Karlis Berzins

Karlis Berzins

Research assistant


  1. 2022
  2. Published

    Low-Frequency Raman Spectroscopy as an Avenue to Determine the Transition Temperature of β- and γ-Relaxation in Pharmaceutical Glasses

    Bērziņš, Kārlis, Fraser-Miller, S. J., Rades, Thomas & Gordon, K. C., 2022, In: Analytical Chemistry. 94, 23, p. 8241-8248

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Nondestructive Spatial Dehydration Analysis of Crystalline Hydrates in Pharmaceutical Solid Dosage Forms Using Spatially Offset Low-Frequency Raman Spectroscopy

    Bērziņš, Kārlis, Remoto, P. I. J. G., Fraser-Miller, S. J. & Gordon, K. C., 2022, In: Crystal Growth & Design. 22, 5, p. 2946–2953

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Optimization of methionine in inhalable High-dose Spray-dried amorphous composite particles using response surface Method, infrared and low frequency Raman spectroscopy

    Raj Adhikari, B., Bērziņš, Kārlis, Fraser-Miller, S. J., Cavallaro, A., Gordon, K. C. & Das, S. C., 2022, In: International Journal of Pharmaceutics. 614, 121446.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. 2021
  6. A New Frontier for Nondestructive Spatial Analysis of Pharmaceutical Solid Dosage Forms: Spatially Offset Low-Frequency Raman Spectroscopy

    Bērziņš, Kārlis, Fraser-Miller, S. J. & Gordon, K. C., 2021, In: Analytical Chemistry. 93, 8, p. 3698–3705

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Combined Effect of the Preparation Method and Compression on the Physical Stability and Dissolution Behavior of Melt-Quenched Amorphous Celecoxib

    Bērziņš, Kārlis, Fraser-Miller, S. J., Di, Rong, Liu, J., Peltonen, L., Strachan, C. J., Rades, Thomas & Gordon, K. C., 2021, In: Molecular Pharmaceutics. 18, 3, p. 1408-1418

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Investigation on Formulation Strategies to Mitigate Compression-Induced Destabilization in Supersaturated Celecoxib Amorphous Solid Dispersions

    Bērziņš, Kārlis, Fraser-Miller, S. J., Walker, G. F., Rades, Thomas & Gordon, K. C., 2021, In: Molecular Pharmaceutics. 18, 10, p. 3882–3893

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Monitoring the Isothermal Dehydration of Crystalline Hydrates Using Low-Frequency Raman Spectroscopy

    Robert, C., Fraser-Miller, S. J., Bērziņš, Kārlis, Okeyo, P. O., Rantanen, Jukka, Rades, Thomas & Gordon, K. C., 2021, In: Molecular Pharmaceutics. 18, 3, p. 1264-1276

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Pseudo-3D Subsurface Imaging of Pharmaceutical Solid Dosage Forms Using Micro-spatially Offset Low-Frequency Raman Spectroscopy

    Bērziņš, Kārlis, Fraser-Miller, S. J. & Gordon, K. C., 2021, In: Analytical Chemistry. 93, 25, p. 8986–8993

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Qualitative and quantitative vibrational spectroscopic analysis of macronutrients in breast milk

    Bērziņš, Kārlis, Harrison, S. D. L., Leong, C., Fraser-Miller, S. J., Harper, M. J., Diana, A., Gibson, R. S., Houghton, L. & Gordon, K. C., 2021, In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy. 246, 118982.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Recent advances in low-frequency Raman spectroscopy for pharmaceutical applications

    Bērziņš, Kārlis, Fraser-Miller, S. J. & Gordon, K. C., 2021, In: International Journal of Pharmaceutics. 592, 120034.

    Research output: Contribution to journalJournal articleResearchpeer-review

ID: 308436224