I What is Surface Plasmon Resonance?

Click For Summary
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
Gold Member
Messages
65
Reaction score
33
TL;DR
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
 
Physics news on Phys.org
There is quite a good video about this at the following URL:-
 
Reply
  • Like
Likes PhysicsEnjoyer31415
tech99 said:
There is quite a good video about this at the following URL:-

Thank you
 
Thread 'Why higher speeds need more power if backward force is the same?'

Thread 'Why higher speeds need more power if backward force is the same?'

Power = Force v Speed Power of my horse = 104kgx9.81m/s^2 x 0.732m/s = 1HP =746W Force/tension in rope stay the same if horse run at 0.73m/s or at 15m/s, so why then horse need to be more powerfull to pull at higher speed even if backward force at him(rope tension) stay the same? I understand that if I increase weight, it is hrader for horse to pull at higher speed because now is backward force increased, but don't understand why is harder to pull at higher speed if weight(backward force)...
View full post »

Similar threads

What is Plasmonic Photocatalysis and How Can It Help Remove Hydrogen Sulfide?
  • · Replies 1 ·
Replies
1
Views
2K
I Can surface plasmons be used to build GeV gamma-ray lasers?
  • · Replies 2 ·
Replies
2
Views
2K
B What is the difference between standing wave and resonance?
  • · Replies 18 ·
Replies
18
Views
2K
I What is the significance of coupling in surface plasmons and plasmon polaritons?
  • · Replies 1 ·
Replies
1
Views
2K
I Do vocal tract resonances assist a singer's pitch control?
  • · Replies 12 ·
Replies
12
Views
2K
I Resonant Frequency Formula for a given object
  • · Replies 2 ·
Replies
2
Views
2K
Negative permittivity of metals – light-trapping and plasmon
  • · Replies 1 ·
Replies
1
Views
2K
B Resonance state - Alternating current
  • · Replies 23 ·
Replies
23
Views
2K
A What is the bulk plasmon peak?
  • · Replies 2 ·
Replies
2
Views
3K
I Resonance gets sharper just by increasing the resonance freq, why?
  • · Replies 5 ·
Replies
5
Views
1K