Biomass materials, an important source of chemical feedstocks, could replace fossil fuels as a resource in the future. The chemical feedstocks from biomass materials are used in many medical and pharmaceutical products and in fuels, chemicals, and functional materials. Biomass materials are expected to be used in biomedical engineering fields, especially due to their low biotoxicity. By the way, most of the demand for bio-application fields is an application targeted for customized production, so a high formability is required for production. Research on three-dimensional (3D) printing technology capable of satisfying these requirements has been ongoing. Manufacturing additives need to be investigated to use biomass materials as a resin or bioink safely for 3D printing, which is a technique widely used in biomedical engineering fields. In this study, a projection microstereolithography (PμSL) system, a 3D printing technique, was made that uses a biomass-based resin. Biomass materials are designed to be photocurable for use in the PμSL process. Various PμSL process parameters were investigated using the biomass-based resin to determine the optimum fabrication conditions for 3D structures. This study demonstrated that a biomass-based resin can be used in the PμSL process. We provide a method for its application in various biomedical engineering fields.

中文翻译：

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光固化生物质基树脂的投影微立体光刻工艺优化

生物质材料是化学原料的重要来源，未来可能取代化石燃料成为一种资源。来自生物质材料的化学原料用于许多医疗和制药产品以及燃料、化学品和功能材料。生物质材料有望用于生物医学工程领域，特别是由于其低生物毒性。顺带一提，生物应用领域的需求大多是针对定制化生产的应用，因此对生产的成型性要求很高。能够满足这些要求的三维 (3D) 打印技术的研究一直在进行中。需要研究制造添加剂，以安全地使用生物质材料作为树脂或生物墨水进行 3D 打印，这是一种广泛应用于生物医学工程领域的技术。在这项研究中，投影微立体光刻 (PμSL) 系统是一种使用生物质基树脂的 3D 打印技术。生物质材料被设计为可光固化，用于 PμSL 工艺。使用生物质基树脂研究了各种 PμSL 工艺参数，以确定 3D 结构的最佳制造条件。该研究表明，生物质基树脂可用于 PμSL 工艺。我们为其在各种生物医学工程领域的应用提供了一种方法。使用生物质基树脂研究了各种 PμSL 工艺参数，以确定 3D 结构的最佳制造条件。该研究表明，生物质基树脂可用于 PμSL 工艺。我们为其在各种生物医学工程领域的应用提供了一种方法。使用生物质基树脂研究了各种 PμSL 工艺参数，以确定 3D 结构的最佳制造条件。该研究表明，生物质基树脂可用于 PμSL 工艺。我们为其在各种生物医学工程领域的应用提供了一种方法。