All Stories

  1. Steps towards numerical verification of the terahertz in-line measurement of tablet mixing by means of discrete element modelling

    Article • IET Microwaves Antennas & Propagation, August 2018, the Institution of Engineering and Technology (the IET)

    Dr Axel Zeitler , James Elliott

  2. Insight into how a liquid breaks up tablets during disintegration

    Article • Journal of Pharmaceutical Sciences, October 2015, Elsevier

    Dr Axel Zeitler

  3. Predicting Crystallization of Amorphous Drugs with Terahertz Spectroscopy

    Article • Molecular Pharmaceutics, August 2015, American Chemical Society (ACS)

    Dr Axel Zeitler

  4. Impact of Processing Conditions on Inter-tablet Coating Thickness Variations Measured by Terahertz In-Line Sensing

    Article • Journal of Pharmaceutical Sciences, August 2015, Elsevier

    Dr Axel Zeitler

  5. Comparisons of intra-tablet coating variability using DEM simulations, asymptotic limit models, and experiments

    Article • Chemical Engineering Science, July 2015, Elsevier

    Dr Axel Zeitler

  6. Estimation of Young’s modulus of pharmaceutical tablet obtained by terahertz time-delay measurement

    Article • International Journal of Pharmaceutics, July 2015, Elsevier

    Dr Axel Zeitler

  7. Diffusion and Swelling Measurements in Pharmaceutical Powder Compacts Using Terahertz Pulsed Imaging

    Article • Journal of Pharmaceutical Sciences, May 2015, Elsevier

    Dr Axel Zeitler

  8. Probing Phase Transitions in Simvastatin with Terahertz Time-Domain Spectroscopy

    Article • Molecular Pharmaceutics, March 2015, American Chemical Society (ACS)

    Dr Axel Zeitler

  9. Probing hydrogen-bonding in binary liquid mixtures with terahertz time-domain spectroscopy: a comparison of Debye and absorption analysis

    Article • Physical Chemistry Chemical Physics, January 2015, Royal Society of Chemistry

    Dr Axel Zeitler

  10. A new perspective on catalytic dehydrogenation of ethylbenzene: the influence of side-reactions on catalytic performance

    Article • Catalysis Science & Technology, January 2015, Royal Society of Chemistry

    Dr James McGregor, Dr Axel Zeitler

  11. Terahertz Time-Domain and Low-Frequency Raman Spectroscopy of Organic Materials

    Article • Applied Spectroscopy, January 2015, SAGE Publications

    Dr Axel Zeitler

  12. Investigation of the terahertz vibrational modes of ZIF-8 and ZIF-90 with terahertz time-domain spectroscopy

    Article • Chemical Communications, January 2015, Royal Society of Chemistry

    Dr Axel Zeitler

  13. Non-contact weight measurement of flat-faced pharmaceutical tablets using terahertz transmission pulse delay measurements

    Article • International Journal of Pharmaceutics, December 2014, Elsevier

    Dr Axel Zeitler

  14. Evaluation of critical process parameters for inter-tablet coating uniformity of active-coated GITS using Terahertz Pulsed Imaging

    Article • European Journal of Pharmaceutics and Biopharmaceutics, October 2014, Elsevier

    Dr Axel Zeitler

  15. Probing solid-state reaction mechanisms with THz-TDS

    Article • September 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  16. Terahertz car paint thickness sensor: Out of the lab and into the factory

    Article • September 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  17. Mesoscopic Structuring and Dynamics of Alcohol/Water Solutions Probed by Terahertz Time-Domain Spectroscopy and Pulsed Field Gradient Nuclear Magnetic Resonance

    Article • The Journal of Physical Chemistry, August 2014, American Chemical Society (ACS)

    Dr Carmine D'Agostino, Dr James McGregor, Dr Axel Zeitler

  18. Terahertz Sensor for Non-Contact Thickness and Quality Measurement of Automobile Paints of Varying Complexity

    Article • IEEE Transactions on Terahertz Science and Technology, July 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  19. Thermal Decoupling of Molecular-Relaxation Processes from the Vibrational Density of States at Terahertz Frequencies in Supercooled Hydrogen-Bonded Liquids

    Article • The Journal of Physical Chemistry Letters, June 2014, American Chemical Society (ACS)

    Dr Axel Zeitler

  20. Terahertz optical modulator based on metamaterial split-ring resonators and graphene

    Article • Optical Engineering, May 2014, SPIE

    Dr Axel Zeitler

  21. Crystallization and Phase Changes in Paracetamol from the Amorphous Solid to the Liquid Phase

    Article • Molecular Pharmaceutics, April 2014, American Chemical Society (ACS)

    Dr Axel Zeitler

  22. Detection of porosity of pharmaceutical compacts by terahertz radiation transmission and light reflection measurement techniques

    Article • International Journal of Pharmaceutics, April 2014, Elsevier

    Dr Axel Zeitler

  23. Low-Bias Terahertz Amplitude Modulator Based on Split-Ring Resonators and Graphene

    Article • ACS Nano, March 2014, American Chemical Society (ACS)

    Dr Axel Zeitler

  24. Graphene-based optical modulator realized in metamaterial split-ring resonators operating in the THz frequency range

    Article • March 2014, SPIE

    Dr Axel Zeitler

  25. Analysis of the Hydration Water around Bovine Serum Albumin Using Terahertz Coherent Synchrotron Radiation

    Article • The Journal of Physical Chemistry A, January 2014, American Chemical Society (ACS)

    Dr Axel Zeitler , Dr Robert J Falconer

  26. Direct evidence to support the restriction of intramolecular rotation hypothesis for the mechanism of aggregation-induced emission: temperature resolved terahertz spectra of tetraphenylethene

    Article • Materials Horizons, January 2014, Royal Society of Chemistry

    Dr Axel Zeitler

  27. Terahertz Optical Modulator Based on Metamaterial Split-ring Resonators and Graphene

    Article • January 2014, Optical Society of America (OSA)

    Dr Axel Zeitler

  28. Non-Destructive Evaluation of Polymer Coating Structures on Pharmaceutical Pellets Using Full-Field Optical Coherence Tomography

    Article • Journal of Pharmaceutical Sciences, January 2014, Elsevier

    Dr Axel Zeitler

  29. Evaluation of critical process parameters for intra-tablet coating uniformity using terahertz pulsed imaging

    Article • European Journal of Pharmaceutics and Biopharmaceutics, November 2013, Elsevier

    Dr Axel Zeitler

  30. Evaluating the effect of coating equipment on tablet film quality using terahertz pulsed imaging

    Article • European Journal of Pharmaceutics and Biopharmaceutics, November 2013, Elsevier

    Dr Axel Zeitler , Professor Jukka Rantanen

  31. Intrinsic terahertz plasmon signatures in chemical vapour deposited graphene

    Article • Applied Physics Letters, September 2013, American Institute of Physics

    Dr Axel Zeitler

  32. Terahertz spectroscopy of hydrogen-bonded glass-forming liquids

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  33. Angular profile determination of a THz-time domain spectrometer

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  34. Terahertz sensing of supercooled glycerol using a 1D photonic crystal

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  35. Microstructure analysis of confined liquids with terahertz time-domain spectroscopy

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  36. Aqueous diffusion in porous polymer powder compacts studied by terahertz pulsed imaging

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  37. Studying pharmaceutical tablet coating process with real-time terahertz in-line sensing

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  38. Structural evolution of tetraphenylethene with temperature observed using THz-TDS

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  39. Hardness and Density Distributions of Pharmaceutical Tablets Measured by Terahertz Pulsed Imaging

    Article • Journal of Pharmaceutical Sciences, July 2013, Elsevier

    Dr Axel Zeitler

  40. Critical Factors in the Measurement of Tablet Film Coatings Using Terahertz Pulsed Imaging

    Article • Journal of Pharmaceutical Sciences, June 2013, Elsevier

    Dr Axel Zeitler

  41. Dispersion relations for evaluating the complex refractive index of medium without the information of its thickness

    Article • Applied Physics Letters, May 2013, American Institute of Physics

    Dr Axel Zeitler

  42. Glassy dynamics of sorbitol solutions at terahertz frequencies

    Article • Physical Chemistry Chemical Physics, January 2013, Royal Society of Chemistry

    Dr Axel Zeitler

  43. Terahertz Spectroscopy and Imaging

    Article • January 2013

    Dr Axel Zeitler

  44. Validation of Terahertz Coating Thickness Measurements Using X-ray Microtomography

    Article • Molecular Pharmaceutics, December 2012, American Chemical Society (ACS)

    Dr Axel Zeitler

  45. Prediction of dissolution time and coating thickness of sustained release formulations using Raman spectroscopy and terahertz pulsed imaging

    Article • European Journal of Pharmaceutics and Biopharmaceutics, April 2012, Elsevier

    Dr Axel Zeitler

  46. Terahertz Spectroscopy of Crystalline and Non-Crystalline Solids

    Article • January 2012, Springer Science + Business Media

    Dr Axel Zeitler

  47. Industrial Applications of Terahertz Imaging

    Article • January 2012, Springer Science + Business Media

    Dr Axel Zeitler

  48. Using THz-TDS of ethyl lactate/water mixtures to gain insight into solvent dynamics

    Article • October 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  49. Terahertz near-field imaging using subwavelength plasmonic apertures and a quantum cascade laser source

    Article • Optics Letters, June 2011, Optical Society of America (OSA)

    Dr Axel Zeitler

  50. Terahertz In-Line Sensor for Direct Coating Thickness Measurement of Individual Tablets During Film Coating in Real-Time

    Article • Journal of Pharmaceutical Sciences, April 2011, Elsevier

    Dr Axel Zeitler

  51. Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography

    Article • Optics and Lasers in Engineering, March 2011, Elsevier

    Dr Axel Zeitler

  52. Terahertz spectroscopy of inorganic glasses and carbon nanotubes

    Article • January 2011, Royal Society of Chemistry

    Dr Axel Zeitler

  53. Terahertz and far infrared Spectroscopy of alanine-rich peptides having variable ellipticity

    Article • Optics Express, December 2010, Optical Society of America (OSA)

    Dr Axel Zeitler , Dr Robert J Falconer

  54. Local Computed Tomography Using a THz Quantum Cascade Laser

    Article • IEEE Sensors Journal, November 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  55. Atomic charge distribution in sodosilicate glasses from terahertz time-domain spectroscopy

    Article • Physical Review B, October 2010, American Physical Society (APS)

    Dr Axel Zeitler

  56. Broad spectrum measurement of the birefringence of an isothiocyanate based liquid crystal

    Article • Applied Optics, September 2010, Optical Society of America (OSA)

    Dr Axel Zeitler

  57. Plasmonic apertures for THz QCL near-field imaging

    Article • September 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  58. Terahertz pulsed imaging of surface variations on pharmaceutical tablets

    Article • September 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  59. Near-infrared spectroscopy for non-destructive coating analysis calibrated by Terahertz Pulsed Imaging

    Article • September 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  60. Neural Network-based non-destructive quantification of thin coating by terahertz pulsed imaging in the frequency domain

    Article • September 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  61. In-line monitoring of coating thickness of pharmaceutical tablets during production scale film coating by Terahertz imaging

    Article • September 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  62. Tuning the Acid/Base Properties of Nanocarbons by Functionalization via Amination

    Article • Journal of the American Chemical Society, July 2010, American Chemical Society (ACS)

    Dr James McGregor, Dr Axel Zeitler

  63. The Role of Configurational Entropy in Amorphous Systems

    Article • Pharmaceutics, May 2010, MDPI AG

    Dr Axel Zeitler

  64. Active coke: Carbonaceous materials as catalysts for alkane dehydrogenation

    Article • Journal of Catalysis, February 2010, Elsevier

    Dr James McGregor, Dr Axel Zeitler

  65. A study into the effect of subtle structural details and disorder on the terahertz spectrum of crystalline benzoic acid

    Article • Physical Chemistry Chemical Physics, January 2010, Royal Society of Chemistry

    Professor Graeme Day, Dr Axel Zeitler

  66. Investigating dissolution performance critical areas on coated tablets: A case study using terahertz pulsed imaging

    Article • Journal of Pharmaceutical Sciences, January 2010, Elsevier

    Dr Axel Zeitler

  67. Monitoring the Film Coating Unit Operation and Predicting Drug Dissolution Using Terahertz Pulsed Imaging

    Article • Journal of Pharmaceutical Sciences, December 2009, Elsevier

    Dr Axel Zeitler

  68. Accurate determination of optical coefficients from chemical samples using terahertz time-domain spectroscopy and effective medium theory

    Article • Optics Letters, November 2009, Optical Society of America (OSA)

    Dr Axel Zeitler

  69. The Use of Terahertz Spectroscopy as a Sensitive Probe in Discriminating the Electronic Properties of Structurally Similar Multi-Walled Carbon Nanotubes

    Article • Advanced Materials, October 2009, Wiley

    Dr James McGregor, Dr Axel Zeitler

  70. Noninvasive 3D characterization of layered samples using terahertz pulsed imaging and infrared optical coherence tomography

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  71. Extraction of accurate optical constants in THz-TDS

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  72. Real-time in situ measurement of particle size in flowing powders by terahertz time-domain spectroscopy

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  73. Quantification of thin-film coating thickness of pharmaceutical tablets using wavelet analysis of terahertz pulsed imaging data

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler

  74. Untangling the electronic properties in highly similar multi-walled carbon nanotubes by terahertz spectroscopy

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler , Dr James McGregor

  75. Understanding the Dielectric Properties of Heat-Treated Carbon Nanofibers at Terahertz Frequencies: a New Perspective on the Catalytic Activity of Structured Carbonaceous Materials

    Article • The Journal of Physical Chemistry C, June 2009, American Chemical Society (ACS)

    Dr James McGregor, Dr Axel Zeitler

  76. Correlating thermodynamic and kinetic parameters with amorphous stability

    Article • European Journal of Pharmaceutical Sciences, June 2009, Elsevier

    Dr Axel Zeitler

  77. Testing the Sensitivity of Terahertz Spectroscopy to Changes in Molecular and Supramolecular Structure: A Study of Structurally Similar Cocrystals

    Article • Crystal Growth & Design, February 2009, American Chemical Society (ACS)

    Professor Graeme Day, Dr Axel Zeitler

  78. Three-dimensional imaging of optically opaque materials using nonionizing terahertz radiation

    Article • Journal of the Optical Society of America A, November 2008, Optical Society of America (OSA)

    Dr Axel Zeitler

  79. Using terahertz time-domain-spectroscopy to follow the kinetics and mechanism of cocrystal formation

    Article • September 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Graeme Day, Dr Axel Zeitler

  80. Modelling the effect of hydrogen positions on the lattice dynamics calculations of terahertz spectra of benzoic acid

    Article • September 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Graeme Day, Dr Axel Zeitler

  81. Probing solids through THz spectroscopy: Differentiation of chiral and racemic forms of isostructural and non-isostructural cocrystals

    Article • September 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Graeme Day, Dr Axel Zeitler

  82. Theoretical analysis of the solid-state terahertz spectrum of the high explosive RDX

    Article • Chemical Physics Letters, September 2008, Elsevier

    Dr Axel Zeitler

  83. Determination of complex refractive index of thin metal films from terahertz time-domain spectroscopy

    Article • Journal of Applied Physics, September 2008, American Institute of Physics

    Dr Axel Zeitler

  84. Understanding the catalytic activity of heat treated carbon nanofibres: Investigation of their dielectric properties at THz frequencies

    Article • September 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Axel Zeitler , Professor Swee Ching Tan, Dr James McGregor

  85. Applications of terahertz pulsed imaging to sustained-release tablet film coating quality assessment and dissolution performance

    Article • Journal of Controlled Release, April 2008, Elsevier

    Dr Axel Zeitler

  86. Pharmaceutical and Security Applications of Terahertz Spectroscopy

    Article • December 2007, Taylor & Francis

    Dr Axel Zeitler

  87. Investigating Dehydration from Compacts Using Terahertz Pulsed, Raman, and Near-Infrared Spectroscopy

    Article • Applied Spectroscopy, December 2007, SAGE Publications

    Dr Axel Zeitler , Professor Jukka Rantanen

  88. Relaxation and Crystallization of Amorphous Carbamazepine Studied by Terahertz Pulsed Spectroscopy

    Article • Journal of Pharmaceutical Sciences, October 2007, Elsevier

    Dr Axel Zeitler

  89. Solid-State Transition Mechanism in Carbamazepine Polymorphs by Time-Resolved Terahertz Spectroscopy

    Article • ChemPhysChem, September 2007, Wiley

    Dr Axel Zeitler

  90. Terahertz-Pulsed Spectroscopy and Imaging in Pharmaceutical Setting

    Article • ChemInform, July 2007, Wiley

    Dr Axel Zeitler

  91. Terahertz pulsed spectroscopy and imaging in the pharmaceutical setting - a review

    Article • Journal of Pharmacy and Pharmacology, February 2007, Wiley

    Dr Axel Zeitler

  92. The influence of various excipients on the conversion kinetics of carbamazepine polymorphs in aqueous suspension

    Article • Journal of Pharmacy and Pharmacology, February 2007, Wiley

    Dr Axel Zeitler

  93. Analysis of Coating Structures and Interfaces in Solid Oral Dosage Forms by Three Dimensional Terahertz Pulsed Imaging

    Article • Journal of Pharmaceutical Sciences, February 2007, Elsevier

    Dr Axel Zeitler

  94. Characterization of Temperature-Induced Phase Transitions in Five Polymorphic Forms of Sulfathiazole by Terahertz Pulsed Spectroscopy and Differential Scanning Calorimetry

    Article • Journal of Pharmaceutical Sciences, November 2006, Elsevier

    Dr Axel Zeitler

  95. Quantification of binary polymorphic mixtures of ranitidine hydrochloride using NIR spectroscopy

    Article • Vibrational Spectroscopy, August 2006, Elsevier

    Dr Axel Zeitler

  96. Temperature dependent terahertz pulsed spectroscopy of carbamazepine

    Article • Thermochimica Acta, October 2005, Elsevier

    Dr Axel Zeitler

  97. Using Terahertz Pulsed Spectroscopy to Quantify Pharmaceutical Polymorphism and Crystallinity

    Article • Journal of Pharmaceutical Sciences, April 2005, Elsevier

    Dr Axel Zeitler