3D Printed and Microcontrolled: The One Hundred Dollars Scanning Electrochemical Microscope
3D Printed and Microcontrolled: The One Hundred Dollars Scanning Electrochemical Microscope
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DOI：
10.1021/acs.analchem.7b01764
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发表时间：
2017-09-05
影响因子：
7.4
通讯作者：
Meloni, Gabriel N.
中科院分区：
文献类型：
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作者：
Meloni, Gabriel N.
介绍了一种多功能、低成本的电化学扫描探针显微镜（EC-SPM）的设计与制作。拟议的设备依赖于使用现代原型工具，如3D打印机和微控制器板，只有几个“现成”的部分，以提供一个简单而强大的EC-SPM设备，能够执行简单的空间分辨电化学测量。该设备能够进行空间分辨的电化学测量，使用铂超微电极（UME）作为工作电极上的扫描电化学显微镜（SECM）配置，并用于记录的方法曲线，线扫描，和阵列扫描在绝缘基板。所提出的设备的性能被认为是足够的阻碍扩散条件下的简单SECM测量。由于其灵活的设计（软件和硬件），更复杂的阵列扫描模式，只有在高端EC-SPM设置，如跳跃模式扫描，很容易实现的内置设备。尽管它的简单性，多功能性和低成本的建议的设计使它成为一个有吸引力的替代作为教学平台，以及开发更复杂的EC-SPM设置的平台。
The design and fabrication of a versatile and low-cost electrochemical scanning probe microscope (EC-SPM) is presented. The proposed equipment relies on the use of modern prototyping tools such as 3D printers and microcontroller boards and only a few "off-the-shelf' parts to deliver a simple yet powerful EC-SPM equipment capable of performing simple space-resolved electrochemical measurements. The equipment was able to perform space-resolved electrochemical measurements using a platinum ultramicroelectrode (UME) as the working electrode on a scanning electrochemical microscopy (SECM) configuration and was used to record approach curves, line scans, and array scans over an insulating substrate. The performance of the proposed equipment was found to be adequate for simple SECM measurements under hindered diffusion conditions. Because of its flexible design (software and hardware), more complex array scan patterns, only found on high-end EC-SPM setups such as hopping mode scan, were easily implemented on the built equipment. Despite its simplicity, the versatility and low cost of the proposed design make it an attractive alternative as a teaching platform as well as a platform for developing more elaborate EC-SPM setups.