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The extreme sensitivity of SERS is dominated by the electromagnetic enhancement, referring to the intense, spatially varying E fields produced by plasmonic coupling between closely spaced metal nanoparticles.
The subject invention is an advanced chlorophyll pulse amplitude modulation fluorometer for environmental monitoring. Detection is achieved by algal biosensors that grow naturally in source drinking waters. The principle of detection is chlorophyll fluorescence measurement.
The present invention provides improved spatial resolution (100 microns or less) for charge particle detection or cold neutron detection with extremely low sensitivity to other radiation such as x-rays or gamma rays, defining the time of the event within ~1 nanoseconds.
An anomaly seen in previous surface sampling probes was a notable occasional inconsistency of timing between spot sampling and signal detection.
This idea expands our current surface sampling probe portfolio, providing additional capabilities not before possible for spot sampling and chemical imaging. We have developed a platform for surface spot sampling using laser assisted sample transfer to solution.
Helium-3 is now so scarce as to be practically unavailable. Boron-10 is a well-known neutron converter isotope with energetic charged daughter particles. All known boron gaseous boron compounds are highly toxic and thus considered unsuitable for widespread deployment.
This invention is a new method for the detection of molecules on a surface at a distance. It combines ultraviolet (UV) and infrared (IR) spectroscopic techniques using standoff detection. A surface is scanned with a tunable IR source.
This invention is a means to sample from a surface for subsequent analysis using the ORNL patented liquid microjunction surface sampling probe used with electrospray ionization, atmospheric pressure chemical ionization or other liquid introduction ionization source for
A method for image reconstruction of moving radionuclide distributions.
The human body liberates over 400 chemicals as we revert back to the dust from whence we came. These volatile organic compounds, amino acids, inorganic constituents, and noxious gases are released from a decaying body at specific time points and in specific ratios.