Undergrad What is Surface Plasmon Resonance?

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Surface Plasmon Resonance (SPR) is a powerful optical technique used to measure the binding interactions between biomolecules in real-time. It operates by detecting changes in the refractive index near a metal surface when molecules bind to it. This method is widely utilized in various fields, including biosensing, drug discovery, and protein interaction studies. The discussion highlights the availability of a helpful video resource that explains SPR in detail. Understanding SPR can significantly enhance research in molecular interactions and diagnostics.
PhysicsEnjoyer31415
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Can someone please explain to me SPR in detail and mathrmatics of it if any. I have a basic idea that it is something like photoelectric effect but instead of electron a photonof different wavelength is shot off because some of the energy is absorbed by the material. Am i correct ? Please help .Thank you.
Surface_Plasmon_Resonance_(SPR).jpg
 
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There is quite a good video about this at the following URL:-
 
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tech99 said:
There is quite a good video about this at the following URL:-

Thank you
 

Thread 'Reference frames, center of rotation, etc'

Topic about reference frames, center of rotation, postion of origin etc Comoving ref. frame is frame that is attached to moving object, does that mean, in that frame translation and rotation of object is zero, because origin and axes(x,y,z) are fixed to object? Is it same if you place origin of frame at object center of mass or at object tail? What type of comoving frame exist? What is lab frame? If we talk about center of rotation do we always need to specified from what frame we observe?
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