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High‐temperature proton‐exchange membrane fuel cells (HT‐PEMFCs) fabricated with phosphoric acid (PA)‐doped polybenzimidazole (PBI) show apparent technical advantages. In practical automotive applications, achieving cold start‐up capability is crucial. In this work, a kind of branched block proton exchange membrane (PEM) based on PBI with a low content of porphyrin ring (<1 mol.%) is reported as...
Wound healing is a multicellular process that involves the coordinated efforts of several cell types, including keratinocytes, fibroblasts, and endothelial cells. This process is also regulated by an equally complex signaling network involving numerous growth factors, cytokines, and chemokines. The mechanistic target of rapamycin complex 1 (mTORC1) is a central regulator of cell growth, proliferation,...
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