NDLI: Compression effect on sustained-release and water absorption properties of cellulose tablets studied by heterospectral two-dimensional (2D) correlation analysis

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Analytical Methods Vol - 4 Issue - 5

Analytical Methods Vol - 4 Issue - 4

Analytical Methods Vol - 4 Issue - 3

Analytical Methods Vol - 4 Issue - 2

Analytical Methods Vol -3

Analytical Methods Vol -2

Analytical Methods Vol -1

Compression effect on sustained-release and water absorption properties of cellulose tablets studied by heterospectral two-dimensional (2D) correlation analysis

Content Provider	Royal Society of Chemistry (RSC)
Author	Shinzawa, Hideyuki Ozaki, Yukihiro Awa, Kimie
Copyright Year	2012
Abstract	Chemical and physical effects of the compression process on cellulose excipients are explored by near infrared (NIR) spectroscopy, X-ray diffraction (XRD), dissolution test and water absorption test. A set of pharmaceutical tablets including pentoxifylline (PTX) and cellulose are prepared under varying levels of compression. The compressive deformation of the tablets is probed by NIR spectroscopy and XRD. The interaction of tablet with water molecules is also analyzed with the dissolution and water absorption tests. The essential relationship between the two different classes of data, e.g. XRD and dissolution (or absorption) test, is effectively elucidated by heterospectral two-dimensional (2D) correlation analysis. It revealed that the compression produces a disordered amorphous component of cellulose. Such development of the mobile amorphous phase results in a more tightly packed matrix with less porosity. Thus, in turn, it prevents penetration of water molecules into the tablet and direct contact with PTX, which eventually brings the delay in the dissolution. Consequently, by carrying out the hetero-correlation analysis of the two datasets, it effectively provided a more detailed picture of the compression process.
Starting Page	1530
Ending Page	1537
Page Count	8
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	4
Issue Number	6
Journal	Analytical Methods
DOI	10.1039/c1ay05392b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	X-ray crystallography Pentoxifylline Infrared spectroscopy Spectroscopy Direct Contact NIR Cellulose Extracellular matrix Porosity
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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