5252 Westchester, Ste 150
Houston, TX 77005

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.

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.


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..


NS Super - Rapid Excitation-Emission Scans


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.

(6,5)- FDCD map

(6,5)+ FDCD map


(6,5)- excitation-emission scan

(6,5)+ excitation-emission scan


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.

5252 Westchester Ste 150  •  Houston, TX 77005  •  713-521-1450  •  info@appliednano.com

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