Xuanwen Wang, Xiaoliang Cui, Hui Wang, Jun Zhang, Ke-Qin Zhang
{"title":"突破软质材料印刷的障碍:通过高度调节固化和局部误差优化的丝胶高保真DLP制造","authors":"Xuanwen Wang, Xiaoliang Cui, Hui Wang, Jun Zhang, Ke-Qin Zhang","doi":"10.1016/j.addma.2025.104877","DOIUrl":null,"url":null,"abstract":"<div><div>Digital Light Processing (DLP) faces significant challenges in printing ultra-soft hydrogels due to their weak mechanical properties and the lack of robust accuracy evaluation systems. Here, we overcome these limitations by introducing silk sericin (SS) - a protein recovered from alkaline thermal degumming water - as a sustainable bioink. Through glycidyl methacrylate (GMA) modification, we developed methacrylated silk sericin (SerMA) with enhanced curability while preserving its inherent biocompatibility. A \"Height Gradient Screening\" approach was innovatively applied to the Jacob's working curve, enabling precise determination of cured depth under real-world printing conditions by addressing light scattering and self-focusing effects. Furthermore, we proposed the \"Tangent Cylindrical Model\", a novel framework to quantify localized printing errors across dynamic illumination source spacings, achieving resolutions as fine as 300 µm channel gaps and 400 µm hole structures-surpassing current capabilities for weak hydrogels. The printed SerMA constructs demonstrated excellent cytocompatibility (L929 cell viability>95 % over 168 h) and supported cell adhesion/spreading, validated via Live/Dead assays and F-actin staining. This work not only expands the DLP material library to include recovered, mechanically fragile proteins but also establishes a universal methodology for high-precision printing of soft biomaterials, with direct implications for tissue engineering, microfluidics, and biosensing.</div></div>","PeriodicalId":7172,"journal":{"name":"Additive manufacturing","volume":"109 ","pages":"Article 104877"},"PeriodicalIF":11.1000,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Breaking barriers in soft material printing: High-fidelity DLP fabrication of silk sericin via height-adjusted curing and local error optimization\",\"authors\":\"Xuanwen Wang, Xiaoliang Cui, Hui Wang, Jun Zhang, Ke-Qin Zhang\",\"doi\":\"10.1016/j.addma.2025.104877\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Digital Light Processing (DLP) faces significant challenges in printing ultra-soft hydrogels due to their weak mechanical properties and the lack of robust accuracy evaluation systems. Here, we overcome these limitations by introducing silk sericin (SS) - a protein recovered from alkaline thermal degumming water - as a sustainable bioink. Through glycidyl methacrylate (GMA) modification, we developed methacrylated silk sericin (SerMA) with enhanced curability while preserving its inherent biocompatibility. A \\\"Height Gradient Screening\\\" approach was innovatively applied to the Jacob's working curve, enabling precise determination of cured depth under real-world printing conditions by addressing light scattering and self-focusing effects. Furthermore, we proposed the \\\"Tangent Cylindrical Model\\\", a novel framework to quantify localized printing errors across dynamic illumination source spacings, achieving resolutions as fine as 300 µm channel gaps and 400 µm hole structures-surpassing current capabilities for weak hydrogels. The printed SerMA constructs demonstrated excellent cytocompatibility (L929 cell viability>95 % over 168 h) and supported cell adhesion/spreading, validated via Live/Dead assays and F-actin staining. This work not only expands the DLP material library to include recovered, mechanically fragile proteins but also establishes a universal methodology for high-precision printing of soft biomaterials, with direct implications for tissue engineering, microfluidics, and biosensing.</div></div>\",\"PeriodicalId\":7172,\"journal\":{\"name\":\"Additive manufacturing\",\"volume\":\"109 \",\"pages\":\"Article 104877\"},\"PeriodicalIF\":11.1000,\"publicationDate\":\"2025-07-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Additive manufacturing\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2214860425002416\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MANUFACTURING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Additive manufacturing","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214860425002416","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
Breaking barriers in soft material printing: High-fidelity DLP fabrication of silk sericin via height-adjusted curing and local error optimization
Digital Light Processing (DLP) faces significant challenges in printing ultra-soft hydrogels due to their weak mechanical properties and the lack of robust accuracy evaluation systems. Here, we overcome these limitations by introducing silk sericin (SS) - a protein recovered from alkaline thermal degumming water - as a sustainable bioink. Through glycidyl methacrylate (GMA) modification, we developed methacrylated silk sericin (SerMA) with enhanced curability while preserving its inherent biocompatibility. A "Height Gradient Screening" approach was innovatively applied to the Jacob's working curve, enabling precise determination of cured depth under real-world printing conditions by addressing light scattering and self-focusing effects. Furthermore, we proposed the "Tangent Cylindrical Model", a novel framework to quantify localized printing errors across dynamic illumination source spacings, achieving resolutions as fine as 300 µm channel gaps and 400 µm hole structures-surpassing current capabilities for weak hydrogels. The printed SerMA constructs demonstrated excellent cytocompatibility (L929 cell viability>95 % over 168 h) and supported cell adhesion/spreading, validated via Live/Dead assays and F-actin staining. This work not only expands the DLP material library to include recovered, mechanically fragile proteins but also establishes a universal methodology for high-precision printing of soft biomaterials, with direct implications for tissue engineering, microfluidics, and biosensing.
期刊介绍:
Additive Manufacturing stands as a peer-reviewed journal dedicated to delivering high-quality research papers and reviews in the field of additive manufacturing, serving both academia and industry leaders. The journal's objective is to recognize the innovative essence of additive manufacturing and its diverse applications, providing a comprehensive overview of current developments and future prospects.
The transformative potential of additive manufacturing technologies in product design and manufacturing is poised to disrupt traditional approaches. In response to this paradigm shift, a distinctive and comprehensive publication outlet was essential. Additive Manufacturing fulfills this need, offering a platform for engineers, materials scientists, and practitioners across academia and various industries to document and share innovations in these evolving technologies.