Structure Investigations of Energetic and Pharmaceutical Nanoscale Composites Via AFM-TERS and SERS
Author | : Jakob Hübner |
Publisher | : |
Total Pages | : 0 |
Release | : 2020 |
ISBN-13 | : OCLC:1244293342 |
ISBN-10 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Structure Investigations of Energetic and Pharmaceutical Nanoscale Composites Via AFM-TERS and SERS written by Jakob Hübner and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tip Enhanced Raman Spectroscopy based on Atomic Force Microscopy (AFM-TERS) is applied to study the structure of diverse nanoscale energetic and pharmaceutical composites. AFM-TERS investigations of nanoscale CL-20/HMX co-crystals demonstrate that CL-20/HMX surfaces consist of a molecular layer of HMX. Experimental results are supported by an approximation of vibrational normal coordinates allowing to exclude the appearance of relatively strong HMX Raman intensities because of a specific arrangement between CL-20/HMX nano co crystals and the Raman scattering systems. Diverse nanoscale RDX and TNT mixtures differing in their weight percentage ratio are analyzed with AFM-TERS. The combination of far-field Raman spectroscopy and surface sensitive TERS enabled the identification of anisotropic RDX/TNT core/shell nanoparticles. Submicron Furosemide-PVP particles are investigated by confocal far-field Raman microscopy and Surface Enhanced Raman microscopy. Furosemide-PVP particles are directly sputtered with thin layers of silver. The comparison of far- and near-field Raman spectra reveals that shells of PVP encapsulate Furosemide cores.