RAPID DETECTION AND IDENTIFICATION OF ENERGETIC MATERIALS WITH SURFACE ENHANCED RAMAN SPECTROMETRY (SERS)

摘要

In one embodiment, a system includes a plurality of metal nanoparticles functionalized with a plurality of organic molecules tethered thereto, each organic molecule having a primary face and a secondary face. The plurality of organic molecules preferentially interact with the one or more analytes when placed in proximity therewith. The plurality of organic molecules comprise one or more of: one or more modifying groups on the primary face in place of one or more primary hydroxyl groups; and one or more modifying groups on the secondary face in place of one or more secondary hydroxyl groups. At least one of the one or more analytes is an energetic compound. In another embodiment, a method includes chemically modifying a plurality of cyclodextrin molecules at a primary hydroxyl moiety to create a chemical handle; and tethering the plurality of cyclodextrin molecules to a metal nanoparticle using the chemical handle.

主权项

1. A system, comprising:
a plurality of metal nanoparticles functionalized with a plurality of organic molecules tethered thereto, each organic molecule having a primary face and a secondary face, wherein the plurality of organic molecules are characterized by preferentially interacting with one or more analytes when placed in proximity therewith, wherein the plurality of organic molecules comprise one or more of:
one or more modifying groups on the primary face in place of one or more primary hydroxyl groups; andone or more modifying groups on the secondary face in place of one or more secondary hydroxyl groups, wherein at least one of the one or more analytes is an energetic compound.