RMieS-EMSC

What is the RMieS-EMSC package?

RMieS-EMSC for MASSIVE is a software package developed at the Australian Synchrotron to provide a user friendly interface to use the RMieS-EMSC algorithm and to initiate RMieS-EMSC compute jobs on the Multi-modal Australian ScienceS Imaging and Visualisation Environment (MASSIVE) High Performance Computing cluster.

Please note, we do not distribute copies of the core RMieS-EMSC algorithm but instead provide an easy way to utilise the algorithm for our beamline Users. If you have only a relatively small number of spectra to process or you require a copy of the core algorithm then we recommend you obtain RMieS-EMSC for MATLAB directly from the algorithm’s Authors. They may be contacted by email to: [email protected]. 

The RMieS-EMSC algorithm itself was developed as the result of a research collaboration between the University of Manchester, UK, Dublin Institute of Technology, Dublin, Ireland and Nofima Mat, UMB, Norway (Bassan et al., 2010). 

What is RMieS-EMSC?

Resonant Mie Scattering – Extended Multiplicative Signal Correction (RMieS-EMSC) is often found to be useful for correcting Mie scatter induced baseline distortions occurring in spectra of biological materials. There are many detailed papers outlining how to recognise Mie scattering within your data and we would refer you to the following:

  • P. Bassan, A. Sachdeva, A. Kohler, C. Hughes, A. Henderson, J. Boyle, J.H. Shanks, M. Brown, N.W. Clarkee and P. Gardner, FTIR microscopy of biological cells and tissue: data analysis using resonant Mie scattering (RMieS) EMSC algorithm, Analyst, 2012, 137, 1370.

  • P. Bassan, A. Kohler, H. Martens, J. Lee, H. J. Byrne, P. Dumas, E. Gazi, M. Brown, N. Clarke and P. Gardner, Resonant Mie Scattering (RMieS) correction of infrared spectra from highly scattering biological samples, Analyst, 2010, 135, 268.

  • P. Bassan, H. J. Byrne, F. Bonnier, J. Lee, P. Dumas and P. Gardner, Resonant Mie scattering in infrared spectroscopy of biological materials - understanding the ‘dispersion artefact’, Analyst, 2009, 134, 1586.

How do we access the RMieS-EMSC package?

If you are a User of the Australian Synchrotron Infrared Microspectroscopy (IRM) Beamline and have a large library of spectra or a collection of FTIR hyperspectral images and you wish to take advantage of the computational speed of running RMieS-EMSC corrections on MASSIVE, then you may apply for a MASSIVE login account. Login accounts are granted to Project ASync009 - Resonant Mie Scatter Correction for FTIR Microspectroscopy - IR Beamline Users. You will be provided with software for your PC to allow it to interface with the RMieS-EMSC algorithm running on MASSIVE. Project ASync009 users are required to comply with the Conditions of Use of both the RMieS-EMSC algorithm and MASSIVE as set out in the RMieS-EMSC for MASSIVE USERS’ GUIDE §1.2 Terms of Use. A copy of the Users’ Guide will be provided to you.

How is the package being used by Australian Synchrotron IRM Users?

MASSIVE is being used to computationally model and correct for light scattering effects in Fourier Transform Infrared (FTIR) spectra and hyperspectral FTIR images of biological tissues and cells recorded on the Infrared Microscopy beamline at the Australian Synchrotron. RMieS-EMSC correction of FTIR images and spectral libraries can reveal previously hidden information on the variation of chemical constituents within the samples and can lead to improved classification of the samples’ chemical composition. The MASSIVE High Performance Computing facility allows RMieS-EMSC correction to be performed around 60 times faster than is possible on a typical high-end desktop PC. The extremely rapid RMieS-EMSC correction made possible by MASSIVE significantly reduces the time spent on analysis of synchrotron FTIR microspectroscopic images and datasets.

Some examples of AS infrared microscopy beamline User-lead research projects that have using MASSIVE include studies in the areas of; malaria diagnosis, understanding the effects of radiotherapy for cancer treatment at the cellular level, stem cell therapies, IVF research, climate change effects on microalgae in the Southern Ocean, omega-3 fatty acids content in marine micro-fungi  and soil fertility.

To Join

To join sign up to the Project ASync009 on MASSIVE.

  • New MASSIVE users can request to join the existing ASync009 project here. 
  • Existing MASSIVE users can request to join ASync009 project here.

For any questions regarding the account creation, please contact the MASSIVE help-desk: [email protected] 

Once your account has been confirmed, please download and install the RMieS-EMSC software client below. 

Current RMieS-EMSC version

0.8 release

Windows 32 bit

Windows 64 bit

Package features

  • For large datasets the MASSIVE high performance computing facility enables RMieS-EMSC to be performed up to 100 times faster than is possible on current desktop PCs.

  • User friendly. The MASSIVE desktop, SCP, PuTTY and related software are NOT required.

  • Available for 64 bit and 32 bit (may be deprecated soon) versions of MSWindows.

  • Accepts and outputs FTIR spectra in many popular data formats, allowing further multivariate data analysis.

  • Full step-by-step User Guide provided.

  • Single spectrum preview plotting function.

Screenshots

RMieS_EMSC_for_MASSIVE_1.jpg

 

Software Authors

Keith Bambery, Australian Synchrotron, [email protected]

Acknowledgements

This work is supported by the Multi-modal Australian ScienceS Imaging and Visualisation Environment (MASSIVE) (www.massive.org.au).

References

Bassan, P., Kohler, A., Martens, H., Lee, J., Byrne, H. J., Dumas, P., … Gardner, P. (2010). Resonant Mie scattering (RMieS) correction of infrared spectra from highly scattering biological samples. The Analyst, 135, 268.

P. Bassan, A. Sachdeva, A. Kohler, C. Hughes, A. Henderson, J. Boyle, J.H. Shanks, M. Brown, N.W. Clarkee and P. Gardner, FTIR microscopy of biological cells and tissue: data analysis using resonant Mie scattering (RMieS) EMSC algorithm, The Analyst, 2012, 137, 1370.