Inspired by photosynthesis, the ion transport‐based artificial light harvesting system shows unprecedented superiority in photoelectric conversion. However, how to high‐efficiently utilize solar energy, just like photosystem I and photosystem II working together in the thylakoid membrane, remains a great challenge. Here, a facile strategy for patterning two photosensitive molecules is demonstrated, that is, thiophene polyelectrolyte (PTE‐BS) and bipyridine ruthenium (N3), onto the two segments of symmetric/asymmetric hourglass‐shaped alumina nanochannels. Owing to the different energy levels, an interfacial‐potential‐gradient is established in the tip junction of the nanochannels, wherein photoinduced excited electrons transfer from PTE‐BS to N3, resulting in the efficient separation of electron–holes. Simultaneously, the increasing surface‐charge‐density enhances transmembrane ion transport performance. Thus, the photo‐induced ionic current change ratio increases up to 100% to realize a significant photoelectric conversion, which is superior to all of the N3 or PTE‐BS individually modified nanochannel systems. By changing the channel geometry from symmetric to asymmetric, the biomimetic nanochannels also exhibit a diode‐like ion transport behavior. This work may provide guidance for the development of high‐performance photoelectric conversion nanochannel systems.

Bioinspired nanochannel system showing analogous energy conversion characteristic has attracted great interest. Here, we demonstrate a nanochannels array by modifying bilayers light responsive molecules onto specific segment of alumina nanochannels....

Zanthoxylum myriacanthum Wall. ex Hook. f., a plant belonging to the Rutaceae family and the Zanthoxylum genus, is extensively utilized for its medicinal properties and as a culinary seasoning in China and Southeast Asian countries. However, the chemical composition and biological activities of Z. myriacanthum branches and leaves remain insufficiently explored. In this study, the volatile and non-volatile components of Z. myriacanthum branches and leaves were analyzed using GC-MS and UPLC-Q-Orbitrap HRMS techniques. A total of 78 volatile compounds and 66 non-volatile compounds were identified. The volatile compounds were predominantly terpenoids and aliphatic compounds, while the non-volatile compounds were primarily flavonoids and alkaloids. The branches contained 52 volatile compounds and 33 non-volatile compounds, whereas the leaves contained 48 volatile compounds and 40 non-volatile compounds. The antioxidant activities of the methanol extracts from Z. myriacanthum branches and leaves were evaluated using ABTS and DPPH free-radical-scavenging assays, both of which demonstrated certain antioxidant activity. The methanol extract of leaves demonstrated significantly higher antioxidant activity compared to that of the branches, possibly due to the higher presence of flavonoids and phenols in the leaves, with IC50 values of 7.12 ± 0.257 μg/mL and 1.22 × 102 ± 5.01 μg/mL for ABTS and DPPH, respectively. These findings enhance our understanding of the chemical composition and antioxidant potential of Z. myriacanthum. The plant holds promise as a natural source of antioxidants for applications in pharmaceuticals, cosmetics, and functional foods. Further research can explore its broader biological activities and potential applications.