Tags: sensors

Online Presentations (1-20 of 44)

  1. 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...

  2. Novel Plasmonic Materials and Nanodevices for Integrated Quantum Photonics

    19 Jun 2017 | | Contributor(s):: Mikhail Shalaginov

    This research focuses on color centers in diamond that share quantum properties with single atoms. These systems promise a path for the realization of practical quantum devices such as nanoscale sensors, single-photon sources, and quantum memories. In particular, we explored an intriguing...

  3. Soft, Biocompatible Optoelectronic Interfaces to the Brain

    08 Jun 2017 | | Contributor(s):: John A. Rogers

    In this talk, we will describe foundational concepts in physics and materials science for these types of technologies, in 1D, 2D and 3D architectures. Examples in system level demonstrations include experiments on freely moving animals with ‘cellular-scale’, injectable optofluidic...

  4. 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...

  5. Common Materials for Uncommon Microsystems

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

    2016 Adams Lecture, Mechanical Engineering, Purdue University

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

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

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

  7. [Illinois] Engineering the Mode Coupling in Microrings for Laser and Sensor Applications

    12 Feb 2016 | | Contributor(s):: Lynford Goddard

    The integrated microring Bragg reflector forms the basis of a new family of compact reflective photonic devices. The buildup of field strength in the high quality factor ring resonator configuration yields multiple reflection encounters with the same set of gratings. This enables high...

  8. Smarter Sensors: in Crop Production and Protection

    17 Mar 2015 | | Contributor(s):: Ali Shakouri, Babak Ziaie

  9. Spaser in Quantum Regime

    12 Feb 2015 | | Contributor(s):: Mark I Stockman

    The spaser have been introduced theoretically and discovered experimentally. We briefly consider quantum theory and latest results on spaser as an ultrafast quantum generator and amplifier of nanoplasmonic fields, ultrabright nanolabel, and highly-efficient nanosensor. We present latest original...

  10. [Illinois] ECE 416 SPR Sensors II

    21 May 2013 | | Contributor(s):: Brian Cunningham

               In this lecture, it is a continuation of the SPR Sensors discussed in the last one. We start off with the definition of a Surface Plasmon, which is an oscillation of electrons at the interface between a good conductor and a...

  11. [Illinois] ECE 416 Optical Sensors I

    06 Mar 2013 | | Contributor(s):: Brian Cunningham

               In this lecture, we begin our discussion of Optical Biosensors. We start off by showing the general properties of optical biosensors besides the SPR. Then, we shift our attention to the improvements made to the SPR Sensor's...

  12. [Illinois] ECE 416 SPR Sensors III

    05 Mar 2013 | | Contributor(s):: Brian Cunningham

               In this lecture, we continued the SPR Sensors discussion. We started off with the coupling condition being determined by the refractive index. This means that light now goes through a protein. In the experimental results, it shows...

  13. [Illinois] ECE 416 Electrochemical Sensors

    27 Feb 2013 | | Contributor(s):: Brian Cunningham

               In this lecture, we begin discussing the three types of electrochemical sensors: Potentiometric, Amperometric, and Conductometry. The focus of the lecture is the potentiometric and how it is used to measure the potential...

  14. [Illinois] ECE 416 Glucose Sensor I

    27 Feb 2013 | | Contributor(s):: Brian Cunningham

               In this lecture, we continue the discussion on the oxygen sensor. It starts with a review of the measurement of O2 concentration levels through electrical currents. This is called an amperometric meter. Then, the subject shifts to...

  15. [Illinois] ECE 416 Glucose Sensor II

    27 Feb 2013 | | Contributor(s):: Brian Cunningham

               In this lecture, we looked at the three generations of the glucose sensor and the ways it has changed. The first generation was the one discussed in the previous lecture in which the glucose concentration was found based off of...

  16. [Illinois] ECE 416 Acoustic Wave Sensors

    27 Feb 2013 | | Contributor(s):: Brian Cunningham

               In this lecture, we look at the concepts and theories behind the acoustic wave sensor. This sensor communicates through the vibrational waves in matter. The atoms in the system are displaced, causing an Internal Elastic Restoring...

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

    06 Jun 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...

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

    13 Dec 2011 | | 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...

  19. Nanodays - Space—Lab on Chip Technology: The final frontier

    18 May 2011 | | Contributor(s):: Marshall Porterfield

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

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