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https://www.selleckchem.com/products/ly333531.html Tailoring the crystal orientation of poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) has attracted widespread interest because of its effects on the ferroelectric properties required for various electronic devices. In this study, we investigated the epitaxial growth of PVDF-TrFE on a chitin film for developing triboelectric nanogenerators (TENGs). The crystallographic match between the chitin and PVDF-TrFE enables the development of the intended crystal orientation, with the PVDF-TrFE polarization axis aligned perpendicular to the substrate. In addition, the epitaxially grown PVDF-TrFE on chitin not only enhances the performance of the TENG but also increases the stability of the hygroscopic chitin film against water. The corresponding TENG exhibits a significantly higher output current compared to that of a nonepitaxial PVDF-TrFE/chitin film. Furthermore, the triboelectric sensors based on epitaxial PVDF-TrFE/chitin films allow the monitoring of subtle pressures, suggesting that tailoring the crystal orientation of PVDF-TrFE is a promising approach for developing high-performance TENGs.Pancreatic ductal adenocarcinoma (PDAC) strongly resists standard therapies since KRAS-mutated cancer cells harbor endogenous resistance toward chemotherapy-induced apoptosis and tumor-associated macrophages (TAMs) activate stroma cells to create the nearly impenetrable matrix. Herein, we developed a tailored nanocomplex through the self-assembly of synthetic 4-(phosphonooxy)phenyl-2,4-dinitrobenzenesulfonate and Fe3+ followed by hyaluronic acid decoration, realizing chemodynamic therapy (CDT) to combat PDAC. By controllably releasing its components in a GSH-sensitive manner under the distinctive redox homeostasis in cancer cells and TAMs, the nanocomplex selectively triggered a Fenton reaction to induce oxidative damage in cancer cells and simultaneously repolarized TAMs to deactivate stromal cells and thus attenuate stro

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