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Terahertz Applications Group

Department of Chemical Engineering and Biotechnology

Studying at Cambridge

 

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New paper: Evidence for a universal change in hydrogen bonding structure below the glass transition temperature

New paper: Evidence for a universal change in hydrogen bonding structure below the glass transition temperature

In our latest paper, just published in the Journal of Physical Chemistry Letters, we present data that indicates that the Johari-Goldstein secondary relaxation (which is inter-molecular in nature) is still of significant strength at terahertz frequencies below the glass transition temperature. Intriguingly we found that it disappears at the same relative temperature in all hydrogen bonding samples we studied (0.65 T/Tg).

New paper: Evidence for a universal change in hydrogen bonding structure below the glass transition temperature - Read More…

Open postdoc position

We are looking for a postdoc to work with us on the application of THz-TDS for the quantitative analysis of solvation shells around macromolecules.

Open postdoc position - Read More…

PhD Studentship available in our group

A studentship is available in our group to investigate the dynamics of hydrogen-bonded amorphous drug molecules at terahertz frequencies

PhD Studentship available in our group - Read More…

A new method for prediction of amorphous drug stability

A new method for prediction of amorphous drug stability

A new method for measuring of molecular mobility in glassy materials has been developed using terahertz spectroscopy. The absorption level of amorphous drugs at terahertz frequencies below Tg correlates with the stability of the drug as an amorphous solid. The molecular mobility responsible for the glass crystallisation significantly decreases at around a universal value of 0.67 Tg. This explains why the commonly used rules of thumb for glasses to remain stable below 0.8 Tg or Tg – 20 K do not work reliably.

A new method for prediction of amorphous drug stability - Read More…

CDT in Sensor Technologies and Application funded

One new centre providing postgraduate training approved by the Engineering and Physical Sciences Research Council (EPSRC): CDT in Sensor Technologies and Applications

CDT in Sensor Technologies and Application funded - Read More…

New paper: Crystallisation and phase changes from amorphous paracetamol

New paper: Crystallisation and phase changes from amorphous paracetamol

We used terahertz spectroscopy to investigate the crystallisation and phase changes in paracetamol from the amorphous solid to the liquid phase

New paper: Crystallisation and phase changes from amorphous paracetamol - Read More…

New Paper in ACS Nano

New Paper in ACS Nano

Low-Bias THz Amplitude Modulator Based on Split-Ring Resonators and Graphene

New Paper in ACS Nano - Read More…

New paper published in Materials Horizons

New paper published in Materials Horizons

Work on restricted intramolecular rotations of tetraphenylethylene was published in Materials Horizons, a new journal launched by the RSC earlier this year.

New paper published in Materials Horizons - Read More…

3rd Terahertz Spectroscopy Meeting

3rd Terahertz Spectroscopy Meeting

All current members of our group attended the 3rd Terahertz Spectroscopy Meeting organised by the Molecular Spectroscopy Group and the East Anglia Region of the RSC.

3rd Terahertz Spectroscopy Meeting - Read More…

Editor's choice paper

A paper published by the Terahertz Applications Group earlier in the year was selected by the editors of the Journal of Pharmaceutical Sciences as their pick of the most original and most significant scientific findings published in the preceding three issues (July 2013 - September 2013).

Editor's choice paper - Read More…

TAG joins Faraday Discussion 167

TAG joins Faraday Discussion 167

TAG participated in RSC Faraday Discussion 167: Mesostructure and dynamics in liquids and solutions

TAG joins Faraday Discussion 167 - Read More…

TAG Goes to Lille

Group visit to the annual meeting of the Pharmaceutical Solid State Research Cluster

TAG Goes to Lille - Read More…

CETIIB undergraduate research project successfully finished

08/06/2013: Miriam Franklin and Michael Sargent have successfully finished their CETIIB undergraduate research project on "Terahertz spectroscopy for polymer characterisation and investigation of amorphous pharmaceuticals". Well done!

CETIIB undergraduate research project successfully finished - Read More…

20 Years, Chemical Engineering Strikes Back

First dedicated chemical engineering conference was carried out by IChemE at Imperial College London

20 Years, Chemical Engineering Strikes Back - Read More…

New TSB grant

The TSB awarded a grant to the Terahertz Application Group to develop a terahertz sensor for automobiles paints measurement

New TSB grant - Read More…