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In situ and micro‐scale visualization of electrochemical reactions and multiphase transports on the interface of porous transport electrode (PTE) materials and solid polymer electrolyte (SPE) has been one of the greatest challenges for electrochemical energy conversion devices, such as proton exchange membrane electrolyzer cells (PEMECs), CO2 reduction electrolyzers, PEM fuel cells, etc. Here, an...
An anode electrode concept of thin catalyst‐coated liquid/gas diffusion layers (CCLGDLs), by integrating Ir catalysts with Ti thin tunable LGDLs with facile electroplating in proton exchange membrane electrolyzer cells (PEMECs), is proposed. The CCLGDL design with only 0.08 mgIr cm−2 can achieve comparative cell performances to the conventional commercial electrode design, saving ≈97% Ir catalyst...
Parenteral vaccines typically can prime systemic humoral immune response, but with limited effects on cellular and mucosal immunity. Here, a subcutis‐to‐intestine cascade for navigating nanovaccines to address this limitation is proposed. This five‐step cascade includes lymph nodes targeting, uptaken by dendritic cells (DCs), cross‐presentation of antigens, increasing CCR9 expression on DCs, and driving...
The confinement effect in asymmetrical biological ion channels makes the state of molecules and ions differs from that in the external environment, and the mass transfer confined in the biological ion channels is in a single strand form. Herein, an asymmetrical membrane with angstrom‐sized pores is constructed by growth of ZIF‐90 membrane on the porous anodic aluminum oxide film. Due to the confinement...
It is critical to detect and analyze the heavy metal pollutions in environments and foods. Chemosensors have been widely investigated for fast detection of analytes such as heavy metals due to their unique advantages. In order to improve the detection sensitivity of chemosensors, recently electrospun nanofibrous membranes (ENMs) have been explored for the immobilization of chemosensors or receptors...
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