Collections

AFM Resources

Resources from Arvind Raman's Presentation.

 

2 reposts

Profile picture of Abhilash Chandrashekar

Abhilash Chandrashekar onto AFM

Electrochemical sensing of analytes is mostly enabled by transducers based on potentiometry and amperometry. In this, design of sensing (working) electrode is of utmost importance since it only decides the sensitivity and selectivity features of the sensor. Chemical modification of the electrode surface, especially with nanosized materials constitutes an important approach to achieve the desired goals. Clinical diagnostics, involving rapid analysis of physiologically important molecules is a contemporary area attracting the electrochemists.

Carbon electrodes have been modified with nanocomposites of poly (3,4-ethylenedioxy thiophene (PEDOT) and gold nanoparticles were prepared and characterized. The modified electrode enables amperometric detection of dopamine (DA) at nanomolar levels and exhibits excellent selectivity for DA over ascorbic acid. Further the modified electrode is able to estimate amperometrically µM concentrations of uric acid in presence of ascorbic acid. The efficacy of the electrodes has been tested with real samples. Analysis of another important molecule, hydrogen peroxide at nanomolar levels has been achieved using carbon electrode modified with a nanocomposite comprising nanosized Prussian Blue moieties and Au nanoparticles. Carbon electrodes have been advantageously employed to detect µM levels of triclosan, an antimicrobial agent in healthcare formulations. An electrochemical sensor for the estimation of glycated hemoglobin has been developed for the first time and it is expected to play an important role in the management of diabetes mellitus. Some interesting results of these investigations will be discussed.

2 reposts

Profile picture of Mohsen Saeidi

Mohsen Saeidi onto Biology

Electrochemical materials and its application to energy storage and conversion devices, such as batteries and fuel cells are a rapidly growing field, particularly for portable technologies and electric and hybrid vehicles. This course will deliver an introduction to the modeling and simulation of rechargeable batteries by starting from basic electrochemistry principles. Applications to currently existing and emerging rechargeable batteries (lithium-ion batteries in particular) will be reviewed. …

12 reposts

Profile picture of Mohsen Saeidi

Mohsen Saeidi onto Characterization

Open Source Friendly Graphical User Interface for the classic dualfoil (Newman) model

7 reposts

Profile picture of Mohsen Saeidi

Mohsen Saeidi onto Characterization

This is a Formula Sheet designed for a Fields and waves course at The University of Texas at El Paso as a part of a program to uplift the education. The book \“University Physics with Modern Physics\” (12th Edition) by Hugh D. Young and Roger A. Freedman was used as source. Covers formulas for chapters 21, 22 and 23. Diagrams and table organized.

University Physics with Modern Physics (12th Edition) by Hugh D. Young and Roger A. Freedman University Physics with Modern Physics (12th Edition) …

2 reposts

Profile picture of Mohsen Saeidi

Mohsen Saeidi onto Characterization

Common mistakes and misinterpretations associated with the collection and interpretation of x-ray diffraction data.

3 reposts

Profile picture of Mohsen Saeidi

Mohsen Saeidi onto Characterization

DNA has been well known for over 50 years as the predominant chemical for duplication and storage of genetic information in biology. Now DNA has also been recognized as a useful building material in the field of nanotechnology. DNA provides basic building blocks for constructing functionalized nanostructures with four major features: molecular recognition, self-assembly, programmability and predictable nanoscale structures. DNA self-assembly can lead to nanoarchitectures with complex …

2 reposts

Profile picture of Mohsen Saeidi

Mohsen Saeidi onto Biology

A five-week course on the basic physics that govern materials at atomic scales.

62 reposts

Profile picture of Armando Morin

Armando Morin onto To watch

An undergraduate level course designed to provide an introduction to materials science.

1 reposts

Profile picture of Armando Morin

Armando Morin onto To watch

Fall 2010 A course for students interested in learning the fundamentals underlying Atomic Force Microscopy.

39 reposts

Profile picture of Mohsen Saeidi

Mohsen Saeidi onto Characterization

Guidelines for Writing NEEDS-certified Verilog-A Compact Models

This resource by Tianshi Wang, Jaijeet Roychowdhury introduces the fundamentals of compact models along with ways on writing a compact model. It includes tips on writing a comprehensive compact model with Verilog A and to a certain extent SPICE. This is useful for my group since we are trying to publish a NEEDs certified compact model for the first time and since our model might require more supporting contents alongside it, this presentation fully covers what we are missing so far for publishing.

0 reposts

ab initio simulations with ORCA

The tool allows geometry optimizations with or without constrains, normal modes analysis and automatic ionization energy calculation. This is an ideal tool for any field because visualizing hybridization of atoms can be really tricky, thus making this useful for physical applications. ORCA is a Quantum chemistry program. 

0 reposts

DFT Material Properties Simulator

This tool allows the user to run DFT calculations using Quantum Espresso to calculate material properties. The tool can do band structure E-K diagrams, dielectric constants and optical properties, density of states, equations of state, and thermoelectric calculations.

0 reposts

Jupyter Notebooks for Scientific Programming

This presentation by Martin Hunt (a senior software engineer for HUBzero) explains what Jupyter Notebook is and how it compares to other environments (i.e. Rappture). He walks the audience through the steps of various examples to highlight the different features and plug-ins that Jupyter Notebooks provides. (Thus, the presentation in itself is fairly short; walking through the steps make the video a little longer.) 

I found this presentation especially helpful because my group and I are updating a nanoHUB tool using Jupyter Notebook. I do not have any experience using Jupyter Notebook (or Python in general), so I found this video presentation really useful. Now, although I cannot yet code in Python, I have an idea of how it functions. Hopefully, others who need a little more information about Jupyter Notebooks will find this resource just as helpful.

0 reposts

Profile picture of ASHLEY MIN

ASHLEY MIN onto NCN URE 2018 - Good nanoHUB Resources

MATLAB Tutorial

This tool shows you some of the basic functions of MATLAB and has slides showing the common commands used in MATLAB.

0 reposts

Plastic Deformation at the Nanoscale by Dr. Koslowski

This source was a video lesson taught by Dr. Koslowski. I determined this to be a valuable resource because Dr. Koslowski describes a very important phenomenon that occurs during compaction of plastic and elastoplastic materials. Upon looking at a stress-strain curve, the start of the curve is almost always linear, and Young’s modulus is derived from it’s slope. However, eventually the line curves and stops becoming linear. This is the result of plastic deformation, when the material or particle’s shape is being permanently altered as a result of the load. Dr. Koslowski explains that on a nano-scale, these permanent deformations occur as a result of dislocations of microscopic planes of the particle. The dislocations arise from the particle’s atoms shifting after reaching a yield point of pressure. This source helped me develop a deeper understanding of the mechanism that causes plastic deformation. 

0 reposts

Quantum Coherent Effects in Photosynthesis

    This online presentation describes process from the light energy as electronic excitation to the reaction center within picoseconds. They have found out that there is surprisingly long-lived electronic coherences in this process. In this presentation, the presenter also discusses the theoretical studies of the quantum dynamics of a prototypical photosynthetic light harvesting complex, the Fenna-Metthews-Olson (FMO) complex, which is helpful for me to understand the function of FMO. 

1 reposts

Profile picture of Qifeng Chen

Qifeng Chen onto NCN URE 2018 - Good nanoHUB Resources

Introduction to Bioinformatics

This resource is an online course on the topic of Bioinformatics, taught by Dr. Saurabh Sinha from University of Illinois at Urbana-Champaign. In my field, the study of bioinformatics and the development of data-analyzing tools are important to analyze large sets of data. This resource is very helpful to understand the basics of bioinformatics.

0 reposts

Fundamental of Nanoelectronics

This is a nanoHUB online course for nanoelectronics, which is taught by Professor Datta. I recently start to watch this course which helps me understand many theories about electronics which is in nano scale. 

0 reposts

Profile picture of Yiheng Zhu

Yiheng Zhu onto NCN URE 2018 - Good nanoHUB Resources

Simulate charge carrier density, potential drops and energy band diagram across a vertical 1D slice in a VdW heterostructure of 2D materials under different applied voltage to the layers.

3 reposts

Profile picture of Selena Zhang

Selena Zhang onto FET

Series and Parallel Calculator

This is a neat calculator that allows you to get a quick calculation of the resistance, capacitance, or inductance of a circuit. You can actually add quite a few objects to the circuit. The tool provides a good hands-on application of Kirchhoff's Laws.

0 reposts

Jupyter Notebooks on Hubs

This is a link to a short presentation that discusses the use of Jupyter Notebooks and its role in the academic environment. It includes a *.pdf slide that is essentially a quick-start guide to writing (tools) code that can be quickly tested online via Jupyter Notebooks.

0 reposts

NanoHUB Resource: Equilibrium Wulff Shape Generator

This tool is used to simulate the surface energies of different types of crystal systems. For each miller index, you can provide a bias that changes the overall ways the surface energies affect the end shape.

2 reposts

Simulates the current-voltage characteristics for bulk, SOI, and double-gate Field Effect Transistors (FETs)

52 reposts

Profile picture of Nikolaos Makris

Nikolaos Makris onto TOOLS