Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Feb 15, 2016
Table of Contents: 00:09 Lecture 4.4: Selectivity - Noise in Transducers 01:04 Outline 02:10 Selectivity issue due to biomolecules 04:29 Noise is also a Selectivity Problem 06:10 Noise in various lectures 07:16 Recall: Three types of sensors 08:45 Noise in Potentiometric Sensors 12:05 Noise in Amperometric Sensor 12:28 Noise in Cantilever Sensors 13:07 White noise and Pink Noise 14:28 Outline 14:30 Thermal (White) Noise in a Resistor 17:45 White noise from various sources 19:21 Origin of Pink Noise: Trapping/Detrapping 20:46 1/f noise 22:04 Example of 1/f noise 23:10 Outline 23:23 Selectivity: A problem of Information theory? 23:42 Resampling for improved SNR 25:13 White noise and Pink Noise 26:20 Signal averaging improves SNR dramatically 27:34 Conclusions
This course provides an in-depth analysis of the origin of the extra-ordinary sensitivity, fundamental limits, and operating principles of modern nanobiosensors. The primary focus is the physics of biomolecule detection in terms of three elementary concepts: response time, sensitivity, and selectivity. And, it potentiometric, amperometric, and cantilever-based mass sensors to illustrate the application of these concepts to specific sensor technologies.