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Nanotechnology Fabrication Commons

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380 full-text articles. Page 5 of 18.

Investigation Of Cnt-Induced Escherichia Coli Lysis And Protein Release, Abdollah Mosleh 2016 University of Arkansas, Fayetteville

Investigation Of Cnt-Induced Escherichia Coli Lysis And Protein Release, Abdollah Mosleh

Theses and Dissertations

This research investigated the use of carbon nanotubes (CNTs) as a treatment to increase the permeability of a bacterial cell wall. Recombinant Escherichia coli BL21 (DE3) containing a plasmid that expressed Green Fluorescent Protein (GFP) and -lactamase were exposed to CNTs under various levels of agitation for different times. Fluorescence assay for GFP, optical absorbance for -lactamase activity, and Transmission Electron Microscopy (TEM) were used to determine the amount of released protein, and visually examine the permeability enhancement of the cells, respectively. It was found that more -lactamase was present in the culture fluid after treatment with CNTs in a ...


Simultaneous Behavior Onset Detection And Task Classification For Patients With Parkinson Disease Using Subthalamic Nucleus Local Field Potentials, Nazanin Zaker Habibabadi 2016 University of Denver

Simultaneous Behavior Onset Detection And Task Classification For Patients With Parkinson Disease Using Subthalamic Nucleus Local Field Potentials, Nazanin Zaker Habibabadi

Electronic Theses and Dissertations

This thesis aims to develop of methods for behavior onset detection of patients with Parkinson's disease (PD), as well as to investigate the models for classification of different behavioral tasks performed by PD patient. The detection is based on recorded Local Field Potentials (LFP) of the Subthalamic nucleus (STN), captured through Deep Brain Stimulation (DBS) process.

One main part of this work is dedicated to the research of various properties and features of the STN LFP signals of several patients' behavior conditions. Features based on temporal and time-frequency analysis of the signals are developed and implemented. Evaluation and comparison ...


Spin Curves For Microchem S1800 (1805, 1813, 1818) Series Positive Resist, Mohsen Azadi, Gerald G. Lopez 2016 Singh Center for Nanotechnology

Spin Curves For Microchem S1800 (1805, 1813, 1818) Series Positive Resist, Mohsen Azadi, Gerald G. Lopez

Tool Data

Spin curves for MicroChem's S1805, S1813, and S1818 were generated and mapped using the Filmetrics F50. Statistical measurements were performed (N=85) and are reported here.


Nanofabrication And Spectroscopy Of Magnetic Nanostructures Using A Focused Ion Beam, Ali Hadjikhani 2016 FIU

Nanofabrication And Spectroscopy Of Magnetic Nanostructures Using A Focused Ion Beam, Ali Hadjikhani

FIU Electronic Theses and Dissertations

This research used a focused ion beam in order to fabricate record small nano-magnetic structures, investigate the properties of magnetic materials in the rarely studied range of nanometer size, and exploit their extraordinary characteristics in medicine and nano-electronics. This study consists of two parts: (i) Fabrication and study of record small magnetic tunnel junctions (ii) Introduction of a novel method for detection of magnetoelectric nanoparticles (MENs) in the tissue.

A key challenge in further scaling of CMOS devices is being able to perform non-volatile logic with near zero power consumption. Sub-10-nm nanomagnetic spin transfer torque (STT) magnetic tunneling junctions (MTJs ...


Sonochemical Synthesis Of Zinc Oxide Nanostructures For Sensing And Energy Harvesting, Phani Kiran Vabbina 2016 Department of Electrical and Computer Engineering, Florida International University

Sonochemical Synthesis Of Zinc Oxide Nanostructures For Sensing And Energy Harvesting, Phani Kiran Vabbina

FIU Electronic Theses and Dissertations

Semiconductor nanostructures have attracted considerable research interest due to their unique physical and chemical properties at nanoscale which open new frontiers for applications in electronics and sensing. Zinc oxide nanostructures with a wide range of applications, especially in optoelectronic devices and bio sensing, have been the focus of research over the past few decades. However ZnO nanostructures have failed to penetrate the market as they were expected to, a few years ago. The two main reasons widely recognized as bottleneck for ZnO nanostructures are (1) Synthesis technique which is fast, economical, and environmentally benign which would allow the growth on ...


Design And Implementation Of An Integrated Biosensor Platform For Lab-On-A-Chip Diabetic Care Systems, Khandaker Abdullah Al Mamun 2016 University of Tennessee - Knoxville

Design And Implementation Of An Integrated Biosensor Platform For Lab-On-A-Chip Diabetic Care Systems, Khandaker Abdullah Al Mamun

Doctoral Dissertations

Recent advances in semiconductor processing and microfabrication techniques allow the implementation of complex microstructures in a single platform or lab on chip. These devices require fewer samples, allow lightweight implementation, and offer high sensitivities. However, the use of these microstructures place stringent performance constraints on sensor readout architecture. In glucose sensing for diabetic patients, portable handheld devices are common, and have demonstrated significant performance improvement over the last decade. Fluctuations in glucose levels with patient physiological conditions are highly unpredictable and glucose monitors often require complex control algorithms along with dynamic physiological data. Recent research has focused on long term ...


Genotoxicity Of Graphene In Escherichia Coli, Ananya Sharma 2016 University of Arkansas, Fayetteville

Genotoxicity Of Graphene In Escherichia Coli, Ananya Sharma

Theses and Dissertations

Rapid advances in nanotechnology necessitate assessment of the safety of nanomaterials in the resulting products and applications. One key nanomaterial attracting much interest in many areas of science and technology is graphene. Graphene is a one atom thick carbon allotrope arranged in a two-dimensional honeycomb lattice. In addition to being extremely thin, graphene has several extraordinary physical properties such as its exceptional mechanical strength, thermal stability, and high electrical conductivity. Graphene itself is relatively chemically inert and therefore pristine graphene must undergo a process called functionalization, which is combination of chemical and physical treatments that change the properties of graphene ...


Investigation Of Optical Properties Of Zinc Oxide Photodetector, Tyler Chism 2016 University of Arkansas, Fayetteville

Investigation Of Optical Properties Of Zinc Oxide Photodetector, Tyler Chism

Theses and Dissertations

UV photodetection devices have many important applications for uses in biological detection, gas sensing, weaponry detection, fire detection, chemical analysis, and many others. Today’s photodetectors often utilize semiconductors such as GaAs to achieve high responsivity and sensitivity. Zinc oxide, unlike many other semiconductors, is cheap, abundant, non-toxic, and easy to grow different morphologies at the micro and nano scale. With the proliferation of these devices also comes the impending need to further study optics and photonics in relation to phononics and plasmonics, and the general principles underlying the interaction of photons with solid state matter and, specifically, semiconductors. For ...


Advanced Graphene Microelectronic Devices, Chowdhury G. Al-Amin 2016 Florida International University

Advanced Graphene Microelectronic Devices, Chowdhury G. Al-Amin

FIU Electronic Theses and Dissertations

The outstanding electrical and material properties of Graphene have made it a promising material for several fields of analog applications, though its zero bandgap precludes its application in digital and logic devices. With its remarkably high electron mobility at room temperature, Graphene also has strong potential for terahertz (THz) plasmonic devices. However there still are challenges to be solved to realize Graphene’s full potential for practical applications.

In this dissertation, we investigate solutions for some of these challenges. First, to reduce the access resistances which significantly reduces the radio frequency (RF) performance of Graphene field effect transistors (GFETs), a ...


High Contrast 50kv E-Beam Lithography For Hsq Atop Diamond Using Espacer For Spin-On Charge Dissipation, Richard R. Grote, Lee C. Bassett, Gerald G. Lopez 2016 University of Pennsylvania

High Contrast 50kv E-Beam Lithography For Hsq Atop Diamond Using Espacer For Spin-On Charge Dissipation, Richard R. Grote, Lee C. Bassett, Gerald G. Lopez

Protocols and Reports

A high contrast HSQ process atop diamond is presented. A water soluable spin-on conductive layer called ESPACER is used as a charge dissipation layer in lieu of a metal thin film.


Suss Microtec Ma6 Gen3 - S1813 Contrast Curve Data, Jonathan Bryan, Steven Wood, Gerald G. Lopez 2016 University of Pennsylvania

Suss Microtec Ma6 Gen3 - S1813 Contrast Curve Data, Jonathan Bryan, Steven Wood, Gerald G. Lopez

Protocols and Reports

No abstract provided.


Suss Microtec Ma6 Gen3 - S1818 Contrast Curve Data, Jonathan Bryan, Steven Wood, GERALD G. LOPEZ 2016 University of Pennsylvania

Suss Microtec Ma6 Gen3 - S1818 Contrast Curve Data, Jonathan Bryan, Steven Wood, Gerald G. Lopez

Protocols and Reports

No abstract provided.


New Flexible Channels For Room Temperature Tunneling Field Effect Transistors, Boyi Hao, Anjana Asthana, Paniz K. Hazaveh, Paul L. Bergstrom, Douglas Banyai, Madhusudan A. Savaikar, John A. Jaszczak, Yoke Khin Yap 2016 Michigan Technological University

New Flexible Channels For Room Temperature Tunneling Field Effect Transistors, Boyi Hao, Anjana Asthana, Paniz K. Hazaveh, Paul L. Bergstrom, Douglas Banyai, Madhusudan A. Savaikar, John A. Jaszczak, Yoke Khin Yap

John Jaszczak

No abstract provided.


Heidelberg Dwl66+ S1813 Contrast Curves, Steven Wood, GERALD G. LOPEZ 2016 University of Pennsylvania

Heidelberg Dwl66+ S1813 Contrast Curves, Steven Wood, Gerald G. Lopez

Protocols and Reports

Accurately gauge the optimal machine setting for MicroChem S1813 using the Heidelberg DWL 66+ and plot the contrast curves for the 2mm and 10mm writeheads.


Heidelberg Dwl66+ S1818 Contrast Curves, Steven Wood, GERALD G. LOPEZ 2016 University of Pennsylvania

Heidelberg Dwl66+ S1818 Contrast Curves, Steven Wood, Gerald G. Lopez

Protocols and Reports

Accurately gauge the optimal machine setting for MicroChem S1818 using the Heidelberg DWL 66+ and plot the contrast curves for the 2mm and 10mm writeheads.


Heidelberg Dwl66+ S1805 Contrast Curves, Steven Wood, Gerald G. Lopez 2016 University of Pennsylvania

Heidelberg Dwl66+ S1805 Contrast Curves, Steven Wood, Gerald G. Lopez

Protocols and Reports

Accurately gauge the optimal machine setting for MicroChem S1805 using the Heidelberg DWL 66+ and obtain contrast curves based on the 2mm and 10mm writehead.


Nanosphere Lithography And Its Application In Rapid And Economic Fabrication Of Plasmonic Hydrogenated Amorphous Silicon Photovoltaic Devices, Chenlong Zhang 2016 Michigan Technological University

Nanosphere Lithography And Its Application In Rapid And Economic Fabrication Of Plasmonic Hydrogenated Amorphous Silicon Photovoltaic Devices, Chenlong Zhang

Dissertations, Master's Theses and Master's Reports

Solar photovoltaic (PV) devices harvest energy from solar radiation and convert it to electricity. PV technologies, as an alternative to traditional fossil fuels, use clean and renewable energy while minimizing pollution. For decades researchers have been developing thin film solar cells as an important alternatives to the relatively expensive bulk crystal solar cell technology. Among those, hydrogenated amorphous silicon (a-Si:H) solar cells prevails for good efficiency, non-toxic and materially abundant nature. However, a-Si:H thickness must be minimized to prevent light induced degradation, so optical enhancement is necessary. Light manipulation has to be applied and carefully engineered to trap ...


Beyond Conventional C-Plane Gan-Based Light Emitting Diodes: A Systematic Exploration Of Leds On Semi-Polar Orientations, Morteza Monavarian 2016 Virginia Commonwealth University

Beyond Conventional C-Plane Gan-Based Light Emitting Diodes: A Systematic Exploration Of Leds On Semi-Polar Orientations, Morteza Monavarian

Theses and Dissertations

Despite enormous efforts and investments, the efficiency of InGaN-based green and yellow-green light emitters remains relatively low, and that limits progress in developing full color display, laser diodes, and bright light sources for general lighting. The low efficiency of light emitting devices in the green-to-yellow spectral range, also known as the “Green Gap”, is considered a global concern in the LED industry. The polar c-plane orientation of GaN, which is the mainstay in the LED industry, suffers from polarization-induced separation of electrons and hole wavefunctions (also known as the “quantum confined Stark effect”) and low indium incorporation efficiency that ...


Hybrid Straintronics-Spintronics: Energy-Efficient Non-Volatile Devices For Boolean And Non-Boolean Computation, Ayan K. Biswas 2016 Virginia Commonwealth University

Hybrid Straintronics-Spintronics: Energy-Efficient Non-Volatile Devices For Boolean And Non-Boolean Computation, Ayan K. Biswas

Theses and Dissertations

Research in future generation computing is focused on reducing energy dissipation while maintaining the switching speed in a binary operation to continue the current trend of increasing transistor-density according to Moore’s law. Unlike charge-based CMOS technology, spin-based nanomagnetic technology, based on switching bistable magnetization of single domain shape-anisotropic nanomagnets, has the potential to achieve ultralow energy dissipation due to the fact that no charge motion is directly involved in switching. However, switching of magnetization has not been any less dissipative than switching transistors because most magnet switching schemes involve generating a current to produce a magnetic field, or spin ...


Research On Microelectronics And Nanotechnologies At Georgia Tech, Oliver Brand 2016 Institute for Electronics and Nanotechnology

Research On Microelectronics And Nanotechnologies At Georgia Tech, Oliver Brand

Review of Progress in Quantitative Nondestructive Evaluation

The presentation provides an overview of the nanotechnology fabrication resources available at Georgia Tech’s Institute for Electronics and Nanotechnology (IEN) and highlights some of the research activities enabled by them. The IEN cleanrooms and characterization labs are part of the NSF-funded National Nanotechnology Coordinated Infrastructure (NNCI) and are used by almost 700 researchers on an annual base. Supported activities range from materials and process development to micro/nano device and system integration.


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