101
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Muth JT, Vogt DM, Truby RL, Mengüç Y, Kolesky DB, Wood RJ, Lewis JA. Embedded 3D printing of strain sensors within highly stretchable elastomers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:6307-12. [PMID: 24934143 DOI: 10.1002/adma.201400334] [Citation(s) in RCA: 572] [Impact Index Per Article: 57.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 05/09/2014] [Indexed: 05/18/2023]
Abstract
A new method, embedded-3D printing (e-3DP), is reported for fabricating strain sensors within highly conformal and extensible elastomeric matrices. e-3DP allows soft sensors to be created in nearly arbitrary planar and 3D motifs in a highly programmable and seamless manner. Several embodiments are demonstrated and sensor performance is characterized.
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102
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Lessing J, Glavan AC, Walker SB, Keplinger C, Lewis JA, Whitesides GM. Inkjet printing of conductive inks with high lateral resolution on omniphobic "R(F) paper" for paper-based electronics and MEMS. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:4677-82. [PMID: 24889538 DOI: 10.1002/adma.201401053] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/09/2014] [Indexed: 05/13/2023]
Abstract
The use of omniphobic "fluoroalkylated paper" as a substrate for inkjet printing of aqueous inks that are the precursors of electrically conductive patterns is described. By controlling the surface chemistry of the paper, it is possible to print high resolution, conductive patterns that remain conductive after folding and exposure to common solvents.
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103
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Kolesky DB, Truby RL, Gladman AS, Busbee TA, Homan KA, Lewis JA. 3D bioprinting of vascularized, heterogeneous cell-laden tissue constructs. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:3124-30. [PMID: 24550124 DOI: 10.1002/adma.201305506] [Citation(s) in RCA: 1171] [Impact Index Per Article: 117.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 12/21/2013] [Indexed: 05/19/2023]
Abstract
A new bioprinting method is reported for fabricating 3D tissue constructs replete with vasculature, multiple types of cells, and extracellular matrix. These intricate, heterogeneous structures are created by precisely co-printing multiple materials, known as bioinks, in three dimensions. These 3D micro-engineered environments open new -avenues for drug screening and fundamental studies of wound healing, angiogenesis, and stem-cell niches.
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104
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Fu M, Chaudhary K, Lange JG, Kim HS, Juarez JJ, Lewis JA, Braun PV. Anisotropic colloidal templating of 3D ceramic, semiconducting, metallic, and polymeric architectures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:1740-1745. [PMID: 24375844 DOI: 10.1002/adma.201304809] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 10/27/2013] [Indexed: 06/03/2023]
Abstract
3D-porous anisotropic solids are fabricated by using horizontally and vertically aligned assemblies of silica rods with a length of ca. 2 μm and a diameter of 500 nm as templates. Templated materials include examples from metals, semiconductors, ceramics, and polymers, Ni, Si, HfO2, and PMMA, respectively. By varying the infilling conditions, the detailed mesoscale structure and degree of anisotropy can be controlled.
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105
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Chaudhary K, Juárez JJ, Chen Q, Granick S, Lewis JA. Reconfigurable assemblies of Janus rods in AC electric fields. SOFT MATTER 2014; 10:1320-4. [PMID: 24652478 DOI: 10.1039/c3sm52418c] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
We investigate the electric field-induced assembly of Janus colloids composed of silica rods patterned with gold patches in both side- and tip-coated motifs. These shape and chemically anisotropic particles assemble into reconfigurable chains, whose structure depends on patch location, AC electric field strength, and frequency.
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106
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Lewis JA, Petty WJ, Harmon M, Peacock JE, Valente K, Owen J, Pirmohamed M, Lesser GJ. Hemolytic anemia in two patients with glioblastoma multiforme: A possible interaction between vorinostat and dapsone. J Oncol Pharm Pract 2014; 21:220-3. [DOI: 10.1177/1078155214524085] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Patients undergoing treatment for glioblastoma multiforme are routinely placed on prophylactic treatment for Pneumocystis jirovecii pneumonia because of significant therapy-induced lymphopenia. In patients with sulfa allergies, dapsone prophylaxis is often used due to its efficacy, long half-life, cost effectiveness, and general safety at low doses. However, dapsone may uncommonly induce a hemolytic anemia, particularly in patients deficient of glucose-6-phosphate dehydrogenase. This hemolysis is thought to be a result of oxidative stress on red blood cells induced by dapsone metabolites which produce reactive oxygen species that disrupt the red blood cell membrane and promote splenic sequestration. A single case report of dapsone-induced hemolytic anemia in a patient with glioblastoma multiforme has been reported. We present two patients with glioblastoma multiforme who developed severe hemolytic anemia shortly after initiating therapy with vorinostat, a pan-active histone deacetylase inhibitor, while on prophylactic dapsone. There are several potential mechanisms by which histone deacetylase inhibition may alter dapsone metabolism including changes in hepatic acetylation or N-glucuronidation leading to an increase in the bioavailability of dapsone’s hematotoxic metabolites. In addition, vorinostat may lead to increased hemolysis through inhibition of heat shock protein-90, a chaperone protein that maintains the integrity of the red blood cell membrane cytoskeleton. The potential interaction between dapsone and vorinostat may have important clinical implications as more than 10 clinical trials evaluating drug combinations with vorinostat in patients with malignant glioma are either ongoing or planned in North America.
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107
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Sun K, Wei TS, Ahn BY, Seo JY, Dillon SJ, Lewis JA. 3D printing of interdigitated Li-ion microbattery architectures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:4539-4543. [PMID: 23776158 DOI: 10.1002/adma.201301036] [Citation(s) in RCA: 393] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 05/07/2013] [Indexed: 06/02/2023]
Abstract
3D interdigitated microbattery architectures (3D-IMA) are fabricated by printing concentrated lithium oxide-based inks. The microbatteries are composed of interdigitated, high-aspect ratio cathode and anode structures. Our 3D-IMA, which exhibit high areal energy and power densities, may find potential application in autonomously powered microdevices.
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108
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Pihl JA, Lewis JA, Toops TJ, Adelman BJ, Derybowski EM. Development of a Surface Area Dependent Rate Expression for Soot Oxidation in Diesel Particulate Filters. Top Catal 2013. [DOI: 10.1007/s11244-013-0005-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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109
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Pihl JA, Lewis JA, Toops TJ, Parks JE. Lean NOx Trap Chemistry Under Lean-Gasoline Exhaust Conditions: Impact of High NOx Concentrations and High Temperature. Top Catal 2013. [DOI: 10.1007/s11244-013-9934-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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110
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Abstract
Since drug therapy of angina is likely to produce a similar degree of efficacy for most drugs in common use, treatment choice should additionally focus on other factors, notably adverse events, quality of life, and convenience. Improvements in these factors can also lead to better compliance and can aid the doctor by cutting down the number of patient visits required to optimize therapy. The authors have evaluated the patient's overall assessment of symptomatic relief and adverse experiences in a comparative manner by means of the two-period crossover design using the patient's declared treatment preference as the primary measurement. This encapsulates several factors in a single assessment that can be understood by both physician and patient. The authors carried out two such studies of epanolol (Visacor), a novel anti-anginal agent with both beta-1 selective antagonist activity and also beta-1 selective partial agonist activity. In one study (n = 608) the comparator was metoprolol, and in the other (n = 571) it was nifedipine. This article describes and evaluates the methodology of these studies. To assess preference optimally, each patient had to receive both treatments in short but clinically relevant treatment periods, with no washout. Re-entry into the second period, after withdrawal from the first, was permitted. Both studies showed advantages for epanolol, more marked in the case of nifedipine, arising from equivalent efficacy but fewer adverse events.(ABSTRACT TRUNCATED AT 250 WORDS)
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111
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Yan J, Chaudhary K, Chul Bae S, Lewis JA, Granick S. Colloidal ribbons and rings from Janus magnetic rods. Nat Commun 2013; 4:1516. [DOI: 10.1038/ncomms2520] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 01/16/2013] [Indexed: 11/10/2022] Open
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112
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Hansen CJ, Saksena R, Kolesky DB, Vericella JJ, Kranz SJ, Muldowney GP, Christensen KT, Lewis JA. High-throughput printing via microvascular multinozzle arrays. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:96-102. [PMID: 23109104 DOI: 10.1002/adma.201203321] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Indexed: 05/11/2023]
Abstract
Microvascular multinozzle arrays are designed and fabricated for high-throughput printing of functional materials. Ink-flow uniformity within these multigeneration, bifurcating microchannel arrays is characterized by computer modeling and microscopic particle image velocimetry (micro-PIV) measurements. Both single and dual multinozzle printheads are produced to enable rapid printing of multilayered periodic structures over large areas (≈1 m(2)).
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113
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Sun L, Parker ST, Syoji D, Wang X, Lewis JA, Kaplan DL. Direct-write assembly of 3D silk/hydroxyapatite scaffolds for bone co-cultures. Adv Healthc Mater 2012. [PMID: 23184824 DOI: 10.1002/adhm.201200057] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
3D silk/HA microperiodic scaffolds for bone tissue engineering and angiogenesis are fabricated by direct-write assembly. This approach can be used to control filament and spacing size in the scaffold to allow investigation of the effect of scaffold architecture on osteogenesis and vessel-like structure formation from stem cells and endothelial cells.
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114
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Chaudhary K, Chen Q, Juárez JJ, Granick S, Lewis JA. Janus Colloidal Matchsticks. J Am Chem Soc 2012; 134:12901-3. [DOI: 10.1021/ja305067g] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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115
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Walker SB, Lewis JA. Reactive Silver Inks for Patterning High-Conductivity Features at Mild Temperatures. J Am Chem Soc 2012; 134:1419-21. [DOI: 10.1021/ja209267c] [Citation(s) in RCA: 328] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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116
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Ahn BY, Walker SB, Slimmer SC, Russo A, Gupta A, Kranz S, Duoss EB, Malkowski TF, Lewis JA. Planar and three-dimensional printing of conductive inks. J Vis Exp 2011:3189. [PMID: 22214978 PMCID: PMC3346051 DOI: 10.3791/3189] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Printed electronics rely on low-cost, large-area fabrication routes to create flexible or multidimensional electronic, optoelectronic, and biomedical devices. In this paper, we focus on one- (1D), two- (2D), and three-dimensional (3D) printing of conductive metallic inks in the form of flexible, stretchable, and spanning microelectrodes. Direct-write assembly is a 1-to-3D printing technique that enables the fabrication of features ranging from simple lines to complex structures by the deposition of concentrated inks through fine nozzles (~0.1 - 250 μm). This printing method consists of a computer-controlled 3-axis translation stage, an ink reservoir and nozzle, and 10x telescopic lens for visualization. Unlike inkjet printing, a droplet-based process, direct-write assembly involves the extrusion of ink filaments either in- or out-of-plane. The printed filaments typically conform to the nozzle size. Hence, microscale features (< 1 μm) can be patterned and assembled into larger arrays and multidimensional architectures. In this paper, we first synthesize a highly concentrated silver nanoparticle ink for planar and 3D printing via direct-write assembly. Next, a standard protocol for printing microelectrodes in multidimensional motifs is demonstrated. Finally, applications of printed microelectrodes for electrically small antennas, solar cells, and light-emitting diodes are highlighted.
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117
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Lorang DJ, Tanaka D, Spadaccini CM, Rose KA, Cherepy NJ, Lewis JA. Photocurable liquid core-fugitive shell printing of optical waveguides. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2011; 23:5055-8. [PMID: 21989713 DOI: 10.1002/adma.201102411] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Indexed: 05/07/2023]
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118
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Russo A, Ahn BY, Adams JJ, Duoss EB, Bernhard JT, Lewis JA. Pen-on-paper flexible electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2011; 23:3426-3430. [PMID: 21688330 DOI: 10.1002/adma.201101328] [Citation(s) in RCA: 200] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2011] [Indexed: 05/30/2023]
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119
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Ahn BY, Lorang DJ, Lewis JA. Transparent conductive grids via direct writing of silver nanoparticle inks. NANOSCALE 2011; 3:2700-2702. [PMID: 21491039 DOI: 10.1039/c1nr10048c] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Transparent conductive grids are patterned by direct writing of concentrated silver nanoparticle inks. This maskless, etch-free patterning approach is used to produce well-defined, two-dimensional periodic arrays composed of conductive features with center-to-center separation distances of up to 400 µm and an optical transmittance as high as 94.1%.
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120
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Wu W, DeConinck A, Lewis JA. Omnidirectional printing of 3D microvascular networks. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2011; 23:H178-83. [PMID: 21438034 DOI: 10.1002/adma.201004625] [Citation(s) in RCA: 438] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 02/15/2011] [Indexed: 05/18/2023]
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121
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Adams JJ, Duoss EB, Malkowski TF, Motala MJ, Ahn BY, Nuzzo RG, Bernhard JT, Lewis JA. Conformal printing of electrically small antennas on three-dimensional surfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2011; 23:1335-40. [PMID: 21400592 DOI: 10.1002/adma.201003734] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 11/24/2010] [Indexed: 05/04/2023]
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122
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Lim MSC, Hocking JS, Aitken CK, Fairley CK, Jordan L, Lewis JA, Hellard ME. Impact of text and email messaging on the sexual health of young people: a randomised controlled trial. J Epidemiol Community Health 2011; 66:69-74. [DOI: 10.1136/jech.2009.100396] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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123
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Zhang H, DeConinck AJ, Slimmer SC, Doyle PS, Lewis JA, Nuzzo RG. Genotyping by alkaline dehybridization using graphically encoded particles. Chemistry 2011; 17:2867-73. [PMID: 21305624 PMCID: PMC4117403 DOI: 10.1002/chem.201002848] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Indexed: 11/07/2022]
Abstract
This work describes a nonenzymatic, isothermal genotyping method based on the kinetic differences exhibited in the dehybridization of perfectly matched (PM) and single-base mismatched (MM) DNA duplexes in an alkaline solution. Multifunctional encoded hydrogel particles incorporating allele-specific oligonucleotide (ASO) probes in two distinct regions were fabricated by using microfluidic-based stop-flow lithography. Each particle contained two distinct ASO probe sequences differing at a single base position, and thus each particle was capable of simultaneously probing two distinct target alleles. Fluorescently labeled target alleles were annealed to both probe regions of a particle, and the rate of duplex dehybridization was monitored by using fluorescence microscopy. Duplex dehybridization was achieved through an alkaline stimulus using either a pH step function or a temporal pH gradient. When a single target probe sequence was used, the rate of mismatch duplex dehybridization could be discriminated from the rate of perfect match duplex dehybridization. In a more demanding application in which two distinct probe sequences were used, we found that the rate profiles provided a means to discriminate probe dehybridizations from both of the two mismatched duplexes as well as to distinguish at high certainty the dehybridization of the two perfectly matched duplexes. These results demonstrate an ability of alkaline dehybridization to correctly discriminate the rank hierarchy of thermodynamic stability among four sets of perfect match and single-base mismatch duplexes. We further demonstrate that these rate profiles are strongly temperature dependent and illustrate how the sensitivity can be compensated beneficially by the use of an actuating gradient pH field.
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124
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Lewis JA, Ogden AL, Schroeder D, Duchow KJ. The Effect of Polymers on Ceramic Suspension Rheology and Green Component Properties. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-289-117] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractCeramic suspensions were formulated based on an alumina/plasticized-polymer system. The total polymer volume in suspension was held constant, while the relative amount of high-to-low molecular weight polyvinyl butyral (PVB) in suspension was varied. Experiments were performed to elucidate the effects of polymer molecular weight and distribution on the rheological properties of these casting suspensions as well as on the green microstructure of tape-cast components. The polymer properties affected not only the suspension viscosity at a given shear rate as expected, but also the shear thinning behavior of each suspension. Tapes (thickness ≈ 250 μm) were cast from these suspensions and their properties were evaluated. Pore volume, a measure of the packing efficiency, was found to depend strongly on the polymer molecular weight and distribution. In addition, preliminary lamination studies revealed that dimensional stability and anisotropy were also affected by the relative amount of high-to-low molecular weight PVB. A direct correlation was shown to exist between the shear thinning behavior of these suspensions and the resulting dimensional anisotropy exhibited by the tapes cast from each of them. These results demonstrate that polymeric aids influence not only the suspension rheology, but the green component microstructure as well, and, hence, are an integral aspect of ceramic processing.
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125
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Clem PG, Carroll JF, Niehaus MK, Cesarano J, Smay JE, Lewis JA, Lin SY. Materials for Freeform Fabrication of GHz Tunable Dielectric Photonic Crystals. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-758-ll1.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTPhotonic crystals are of interest for GHz transmission applications, including rapid switching, GHz filters, and phased-array technology. 3D fabrication by Robocasting enables moldless printing of high solid loading slurries into structures such as the “woodpile” structures used to fabricate dielectric photonic band gap crystals. In this work, tunable dielectric materials were developed and printed into woodpile structures via solid freefrom fabrication (SFF) toward demonstration of tunable photonic crystals. Barium strontium titanate ceramics possess interesting electrical properties including high permittivity, low loss, and high tunability. This paper discusses the processing route and dielectric characterization of (BaxSr1-XTiO3):MgO ceramic composites, toward fabrication of tunable dielectric photonic band gap crystals.
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