Quenching of nonlinear photoacoustic signal generation in gold nanoparticles through coating
Genny A. Pang, Christoph Haisch, Jan Laufer
Abstract
The photoacoustic signal generated from specific gold nanoparticles increases nonlinearly with respect to fluence. We demonstrate experimentally that this nonlinear behavior can be quenched with a particle coating, and present a theoretical analysis to explain this behavior. This effect has the potential to be developed into a photoacoustic-based biochemical sensor.
Topics & Concepts
Photoacoustic imaging in biomedicineNanoparticleMaterials scienceCoatingColloidal goldQuenching (fluorescence)SIGNAL (programming language)FluenceNonlinear systemPhotoacoustic effectNanotechnologyPhotoacoustic spectroscopyParticle (ecology)OptoelectronicsOpticsFluorescenceLaserPhysicsOceanographyProgramming languageQuantum mechanicsGeologyComputer sciencePhotoacoustic and Ultrasonic ImagingGold and Silver Nanoparticles Synthesis and ApplicationsThermography and Photoacoustic Techniques