Abstract
As the fundamental understanding of metal-light interactions gains solid grounds, further research has been devoted to construct novel structures that take full advan- tage of such unique interactions, which is called plas- monics. In this report, the preparation of Au-Ag core-shell structures obtained by coating the Au surface with peptide and Raman reporter molecule and depositing an Ag layer on it is reported. The prepared Au-Ag NPs are tested for their surface-enhanced Raman scattering (SERS) perfor- mance. The negatively charged peptides with three different lengths, which are 3 (P1), 15 (P2), and 21 (P3) amino acid long, were chemically attached to 13 nm AuNPs along with Raman reporter molecule, carboxytetramethylrhodamine, and these modified AuNPs were coated with three different shell thickness of Ag metal. The prepared Au-Ag NPs were tested for their SERS performance and found that the Au- Ag NPs prepared with P2 and thickest shell performs best as SERS label.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
