Nano letters, 2013-09, Vol.13 (9), p.4299-4304
2013
Volltextzugriff (PDF)
Details
- Autor(en) / Beteiligte
- Titel
- Plasmon-Assisted Delivery of Single Nano-Objects in an Optical Hot Spot
- Ist Teil von
- Nano letters, 2013-09, Vol.13 (9), p.4299-4304
- Ort / Verlag
- Washington, DC: American Chemical Society
- Erscheinungsjahr
- 2013
- Quelle
- Alma/SFX Local Collection
- Beschreibungen/Notizen
- Fully exploiting the capability of nano-optics to enhance light-matter interaction on the nanoscale is conditioned by bringing the nano-object to interrogate within the minuscule volume where the field is concentrated. There currently exists several approaches to control the immobilization of nano-objects but they all involve a cumbersome delivery step and require prior knowledge of the “hot spot” location. − Herein, we present a novel technique in which the enhanced local field in the hot spot is the driving mechanism that triggers the binding of proteins via three-photon absorption. This way, we demonstrate exclusive immobilization of nanoscale amounts of bovine serum albumin molecules into the nanometer-sized gap of plasmonic dimers. The immobilized proteins can then act as a scaffold to subsequently attach an additional nanoscale object such as a molecule or a nanocrystal. This universal technique is envisioned to benefit a wide range of nano-optical functionalities including biosensing, − enhanced spectroscopy like surface-enhanced Raman spectroscopy , or surface-enhanced infrared absorption spectroscopy, as well as quantum optics. ,,
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1530-6984eISSN: 1530-6992DOI: 10.1021/nl402071pTitel-ID: cdi_proquest_miscellaneous_1753481814
- Format
- –
- Schlagworte
- Binding, Collective excitations (including excitons, polarons, plasmons and other charge-density excitations), Condensed matter: electronic structure, electrical, magnetic, and optical properties, Condensed matter: structure, mechanical and thermal properties, Cross-disciplinary physics: materials science, rheology, Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures, Exact sciences and technology, General equipment and techniques, Hot spots, Immobilization, Infrared absorption, Instruments, apparatus, components and techniques common to several branches of physics and astronomy, Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties, Materials science, Nanocrystalline materials, Nanoscale materials and structures: fabrication and characterization, Nanostructure, Physics, Plasmonics, Proteins, Sensors (chemical, optical, electrical, movement, gas, etc.), remote sensing, Spectroscopy, Surface and interface electron states, Surfaces and interfaces, thin films and whiskers (structure and nonelectronic properties)