MRI:Development of Coherent Confocal Light Absorption & Scattering Spectroscopic Scanning Microscope

MRI：相干共焦光吸收的发展

• 批准号: 0922876
• 负责人: Lev Perelman
• 金额: $ 49.99万
• 依托单位: Beth Israel Deaconess Medical Center
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0922876&HistoricalAwards=false
• 关键词: MRI; Development; Coherent; Confocal; Light

0922876PerelmanThe overall objective of this project is to develop and test a novel major research instrument, Coherent Confocal Light Absorption and Scattering Spectroscopic Scanning Microscope (or C-CLASS Scanning Microscope), for non-invasive dynamic monitoring of subcellular structure which can be used in multiple areas of biomedical research. This instrument will scan biological cells with a coherent broadband supercontinuum focused laser beam and collect elastically scattered light using a confocal arrangement. Collected light, elastically scattered by various subcellular organelles and structures, will provide real time information about the morphological, biochemical and physical properties of various regions of the living cell and their function.This new C-CLASS instrument will provide dramatically higher spectral contrast compared to existing incoherent CLASS instruments. The design of the C-CLASS instrument will utilize several major parts of a commercially available Olympus confocal microscope system suitably modified to perform C-CLASS. Development of this instrument will have broad impact in such diverse areas as cell biology, reproductive biology, obstetrics, neuroscience and drug discovery that are all linked by the potential of this technique to observe functional intracellular processes nondestructively. Another important application of this instrument will be in the area of designing optical nanoprobes with specific spectroscopic characteristics for molecular imaging. Human embryo development, quality, and response to environmental factors, might be monitored progressively at all critical stages, using the C-CLASS Scanning Microscope. Because the C-CLASS measurement is nondestructive and requires no exogenous chemicals, a given embryo in vitro could be monitored over time and still be suitable for implantation. These progression studies are not possible with currently available techniques.

[0922876] perelman该项目的总体目标是开发和测试一种新的主要研究仪器，相干共聚焦光吸收和散射光谱扫描显微镜（或C-CLASS扫描显微镜），用于亚细胞结构的无创动态监测，可用于生物医学研究的多个领域。该仪器将使用相干宽带超连续聚焦激光束扫描生物细胞，并使用共聚焦排列收集弹性散射光。收集的光，通过各种亚细胞细胞器和结构的弹性散射，将提供有关活细胞各个区域及其功能的形态学，生化和物理特性的实时信息。与现有的非相干类仪器相比，这种新的C-CLASS仪器将提供更高的光谱对比度。C-CLASS仪器的设计将利用市售奥林巴斯共聚焦显微镜系统的几个主要部分进行适当修改，以执行C-CLASS。该仪器的发展将在细胞生物学、生殖生物学、产科、神经科学和药物发现等不同领域产生广泛的影响，这些领域都与该技术无损观察细胞内功能过程的潜力有关。该仪器的另一个重要应用将是设计具有特定光谱特征的光学纳米探针，用于分子成像。使用C-CLASS扫描显微镜，可以在所有关键阶段逐步监测人类胚胎的发育，质量和对环境因素的反应。由于C-CLASS测量是非破坏性的，不需要外源性化学物质，因此可以对体外给定的胚胎进行长期监测，并且仍然适合植入。这些进展研究在现有技术下是不可能的。