项目名称: 基于同步辐射X射线多元标记蛋白成像新方法的研究
项目编号: No.61475181
项目类型: 面上项目
立项/批准年度: 2015
项目学科: 无线电电子学、电信技术
项目作者: 蔡小青
作者单位: 中国科学院上海应用物理研究所
项目金额: 80万元
中文摘要: 同步辐射X射线显微成像技术,其突出的优势在于比光学显微成像技术高得多的空间分辨率,比电子显微成像技术大得多的穿透能力,而且可以对样品进行直接、无损成像。同时同步辐射X射线显微成像线站还可以通过扫描模式获得具有元素识别能力的谱学显微图像,X射线精细结构光谱对不同元素具有很好的分辨特性,而且相互之间的干扰很少,明显优于荧光显微成像。本项目从X射线良好光谱特性出发,研制和发展适合同步辐射X射线显微成像的纳米生物探针,标记4-5种细胞亚细胞器的特征蛋白质,发展同步辐射X射线多元标记蛋白成像的新方法,为蛋白质的细胞内定位和相互作用研究提供新的成像方法。本项目的实施有望推动我国同步辐射X射线显微成像技术研究的发展,也能够为X射线显微成像技术在生命科学更广泛的应用提供基础研究的技术支撑。
中文关键词: 同步辐射;纳米生物成像探针;多元标记蛋白成像;X射线成像
英文摘要: The outstanding advantages of X-ray imaging are: higher spatial resolution than optical imaging, better penetration than TEM, and the ability to perform direct and nondestructive imaging. A synchrotron radiation X-ray imaging line station can also provide spectroscopic images, with the ability to identify elemental composition. X-ray fine structure spectroscopy can distinguish between elements, at higher resolution and lower interference than fluorescence microscopy. Based on these advantages of the X-ray spectrum, this project builds new nano-biological probes which are suitable for synchrotron radiation X -ray imaging. We describe herein a new method of X-ray multiple marker protein imaging, for finding the location and interaction of specific labeled proteins in subcellular organelles. Our study advances the science of synchrotron X-ray imaging in our country and also provides basic research support for broader applications of X-ray imaging in biological science.
英文关键词: synchrotron radiation;nano-biological imaging probes;multi-marker protein imaging;X-ray imaging