The NS Super Chiroptical System - a unique instrument developed for NIST to measure fluorescence-detected circular dichroism (FDCD) of near-infrared fluorophores.
If you are researching right and left enantiomers of single-walled carbon nanotubes (SWCNTs), this is one of the few instruments in the world that can measure a difference. And it is the only instrument that measures 2-dimensional FDCD signals providing a excitation-emission map of chiral signals from a mixed sample of SWCNTs.
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2-dimensional FDCD scan of a racemic (6,5) sample displaying peak splitting and a shift of the peak centers as signals of opposite signs are observed for both enantiomers in the sample. |
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Corresponding near-infrared fluorescence excitation-emission scan of the racemic (6,5) sample displaying a single peak at a wavelength centered between the split peaks observed in the circular dichroism signal. |
The NS Super Chiroptical is a specialized instrument designed to measure chiroptical signals of enantiomers that fluoresce in the near-infrared as a project with NIST. It combines these chiroptical measurements to the NS Super and is configured both for measurements of 2-dimensional fluorescence-detected circular dichroism (FDCD) and rapid-scan excitation-emission scans with continuous visible excitation (500-850 nm) and near-infrared emission (900-1600 nm).This instrument is based on SBIR Phase I & II leading-edge research. For more information please inquire at 713-521-1450 or This email address is being protected from spambots. You need JavaScript enabled to view it..
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NS Super - Rapid Excitation-Emission Scans
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NS Super Chiroptical System Includes:
- Continuous variable supercontinuum excitation source from 500-850 nm
- NIR emission detection from 900-1600 nm
- NIR absorption from 900-1600 nm
- Chiroptical spectroscopy modes
- 2-dimension Fluorescence-Detected Circular Dichroism measurements (excitation scanned from 500-850 nm, emission scanned from 900-1600 nm)
- Traditional FDCD measurements (excitation scanned from 500-850 nm, total near-infrared emission collected)
- Wavelength selected FDCD trace (excitation scanned from 500-850 nm, near-infrared emission collected at a single selected near-infrared wavelength)
- Single chiroptical emission trace (excitation at a single selected visible wavelength, emission scanned from 900-1600 nm)
- User-friendly software
Sample data showing 2D FDCD of (6,5)- and (6,5)+ samples showing signals of opposite signs and their corresponding excitation-emission scans.
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(6,5)- FDCD map
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(6,5)+ FDCD map
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(6,5)- excitation-emission scan
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(6,5)+ excitation-emission scan
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Applied NanoFluorescence delivers the NS Super as a complete turn-key system including a computer pre-loaded with custom software for instrument control and data analysis. The system carries a full one-year warranty plus free software updates for three years.
*Please note the images of the instrument and software are of the prototype and the actual appearance may vary.