Micro 3D Printing Advances Biomarker Detection

Researchers in China have used Projection Micro Stereolithography (PµSL) to improve the fabrication of micropillar array electrodes (µAEs) for the identification and detection of biomarkers. PµSL, a micro-precision 3D printing technology from Boston Micro Fabrication (BMF), enabled researchers to produce 3D printed molds for reduced fabrication costs and increased device sensitivity.

Most µAEs are fabricated with traditional processes that are both expensive and time-consuming. Because they limit aspect ratio and pillar height, these lithographic processes also limit the development of low-cost and high-sensitivity microsensors. 3D electrodes with larger surface areas and higher pillars can support larger current densities, but researchers still need a way to produce them cost-effectively. PµSL technology can create master molds for these low-cost, high-sensitivity µAEs.

Using a BMF P140 3D printer, the researchers in China printed a UV-curable …

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