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Femtosecond Laser Microfabrication of an Integrated Device for Optical Release and Sensing of Bioactive Compounds

机译:飞秒激光微加工光学活性物质和生物活性化合物的集成装置

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摘要

Flash photolysis of caged compounds is one of the most powerful approaches to investigate the dynamic response of living cells. Monolithically integrated devices suitable for optical uncaging are in great demand since they greatly simplify the experiments and allow their automation. Here we demonstrate the fabrication of an integrated bio-photonic device for the optical release of caged compounds. Such a device is fabricated using femtosecond laser micromachining of a glass substrate. More in detail, femtosecond lasers are used both to cut the substrate in order to create a pit for cell growth and to inscribe optical waveguides for spatially selective uncaging of the compounds present in the culture medium. The operation of this monolithic bio-photonic device is tested using both free and caged fluorescent compounds to probe its capability of multipoint release and optical sensing. Application of this device to the study of neuronal network activity can be envisaged.
机译:笼状化合物的快速光解是研究活细胞动态响应的最有效方法之一。由于它们极大地简化了实验并允许其自动化,因此对适于光学解开的单片集成器件的需求很大。在这里,我们演示了用于笼式化合物的光学释放的集成生物光子设备的制造。使用飞秒激光微加工玻璃基板来制造这种装置。更详细地讲,飞秒激光既用于切割基板以创建用于细胞生长的凹坑,又用于刻写光波导以对存在于培养基中的化合物进行空间选择性解开包封。使用游离和笼状荧光化合物测试了这种整体式生物光子设备的操作,以探测其多点释放和光学传感的能力。可以设想将该装置应用于神经网络活动的研究。

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