Hong Liu

Bio: Hong Liu is an academic researcher from Shandong University. The author has contributed to research in topics: Medicine & Materials science. The author has an hindex of 100, co-authored 1905 publications receiving 57561 citations. Previous affiliations of Hong Liu include Shanghai University & Guangzhou University.

Silver- and gold-mediated intramolecular cyclization to substituted tetracyclic isoquinolizinium hexafluorostilbates.

Abstract: A convenient route for the synthesis of various charged tetracyclic isoquinolizinium hexafluorostilbates was developed using AgSbF6/AuCl(PPh3) for the intramolecular addition of amine to alkyne. The described process is tolerant of a variety of functional groups and broadens the diversity of substrates with the use of 8-substituted tetracyclic isoquinolizinium salts.

Anomalous magnetic properties of the epitaxial CoFe2O4 films prepared by reactive cosputtering

Abstract: Epitaxial CoFe2O4 (CFO) films with different thicknesses (6–240 nm) were fabricated on (001) SrTiO3 substrates by reactive cosputtering. Microstructure analyses indicate that the surfaces of the CFO films are covered by islands with height from 2.7 to 0.8 nm upon decreasing film thickness from 240 to 6 nm. Magnetic measurement shows that the CFO films exhibit film thickness dependence of anomalous magnetic properties, including two different “magnetic phases” reflected in the magnetization loops, and reduced saturation magnetization and coercivity with decreasing film thickness. Systematic analyses of the microstructure and magnetization loops for the CFO films with different thicknesses imply that the structure defects on the surface and at the interface, together with the antiphase boundaries in the films are responsible for the anomalous magnetic properties of the CFO films.

Electrocatalytic Upcycling of Nitrate and Hydrogen Sulfide Via a Nitrogen-doped Carbon Nanotubes Encapsulated Iron Carbide Electrode

Abstract: To achieve the efficient electrocatalytic upgrading of nitrate (NO3−) and hydrogen sulfide (H2S) to value-added ammonia (NH3) and sulfur (S) from wastewater, herein, we report a remarkable nitrogen-doped carbon nanotubes encapsulated iron carbide array electrode (Fe3[email protected]/IF) as both cathode and anode for the efficient electrocatalytic reduction of NO3− to NH3 and oxidation of H2S to S, respectively. Both experimental and theoretical calculation confirm the high activity of Fe3[email protected]/IF. A maximal NH3 faradaic efficiency of ~97.9% with the yield rate of 0.922 mg h−1 cm−2 at − 1.1 V vs. SCE and the S yield rate of 33.76 mg h−1 cm−2 at the current density of 100 mA cm−2 can be achieved. In addition, a flow cell is employed with a multifunctional Fe3[email protected]/IF electrode with channels made by laser to maintains excellent stability for continuous upcycling NO3− and H2S to produce NH3 and S, which demonstrates its massive potential for practical application.

I and i

Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

疟原虫var基因转换速率变化导致抗原变异[英]／Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A

Abstract: 抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1（PfPMP1）与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员，通过启动转录不同的var基因变异体为抗原变异提供了分子基础。

The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets

Abstract: Ultrathin two-dimensional nanosheets of layered transition metal dichalcogenides (TMDs) are fundamentally and technologically intriguing. In contrast to the graphene sheet, they are chemically versatile. Mono- or few-layered TMDs - obtained either through exfoliation of bulk materials or bottom-up syntheses - are direct-gap semiconductors whose bandgap energy, as well as carrier type (n- or p-type), varies between compounds depending on their composition, structure and dimensionality. In this Review, we describe how the tunable electronic structure of TMDs makes them attractive for a variety of applications. They have been investigated as chemically active electrocatalysts for hydrogen evolution and hydrosulfurization, as well as electrically active materials in opto-electronics. Their morphologies and properties are also useful for energy storage applications such as electrodes for Li-ion batteries and supercapacitors.