1
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Chimenti RV, Lehman-Chong AM, Sepcic AM, Engelhardt JD, Carriere JT, Bensley KA, Markashevsky A, Tu J, Stanzione JF, Lofland SE. Method for determining resin cure kinetics with low-frequency Raman spectroscopy. Analyst 2023; 148:5698-5706. [PMID: 37823883 DOI: 10.1039/d3an01099f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Characterizing resin extent of cure kinetics is critical to understanding the structure-property-processing relationships of polymers. The disorder band present in the low-frequency region of the Raman spectrum is directly related to conformational entropy and the modulus of amorphous materials, both of which change as the resin polymerizes. Normalizing the disorder band to its shoulder (∼85 cm-1) provides structural conversion kinetics, which we can directly correlate to chemical conversion kinetics for methacrylate and epoxy-amine based resin systems. In addition to fitting both the structural and chemical conversion data to a phenomenological kinetic rate equation, we also demonstrate a relationship between the chemical and structural kinetics which appears to relate to the softness of the material. Lastly, we use the method to investigate a methacrylate/epoxy interpenetrating polymer network resin system. We find that the structural and chemical conversions occur simultaneously during the formation of the primary (methacrylate) network, but there is a lag between the two during the formation of the secondary (epoxy-amine) network.
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Affiliation(s)
- Robert V Chimenti
- Department of Physics & Astronomy, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA.
- Advanced Materials & Manufacturing Institute (AMMI), Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA
| | - Alexandra M Lehman-Chong
- Advanced Materials & Manufacturing Institute (AMMI), Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA
- Department of Chemical Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA
| | - Alyssa M Sepcic
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA
| | - Jamison D Engelhardt
- Department of Physics & Astronomy, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA.
- Advanced Materials & Manufacturing Institute (AMMI), Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA
| | - James T Carriere
- Coherent Inc., 850 East Duarte Road, Monrovia, California 91016, USA
| | - Kayla A Bensley
- Department of Physics & Astronomy, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA.
| | - Adam Markashevsky
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA
| | - Jianwei Tu
- Advanced Materials & Manufacturing Institute (AMMI), Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA
| | - Joseph F Stanzione
- Advanced Materials & Manufacturing Institute (AMMI), Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA
- Department of Chemical Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA
| | - Samuel E Lofland
- Department of Physics & Astronomy, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA.
- Advanced Materials & Manufacturing Institute (AMMI), Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA
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2
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Younis MK, Khalil IA, Younis NS, Fakhr Eldeen RR, Abdelnaby RM, Aldeeb RA, Taha AA, Hassan DH. Aceclofenac/Citronellol Oil Nanoemulsion Repurposing Study: Formulation, In Vitro Characterization, and In Silico Evaluation of Their Antiproliferative and Pro-Apoptotic Activity against Melanoma Cell Line. Biomedicines 2023; 11:2531. [PMID: 37760972 PMCID: PMC10525854 DOI: 10.3390/biomedicines11092531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Aceclofenac (ACF) is a widely used non-steroidal anti-inflammatory drug (NSAID) known for its effectiveness in treating pain and inflammation. Recent studies have demonstrated that ACF possesses antiproliferative properties, inhibiting the growth of cancer cells in various cancer cell lines. Citronellol, a monoterpenoid alcohol found in essential oils, exhibits antioxidant properties and activities such as inhibiting cell growth and acetylcholinesterase inhibition. In this study, the objective was to formulate and evaluate an aceclofenac/citronellol oil nanoemulsion for its antiproliferative effects on melanoma. The optimal concentrations of citronellol oil, Tween 80, and Transcutol HP were determined using a pseudoternary phase diagram. The formulated nanoemulsions were characterized for droplet size, zeta potential, thermophysical stability, and in vitro release. The selected formula (F1) consisted of citronellol oil (1 gm%), Tween 80 (4 gm%), and Transcutol HP (1 gm%). F1 exhibited a spherical appearance with high drug content, small droplet size, and acceptable negative zeta potential. The amorphous state of the drug in the nanoemulsion was confirmed by Differential Scanning Calorimetry, while FTIR analysis indicated its homogenous solubility. The nanoemulsion showed significant antiproliferative activity, with a lower IC50 value compared to aceclofenac or citronellol alone. Flow cytometric analysis revealed cell cycle arrest and increased apoptosis induced by the nanoemulsion. In silico studies provided insights into the molecular mechanism underlying the observed antitumor activity. In conclusion, the developed aceclofenac/citronellol oil nanoemulsion exhibited potent cytotoxicity and pro-apoptotic effects, suggesting its potential as a repurposed antiproliferative agent for melanoma treatment. In a future plan, further animal model research for validation is suggested.
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Affiliation(s)
- Mona K. Younis
- Department of Pharmaceutics, College of Pharmaceutical Science and Drug Manufacturing, Misr University for Science and Technology, 6th of October City 12566, Egypt; (I.A.K.); (R.A.A.); (A.A.T.); (D.H.H.)
| | - Islam A. Khalil
- Department of Pharmaceutics, College of Pharmaceutical Science and Drug Manufacturing, Misr University for Science and Technology, 6th of October City 12566, Egypt; (I.A.K.); (R.A.A.); (A.A.T.); (D.H.H.)
| | - Nancy S. Younis
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
- Zagazig University Hospitals, Zagazig 44519, Egypt
| | - Rasha R. Fakhr Eldeen
- Department of Biochemistry, College of Pharmaceutical Science and Drug Manufacturing, Misr University for Science and Technology, 6th of October City 12566, Egypt;
| | - Rana M. Abdelnaby
- Department Pharmaceutical Chemistry, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Reem A. Aldeeb
- Department of Pharmaceutics, College of Pharmaceutical Science and Drug Manufacturing, Misr University for Science and Technology, 6th of October City 12566, Egypt; (I.A.K.); (R.A.A.); (A.A.T.); (D.H.H.)
| | - Amal A. Taha
- Department of Pharmaceutics, College of Pharmaceutical Science and Drug Manufacturing, Misr University for Science and Technology, 6th of October City 12566, Egypt; (I.A.K.); (R.A.A.); (A.A.T.); (D.H.H.)
| | - Doaa H. Hassan
- Department of Pharmaceutics, College of Pharmaceutical Science and Drug Manufacturing, Misr University for Science and Technology, 6th of October City 12566, Egypt; (I.A.K.); (R.A.A.); (A.A.T.); (D.H.H.)
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3
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Salim M, Fraser-Miller SJ, Bērziņš K, Sutton JJ, Gordon KC, Boyd BJ. In Situ Monitoring of Drug Precipitation from Digesting Lipid Formulations Using Low-Frequency Raman Scattering Spectroscopy. Pharmaceutics 2023; 15:1968. [PMID: 37514154 PMCID: PMC10383805 DOI: 10.3390/pharmaceutics15071968] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/09/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Low-frequency Raman spectroscopy (LFRS) is a valuable tool to detect the solid state of amorphous and crystalline drugs in solid dosage forms and the transformation of drugs between different polymorphic forms. It has also been applied to track the solubilisation of solid drugs as suspensions in milk and infant formula during in vitro digestion. This study reports the use of LFRS as an approach to probe drug precipitation from a lipid-based drug delivery system (medium-chain self-nanoemulsifying drug delivery system, MC-SNEDDS) during in vitro digestion. Upon lipolysis of the digestible components in MC-SNEDDS containing fenofibrate as a model drug, sharp phonon peaks appeared at the low-frequency Raman spectral region (<200 cm-1), indicating the precipitation of fenofibrate in a crystalline form from the formulation. Two multivariate data analysis approaches (principal component analysis and partial least squares discriminant analysis) and one univariate analysis approach (band ratios) were explored to track these spectral changes over time. The low-frequency Raman data produces results in good agreement with in situ small angle X-ray scattering (SAXS) measurements with all data analysis approaches used, whereas the mid-frequency Raman requires the use of PLS-DA to gain similar results. This suggests that LFRS can be used as a complementary, and potentially more accessible, technique to SAXS to determine the kinetics of drug precipitation from lipid-based formulations.
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Affiliation(s)
- Malinda Salim
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Sara J Fraser-Miller
- Te Whai Ao-Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
| | - Kārlis Bērziņš
- Te Whai Ao-Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Joshua J Sutton
- Te Whai Ao-Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
| | - Keith C Gordon
- Te Whai Ao-Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
| | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
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4
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Guinet Y, Paccou L, Hédoux A. Low-Frequency Raman Spectroscopy: An Exceptional Tool for Exploring Metastability Driven States Induced by Dehydration. Pharmaceutics 2023; 15:1955. [PMID: 37514141 PMCID: PMC10383856 DOI: 10.3390/pharmaceutics15071955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
The use of low-frequency Raman spectroscopy (LFRS; ω < 150 cm-1) is booming in the pharmaceutical industry. Specific processing of spectra is required to use the wealth of information contained in this spectral region. Spectra processing and the use of LFRS for analyzing phase transformations in molecular materials are detailed herein from investigations on the devitrification of ibuprofen. LFRS was used to analyze the dehydration mechanism of two hydrates (theophylline and caffeine) of the xanthine family. Two mechanisms of solid-state transformation in theophylline were determined depending on the relative humidity (RH) and temperature. At room temperature and 1% RH, dehydration is driven by the diffusion mechanism, while under high RH (>30%), kinetic laws are typical of nucleation and growth mechanism. By increasing the RH, various metastability driven crystalline forms were obtained mimicking successive intermediate states between hydrate form and anhydrous form achieved under high RH. In contrast, the dehydration kinetics of caffeine hydrate under various RH levels can be described by only one master curve corresponding to a nucleation mechanism. Various metastability driven states were achieved depending on the RH, which can be described as intermediate between forms I and II of anhydrous caffeine.
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Affiliation(s)
- Yannick Guinet
- UMR 8207-UMET-Unité Matériaux et Transformations, Univ. Lille, CNRS, INRAE, Centrale Lille, F-59000 Lille, France
| | - Laurent Paccou
- UMR 8207-UMET-Unité Matériaux et Transformations, Univ. Lille, CNRS, INRAE, Centrale Lille, F-59000 Lille, France
| | - Alain Hédoux
- UMR 8207-UMET-Unité Matériaux et Transformations, Univ. Lille, CNRS, INRAE, Centrale Lille, F-59000 Lille, France
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5
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Remoto PIJG, Bērziņš K, Fraser-Miller SJ, Korter TM, Rades T, Rantanen J, Gordon KC. Exploring the Solid-State Landscape of Carbamazepine during Dehydration: A Low Frequency Raman Spectroscopy Perspective. Pharmaceutics 2023; 15:pharmaceutics15051526. [PMID: 37242768 DOI: 10.3390/pharmaceutics15051526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
The solid-state landscape of carbamazepine during its dehydration was explored using Raman spectroscopy in the low- (-300 to -15, 15 to 300) and mid- (300 to 1800 cm-1) frequency spectral regions. Carbamazepine dihydrate and forms I, III, and IV were also characterized using density functional theory with periodic boundary conditions and showed good agreement with experimental Raman spectra with mean average deviations less than 10 cm-1. The dehydration of carbamazepine dihydrate was examined under different temperatures (40, 45, 50, 55, and 60 °C). Principal component analysis and multivariate curve resolution were used to explore the transformation pathways of different solid-state forms during the dehydration of carbamazepine dihydrate. The low-frequency Raman domain was able to detect the rapid growth and subsequent decline of carbamazepine form IV, which was not as effectively observed by mid-frequency Raman spectroscopy. These results showcased the potential benefits of low-frequency Raman spectroscopy for pharmaceutical process monitoring and control.
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Affiliation(s)
- Peter Iii J G Remoto
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
| | - Kārlis Bērziņš
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
| | - Sara J Fraser-Miller
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
| | - Timothy M Korter
- Department of Chemistry, Center for Science and Technology, Syracuse University, Syracuse, NY 13244, USA
| | - Thomas Rades
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Jukka Rantanen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Keith C Gordon
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
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6
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Nakajima S, Kuroki S, Ikehata A. Selective detection of starch in banana fruit with Raman spectroscopy. Food Chem 2023; 401:134166. [DOI: 10.1016/j.foodchem.2022.134166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 09/02/2022] [Accepted: 09/05/2022] [Indexed: 12/01/2022]
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7
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Be Rziņš KR, Mapley JI, Gordon KC, Fraser-Miller SJ. 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. Mol Pharm 2022; 19:4311-4319. [PMID: 36170046 DOI: 10.1021/acs.molpharmaceut.2c00656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This work explores the potential use of spatially offset low-frequency anti-Stokes Raman spectroscopy (SOLFARS) to detect subsurface composition below an emissive surface. A range of bilayer tablets were used to evaluate this approach. Bilayer tablets differed in both the underlying layer composition (active pharmaceutical ingredient to excipient ratio, celecoxib: α-lactose monohydrate) and the upper layer thickness of the fluorescent coating (polyvinylpyrrolidone mixture with sunset yellow FCF dye). Two low- (<300 cm-1) plus mid- (300 to 1800 cm-1) frequency Raman instrumental setups, with lateral displacements for spatial analysis of solid dosage forms, using different excitation wavelengths were explored. The 532 nm system was used to illustrate how the low-frequency anti-Stokes Raman approach works with samples exhibiting extreme fluorescence/background emission interference, and the 785 nm system was used to demonstrate the performance when less extreme fluorescence/emission is present. Qualitative and quantitative chemometric analyses were performed to evaluate the performance of individual spectral domains and their combinations for the determination of the composition of the subsurface layer as well as the coating layer thickness. Overall, the commonly used midfrequency region (300-1800 cm-1) proved superior when using 785 nm incident laser for quantifying the coating thickness (amorphous materials), whereas a combined Stokes and anti-Stokes low-frequency region was found to be superior for quantifying underlying crystalline materials. When exploring individual spectral regions for subsurface composition using spatially offset measurements, the anti-Stokes LFR spectral window performed best. The anti-Stokes low-frequency range also demonstrated an advantage for models composed of data exhibiting high levels of fluorescence (e.g., data collected using 532 nm incident laser), as the Stokes scattering was masked by fluorescence. Transmission measurements were also explored for comparison and showed the best applicability for both upper and lower layer analysis, attributed to the inherently larger bulk sampling volume of this setup. From a practical perspective, these results highlight the potential adjustments that can be made to already existing (in-line) Raman setups to facilitate similar analysis in pharmaceutical industry-based settings.
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Affiliation(s)
- Ka Rlis Be Rziņš
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand.,Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 1165, Denmark
| | - Joseph I Mapley
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
| | - Keith C Gordon
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
| | - Sara J Fraser-Miller
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
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8
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Shen P, Zhang C, Hu E, Pang Z, Gao Y, Qian S, Zhang J, Wei Y, Heng W. Gelation switch of polyamorphic indomethacin depending on the thermal procedure. Eur J Pharm Biopharm 2022; 177:249-259. [PMID: 35870760 DOI: 10.1016/j.ejpb.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 11/29/2022]
Abstract
Amorphous indomethacin (IMC) prepared under different thermal procedures via melt quenching method showed significantly different dissolution behaviors. This study aims to investigate the influence of thermal procedures on the formation of IMC polyamorphism and to explore the mechanism for their different dissolution behaviors. Amorphous IMC samples were prepared by melting crystalline IMC under a series of temperatures (160-195 °C), respectively, followed by quenching in liquid nitrogen. Samples obtained under 170 °C exhibited bi-halo shapes at ∼15° and ∼26° (2θ), while the ones above 175 °C showed a single halo at ∼21° (2θ), suggesting amorphous IMC prepared under different thermal procedures probably have different local molecular arrangements. In comparison to crystalline IMC, amorphous IMC obtained under 170 °C showed significantly higher dissolution profiles with good dispersibility in aqueous medium, however, all amorphous IMC samples prepared above 175 °C demonstrated much lower dissolution with significant gelation, which seemed like a gelation switch existed for polyamorphic IMC when the preparation temperature was between 170 and 175 °C. Based on physicochemical characterizations, amorphous IMC prepared under 170 °C had higher surface free energy, more surficial hydrophilic groups and better wettability than the ones made above 175 °C. Molecular dynamics simulations revealed that the amorphous samples prepared below 170 °C had similar binding energy values in the range of 310.045-325.479 kcal/mol, while those prepared above 175 °C were significantly lower within 212.193-235.073 kcal/mol. Such binding energy difference might be responsible for their different local molecular arrangements after different thermal procedures. The current study deeply reminds us that the thermal procedure of preparation methods may significantly affect the physicochemical properties of amorphous materials, which should be paid special attention to the polymorphic selection during pharmaceutical development.
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Affiliation(s)
- Peiya Shen
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Chunfeng Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Enshi Hu
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Weili Heng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
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9
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Koskela J, Sutton JJ, Lipiäinen T, Gordon KC, Strachan CJ, Fraser-Miller SJ. Low- versus Mid-frequency Raman Spectroscopy for in Situ Analysis of Crystallization in Slurries. Mol Pharm 2022; 19:2316-2326. [PMID: 35503753 PMCID: PMC9257757 DOI: 10.1021/acs.molpharmaceut.2c00126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Slurry studies are
useful for exhaustive polymorph and solid-state
stability screening of drug compounds. Raman spectroscopy is convenient
for monitoring crystallization in such slurries, as the measurements
can be performed in situ even in aqueous environments.
While the mid-frequency region (400–4000 cm–1) is dominated by intramolecular vibrations and has traditionally
been used for such studies, the low-frequency spectral region (<200
cm–1) probes solid-state related lattice vibrations
and is potentially more valuable for understanding subtle and/or complex
crystallization behavior. The aim of the study was to investigate
low-frequency Raman spectroscopy for in situ monitoring
of crystallization of an amorphous pharmaceutical in slurries for
the first time and directly compare the results with those simultaneously
obtained with mid-frequency Raman spectroscopy. Amorphous indomethacin
(IND) slurries were prepared at pH 1.2 and continuously monitored in situ at 5 and 25 °C with both low- and mid-frequency
Raman spectroscopy. At 25 °C, both spectral regions profiled
amorphous IND in slurries as converting directly from the amorphous
form toward the α crystalline form. In contrast, at 5 °C,
principal component analysis revealed a divergence in the detected
conversion profiles: the mid-frequency Raman suggested a direct conversion
to the α crystalline form, but the low-frequency region showed
additional transition points. These were attributed to the appearance
of minor amounts of the ε-form. The additional solid-state sensitivity
of the low-frequency region was attributed to the better signal-to-noise
ratio and more consistent spectra in this region. Finally, the low-frequency
Raman spectrum of the ε-form of IND is reported for the first
time.
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Affiliation(s)
- Jaana Koskela
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland
| | - Joshua J Sutton
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
| | - Tiina Lipiäinen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland
| | - Keith C Gordon
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
| | - Clare J Strachan
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland
| | - Sara J Fraser-Miller
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
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10
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Irvin KS, Potgieter JH, Liauw C, Sparkes R, Potgieter‐Vermaak S. The quantification of di‐octyl terephthalate and calcium carbonate in polyvinyl chloride using Fourier transform‐infrared and Raman spectroscopy. J Appl Polym Sci 2022. [DOI: 10.1002/app.52372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kate S. Irvin
- Department of Natural Sciences Manchester Metropolitan University Manchester UK
| | - Johannes H. Potgieter
- Department of Natural Sciences Manchester Metropolitan University Manchester UK
- School of Chemical and Metallurgical Engineering University of the Witwatersrand Johannesburg South Africa
| | - Christopher Liauw
- School of Healthcare Sciences Manchester Metropolitan University Manchester UK
| | - Robert Sparkes
- Department of Natural Sciences Manchester Metropolitan University Manchester UK
| | - Sanja Potgieter‐Vermaak
- Department of Natural Sciences Manchester Metropolitan University Manchester UK
- Molecular Science Institute, School of Chemistry University of the Witwatersrand Johannesburg South Africa
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11
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Park H, Kim JS, Hong S, Ha ES, Nie H, Zhou QT, Kim MS. Tableting process-induced solid-state polymorphic transition. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2022. [DOI: 10.1007/s40005-021-00556-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Inoue M, Hisada H, Takatori K, Koide T, Fukami T, Roy A, Carriere J. Solid-State Analysis of Alpha-Cyclodextrin Inclusion Complexes Using Low-Frequency Raman Spectroscopy. Anal Chem 2021; 93:704-708. [PMID: 33284586 DOI: 10.1021/acs.analchem.0c03854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A rapid and nondestructive analytical technique is critical for the analysis of cyclodextrin inclusion complexes in solid dosage forms. This study proposed a newly developed low-frequency Raman spectroscopy as a candidate technique for the analysis of cyclodextrin inclusion complexes. In this study, we selected a typical series of five crystalline cyclodextrin inclusion complexes and reported the usefulness of Raman spectroscopy for analyzing these inclusion complexes. Some inclusion complexes clearly differed from the raw materials in conventional Raman spectra. In another case, though specific differences were not observed between inclusion complexes and raw materials in conventional Raman spectra, clear differences were observed in low-frequency Raman spectra. Moreover, no characteristic differences between inclusion complexes consisting of different guest molecules were observed in conventional Raman spectra. The characteristic differences were observed only in low-frequency Raman spectra. Therefore, low-frequency Raman spectroscopy is a useful technique for solid-state analysis of crystalline inclusion complexes.
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Affiliation(s)
- Motoki Inoue
- Meiji Pharmaceutical University, 2-522-1, Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Hiroshi Hisada
- Meiji Pharmaceutical University, 2-522-1, Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Kazuhiko Takatori
- Meiji Pharmaceutical University, 2-522-1, Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Tatsuo Koide
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Toshiro Fukami
- Meiji Pharmaceutical University, 2-522-1, Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Anjan Roy
- Coherent Inc., 850 East, Duarte Road, Monrovia, California 91016, United States
| | - James Carriere
- Coherent Inc., 850 East, Duarte Road, Monrovia, California 91016, United States
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13
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Robert C, Fraser-Miller SJ, Be Rziņš KR, Okeyo PO, Rantanen J, Rades T, Gordon KC. Monitoring the Isothermal Dehydration of Crystalline Hydrates Using Low-Frequency Raman Spectroscopy. Mol Pharm 2021; 18:1264-1276. [PMID: 33406363 DOI: 10.1021/acs.molpharmaceut.0c01126] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Detection of the solid-state forms of pharmaceutical compounds is important from the drug performance point of view. Low-frequency Raman (LFR) spectroscopy has been demonstrated to be very sensitive in detecting the different solid-state forms of pharmaceutically relevant compounds. The potential of LFR spectroscopy to probe the in situ isothermal dehydration was studied using piroxicam monohydrate (PXM) and theophylline monohydrate (TPMH) as the model drugs. The dehydration of PXM and TPMH at four different temperatures (95, 100, 105, and 110 °C and 50, 60, 70, and 80 °C, respectively) was monitored in both the low- (20-300 cm-1) and mid-frequency (335-1800 cm-1) regions of the Raman spectra. Principal component analysis and multivariate curve resolution were applied for the analysis of the Raman data. Spectral differences observed in both regions highlighted the formation of specific anhydrous forms of piroxicam and theophylline from their respective monohydrates. The formation of the anhydrous forms was detected on different timescales (approx. 2 min) between the low and mid-frequency Raman regions. This finding highlights the differing nature of the vibrations being detected between these two spectral regions. Computational simulations performed were also in agreement with the experimental results, and allowed elucidating the origin of different spectral features.
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Affiliation(s)
- Chima Robert
- Dodd Walls Centre for Photonics and Quantum Technologies, University of Otago, 9016 Dunedin, New Zealand
| | - Sara J Fraser-Miller
- Dodd Walls Centre for Photonics and Quantum Technologies, University of Otago, 9016 Dunedin, New Zealand
| | - Ka Rlis Be Rziņš
- Dodd Walls Centre for Photonics and Quantum Technologies, University of Otago, 9016 Dunedin, New Zealand
| | - Peter O Okeyo
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.,The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Ørsted Plads, 2800 Kgs Lyngby, Denmark
| | - Jukka Rantanen
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Thomas Rades
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Keith C Gordon
- Dodd Walls Centre for Photonics and Quantum Technologies, University of Otago, 9016 Dunedin, New Zealand
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14
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Bērziņš K, Fraser-Miller SJ, Gordon KC. Recent advances in low-frequency Raman spectroscopy for pharmaceutical applications. Int J Pharm 2021; 592:120034. [DOI: 10.1016/j.ijpharm.2020.120034] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 10/23/2022]
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15
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da Costa NF, Fernandes AI, Pinto JF. Measurement of the amorphous fraction of olanzapine incorporated in a co-amorphous formulation. Int J Pharm 2020; 588:119716. [DOI: 10.1016/j.ijpharm.2020.119716] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 07/14/2020] [Accepted: 07/28/2020] [Indexed: 10/23/2022]
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16
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Ouiyangkul P, Tantishaiyakul V, Hirun N. Exploring potential coformers for oxyresveratrol using principal component analysis. Int J Pharm 2020; 587:119630. [DOI: 10.1016/j.ijpharm.2020.119630] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/25/2020] [Accepted: 07/06/2020] [Indexed: 01/27/2023]
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17
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Salim M, Fraser-Miller SJ, Be Rziņš KR, Sutton JJ, Ramirez G, Clulow AJ, Hawley A, Beilles S, Gordon KC, Boyd BJ. Low-Frequency Raman Scattering Spectroscopy as an Accessible Approach to Understand Drug Solubilization in Milk-Based Formulations during Digestion. Mol Pharm 2020; 17:885-899. [PMID: 32011151 PMCID: PMC7054896 DOI: 10.1021/acs.molpharmaceut.9b01149] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Techniques enabling in situ monitoring of drug solubilization and changes in the solid-state of the drug during the digestion of milk and milk-based formulations are valuable for predicting the effectiveness of such formulations in improving the oral bioavailability of poorly water-soluble drugs. We have recently reported the use of low-frequency Raman scattering spectroscopy (region of analysis <200 cm-1) as an analytical approach to probe solubilization of drugs during digestion in milk using ferroquine (SSR97193) as the model compound. This study investigates the wider utilization of this technique to probe the solubilization behavior of other poorly water-soluble drugs (halofantrine, lumefantrine, and clofazimine) in not only milk but also infant formula in the absence or presence of bile salts during in vitro digestion. Multivariate analysis was used to interpret changes to the spectra related to the drug as a function of digestion time, through tracking changes in the principal component (PC) values characteristic to the drug signals. Characteristic low-frequency Raman bands for all of the drugs were evident after dispersing the solid drugs in suspension form in milk and infant formula. The drugs were generally solubilized during the digestion of the formulations as observed previously for ferroquine and correlated with behavior determined using small-angle X-ray scattering (SAXS). A greater extent of drug solubilization was also generally observed in the infant formula compared to milk. However, in the case of the drug clofazimine, the correlation between low-frequency Raman scattering and SAXS was not clear, which may arise due to background interference from clofazimine being an intense red dye, which highlights a potential limitation of this new approach. Overall, the in situ monitoring of drug solubilization in milk and milk-based formulations during digestion can be achieved using low-frequency Raman scattering spectroscopy, and the information obtained from studying this spectral region can provide better insights into drug solubilization compared to the mid-frequency Raman region.
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Affiliation(s)
- Malinda Salim
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Sara J Fraser-Miller
- Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
| | - Ka Rlis Be Rziņš
- Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
| | - Joshua J Sutton
- Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
| | - Gisela Ramirez
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Andrew J Clulow
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Adrian Hawley
- SAXS/WAXS Beamline, Australian Synchrotron, ANSTO, 800 Blackburn Rd, Clayton, Victoria 3169, Australia
| | | | - Keith C Gordon
- Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
| | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, Victoria 3052, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, Victoria 3052, Australia
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18
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Hisada H, Okayama A, Hoshino T, Carriere J, Koide T, Yamamoto Y, Fukami T. Determining the Distribution of Active Pharmaceutical Ingredients in Combination Tablets Using Near IR and Low-Frequency Raman Spectroscopy Imaging. Chem Pharm Bull (Tokyo) 2020; 68:155-160. [DOI: 10.1248/cpb.c19-00791] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hiroshi Hisada
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University
| | - Akira Okayama
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University
| | - Takuya Hoshino
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University
| | | | - Tatsuo Koide
- Division of Drugs, National Institute of Health Sciences
| | | | - Toshiro Fukami
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University
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19
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In situ monitoring of the crystalline state of active pharmaceutical ingredients during high-shear wet granulation using a low-frequency Raman probe. Eur J Pharm Biopharm 2019; 147:1-9. [PMID: 31841690 DOI: 10.1016/j.ejpb.2019.12.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 12/08/2019] [Accepted: 12/08/2019] [Indexed: 11/21/2022]
Abstract
Optimization of manufacturing processes based on scientific evidence is important in the quality control of active pharmaceutical ingredients (APIs) and drug products, particularly when crystal forms change during production, which could affect subsequent drug performance. In this study, we verified crystalline states using various crystal faces and excipients during high-shear wet granulation based on non-contact low-frequency (LF) Raman probe monitoring. Four model drugs [indomethacin (IND), acetaminophen (APAP), theophylline (TP), and caffeine (CAF) polymorphs and cocrystals] were mixed with microcrystalline cellulose and hydroxypropyl cellulose with the addition of water over time. The LF Raman probe showed comparatively high sensitivity in monitoring 5-20% APAP and IND in a wet mass. Notably, as observed from the characteristic LF Raman peak shifts, form I TP and CAF and their cocrystals were more susceptible to transformation to the monohydrate form than form II. This method was also shown to be applicable in monitoring a commercial formulation of eight excipients and revealed crystalline transformations after 15 min of mixing. Therefore, probe-type LF Raman spectroscopy can be successfully employed to distinguish and monitor the crystalline state of APIs in real time during high-shear wet granulation, in which there is a risk of crystal transformation.
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20
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Inoue M, Osada T, Hisada H, Koide T, Fukami T, Roy A, Carriere J, Heyler R. Solid-State Quantification of Cocrystals in Pharmaceutical Tablets Using Transmission Low-Frequency Raman Spectroscopy. Anal Chem 2019; 91:13427-13432. [PMID: 31565923 DOI: 10.1021/acs.analchem.9b01895] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
To enable the continuous production of cocrystal-containing pharmaceutical tablets, guaranteeing the cocrystal content of the final pharmaceutical tablets in the solid state is critical. This study demonstrates the quantification of caffeine-glutaric acid cocrystals in model tablets using transmission low-frequency Raman spectroscopy. Although distinguishing between cocrystals and raw materials using conventional Raman spectroscopy is difficult, the use of low-frequency Raman spectroscopy enables the discrimination of cocrystals and raw materials. Low-frequency Raman spectra were analyzed by the partial least-squares method (PLS) to obtain the predicted contents in the model tablets. To evaluate the quantitative ability of this method, the root means square error of cross-validation (RMSECV) was determined by comparing the actual concentration and predicted content with a calibration curve. For cocrystal-containing tablets, the quantitative ability of the transmission mode (RMSECV = 2.06- 3.17) was 13.4-31.4% higher than that of the backscattering mode (RMSECV= 2.37- 3.91). The coexistence of raw crystalline materials did not affect the quantitative ability for cocrystals.
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Affiliation(s)
- Motoki Inoue
- Department of Molecular Pharmaceutics , Meiji Pharmaceutical University , 2-522-1, Noshio , Kiyose, Tokyo 204-8588 , Japan
| | - Takumi Osada
- Department of Molecular Pharmaceutics , Meiji Pharmaceutical University , 2-522-1, Noshio , Kiyose, Tokyo 204-8588 , Japan
| | - Hiroshi Hisada
- Department of Molecular Pharmaceutics , Meiji Pharmaceutical University , 2-522-1, Noshio , Kiyose, Tokyo 204-8588 , Japan
| | - Tatsuo Koide
- Division of Drugs , National Institute of Health Sciences , 3-25-26, Tonomachi , Kawasaki-ku, Kawasaki , Kanagawa 210-9501 , Japan
| | - Toshiro Fukami
- Department of Molecular Pharmaceutics , Meiji Pharmaceutical University , 2-522-1, Noshio , Kiyose, Tokyo 204-8588 , Japan
| | - Anjan Roy
- Coherent Inc. , 850 East, Duarte Road , Monrovia , California 91016 , United States
| | - James Carriere
- Coherent Inc. , 850 East, Duarte Road , Monrovia , California 91016 , United States
| | - Randy Heyler
- Coherent Inc. , 850 East, Duarte Road , Monrovia , California 91016 , United States
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21
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Bordos E, Islam MT, Florence AJ, Halbert GW, Robertson J. Use of Terahertz-Raman Spectroscopy to Determine Solubility of the Crystalline Active Pharmaceutical Ingredient in Polymeric Matrices during Hot Melt Extrusion. Mol Pharm 2019; 16:4361-4371. [PMID: 31436094 PMCID: PMC6785800 DOI: 10.1021/acs.molpharmaceut.9b00703] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/14/2019] [Accepted: 08/22/2019] [Indexed: 11/29/2022]
Abstract
Polymer-based amorphous solid dispersions (ASDs) comprise one of the most promising formulation strategies devised to improve the oral bioavailability of poorly water-soluble drugs. Exploitation of such systems in marketed products has been limited because of poor understanding of physical stability. The internal disordered structure and increased free energy provide a thermodynamic driving force for phase separation and recrystallization, which can compromise therapeutic efficacy and limit product shelf life. A primary concern in the development of stable ASDs is the solubility of the drug in the polymeric carrier, but there is a scarcity of reliable analytical techniques for its determination. In this work, terahertz (THz) Raman spectroscopy was introduced as a novel empirical approach to determine the saturated solubility of crystalline active pharmaceutical ingredient (API) in polymeric matrices directly during hot melt extrusion. The solubility of a model compound, paracetamol, in two polymer systems, Affinisol 15LV (HPMC) and Plasdone S630 (copovidone), was determined by monitoring the API structural phase transitions from crystalline to amorphous as an excess of crystalline drug dissolved in the polymeric matrix. THz-Raman results enabled construction of solubility phase diagrams and highlighted significant differences in the solubilization capacity of the two polymer systems. The maximum stable API-load was 20 wt % for Affinisol 15LV and 40 wt % for Plasdone S630. Differential scanning calorimetry and XRPD studies corroborated these results. This approach has demonstrated a novel capability to provide real-time API-polymer phase equilibria data in a manufacturing relevant environment and promising potential to predict solid-state solubility and physical stability of ASDs.
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Affiliation(s)
- Ecaterina Bordos
- EPSRC
Future Manufacturing Research Hub, CMAC, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, U.K.
| | - Muhammad T. Islam
- EPSRC
Future Manufacturing Research Hub, CMAC, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, U.K.
| | - Alastair J. Florence
- EPSRC
Future Manufacturing Research Hub, CMAC, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, U.K.
| | - Gavin W. Halbert
- EPSRC
Future Manufacturing Research Hub, CMAC, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, U.K.
- Cancer
Research UK Formulation Unit, SIPBS, University
of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, U.K.
| | - John Robertson
- EPSRC
Future Manufacturing Research Hub, CMAC, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, U.K.
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22
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Salim M, Fraser-Miller SJ, Sutton JJ, Be̅rziņš K, Hawley A, Clulow AJ, Beilles S, Gordon KC, Boyd BJ. Application of Low-Frequency Raman Scattering Spectroscopy to Probe in Situ Drug Solubilization in Milk during Digestion. J Phys Chem Lett 2019; 10:2258-2263. [PMID: 31013099 PMCID: PMC6503463 DOI: 10.1021/acs.jpclett.9b00654] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We have recently shown that real-time monitoring of drug solubilization and changes to solid state of the drug during digestion of milk can be achieved using synchrotron small-angle X-ray scattering. A complementary laboratory-based method to explore such changes is low-frequency Raman spectroscopy, which has been increasingly used to characterize crystalline drugs and their polymorphs in powders and suspensions. This study investigates the use of this technique to monitor in situ drug solubilization in milk during the process of digestion, using a lipolysis model/flow-through configuration identical to that used previously for in situ synchrotron small-angle X-ray scattering studies. An antimalarial drug, ferroquine (SSR97193), was used as the model drug for this study. The Raman spectra were processed using multivariate analysis to extract the drug signals from the milk digestion background. The results showed disappearance of the ferroquine peaks in the low-frequency Raman region (<200 cm-1) after approximately 15-20 min of digestion when milk fat was present in the system, which indicated drug solubilization and was in good agreement with the in situ small-angle X-ray scattering measurements. This proof-of-concept study therefore suggests that low-frequency Raman spectroscopy can be used to monitor drug solubilization in a complex digesting milk medium because of the unique vibrational modes of the drug crystal lattices.
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Affiliation(s)
- Malinda Salim
- Drug
Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical
Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Sara J. Fraser-Miller
- Dodd-Walls
Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
| | - Joshua J. Sutton
- Dodd-Walls
Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
| | - Ka̅rlis Be̅rziņš
- Dodd-Walls
Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
| | - Adrian Hawley
- SAXS/WAXS
Beamline, Australian Synchrotron, ANSTO, 800 Blackburn Road, Clayton, VIC 3169, Australia
| | - Andrew J. Clulow
- Drug
Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical
Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Stéphane Beilles
- Sanofi, 371, Rue du Pr. Blayac, 34181 Montpellier cedex04, France
| | - Keith C. Gordon
- Dodd-Walls
Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand
| | - Ben J. Boyd
- Drug
Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical
Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia
- Monash
Institute of Pharmaceutical
Sciences, Monash University (Parkville Campus), 381 Royal Parade,
Parkville, VIC 3052, Australia. Tel.: +61 3 99039112. Fax: +61 3 99039583. E-mail:
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23
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Marinopoulou A, Christofilos D, Arvanitidis J, Raphaelides SN. Study of Molecular Inclusion Complex Formation of Amylose With Indomethacin. STARCH-STARKE 2019. [DOI: 10.1002/star.201800295] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anna Marinopoulou
- Central Research Laboratory for the Physical and Chemical Testing of FoodsDepartment of Food TechnologyATEI of ThessalonikiP.O. Box 141, 57400 ThessalonikiGreece
| | - Dimitrios Christofilos
- School of Chemical EngineeringAristotle University of Thessaloniki54124 ThessalonikiGreece
| | - John Arvanitidis
- Physics DepartmentAristotle University of Thessaloniki54124 ThessalonikiGreece
| | - Stylianos N. Raphaelides
- Central Research Laboratory for the Physical and Chemical Testing of FoodsDepartment of Food TechnologyATEI of ThessalonikiP.O. Box 141, 57400 ThessalonikiGreece
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24
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Bennett JW, Raglione ME, Oburn SM, MacGillivray LR, Arnold MA, Mason SE. DFT Computed Dielectric Response and THz Spectra of Organic Co-Crystals and Their Constituent Components. Molecules 2019; 24:molecules24050959. [PMID: 30857228 PMCID: PMC6429106 DOI: 10.3390/molecules24050959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/26/2019] [Accepted: 03/04/2019] [Indexed: 11/26/2022] Open
Abstract
Terahertz (THz) spectroscopy has been put forth as a non-contact, analytical probe to characterize the intermolecular interactions of biologically active molecules, specifically as a way to understand, better develop, and use active pharmaceutical ingredients. An obstacle towards fully utilizing this technique as a probe is the need to couple features in the THz regions to specific vibrational modes and interactions. One solution is to use density functional theory (DFT) methods to assign specific vibrational modes to signals in the THz region, coupling atomistic insights to spectral features. Here, we use open source planewave DFT packages that employ ultrasoft pseudopotentials to assess the infrared (IR) response of organic compounds and complex co-crystal formulations in the solid state, with and without dispersion corrections. We compare our DFT computed lattice parameters and vibrational modes to experiment and comment on how to improve the agreement between theory and modeling to allow for THz spectroscopy to be used as an analytical probe in complex biologically relevant systems.
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Affiliation(s)
- Joseph W Bennett
- Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA.
| | | | - Shalisa M Oburn
- Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA.
| | | | - Mark A Arnold
- Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA.
| | - Sara E Mason
- Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA.
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25
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An investigation into the possibility of molecular inclusion complexation of indomethacin with starch by the alkaline method. J INCL PHENOM MACRO 2019. [DOI: 10.1007/s10847-019-00886-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Ewing AV, Kazarian SG. Recent advances in the applications of vibrational spectroscopic imaging and mapping to pharmaceutical formulations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 197:10-29. [PMID: 29290567 DOI: 10.1016/j.saa.2017.12.055] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/13/2017] [Accepted: 12/19/2017] [Indexed: 06/07/2023]
Abstract
Vibrational spectroscopic imaging and mapping approaches have continued in their development and applications for the analysis of pharmaceutical formulations. Obtaining spatially resolved chemical information about the distribution of different components within pharmaceutical formulations is integral for improving the understanding and quality of final drug products. This review aims to summarise some key advances of these technologies over recent years, primarily since 2010. An overview of FTIR, NIR, terahertz spectroscopic imaging and Raman mapping will be presented to give a perspective of the current state-of-the-art of these techniques for studying pharmaceutical samples. This will include their application to reveal spatial information of components that reveals molecular insight of polymorphic or structural changes, behaviour of formulations during dissolution experiments, uniformity of materials and detection of counterfeit products. Furthermore, new advancements will be presented that demonstrate the continuing novel applications of spectroscopic imaging and mapping, namely in FTIR spectroscopy, for studies of microfluidic devices. Whilst much of the recently developed work has been reported by academic groups, examples of the potential impacts of utilising these imaging and mapping technologies to support industrial applications have also been reviewed.
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Affiliation(s)
- Andrew V Ewing
- Imperial College London, Department of Chemical Engineering, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Sergei G Kazarian
- Imperial College London, Department of Chemical Engineering, South Kensington Campus, London SW7 2AZ, United Kingdom.
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27
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Inoue M, Hisada H, Koide T, Carriere J, Heyler R, Fukami T. In Situ Monitoring of Crystalline Transformation of Carbamazepine Using Probe-Type Low-Frequency Raman Spectroscopy. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.6b00329] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Motoki Inoue
- Department
of Molecular Pharmaceutics, Meiji Pharmaceutical University, Kiyose, Tokyo 204-8588, Japan
| | - Hiroshi Hisada
- Department
of Molecular Pharmaceutics, Meiji Pharmaceutical University, Kiyose, Tokyo 204-8588, Japan
| | - Tatsuo Koide
- Division
of Drugs, National Institute of Health Sciences, Setagaya, 158-8501 Tokyo, Japan
| | - James Carriere
- Ondax Inc., Duarte Rd, Monrovia, 91016 California, United States
| | - Randy Heyler
- Ondax Inc., Duarte Rd, Monrovia, 91016 California, United States
| | - Toshiro Fukami
- Department
of Molecular Pharmaceutics, Meiji Pharmaceutical University, Kiyose, Tokyo 204-8588, Japan
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28
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Yan S, Zhang H, Yang Z, Tang M, Zhang M, Du C, Cui HL, Wei D. Transformation and dehydration kinetics of methylene blue hydrates detected by terahertz time-domain spectroscopy. RSC Adv 2017. [DOI: 10.1039/c7ra07118c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Three methylene blue crystalline hydrates were identified by terahertz spectroscopy according to their different THz absorption features.
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Affiliation(s)
- Shihan Yan
- Chongqing Key Laboratory of Multi-Scale Manufacturing Technology
- Chongqing Institute of Green and Intelligent Technology
- Chinese Academy of Sciences
- Chongqing
- China
| | - Hua Zhang
- Chongqing Key Laboratory of Multi-Scale Manufacturing Technology
- Chongqing Institute of Green and Intelligent Technology
- Chinese Academy of Sciences
- Chongqing
- China
| | - Zhongbo Yang
- Chongqing Key Laboratory of Multi-Scale Manufacturing Technology
- Chongqing Institute of Green and Intelligent Technology
- Chinese Academy of Sciences
- Chongqing
- China
| | - Mingjie Tang
- Chongqing Key Laboratory of Multi-Scale Manufacturing Technology
- Chongqing Institute of Green and Intelligent Technology
- Chinese Academy of Sciences
- Chongqing
- China
| | - Mingkun Zhang
- Chongqing Key Laboratory of Multi-Scale Manufacturing Technology
- Chongqing Institute of Green and Intelligent Technology
- Chinese Academy of Sciences
- Chongqing
- China
| | - Chunlei Du
- Chongqing Key Laboratory of Multi-Scale Manufacturing Technology
- Chongqing Institute of Green and Intelligent Technology
- Chinese Academy of Sciences
- Chongqing
- China
| | - Hong-Liang Cui
- Chongqing Key Laboratory of Multi-Scale Manufacturing Technology
- Chongqing Institute of Green and Intelligent Technology
- Chinese Academy of Sciences
- Chongqing
- China
| | - Dongshan Wei
- Chongqing Key Laboratory of Multi-Scale Manufacturing Technology
- Chongqing Institute of Green and Intelligent Technology
- Chinese Academy of Sciences
- Chongqing
- China
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