Tags: sensors

Online Presentations (1-20 of 44)

  1. An Experimentalists’ Perspective

    19 Dec 2007 | | Contributor(s):: Arunava Majumdar

    This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational science and engineering.

  2. CHM 696 Lecture 12: Optical Properties of Metal Nanoparticles and Nanoparticle Assemblies II

    05 May 2011 | | Contributor(s):: Alexander Wei

  3. Circuits on Cellulose: From Transistors to LEDs, from Displays to Microfluidics on Paper

    14 Feb 2017 | | Contributor(s):: Andrew Steckl

    In this lecture I will review the use of cellulose-based paper as a material in a variety of electronic (and related) applications, including transistors, light emitting diodes, displays, microfluidics. Paper is a very attractive material for many device applications: very low cost, available in...

  4. Common Materials for Uncommon Microsystems

    18 Jan 2017 | | Contributor(s):: Babak Ziaie

    2016 Adams Lecture, Mechanical Engineering, Purdue University

  5. Fundamental Limits to the Precision of Multicellular Sensing

    27 Jun 2017 | | Contributor(s):: Andrew Mugler

    Here we address, with both theory and experiments, whether cell-cell communication improves concentration- and gradient-sensing precision. We develop a minimal model of collective sensing by cells that communicate via juxtacrine signaling, in which a small molecule is exchanged between...

  6. Geometry of Diffusion and the Performance Limits of Nanobiosensors

    05 Dec 2006 | | Contributor(s):: Muhammad A. Alam, Pradeep Ramachandran Nair

    This presentation demonstrates how the classical diffusion-capture (D-C) model has improved sensor performance, since the D-C model is a "geometry of diffusion" rather than a "geometry of electrostatics." A scaling law based on D-C is also posited; the scaling law resolves many classical puzzles...

  7. High Throughput Screening in Droplet Microreactors (Microfluidics at Interfaces)

    16 Mar 2016 | | Contributor(s):: Amar S. Basu

    This talk will discuss several such technologies being explored in our group.

  8. Illinois iOptics Lecture 4: Advance applications in Nanomaterials, Photovoltaics, Organic/Inorganic Sensors, Materials Science, and Alternative Energies, etc. using Raman and Photoluminescence Technologies

    05 May 2010 | | Contributor(s):: Emmanuel Leroy, Michael Oweimrin

  9. Illinois iOptics Lecture 5: Deposited Nanorod Films for Biosensor Applications

    05 May 2010 | | Contributor(s):: Brian Cunningham

    Planar photonic crystals have been used as the basis of many biological sensing devices. Here, we successfully demonstrated that the combination of a photonic crystal structure and a dielectric nanorod coating prepared by the glancing angle deposition technique can lead to significant increases...

  10. Illinois ME 498 Introduction of Nano Science and Technology, Lecture 20: Sensing and Actuation in Nanoscale

    16 Dec 2009 | | Contributor(s):: Nick Fang, Omar N Sobh

    Sensing and Actuation in NanoscaleTopics: Scanning Tunneling Microscopy Two Modes of Forming STM Images STM Manipulation Atomic Force Microscopy Typical Engaging Curve Imaging in Fluid Shear Force Sensing by Tuning Fork Tip Shape Effects: Containment Tip Shape Effect: Cone Angle Other Imaging...

  11. Illinois Nanohour Seminar: Rapid Label-free Detection of Rotavirus using Photonic Crystal Biosensors

    24 Feb 2009 | | Contributor(s):: Leo L Chan

    Rapid Label-free Detection of Rotavirus using Photonic Crystal Biosensors Presentation Outline Rotavirus Current Detection Method Label-based versus label-free assay Photonic Crystal (PC) Biosensor Biosensor Fabrication Biosensor Operation Assay Protocol Titration Series Comparison with ELISA...

  12. In Search of a Better MEMS-Switch: An Elementary theory of how nanostructured dielectrics may soften landing, increase travel range, and decrease energy dissipation

    03 May 2012 | | Contributor(s):: Muhammad Alam

    In this talk, I will discuss an elementary theory of the role of nanostructured electrodes in addressing some of the challenges from a fundamentally different perspective. The goal is to start a conversation regarding the viability of the approaches suggested and see if the perspective offered...

  13. In Search of the Perfect Semiconductor Photon Detector

    19 May 2008 | | Contributor(s):: Peter Y. Yu

    Photon detectors have many important applications, such as in heat sensing, digital cameras, solar cells and x-ray and gamma-ray detection. So far, the most common detectors are based on elemental semiconductors , such as Si and Ge. However, they are by no means perfect in tackling some of the...

  14. Introduction of MEMS Activity at Nano/Micro System Engineering Lab., Kyoto University

    15 Sep 2007 | | Contributor(s):: OSAMU TABATA

    We are aiming at the realization of microsystems and nanosystems with novel and unique functions by integrating functional elements in different domains such as mechanics, electronics, chemistry, optics and biotechnology. These micro/nano systems are expected to be novel machines, which will...

  15. Lecture 5: 2D Nets in a 3D World: Basics of Nanobiosensors and Fractal Antennae

    27 Oct 2009 | | Contributor(s):: Muhammad A. Alam

    Outline:Background: A different type of transport problem
Example: Classical biosensorsFractal dimension and cantor transformExample: fractal nanobiosensors Conclusions
Appendix: Transparent Electrodes and Antenna

  16. MCW07 Impact of Porphyrin Functional Groups on InAs Gas Sensors

    05 Nov 2007 | | Contributor(s):: Michael Garcia

    Porphyrin molecules are often used for sensor engineering to improve sensitivity and selectivity to specific analytes. It is important to understand how the porphyrin HOMO-LUMO levels deplete surface states during functionalization of solid state sensors. Additionally, the effect of...

  17. MCW07 Modeling Molecule-Assisted Transport in Nanotransistors

    06 Nov 2007 | | Contributor(s):: Kamil Walczak

    Molecular electronics faces many problems in practical device implementation, due to difficulties with fabrication and gate-ability. In these devices, molecules act as the main conducting channel. One could imagine alternate device structures where molecules act as quantum dots rather than...

  18. MCW07 Silicon Based Nanopore Sensors for Detection of DNA Molecules

    11 Sep 2007 | | Contributor(s):: Samir Iqbal, Demir Akin, Rashid Bashir

    Solid-state nanopores have emerged as possible candidates for next-generation DNA sequencing devices. In this talk, we will review our recent work in development of solid-state nanopore channels that are selective towards single strand DNA (ssDNA). Nanopores functionalized with a 'probe' of...

  19. Micro-fabricated Biosensors for Cardiac Diagnostics

    30 Jul 2008 | | Contributor(s):: V.Ramgopal Rao

    In this talk the current status of an ongoing effort in the Electrical Engineering Department at IIT Bombay on the development of an integrated systems to provide point-of-care diagnostic support for cardiovascular diseases will be presented. The system under development monitors the molecular...

  20. Micro-scaled Biochips with Optically Active Surfaces for Near and Far-field Analysis of Cellular Fluorescence

    31 Aug 2007 | | Contributor(s):: Huw Summers

    The integration of thin (< 100 nm) metal films with micro-scaleoptical waveguides provides a route to controlled spatialexcitation of cellular fluorescence within a biochip platform.Surface bound electron-plasma oscillations (surface plasmon waves)interact with photons to produce an...