Effects of Different Light Environments with Varying Spectral Composition on the Axial Lengths and Scleral Specificity Protein 1 and Collagen Type I Expression in Juvenile Guinea Pigs.

The study aimed to investigate changes in the eye axial length in juvenile guinea pigs and the expression of scleral specificity protein 1 (Sp1) and collagen type I (Col-I) under different light environments with varying spectral composition. The animals were randomly divided into five groups: natural light (N), LED light with a low colour temperature (L), E light (E), Fulia light (F), and Gulia light (G). Axial lengths were measured every two weeks, and the expression of Sp1 and Col-I in the sclera was assessed by immunohistochemistry, Western blot and RT-qPCR.

Circularly Polarized Light-Dependent Pyro-Phototronic Effect from 2D Chiral-Polar Double Perovskites.

Chiral hybrid perovskites combine the advantages of chiral materials and halide perovskites, offering an ideal platform for the design of circularly polarized light (CPL) detectors. The pyro-phototronic effect, as a special mechanism of the photoexcited pyroelectric signal, can significantly improve the performance of photodetectors, whereas it remains a great challenge to achieve pyroelectricity-based CPL detection. In this work, the chiroptical phenomena and the pyro-phototronic effect are combined in chiral-polar perovskites to achieve unprecedented pyroelectric-based CPL detection.

Realization of Passive X-Ray Detection with a Low Detection Limit in Dion-Jacobson Halide Hybrid Perovskite.

Halide hybrid perovskites are a kind of intriguing contenders for X-ray detection, and their low detection limits (LoDs) have played a crucial part in X-ray safety inspection and medical examination. However, there is still a significant challenge in manufacturing perovskite X-ray detectors with low LoDs. Herein, attributed to the bulk photovoltaic effect (BPVE) of a Dion-Jacobson (DJ) type 2D halide hybrid perovskite polar structure (3-methylaminopropylamine)PbBr (1), self-powered X-ray detection with low detection limit is successfully realized.

Localized Lattice Expansion of FAPbBr to Design a 3D Hybrid Perovskite for Sensitive Near-Infrared Photodetection.

A mixed-cation 3D lead bromide hybrid perovskite (NMDAP) FAPb Br (1, NMDAP = N-methyl-1,3-diaminopropanium, FA = formamidinium) is tailored by incorporating the large NMDAP cation with the small FA ion into 3D FAPbBr . Structurally, the small FA ions occupy the prototypical cavities formed by distorted corner-sharing PbBr octahedra as in FAPbBr , while the bulky NMDAP ions are confined to the expanded lattice which is defined by a new structural motif composed of eight corner-sharing PbBr octahedra and four edge-sharing octahedra. This localized lattice expansion from FAPbBr creates a new branch of the intriguing 3D hybrid perovskite family, breaking the limits of the conventional Goldschmidt tolerance factor rule.

Highly efficient electrochemiluminescence based on 4-amino-1,2,4-triazole Schiff base two-dimensional Zn/Cd coordination polymers.

Four coordination polymers, formulated as [Zn(L)] (1), [Cd(L)] (2), [Zn(L)] (3) and [Cd(L)] (4) (HL1 is (E)-2-(((4H-1,2,4-triazol-4-yl)imino)methyl)-4,6-dibromophenol; HL2 is (E)-2-(((4H-1,2,4-triazol-4-yl)imino)methyl)-4,6-dichlorophenol) have been synthesized through vial reactions. The four compounds were structurally characterized by single crystal X-ray diffraction, elemental analysis, PXRD, and fluorescence spectroscopy. For 1-4, a detailed analysis of Hirshfeld surfaces and fingerprint plots facilitates a comparison of intermolecular interactions, which are crucial in building different supramolecular architectures.

Genome-wide association study for pigmentation traits in Chinese Holstein population.

With the Illumina BovineSNP50K BeadChip, we performed a genome-wide association study (GWAS) for two pigmentation traits in a Chinese Holstein population: proportion of black (PB) and teat colour (TC). A case-control design was used. Cases were the cows with PB <0.