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IMAGE: (a) Schematic structure of polarized light detector. (b) Photoconductivity parallel and perpendicular to the interface. (c) Photoconductivity anisotropy versus excitation power. (d) Angle-resolved photocurrent as a function of polarization angle. view more
Credit: @Science China Press
Polarization-sensitive photodetectors, based on anisotropic semiconductors, have exhibited wide advantages in specialized applications, such as astronomy, remote sensing, and polarization-division multiplexing. For the active layer of polarization-sensitive photodetectors, recent researches focus on two-dimensional (2D) organic-inorganic hybrid perovskites, where inorganic slabs and organic spacers are alternatively arranged in parallel layered structures. Compared with inorganic 2D materials, importantly, the solution accessibility of hybrid perovskites makes it possible to obtain their large crystals at low cost, offering exciting opportunities to incorporate crystal out-
Cd86), were down-regulated in
Mettl3-deficient cells (Fig. 1G), suggesting that METTL3 has a critical function in controlling the innate immune response of Raw 264.7 macrophages.
To further confirm the biological role of the m
6A modification in macrophages,
Mettl3 conditional KO (CKO) mice were generated by crossing
Mettl3
flox/flox mice with mice expressing Cre recombinase under the control of lysozyme 2 promoter (
Lyzm-Cre). We have documented the loss of both the METTL3 protein and the overall m
6A modification in bone marrow–derived macrophages (BMDMs) from
Mettl3
flox/flox;
Lyzm-Cre mice (fig. S1I). No differences in the frequency of major immune cell populations were observed between
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IMAGE: Dalian Coherent Light Source revealing three-body photodissociation of water as an important prebiotic-O2 source view more
Credit: DICP
The provenance of oxygen on Earth and other solar planetary bodies is a fundamental issue. It is widely accepted that the prebiotic pathway of oxygen production in the Earth primitive atmosphere was via vacuum ultraviolet (VUV) photodissociation of CO
2 and subsequent recombination of two O atoms.
In contrast, the photodissociation of H2O, one of the dominant oxygen carriers, has long been assumed to proceed mainly to produce hydroxyl (OH)- and hydrogen (H)-atom primary products, and its contribution to oxygen production is limited.
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