Titre :

Lactulose: a model system to investigate solid state amorphization induced by milling

Auteur(s) :

Ngono Mebenga, Frédéric [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
willart, Jean-François [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Cuello, Gabriel J. [Auteur]
Institut Laue-Langevin [ILL]
Jimenez-Ruiz, Monica [Auteur]
Institut Laue-Langevin [ILL]
Affouard, Frédéric [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Titre de la revue :

Journal of Pharmaceutical Sciences

Numéro :

108

Pagination :

880-887

Date de publication :

2019

Discipline(s) HAL :

Physique [physics]/Matière Condensée [cond-mat]/Systèmes désordonnés et réseaux de neurones [cond-mat.dis-nn]
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]

Résumé en anglais : [en]

In this article, we show that crystalline lactulose can be amorphized directly in the solid state by mechanical milling. Moreover, compared to similar materials, the amorphization kinetics of lactulose is found to be very ...
Lire la suite >In this article, we show that crystalline lactulose can be amorphized directly in the solid state by mechanical milling. Moreover, compared to similar materials, the amorphization kinetics of lactulose is found to be very rapid and the amorphous state thus obtained appears to be very stable against recrystallization on heating. These features make lactulose a model compound for this type of solid state transformation. The ease of crystalline lactulose to be amorphized on milling is explained by comparing elastic constants of lactulose with those of several other disaccharides. These constants have been determined by molecular dynamics simulations. The article also shows how isothermal dissolution calorimetry can be used effectively for the determination of amorphization kinetics during grinding when the usual characterization techniques (differential scanning calorimetry and powder X-ray diffraction) fail.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
ENSCL
CNRS
INRA

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Matériaux Moléculaires et Thérapeutiques

Date de dépôt :

2019-06-17T08:43:30Z
2019-10-16T13:51:47Z
2019-10-16T13:53:50Z
2020-10-16T11:58:36Z