27 Result(s)
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Article
What drives superconductivity in Pt-doped IrTe2?
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Article
Discovery of marine fossils in the upper part of the Permian Linxi Formation in Lo**ian, **ngmeng area, China
Two important geological issues have a long history of debate in the **ngmeng area. The first concerns the final closure of the North China plate, Siberia plate and several intermediate massifs in the area, an...
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Article
Open AccessA brief review of graphene-based material synthesis and its application in environmental pollution management
Graphene is an interesting two-dimensional carbon allotrope that has attracted considerable research interest because of its unique structure and physicochemical properties. Studies have been conducted on grap...
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Article
Open AccessRoad surface mirage: A bunch of hot air?
The inferior mirage from road surfaces is a common phenomenon, which can be easily seen in everyday life. It has been recognized in the literature as a light refraction phenomenon due to the refractive index g...
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Article
Controllable fabrication of Au micro/nanostructures on self-doped polyaniline nanofibers via electrochemical deposition and its application for DNA immobilization
Four electrochemical methods, cyclic voltammetric deposition, potentiostatic electrodeposition, multi-potential step electrodeposition and three-step electrodeposition, were used to fabricate Au micro/nanostru...
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Article
Plasmon hybridization for real metals
We present three important extensions of the plasmon hybridization (PH) method: a generalization of the method to include realistic non-Drude dielectric permittivities for metals, the development of an algorit...
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Article
The palaeoenvironmental implication of Early-Middle Ordovician acritarch communities from South China
As primary producers, acritarchs that represented the base of the food chain in the Early Paleozoic marine ecosystem formed the marine phytoplankton communities whose distributions might affect those of other ...
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Article
The DNA concentration effect on DNA radiation damage induced by 7Li ions and γ rays
To evaluate the influence of the DNA concentration in the aqueous solution on DNA radiation damage, the plasmid DNA in the presence or absence of Mannitol (scavenger of free radical OH•) was irradiated by 7Li ion...
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Article
Spatial distribution and sources of soil heavy metals in the outskirts of Yixing City, Jiangsu Province, China
City outskirts serve as the concentration centers for the pollutants discharged from various sources such as industry, agriculture and transportation. With the acceleration of industrialization and urbanizatio...
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Heavy metals contents in soil profiles of typical agricultural lands in Yixing, Jiangsu Province, China
The effect of land use pattern on the heavy metals (HMs) distribution in soil profiles was investigated in Yixing City, China, for the four typical types of land utilization, i.e. vegetable fields on the plain...
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Article
Vanadyl ions binding to GroEL (HSP60) and inducing its depolymerization
Several vanadium compounds have been known for the hypoglycemic and anticancer effects. However, the mechanisms of the pharmacological and toxicological effects were not clear. In this work, we investigated th...
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Article
Anisotropic, gradient and metal-like mechanical behaviors of teeth and their implications on tooth functions
The anisotropy and gradient of the elastic modulus and the hardness of teeth were investigated by means of instrumented indentation method. Such properties are attributed to the unique microstructures of teeth...
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Article
Icariin suppresses bone resorption activity of rabbit osteoclasts in vitro
The effect of icariin on the bone resorption activity of rabbit osteoclasts is assessed in vitro. Osteoclasts were isolated from Japanese white rabbits and cultured on plates with a sterilized bone slice in each ...
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Article
Effect of La3+ on osteoblastic differentiation of rat bone marrow stromal cells
In the present work, the effect of La3+ on osteoblastic differentiation of primary rat bone marrow stromal cells (MSCs) as well as the related mechanisms are studied. Differentiation is monitored by detection of ...
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Article
Biodiversity of Early-Middle Ordovician acritarchs and sea level changes in South China
As the primary producers, acritarchs represent the base of the food chain in the Paleozoic marine ecosystem which links with the evolution of acritarchs. Based on high precision quantitative research, much inf...
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Article
Permeation of vanadium(III, IV, V)-dipicolinate complexes across MDCK cell monolayer and comparison with Caco-2 cells
The permeation and cytotoxicity of three insulinmimetic vanadium(III, IV, V)-dipicolinate complexes were studied using the MDCK cell monolayer in comparison with the Caco-2 cells. On MDCK cell monolayer, the a...
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Article
Analysis of length distribution of short DNA fragments induced by7Li ions using the random-breakage model
Deoxyribonucleic acid (DNA) is an important bio-macromolecule. DNA double strand breaks (DSBs) are considered to be the most important initial damage responsible for all biological effects induced by ionizing ...
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Article
Effects of the rare earth ions on bone resorbing function of rabbit mature osteoclastsin vitro
The effects of rare earth ions on bone resorbing function of osteoclasts were studied by culturing Japanese white rabbit osteoclasts on bone slices. In order to evaluate the activity of osteoclasts, the number...
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Article
Comparison of intestinal absorption of two insulin-mimic vanadyl complexes using Caco-2 monolayers as model system
Intestinal absorption of two oxovanadium complexes, vanadyl acetylacetonate (VO(acac)2) and bis-(maltolato)-oxovanadium (VO(ma)2), has been compared using Caco-2 monolayers as a model system. The two compounds ar...
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Article
Copper ions inactivate S-adenosylhomocysteine hydrolase
S-adenosylhomocysteine (AdoHcy) hydrolase is an enzyme that regulates biomethylation and some other physiological processes. Recombinant AdoHcy hydrolase was overexpressed inE. coli JM109 and purified with ion ex...
