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Particle stability. Several characteristics are important when determining an organic chemical's fate and transport in the environment, including its volatilization, solubility, sorption or partitioning and reaction in the environment. Traditionally, most chemicals regulated by the EPA are characterized by these previous criteria.
Peony-shaped gold nanoparticles with an uneven core-shell structure, their preparation methods and applications
This invention provides peony-shaped gold nanoparticles with an uneven core-shell structure, their preparation method, and applications. We first prepare 50 nm diameter gold nanospheres, then add HAuCl₄, and perform centrifugation and stirring to finally obtain the target product. This structure significantly improves surface roughness and increases the distribution density of electromagnetic "hot spots" while ensuring good particle stability, thereby enhancing the sensitivity of the SERS signal.
Owner:SHENMIN (SHANGHAI) BIOTECHNOLOGY CO LTD