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Published on Feb 19, 2014
Table of Contents: 00:00 Lecture 2.2: Settling time Classical Sensors I 00:47 Outline 01:56 Nanobiosensors are highly sensitive 03:12 Settling time for biosensors 05:42 Fractal geometry allows simple solution 06:59 Response or settling time defined 08:25 A fundamental relationship of biosensor 09:27 Operation of a planar sensor 10:21 Exact solutions for a planar sensor 11:09 Exact solutions for a planar sensor 12:26 The concept of the diffusion distance 14:31 Approximate Solution in 1D: Diffusion Distance 15:51 Approximate Solution in 1D: Diffusion Distance 16:55 Response time of a planar sensor 18:27 Response time of cylindrical sensor 20:46 Geometry of diffusion/sensor response 23:38 A 'Mendeleev table' for biosensors
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.