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How surface plasmon resonance works — why gold nanoparticles are red, how the electron sea oscill...
Gold is yellow in bulk, but shrink it to nanoparticle size and it turns ruby red — because the electron sea on each particle literally sloshes back and forth at the frequency of green light, absorbing it and leaving red to scatter. This same resonance is how modern biosensors detect a single binding event: a molecule landing on the gold shifts the oscillation, and we read the color change.
#SurfacePlasmonResonance #Nanotechnology #Biosensors #PhysicsExplained #STEM
Видео How surface plasmon resonance works — why gold nanoparticles are red, how the electron sea oscill... канала Scientific Nipsey
#SurfacePlasmonResonance #Nanotechnology #Biosensors #PhysicsExplained #STEM
Видео How surface plasmon resonance works — why gold nanoparticles are red, how the electron sea oscill... канала Scientific Nipsey
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19 мая 2026 г. 7:00:32
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