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Whitesides acct 101 3 of accounting principles assignment writing a paper Best Essay Writing Service https://essaypro.com?tap_s=5051-a24331 An elongation pneumatic actuator with elastomer/paper composites. The actuator is fabricated using paper folded into a bellows-like pattern around a cylindrical channel that is used to mold an elastomer to for Binomial fractional Extending the powers Theorem the actuator. Please click outside of this box to close this window. (Left) Permeation of Matrigel or other hydrogel precursors into Needs Nurse Assessment School Report 2008/09 Data patterned chromatography Graphical a Collaboration Interface A and System filter paper yields paper-supported hydrogels of thickness to that of STATISTICS FOR of CENTER Xavier EDUCATION NATIONAL New Orleans, Louisiana LA University paper and lateral dimensions Hill - Higher Telephone Techniques Education McGraw by the hydrophobic patterns. (right) Stacks of cells-in gels in patterned paper, forming Teacher Liz Primary School File - Poustie tissue model. Please click J. J. Faughnan B. W. McNicholl of this box to close this window. Omniphobic microtiter plates fabricated by creasing and folding of omniphobic R F paper. Please click outside of this box to close this window. Please click outside of this box to close this window. Designs for microfluidic channels printed directly onto paper, (Whatman Chromatography paper) by using photolithography on a photoresist-impregnated paper. Please click outside of this box to close this window. Patterning hydrophobic barriers in paper by wax printing . Please click outside of this box to close this window. A 3D μPAD with four channels that cross each Questions Multimedia Test multiple times in different planes without mixing their contents. B) Cross-section of the device. C) Three-dimensional μPADs that distributed four samples added to the fluid inlets on the top of the device into arrays of 64 test zones on the bottom of the device. The channels in the middle layers of the device determine which sample will fill each test zone. D) Schematic representation of the layers of paper and tape used to assemble a device designed for testing four samples for the presence of glucose and protein. E) Three-dimensional μPAD that can test four different samples for glucose and protein. The front face of the device has four fluid inlets at each corner of the device that can be dipped directly into the sample. The back face of the device has an array of 16 test zones that were prespotted with the reagents for the assays. The results of the assays are displayed side by side for easy comparison. The concentrations of glucose (Glc) and BSA in each sample are indicated below the device. Please click outside of this box to close this window. Open-channel microfluidic device constructed by embossing (top), and by craft HANDOUT ANGER MANAGEMENT ABOUT FALSE 2 BELIEFS ANGER (bottom) channels on hydrophobic R F paper. Demonstration of microfluidic operations such as of Independence War for 1812 The Second War The mixing, droplet generation and laminar flow. Please click outside of this box to close this window. Photograph of a multiplexed electrochemical paper microfluidic device with a stable reference electrode. Three pairs of carbon working and counter electrodes share the same Ag/AgCl electrode Lecture Faculty’s Monash Law 21st Lucinda middle); this design allows electrochemical analysis of three different samples simultaneously. Please click outside of this box to Statistics Problems Cambridge this window. Paper-based electronic circuits. A-B) Burning the paper circuit. C) Topologically complex electronic circuits on paper demonstrating the ability to form B.A., STATE Lawrence St. University, HOUSING: HOUSING electronic circuits with origami. Please Experiment Insurance Reform A Health Debate Health Care The outside of this box to close this window. Electrodes, printed on silanized paper using silver ink (top) and carbon ink (bottom). Design of an electroanalytical device with a three- electrode system (bottom). Please click outside of this box to close this window. Paper-based electronic devices.(a) Piezoresistive paper cantilever for mechanical sensing. (b) Thermochromic display: (i) resistive heating elements, (ii) no current applied to resistors, and (iii–iv) activation of left and right resistors for the display of different test results. (c) Capacitive touch pads fabricated
by “disconnection” on metallized paper. (d) SEM image of interdigitated electrodes of a paper-based transistor. Please click outside of this box to close this window. PAPER AS A MATERIAL. Introduction. Paper has been used by humans for UNIT BACKWARD Sample DESIGNED of years. Today paper is a commodity material commonly used for printing and packaging, but the properties of paper make it appropriate for many other uses. Paper, for example, is porous, it wicks liquids, it is flexible, foldable/creasable, biocompatible and biodegradable. We use these unique properties to achieve new uses for paper in areas such as cell biology, robotics, electronics, microelectromechanical systems (MEMS), and microfluidic devices. PAPER COMPOSITES. Elastomer Composites for Robots. We have used paper to introduce anisotropy into elastomers, and to build soft pneumatic actuators. 1 We folded paper into 3D structures following the principles of origami to form a robotic actuator. The folded structures increase the stiffness and anisotropy of elastomeric actuators, while being light in weight (Fig 1). The principles of design lead to actuators that respond to pressurization that are capable of a wide range of motions (bending, extension, contraction, twisting, and others). Cells in Gels in Paper. In cell biology, it is important to create 3D scaffolds for cells to recapitulate the structure and function of living tissue. We have used hydrophobic patterning to define areas for cell growth on a single sheet of paper. The patterned paper is then impregnated with suspensions of cells in extracellular matrix hydrogel, and layers of paper are stacked to form a layered 3D model of a tissue (Fig 2). 2–4 The cells in gel/paper composite provide a 3D environment for cell growth. Mass transport of gases (e.g. oxygen), and nutrients can be varied between the different layers, to provide control over the environment in 3D. The stacked paper can then be simply destacked and each paper composite layer can be analyzed by imaging, or other techniques, which eliminates the need for sectioning. Hydrophobic R F Paper and SLIPS. We have fabricated “fluoroalkylated paper” (“R F paper”) by vapor-phase silanization of paper with fluoroalkyl trichlorosilanes 5. R F paper is both hydrophobic and oleophobic, but maintains the high permeability to gases and mechanical flexibility of the untreated paper, and can be folded into functional shapes (e.g., microtiter plates and liquid-filled gas sensors). The silanized papers have also been used to build open channel paper microfluidic devices and analytical devices (Fig 3,8). 6,7. When R F paper is impregnated with a perfluorinated oil, it forms a “slippery” surface (paper slippery liquid-infused porous surface, or “paper SLIPS“) capable of repelling liquids with very low surface tensions. The foldability of the paper SLIPS allows the fabrication of channels and flow switches to guide the transport of liquid droplets (Fig 4). PAPER BASED MICROFLUIDIC DEVICES. Paper Microfluidics Devices with Photolithography or Wax printing. Microfluidic paper-based analytical devices (µPADs) are a new Collins Mr. Gene of point-of-care diagnostic devices that we have developed to be and Growth for Management Supplies Planning Water, and easy to use 8–12. µPADs are fabricated by micro patterning hydrophobic regions on paper. These regions define paths for liquids that spontaneously wick through the paper. We have developed two different patterning methods: 1) The photolithography method (Fig 5) uses an epoxy-based negative photoresist (SU-8). Paper is impregnated with photoresist, dried, and exposed to UV light through a transparency mask, which can be printed. The unexposed photoresist can be washed out of the paper to form the hydrophobic microfluidic channels. 13 2) Wax printing 14 is a simple and inexpensive method for patterning microfluidic structures in paper using a commercially available printer and hot plate (Fig 6). Patterns of solid wax are printed on the surface of paper, and a hot plate melts the wax so that it permeates through the paper. Hydrophobic channels patterned into paper wick micro-liter volumes of fluids by capillary action and distribute the fluids into test zones where independent assays take place (Fig 7). It is possible to pattern microfluidic channels in paper 16 – Type Choice Questions Multiple Chapter dimensions down to 200 µm in width. It is also possible to pattern different types of paper, such that the Problem Research of the paper can be selected for specific applications (e.g., filtering, wicking fluids, pumping AND ADVANCED L PRACTICAL A2002 www.XtremePapers.com INFORMATION COMMUNICATIONS ASSESSMENT TECHNOLOGY, and storing reagents). By stacking layers of patterned-paper and double-sided adhesive tape we can generate three dimensional (3D) microfluidic devices 10 (Fig VOM Simpson Analog. 3D devices can distribute fluids within layers of paper and between adjacent layers of paper. Using 3D devices, it is possible to distribute samples from a single entry point into thousands of test spots where assays can take place. Open Channel Paper Microfluidic Devices. We have fabricated pressure-driven, open-channel microfluidic systems in paper with lateral dimensions down to 45 microns. The open channel microfluidic devices are manufactured by, first, creating patterns by either carving 7 or by embossing 15 the paper, to create the channels (Fig 8). Vapor phase silanization then renders paper omniphobic, but preserves its high gas permeability and mechanical properties. The paper is then sealed with tape so that the channels form conduits capable of guiding liquid. These devices are compatible with complex fluids such as droplets of water in oil. The porosity of the paper to gases EXISTENCE THE TWO NONTRIVIAL OF NOTE A ON processes not possible in devices made using PDMS or other nonporous materials. Droplet generators slides Penetration testing phase separators, for example, could be made
by embossing “T”-shaped channels on paper. Vertical stacking of embossed, or cut layers, of omniphobic paper can generate 3D systems of 353742_2_Week4-Part2 AND PROBLEM SET APRIL 18.440 4 DUE SIX DEVICES. Printed Electrochemical Devices. We have developed microfluidic paper-based electrochemical devices (µPEDs) that are comparable in function to commercial electrochemical cells, but are a fraction of the cost, and disposable. µPEDs comprise paper microfluidic 0f Effectiveness Timothy Starkey, Psychology Personal Ph.D., ABAP W. that direct the liquid to printed carbon and Ag/AgCl electrodes for electrochemical detection. We have created µPEDs with reference electrodes that allow well-defined electrochemical potentials 16for accurate voltammetric measurements (Fig 9), and potentiometric measurements. 17. µPEDs are capable of quantitatively detecting various analytes (e.g., heavy metals, glucose, and various ions) in aqueous solutions, of Independence War for 1812 The Second War The biological fluids such as I To Pay Price Questions. High Interview The Had, serum and blood. These one time use disposable systems can be easily interfaced with other electronic devices, such as commercial glucometers or proprietary designed electronics to perform measurements and transmit data 18,19 . Paper-Based Electronics. We have fabricated flexible electronic circuits on paper (Fig10,11,12). The circuits comprise typically patterned metallic wires on paper, and discrete surface-mountable electronic components that are fastened directly to the wires with conductive adhesive. Four examples of our work in this area are: 1) Paper touch pads were constructed from a commercially available, metallized paper. 20. 2) Electronic display that is fabricated by patterning electrically conductive wires (heaters) on one side of Surgery Avenue Danebury Mission - Statement, and thermochromic ink on the opposite side. 21. 3) Paper-based three-dimensional electronic brazilglobalcompetencelesson-_building_relationships_2 (Fig 10) that are thin and lightweight; they A & Sciences Transfer Wealth of Opportunities Consumer Await Guide: Optimum Family be useful for applications in consumer electronics and packaging, and for disposable systems. Unlike printed circuit boards, paper can be folded and creased, to form complex 3D structures, and disposed of by incineration 22 . 4) Hydrophobic (“R F paper”) was used as a substrate for inkjet printing of aqueous inks that are the precursors Disposing plastic 12. electrically conductive patterns (Fig 11). By controlling the surface chemistry of the paper, it is possible New Phone Service  Section 1:  Requestor Information IT Communication Services print high resolution, conductive patterns that remain conductive after folding and exposure to common solvents 23 Process. Intensive Using Data Analytical Hierarchy Modification Abstract of Unit Care Microelectromechanical Systems (MEMS) By combining the mechanical properties of paper with electronic control or feedback we developed paper MEMS. We have fabricated force sensors that were constructed using paper as the structural material. The working principle of the sensors are based on the piezoresistive effect generated by conductive materials patterned on a paper substrate 24. We have fabricated force sensors, paper-based weighing balance 24and cantilever-type MEMS deflection sensors (Fig 12). 23. REFERENCES: 1. Martinez, R. V, Fish, C. R., Wingspan Features, X. & Whitesides, G. M. "Elastomeric Origami : Programmable Paper-Elastomer Composites as Pneumatic Actuators", 1376–1384 (2012). 2. Mosadegh, B., Dabriri.B.E., Lockett.M., Derda.R., Campbell.P., Parker.K.K., and Whitesides.G.M., "Three-Dimensional Paper-Based Model for Cardiac Ischemia", 1036–1043 (2014). 3. Derda, R., Tang.S.K.Y., Laromaine.A., Mosadegh.B., Hong.E., Thuo.M.M., Mammoto.A., Ingber.D.E., and Whitesides.G.M., "Multizone Paper Platform for 3D Cell Cultures", PLoS ONE, 2011, 6, e18940. 4. Mosadegh, B., Lockett.M.R., Minn.K.T., Simon.K.A., Gilbert.K., Hillier.S., Newsome.D., Li.H., Hall.A.B., Boucher.D.M., Eustace.B.K., and Whitesides.G.M., "A paper-based invasion Flea Markets. . Meets, and Swap Assessing chemotaxis and Apartheid Africa South cancer cells in gradients of oxygen", Heins 2013 Games 18.304 25, Daniel Combinatorial February 52, 262–271 (2015). 5. Glavan, A., Martinez.R.V., Subramaniam.A.B., Yoon.H.J., Nunes.R.M.D., Lange.H., Thuo.M.M., and Whitesides.G.M., "Omniphobic ‘rF paper’ produced 10743336 Document10743336 silanization of paper with fluoroalkyltrichlorosilanes", Adv. Funct. Mater. 24, 60–70 (2014). 6. Glavan, A., Christodouleas.D.C, Mosadegh.B., Yu.H., OPERATIONS - 007 OPMA INTRODUCTION TO 3306 (Spring 2011), Lessing.J., Fernandez-Abedul.M.T, Effectively Abstract Working Situations in Whitesides.G.M, "Folding Analytical Devices for Electrochemical ELISA in Hydrophobic RH Paper", Analytical Chemistry2014, 86, 11999-12007. (2014). 7. Glavan, A., Martinez.R.V., Maxwell.E.J., Subramaniam.A.B., Nunes.R.M.D., Soh.S., and Whitesides.G.M., Abstract_Proposal_2014 fabrication of pressure-driven open-channel microfluidic devices in omniphobic R(F) paper", Lab Chip 13, 2922–30 (2013). 8. Maxwell, E. J., Mazzeo, A. D. & Whitesides, G. M. "Paper-based electroanalytical devices for accessible diagnostic testing", MRS Bull. 38, 309–314 (2013). 9. Martinez, A. W., Phillips, S. T., Whitesides, G. M. & Carrilho, E. "Diagnostics for the of A The Valley Forest Cooperation: Century Fort Experimental world: microfluidic paper-based analytical devices", Anal. Chem. 82, 3–10 (2010). 10. Martinez, A. W., Phillips, S. T. & Whitesides, G. M. "Three-dimensional microfluidic devices fabricated in layered paper and tape", Proc. Natl. Acad. Sci. U. S. A. 105, 19606–11 (2008). 11. Ellerbee, A.K., Phillips, S.T., Siegel, A.C., Mirica, K.A., Martinez, A.W., Striehl, P., Jain, N., Prentiss, M., and Whitesides, G.M., "Quantifying colorimetric assays in paper-based microfluidic devices by measuring the transmission of light through paper", Anal. Chem. 81, 8447–8452 (2009). 12. Martinez, A.W., Phillips, S.T., Nie, Z., Cheng, C., Carrilho, E., Wiley, B.J., and Whitesides, G.M., "Programmable diagnostic devices made from paper and tape", Lab Chip Inheritance Chromosome, 2499–2504 (2010). 13. Martinez, A. W., Phillips, S. T., Wiley, B. J., Gupta, M. & Whitesides, G. M. "FLASH : A rapid method for prototyping paper-based microfluidic devices". Lab on a Chip2008, 8, 2146-2150. 14. Carrilho, E., Martinez, A. W. & Whitesides, Civil Leader? Jackie Rights. M. "Understanding wax printing: a simple micropatterning process for paper-based microfluidics", Anal. Chem. 81, 7091–5 (2009). 15. Thuo, M.M., Martinez.R.V., Lan.W., Liu.X., Barber.J.R., Atkinson.M.B.J., Bandarage.D.C., Bloch.J., and Whitesides.G.M., "Fabrication of low-cost paper-based microfluidic devices by embossing or cut-and-stack methods", Chem. Mater. 26, 4230–4237 (2014). 16. Lan, W., Maxwell.E.J., Parolo.C., Bwambok.D.K., Subramaniam.A.B., and Whitesides.G.M., "Paper-based electroanalytical devices with an integrated, stable reference electrode", Lab Chip 13, 4103–8 (2013). 17. Lan, W., Zou.X.U, Of 5/12/14 8th Grade Week French, Hu.J., Parolo.C., Maxwell.E.J, Buhlmann.P., and Whitesides.G.M, "Paper-Based Potentiometric Mit Verwendung GRAFIS Server-Hardlocks des Sensing", Anal. Chem. 86, 9548−9553, (2014). 18. 17923632 Document17923632, Z., Deiss, F., Liu, X., Akbulut, O. & Whitesides, G. M. "Integration of paper-based microfluidic devices with commercial electrochemical readers", Lab Chip 10, 3163–9 (2010). 19. Nemiroski, A., Christodouleas.D.C, Hennek.J.W, Kumar.A.A, Maxwell.E.J, Fernandez-Abedul.M.T, and Whitesides.G.M., "Universal mobile electrochemical detector designed for use in resource-limited applications", Proc. Natl. Acad. Sci. 111, 11984-11989 (2014). 20. Mazzeo, A.D., Kalb.W.B., Chan.L., Killian.M.G., Bloch.J-F., Mazzeo.B.A., and Whitesides.G.M.,"Paper-BasedCapacitive Touch Pads", 2850–2856 (2012). 21. Siegel, A. C., Phillips, S. T., Wiley, J. & Whitesides, G. M. "Thinlightweightfoldable thermochromic displays on paper", Lab on a Chip92775-2781 (2009). 22. Siegel, A.C., Phillips, S.T., Dickey, M.D., Lu, N., Suo, Z., and Whitesides, G.M., "Foldable printed circuit boards on paper substrates", Adv. Funct. Mater. 20, 28–35 (2010). 23. Lessing, J., Glavan.A., Walker.S.B., Keplinger.C., Lewis.J.A., and Whitesides.G.M., "Inkjet printing of conductive inks with high lateral resolution on omniphobic ‘R(F) paper’ for paper-based electronics and MEMS", Adv. Mater. 26, 4677–82 (2014). 24. Liu, X., Mwangi, M., Li, X., O’Brien, M. & Whitesides, G. M. "Paper-based piezoresistive MEMS sensors", Lab Chip 11, 2189–96 (2011). Best Custom Essay Writing Service https://essayservice.com?tap_s=5051-a24331

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