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Accurate and sensitive analysis of cancer‐associated microRNAs in living tissue is of great significance for the early diagnosis and treatment of cancer. Herein, a hierarchical nanoprobe denoted as UCNP‐QDs‐GNPs is delicately designed, where a near‐infrared (NIR) absorptive upconversion nanoparticle (UCNP) serves as the core, broad‐absorptive and bright emissive quantum dots (QDs) and emission‐quencher...
Electrochemical carbon capture and utilization (eCCU) from flue gas CO2 could avoid high energy consumption and capital input in conventional capture, storage, and utilization, which is a promising approach for achieving negative emissions and producing “e‐chemicals.” However, low CO2 concentration and leftover O2 in the flue gas presumably lowers the eCCU performance. Herein, redox‐active 2‐amino‐5‐mercapto‐1,3,4‐thiadiazole...