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As one of the most effective surface-enhanced infrared absorption (SEIRA) techniques, metal-insulator-metal structured metamaterial perfect absorbers possess an ultrahigh sensitivity and selectivity in molecular infrared fingerprint detection. N-Methyladenosine However, most of the localized electromagnetic fields (i.e., hotspots) are confined in the dielectric layer, hindering the interaction between analytes and hotspots. By replacing the dielectric layer with the nanofluidic channel, we develop a sapphire (Al2O3)-based mid-infrared (MIR) hybrid nanofluidic-SEIRA (HN-SEIRA) platform for liquid sensors with the aid of a low-temperature interfacial heterogeneous sapphire wafer direct bonding technique. The robust atomic bonding interface is confirmed by transmission electron microscope observation. We also establish a design methodology for the HN-SEIRA sensor using coupled-mode theory to carry out the loss engineering and experimentally validate its feasibility through the accurate nanogap control. Thanks to the capillary for, demonstrating a way toward quantitative molecule identification and dynamic analysis for the chemical and biological reaction processes.The heterobimetallic metallacrown (MC), (TMA)2Mn(OAc)2[12-MCMn(III)Cu(II)N(shi)-4](CH3OH)·2.90CH3OH, 1, where TMA+ is tetramethylammonium, -OAc is acetate, and shi3- is salicylhydroximate, consists of a MnII ion captured in the central cavity and alternating unambiguous and ordered manganese(III) and copper(II) sites about the MC ring, a first for the archetypal MC structure design. DC-magnetometry characterization and subsequent simulation with the Spin Hamiltonian H = -J1( s 1 + s 3)· s 5 - J2( s 2 + s 4)· s 5 - J3Σi=14 s i · s i+1 + d( s z,12 + s z,32) + μBΣj=15g j s j · B indicates an S = 5/2 ground state and a sizable axial zero-field splitting on MnIII. AC-susceptibility measurements reveal that 1 displays slow magnetization relaxation akin to single-molecule magnet (SMM) behavior.Although sodium vanadium fluorophosphate, Na3(VO1-xPO4)2F1+2x (0 ≤ x ≤ 1), is a highly promising cathode candidate for sodium-ion batteries because of its stable structure and high working voltage, the low charge diffusion dynamics and the inactive materials used in traditional coating electrodes reduce the energy density of a sodium-ion full battery. Hence, Na3V2O2(PO4)2F/graphene aerogels (NVPF/GAs) with a three-dimensional continuous porous network are first prepared by coassembly and freeze-drying. The three-dimensional porous network helps to obtain a high NVPF content of 81 wt %, relieve the volume change for improving the cyclability, and enhance the wettability of the electrode with the electrolyte for accelerating the diffusion dynamics of sodium ions and electrons. As a directly used freestanding cathode without the use of any binder/collector, an optimized freestanding NVPF/GA electrode exhibits excellent cycling and rate performances compared to traditional coating electrodes. The average capacities at current densities of 0.2, 0.5, 1.0, 2.0, and 5.0 C are 135.4, 128.0, 125.1, 121.9, and 115.1 mA h g-1, respectively. Especially, it maintains a capacity retention of 100% after 1000 cycles at an ultrahigh current of 40 C. A sodium-ion full battery with the NVPF/GA cathode and the Sb/graphene/carbon anode attains a of 82.1 mA h g-1 without an obvious decline after 100 cycles.The safety issue caused by thermal runaway poses a huge threat toward the lifespan and application of high-density electrochemical energy storage devices, especially in the field of micro-energy, such as microsupercapacitors (MSCs). The heat accumulation is difficult to be eliminated, considering the narrow space inside integrated electronic devices attached to the MSC group. Active thermal management is of paramount importance to ensure the normal operation of electronic devices. However, existing one-time thermal protection strategies cannot fully meet current requirements. Herein, we report a promising thermoreversible temperature-responsive electrolyte system, which can shut down the current flow before thermal runaway occurs, thanks to the sol-gel transition of Pluronic [poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide)]-based graft copolymer solution. As the temperature rises to 80 °C, the self-protective electrolyte will change from the sol state to gel state. Meanwhile, the ilosed herein is expected to provide new insights into the new-generation smart MSCs for their wide applications in diverse fields such as microelectronics and wearable devices.Fourier transform mass spectrometers routinely provide high mass resolution, mass measurement accuracy, and mass spectral dynamic range. In this work, we utilize 21 T Fourier transform ion cyclotron resonance (FT-ICR) to analyze product ions derived from the application of multiple dissociation techniques and/or multiple precursor ions within a single transient acquisition. This ion loading technique, which we call, "chimeric ion loading", saves valuable acquisition time, decreases sample consumption, and improves top-down protein sequence coverage. In the analysis of MCF7 cell lysate, we show collision-induced dissociation (CID) and electron-transfer dissociation (ETD) on each precursor on a liquid chromatography-mass spectrometry (LC-MS) timescale and improve mean sequence coverage dramatically (CID-only 15% vs chimeric 33%), even during discovery-based acquisition. This approach can also be utilized to multiplex the acquisition of product ion spectra of multiple charge states from a single protein precursor or multiple ETD/proton-transfer reactions (PTR) reaction periods. The analytical utility of chimeric ion loading is demonstrated for top-down proteomics, but it is also likely to be impactful for tandem mass spectrometry applications in other areas.Pursuing high-performance cathode materials for sodium-ion batteries (SIBs) has great significance in the modern green energy world. The P2-type sodium-based layered oxide Na0.67[Mn0.67Ni0.33]O2 with high operating potential upon 4.3 V and high theoretical capacity has emerged as the most promising cathode. However, the material suffers from severe capacity decay during the electrochemical reaction process. Herein, the P2-Na0.67[Mn0.67Ni0.21Li0.06Zn0.06]O2 cathode is gained by moderately substituting lithium/zinc for the nickel sites. The inactive Li/Zn co-substitution is endowed with the ability to stabilize the crystal structure, resulting in enhanced electrochemical kinetics and remarkable long cyclic performance in liquid- and solid-state electrolytes. Thus, the Li/Zn co-substituted cathode presents a specific capacity of 154 mAh g-1 at the first discharge process, excellent rate capability with 77 mAh g-1 at a high current density of 5 C, and long cyclic stability in liquid-state batteries. Excitingly, it is also endowed with a high capacity retention of 85% after 500 cycles in solid-state batteries.
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