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Zhang B, Hou Z, Yan B, Zhao Y, Peng B, Qian S, Li K, Su B, Zhang C. Trehalose and its dihydrate: terahertz insights from solid to solution states. BIOMEDICAL OPTICS EXPRESS 2024; 15:3037-3049. [PMID: 38855704 PMCID: PMC11161380 DOI: 10.1364/boe.519006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/13/2024] [Accepted: 03/27/2024] [Indexed: 06/11/2024]
Abstract
Carbohydrates are pivotal biomolecules in biochemistry; this study employs terahertz time-domain spectroscopy (THz-TDS) to investigate the spectral characteristics of trehalose and its hydrate across the 0.1 to 2.2 THz frequency range. Notable differences in spectra between the two compounds were observed. Density Functional Theory (DFT) simulations of the crystal structure were conducted to elucidate this phenomenon. The consistency between experimental results and simulations substantiates the reliability of the experimental findings. Additionally, the spectral characteristics of these carbohydrates in solution were examined using microfluidic chip technology. This approach facilitates a comprehensive comparison of their behaviors in both solid and solution states.
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Affiliation(s)
- Boyan Zhang
- Department of Physics, Capital Normal University, Beijing 100048, China
- Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China
- Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China
| | - Zeyu Hou
- Department of Physics, Capital Normal University, Beijing 100048, China
- Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China
- Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China
| | - Bingxin Yan
- Department of Physics, Capital Normal University, Beijing 100048, China
- Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China
- Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China
| | - Yuhan Zhao
- Department of Physics, Capital Normal University, Beijing 100048, China
- Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China
- Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China
| | - Bo Peng
- Department of Physics, Capital Normal University, Beijing 100048, China
- Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China
- Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China
| | - Siyu Qian
- Department of Physics, Capital Normal University, Beijing 100048, China
- Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China
- Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China
| | - Kai Li
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Bo Su
- Department of Physics, Capital Normal University, Beijing 100048, China
- Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China
- Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China
| | - Cunlin Zhang
- Department of Physics, Capital Normal University, Beijing 100048, China
- Beijing Advanced Innovation Centre for Imaging Theory and Technology, Beijing 100048, China
- Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Beijing 100048, China
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China
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Determination of starch crystallinity with the Fourier-transform terahertz spectrometer. Carbohydr Polym 2021; 262:117928. [PMID: 33838806 DOI: 10.1016/j.carbpol.2021.117928] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/22/2021] [Accepted: 03/07/2021] [Indexed: 11/22/2022]
Abstract
We measured the terahertz (THz) spectra of native, amorphous, and dried starches derived from corn and potato using the Fourier-transform (FT) system and compared these spectra to the X-ray diffraction (XRD) patterns. Both native corn and potato starches had seven absorption peaks in the terahertz regions, but five peaks were observed in the amorphous states. While spectral changes slightly occurred in corn starch even after drying, increase and decrease in the terahertz peak intensities were obtained in potato starch during drying. Similar changes in both starches during amorphization and drying were obtained in the X-ray diffraction patterns, and the correlations were found between terahertz peaks and the X-ray signals. Since the intensity of the peak at 9.0 THz was correlated with crystallinity obtained using an X-ray diffraction (r2 = 0.98), our data indicate that the Fourier-transform terahertz spectrometer can be a new analytical device to measure the starch crystallinity.
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Naftaly M, Vieweg N, Deninger A. Industrial Applications of Terahertz Sensing: State of Play. SENSORS 2019; 19:s19194203. [PMID: 31569789 PMCID: PMC6806174 DOI: 10.3390/s19194203] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 09/17/2019] [Accepted: 09/25/2019] [Indexed: 12/18/2022]
Abstract
This paper is a survey of existing and upcoming industrial applications of terahertz technologies, comprising sections on polymers, paint and coatings, pharmaceuticals, electronics, petrochemicals, gas sensing, and paper and wood industries. Finally, an estimate of the market size and growth rates is given, as obtained from a comparison of market reports.
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Affiliation(s)
- Mira Naftaly
- National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UK.
| | - Nico Vieweg
- TOPTICA Photonics AG, Lochhamer Schlag 19, 82166 Gräfelfing, Germany.
| | - Anselm Deninger
- TOPTICA Photonics AG, Lochhamer Schlag 19, 82166 Gräfelfing, Germany.
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Takeuchi I, Otsuki M, Kuroda H, Makino K. Estimation of crystallinity of indomethacin by usage of terahertz time-domain spectroscopy and calibration curve: Correlation between crystallinity and solubility. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Drug release behavior of hydrophobic drug-loaded poly (lactide-co-glycolide) nanoparticles: Effects of glass transition temperature. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.04.080] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Takeuchi I, Tetsuka Y, Nii T, Shinogase M, Makino K. Inhalable nanocomposite particles using amino acids with improved drug content and humidity resistance. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.06.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Effects of physicochemical properties of poly(lactide-co-glycolide) on drug release behavior of hydrophobic drug-loaded nanoparticles. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.02.054] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Hitzer P, Bäuerle T, Drieschner T, Ostertag E, Paulsen K, van Lishaut H, Lorenz G, Rebner K. Process analytical techniques for hot-melt extrusion and their application to amorphous solid dispersions. Anal Bioanal Chem 2017; 409:4321-4333. [PMID: 28343348 DOI: 10.1007/s00216-017-0292-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/09/2017] [Accepted: 03/02/2017] [Indexed: 11/28/2022]
Abstract
Newly developed active pharmaceutical ingredients (APIs) are often poorly soluble in water. As a result the bioavailability of the API in the human body is reduced. One approach to overcome this restriction is the formulation of amorphous solid dispersions (ASDs), e.g., by hot-melt extrusion (HME). Thus, the poorly soluble crystalline form of the API is transferred into a more soluble amorphous form. To reach this aim in HME, the APIs are embedded in a polymer matrix. The resulting amorphous solid dispersions may contain small amounts of residual crystallinity and have the tendency to recrystallize. For the controlled release of the API in the final drug product the amount of crystallinity has to be known. This review assesses the available analytical methods that have been recently used for the characterization of ASDs and the quantification of crystalline API content. Well-established techniques like near- and mid-infrared spectroscopy (NIR and MIR, respectively), Raman spectroscopy, and emerging ones like UV/VIS, terahertz, and ultrasonic spectroscopy are considered in detail. Furthermore, their advantages and limitations are discussed with regard to general practical applicability as process analytical technology (PAT) tools in industrial manufacturing. The review focuses on spectroscopic methods which have been proven as most suitable for in-line and on-line process analytics. Further aspects are spectroscopic techniques that have been or could be integrated into an extruder.
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Affiliation(s)
- Patrick Hitzer
- Process Analysis and Technology (PA&T), Faculty Applied Chemistry, Reutlingen University, Alteburgstr. 150, 72762, Reutlingen, Germany
| | - Tim Bäuerle
- Process Analysis and Technology (PA&T), Faculty Applied Chemistry, Reutlingen University, Alteburgstr. 150, 72762, Reutlingen, Germany
| | - Tobias Drieschner
- Process Analysis and Technology (PA&T), Faculty Applied Chemistry, Reutlingen University, Alteburgstr. 150, 72762, Reutlingen, Germany
| | - Edwin Ostertag
- Process Analysis and Technology (PA&T), Faculty Applied Chemistry, Reutlingen University, Alteburgstr. 150, 72762, Reutlingen, Germany
| | - Katharina Paulsen
- AbbVie Deutschland GmbH & Co.KG, Knollstr. 50, 67061, Ludwigshafen, Germany
| | - Holger van Lishaut
- AbbVie Deutschland GmbH & Co.KG, Knollstr. 50, 67061, Ludwigshafen, Germany
| | - Günter Lorenz
- Process Analysis and Technology (PA&T), Faculty Applied Chemistry, Reutlingen University, Alteburgstr. 150, 72762, Reutlingen, Germany
| | - Karsten Rebner
- Process Analysis and Technology (PA&T), Faculty Applied Chemistry, Reutlingen University, Alteburgstr. 150, 72762, Reutlingen, Germany.
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Sibik J, Zeitler JA. Direct measurement of molecular mobility and crystallisation of amorphous pharmaceuticals using terahertz spectroscopy. Adv Drug Deliv Rev 2016; 100:147-57. [PMID: 26772139 DOI: 10.1016/j.addr.2015.12.021] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 12/23/2015] [Accepted: 12/24/2015] [Indexed: 11/26/2022]
Abstract
Despite much effort in the area, no comprehensive understanding of the formation and behaviour of amorphous solids has yet been achieved. This severely limits the industrial application of such materials, including drug delivery where, in principle, amorphous solids have demonstrated their great usefulness in increasing the bioavailability of poorly aqueous soluble active pharmaceutical ingredients. Terahertz time-domain spectroscopy is a relatively novel analytical technique that can be used to measure the fast molecular dynamics of molecules with high accuracy in a non-contact and non-destructive fashion. Over the past decade a number of applications for the characterisation of amorphous drug molecules and formulations have been developed and it has been demonstrated how this technique can be used to determine the onset and strength in molecular mobility that underpins the crystallisation of amorphous drugs. In this review we provide an overview of the history, fundamentals and future perspective of pharmaceutical applications related to the terahertz dynamics of amorphous systems.
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Pharmaceutical Terahertz Spectroscopy and Imaging. ADVANCES IN DELIVERY SCIENCE AND TECHNOLOGY 2016. [DOI: 10.1007/978-1-4939-4029-5_5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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Takeuchi I, Shimakura K, Kuroda H, Nakajima T, Goto S, Makino K. Estimation of Crystallinity of Nifedipine–Polyvinylpyrrolidone Solid Dispersion by Usage of Terahertz Time-Domain Spectroscopy and of X-Ray Powder Diffractometer. J Pharm Sci 2015; 104:4307-4313. [DOI: 10.1002/jps.24671] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 09/01/2015] [Accepted: 09/14/2015] [Indexed: 11/10/2022]
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Li S, Yang J, Zhao H, Yang N, Jing D, Zhang J, Li Q, Han J. Terahertz time-domain spectroscopy and quantitative analysis of metal gluconates. APPLIED SPECTROSCOPY 2015; 69:52-57. [PMID: 25506686 DOI: 10.1366/14-07481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A series of metal gluconates (Na(+), K(+), Mg(2+), Ca(2+), Fe(2+), Cu(2+), and Zn(2+)) were investigated by terahertz (THz) time-domain spectroscopy. The absorption coefficients and refractive indices of the samples were obtained in the frequency range of 0.5-2.6 THz. The gluconates showed distinct THz characteristic fingerprints, and the dissimilarities reflect their different structures, hydrogen-bond networks, and molecular interactions. In addition, some common features were observed among these gluconates, and the similarities probably come from the similar carbohydrate anion group. The X-ray powder diffraction measurements of these metal gluconates were performed, and the copper(II) gluconate was found to be amorphous, corresponding to the monotonic increase feature in the THz absorption spectrum. The results suggest that THz spectroscopy is sensitive to molecular structure and physical form. Binary and ternary mixtures of different gluconates were quantitatively analyzed based on the Beer-Lambert law. A chemical map of a tablet containing calcium D-gluconate monohydrate and α-lactose in the polyethylene host was obtained by THz imaging. The study shows that THz technology is a useful tool in pharmaceutical research and quality control applications.
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Affiliation(s)
- Shaoxian Li
- Tianjin University, Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, 92 Weijin Road, Nankai District, Tianjin 300072, China
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Takeuchi I, Shimakura K, Ohtake H, Takayanagi J, Tomoda K, Nakajima T, Terada H, Makino K. Nondestructive Analysis of Structure and Components of Tablet Coated with Film by the Usage of Terahertz Time-Domain Reflection Spectroscopy. J Pharm Sci 2014; 103:256-61. [DOI: 10.1002/jps.23797] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 10/29/2013] [Accepted: 11/01/2013] [Indexed: 11/11/2022]
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Šarić I, Jokić M, Rakvin B, Kveder M, Maltar-Strmečki N. The effect of thermal treatment of radiation-induced EPR signals of different polymorphic forms of trehalose. Appl Radiat Isot 2013; 83 Pt A:41-6. [PMID: 24246553 DOI: 10.1016/j.apradiso.2013.10.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 08/28/2013] [Accepted: 10/01/2013] [Indexed: 11/25/2022]
Abstract
Electron paramagnetic resonance (EPR) signals induced by γ-radiation in different polymorphic forms of trehalose were studied with dosimetry applications in view. Dose response of trehalose in terms of the concentration of induced paramagnetic centers was studied in the dose range from 0.5 to 50 kGy. The dependences of the dose responses of anhydrous β-crystalline trehalose (TRE(β)) and glassy trehalose (TRE(g)) on dose are linear up to 15 kGy, whereas the linearity of the dependence for trehalose dihydrate (TRE(h)) is limited to about 10 kGy. At doses above 15 kGy, the dependences get saturated for all three forms. The relative radiation sensitivities pointed to the following order of decreasing concentrations of radiation-induced paramagnetic centers in the forms: TRE(g)>TRE(β)>TRE(h). The results showed that at all three trehalose polymorphic forms are suitable for dosimetry, especially for retrospective dose measurements. Also, thermal stability and decay kinetics of the EPR signals of the different forms of trehalose were studied in isothermal annealing experiments. The kinetic parameters, which had been derived by fitting the Arrhenius function to the measured decay rate constants, indicated that the fading of the EPR signals varied from one polymorphic form of trehalose to another. This emphasizes the impact of the molecular packing in the vicinity of the radiation-induced paramagnetic centers on their stability.
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Affiliation(s)
- Iva Šarić
- Faculty of Civil Engineering, University of Rijeka, Radmile Matejčić 3, 51000 Rijeka, Croatia; Ruder Bošković Institute, Division of Physical Chemistry, Bijenička 54, 10000 Zagreb, Croatia
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