Article (Scientific journals)
Detection of low dose of piroxicam polymorph in pharmaceutical tablets by surface-enhanced Raman chemical imaging (SER-CI) and multivariate analysis
Cailletaud, Johan; De Bleye, Charlotte; Dumont, Elodie et al.
2020In International Journal of Pharmaceutics, 574, p. 118913
Peer Reviewed verified by ORBi
 

Files


Full Text
1-s2.0-S0378517319309585-main(1).pdf
Publisher postprint (1.95 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
surface-enhanced Raman chemical imaging (SER-CI); Polymorphism; Multivariate analysis
Abstract :
[en] This study demonstrates, for the first time, the ability of surface-enhanced Raman chemical imaging (SER-CI) combined with multivariate analysis to detect low levels (0.1% (w/w)) of a polymorphic form in a pharmaceutical mixture. In the studied formulation, piroxicam was used as a model molecule to develop this approach. Piroxicam is a widely available non-steroidal anti-inflammatory drug, exhibiting an interesting case of polymorphism, with two most commonly observed forms (β and α2). In this work, the SERS spectra of piroxicam polymorphic forms β and α2 are presented. These forms showed clear spectral differences in terms of band position and intensity. From a crystallographic point of view, the difference of exaltation between both forms was correlated with a preferred orientation of crystallites of form α2 making its SERS detection difficult compared to form β. A preferred orientation of the (1k0) crystallographic planes of α2 was demonstrated in samples, not promoting an appropriate molecular orientation onto the metallic surface. Additionally, a semi-quantitative approach using SER-CI combined with chemometric tools was developed enabling to detect crystallites of form β below the detection limit of conventional Raman microscopy. The exaltation of the Raman signal in the presence of silver nanoparticles allowed a higher sensitivity and a reduction of the acquisition time by a factor of 6.
Research center :
CIRM - Centre Interdisciplinaire de Recherche sur le Médicament - ULiège
Disciplines :
Pharmacy, pharmacology & toxicology
Chemistry
Author, co-author :
Cailletaud, Johan 
De Bleye, Charlotte  ;  Université de Liège - ULiège > Département de pharmacie > Département de pharmacie
Dumont, Elodie ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Sacre, Pierre-Yves  ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Gut, Yoann
Leblanc, Nicolas
Letellier, Philippe
Ginot, Yves-Michel
Hubert, Philippe  ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Ziemons, Eric  ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Language :
English
Title :
Detection of low dose of piroxicam polymorph in pharmaceutical tablets by surface-enhanced Raman chemical imaging (SER-CI) and multivariate analysis
Publication date :
25 January 2020
Journal title :
International Journal of Pharmaceutics
ISSN :
0378-5173
eISSN :
1873-3476
Publisher :
Elsevier, Netherlands
Volume :
574
Pages :
118913
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 04 December 2019

Statistics


Number of views
103 (25 by ULiège)
Number of downloads
19 (14 by ULiège)

Scopus citations®
 
8
Scopus citations®
without self-citations
8
OpenCitations
 
4

Bibliography


Similar publications



Contact ORBi