China Jiliang University

About: China Jiliang University is a education organization based out in Hangzhou, China. It is known for research contribution in the topics: Fiber optic sensor & Optical fiber. The organization has 9291 authors who have published 8932 publications receiving 95279 citations. The organization is also known as: China Institute of Metrology.

Emerging Roles of microRNAs in Plant Heavy Metal Tolerance and Homeostasis

Abstract: Heavy metal stress is a major growth- and yield-limiting factor for plants. Heavy metals include essential metals (copper, iron, zinc, and manganese) and non-essential metals (cadmium, mercury, aluminum, arsenic, and lead). Plants use complex mechanisms of gene regulation under heavy metal stress. MicroRNAs are 21-nucleotide non-coding small RNAs as important modulators of gene expression post-transcriptionally. Recently, high-throughput sequencing has led to the identification of an increasing number of heavy-metal-responsive microRNAs in plants. Metal-regulated microRNAs and their target genes are part of a complex regulatory network that controls various biological processes, including heavy metal uptake and transport, protein folding and assembly, metal chelation, scavenging of reactive oxygen species, hormone signaling, and microRNA biogenesis. In this review, we summarize the recent molecular studies that identify heavy-metal-regulated microRNAs and their roles in the regulation of target genes as part of the microRNA-associated regulatory network in response to heavy metal stress in plants.

Mediating relaxation and polarization of hydrogen-bonds in water by NaCl salting and heating.

Abstract: Infrared spectroscopy and contact-angle measurements revealed that NaCl salting has the same effect as heating on O:H phonon softening and H–O phonon stiffening, but has the opposite effect on skin polarization of liquid water. The mechanics of thermal modulation of O–O Coulomb repulsion [Sun, et al., J. Phys. Chem. Lett., 2013, 4, 3238] may suggest a possible mechanism for this NaCl involved Hofmeister effect, aqueous solution modulated surface tension and its abilities in protein dissolution, from the perspective of Coulomb mediation of interaction within the O:H–O bond.

Crystal structure, tunable emission and applications of Ca1−xAl1−xSi1+xN3−xOx:RE (x = 0–0.22, RE = Ce3+, Eu2+) solid solution phosphors for white light-emitting diodes

Abstract: CaAlSiN3:Eu2+ is a very promising red phosphor for high color rendering white light-emitting diodes (wLEDs), but a large part of its emission covers wavelengths longer than 700 nm, which is not detectable by the human eye and thus wasted Optimizing its luminescence properties will allow us to further enhance the overall optical properties of wLEDs In this contribution, the luminescence spectra of Ce3+ or Eu2+-activated CaAlSiN3 were tuned and tailored by introducing isostructural Si2N2O to form solid solutions of Ca1−xAl1−xSi1+xN3−xOx (x = 0–022) The structural evolutions, microstructure, luminescence, thermal quenching and quantum efficiency of Ca1−xAl1−xSi1+xN3−xOx:RE (RE = Ce3+, Eu2+) were investigated and clarified by using various analytic techniques Upon introducing Si2N2O into CaAlSiN3, the Ce3+-doped CaAl1−xSi1+xN3−xOx shifted its peak emission from 606 to 575 nm and retained the band width of 145 nm, whereas the Eu2+-doped one blue-shifted its emission from 650 to 638 nm and broadened its band width from 90 to 122 nm, owing to the structural distortion and disorder as well as the band gap broadening associated with the solid solution formation By combining these phosphors with a blue LED, high color rendering (Ra) and luminous efficacy (η) white LEDs were realized (Ra = 825 and η = 104 lm W−1 for the Ce3+-doped phosphors, and Ra = 97 and η = 101 lm W−1 for the Eu2+-doped phosphors)

Hydrogen Bond Asymmetric Local Potentials in Compressed Ice

Abstract: A combination of the Lagrangian mechanics of oscillators vibration, molecular dynamics decomposition of volume evolution, and Raman spectroscopy of phonon relaxation has enabled us to resolve the asymmetric, local, and short-range potentials pertaining to the hydrogen bond (O:H-O) in compressed ice. Results show that both oxygen atoms in the O:H-O bond shift initially outwardly with respect to the coordination origin (H), lengthening the O-O distance by 0.0136 nm from 0.2597 to 0.2733 nm by Coulomb repulsion between electron pairs on adjacent oxygen atoms. Both oxygen atoms then move toward right along the O:H-O bond by different amounts upon being compressed, approaching identical length of 0.11 nm. The van der Waals potential VL(r) for the O:H noncovalent bond reaches a valley at -0.25 eV, and the lowest exchange VH(r) for the H-O polar-covalent bond is valued at -3.97 eV.

Novel zinc–iodine hybrid supercapacitors with a redox iodide ion electrolyte and B, N dual-doped carbon electrode exhibit boosted energy density

Abstract: With the development of modern society, energy storage has gradually become a crucial issue for portable devices and electric vehicles. Recently, zinc-ion hybrid supercapacitors (ZHSs), a new type of energy storage devices, have received significant attention mainly because zinc possesses many advantages such as natural abundance, low cost, non-toxicity and high safety. However, the limited energy density of the currently reported ZHSs should be further improved to achieve their large-scale applications. Herein, we designed novel zinc–iodine hybrid supercapacitors (Z-IHS) by introducing a redox iodide ion into the ZnSO4 electrolyte to improve the energy density and employing B, N dual-doped porous carbon microtubes (BN-CMTs) as a cathode to facilitate the faradaic reaction on the electrode surface by changing the electronic structure and density state of carbon. The BN-CMT-based Z-IHS exhibits the amazingly high capacity of 416.6 mA h g−1, a high energy density (472.6 W h kg−1) at the power density of 1600 W kg−1 in the voltage range of 0.2–1.8 V and excellent cycling stability with the capacity retention of 99.1% over 10 000 cycles at 10 A g−1. The strategy proposed in this study should provide a new insight into the exploration of high energy-density storage devices.