601
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Wu CS. Modulation, functionality, and cytocompatibility of three-dimensional printing materials made from chitosan-based polysaccharide composites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:27-36. [DOI: 10.1016/j.msec.2016.06.062] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 06/13/2016] [Accepted: 06/20/2016] [Indexed: 10/21/2022]
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602
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Affiliation(s)
- Bethany Gross
- Department of Chemistry, Michigan State University, East
Lansing, Michigan 48824, United States
| | - Sarah Y. Lockwood
- Department of Chemistry, Michigan State University, East
Lansing, Michigan 48824, United States
| | - Dana M. Spence
- Department of Chemistry, Michigan State University, East
Lansing, Michigan 48824, United States
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603
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Newcomb TL, Bruhn AM, Giles B, Garcia HM, Diawara N. Testing a Novel 3D Printed Radiographic Imaging Device for Use in Forensic Odontology. J Forensic Sci 2016; 62:223-228. [PMID: 27859228 DOI: 10.1111/1556-4029.13230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 03/28/2016] [Accepted: 04/02/2016] [Indexed: 10/20/2022]
Abstract
There are specific challenges related to forensic dental radiology and difficulties in aligning X-ray equipment to teeth of interest. Researchers used 3D printing to create a new device, the combined holding and aiming device (CHAD), to address the positioning limitations of current dental X-ray devices. Participants (N = 24) used the CHAD, soft dental wax, and a modified external aiming device (MEAD) to determine device preference, radiographer's efficiency, and technique errors. Each participant exposed six X-rays per device for a total of 432 X-rays scored. A significant difference was found at the 0.05 level between the three devices (p = 0.0015), with the MEAD having the least amount of total errors and soft dental wax taking the least amount of time. Total errors were highest when participants used soft dental wax-both the MEAD and the CHAD performed best overall. Further research in forensic dental radiology and use of holding devices is needed.
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Affiliation(s)
- Tara L Newcomb
- School of Dental Hygiene, College of Health Sciences, Old Dominion University, Norfolk, VA, 23529
| | - Ann M Bruhn
- School of Dental Hygiene, College of Health Sciences, Old Dominion University, Norfolk, VA, 23529
| | - Bridget Giles
- Virginia Modeling, Analysis & Simulation Center, Old Dominion University, Suffolk, VA, 23535
| | - Hector M Garcia
- Virginia Modeling, Analysis & Simulation Center, Old Dominion University, Suffolk, VA, 23535
| | - Norou Diawara
- Mathematics and Statistics, Old Dominion University, Norfolk, VA, 23529
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604
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Salami E, Ganesan PB, Ward TA, Viyapuri R, Romli FI. Design and mechanical analysis of a 3D-printed biodegradable biomimetic micro air vehicle wing. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1757-899x/152/1/012014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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605
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Wu CS, Liao HT. Polyester-based green composites for three-dimensional printing strips: preparation, characterization and antibacterial properties. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1836-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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606
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Tang Y, Zhang Y, Yang J, Nie J. Synthesis and characteristics of photopolymerized benzophenone. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28386] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yunhui Tang
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Yuxuan Zhang
- Changzhou Advanced Materials Research Institute, Beijing University of Chemical Technology; Changzhou 213164 People's Republic of China
| | - Jinliang Yang
- Changzhou Advanced Materials Research Institute, Beijing University of Chemical Technology; Changzhou 213164 People's Republic of China
| | - Jun Nie
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
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607
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Pan GT, Chong S, Tsai HJ, Lu WH, Yang TCK. The Effects of Iron, Silicon, Chromium, and Aluminum Additions on the Physical and Mechanical Properties of Recycled 3D Printing Filaments. ADVANCES IN POLYMER TECHNOLOGY 2016. [DOI: 10.1002/adv.21777] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Guan-Ting Pan
- Department of Chemical Engineering and Biotechnology; National Taipei University of Technology; Taipei City 106 Taiwan
| | - Siewhui Chong
- Department of Chemical and Environmental Engineering; University of Nottingham Malaysia Campus; 43500 Selangor Malaysia
| | - Hsuan-Ju Tsai
- Department of Chemical Engineering and Biotechnology; National Taipei University of Technology; Taipei City 106 Taiwan
| | - Wei-Hua Lu
- Graduate Institute of Materials Engineering; National Pingtung University of Science and Technology; Pingtung 912 Taiwan
| | - Thomas C.-K. Yang
- Department of Chemical Engineering and Biotechnology; National Taipei University of Technology; Taipei City 106 Taiwan
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608
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Frontal Conversion and Uniformity in 3D Printing by Photopolymerisation. MATERIALS 2016; 9:ma9090760. [PMID: 28773881 PMCID: PMC5457111 DOI: 10.3390/ma9090760] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 08/31/2016] [Accepted: 09/02/2016] [Indexed: 11/16/2022]
Abstract
We investigate the impact of the non-uniform spatio-temporal conversion, intrinsic to photopolymerisation, in the context of light-driven 3D printing of polymers. The polymerisation kinetics of a series of model acrylate and thiol-ene systems, both neat and doped with a light-absorbing dye, is investigated experimentally and analysed according to a descriptive coarse-grained model for photopolymerisation. In particular, we focus on the relative kinetics of polymerisation with those of 3D printing, by comparing the evolution of the position of the conversion profile (zf) to the sequential displacement of the object stage (∆z). After quantifying the characteristic sigmoidal monomer-to-polymer conversion of the various systems, with a combination of patterning experiments, FT-IR mapping, and modelling, we compute representative regimes for which zf is smaller, commensurate with, or larger than ∆z. While non-monotonic conversion can be detrimental to 3D printing, for instance in causing differential shrinkage of inhomogeneity in material properties, we identify opportunities for facile fabrication of modulated materials in the z-direction (i.e., along the illuminated axis). Our simple framework and model, based on directly measured parameters, can thus be employed in photopolymerisation-based 3D printing, both in process optimisation and in the precise design of complex, internally stratified materials by coupling the z-stage displacement and frontal polymerisation kinetics.
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609
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Rahman SU, Arany PR. 3D bioprinting: prostheses-restorations…now, tissues and organ systems! Oral Dis 2016; 23:404-408. [PMID: 27318018 DOI: 10.1111/odi.12525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- S U Rahman
- Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, NY, USA
| | - P R Arany
- Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, NY, USA
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610
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UV-Assisted 3D Printing of Glass and Carbon Fiber-Reinforced Dual-Cure Polymer Composites. MATERIALS 2016; 9:ma9070583. [PMID: 28773704 PMCID: PMC5456860 DOI: 10.3390/ma9070583] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 07/10/2016] [Accepted: 07/11/2016] [Indexed: 11/17/2022]
Abstract
Glass (GFR) and carbon fiber-reinforced (CFR) dual-cure polymer composites fabricated by UV-assisted three-dimensional (UV-3D) printing are presented. The resin material combines an acrylic-based photocurable resin with a low temperature (140 °C) thermally-curable resin system based on bisphenol A diglycidyl ether as base component, an aliphatic anhydride (hexahydro-4-methylphthalic anhydride) as hardener and (2,4,6,-tris(dimethylaminomethyl)phenol) as catalyst. A thorough rheological characterization of these formulations allowed us to define their 3D printability window. UV-3D printed macrostructures were successfully demonstrated, giving a clear indication of their potential use in real-life structural applications. Differential scanning calorimetry and dynamic mechanical analysis highlighted the good thermal stability and mechanical properties of the printed parts. In addition, uniaxial tensile tests were used to assess the fiber reinforcing effect on the UV-3D printed objects. Finally, an initial study was conducted on the use of a sizing treatment on carbon fibers to improve the fiber/matrix interfacial adhesion, giving preliminary indications on the potential of this approach to improve the mechanical properties of the 3D printed CFR components.
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611
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de Leon AC, Chen Q, Palaganas NB, Palaganas JO, Manapat J, Advincula RC. High performance polymer nanocomposites for additive manufacturing applications. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.04.010] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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612
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Bhattacharjee N, Urrios A, Kang S, Folch A. The upcoming 3D-printing revolution in microfluidics. LAB ON A CHIP 2016; 16:1720-42. [PMID: 27101171 PMCID: PMC4862901 DOI: 10.1039/c6lc00163g] [Citation(s) in RCA: 551] [Impact Index Per Article: 68.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In the last two decades, the vast majority of microfluidic systems have been built in poly(dimethylsiloxane) (PDMS) by soft lithography, a technique based on PDMS micromolding. A long list of key PDMS properties have contributed to the success of soft lithography: PDMS is biocompatible, elastomeric, transparent, gas-permeable, water-impermeable, fairly inexpensive, copyright-free, and rapidly prototyped with high precision using simple procedures. However, the fabrication process typically involves substantial human labor, which tends to make PDMS devices difficult to disseminate outside of research labs, and the layered molding limits the 3D complexity of the devices that can be produced. 3D-printing has recently attracted attention as a way to fabricate microfluidic systems due to its automated, assembly-free 3D fabrication, rapidly decreasing costs, and fast-improving resolution and throughput. Resins with properties approaching those of PDMS are being developed. Here we review past and recent efforts in 3D-printing of microfluidic systems. We compare the salient features of PDMS molding with those of 3D-printing and we give an overview of the critical barriers that have prevented the adoption of 3D-printing by microfluidic developers, namely resolution, throughput, and resin biocompatibility. We also evaluate the various forces that are persuading researchers to abandon PDMS molding in favor of 3D-printing in growing numbers.
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613
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de Azevedo Gonçalves Mota RC, da Silva EO, de Lima FF, de Menezes LR, Thiele ACS. 3D Printed Scaffolds as a New Perspective for Bone Tissue Regeneration: Literature Review. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/msa.2016.78039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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