Titanium Nitride Nanotube Electrode,
2019
Wayne State University
Titanium Nitride Nanotube Electrode, Gui Chen, Marcella Gatti
Research Opportunities for Engineering Undergraduates (ROEU) Program 2018-19
This project presents a corrosion-resistant and high capacity implantable TiN nanotube electrode to work as a neural probe. Smaller electrode size allows for reduced tissue damage while the nanopore morphology of the TiN gives a larger surface area and stability to the electrode. The electrode offers improved biocompatibility, reduced tissue damage, reduced cost, and increased usability over time.
Nitrogen-Vacancy Centers In Diamond For Nanoscale Magnetic Resonance Imaging Applications,
2019
Prince Mohammad Bin Fahd University, Al Khobar, Saudi Arabia
Nitrogen-Vacancy Centers In Diamond For Nanoscale Magnetic Resonance Imaging Applications, Alberto Boretti, Lorenzo Rosa, Jonathan Blackledge, Stefania Castelletto
Articles
The nitrogen-vacancy (NV) center is a point defect in diamond with unique properties for use in ultra-sensitive, high-resolution magnetometry. One of the most interesting and challenging applications is nanoscale magnetic resonance imaging (nano-MRI). While many review papers have covered other NV centers in diamond applications, there is no survey targeting the specific development of nano-MRI devices based on NV centers in diamond. Several different nano-MRI methods based on NV centers have been proposed with the goal of improving the spatial and temporal resolution, but without any coordinated effort. After summarizing the main NV magnetic imaging methods, this review presents a …
Mechanical Behavior Of Cement Paste At Nanoscale - Reactive Molecular Dynamics Modeling And Experimental Corroborations,
2019
North Carolina Agricultural and Technical State University
Mechanical Behavior Of Cement Paste At Nanoscale - Reactive Molecular Dynamics Modeling And Experimental Corroborations, Ingrid M. Padilla Espinosa
Dissertations
Concrete is the most used material for construction, and it is the most produced man-made product in the world. Concrete makes the contemporary architecture of the world conceivable and brings significant development to communities. Nevertheless, there are many downsides to the use of concrete such as the large amount of energy and water used in its production, large carbon footprint, shrinkage and expansion that can cause cracking and other failure mechanisms, and the required use of large amounts of material to ensure stability of concrete structures. These drawbacks create the need for engineering and tailoring the properties of concrete. An …
Wearable Devices For Single Cell Sensing And Transfection,
2019
Beihang University, Beijing
Wearable Devices For Single Cell Sensing And Transfection, Lingqian Chang, Yu-Chieh Wang, Faheem Ershad, Ruiguo Yang, Cunjiang Yu, Yubo Fan
Department of Mechanical and Materials Engineering: Faculty Publications
Transdermal drug delivery systems have been successful for decades. Now these devices can be further scaled down, and their applications have been extended to wide selections of cargo, ranging from natural molecules (e.g., insulin and glucose) to bioengineered molecules (e.g., nanoparticles and vaccines). Some emerging nanopatches show promise for precise single-cell gene transfection in vivo and have advantages over conventional tools in terms of delivery efficiency, safety, and controllability of delivered dose. In this review, we discuss recent technical advances in wearable micro/nano devices with unique capabilities or potential for single-cell biosensing and transfection in the skin or other organs, …
Segregation Of Mo Atoms Into Stacking Faults In Crfeconimo Alloy,
2019
University of Nebraska-Lincoln
Segregation Of Mo Atoms Into Stacking Faults In Crfeconimo Alloy, Kaisheng Ming, Xiaofang Bi, Jian Wang
Department of Mechanical and Materials Engineering: Faculty Publications
Solute segregation at dislocations can impede the motion of dislocations, strengthening materials. Here, we study the formation and role of solute segregation at dislocations in CrFeCoNiMo high-entropy alloys (HEAs) by high-angle annular dark-field scanning transmission electron microscopy imaging and mechanical testing both deformed and annealed samples. Mo atoms exhibit pronounced segregation into the planar-extended core of dislocations, i.e. stacking faults, causing the increase in the yield strength while the loss of the ductility. This work suggests that mechanical properties of HEAs can be tailored by alloying additional elements that are in favor of segregation into dislocations.
Optimization Of Protein-Protein Interaction Measurements For Drug Discovery Using Afm Force Spectroscopy,
2019
Michigan State University
Optimization Of Protein-Protein Interaction Measurements For Drug Discovery Using Afm Force Spectroscopy, Yongliang Yang, Bixi Zeng, Zhiyong Sun, Amir Monemianesfahani, Jing Hou, Nian-Dong Jiao, Lianqing Liu, Liangliang Chen, Marc D. Basson, Lixin Dong, Ruiguo Yang, Ning Xi
Department of Mechanical and Materials Engineering: Faculty Publications
Increasingly targeted in drug discovery, protein-protein interactions challenge current high throughput screening technologies in the pharmaceutical industry. Developing an effective and efficient method for screening small molecules or compounds is critical to accelerate the discovery of ligands for enzymes, receptors and other pharmaceutical targets. Here, we report developments of methods to increase the signal-to-noise ratio (SNR) for screening protein-protein interactions using atomic force microscopy (AFM) force spectroscopy. We have demonstrated the effectiveness of these developments on detecting the binding process between focal adhesion kinases (FAK) with protein kinase B (Akt1), which is a target for potential cancer drugs. These developments …
Local Control Robotic Surgical Devices And Related Methods,
2019
Ravenna, NE
Local Control Robotic Surgical Devices And Related Methods, Eric Markvicka, Tom Frederick, Jack Mondry, Joe Bartels, Shane Michael Farritor
Department of Mechanical and Materials Engineering: Faculty Publications
The various robotic medical devices include robotic devices that are disposed within a body cavity and positioned using a support component disposed through an orifice or opening in the body cavity. Additional embodiments relate to devices having arms coupled to a device body wherein the device has a minimal profile such that the device can be easily inserted through smaller incisions in comparison to other devices without such a small profile. Further embodiments relate to methods of operating the above devices.
Medical Inflation, Attachment And Delivery Devices And Related Methods,
2019
Boulder, CO
Medical Inflation, Attachment And Delivery Devices And Related Methods, Mark Rentschler, Shane Michael Farritor
Department of Mechanical and Materials Engineering: Faculty Publications
The various embodiments disclosed herein relate to procedural space maintenance devices, medical device positioning devices, and devices that provide both procedural space maintenance and device positioning. Further embodiments relate to medical device insertion and/or retraction devices.
Electron Transport In One And Two Dimensional Materials,
2019
University at Albany, State University of New York
Electron Transport In One And Two Dimensional Materials, Samuel William Lagasse
Legacy Theses & Dissertations (2009 - 2024)
This dissertation presents theoretical and experimental studies in carbon nanotubes (CNTs), graphene, and van der Waals heterostructures. The first half of the dissertation focuses on cutting edge tight-binding-based quantum transport models which are used to study proton irradiation-induced single-event effects in carbon nanotubes [1], total ionizing dose effects in graphene [2], quantum hall effect in graded graphene p-n junctions [3], and ballistic electron focusing in graphene p-n junctions [4]. In each study, tight-binding models are developed, with heavy emphasis on tying to experimental data. Once benchmarked against experiment, properties of each system which are difficult to access in the laboratory, …
Secondary Electron Interactions In Exposures Of Euv Photoresists,
2019
University at Albany, State University of New York
Secondary Electron Interactions In Exposures Of Euv Photoresists, Steven Grzeskowiak
Legacy Theses & Dissertations (2009 - 2024)
The microelectronic industry’s movement toward smaller feature sizes has necessitated a shift to extreme ultraviolet (EUV) lithography to enable cost-effective patterning of sub 20-nm features. However, this shift from 193-nm lithography (6.4 eV) to EUV (13.5 nm, 92 eV) poses significant obstacles, such that photolithography is now operating in an energy range above the electron binding energies of common atomic species in photoresists. This significant energy increase means the chemical reactions happening within operate in the realm of radiation chemistry instead of photochemistry since the observed reactions are due almost entirely to the action of photoelectrons as they dissipate their …
Investigation Of Optical Second Harmonic Generation From Si (100) With Process Tailored Surface & Embedded Ag Nanostructures For Advanced Si Nonlinear Nanophotonics,
2019
University at Albany, State University of New York
Investigation Of Optical Second Harmonic Generation From Si (100) With Process Tailored Surface & Embedded Ag Nanostructures For Advanced Si Nonlinear Nanophotonics, Gourav Bhowmik
Legacy Theses & Dissertations (2009 - 2024)
The challenge of current microelectronic architecture in transmission bandwidth and power consumption can be potentially solved by using silicon photonics technologies that are compatible with modern CMOS fabrication. One of the critical active photonic devices for Si photonics is a Si based optical modulator. Most of the reported silicon modulators rely on the free carrier plasma dispersion effect. In those cases, a weak change of the refractive index obtained by carrier accumulation, injection or depletion is utilized in a Mach-Zehnder interferometer or a microring resonator to achieve intensity modulation, rendering them difficult for chip-level implementation due to a large footprint …
Development And Demonstration Of A Processing And Assembly Pathway For A 3d-Synchronous Field Programmable Gate Array,
2019
University at Albany, State University of New York
Development And Demonstration Of A Processing And Assembly Pathway For A 3d-Synchronous Field Programmable Gate Array, Robert Carroll
Legacy Theses & Dissertations (2009 - 2024)
Field Programmable Gate Arrays (FPGA) are integrated circuits which can implement virtually any digital function and can be configured by a designer after manufacturing. This is beneficial when dedicated application specific runs are not time or cost effective; however, this flexibility comes at the cost of a substantially higher interconnect overhead. Three-dimensional (3D) integration can offer significant improvements in the FPGA architecture by stacking multiple device layers and interconnecting them in the third or vertical dimension, through the substrate, where path lengths are greatly reduced. This will allow for a higher density of devices and improvements in power consumption, signal …
Cvd Molybdenum Disulfide : Material And Device Engineering,
2019
University at Albany, State University of New York
Cvd Molybdenum Disulfide : Material And Device Engineering, Eui Sang Song
Legacy Theses & Dissertations (2009 - 2024)
Molybdenum disulfide (MoS2) is a semiconducting 2D layered material that has attracted a lot of attention due to its material properties for electronics and optoelectronics device applications. These include a layer-dependent band gap, an indirect to direct energy transition at monolayer state, and strong light-matter interaction. A large majority of 2D materials and devices have been studied through micromechanical exfoliation for extraction and electron beam lithography for device fabrication. These methodologies while able to generate high quality materials and precisely fabricated devices, are not suitable for large scale production. Efforts have been made to make MoS2 and other 2D materials …
Tetradymite Topological Insulators : Towards High Performance Broadband Photodetection,
2019
University at Albany, State University of New York
Tetradymite Topological Insulators : Towards High Performance Broadband Photodetection, Asish Parbatani
Legacy Theses & Dissertations (2009 - 2024)
Topological insulators are characterized by the presence of a finite energy gap in the bulk state and a conducting metallic surface state consisting of odd number of Dirac cones. The conducting surface states are along the edge boundaries, free from disorders and are protected by time reversal symmetry. The presence of Dirac cone leads to universal optical absorption phenomenon like graphene. This phenomenon of universal optical absorption leads to frequency independent photoexcitation of carriers. Bi2Te3, Sb2Te3 and Bi2Se3 belong to tetradymite topological insulators (TTI) family and are often referred to as 3D layered materials. Theoretical predictions characterize TTIs by low …
Stem Education : A Programmatic And Economic Analysis,
2019
University at Albany, State University of New York
Stem Education : A Programmatic And Economic Analysis, Rebecca Kate Laforest
Legacy Theses & Dissertations (2009 - 2024)
Innovations of the 21st century have created a need for a highly skilled and adaptable workforce. In this search, industry representatives are having a difficult time finding highly qualified US candidates. From private firms to public officials and economic analysts to educators, many acknowledge the need to update training and education to better prepare our future workforce. This work will examine the performance of students in the United States, the current employment landscape, the evolution of education in the US, and trends in education to support college and career preparation. This work will then analyze specific facets of new educational …
Partitioning Of Defect Sources And Defects Reduction In Euv Mask Blank Multilayer Deposition,
2019
University at Albany, State University of New York
Partitioning Of Defect Sources And Defects Reduction In Euv Mask Blank Multilayer Deposition, Alin O. Antohe
Legacy Theses & Dissertations (2009 - 2024)
Extreme ultraviolet lithography (EUVL) is the next-generation lithography technology and is slated to replace 193-nanometer argon fluoride (ArF) lithography. EUVL uses 13.5-nanometer wavelength light to expose the photoresist. In doing so it enables the technological achievement of 20-nanometer half-pitch circuits which cannot be achieved with conventional 193-nanometer optical lithography.
Mechanistic Investigation Of Antimony Carboxylate Photoresists For Euv Lithography,
2019
University at Albany, State University of New York
Mechanistic Investigation Of Antimony Carboxylate Photoresists For Euv Lithography, Michael Murphy
Legacy Theses & Dissertations (2009 - 2024)
In 2019, Extreme Ultraviolet (EUV) lithography begins its integration into high volume manufacturing to replace 193-nm lithography at key steps in the fabrication of integrated circuits. To achieve the requirements of the 7- and 5-nm nodes, a new photoresist technology is required to replace traditional chemically-amplified photoresists (CAR). One novel technology incorporates metal atoms with high EUV absorptivity into the photoresist. In this work, we describe the development, evaluation and mechanistic investigation of triorganoantimony(V) dicarboxylate complexes as novel photoresists for EUV lithography.
Exploring Gated Nanoelectronic Devices Fabricated From 1d And 2d Materials,
2019
University at Albany, State University of New York
Exploring Gated Nanoelectronic Devices Fabricated From 1d And 2d Materials, Prathamesh A. Dhakras
Legacy Theses & Dissertations (2009 - 2024)
One and two dimensional materials are being extensively researched toward potential application as ultra-thin body channel materials. The difficulty of implementing physical doping methods in these materials has necessitated various alternative doping schemes, the most promising of which is the electrostatic gating technique due to its reconfigurability. This dissertation explores the different fundamental devices that can be fabricated and characterized by taking advantage of the electrostatic gating of individual single-walled carbon nanotubes (SWNTs), dense SWNT networks and exfoliated 2D tungsten diselenide (WSe2) flakes.
Straintronic Nanomagnetic Devices For Non-Boolean Computing,
2019
Virginia Commonwealth University
Straintronic Nanomagnetic Devices For Non-Boolean Computing, Md Ahsanul Abeed
Theses and Dissertations
Nanomagnetic devices have been projected as an alternative to transistor-based switching devices due to their non-volatility and potentially superior energy-efficiency. The energy efficiency is enhanced by the use of straintronics which involves the application of a voltage to a piezoelectric layer to generate a strain which is ultimately transferred to an elastically coupled magnetostrictive nanomaget, causing magnetization rotation. The low energy dissipation and non-volatility characteristics make straintronic nanomagnets very attractive for both Boolean and non-Boolean computing applications. There was relatively little research on straintronic switching in devices built with real nanomagnets that invariably have defects and imperfections, or their adaptation …
Investigation Of Nano-Ceria Catalyst Infiltration Of Solid Oxide Fuel Cell (Sofc) Electrodes Using Bio-Inspired Catechol Surfactants,
2019
West Virginia University
Investigation Of Nano-Ceria Catalyst Infiltration Of Solid Oxide Fuel Cell (Sofc) Electrodes Using Bio-Inspired Catechol Surfactants, Ozcan Ozmen
Graduate Theses, Dissertations, and Problem Reports (ETD)
Development of solid oxide fuel cell (SOFC) electrodes with nano-structured grains can show enhanced power density with high catalytic activity owing to the higher surface area to volume ratio of the particles. However, the addition of nano-particles during the conventional electrode manufacturing process causes inevitable structural changes due to the coarsening of nano-particles at sintering temperatures. Wet impregnation/ infiltration methods are a practical and well-utilized method to form nanoparticles within the porous electrode microstructure of solid oxide fuel cells (SOFC) which requires relatively low calcination temperatures. Critical factors that impact the reduction of the electrode polarization using the nano-catalyst impregnation …
