Open Access. Powered by Scholars. Published by Universities.®

Nanoscience and Nanotechnology Commons

Open Access. Powered by Scholars. Published by Universities.®

2646 Full-Text Articles 4194 Authors 617801 Downloads 60 Institutions

All Articles in Nanoscience and Nanotechnology

Faceted Search

2646 full-text articles. Page 1 of 100.

Molecular Dynamics Simulation Of Tensile Behavior On Ceramic Particles Reinforced Aluminum Matrix Nanocomposites, Heng Gu, Jiaojiao Wang, Zhongwei Li 2016 Rexa Inc.

Molecular Dynamics Simulation Of Tensile Behavior On Ceramic Particles Reinforced Aluminum Matrix Nanocomposites, Heng Gu, Jiaojiao Wang, Zhongwei Li

Heng Gu

The mechanical properties and interfacial structures for aluminum matrix composites reinforced by nanometer-sized SiC-β particles has been studied using molecular dynamics (MD) simulation. The modified embedded atom methods, was implemented to describe the atomic interactions. The molecular model undergoes an annealing MD simulation from 300 K to 1000 K to reach its minimum energy point. Tensile tests were performed with periodic boundary conditions. The stress-strain relationship has been studied and elastic constants were predicted as well. The results were compared with those given by continuum-based finite element analysis (FEA) together with the experimental data available in the literatures. It showed ...


Calcium Phosphate As A Key Material For Socially Responsible Tissue Engineering, Vuk Uskoković, Victoria M. Wu 2016 Chapman University

Calcium Phosphate As A Key Material For Socially Responsible Tissue Engineering, Vuk Uskoković, Victoria M. Wu

Pharmacy Faculty Articles and Research

Socially responsible technologies are designed while taking into consideration the socioeconomic, geopolitical and environmental limitations of regions in which they will be implemented. In the medical context, this involves making therapeutic platforms more accessible and affordable to patients in poor regions of the world wherein a given disease is endemic. This often necessitates going against the reigning trend of making therapeutic nanoparticles ever more structurally complex and expensive. However, studies aimed at simplifying materials and formulations while maintaining the functionality and therapeutic response of their more complex counterparts seldom provoke a significant interest in the scientific community. In this review ...


Metal Assisted Chemical Etching, Inayat Bajwa 2016 Quattrone Nanofabrication Facility

Metal Assisted Chemical Etching, Inayat Bajwa

Protocols and Reports

No abstract provided.


Enhanced Adhesion Of Superhydrophobic Zno Surface, liqiu zheng Dr., Chan Kwaichow B. 2016 Albany State University

Enhanced Adhesion Of Superhydrophobic Zno Surface, Liqiu Zheng Dr., Chan Kwaichow B.

Georgia Journal of Science

The superhydrophobicity and the strong solid-liquid adhesion of the dually structured ZnO surface are attributed to the suitable size of microstructure and nanostructure. This phenomenon, so different from the Lotus effect, can be called the Petal effect— the super hydrophobicity and the enhanced solid-liquid adhesion coexist on the same surface. The Cassie impregnating model was proposed to understand the underlying reason.


Rapid Diagnostics For Infectious Disease Using Noble Metal Nanoparticles, Chun-Wan Yen, Helena de Puig, Justina Tam, José Gómez-Márquez, Irene Bosch, Lee Gehrke, Kimberly Hamad-Schifferli 2016 Massachusetts Institute of Technology

Rapid Diagnostics For Infectious Disease Using Noble Metal Nanoparticles, Chun-Wan Yen, Helena De Puig, Justina Tam, José Gómez-Márquez, Irene Bosch, Lee Gehrke, Kimberly Hamad-Schifferli

UMass Center for Clinical and Translational Science Research Retreat

Rapid point-of-care (POC) diagnostic devices are needed for field-forward screening of severe acute systemic febrile illnesses such as dengue, Ebola, chikungunya, and others. Multiplexed rapid lateral flow diagnostics have the potential to distinguish among multiple pathogens, thereby facilitating diagnosis and improving patient care. We present a platform for multiplexed pathogen detection which uses gold or silver nanoparticles conjugated to antibodies to sense the presence of biomarkers for different infectious diseases. We exploit the size-dependent optical properties of Ag NPs to construct a multiplexed paperfluidic lateral flow POC sensor. AgNPs of different sizes were conjugated to antibodies that bind to specific ...


Three-Dimensional Modeling Of Percolation Behavior Of Electrical Conductivity In Segregated Network Polymer Nanocomposites Using Monte Carlo Method.Pdf, Heng Gu 2016 Texas A&M University

Three-Dimensional Modeling Of Percolation Behavior Of Electrical Conductivity In Segregated Network Polymer Nanocomposites Using Monte Carlo Method.Pdf, Heng Gu

Heng Gu

Polymer nanocomposites filled with carbon nanotubes are observed to present an onset of the insulator-to-conductor transition through previous experimental studies. In this work, numerical simulations based on Monte Carlo method are performed to investigate the percolation threshold. The conductive fillers are modeled as a three dimensional (3D) network of identical units dispersed in the polymer matrix. However, the distribution of the fibers is not uniform due to the existence of the emulsion particles. The effects of the aspect ratio and fiber length on the critical volume fraction are studied. Linearization is made to the logarithm of simulation results. The calculated ...


Three-Dimensional Modeling Of Percolation Behavior Of Electrical Conductivity In Segregated Network Polymer Nanocomposites Using Monte Carlo Method, Heng Gu, Jiaojiao Wang 2016 Rexa Inc.

Three-Dimensional Modeling Of Percolation Behavior Of Electrical Conductivity In Segregated Network Polymer Nanocomposites Using Monte Carlo Method, Heng Gu, Jiaojiao Wang

Heng Gu

Polymer nanocomposites filled with carbon nanotubes are observed to present an onset of the insulator-to-conductor transition through previous experimental studies. In this work, numerical simulations based on Monte Carlo method are performed to investigate the percolation threshold. The conductive fillers are modeled as a three dimensional (3D) network of identical units dispersed in the polymer matrix. However, the distribution of the fibers is not uniform due to the existence of the emulsion particles. The effects of the aspect ratio and fiber length on the critical volume fraction are studied. Linearization is made to the logarithm of simulation results. The calculated ...


Reactive Ion Etch (Rie) Of Silicon And Zep520a Resist Mask With Tetrafluoromethane (Cf4) Using Oxford 80 Plus, Steven Wood, Gerald G. Lopez, Meredith Metzler 2016 University of Pennsylvania

Reactive Ion Etch (Rie) Of Silicon And Zep520a Resist Mask With Tetrafluoromethane (Cf4) Using Oxford 80 Plus, Steven Wood, Gerald G. Lopez, Meredith Metzler

Tool Data

This report discusses the results of etching silicon with electron beam lithography defined features in ZEP520A resist using CF4 in the Oxford 80 Plus RIE.


Self-Aligned Double Pattern, No1, Yinong Cao 2016 University of Pennsylvania

Self-Aligned Double Pattern, No1, Yinong Cao

Protocols and Reports

No abstract provided.


Plasma Enhanced Chemical Vapor Deposition (Pecvd) Of Silicon Dioxide (Sio2), Meredith Metzler 2016 Singh Center for Nanotechnology

Plasma Enhanced Chemical Vapor Deposition (Pecvd) Of Silicon Dioxide (Sio2), Meredith Metzler

Tool Data

This report discusses the deposition process of SiO2 using the Oxford System 100 PECVD.


Reactive Ion Etch (Rie) Of Silicon Dioxide (Sio2) With Tetrafluoromethane (Cf4), Meredith Metzler 2016 Singh Center for Nanotechnology

Reactive Ion Etch (Rie) Of Silicon Dioxide (Sio2) With Tetrafluoromethane (Cf4), Meredith Metzler

Tool Data

This report discusses the CF4 etch process of SiO2 using the Oxford 80 Plus RIE.


Plasma Enhanced Chemical Vapor Deposition (Pecvd) Of Silicon Nitride (Sinx), Meredith Metzler 2016 Singh Center for Nanotechnology

Plasma Enhanced Chemical Vapor Deposition (Pecvd) Of Silicon Nitride (Sinx), Meredith Metzler

Tool Data

This report discusses the deposition process of SiNx using the Oxford System 100 PECVD.


Reactive Ion Etch (Rie) Of Silicon Nitride (Sinx) With Tetrafluoromethane (Cf4), Meredith Metzler 2016 Singh Center for Nanotechnology

Reactive Ion Etch (Rie) Of Silicon Nitride (Sinx) With Tetrafluoromethane (Cf4), Meredith Metzler

Tool Data

This report discusses the CF4 etch process of SiNx using the Oxford 80 Plus RIE.


Reactive Ion Etch (Rie) Of Silicon Dioxide (Sio2) With Trifluoromethane And Oxygen (Chf3/O2), Meredith Metzler 2016 Singh Center for Nanotechnology

Reactive Ion Etch (Rie) Of Silicon Dioxide (Sio2) With Trifluoromethane And Oxygen (Chf3/O2), Meredith Metzler

Tool Data

This report discusses the CHF3/O2 etch process of SiO2 using the Oxford 80 Plus RIE.


Reactive Ion Etch (Rie) Of Silicon Nitride (Sinx) With Trifluoromethane And Oxygen (Chf3/O2), Meredith Metzler 2016 Singh Center for Nanotechnology

Reactive Ion Etch (Rie) Of Silicon Nitride (Sinx) With Trifluoromethane And Oxygen (Chf3/O2), Meredith Metzler

Tool Data

This report discusses the CHF3/O2 etch process of SiNx using the Oxford 80 Plus RIE.


Direct Band Gap Gallium Antimonide Phosphide (Gasbxp1-X) For Solar Fuels., Harry Benjamin Russell 2016 University of Louisville

Direct Band Gap Gallium Antimonide Phosphide (Gasbxp1-X) For Solar Fuels., Harry Benjamin Russell

Electronic Theses and Dissertations

Photoelectrochemical water splitting has been identified as a promising route for achieving sustainable energy future. However, semiconductor materials with the appropriate optical, electrical and electrochemical properties have yet to be discovered. In search of an appropriate semiconductor to fill this gap, GaSbP, a semiconductor never tested for PEC performance is proposed here and investigated. Density functional theory (DFT+U) techniques were utilized to predict band gap and band edge energetics for GaSbP alloys with low amount of antimony. The overall objective of this dissertation is to understand the suitability of GaSbxP1-x alloys for photoelectrochemical water splitting application ...


Effects Of Surface Topography And Vibrations On Wetting: Superhydrophobicity, Icephobicity And Corrosion Resistance, Rahul Ramachandran 2016 University of Wisconsin-Milwaukee

Effects Of Surface Topography And Vibrations On Wetting: Superhydrophobicity, Icephobicity And Corrosion Resistance, Rahul Ramachandran

Theses and Dissertations

Concrete and metallic materials are widely used in construction and water industry. The interaction of both these materials with water and ice (or snow) produces undesirable results and is therefore of interest. Water that gets absorbed into the pores of dry concrete expands on freezing and can lead to crack formation. Also, the ice accretion on concrete surfaces such as roadways can have disastrous consequence. Metallic components used in the water industry undergo corrosion due to contact with aqueous corrosive solutions. Therefore, it is desirable to make concrete water/ice-repellent, and to make metallic surfaces corrosion-resistant.

Recent advances in micro ...


Atomic Force Microscopy Based Dna Analysis, Drew Creighton 2016 University of Arkansas, Fayetteville

Atomic Force Microscopy Based Dna Analysis, Drew Creighton

Mechanical Engineering Undergraduate Honors Theses

This report explores dry and wet scanning of a surface and DNA pickup using an AFM, as well as fluorescent staining of DNA. Dry and wet scans of DNA were obtained using a cantilever AFM tip in tapping mode. Dry scans were found to be clearer than wet scans; however, the drying process was found to decrease the thickness of DNA 2–4 times less than its original thickness. Alternately, wet scans were found to be less clear than dry scans and introduced more noise into the images obtained. Additionally, DNA kept its initial thickness during wet scanning. DNA was ...


Acceleration Of Ddscat Computation By Parallelization On A Supercomputer, Manoj V. Seeram 2016 University of Arkansas, Fayetteville

Acceleration Of Ddscat Computation By Parallelization On A Supercomputer, Manoj V. Seeram

Chemical Engineering Undergraduate Honors Theses

The DDSCAT software is enabled for use of MPI or OpenMP to distribute calculation of different particle orientations amongst multiple processors on a high performance system. Run times for these simulations have been tested to take hours or days however and simulating varying orientations is not always necessary. If a simulation with only one particle orientation is submitted, DDSCAT could still potentially parallelize the simulation by wavelength calculations but it is unknown if this is the case. In this paper, we will be (i) quantifying the reduction in computation time that MPI provides relative to an equivalent MPI disabled simulation ...


Optical Analysis And Fabrication Of Micro And Nanoscale Plasmonically Enhanced Devices, Avery M. Hill 2016 University of Arkansas, Fayetteville

Optical Analysis And Fabrication Of Micro And Nanoscale Plasmonically Enhanced Devices, Avery M. Hill

Physics Undergraduate Honors Theses

Plasmonic nanostructures have been shown to act as optical antennas that enhance optical devices due to their ability to focus light below the diffraction limit of light and enhance the intensity of the incident light. This study focuses on computational electromagnetic (CEM) analysis of two devices: 1) GaAs photodetectors with Au interdigital electrodes and 2) Au thin-film microstructures. Experiments showed that the photoresponse of the interdigital photodetectors depend greatly on the electrode gap and the polarization of the incident light. Smaller electrode gap and transverse polarization give rise to a larger photoresponse. It was also shown that the response from ...


Digital Commons powered by bepress