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Díaz‐Marta AS, Yañez S, Lasorsa E, Pacheco P, Tubío CR, Rivas J, Piñeiro Y, Gómez MAG, Amorín M, Guitián F, Coelho A. Integrating Reactors and Catalysts through Three‐Dimensional Printing: Efficiency and Reusability of an Impregnated Palladium on Silica Monolith in Sonogashira and Suzuki Reactions. ChemCatChem 2020. [DOI: 10.1002/cctc.201902143] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Antonio S. Díaz‐Marta
- Instituto de CerámicaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Susana Yañez
- Instituto NANOMAG Departamento de Física Aplicada Laboratorio de Nanomagnetismo y NanotecnologíaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Eliana Lasorsa
- Instituto de CerámicaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Patricia Pacheco
- Instituto de CerámicaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Carmen R. Tubío
- BCMaterials Basque Center for Materials Applications and NanostructuresUPV/EHU Leioa 48940 Spain
| | - José Rivas
- Instituto NANOMAG Departamento de Física Aplicada Laboratorio de Nanomagnetismo y NanotecnologíaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Yolanda Piñeiro
- Instituto NANOMAG Departamento de Física Aplicada Laboratorio de Nanomagnetismo y NanotecnologíaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Manuel A. Gonzalez Gómez
- Instituto NANOMAG Departamento de Física Aplicada Laboratorio de Nanomagnetismo y NanotecnologíaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Manuel Amorín
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Francisco Guitián
- Instituto de CerámicaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Alberto Coelho
- Instituto de CerámicaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
- Departamento de Química Orgánica Facultad de FarmaciaUniversidade de Santiago de Compostela Santiago de Compostela 15782 Spain
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Shen J, Wu R, Shen M, Wei Y, Lei L, Chen L, Yang X, Jin Z, Xu S, Gou Z. Effect of Foreign Ion Substitution and Micropore Tuning in Robocasting Single-Phase Bioceramic Scaffolds on the Physicochemical Property and Vascularization. ACS APPLIED BIO MATERIALS 2020; 3:292-301. [PMID: 35019445 DOI: 10.1021/acsabm.9b00817] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The inorganic powder slurry extrusion printing technique known as robocasting is an interesting method to fabricate complex porous architectures whereby feedstocks containing organic binders and powders are printed and the resulting scaffolds are subjected to sintering. A major limiting factor of this technique is the simultaneous tailoring of vascularization efficacy and osteogenic activity, usually done by adding the secondary phase in the organic slurry before the writing step. Mechanical mixing of biphasic powders is required to avoid compromising the biological performance and physical defects caused by significantly different physicochemical properties. This study addresses this issue by developing a selective ion doping and microstructure tuning for the production of bioceramic scaffolds with a binozzle robocasting process. Different metal ions (Sr2+, Mg2+) were doped into wollastonite (CaSiO3; CSi) powders considering the mechanical stability and bioactive enhancement of the bioceramic scaffolds. Subsequently, the Mg-doped CSi slurries were used as shell-nozzle feedstocks added with 5, 10, and 15 μm diameter polystyrene microbeads that allowed shell-layer micropore production in pore struts during sintering. Finally, the most promising pore-strut microstructures and mechanical evolution of scaffolds were evaluated, and especially the enhanced fibrovascularization potential was confirmed in dorsal muscle embedding model in rabbits. This study may open an avenue to designing multiproperty-tuned macro- and microporous bioceramics for bone regenerative medicine, especially in challenging bone defect conditions.
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Affiliation(s)
- Jianhua Shen
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China
| | - Ronghuan Wu
- Department of Orthopedics, the First Affiliated Hospital, School of Medicine of Zhejiang University, Hangzhou 310003, China
| | - Miaoda Shen
- Department of Orthopedics, the First Affiliated Hospital, School of Medicine of Zhejiang University, Hangzhou 310003, China
| | - Yingming Wei
- Department of Oral Medicine, the Second Affiliated hospital, School of Medicine of Zhejiang University, Hangzhou 310009, China
| | - Lihong Lei
- Department of Oral Medicine, the Second Affiliated hospital, School of Medicine of Zhejiang University, Hangzhou 310009, China
| | - Lili Chen
- Department of Oral Medicine, the Second Affiliated hospital, School of Medicine of Zhejiang University, Hangzhou 310009, China
| | - Xianyan Yang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China
| | - Zhouwen Jin
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China
| | - Sanzhong Xu
- Department of Orthopedics, the First Affiliated Hospital, School of Medicine of Zhejiang University, Hangzhou 310003, China
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China
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53
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Deng S, Wu J, Dickey MD, Zhao Q, Xie T. Rapid Open-Air Digital Light 3D Printing of Thermoplastic Polymer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1903970. [PMID: 31402545 DOI: 10.1002/adma.201903970] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 07/22/2019] [Indexed: 05/17/2023]
Abstract
3D printing has witnessed a new era in which highly complexed customized products become reality. Realizing its ultimate potential requires simultaneous attainment of both printing speed and product versatility. Among various printing techniques, digital light processing (DLP) stands out in its high speed but is limited to intractable light curable thermosets. Thermoplastic polymers, despite their reprocessibility that allows more options for further manipulation, are restricted to intrinsically slow printing methods such as fused deposition modeling. Extending DLP to thermoplastics is highly desirable, but is challenging due to the need to reach rapid liquid-solid separation during the printing process. Here, a successful attempt at DLP printing of thermoplastic polymers is reported, realized by controlling two competing kinetic processes (polymerization and polymer dissolution) simultaneously occurring during printing. With a selected monomer, 4-acryloylmorpholine (ACMO), printing of thermoplastic 3D scaffolds is demonstrated, which can be further converted into various materials/devices utilizing its unique water-soluble characteristic. The ultralow viscosity of ACMO, along with surface oxygen inhibition, allows rapid liquid flow toward high-speed open-air printing. The process simplicity, enabling mechanism, and material versatility broaden the scope of 3D printing in constructing functional 3D devices including reconfigurable antenna, shape-shifting structures, and microfluidics.
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Affiliation(s)
- Shihong Deng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Jingjun Wu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Michael D Dickey
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, 27695-7905, USA
| | - Qian Zhao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Tao Xie
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
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Sanchez Díaz-Marta A, Yáñez S, Tubío CR, Barrio VL, Piñeiro Y, Pedrido R, Rivas J, Amorín M, Guitián F, Coelho A. Multicatalysis Combining 3D-Printed Devices and Magnetic Nanoparticles in One-Pot Reactions: Steps Forward in Compartmentation and Recyclability of Catalysts. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25283-25294. [PMID: 31268288 DOI: 10.1021/acsami.9b08119] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A tricatalytic compartmentalized system that immobilizes metallic species to perform one-pot sequential functionalization is described: a three-dimensional (3D)-printed palladium monolith, ferritic copper(I) magnetic nanoparticles, and a 3D-printed polypropylene capsule-containing copper(II) loaded onto polystyrene-supported 1,5,7-triazabicyclo[4.4.0]dec-5-ene (PS-TBD) allowed the rapid synthesis of diverse substituted 1-([1,1'-biphenyl]-4-yl)-1H-1,2,3-triazoles. The procedure is based on the Chan-Lam azidation/copper alkyne-azide cycloaddition/Suzuki reaction strategy in the solution phase. This catalytic system enabled the efficient assembly of the final compounds in high yields without the need for special additives or intermediate isolation. The monolithic catalyst-containing immobilized palladium species was synthesized by surface chemical modification of a 3D-printed silica monolith using a soluble polyimide resin as a key reagent, thus creating an extremely robust composite. All three immobilized catalysts described here were easily recovered and reused in numerous cycles. This work exemplifies the role of 3D printing in the design and manufacture of devices for compartmented multicatalytic systems to carry out complex one-pot transformations.
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Affiliation(s)
| | | | - Carmen R Tubío
- BCMaterials, Basque Center for Materials, Applications, and Nanostructures , UPV/EHU , Science Park, 48940 Leioa , Spain
| | - V Laura Barrio
- Escuela de Ingeniería , Universidad del País Vasco (UPV/EHU) , Plaza Ingeniero Torres Quevedo , 48013 , Bilbao , Spain
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PVB/PEG-Based Feedstocks for Injection Molding of Alumina Microreactor Components. MATERIALS 2019; 12:ma12081219. [PMID: 31013970 PMCID: PMC6514679 DOI: 10.3390/ma12081219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/24/2019] [Accepted: 03/25/2019] [Indexed: 11/16/2022]
Abstract
The ceramic injection molding (CIM) process is a cost-effective powder-based near net shape manufacturing process for large-scale production of complex-shaped ceramic functional components. This paper presents the rheological analysis of environmentally friendly CIM feedstock formulations based on the binder components polyvinyl butyral (PVB) and polyethylene gycol (PEG). The prepared PVB/PEG-based alumina molding compounds were investigated with respect to their PVB:PEG ratios as well as to their powder filling degrees in the range between 50 and 64 vol.%. Corresponding viscosities and shear stresses were determined for increasing shear rates to show the effects of increased PEG content and solid loadings on them. Two single reactor components were injection molded and subsequently joined in their green state for fabrication of an alumina microreactor. The intended purpose of the alumina microreactors is their potential application as wear-resistant and hydrothermal stable multifunctional devices (µ-mixer, µ-reactor, µ-analyzer) for continuous hydrothermal synthesis (CHTS) of metal oxide nanoparticles in supercritical water (sc-H2O) as the reaction medium.
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Zheng N, Hou J, Zhao H, Wu J, Luo Y, Bai H, Rogers JA, Zhao Q, Xie T. Mechano-Plastic Pyrolysis of Dynamic Covalent Polymer Network toward Hierarchical 3D Ceramics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1807326. [PMID: 30656742 DOI: 10.1002/adma.201807326] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 12/09/2018] [Indexed: 06/09/2023]
Abstract
Shaping ceramics into complex 3D geometries is desirable yet challenging, particularly those with structural hierarchy spanning different length scales. A mechano-plastic pyrolysis process that overcomes this limitation is reported. In addition to taking advantage of the moldability of organic polymers, the process uniquely incorporates mechano-plasticity via dynamic covalent bond exchange for reconfiguring the shape of a preceramic polymer. The combined steps result in simultaneous shape control at both micro- and macro-scales. Further pyrolysis leads to complex ceramic structures that are otherwise difficult to produce. To enable this process, rational design of the polymer network is required to satisfy an unusual combination of mechano-plasticity and pyrolysis. Overall, the process offers an avenue for efficient fabrication of hierarchical 3D ceramic structures suitable for engineering applications.
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Affiliation(s)
- Ning Zheng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Jingjing Hou
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Hangbo Zhao
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, 60208, USA
| | - Jingjun Wu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Yingwu Luo
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Hao Bai
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - John A Rogers
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Biomedical Engineering, Chemistry, Mechanical Engineering, Electrical Engineering, and Computer Science, Neurological Surgery, Simpson Querrey Institute and Feinberg Medical School, Northwestern University, Evanston, IL, 60208, USA
| | - Qian Zhao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Tao Xie
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
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