Pressure-Driven Circularly Polarized Luminescence Enhancement and Chirality Amplification.

Achieving ultrahigh-color-purity circularly polarized luminescence (CPL) in low-dimensional chiral perovskites is challenging due to strong electron-phonon coupling caused by lead halide octahedral distortion. Herein, the circularly polarized piezoluminescence behaviors of six novel chiral perovskites, (/-3-XPEA)PbBr (PEA = phenethylamine; X = F, Cl, Br), were systematically investigated. Upon compression, (/-3-ClPEA)PbBr exhibits significant piezofluorochromic behaviors, transforming from yellow CPL to ultrahigh-color-purity deep-blue CPL.

[Expression of connective tissue growth factor in skin lesions in patients with scleroderma].

Objective: To identify the role of connective tissue growth factor (CTGF) in the pathogenesis of scleroderma (SD) and its association with different types and stages of SD.

Methods: The expression of CTGF mRNA and proteins in the skin lesions of 36 patients with SD (including 29 SSc, 7 localized SD; 28 cases at edema and sclerosis stage, and 8 cases at atrophy stage) was detected with in situ RT-PCR and immuno-histochemical SABC respectively. Twenty normal skin tissues served as controls.