1
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Zheng B, Xie Y, Xu S, Meng AC, Wang S, Wu Y, Yang S, Wan C, Huang G, Tour JM, Lin J. Programmed multimaterial assembly by synergized 3D printing and freeform laser induction. Nat Commun 2024; 15:4541. [PMID: 38806541 DOI: 10.1038/s41467-024-48919-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 05/14/2024] [Indexed: 05/30/2024] Open
Abstract
In nature, structural and functional materials often form programmed three-dimensional (3D) assembly to perform daily functions, inspiring researchers to engineer multifunctional 3D structures. Despite much progress, a general method to fabricate and assemble a broad range of materials into functional 3D objects remains limited. Herein, to bridge the gap, we demonstrate a freeform multimaterial assembly process (FMAP) by integrating 3D printing (fused filament fabrication (FFF), direct ink writing (DIW)) with freeform laser induction (FLI). 3D printing performs the 3D structural material assembly, while FLI fabricates the functional materials in predesigned 3D space by synergistic, programmed control. This paper showcases the versatility of FMAP in spatially fabricating various types of functional materials (metals, semiconductors) within 3D structures for applications in crossbar circuits for LED display, a strain sensor for multifunctional springs and haptic manipulators, a UV sensor, a 3D electromagnet as a magnetic encoder, capacitive sensors for human machine interface, and an integrated microfluidic reactor with a built-in Joule heater for nanomaterial synthesis. This success underscores the potential of FMAP to redefine 3D printing and FLI for programmed multimaterial assembly.
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Affiliation(s)
- Bujingda Zheng
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO, 65201, USA
| | - Yunchao Xie
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO, 65201, USA
| | - Shichen Xu
- Department of Chemistry, Rice University, Houston, 77005, TX, USA
| | - Andrew C Meng
- Department of Physics and Astronomy, University of Missouri, Columbia, MO, 65201, USA
| | - Shaoyun Wang
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO, 65201, USA
| | - Yuchao Wu
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO, 65201, USA
| | - Shuhong Yang
- Department of Chemical and Biomedical Engineering, University of Missouri, Columbia, MO, 65201, USA
| | - Caixia Wan
- Department of Chemical and Biomedical Engineering, University of Missouri, Columbia, MO, 65201, USA
| | - Guoliang Huang
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO, 65201, USA
| | - James M Tour
- Department of Chemistry, Rice University, Houston, 77005, TX, USA
- Department of Materials Science and Nano Engineering, Rice University, 6100 Main Street, Houston, 77005, TX, USA
- Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, 77005, TX, USA
| | - Jian Lin
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO, 65201, USA.
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Chin KCH, Ovsepyan G, Boydston AJ. Multi-color dual wavelength vat photopolymerization 3D printing via spatially controlled acidity. Nat Commun 2024; 15:3867. [PMID: 38719871 PMCID: PMC11078982 DOI: 10.1038/s41467-024-48159-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 04/23/2024] [Indexed: 05/12/2024] Open
Abstract
Dual wavelength vat photopolymerization (DW-VP) has emerged as a powerful approach to create multimaterial objects. However, only a limited range of properties have been showcased. In this work, we report the 3D printing (3DP) of multi-color objects from a single resin vat using DW-VP. This was accomplished by concurrently curing resin with visible light and modulating local resin color with 365-nm ultraviolet (UV) light. The key advance was to use a photoacid generator (PAG) in combination with pH responsive dyes in the 3DP resins. The specific color is dictated by the extent of reaction, or local acidity in our case, and controlled by the light dosage and pattern of UV light applied. Multi-color object formation was implemented in two-step processes involving first 3DP to set the object structure, followed by UV exposure, as well as single processes that leveraged DW-VP to create a broad range of vibrant colors and patterns.
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Affiliation(s)
- Kyle C H Chin
- Department of Chemical and Biological Engineering, University of Wisconsin, Madison, WI, 53706, USA
| | - Grant Ovsepyan
- Department of Chemical and Biological Engineering, University of Wisconsin, Madison, WI, 53706, USA
| | - Andrew J Boydston
- Department of Chemical and Biological Engineering, University of Wisconsin, Madison, WI, 53706, USA.
- Department of Chemistry, University of Wisconsin, Madison, WI, 53706, USA.
- Department of Materials Science and Engineering, University of Wisconsin, Madison, WI, 53706, USA.
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3
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Wan X, Xiao Z, Tian Y, Chen M, Liu F, Wang D, Liu Y, Bartolo PJDS, Yan C, Shi Y, Zhao RR, Qi HJ, Zhou K. Recent Advances in 4D Printing of Advanced Materials and Structures for Functional Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2312263. [PMID: 38439193 DOI: 10.1002/adma.202312263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 03/01/2024] [Indexed: 03/06/2024]
Abstract
4D printing has attracted tremendous worldwide attention during the past decade. This technology enables the shape, property, or functionality of printed structures to change with time in response to diverse external stimuli, making the original static structures alive. The revolutionary 4D-printing technology offers remarkable benefits in controlling geometric and functional reconfiguration, thereby showcasing immense potential across diverse fields, including biomedical engineering, electronics, robotics, and photonics. Here, a comprehensive review of the latest achievements in 4D printing using various types of materials and different additive manufacturing techniques is presented. The state-of-the-art strategies implemented in harnessing various 4D-printed structures are highlighted, which involve materials design, stimuli, functionalities, and applications. The machine learning approach explored for 4D printing is also discussed. Finally, the perspectives on the current challenges and future trends toward further development in 4D printing are summarized.
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Affiliation(s)
- Xue Wan
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Zhongmin Xiao
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Yujia Tian
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Mei Chen
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- HP-NTU Digital Manufacturing Corporate Lab, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Feng Liu
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Dong Wang
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yong Liu
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Paulo Jorge Da Silva Bartolo
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Chunze Yan
- State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yusheng Shi
- State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Ruike Renee Zhao
- Department of Mechanical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Hang Jerry Qi
- School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Kun Zhou
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- HP-NTU Digital Manufacturing Corporate Lab, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
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Darghiasi SF, Farazin A, Ghazali HS. Design of bone scaffolds with calcium phosphate and its derivatives by 3D printing: A review. J Mech Behav Biomed Mater 2024; 151:106391. [PMID: 38211501 DOI: 10.1016/j.jmbbm.2024.106391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/05/2024] [Accepted: 01/07/2024] [Indexed: 01/13/2024]
Abstract
Tissue engineering is a fascinating field that combines biology, engineering, and medicine to create artificial tissues and organs. It involves using living cells, biomaterials, and bioengineering techniques to develop functional tissues that can be used to replace or repair damaged or diseased organs in the human body. The process typically starts by obtaining cells from the patient or a donor. These cells are then cultured and grown in a laboratory under controlled conditions. Scaffold materials, such as biodegradable polymers or natural extracellular matrices, are used to provide support and structure for the growing cells. 3D bone scaffolds are a fascinating application within the field of tissue engineering. These scaffolds are designed to mimic the structure and properties of natural bone tissue and serve as a temporary framework for new bone growth. The main purpose of a 3D bone scaffold is to provide mechanical support to the surrounding cells and guide their growth in a specific direction. It acts as a template, encouraging the formation of new bone tissue by providing a framework for cells to attach, proliferate, and differentiate. These scaffolds are typically fabricated using biocompatible materials like ceramics, polymers, or a combination of both. The choice of material depends on factors such as strength, biodegradability, and the ability to facilitate cell adhesion and growth. Advanced techniques like 3D printing have revolutionized the fabrication process of these scaffolds. Using precise layer-by-layer deposition, it allows for the creation of complex, patient-specific geometries, mimicking the intricacies of natural bone structure. This article offers a brief overview of the latest developments in the research and development of 3D printing techniques for creating scaffolds used in bone tissue engineering.
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Affiliation(s)
- Seyedeh Farnaz Darghiasi
- Department of Mechanical & Biomedical Engineering, Boise State University, Boise, ID, USA; Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST), P.O. Box 16846-13114, Tehran, Iran
| | - Ashkan Farazin
- Department of Solid Mechanics, Faculty of Mechanical Engineering, University of Kashan, P.O. Box 87317-53153, Kashan, Iran; Department of Mechanical Engineering, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, NJ, 07030, USA
| | - Hanieh Sadat Ghazali
- Department of Civil and Mechanical Engineering, University of Missouri-Kansas City, Kansas City, MO, 64110, USA.
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Goodarzi Hosseinabadi H, Biswas A, Bhusal A, Yousefinejad A, Lall A, Zimmermann WH, Miri AK, Ionov L. 4D-Printable Photocrosslinkable Polyurethane-Based Inks for Tissue Scaffold and Actuator Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306387. [PMID: 37771189 PMCID: PMC10922657 DOI: 10.1002/smll.202306387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Indexed: 09/30/2023]
Abstract
4D printing recently emerges as an exciting evolution of conventional 3D printing, where a printed construct can quickly transform in response to a specific stimulus to switch between a temporary variable state and an original state. In this work, a photocrosslinkable polyethylene-glycol polyurethane ink is synthesized for light-assisted 4D printing of smart materials. The molecular weight distribution of the ink monomers is tunable by adjusting the copolymerization reaction time. Digital light processing (DLP) technique is used to program a differential swelling response in the printed constructs after humidity variation. Bioactive microparticles are embedded into the ink and the improvement of biocompatibility of the printed constructs is demonstrated for tissue engineering applications. Cell studies reveal above 90% viability in 1 week and ≈50% biodegradability after 4 weeks. Self-folding capillary scaffolds, dynamic grippers, and film actuators are made and activated in a humid environment. The approach offers a versatile platform for the fabrication of complex constructs. The ink can be used in tissue engineering and actuator applications, making the ink a promising avenue for future research.
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Affiliation(s)
- Hossein Goodarzi Hosseinabadi
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447, Bayreuth, Germany
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany
- Institute for Organic and Biomolecular Chemistry, Department of Chemistry, University of Göttingen, 37077, Göttingen, Germany
| | - Arpan Biswas
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447, Bayreuth, Germany
| | - Anant Bhusal
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, 08028, USA
| | - Ali Yousefinejad
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447, Bayreuth, Germany
| | - Aastha Lall
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447, Bayreuth, Germany
| | - Wolfram-Hubertus Zimmermann
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, 37099, Göttingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), 37099, Göttingen, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Göttingen, Germany
| | - Amir K Miri
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, 08028, USA
- Department of Biomedical Engineering, New Jersey Institute of Technology, 323 Dr. Martin Luther King Jr. Blvd., Newark, NJ, 07102, USA
- Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, 323 Dr. Martin Luther King Jr. Blvd, Newark, NJ, 07102, USA
| | - Leonid Ionov
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447, Bayreuth, Germany
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Yue L, Su YL, Li M, Yu L, Sun X, Cho J, Brettmann B, Gutekunst WR, Ramprasad R, Qi HJ. Chemical Circularity in 3D Printing with Biobased Δ-Valerolactone. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2310040. [PMID: 38291858 DOI: 10.1002/adma.202310040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/09/2024] [Indexed: 02/01/2024]
Abstract
Digital Light Processing (DLP) is a vat photopolymerization-based 3D printing technology that fabricates parts typically made of chemically crosslinked polymers. The rapidly growing DLP market has an increasing demand for polymer raw materials, along with growing environmental concerns. Therefore, circular DLP printing with a closed-loop recyclable ink is of great importance for sustainability. The low-ceiling temperature alkyl-substituted δ-valerolactone (VL) is an industrially accessible biorenewable feedstock for developing recyclable polymers. In this work, acrylate-functionalized poly(δ-valerolactone) (PVLA), synthesized through the ring-opening transesterification polymerization of VL, is used as a platform photoprecursor to improve the chemical circularity in DLP printing. A small portion of photocurable reactive diluent (RD) turns the unprintable PVLA into DLP printable ink. Various photocurable monomers can serve as RDs to modulate the properties of printed structures for applications like sacrificial molds, soft actuators, sensors, etc. The intrinsic depolymerizability of PVLA is well preserved, regardless of whether the printed polymer is a thermoplastic or thermoset. The recovery yield of virgin quality VL monomer is 93% through direct bulk thermolysis of the printed structures. This work proposes the utilization of depolymerizable photoprecursors and highlights the feasibility of biorenewable VL as a versatile material platform toward circular DLP printing.
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Affiliation(s)
- Liang Yue
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Yong-Liang Su
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Mingzhe Li
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Luxia Yu
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Xiaohao Sun
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jaehyun Cho
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Blair Brettmann
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Will R Gutekunst
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Rampi Ramprasad
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - H Jerry Qi
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- Rewable Bioproduct Institute, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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Wu H, Luo R, Li Z, Tian Y, Yuan J, Su B, Zhou K, Yan C, Shi Y. Additively Manufactured Flexible Liquid Metal-Coated Self-Powered Magnetoelectric Sensors with High Design Freedom. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2307546. [PMID: 38145802 DOI: 10.1002/adma.202307546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 12/19/2023] [Indexed: 12/27/2023]
Abstract
Although additive manufacturing enables controllable structural design and customized performance for magnetoelectric sensors, their design and fabrication still require careful matching of the size and modulus between the magnetic and conductive components. Achieving magnetoelectric integration remains challenging, and the rigid coils limit the flexibility of the sensors. To overcome these obstacles, this study proposes a composite process combining selective laser sintering (SLS) and 3D transfer printing for fabricating flexible liquid metal-coated magnetoelectric sensors. The liquid metal forms a conformal conductive network on the SLS-printed magnetic lattice structure. Deformation of the structure alters the magnetic flux passing through it, thereby generating voltage. A reverse model segmentation and summation method is established to calculate the theoretical magnetic flux. The impact of the volume fraction, unit size, and height of the sensors on the voltage is studied, and optimization of these factors yields a maximum voltage of 45.6 µV. The sensor has excellent sensing performance with a sensitivity of 10.9 kPa-1 and a minimum detection pressure of 0.1 kPa. The voltage can be generated through various external forces. This work presents a significant advancement in fabricating liquid metal-based magnetoelectric sensors by improving their structural flexibility, magnetoelectric integration, and design freedom.
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Affiliation(s)
- Hongzhi Wu
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Ruiying Luo
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China
| | - Zhuofan Li
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China
| | - Yujia Tian
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Jiayi Yuan
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China
| | - Bin Su
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China
| | - Kun Zhou
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Chunze Yan
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China
| | - Yusheng Shi
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China
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Yue L, Sun X, Yu L, Li M, Montgomery SM, Song Y, Nomura T, Tanaka M, Qi HJ. Cold-programmed shape-morphing structures based on grayscale digital light processing 4D printing. Nat Commun 2023; 14:5519. [PMID: 37684245 PMCID: PMC10491591 DOI: 10.1038/s41467-023-41170-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Shape-morphing structures that can reconfigure their shape to adapt to diverse tasks are highly desirable for intelligent machines in many interdisciplinary fields. Shape memory polymers are one of the most widely used stimuli-responsive materials, especially in 3D/4D printing, for fabricating shape-morphing systems. They typically go through a hot-programming step to obtain the shape-morphing capability, which possesses limited freedom of reconfigurability. Cold-programming, which directly deforms the structure into a temporary shape without increasing the temperature, is simple and more versatile but has stringent requirements on material properties. Here, we introduce grayscale digital light processing (g-DLP) based 3D printing as a simple and effective platform for fabricating shape-morphing structures with cold-programming capabilities. With the multimaterial-like printing capability of g-DLP, we develop heterogeneous hinge modules that can be cold-programmed by simply stretching at room temperature. Different configurations can be encoded during 3D printing with the variable distribution and direction of the modular-designed hinges. The hinge module allows controllable independent morphing enabled by cold programming. By leveraging the multimaterial-like printing capability, multi-shape morphing structures are presented. The g-DLP printing with cold-programming morphing strategy demonstrates enormous potential in the design and fabrication of shape-morphing structures.
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Affiliation(s)
- Liang Yue
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Xiaohao Sun
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Luxia Yu
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Mingzhe Li
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - S Macrae Montgomery
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Yuyang Song
- Toyota Research Institute of North America, Toyota Motor North America, Ann Arbor, Michigan, 48105, USA
| | - Tsuyoshi Nomura
- Toyota Central R&D Laboratories, Inc., Bunkyo-ku, Tokyo, 112-0004, Japan
| | - Masato Tanaka
- Toyota Research Institute of North America, Toyota Motor North America, Ann Arbor, Michigan, 48105, USA
| | - H Jerry Qi
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
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9
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Madrid-Wolff J, Toombs J, Rizzo R, Bernal PN, Porcincula D, Walton R, Wang B, Kotz-Helmer F, Yang Y, Kaplan D, Zhang YS, Zenobi-Wong M, McLeod RR, Rapp B, Schwartz J, Shusteff M, Talyor H, Levato R, Moser C. A review of materials used in tomographic volumetric additive manufacturing. MRS COMMUNICATIONS 2023; 13:764-785. [PMID: 37901477 PMCID: PMC10600040 DOI: 10.1557/s43579-023-00447-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 08/08/2023] [Indexed: 10/31/2023]
Abstract
Volumetric additive manufacturing is a novel fabrication method allowing rapid, freeform, layer-less 3D printing. Analogous to computer tomography (CT), the method projects dynamic light patterns into a rotating vat of photosensitive resin. These light patterns build up a three-dimensional energy dose within the photosensitive resin, solidifying the volume of the desired object within seconds. Departing from established sequential fabrication methods like stereolithography or digital light printing, volumetric additive manufacturing offers new opportunities for the materials that can be used for printing. These include viscous acrylates and elastomers, epoxies (and orthogonal epoxy-acrylate formulations with spatially controlled stiffness) formulations, tunable stiffness thiol-enes and shape memory foams, polymer derived ceramics, silica-nanocomposite based glass, and gelatin-based hydrogels for cell-laden biofabrication. Here we review these materials, highlight the challenges to adapt them to volumetric additive manufacturing, and discuss the perspectives they present. Graphical abstract Supplementary Information The online version contains supplementary material available at10.1557/s43579-023-00447-x.
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Affiliation(s)
| | - Joseph Toombs
- Department of Mechanical Engineering, University of California, Berkeley, CA USA
| | - Riccardo Rizzo
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA USA
| | - Paulina Nuñez Bernal
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | | | - Rebecca Walton
- Lawrence Livermore National Laboratory, Livermore, CA USA
| | - Bin Wang
- Department of Mechanical Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Frederik Kotz-Helmer
- Institute of Microstructure Technology (IMTEK), University of Freiburg, Georges Köhler Allee 103, 79110 Freiburg, Germany
| | - Yi Yang
- Department of Chemistry, Technical University of Denmark (DTU), 2800 Kongens Lyngby, Denmark
- Center for Energy Resources Engineering (CERE), Technical University of Denmark (DTU), 2800 Kongens Lyngby, Denmark
| | - David Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155 USA
| | - Yu Shrike Zhang
- Division of Engineering Medicine, Department of Medicine, Harvard Medical School, Brigham and Women’s Hospital, Cambridge, MA 02139 USA
| | - Marcy Zenobi-Wong
- Tissue Engineering + Biofabrication Laboratory, Department of Health Sciences & Technology, ETH Zürich, Otto-Stern-Weg 7, 8093 Zurich, Switzerland
| | - Robert R. McLeod
- Materials Science and Engineering Program, University of Colorado, Boulder, USA
- Department of Electrical, Computer and Energy Engineering, University of Colorado, Boulder, USA
| | - Bastian Rapp
- Institute of Microstructure Technology (IMTEK), University of Freiburg, Georges Köhler Allee 103, 79110 Freiburg, Germany
| | | | - Maxim Shusteff
- Lawrence Livermore National Laboratory, Livermore, CA USA
| | - Hayden Talyor
- Department of Mechanical Engineering, University of California, Berkeley, CA USA
| | - Riccardo Levato
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Clinical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Christophe Moser
- Ecole Polytechnique Féderale de Lausanne, 1015 Lausanne, Switzerland
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Rodríguez CF, Andrade-Pérez V, Vargas MC, Mantilla-Orozco A, Osma JF, Reyes LH, Cruz JC. Breaking the clean room barrier: exploring low-cost alternatives for microfluidic devices. Front Bioeng Biotechnol 2023; 11:1176557. [PMID: 37180035 PMCID: PMC10172592 DOI: 10.3389/fbioe.2023.1176557] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/17/2023] [Indexed: 05/15/2023] Open
Abstract
Microfluidics is an interdisciplinary field that encompasses both science and engineering, which aims to design and fabricate devices capable of manipulating extremely low volumes of fluids on a microscale level. The central objective of microfluidics is to provide high precision and accuracy while using minimal reagents and equipment. The benefits of this approach include greater control over experimental conditions, faster analysis, and improved experimental reproducibility. Microfluidic devices, also known as labs-on-a-chip (LOCs), have emerged as potential instruments for optimizing operations and decreasing costs in various of industries, including pharmaceutical, medical, food, and cosmetics. However, the high price of conventional prototypes for LOCs devices, generated in clean room facilities, has increased the demand for inexpensive alternatives. Polymers, paper, and hydrogels are some of the materials that can be utilized to create the inexpensive microfluidic devices covered in this article. In addition, we highlighted different manufacturing techniques, such as soft lithography, laser plotting, and 3D printing, that are suitable for creating LOCs. The selection of materials and fabrication techniques will depend on the specific requirements and applications of each individual LOC. This article aims to provide a comprehensive overview of the numerous alternatives for the development of low-cost LOCs to service industries such as pharmaceuticals, chemicals, food, and biomedicine.
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Affiliation(s)
| | | | - María Camila Vargas
- Department of Biomedical Engineering, Universidad de Los Andes, Bogotá, Colombia
| | | | - Johann F. Osma
- Department of Biomedical Engineering, Universidad de Los Andes, Bogotá, Colombia
| | - Luis H. Reyes
- Department of Chemical and Food Engineering, Universidad de Los Andes, Bogotá, Colombia
- *Correspondence: Luis H. Reyes, ; Juan C. Cruz,
| | - Juan C. Cruz
- Department of Biomedical Engineering, Universidad de Los Andes, Bogotá, Colombia
- *Correspondence: Luis H. Reyes, ; Juan C. Cruz,
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