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Study on the most early glass eye-beads in China unearthed from Xu Jialing Tomb in Xichuan of Henan Province,China

Science China(Technological Sciences) 2009年第4期52卷 922-927页

作者： GAN FuXi CHENG huanSheng hu yongqing MA Bo GU DongHong Shanghai Institute of Optics and Fine Mechanics Chinese Academy of SciencesShanghiai 201800China Fudan University Shanghai 200433China Henan Research Institute of Cultural Relics and Archaeology Zhengzhou 450000China

The eye-beads dating to the early Warring States Period unearthed from Xu Jialing Tomb in Xichuan County of Henan Province, China are studied. The structure and the chemical composition of the sam- ples are analysed by the undestructive methods of X-ray diffraction (XRD) and the Proton Induced X-ray Emission (PIXE) technique. The results show that these eye-beads are of glass state. Its chemical composition indicates that they belong to the glass of soda lime silicate system (Na2O-CaO-SiO2). By comparing the decorative design and the chemical composition of the samples with those from ancient Babylon and ancient Egypt, we think that these ancient eye-beads in Xichuan were most possibly im- ported from the West.

关键词： glass eye-beads origin ancient exchange between China and the west chemical composition analysis

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炎症与正常牙周膜来源牙周膜干细胞的成骨分化能力和自噬水平

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中国组织工程研究 2025年第1期29卷 74-79页

作者：毛家奇赵力如杨冬茹胡永青代博文李淑娟河北医科大学口腔医学院•口腔医院牙周一科河北省口腔医学重点实验室河北省口腔疾病临床医学研究中心河北省石家庄市050017 河北医科大学口腔医学院•口腔医院正畸科河北省口腔医学重点实验室河北省口腔疾病临床医学研究中心河北省石家庄市050017 河北医科大学河北省石家庄市050017

背景:炎症影响牙周膜干细胞的成骨分化,同时牙周膜干细胞的成骨能力与自噬水平密切相关,但是炎症是否影响牙周膜干细胞成骨分化不同阶段的成骨能力与自噬水平尚未见相关报道。目的:探讨牙周膜干细胞在牙周炎和正常状态下的碱性磷酸酶表... 详细信息

背景:炎症影响牙周膜干细胞的成骨分化,同时牙周膜干细胞的成骨能力与自噬水平密切相关,但是炎症是否影响牙周膜干细胞成骨分化不同阶段的成骨能力与自噬水平尚未见相关报道。目的:探讨牙周膜干细胞在牙周炎和正常状态下的碱性磷酸酶表达和自噬水平。方法:分离培养健康人群与牙周炎患者的牙周膜干细胞,进行Vimentin、pan-CK和Stro-1荧光染色。正常和炎症牙周膜干细胞成骨分化3,7,14d时,Westernblot检测碱性磷酸酶、LC3B、Beclin1、ATG5的蛋白表达,real-time PCR检测碱性磷酸酶、骨唾液蛋白、骨钙素、Runx2、LC3B、Beclin1、ATG5的mRNA表达。结果与结论:(1)牙周膜干细胞内Stro-1阳性表达,Vimentin阳性表达,pan-CK阴性表达;(2)成骨分化3,7,14 d,与正常牙周膜干细胞相比,炎症牙周膜干细胞所形成的矿化结节明显减少(P<0.01),碱性磷酸酶的蛋白和mRNA表达明显降低(P<0.05),骨唾液蛋白、骨钙素、Runx2的mRNA表达明显降低(P<0.05);(3)成骨分化7,14 d,与正常牙周膜干细胞相比,炎症牙周膜干细胞的ATG5、LC3B与Beclin1蛋白和mRNA表达均明显降低(P<0.05)。结果表明,炎症可减少牙周膜干细胞的矿化结节形成和碱性磷酸酶的表达,削弱牙周膜干细胞成骨分化7,14 d的自噬潜能。

关键词：牙周膜干细胞牙周炎碱性磷酸酶自噬炎症成骨分化

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Multi-technique analysis of an ancient stratified glass eye bead by OCT, μ-XRF, and μ-Raman spectroscopy

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Chinese Optics Letters 2020年第9期18卷 1-7页

作者： Junqing Dong Qinghui Li yongqing hu Sci-Tech Archaeology Center Laboratory of Micro-Nano Optoelectronic Materials and DevicesKey Laboratory of Materials for High-Power LaserShanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Henan Provincial Institute of Cultural Relics and Archaeology Zhengzhou 450000China

In this Letter, we report a combination of non-invasive analysis of the cross-section structure, phase, and chemical composition combining optical coherence tomography(OCT) with spectroscopic methods such as X-ray analytical microscope(μ-XRF) and micro-Raman spectroscopy(μ-RS), which allow us to effectively and conveniently identify the colorants used for each color region and the glass-making process of an ancient multicolored stratified glass eye bead. The results reveal that the sophisticated colors of the glass bead arise from the transition metals and chemical compound crystals deliberately added in the same base glass and carefully adjusted by the glass maker to obtain four colors. We also propose and discuss the provenance of the glass *** was probably introduced to China through the Northern Silk Road from Egypt or the Eastern Mediterranean areas about 1400 years ago. The combined multi-analytical technique is the promising approach for precious cultural heritage research.

关键词： multi-spectroscopic methods combination of non-invasive analysis ancient stratified glass cross-section structure chemical composition glass-making process

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