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The XPS spectra of ionic liquid 1-ethyl-3-methylimidazolium tetrachloroferrate (EmimFeCl4) were collected with Al Kα x-radiation, and the result provides a valence band spectrum in addition to the core Fe 2p, Cl 2p, and C 1s spectra. [ABSTRACT FROM AUTHOR]

Plant extract is a mixture of diverse phytochemicals, and considered as an important resource for drug discovery. However, large-scale exploration of the bioactive extracts has been hindered by various obstacles until now. In this research, we have introduced and evaluated a new computational screening strategy that classifies bioactive compounds and plants in semantic space generated by word embedding algorithm. The classifier showed good performance in binary (presence/absence of bioactivity) classification for both compounds and plant genera. Furthermore, the strategy led to the discovery of antimicrobial activity of essential oils from Lindera triloba and Cinnamomum sieboldii against Staphylococcus aureus. The results of this study indicate that machine-learning classification in semantic space can be a highly efficient approach for exploring bioactive plant extracts. [ABSTRACT FROM AUTHOR]