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Recently, the continuous tube-in-tube reactor based on the Teflon AF membrane is emerging as a powerful toolkit for accelerating gas-liquid mass transfer and reaction rate. Because of its large gas-liquid interfacial area and short mass transfer distance, the reactor can allow a fast gas-liquid mass transfer without direct contact between gas and liquid phases, offering an efficient and safe platform for implementing gas-liquid reaction and rapid determination of gas-liquid parameters. In this review, a detailed description and construction method of this reactor are provided. Then, the recent advancements of the tube-in-tube reactor in fundamental studies and practical applications in gas-involved chemical reactions and biosynthetic processes are discussed. Finally, a perspective on future potential applications of such flow reactors is provided.

Basic leucine zipper (bZIP) extensively studied transcription factor family and has been implicated in abiotic stress resistance in eukaryotes. Genes encoded by bZIP govern changes in molecular, physiological, and biological processes in response to abiotic stimuli. Developments in molecular knowledge and easy access to the drafted genome of indica rice open ways to explore bZIP and related features within the indica rice genome. We identified 82 TFs encoding bZIPs in the indica rice genome. The identified 82 bZIPs are unevenly distributed across all 12 chromosomes. The identified bZIP family expansion in the indica rice genome is mainly by segmental duplication relative to tandem duplication. The gene structure analysis exhibited that most genes are intron-less and distributed among all phylogenetic groups. We identified 20 different conserved motifs, supporting that bZIPs regulate the different biological processes in rice. The comparative phylogenetic analysis of indica rice bZIPs with Arabidopsis categorized the genes into 11 different groups, having several orthologs and paralogs. Apart from the comparative analysis, gene ontology (GO) analysis illustrated the involvement of bZIPs in different biological processes and the interaction between different processes are important for the metabolic activity of a living organism.Moreover, KEGG pathway analysis identified the 23 bZIPs involved in pathogen infection, carotenoid biosynthesis, and phenylalanine metabolism. Among 23 genes, 12 genes were selected for the expression analysis under salt and cold stress treatments in the Khusboo-95 indica rice variety. In this research, LOC_Os01g17260.2, LOC_Os02g52780.1, and LOC_Os09g10840.1 showed upregulated expression under salt stress conditions. This genome-wide analysis allows researchers to functionally characterize the genes, involved in different abiotic stresses that could be beneficial to improve plant performance under challenging conditions.