Global research landscape and emerging trends in Graves' disease: A bibliometric analysis.

Background: Graves' disease is a prevalent thyroid disorder and is the primary cause of hyperthyroidism. Significant progress has been made in understanding the epidemiology, pathogenesis, diagnosis, treatment, and prognosis of this disease. However, bibliometric analyses on Graves' disease are lacking.

Electrochemically reversible foam enhanced flushing for PAHs-contaminated soil: Stability of surfactant foam, effects of soil factors, and surfactant reversible recovery.

Although surfactant foams enhanced-remediation for PAHs-contaminated soil has been proved to be an effective method, lack of simple/economic surfactant recovery methods from the eluent solutions limit its further remediation application for organic contaminated soil. Here, we prepared a electrochemically reversible ferrocene surfactant FcCHN(CH)CH (Fc12), then investigated the foaming ability and foam stability of Fc12 under its reduced (active state) and oxidation (inactive state) states and explored the flushing efficiency of reduced Fc12 foam for PAHs-contaminated soil and the recovery efficiency of collected eluent solution. The results showed that the foaming ability and foam stability of reduced Fc12 are greatly higher than those of oxidized Fc12, which is indicative of a well reversibly switchable characteristic of Fc12.

Molecular Dynamics Simulation Study of a CO₂-Switchable Surfactant.

We computed molecular properties of a long-tail amidine surfactant (-dodecyl--dimethylacetamidinium bicarbonate, DDAB) through quantum mechanics (QM) method. We then used molecular dynamics (MD) computations to obtain the properties of DDAB when displaced from the center to the boundary surface. The QM calculation results indicated that the mono-dentate type of bindings between polar head group and HCO₃ ion was more likely to be adopted.