Karlis Berzins

Karlis Berzins

Research assistant

ORCID: 0000-0001-6545-5522

Publication year:
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1 - 25 out of 33Page size: 25
  1. 2024
  2. Published

    In Operando Analysis of Milk-Based Oral Formulations during Digestion Using Synchrotron Small-Angle X-ray Scattering Coupled to Low-Frequency Raman Spectroscopy

    Bērziņš, Kārlis, Meiland, Peter, Aljabbari, Anas Samir Mohammad & Boyd, Ben, 2024, In: Analytical Chemistry. 96, 2, p. 887-894

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. E-pub ahead of print

    In Situ Imaging of Subcutaneous Drug Delivery Systems Using Microspatially Offset Low-Frequency Raman Spectroscopy

    Bērziņš, Kārlis, Czyrski, Grzegorz Sebastian, Aljabbari, Anas Samir Mohammad, Heinz, Andrea & Boyd, Ben, 2024, (E-pub ahead of print) In: Analytical Chemistry.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. 2023
  5. Published

    An Exploration of Mineral Density, Elemental and Chemical Composition of Primary Teeth in Relation to Cord-Blood Vitamin D, Using Laboratory Analysis Techniques

    Beckett, D. M., Vaz Viegas, S., Broadbent, J. M., Wheeler, B. J., Bērziņš, Kārlis, Fraser-Miller, S. J., Gordon, K. C., Drummond, B. K., Mahoney, E. K. & Loch, C., 2023, In: Journal of Bone and Mineral Research. 38, 12, p. 1846-1855

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    Application of Low-Frequency Raman Spectroscopy to Probe Dynamics of Lipid Mesophase Transformations upon Hydration

    Krog, Lasse Skjoldborg, Kirkensgaard, Jacob Judas Kain, Foderà, Vito, Boyd, Ben & Bērziņš, Kārlis, 2023, In: Journal of Physical Chemistry B. 127, 14, p. 3223-3230

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    Comparison of Low-, Mid-, and High-Frequency Raman Spectroscopy for an In Situ Kinetic Analysis of Lipid Polymorphic Transformations

    Pasquarella, C., Bertoni, S., Passerini, N., Boyd, Ben & Bērziņš, Kārlis, 2023, In: Crystal Growth and Design. 23, 11, p. 7947–7957

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Exploring the Solid-State Landscape of Carbamazepine during Dehydration: A Low Frequency Raman Spectroscopy Perspective

    Remoto, P. I. I. I. J. G., Bērziņš, Kārlis, Fraser-Miller, S. J., Korter, T. M., Rades, Thomas, Rantanen, Jukka & Gordon, K. C., 2023, In: Pharmaceutics. 15, 5, 15 p., 1526.

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    In Situ Monitoring of Drug Precipitation from Digesting Lipid Formulations Using Low-Frequency Raman Scattering Spectroscopy

    Salim, M., Fraser-Miller, S. J., Bērziņš, Kārlis, Sutton, J. J., Gordon, K. C. & Boyd, Ben, 2023, In: Pharmaceutics. 15, 7, 13 p., 1968.

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    The Influence of Gastrointestinal Biomolecules on Solid-State Transformations in Pharmaceutical Particulates

    Aljabbari, Anas Samir Mohammad, Kihara, Shinji, Rades, Thomas, Boyd, Ben & Bērziņš, Kārlis, 2023, In: Molecular Pharmaceutics. 20, 8, p. 4297-4306

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. 2022
  12. Published

    Elucidating the Dehydration Mechanism of Nitrofurantoin Monohydrate II Using Low-Frequency Raman Spectroscopy

    Remoto, P. J. G., Bērziņš, Kārlis, Fraser-Miller, S. J., Korter, T. M., Rades, Thomas, Rantanen, Jukka & Gordon, K. C., 2022, In: Crystal Growth and Design. 22, 4, p. 2733-2741

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    Evaluating Spatially Offset Low-Frequency Anti-Stokes Raman Spectroscopy (SOLFARS) for Detecting Subsurface Composition below an Emissive Layer: A Proof of Principle Study Using a Model Bilayer System

    Bērziņš, Kārlis, Mapley, J. I., Gordon, K. C. & Fraser-Miller, S. J., 2022, In: Molecular Pharmaceutics. 19, 11, p. 4311–4319

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. 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 journal › Journal article › Research › peer-review

  15. 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 journal › Journal article › Research › peer-review

  16. 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 journal › Journal article › Research › peer-review

  17. 2021

  18. 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 journal › Journal article › Research › peer-review

  19. 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 journal › Journal article › Research › peer-review

  20. 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 journal › Journal article › Research › peer-review

  21. 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 journal › Journal article › Research › peer-review

  22. 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 journal › Journal article › Research › peer-review

  23. 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 journal › Journal article › Research › peer-review

  24. 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 journal › Journal article › Research › peer-review

  25. 2020

  26. Co-Amorphization of Kanamycin with Amino Acids Improves Aerosolization

    Adhikari, B. R., Bērziņš, Kārlis, Fraser-Miller, S. J., Gordon, K. C. & Das, S. C., 2020, In: Pharmaceutics. 12, 8, 715.

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Low-frequency raman scattering spectroscopy as an accessible approach to understand drug solubilization in milk-based formulations during digestion

    Salim, M., Fraser-Miller, S. J., Bērziņš, Kārlis, Sutton, J. J., Ramirez, G., Clulow, A. J., Hawley, A., Beilles, S., Gordon, K. C. & Boyd, B. J., 2020, In: Molecular Pharmaceutics. 17, 3, p. 885–899

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. Low-wavenumber Raman spectral database of pharmaceutical excipients

    Bērziņš, Kārlis, Sales, R. E., Barnsley, J. E., Walker, G., Fraser-Miller, S. J. & Gordon, K. C., 2020, In: Vibrational Spectroscopy. 107, 103021.

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Solving the Computational Puzzle: Toward a Pragmatic Pathway for Modeling Low-Energy Vibrational Modes of Pharmaceutical Crystals

    Bērziņš, Kārlis, Sutton, J. J., Fraser-Miller, S. J., Rades, Thomas, Korter, T. M. & Gordon, K. C., 2020, In: Crystal Growth & Design. 20, 10, p. 6947-6955

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. 2019

  31. Application of Low-Frequency Raman Scattering Spectroscopy to Probe in Situ Drug Solubilization in Milk during Digestion

    Salim, M., Fraser-Miller, S. J., Sutton, J. J., Bērziņš, Kārlis, Hawley, A., Clulow, A. J., Beilles, S., Gordon, K. C. & Boyd, Ben, 2019, In: Journal of Physical Chemistry Letters. 10, 9, p. 2258–2263

    Research output: Contribution to journal › Journal article › Research › peer-review

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