Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 19 of 19 for “"replica molding"”.
-
Flexible and transparent microcavity plasma devices: fabricated by polymer-based replica molding technique
… plasma science and technology. A polymer-based replica molding process enables inexpensive and accurate production of microcavities of the devices. Best known as the sources of visible, ultraviolet (UV) and vacuum ultraviolet (VUV) radiation, microplasma devices fabricated by replica molding …
-
Label-Free Biosensor Based Upon Replica-Molded Vertically Emitting Distributed Feedback Laser
… upon plastic substrate in an inexpensive replica molding process render this sensor of value for applications in life science research, diagnostic testing, and environmental monitoring.
-
Fabrication Techniques and Modeling for Unusual Optical Systems: Near Field Phase Shift Lithography and Plasmonic Sensors
… including phase shift lithography and replica molding, have the potential to solve this long-standing problem if applied to the fabrication of novel plasmonic crystals. I used Finite-Difference Time-Domain (FDTD) calculations to model their optical response and to assess the sensing …
-
Design and prototype of an automated system for commercially viable production using micro contact printing
… Contact Printing, an emerging technique for replication and pattern transfer using soft organic materials, for a nano technology based company in Cambridge, Massachusetts during the summer of 2006. The thesis takes the reader through an extensive literature review of the suite of soft …
-
Label-free biosensor based upon a vertically emitting distributed feedback laser
… a novel fabrication strategy combining a nano-replica molding technique and a horizontal dipping technique has been demonstrated for the fabrication of solid state organic distributed feedback laser (DFB) biosensors. The combined techniques enable the organic DFB laser to be uniformly …
-
Capillary Force in High Aspect-Ratio Micropillar Arrays
… To this end, we have developed a modified replica molding process to fabricate a wide range of hydrogel micropillar arrays, whose elastic modulus in the wet state could be tuned by simply varying the hydrogel monomer composition. By minimizing the sum of capillary meniscus interaction …
-
Coupled phenomena in arrays of microplasma devices and microchannel plasma devices as antennas
… fabricate the arrays, glass micromaching using replica molding and micropowder blasting was proposed and demonstrated. The microplasmas were optically and electrically probed in this work. The investigation showed that each plasma is physically separated and yet, under the proper conditions, is …
-
Development of biodegradable microfluidic networks for tissue engineering
… of biodegradable films using polymer melt replica molding. Next, microchannel networks are sealed and made three-dimensional by stacking and irreversibly bonding the biodegradable films using a newly developed thermal fusion bonding process. The process is modeled and optimized to guide …
-
Optically tunable external cavity ring laser
… is fabricated on a plastic substrate using a replica-molding technique, which allows for inexpensive submicron structure production over large surface areas. Due to the control it provides over laser emission wavelength, as well as its reduced weight and complexity, compactness, and …
-
Polymer based microscale and nanoscale technologies for optical and biomedical application
… to make nanoscale patterns in PLLA films using replica-molding techniques. We produce very high fidelity replication of PLLA using double replication from master polycarbonate to PDMS mold and from PDMS mold to PLLA film by drop casting process. The surface characteristics of the nano-patterned …
-
Chitosan fibrous scaffolds for cartilage tissue engineering
… collagen II, or hyaluronic acid (HA) coating). A replica molding technique was developed to produce chitosan meshes of different fiber-width. A polyglycolic acid (PGA) mesh served as a reference. Constructs were analyzed at two and 21 days after seeding chondrocytes with confocal microscopy, …
-
Centrifuge-aided Micromolding and Sintering of Micron- and Submicron-sized Ceramic Features
… realizing the miniaturization of devices. Micromolding and sintering play critical roles in fabricating micron- and submicron-sized ceramic features using nanoparticles. Developed from soft lithography, replica molding has been proven a good method to prepare micron- and submicron-sized …
-
Evanescent field enhanced fluorescence on a photonic crystal surface
… manufacturing methods and materials that include replica molding on plastic and nano-imprint lithography on quartz substrates result in devices that are practical for single-use disposable applications. In this dissertation I will address design, fabrication and characterization of PCs that employ …
-
InsulPatch: A Slim, Powerless Microfluidic Patch-Pump for Insulin Delivery
… pump fabricated using photolithography and replica molding, and a microneedle array fabricated using 3D printing. The microfluidic pump is used to drive the fluid flow powered by pressurized air or the user’s pulse, and the microneedle array is used to inject the fluid through the skin …
-
ORGANIC ELECTRONIC TRANSISTORS AND MICROFLUIDICS FOR CANCER BIOMARKER SENSING
… a microfluidics fabricated with 3D printing and replica molding allowing to detect amounts of α-synuclein in the range from 2.5 pM to 250 nM. The lower limit of detection (LOD) measures the attainable performance of the integrated device as a tool for prognostics and diagnostics. In the prototype …
-
Solid state electrochemical processes for nanofabrication
… the patterned silver substrate as a template for replica molding of soft materials such as polydimethylsiloxane (PDMS), the writing technique was then utilized for single step integration of micro-channels with nano-channels. Next, this technique was extended to nano-patterning copper by utilizing …
-
Azobenzene-functionalized molecular glasses for holographic applications
… to be transferred to a polymer surface with replica molding techniques. This concept has the potential to be practically applied for holographic optical elements. Holography is a most promising solution for optical data storage, as in contrast to conventional optical storage media, the entire …
-
Holographic Investigation of Azobenzene-Containing Low-Molecular-Weight Compounds
… gratings can be transferred to polymer surfaces. Replica molding can be used to easily copy the surface modulations to e.g. polycarbonate.
-
Photonic crystal enhancement and tuning of quantum dot emission
… directionality of multiple wavelengths. Another replica molded PC is fabricated with embedded QDs in which electrohydrodynamic jet printing is used to control the position of the quantum dots within the device structure. This results in significantly less waste of the QD material and the targeted …