Copper tetramibi tetrafluoroborate 1mg kit for radiopharmaceutical preparation

Copper ions (Cu2+), indispensable in physiological processes yet toxic at elevated concentrations, require sensitive on-site monitoring. Here, a portable fluorescent sensing film (Y-CDs@BCM) was fabricated by anchoring yellow-emitting carbon dots (Y-CDs) into bacterial cellulose films, which enables rapid and sensitive detection of Cu2+ in complex real-world samples. The yellow fluorescent carbon dots (Y-CDs) were synthesized with the aid of o-phenylenediamine and 1-octyl-3-methylimidazolium tetrafluoroborate as precursors, exhibiting excellent fluorescence stability. The fluorescence of Y-CDs was selectively quenched by Cu2+ via the inner filter effect (IFE), allowing quantitative analysis with superior sensitivity compared to existing methods. By adding bacterial cellulose (BC) as a solid support, aggregation-induced fluorescence quenching was effectively reduced, and sensor robustness and portability were improved. Through smartphone-based colorimetric analysis, the Y-CDs@BCM sensor enabled rapid, visual interpretation of Cu2+ detection (within 1 min). Furthermore, cell viability and in vivo assays confirmed the biocompatibility of Y-CDs, indicating their suitability for biological imaging. This work presents an environmentally friendly, reliable, and practical method for on-site Cu2+ monitoring, emphasizing its broad application potential in food safety control and environmental analysis.

Abstract licence: CC BY

Solid electrolytes prepared by the addition of LiBF4 to the plastic phase of [N13pyr]BF4 were prepared, and their physical and electrical properties were investigated. The electrolytes [N13pyr]BF4-LiBF4 containing 8–20 wt% LiBF4 are solid at temperatures below 80 °C and have a high ionic conductivity ~10−3–10−2 S cm−1 at 60 °C. Based on the results of DSC and conductivity studies, the phase diagram of the [N13pyr]BF4-LiBF4 binary system was plotted, and the formation of a new compound, 3[N13pyr]BF4·2LiBF4 was proposed. The existence of the new phase was supported by X-ray diffraction data. Electrochemical measurements of cells with lithium electrodes were carried out to test the applicability of these materials in lithium batteries. The electrochemical window was determined to be more than 5 V. In contrast to earlier data obtained for similar systems, the preconditioning effect was not observed. Nevertheless, the solid electrolyte [N13pyr]BF4-LiBF4 system has high ionic conductivity and may be used in solid-state lithium-ion batteries.

Abstract licence: CC BY 4.0