Publications

Decoupled MOF breathing : pressure-induced reversal of correlation between orthogonal motions in a diamondoid framework

Brammer Lee, Ashworth David, Carrington Elliot J, Roseveare Thomas M, McMonagle Charles J, Ward Martin R, Fletcher Ashleigh J, Düren Tina, Warren Mark R, Moggach Stephen A, Oswald Iain DH

Angewandte Chemie International Edition (2025)

https://doi.org/10.1002/anie.202504297

Spatial and temporal visualization of polymorphic transformations in pharmaceutical tablets

Gasol-Cardona Julia, Ward Martin R, Gutowski Olof, Drnec Jakub, Jandl Christian, Stam Danny, Maloney Andrew G P, Markl Daniel, Price Stephen W T, Oswald Iain D H

Angewandte Chemie International Edition Vol 64 (2025)

https://doi.org/10.1002/anie.202412976

Calibration free approaches for rapid polymorph discrimination via low frequency (THz) Raman spectroscopy

Chong Magdalene W S, Ward Martin R, McFarlan Catriona, Parrott Andrew J, Dallin Paul, Andrews John, Oswald Iain D H, Nordon Alison

Chemical Communications Vol 61, pp. 925-928 (2024)

https://doi.org/10.1039/D4CC05591H

The role of cavitation and gas bubbles in the non-photochemical laser-induced nucleation of sodium acetate

Barber Eleanor R, Ward Martin R, Alexander Andrew J

CrystEngComm Vol 26, pp. 3634-3642 (2024)

https://doi.org/10.1039/D4CE00487F

Exploring the effects of high pressure on hydrogen bonding in pharmaceutical cocrystals : a systematic study of pyridine dicarboxylic acid systems using synchrotron and neutron diffraction

Ward Martin R, Bull Craig L, Funnell Nicolas P, Warren Mark R, Oswald Iain DH

International Journal of Pharmaceutics Vol 647 (2023)

https://doi.org/10.1016/j.ijpharm.2023.123514

Pushing technique boundaries to probe conformational polymorphism

Ward Martin R, Taylor Christopher R, Mulvee Matthew T, Lampronti Giulio I, Belenguer Ana M, Steed Jonathan W, Day Graeme M, Oswald Iain D H

Crystal Growth and Design Vol 23, pp. 7217-7230 (2023)

https://doi.org/10.1021/acs.cgd.3c00641

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Professional Activities

Application of calibration free approaches for rapid polymorph discrimination by Raman spectroscopy

Contributor

21/10/2024

Application of calibration free approaches for rapid polymorph discrimination by low frequency Raman spectroscopy

Contributor

25/4/2024

Recovery of high pressure solid forms to ambient pressure

Speaker

9/7/2019

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Projects

Investigation of pyrazine:diacid co-crystal systems at high pressure

Oswald, Iain (Principal Investigator) Ward, Martin (Co-investigator) Bull, Craig L. (Co-investigator) Funnell, Nicholas P. (Co-investigator)

The aim of this proposal is to follow the changes in the hydrogen bonding
interaction in the pyrazine:oxalic acid and the Pyrazine:maleic acid co-crystals to complete our combined synchrotron and neutron study of the pyrazine:diacid
system.

01-Jan-2020 - 06-Jan-2020

Investigation of maleic-d2 acid isomerization at high pressure

Ward, Martin (Principal Investigator) Oswald, Iain (Co-investigator)

We will use central facilities time (ISIS neutron and muon facility) to study the conversion of maleic to fumaric acid under high pressure and temperature conditions. Experiments performed in-house show that temperature of pressure alone do not significantly influence the conversion of maleic to fumaric acid; however, the combination of both does result in successful conversion. Neutron experiments will elucidate the conversion in-situ, as it progresses, and allow us to identify ciritcal conditions of temperature and pressure to cause this conversion.

26-Jan-2019

laser-induced nucleation at extreme conditions

Ward, Martin (Principal Investigator) Oswald, Iain (Co-investigator) Alexander, Andrew J (Co-investigator)

In this work we will explore the use of a focussed beam of light to cause crystals to form inside our high-pressure sample holder. The use of laser light (pulse and continuous) has been shown to be able to cause nucleation (the first step of crystallization) to occur at ambient conditions, we will continue with this to (i) see if it is applicable to high pressure conditions, and (ii) develop the methodology to assist with nucleation studies at extreme conditions.

16-Jan-2019

small-angle X-ray scattering at high pressure

Ward, Martin (Principal Investigator)

Experiments performed in order to assess the possibility to collect good solution phase SAXS data using a conventional diamond anvil cell high pressure cell.

11-Jan-2018 - 13-Jan-2018

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