Question
Explain the working of NP based optical sensors.
Answer :
Word Count : 258
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Nanoparticle-based optical sensors operate by exploiting the unique optical properties of nanoparticles, particularly their ability to interact with light through phenomena such as localized surface plasmon resonance (LSPR). When metallic nanoparticles like gold or silver are exposed to light, their conduction electrons oscillate collectively, leading to strong absorption and scattering at specific wavelengths. This property is highly sensitive to changes in the local environment, such as variations
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