Infrared (IR) Spectroscopy

Oct 01, 2014
Spectroscopy
Macro attenuated total reflection FT-IR spectroscopic imaging is a powerful and underutilized tool. This article presents an overview of approaches and opportunities for using this method to study dynamic processes such as diffusion, sorption, crystallization, and dissolution.
Sep 01, 2014
Application Notebook
By Spectroscopy Editors
What if the decisions neurosurgeons make during surgery — such as about how much tissue to remove — could be guided by immediate results from spectroscopic methods? A number of spectroscopy researchers are seeking to advance methods to make that both possible and practical.
Sep 01, 2014
Application Notebook
When images are measured in reflectance, the observed structure is not necessarily just that of the sample surface.
Aug 01, 2014
Special Issues
By Spectroscopy Editors
Resonance-enhanced atomic force microscopy (AFM)–infrared (IR) is a new technique that couples an atomic force microscope with a pulsed tunable IR laser source to provide high spatial resolution chemical analysis of samples as thin as a monolayer. The AFM probe tip acts as a small local detector of the thermal expansion of the sample caused by the absorption of the monochromatic IR radiation.
Aug 01, 2014
Special Issues
By Spectroscopy Editors
The mechanical properties of polymer films such as tensile strength and resistance to tearing depend strongly on the orientation of the polymer chains. Fourier transform infrared (FT-IR) spectroscopy can be used to measure the degree of orientation both within the plane of the film and normal to it.
Aug 01, 2014
Special Issues
By Spectroscopy Editors
Counterfeit and illicit tobacco may contain potentially toxic organic impurities that result in adverse health effects to the consumer. The aim of this work was to investigate the feasibility of the identification of organic impurities in counterfeit or illicit tobacco using attenuated total reflectance-Fourier transform infrared (ATR-FT-IR) spectroscopy.
Aug 01, 2014
Special Issues
By Spectroscopy Editors
Law enforcement relies upon "schedules" or lists of controlled substances. In an attempt to circumvent the law, clandestine laboratories produce synthetic designer drugs that are chemically related to a controlled substance, but are different enough to raise legal issues with prosecution.
Jun 09, 2014
Wavelength
By Spectroscopy Editors
What if the decisions neurosurgeons make during surgery - such as about how much tissue to remove - could be guided by immediate results from spectroscopic methods? A number of spectroscopy researchers are seeking to advance methods to make that both possible and practical. One such researcher is Allison Stelling, who recently completed her PhD under Professor Peter Tonge at Stony Brook University in New York. Stelling is currently at the Center for Materials Genomics at Duke University, in Durham, North Carolina, working under Professor Stefano Curtarolo.
Jun 01, 2014
Spectroscopy
In these types of IR imaging, various factors contribute to the observed resolution. These factors are illustrated with images of materials with known structures.
Jun 01, 2014
Spectroscopy
By Spectroscopy Editors
An interview with Allison Stelling, a recent PhD from Prof. Peter Tonge's group at Stony Brook University in New York, exploring the use of IR spectroscopy for use in intraoperative diagnostics during brain surgery.
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