Autoionization Rates for Sodium- and Magnesium-Like Tungsten and Gold

The autoionization process has an important role in many areas such as satellite line formation, inner-shell ionization, and diagnostics of astrophysical and fusion plasmas. We have here reported autoionization rates for some levels of Na-like tungsten (W⁶³⁺) and gold (Au⁶⁸⁺), and Mg-like tungsten (W⁶²⁺) and gold (Au⁶⁷⁺) using AUTOSTRUCTURE atomic code. In calculations, the Breit interactions, quantum electrodynamics and configuration interaction effects have been considered. The results obtained for tungsten ions have been compared with other available results. Also new results for gold ions have been presented

Energies and Radiative Transition Parameters for Mg-Like Tungsten

By applying AUTOSTRUCTURE code, the energies and transitions for allowed (E1) and forbidden (E2, M1, and M2) lines for low-lying configurations in magnesium-like tungsten $(W^{62+})$ are studied. The electron correlation and relativistic effects are included in computations. Good agreement between our results and available other results are found. The data for E2, M1 and M2 besides some E1 transitions for low-lying levels are presented for the first time

Evaluation of potential environmental toxicity of polymeric nanomaterials and surfactants

Nanomaterials have gained huge importance in various fields including nanomedicine. Nanoformulations of drugs and nanocarriers are used to increase pharmaceutical potency. However, it was seen that polymeric nanomaterials can cause negative effects. Thus, it is essential to identify nanomaterials with the least adverse effects on aquatic organisms. To determine the toxicity of polymeric nanomaterials, we investigated the effects of poly(lactic-co-glycolid) acid (PLGA), Eudragit® E 100 and hydroxylpropyl methylcellulose phthalate (HPMCP) on zebrafish embryos using the fish embryo toxicity test (FET). Furthermore, we studied Cremophor® RH40, Cremophor® A25, Pluronic® F127 and Pluronic® F68 applied in the generation of nanoformulations to identify the surfactant with minimal toxic impact. The order of ecotoxicty was HPMCP < PLGA < Eudragit® E100 and Pluronic® F68 < Pluronic® F127 < Cremophor® RH40 < Cremophor® A25. In summary, HPMCP and Pluronic® F68 displayed the least toxic impact, thus suggesting adequate environmental compatibility for the generation of nanomedicines

Microparticle formulations alter the toxicity of fenofibrate to the zebrafish Danio rerio embryo

10.1016/j.aquatox.2021.105798Aquatic Toxicology23410579