1
|
Jing S, Wu L, Siciliano AP, Chen C, Li T, Hu L. The Critical Roles of Water in the Processing, Structure, and Properties of Nanocellulose. ACS NANO 2023; 17:22196-22226. [PMID: 37934794 DOI: 10.1021/acsnano.3c06773] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
The cellulose industry depends heavily on water owing to the hydrophilic nature of cellulose fibrils and its potential for sustainable and innovative production methods. The emergence of nanocellulose, with its excellent properties, and the incorporation of nanomaterials have garnered significant attention. At the nanoscale level, nanocellulose offers a higher exposure of hydroxyl groups, making it more intimate with water than micro- and macroscale cellulose fibers. Gaining a deeper understanding of the interaction between nanocellulose and water holds the potential to reduce production costs and provide valuable insights into designing functional nanocellulose-based materials. In this review, water molecules interacting with nanocellulose are classified into free water (FW) and bound water (BW), based on their interaction forces with surface hydroxyls and their mobility in different states. In addition, the water-holding capacity of cellulosic materials and various water detection methods are also discussed. The review also examines water-utilization and water-removal methods in the fabrication, dispersion, and transport of nanocellulose, aiming to elucidate the challenges and tradeoffs in these processes while minimizing energy and time costs. Furthermore, the influence of water on nanocellulose properties, including mechanical properties, ion conductivity, and biodegradability, are discussed. Finally, we provide our perspective on the challenges and opportunities in developing nanocellulose and its interplay with water.
Collapse
Affiliation(s)
- Shuangshuang Jing
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Lianping Wu
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Amanda P Siciliano
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Chaoji Chen
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Teng Li
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
- Center for Materials Innovation, University of Maryland, College Park, Maryland 20742, United States
| |
Collapse
|
2
|
Ma T, Inagaki T, Tsuchikawa S. Validation study on light scattering changes in kiwifruit during postharvest storage using time-resolved transmittance spectroscopy. Sci Rep 2023; 13:16556. [PMID: 37783700 PMCID: PMC10545835 DOI: 10.1038/s41598-023-43777-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 09/28/2023] [Indexed: 10/04/2023] Open
Abstract
Visible and near-infrared spectroscopy has been well studied for characterizing the organic compounds in fruit and vegetables from pre-harvest to late harvest. However, due to the challenge of decoupling of optical properties, the relationship between the collected samples' spectral data and their properties, especially their mechanical properties (e.g., firmness, hardness, and resilience) is hard to understand. This study developed a time-resolved transmittance spectroscopic method to validate the light scattering changing characteristics in kiwifruit during shelf-life and in cold storage conditions. The experimental results demonstrated that the reduced scattering coefficient ([Formula: see text]) of 846 nm inside kiwifruit decreased steadily during postharvest storage and is more evident under shelf-life than in cold storage conditions. Moreover, the correlation between the [Formula: see text] and the storage time was confirmed to be much higher than that using the external color indexes measured using a conventional colorimeter. Furthermore, employing time-resolved profiles at this single wavelength, an efficacious mathematical model has been successfully formulated to classify the stages of kiwifruit softening, specifically early, mid-, and late stages. Notably, classification accuracies of 84% and 78% were achieved for the shelf-life and cold storage conditions, respectively.
Collapse
Affiliation(s)
- Te Ma
- Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan
| | - Tetsuya Inagaki
- Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan
| | - Satoru Tsuchikawa
- Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan.
| |
Collapse
|
3
|
Koumbogle K, Gosselin R, Gitzhofer F, Abatzoglou N. Moisture Behavior of Pharmaceutical Powder during the Tableting Process. Pharmaceutics 2023; 15:1652. [PMID: 37376100 DOI: 10.3390/pharmaceutics15061652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/25/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
The moisture content of pharmaceutical powder is a key parameter contributing to tablet sticking during the tableting process. This study investigates powder moisture behavior during the compaction phase of the tableting process. Finite element analysis software COMSOL Multiphysics® 5.6 was used to simulate the compaction microcrystalline cellulose (VIVAPUR PH101) powder and predict temperature and moisture content distributions, as well as their evolution over time, during a single compaction. To validate the simulation, a near-infrared sensor and a thermal infrared camera were used to measure tablet surface temperature and surface moisture, respectively, just after ejection. The partial least squares regression (PLS) method was used to predict the surface moisture content of the ejected tablet. Thermal infrared camera images of the ejected tablet showed powder bed temperature increasing during compaction and a gradual rise in tablet temperature along with tableting runs. Simulation results showed that moisture evaporate from the compacted powder bed to the surrounding environment. The predicted surface moisture content of ejected tablets after compaction was higher compared to that of loose powder and decreased gradually as tableting runs increased. These observations suggest that the moisture evaporating from the powder bed accumulates at the interface between the punch and tablet surface. Evaporated water molecules can be physiosorbed on the punch surface and cause a capillary condensation locally at the punch and tablet interface during dwell time. Locally formed capillary bridge may induce a capillary force between tablet surface particles and the punch surface and cause the sticking.
Collapse
Affiliation(s)
- Komlan Koumbogle
- Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 Boulevard de l'Université, Sherbrooke, QC J1K 2R1, Canada
| | - Ryan Gosselin
- Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 Boulevard de l'Université, Sherbrooke, QC J1K 2R1, Canada
| | - François Gitzhofer
- Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 Boulevard de l'Université, Sherbrooke, QC J1K 2R1, Canada
| | - Nicolas Abatzoglou
- Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 Boulevard de l'Université, Sherbrooke, QC J1K 2R1, Canada
| |
Collapse
|
4
|
Fang X, Hu Y, Huang Z, Han L, Li B, Lu S, Cao Y. Exploring the formation mechanism of coamorphous andrographolide-oxymatrine based on molecular dynamics and spectroscopy. J Pharm Sci 2022; 111:2056-2071. [DOI: 10.1016/j.xphs.2022.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/05/2022] [Accepted: 02/06/2022] [Indexed: 12/18/2022]
|
5
|
Li Y, Via BK, Li Y. Lifting wavelet transform for Vis-NIR spectral data optimization to predict wood density. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118566. [PMID: 32570042 DOI: 10.1016/j.saa.2020.118566] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 05/17/2020] [Accepted: 05/28/2020] [Indexed: 06/11/2023]
Abstract
Visible and near infrared (Vis-NIR) spectroscopy is a mature analytical tool for qualitative and quantitative analysis in various sectors. However, in the face of "curse of dimensionality" due to thousands of wavelengths for a Vis-NIR spectrum of a sample, the complexity of computation and memory will be increased. Additionally, variable optimization technique can be used to improve prediction accuracy through removing some irrelevant information or noise. Wood density is a critical parameter of wood quality because it determines other important traits. Accurate estimation of wood density is becoming increasingly important for forest management and end uses of wood. In this study, the performance of two-dimensional (2D) correlation spectroscopy between wavelengths of various spectral transformations, i.e., reflectance spectra (R), reciprocal (1/R), and logarithm spectra (log (1/R)), were analyzed before optimizing spectral variable. The spectra of optimal transformation were decomposed using biorthogonal wavelet family from 3rd to 8th decomposition level based on lifting wavelet transform (LWT). The optimal wavelet coefficients of LWT were selected based on the performance of calibration set using partial least squares (PLS). Two frequent variable selection methods including uninformative variable elimination (UVE) and competitive adaptive reweighted sampling (CARS) were also compared. The results showed that the dimensionality of spectral matrix was reduced from 2048 to 16 and the best density prediction results of Siberian elm (Ulmus pumila L.) were obtained (Rp2R = 0.899, RMSEP = 0.016) based on LWT.
Collapse
Affiliation(s)
- Ying Li
- College of Engineering and Technology, Northeast Forestry University, Harbin 150040, China.
| | - Brian K Via
- Forest Products Development Center, SFWS, Auburn University, Auburn 36849, USA.
| | - Yaoxiang Li
- College of Engineering and Technology, Northeast Forestry University, Harbin 150040, China.
| |
Collapse
|
6
|
Beć KB, Grabska J, Huck CW. Near-Infrared Spectroscopy in Bio-Applications. Molecules 2020; 25:E2948. [PMID: 32604876 PMCID: PMC7357077 DOI: 10.3390/molecules25122948] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/19/2020] [Accepted: 06/21/2020] [Indexed: 11/17/2022] Open
Abstract
Near-infrared (NIR) spectroscopy occupies a specific spot across the field of bioscience and related disciplines. Its characteristics and application potential differs from infrared (IR) or Raman spectroscopy. This vibrational spectroscopy technique elucidates molecular information from the examined sample by measuring absorption bands resulting from overtones and combination excitations. Recent decades brought significant progress in the instrumentation (e.g., miniaturized spectrometers) and spectral analysis methods (e.g., spectral image processing and analysis, quantum chemical calculation of NIR spectra), which made notable impact on its applicability. This review aims to present NIR spectroscopy as a matured technique, yet with great potential for further advances in several directions throughout broadly understood bio-applications. Its practical value is critically assessed and compared with competing techniques. Attention is given to link the bio-application potential of NIR spectroscopy with its fundamental characteristics and principal features of NIR spectra.
Collapse
Affiliation(s)
- Krzysztof B. Beć
- Institute of Analytical Chemistry and Radiochemistry, Leopold-Franzens University, Innrain 80/82, CCB-Center for Chemistry and Biomedicine, 6020 Innsbruck, Austria;
| | | | - Christian W. Huck
- Institute of Analytical Chemistry and Radiochemistry, Leopold-Franzens University, Innrain 80/82, CCB-Center for Chemistry and Biomedicine, 6020 Innsbruck, Austria;
| |
Collapse
|
7
|
Cherdkeattikul S, Morisawa Y, Ida T. Surface Structural Transformation of Pre-carbonized Solid Biomass from Japanese Cedar via ATR-FTIR and PCA. ANAL SCI 2020; 36:723-729. [PMID: 31902825 DOI: 10.2116/analsci.19p412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This present research applied the ATR-FTIR technique and principle component analysis (PCA) to investigate molecular surface changes in pre-carbonized solid biomass, called Kindai Bio-coke (BIC) and Japanese cedar. The product is utilized as an alternative to coal coke in the cupola furnace in the steel industry in order to reduce CO2 emissions. The aim is to explore key elements for improving the BIC product applications from the fundamental molecular scale by using PCA to distinguish between changes during the BIC transformation and the differences in BIC samples. Results revealed that transformation occurred at the surface of Japanese cedar raw materials and Japanese cedar BIC. Major changes were observed in the O-H, C-H and C-O stretching regions. The intensity of the IR bands attributed to aliphatic methyl (CH3) and methylene (CH2) stretching modes increased, while a weak O-H stretching intensity associated with BIC hydrophobic characteristic decreased.
Collapse
Affiliation(s)
| | - Yusuke Morisawa
- Department of Chemistry, School of Science and Engineering, Kindai University
| | - Tamio Ida
- Bio-Coke Research Institute, Kindai University
| |
Collapse
|
8
|
Adsorption and solidification of peppermint oil on microcrystalline cellulose surface: An experimental and DFT study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127558] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
9
|
Abstract
The Python programing language is becoming a promising tool for data analysis in various fields. However, little attention has been paid to using Python in the field of analytical chemistry, though recent advances in instrumental analysis require robust and reliable data analysis. In order to overcome the difficulty in accurate analysis, multivariate analysis, or chemometrics, has been widely applied to various kinds of data obtained by instrumental analysis. In the present work, the potential usefulness of Python for chemometrics and related fields in chemistry is reviewed. Many practical tools for chemometrics, e.g., principal component analysis (PCA), partial least squares (PLS), support vector machine (SVM), etc., are included in the scikit-learn machine learning (ML) library for Python. Other useful libraries such as pyMCR for multivariate curve resolution (MCR), 2Dpy for two-dimensional correlation spectroscopy (2D-COS), etc. can be obtained from GitHub. For these reasons, a computational environment for chemometrics is easily constructed in Python.
Collapse
Affiliation(s)
- Shigeaki Morita
- Department of Engineering Science, Osaka Electro-Communication University
| |
Collapse
|
10
|
Guo F, Altaner CM. Effects of mechanical stretching, desorption and isotope exchange on deuterated eucalypt wood studied by near infrared spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 211:254-259. [PMID: 30557842 DOI: 10.1016/j.saa.2018.12.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 11/28/2018] [Accepted: 12/06/2018] [Indexed: 06/09/2023]
Abstract
Deuterium exchange combined with near infrared (NIR) spectroscopy was used to study the roles of accessible and inaccessible cellulose in the load transfer of eucalyptus wood. Monitoring the drying process helped to assign NIR bands of deuterated wood samples. Polarized NIR spectra of protonated and deuterated samples confirmed that inaccessible hydroxyl groups in eucalyptus wood were preferably oriented in the longitudinal direction. The spectral changes on NIR spectra caused by mechanical strain could be highlighted by averaging loading and unloading cycles to compensate for effects of desorption and isotope re-exchange due to environmental fluctuations. After deuteration, the bands affected by mechanical strain at around 6420, 6240 and 4670 cm-1, which had been assigned to hydroxyl groups in cellulose, remained at these positions, suggesting the inaccessible cellulose fraction was the main load-bearing component in wood. A small band at around 4700 cm-1 responding to mechanical strain, becoming visible in the deuterated spectra, indicated that accessible hydroxyls also contributed to the load transfer. Furthermore, the measurements confirmed previous reports of moisture adsorption of wood under tensile stress.
Collapse
Affiliation(s)
- Fei Guo
- New Zealand School of Forestry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - Clemens M Altaner
- New Zealand School of Forestry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
| |
Collapse
|
11
|
Process control and in vitro/in vivo evaluation of aripiprazole sustained-release microcrystals for intramuscular injection. Eur J Pharm Sci 2018; 125:193-204. [DOI: 10.1016/j.ejps.2018.09.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 09/01/2018] [Accepted: 09/24/2018] [Indexed: 11/22/2022]
|
12
|
Hoshina H, Iwasaki Y, Katahira E, Okamoto M, Otani C. Structure and dynamics of bound water in poly(ethylene-vinylalcohol) copolymers studied by terahertz spectroscopy. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.06.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
13
|
Guo F, Altaner CM. Molecular deformation of wood and cellulose studied by near infrared spectroscopy. Carbohydr Polym 2018; 197:1-8. [PMID: 30007593 DOI: 10.1016/j.carbpol.2018.05.064] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/10/2018] [Accepted: 05/22/2018] [Indexed: 11/30/2022]
Abstract
Wood (Eucalyptus regnans and Pinus radiata) and paper samples were stretched to different strain levels using a purpose-built tensile test device fitted into a near infrared (NIR) spectrometer while collecting transmission spectra. Consistent spectral changes caused by mechanical strain, assigned to OH stretching bands, were observed for all three sample types. Bands at 6286 ± 5 cm-1 and 6470 ± 10 cm-1 were tentatively assigned to the OH groups connected with the 2OH⋯6O and 3OH⋯5O intramolecular hydrogen bonds of crystalline cellulose Iβ, respectively. Both bands shifted to higher wavenumbers indicating the elongation of the hydrogen bonds. A linear relationship was found between band shifts and mechanical strain. Band shift rates for the 3OH bond were more than twice that of the 2OH bond, consistent with bending of the glycosidic bond. Bending tests showed that the band at around 6286 cm-1 shifted in opposite direction when under tension or compression.
Collapse
Affiliation(s)
- Fei Guo
- New Zealand School of Forestry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
| | - Clemens M Altaner
- New Zealand School of Forestry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
| |
Collapse
|
14
|
Effect of surface coating of microcrystalline cellulose by imidazole molecules on proton conductivity. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.03.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
15
|
Ji P, Jin J, Chen X, Wang C, Wang H. Characterization of water state and distribution in fibre materials by low-field nuclear magnetic resonance. RSC Adv 2016. [DOI: 10.1039/c5ra21018f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The states of absorbed water in the cotton and PET fibres materials characterized by LF-NMR method.
Collapse
Affiliation(s)
- Peng Ji
- Key Laboratory for Modification of Chemical Fibres and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- P. R. China
| | - Jin Jin
- Key Laboratory for Modification of Chemical Fibres and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- P. R. China
| | - Xianglin Chen
- Key Laboratory for Modification of Chemical Fibres and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- P. R. China
| | - Chaosheng Wang
- Key Laboratory for Modification of Chemical Fibres and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- P. R. China
| | - Huaping Wang
- Key Laboratory for Modification of Chemical Fibres and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- P. R. China
| |
Collapse
|
16
|
Wang T, Ibrahim A, Potts AR, Hoag SW. Application of Multivariate Strategies to the Classification of Pharmaceutical Excipient Manufacturers Based on Near-Infrared (NIR) Spectra. APPLIED SPECTROSCOPY 2015; 69:1257-1270. [PMID: 26647049 DOI: 10.1366/15-07859] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Using partial least square discriminate analysis (PLSDA), we studied the spectroscopic differences between the commonly used filler-binder microcrystalline cellulose (MCC) from five manufactures. These samples had subtle differences in the chemical and physical properties, which are often the cause of differences in excipient performance. Studying these differences allowed us to build and validate a model to classify five manufacturers of MCC using near-infrared (NIR) spectra. The sample training set includes 39 MCC samples collected from five manufactures with regions spanning the United States of America, Japan, Taiwan, Germany, and Brazil. The samples from individual manufacturers include diverse grades that differ in moisture content, particle size, and bulk density. Optimized pretreatment methods were identified as standard normal variate normalization, followed by Savitzky-Golay second derivative, mean centering, and orthogonal signal correction. The model was optimized with cross-validation and validated with an independent sample set comprising nine samples collected from those five manufacturers. The results showed that none of the samples in the independent validation set was misclassified. The score and loading plots revealed that the differences in content of oxidized cellulose group, water content and states, hydrogen bonding, and degree of polymerization of the MCC samples are responsible for the class differentiation. Permutation test demonstrated that the outcome of the PLSDA model was significantly different from that of the randomly generated model. The advantages and limitations of the method in this type of application were discussed.
Collapse
Affiliation(s)
- Ting Wang
- University of Maryland, Department of Pharmaceutical Sciences, Baltimore, MD 21201 USA
| | | | | | | |
Collapse
|
17
|
Khorasani M, Amigo J, Sonnergaard J, Olsen P, Bertelsen P, Rantanen J. Visualization and prediction of porosity in roller compacted ribbons with near-infrared chemical imaging (NIR-CI). J Pharm Biomed Anal 2015; 109:11-7. [DOI: 10.1016/j.jpba.2015.02.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 02/04/2015] [Accepted: 02/05/2015] [Indexed: 11/17/2022]
|
18
|
Saripella KK, Mallipeddi R, Neau SH. Crospovidone Interactions with Water. I. Calorimetric Study of the Effect of Polyplasdone Particle Size on Its Uptake and Distribution of Water. J Pharm Sci 2014; 103:669-75. [DOI: 10.1002/jps.23846] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 11/29/2013] [Accepted: 12/16/2013] [Indexed: 11/08/2022]
|
19
|
Awa K, Shinzawa H, Ozaki Y. An effect of cellulose crystallinity on the moisture absorbability of a pharmaceutical tablet studied by near-infrared spectroscopy. APPLIED SPECTROSCOPY 2014; 68:625-632. [PMID: 25014717 DOI: 10.1366/13-07273] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, we investigated molecular-level variation of tablets caused by grinding and its effect on their actual moisture absorbability. Model tablets contained acetaminophen as an active pharmaceutical ingredient and microcrystalline cellulose (MCC) as an excipient. Different levels of grinding were applied during the tablet formulation to intentionally cause the structural variation of the MCC. The moisture absorbability of tablets showed obvious variation depending on the grinding time, and the corresponding change in near-infrared spectra was readily captured. The detailed analysis of the variation of the band frequencies (i.e., wavenumber) revealed that the grinding process substantially disintegrates the crystalline and generates a glassy amorphous structure of MCC, which is a requirement to absorb water molecules. Consequently, it is very likely that the change of the moisture absorbability of the tablets is closely related to the development of the amorphous structure. These results indicate that the pharmaceutical product performances can be influenced by the physical properties of the excipient, which in turn can be controlled by the grinding process.
Collapse
Affiliation(s)
- Kimie Awa
- Dainippon Sumitomo Pharma Co., Ltd., Osaka 554-0022, Japan
| | | | | |
Collapse
|
20
|
Shinzawa H, Awa K, Noda I, Ozaki Y. Multiple-perturbation two-dimensional near-infrared correlation study of time-dependent water absorption behavior of cellulose affected by pressure. APPLIED SPECTROSCOPY 2013; 67:163-170. [PMID: 23622435 DOI: 10.1366/12-06694] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Transient water absorption by cellulosic samples manufactured under varying pressure was monitored by near-infrared spectroscopy to explore the absorption behavior affected by the pressure. A substantial level of variation of the spectral features was induced by the water absorption and changes in the pressure. The detail of the spectral changes was analyzed with a multiple-perturbation, two-dimensional (2D) correlation method to determine the underlying mechanism. The 2D correlation spectra indicated that the compression of the cellulose increased the packing density of the samples, preventing the penetration of water. In addition, the compression substantially disintegrated its crystalline structure and eventually resulted in the development of inter- and intrachain hydrogen-bonded structures arising from an interaction between the water and cellulose. Consequently, the cellulose samples essentially underwent an evolutionary change in the polymer structure as well as in the packing density during the compression. This structural change, in turn, led to the seemingly complicated absorption trends, depending on the pressure.
Collapse
Affiliation(s)
- Hideyuki Shinzawa
- Research Institute of Instrumentation Frontier, Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan.
| | | | | | | |
Collapse
|
21
|
He H, Chen H, Zheng Y, Zhang X, Yao X, Yu Z, Zhang S. The Hydrogen-Bonding Interactions between 1-Ethyl-3-Methylimidazolium Lactate Ionic Liquid and Methanol. Aust J Chem 2013. [DOI: 10.1071/ch12308] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
1-Ethyl-3-Methylimidazolium lactate ([EMIM][LAC]) is an environmental friendly ionic liquid with potential industrial applications. Attenuated total reflectance infrared spectroscopy (ATR-IR) and density functional theory (DFT) calculations were employed to investigate the molecular interactions between methanol and [EMIM][LAC]. The infrared spectra were analyzed by two methods: excess spectroscopy and two-dimensional (2D) correlation spectroscopy. In the ATR-FTIR spectra, v(C4,5–H), v(C2–H), v(alkyl), v(–OD), and v(–COO) all show blue shifts upon addition of methanol. 2D correlation analysis indicated that the v(imidazolium ring C–H) band varies before that of v(alkyl C–H) with increasing CD3OD content. The following sequential order of interaction strength is established by DFT calculations: EMIM–methanol –LAC > EMIM–LAC > LAC–methanol > EMIM–methanol.
Collapse
|
22
|
Albaalbaki B, Hill RJ. On molecular diffusion in nanostructured porous media: interfacial exchange kinetics and surface diffusion. Proc Math Phys Eng Sci 2012. [DOI: 10.1098/rspa.2012.0172] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Water-vapour transport in nanostructured composite materials is poorly understood because diffusion and interfacial exchange kinetics are coupled. We formulate an interfacial balance that couples diffusion in dispersed and continuous phases to adsorption, absorption and interfacial surface diffusion. This work is motivated by water-vapour transport in cellulose fibre-based barriers, but the model applies to nanostructured porous media such as catalysts, chromatography columns, nanocomposites, cementitious structures and biomaterials. The interfacial balance can be applied in an analytical or a computational framework to porous media with any microstructural geometry. Here, we explore its capabilities in a model porous medium: randomly dispersed solid spheres in a continuous (humid) gas. We elucidate the roles of equilibrium moisture uptake, solid, gas and surface diffusion coefficients, inclusion size and interfacial exchange kinetics on the effective diffusivity. We then apply the local model to predict water-vapour transport rates under conditions in which the effective diffusivity varies through the cross section of a dense, homogeneous membrane that is subjected to a finite moisture-concentration gradient. As the microstructural length scale decreases from micrometres to nanometres, interfacial exchange kinetics and surface diffusion produce a maximum in the tracer flux. This optimal flux is flanked, respectively, by interfacial-kinetic- and diffusion-limited transport at smaller and larger microscales.
Collapse
Affiliation(s)
- Bashar Albaalbaki
- Department of Chemical Engineering, McGill University, Montreal, Quebec, Canada H3A 2B2
| | - Reghan J. Hill
- Department of Chemical Engineering, McGill University, Montreal, Quebec, Canada H3A 2B2
| |
Collapse
|
23
|
Zhao G, Kapur N, Carlin B, Selinger E, Guthrie J. Characterisation of the interactive properties of microcrystalline cellulose–carboxymethyl cellulose hydrogels. Int J Pharm 2011; 415:95-101. [DOI: 10.1016/j.ijpharm.2011.05.054] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 05/19/2011] [Accepted: 05/20/2011] [Indexed: 11/17/2022]
|
24
|
Liu Y, Gamble G, Thibodeaux D. Two-dimensional attenuated total reflection infrared correlation spectroscopy study of the desorption process of water-soaked cotton fibers. APPLIED SPECTROSCOPY 2010; 64:1355-1363. [PMID: 21144153 DOI: 10.1366/000370210793561556] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Two-dimensional (2D) correlation analysis was applied to characterize the attenuated total reflection (ATR) spectral intensity fluctuations of native cotton fibers with various water contents. Prior to 2D analysis, the spectra were leveled to zero at the peak intensity of 1800 cm(-1) and then were normalized at the peak intensity of 660 cm(-1) to subjectively correct the changes resulting from water diffusion in fibers and resultant density dilution. Next, a new spectral set was subjected to principal component analysis (PCA) and two clusters of hydrated (≥13.3%) and dehydrated (<13.3%) fibers were obtained. Synchronous and asynchronous 2D correlation spectra from individual ATR spectral sets enhanced spectral resolution and provided insights about water-content-dependent intensity variations not readily accessible from one-dimensional ATR spectra. The 2D results revealed remarkable differences corresponding to water loss between the hydrated and dehydrated fibers. Of interest were that: (1) the intensity of the 1640 cm(-1) water band remains in a steady state for hydrated fibers but decreases for dehydrated fibers; (2) during the desorption process of adsorbed water, small and water-soluble carbonyl species (i.e., esters, acids, carboxylates, and proteins) begin to accumulate on the cotton surface, resulting in possible changes in the coloration and surface chemistry of native cotton fibers that were rained on prior to harvesting; (3) intensities of bands in the 1200 to 950 cm(-1) region exhibit a more apparent intensity increase than those in the 1500 to 1200 cm(-1) region, indicating the sensitivity of the 1200 to 950 cm(-1) infrared (IR) region to intra- and inter-molecular hydrogen bonding in fiber celluloses; and (4) the 750 cm(-1) band, ascribed to the unstable I(α) phase in amorphous regions, might originate from the cellulose-water complex through hydrogen bonding.
Collapse
Affiliation(s)
- Yongliang Liu
- USDA, ARS, Cotton Quality Research Station, P.O. Box 792, Clemson, South Carolina 29633, USA.
| | | | | |
Collapse
|
25
|
|
26
|
Self-modeling curve resolution (SMCR) kernel analysis of time-dependent near-infrared (NIR) spectra of water and cellulose mixtures. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.02.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
27
|
Pereira CF, Pasquini C. A flow system for generation of concentration perturbation in two-dimensional correlation near-infrared spectroscopy: application to variable selection in multivariate calibration. APPLIED SPECTROSCOPY 2010; 64:507-513. [PMID: 20482969 DOI: 10.1366/000370210791211772] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A flow system is proposed to produce a concentration perturbation in liquid samples, aiming at the generation of two-dimensional correlation near-infrared spectra. The system presents advantages in relation to batch systems employed for the same purpose: the experiments are accomplished in a closed system; application of perturbation is rapid and easy; and the experiments can be carried out with micro-scale volumes. The perturbation system has been evaluated in the investigation and selection of relevant variables for multivariate calibration models for the determination of quality parameters of gasoline, including ethanol content, MON (motor octane number), and RON (research octane number). The main advantage of this variable selection approach is the direct association between spectral features and chemical composition, allowing easy interpretation of the regression models.
Collapse
|
28
|
Purcell DE, O'Shea MG, Kokot S. Complex biopolymeric systems at stalk/epicuticular wax plant interfaces: A near infrared spectroscopy study of the sugarcane example. Biopolymers 2009; 91:642-51. [DOI: 10.1002/bip.21193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
29
|
Shinzawa H, Awa K, Ozaki Y, Sato H. Near-infrared imaging analysis of cellulose tablets by a band position shift. APPLIED SPECTROSCOPY 2009; 63:974-977. [PMID: 19678998 DOI: 10.1366/000370209788964584] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
- Hideyuki Shinzawa
- Research Institute of Instrumentation Frontier, Advanced Industrial Science and Technology (AIST), Japan.
| | | | | | | |
Collapse
|
30
|
Morita S, Hattori E, Kitagawa K. Two-dimensional imaging of water vapor by near-infrared laser absorption spectroscopy. APPLIED SPECTROSCOPY 2008; 62:1216-1220. [PMID: 19007462 DOI: 10.1366/000370208786401680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Both a flow of water vapor generated from a humidification device and stable water vapor at constant moisture were successfully visualized by near-infrared (NIR) laser absorption spectroscopy. Two different types of optical arrangement for two-dimensional (2D) imaging, i.e., one-wavelength reflection and two-wavelength transmission, were tested. A flow of water vapor within a wide view range was clearly visualized by the former, while low content of stable water vapor was quantitatively detected by the latter. It was demonstrated that a detection limit of 0.8 g.m(-3) was achieved by means of the 2D-NIR imaging system developed in the present study.
Collapse
Affiliation(s)
- Shigeaki Morita
- Division of Energy Science, EcoTopia Science Institute, Nagoya University, Nagoya 464-8603, Japan.
| | | | | |
Collapse
|
31
|
|
32
|
Sahin HT, Arslan MB. A study on physical and chemical properties of cellulose paper immersed in various solvent mixtures. Int J Mol Sci 2008; 9:78-88. [PMID: 19325721 PMCID: PMC2635603 DOI: 10.3390/ijms9010078] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2007] [Accepted: 01/10/2008] [Indexed: 11/16/2022] Open
Abstract
The cellulose paper treated in proportional mixture systems showed higher liquid absorption compare to only EtOH and MeOH treatments. It was approximately 40–70% and 50–91% higher for EtOH-NaOH and MeOH-NaOH treated papers, respectively. All conditions apparently bring about an effect of decreased strength for papers. The lowest tensile strength of 13.0 N/mm was found with EtOH and NaOH treated samples after 5th repeating wetting-drying stage. But, some conditions gave approximately 21–59.5% higher stretch than untreated samples. The pore size distributions of papers were evaluated with Simons stain procedure and experimental results usually consisted with sorption data. The less intense CH2–CH2- vibrations (1450–1700 cm−1) and C-C and C-O-C peak areas in FTIR spectra indicates lowering H-bonds in solvent treated and dried paper network structure.
Collapse
Affiliation(s)
- Halil Turgut Sahin
- Suleyman Demirel University, Forestry Faculty, Department of Forest Products Engineering, 32260 Isparta, Turkey
| | - Mustafa Burak Arslan
- Suleyman Demirel University, Forestry Faculty, Department of Forest Products Engineering, 32260 Isparta, Turkey
| |
Collapse
|