“Superchiral” Spectroscopy: Detection of Protein Higher Order Hierarchical Structure with Chiral Plasmonic Nanostructures
نویسندگان
چکیده
منابع مشابه
"Superchiral" Spectroscopy: Detection of Protein Higher Order Hierarchical Structure with Chiral Plasmonic Nanostructures.
Optical spectroscopic methods do not routinely provide information on higher order hierarchical structure (tertiary/quaternary) of biological macromolecules and assemblies. This necessitates the use of time-consuming and material intensive techniques, such as protein crystallography, NMR, and electron microscopy. Here we demonstrate a spectroscopic phenomenon, superchiral polarimetry, which can...
متن کاملChiral Plasmonic Nanostructures
Noble-metal nanoparticles (NPs) occupy the top drawer in the toolbox of scientists working with optical materials. These NPs confine light in extremely small volumes, and their individual scattering properties can be designed virtually at will by shaping and arranging the NPs carefully. When their behaviour is considered collectively, the NPs can also be used as building blocks (meta-atoms or m...
متن کاملElectron Energy Loss Spectroscopy of a Chiral Plasmonic Structure
A detailed analysis of the plasmonic excitations within a nanopatterned gold chiral biosensor element, measured by scanning transmission electron microscopy electron energy loss spectroscopy, is presented. We discuss aspects of data acquisition, processing, analysis and simulation. The localised surface plasmonic resonance modes in the structure are extracted using non-negative matrix factorisa...
متن کاملChiral plasmonic DNA nanostructures with switchable circular dichroism
Circular dichroism spectra of naturally occurring molecules and also of synthetic chiral arrangements of plasmonic particles often exhibit characteristic bisignate shapes. Such spectra consist of peaks next to dips (or vice versa) and result from the superposition of signals originating from many individual chiral objects oriented randomly in solution. Here we show that by first aligning and th...
متن کاملGlucose and Froctose Detection Using Raman Spectroscopy and Plasmonic Substrates Coated with Gold Nanoparticles
This article has no abstract.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2015
ISSN: 0002-7863,1520-5126
DOI: 10.1021/jacs.5b04806