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Kuaidamao, China

Lin Y.,Tonghua Normal College | Pan S.-D.,Shanghai Customs College
Journal of Clinical Rehabilitative Tissue Engineering Research | Year: 2010

OBJECTIVE: With tissue engineered material in repair of meniscus movement injury as starting point, to introduce meniscal structure and function, source of meniscus seed cells, cytokine effects and application of tissue engineered materials to repair damaged meniscus. METHODS: We retrieved full-text database of Chinese journals by computer for relevant articles published from January 1998 to December 2009, with the key words of "meniscus, tissue engineering, sports injuries, bracket". Studies addressing biological stent material of tissue-engineered meniscus were included. Duplicated studies were excluded. A total of 21 articles were summarized and analyzed. RESULTS: The meniscus biological stent material can be assigned to natural biomaterial, artificial synthetic macromolecule material and compound material according to its source. Stent material plays an important role in meniscus tissue engineering. To select a suitable vector is a problem that should be solved first. During research and development of biomaterial, we should pay attention to studies concerning interaction between cells and biomaterials, to avoid disconnection between biomaterial and seed cell studies. Preparation of composite not only includes the combination of the same biomaterials, but also contains crossing combination of various biomaterials. The research and development of biological or chemical modification of composite, nanometer material, bionic material and intelligent material are major contents in further studies addressing biomaterials. CONCLUSION: Following surface modification of stent material, using novel constructed technique and utilizing combined application of natural and synthetic material for multiple material combination, to develop composite, bionic material and intelligent material with good biocompatibility and strong adaptive capacity of mechanics is a major research direction in meniscus biological stent material in recent years.

A new coordination polymer, {[Cd(Hbic)(bdc)1/2]-H2O}n (1), has been synthesized by the self-assembly of 1H-benzimidazole-5-carboxylic acid (H2bic), 1,4-benzenedicarboxylic acid (H2bdc) and Cd(NO3)2·4H2O under hydrothermal conditions, and characterized by elemental analysis, IR, TGA, XRPD and single-crystal X-ray diffraction analysis. Complex 1 shows a 2D layer-like structure formed by mixed aromatic carboxylic acid ligands bridging chain-like [Cd(COO)]n SBUs, in which there exists cage-like cavity.These 2D layers are extended into a 3D supramolecular framework by intermolecular hydrogen bonds and π-π packing interactions. The photoluminescense of complex 1 in the solid state at room temperature have been studied. CCDC: 9096188. © 2014, Chinese Chemical Society. All rights reserved.

Guo H.Y.,Shenyang Pharmaceutical University | Guo H.Y.,CAS Beijing Institute of Genomics | Wang W.W.,CAS Beijing Institute of Genomics | Yang N.,CAS Beijing Institute of Genomics | And 8 more authors.
Science China Life Sciences | Year: 2010

Based on variable nuclear and/or organellar DNA sequences among vastly divergent species as well as morphologically indistinguishable species, DNA barcoding is widely applicable in species identification, biodiversity studies, forensic analyses, and authentication of medicinal plants. The roots of Astragalus membranaceus and A. membranaceus var. mongholica are commonly used as Radix Astragali in several Asian countries, including China, Japan, and Korea. However, in addition to the two species recorded in the Chinese Pharmacopoeia, there are twenty-three species from different genera including Astragalus, Oxytropis, Hedysarum, and Glycyrrhiza, which have been used as adulterants not only in trading markets but also by the herbal medicine industry. Therefore, a simple, reliable, and accurate classification method is important for distinguishing authentic Radix Astragali from its adulterants. In this study, we acquired data for 37 samples from four related genera within the family Fabaceae. Then we compared four candidate DNA barcoding markers using ITS, matK, rbcL, and coxI sequences from nuclear, chloroplast, and mitochondrial genomes, all commonly used for plants to identify genetic variations among genera, intraspecies, and interspecies. We observed higher divergences among genera and interspecies for ITS, which have the average Kimura 2-parameter distances of 4.5% and 14.1%, respectively, whereas matK was found to have sufficient divergence at the intraspecific level. Moreover, two indels detected in the matK sequence are useful for PCR studies in distinguishing Radix Astragali from its adulterants. This study suggests that the combined barcoding regions of ITS and matK are superior barcodes for Radix Astragali and further studies should focus on evaluating the applicability and accuracy of such combined markers for a wide range of traditional Chinese herbs. © 2010 Science China Press and Springer-Verlag Berlin Heidelberg.

Chen H.,Tonghua Normal College
Proceedings of 2015 IEEE Advanced Information Technology, Electronic and Automation Control Conference, IAEAC 2015 | Year: 2015

The paper mainly aims at cross sensitivity problems in the measurement process with pressure sensor. Cross sensitivity problems are mainly manifested in the following aspects: pressure measurement is affected by target quantity and interfered by non-target quantity synchronously, such as temperature and other factors. New thought is provided for sensor data fusion due to continuous development of artificial neural network technology. In the paper, multi-sensor data fusion algorithm based on PSO-RBF neural network is proposed on the basis of technology for studying commonly used data fusion methods. PSO Particle Swarm Optimization is utilized for optimizing weight and base width of RBF neural network. Influence of non-target quantity can be eliminated through RBF neural network algorithm under the precondition of fully considering non-target quantities, such as temperature, etc. thereby improving measurement precision of pressure sensor. © 2015 IEEE.

Yue L.,Fudan University | Yue L.,Tonghua Normal College | Meng F.,Tonghua Normal College
Bandaoti Guangdian/Semiconductor Optoelectronics | Year: 2010

Nanocrystalline ZnO films were grown by galvanostatic cathodic electrodeposition from dimethyl sulfoxide solutions containing ZnCl2 on ITO substrates. The influence of deposition temperature on the structural, optical and electrical properties of the ZnO films was studied. XRD shows the ZnO films are of hexagonal wurtzite structure, and the texturation of the films along c direction is enhanced while the band gap and sheet resistivity decrease with the increase of electrolyte temperature. Optical characterizations show that the ZnO films prepared at the temperature below 180°C obain a high optical transmittance up to 80% in the visible wavelength range. A lower sheet resistivity of about 7.57 × 104 Ω/€ can be obtained for the ZnO films prepared under optimum deposition conditions. The AFM pictures indicate that the electrolyte temperature has a significant effect on the grain shape and size of nanocrystalline ZnO films.

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