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Synthesis of Multi-Sized and Multi-Shaped Gold Nanoparticles to Evaluate Light Scattering Profile Using Particulate Matter Sensor
Location: 33
Mentor: Dr. Pratim Biswas
The principle of light scattering is used in several aerosol instruments to measure the size, number concentration and mass concentration on a real time scale. The light scattering properties of particles are a strong function of particle shape, size and composition. At present, all the light scattering aerosol instruments assume the shape of particle as spherical to perform the measurements, however in real life scenario such as atmospheric aerosols; particles are present in all shape, size and composition. Very little is known about the light scattering profile of non-spherical particles. In this study, we aim to evaluate the light scattering profile of multi-sized and multi-shaped gold nanoparticles using particulate matter sensor. The synthesis of gold nanoparticles allows the direct manipulation of the size and shape of the nanoparticle. The shape of gold nanoparticles can range from spherical and rhombic structures to rod-like structures depending on the synthesis method. By using these nanoparticles as a testing material, further data compilation and analysis of the size and shape of the particles is performed to understand the light scattering profile of synthesized nanomaterials. The results from this study will help in enhancing the detection and measuring capability of particles by particulate matter.
