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In article number 2101151, Hao Liu, Feng Xu, and co‐workers have developed an ionically conductive organohydrogel based soft electronic device that demonstrates excellent performances at freezing and elevated temperatures as well as in underwater conditions. The ionically conductive organohydrogel‐based electronics can be adhered on the robotic hand for grasping detection at extreme temperatures,...
Imperceptible electronics will make next‐generation healthcare and biomedical systems thinner, lighter, and more flexible. While other components are thoroughly investigated, imperceptible energy storage devices lag behind because the decrease of thickness impairs the area‐specific energy density. Imperceptible supercapacitors with high area‐specific capacitance based on reduced graphene oxide/polyaniline...
In article number 2100801, Mohammad A. Qasaimeh and co‐workers develop a noncontact multiphysics probe (NMP) for minimally invasive manipulation of single cells within the tissue formation. It works in an open microfluidic setting and simultaneously confines reagents and electric field for macromolecules exchange through the membrane of living single‐cells. These features enable transfection, biopsy...
In article number 2100558, a high‐performance vanadium oxide nanobelt/reduced graphene oxide composite cathode for aqueous zinc ion battery is reported by Huili Cao, Xinxin Xiao, Susanne Mossin, and co‐workers. The acid effect on the morphology of the composite and a graduate phase transition of vanadium oxide during energy storage process are disclosed.
In article number 2100637, Vinayak P. Dravid, Jinsong Wu, and co‐workers perform a systematic study of WS2 nanoflakes as the anode for lithium‐ion and sodium‐ion batteries. It is found that compared to LIBs, SIBs exhibit a higher reversible sodium storage capacity and superior cyclability. The results show a direct correlation between the reaction dynamics of lithiated/sodiated WS2 nanoflakes and...
The rise of 3D printing technology, with fused deposition modeling as one of the simplest and most widely used techniques, has empowered an increasing interest for composite filaments, providing additional functionality to 3D‐printed components. For future applications, like electrochemical energy storage, energy conversion, and sensing, the tuning of the electrochemical properties of the filament...
Solar‐driven evaporation is regarded as a sustainable wastewater treatment strategy for clean water recovery and salt condensation. However, achieving both high evaporation rate and long‐term stability remain challenging due to poor thermal management and rapid salt accumulation and blocking. Here, a T‐shape solar‐driven evaporator, composed of a surface‐carbonized longitudinal wood membrane (C‐L‐wood)...
2D covalent organic frameworks (COFs) are drawing intense attention in heterogenous photocatalysis due to their porous, crystalline, and tailor‐made structures. For highly efficient solar‐to‐chemical energy conversion, revealing and modulating active centers in the skeletons of COFs are of great importance but encounter severe challenges. Herein, it is demonstrated that cyano conjugation on a typical...
The emission of photons from metal‐insulator‐metal (MIM) nanojunctions through inelastic tunneling of electrically driven electrons is a well‐acknowledged approach to develop miniaturized light sources and ultradense photonic instruments. Generally, the existing research in the optimization of electromigrated tunneling junctions is principally centered on the generation of visible and near‐infrared...
Hydrogel‐based electronics have found widespread applications in soft sensing and health monitoring because of their remarkable biocompatibility and mechanical features similar to human skin. However, they are subjected to potential challenges like structural failure, functional degradation, and device delamination in practical applications, especially facing extreme environmental conditions (e.g...
Improving power conversion efficiencies (PCEs) and stability are two main tasks for organic photovoltaic (OPV) cells. In the past few years, although the PCE of the OPV cells has been considerably improved, the research on device stability is limited. Herein, a cross‐linkable material, cross‐linked [6,6]‐phenyl‐C61‐butyric styryl dendron ester (c‐PCBSD), is applied as an interfacial modification layer...
Layered mesostructured graphene, which combines the intrinsic advantages of planar graphene and mesoporous materials, has become interestingly important for energy storage and conversion applications. Here, an interlayer‐confined molecular assembly method is presented for constructing all‐graphitic multilaminate membranes (MMG⊂rGO), which are composed of monolayer mesoporous graphene (MMG) sandwiched...
Here, the authors performed density functional theory calculations to study the catalytic performance of the nitric oxide reduction reaction (NORR) via a series of transition metal borides (MBenes). This work screened the M2B2 type MBenes from the IVB to V transition metals from the periodic table and systematically probed the catalytic activity and selectivity for the NORR process. It has been reported...
Spatially offset Raman spectroscopy is integrated with a fiber‐coupled spatial heterodyne spectrometer to collect Raman spectra from deep within opaque or scattering materials. The method, named spatial heterodyne offset Raman spectroscopy generates a wavenumber‐dependent spatial phase shift of the optical signal as a “spectral” image on a charge‐coupled device detector. The image can be readily processed...
Thrombosis and infections are the main causes of implant failures (e.g., extracorporeal circuits and indwelling medical devices), which induce significant morbidity and mortality. In this work, an endothelium‐mimicking surface is engineered, which combines the nitric oxide (NO)‐generating property and anti‐fouling function of a healthy endothelium. The released gas signal molecules NO and the glycocalyx...
Heterogeneity and spatial arrangement of individual cells within tissues are critical to the identity of the host multicellular organism. While current single‐cell techniques are capable of resolving heterogeneity, they mostly rely on extracting target cells from their physiological environment and hence lose the spatiotemporal resolution required for understanding cellular networks. Here, a multifunctional...
WS2 nanoflakes have great potential as electrode materials of lithium‐ion batteries (LIBs) and sodium‐ion batteries (SIBs) because of their unique 2D structure, which facilitates the reversible intercalation and extraction of alkali metal ions. However, a fundamental understanding of the electrochemical lithiation/sodiation dynamics of WS2 nanoflakes especially at the nanoscale level, remains elusive...
Porous carbon materials attract great interest in a wide range of applications such as batteries, fuel cells, and membranes, due to their large surface area, structural and compositional tunability, and chemical stability. While micropores are typically obtained when preparing carbon materials by pyrolysis, the fabrication of mesoporous, and especially macroporous carbons is more challenging, yet...
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