title: Purcell factor based understanding of enhancements in surface plasmon-coupled emission with DNA architectures.
abstract: We demonstrate the successful application of DNA thin films as dynamic bio-spacers in a surface plasmon-coupled emission platform. Site-directed DNA modification using silver and carbon nanomaterials resulted in an amplified Purcell factor (PF) and >130-fold fluorescence enhancements. We present unique architectures of DNA as a plasmonic spacer in metal-dielectric-metal substrates.
authors.affiliation: Plasmonics Laboratory, Department of Chemistry, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam Campus, Puttaparthi, Anantapur, Andhra Pradesh - 515134, India. rsaisathish@sssihl.edu.in.
authors.forename: S
authors.initials: S
authors.lastname: Venkatesh
authors.forename: Pradeep Kumar
authors.initials: PK
authors.lastname: Badiya
authors.forename: Sai Sathish
authors.initials: SS
authors.lastname: Ramamurthy
mesh_terms: D002244:Carbon / Q000737:chemistry; D004247:DNA / Q000737:chemistry*; D005453:Fluorescence; D049329:Nanostructures / Q000737:chemistry; D012834:Silver / Q000737:chemistry; D020349:Surface Plasmon Resonance
chemical_list: D012834:Silver; D002244:Carbon; D004247:DNA