The presented 3D glass array has 10×10 up to 2 mm long optrodes at a 400µm pitch and has high efficiency and control of light delivery. What’s more important, the authors point out that their fabrication process allows alteration in array size, length and spacing along with the width and tip angle, making it an ideal candidate for future customization. These features make this system an ideal tool for exploring new applications for frontiers in light-tissue interactions.
In summary, the presented first-generation of optrode arrays should become a new standard for the efficient and precise delivery of optical signal for spatio-temporal deep tissue stimulation.
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