Publications by authors named "Soumyadipta Chakraborty"
Gold nanoparticles (GNPs) are widely utilized in biomedical sensing, environmental monitoring, and imaging due to their tunable localized surface plasmon resonance, which is highly sensitive to aggregation dynamics. Understanding the factors governing GNP aggregation is crucial for optimizing plasmonic sensors and enhancing detection methodologies. Guanidine hydrochloride (GdnHCl), a strong chaotropic agent, influences nanoparticle stability and aggregation, yet its direct role in modulating GNP assembly remains largely unexplored.
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- Forward scattering is studied using evanescent wave coupled cavity ringdown spectroscopy (EW-CRDS) to investigate the behavior of polystyrene microspheres (PSMs) in colloidal suspensions.
- EW-CRDS enhances weak absorption signals and allows for the detection of PSMs by measuring their extinction properties, showing significant results even at very low absorbance levels.
- The research focuses on how the volume fraction of microparticles affects scattering dynamics in aqueous media, which could have important applications in fields like biology and metrology.