics simulations. To develop the simulations, an atomistic model of illite was constructed following Löwenstein's rule.

Protective antibodies target cryptic epitope unmasked by cleavage of malaria sporozoite protein.

The most advanced monoclonal antibodies (mAbs) and vaccines against malaria target the central repeat region or closely related sequences within the circumsporozoite protein (PfCSP). Here, using an antigen-agnostic strategy to investigate human antibody responses to whole sporozoites, we identified a class of mAbs that target a cryptic PfCSP epitope that is only exposed after cleavage and subsequent pyroglutamylation (pGlu) of the newly formed N terminus. This pGlu-CSP epitope is not targeted by current anti-PfCSP mAbs and is not included in the licensed malaria vaccines.

A multi-residue method based on solid phase extraction followed by HPLC-HRMS/MS analysis for the determination of dyes and additives released from polyester fibres after degradation.

Microfibres released from textiles are one of the most common types of microplastics (MPs) found in the environment. Whether they are synthetic or natural, they can undergo degradation in different environmental matrices. This may result in the leaching of a variety of chemicals, mainly textile dyes and additives of high toxicity that need to be regulated.

A Spontaneous Magnetic Moment in an Organic Radical: Synthesis and Characterization of Benzodioxepinyl-1,3,2-dithiazolyl.

The synthesis of the 1,3,2-dithiazolyl radical () derived from 3,4-dihydro-2H-1,5-benzodioxepine is described. Crystals of were grown by vacuum sublimation and adopt the orthorhombic space group . DC SQUID magnetometry reveals Curie-Weiss behavior for > 20 K ( = 0.