Imaging and Biosensors Core

成像和生物传感器核心将提供专门的成像技术和荧光生物传感器 三个项目的组成部分。激光扫描和旋转圆盘共聚焦显微镜，多光子 显微镜、多线全内反射荧光（TIRF）显微镜、FRAP、光活化和 将为研究者提供卡利（生色团辅助激光灭活）。此外该 Core将能够根据需要提供牵引力成像。培训构成部分的人员 将提供有关成像实验设计的项目和建议。 该核心还将为Rho家族蛋白和SGEF提供活细胞生物传感器，并协助其 应用程序.哈恩实验室开创了活细胞中Rho家族蛋白激活的研究。程序 项目成员将使用已发表的生物传感器以及最近开发的方法， 提高灵敏度和减少对活细胞的扰动。核心还将协助应用 其他实验室开发的生物传感器。 核心主任在成像方法学（FRAP， 单颗粒跟踪、牵引力成像、光活化和卡利应用于细胞粘附 移民）。同样，核心联合主任一直是生物传感器开发领域的领导者 (live钙调素-钙结合的细胞指标，Rac，Cdc 42和Rho核苷酸状态，MAP激酶 磷酸化和用于体内蛋白质活性成像的荧光染料）。

The Imaging and Biosensor Core will provide specialized imaging techniques and fluorescence biosensors for the three component projects. Laser scanning and spinning disc confocal microscopy, multi-photon microscopy, multi-line total internal reflection fluorescence (TIRF) microscopy, FRAP, photoactivation and CALI (Chromophore Assisted Laser Inactivation) will be provided for the investigators. In addition, the Core will be able to provide traction force imaging as needed. Training of individuals from the component projects and advice on the design of imaging experiments will be provided. The core will also provide live cell biosensors for Rho family proteins and SGEF, and assist in their application. The Hahn lab has pioneered study of Rho family protein activation in living cells. Program project members will use published biosensors together with recently developed approaches that greatly enhance sensitivity and decrease perturbation of living cells. The core will also assist in application of biosensors developed by other laboratories. The Core Director has a long history of producing seminal developments in imaging methodogies (FRAP, single particle tracking, traction force imaging, and photoactivation and CALI as applied to cell adhesion and migration). Similarly, the Core Co-director has been a leader in the field of biosensor development (live cell indicators of Calmodulin-calcium binding, Rac, Cdc42 and Rho nucleotide state, MAP kinase phosphorylation, and fluorescent dyes for imaging of protein activity in vivo).