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Microscopic 3D Printing Could Build Structures Inside the Body

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Researchers have used ultrathin optical fibers to create microscopic structures via laser-based 3D printing. The microstructures, which were created on a microscope slide, exhibited a 1.0-µm lateral and 21.5-µm axial printing resolution. The approach could one day be used to build tiny biocompatible structures inside the human body. Current microfabrication techniques rely on two-photon photopolymerization (TPP), a selective curing process that requires complex, expensive lasers and bulky optical systems to deliver light to the photopolymer. The researchers’ use of an...Read full article

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    Published: January 2018
    Glossary
    nonlinear optics
    Nonlinear optics is a branch of optics that studies the optical phenomena that occur when intense light interacts with a material and induces nonlinear responses. In contrast to linear optics, where the response of a material is directly proportional to the intensity of the incident light, nonlinear optics involves optical effects that are not linearly dependent on the input light intensity. These nonlinear effects become significant at high light intensities, such as those produced by...
    two-photon polymerization
    Two-photon polymerization (TPP) is a technique used in additive manufacturing, specifically in the field of 3D printing. It involves using a focused laser to polymerize a photosensitive material in a precise and controlled manner. The process relies on the nonlinear absorption of photons, where two photons are absorbed simultaneously to initiate a chemical reaction that leads to polymerization. Here is a breakdown of the key components and steps involved: Photosensitive material: The...
    3d printing
    3D printing, also known as additive manufacturing (AM), is a manufacturing process that builds three-dimensional objects layer by layer from a digital model. This technology allows the creation of complex and customized structures that would be challenging or impossible with traditional manufacturing methods. The process typically involves the following key steps: Digital design: A three-dimensional digital model of the object is created using computer-aided design (CAD) software. This...
    Research & TechnologyeducationEuropeoptical fibersOpticsLaserscontinuous wave lasersnonlinear opticsBiophotonicstwo-photon polymerization3d printingMicrofabricationbiomedicalBioScan

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