SERS not to be taken for granted in the presence of oxygen. Academic Article

abstract

• Oxidation of the Ag nanoparticle surface has a dramatic effect on the adsorption, orientation, and SERS detection limit of nitroaromatic molecules in aqueous solutions. Ultrasensitive SERS detection of p-nitrophenol can be achieved when oxidation of surface-immobilized Ag nanoparticles is inhibited by replacing the oxygen dissolved in water with argon gas. The presence of silver oxide at the nanoparticle surface hinders charge transfer between the aromatic ring and the underlying Ag metal surface and drastically decreases the overall detection sensitivity.

authors

• Sukhishvili, Svetlana

published proceedings

• J Am Chem Soc

altmetric score

• 6

author list (cited authors)

• Erol, M., Han, Y., Stanley, S. K., Stafford, C. M., Du, H., & Sukhishvili, S

citation count

• 133

complete list of authors

• Erol, Melek||Han, Yun||Stanley, Scott K||Stafford, Christopher M||Du, Henry||Sukhishvili, Svetlana

publication date

• June 2009

publisher

• American Chemical Society (ACS)  Publisher

published in

• Journal of the American Chemical Society  Journal

keywords

• Metal Nanoparticles
• Nitrobenzenes
• Nitrophenols
• Oxidation-Reduction
• Oxygen
• Silver
• Spectrum Analysis, Raman
• Surface Properties

PubMed Central ID

• 19445502

Digital Object Identifier (DOI)

• 10.1021/ja807458x

start page

• 7480

end page

• 7481

volume

• 131

issue

• 22