I.
Caraballo, M. Millan and A.M. Rabasco, Relationship between drug percolation
threshold and particle size in matrix tablets, Pharm. Res., 13, (3), 387-390
(1996).
I.
Caraballo, L.M. Melgoza, J. Alvarez-Fuentes, M.C. Soriano and A.M. Rabasco,
Design of controlled release inert matrices of naltrexone hydrochloride based
on percolation concepts, Int. J. Pharm., 181, 23-30 (1999).
I.
Caraballo, M. Millan, A. Fini, L. Rodriguez and C. Cavallari, Percolation
thresholds in ultrasound compacted tablets, J. Controlled Release, 69, 345-355
(2000).
I.
Caraballo, Improvement on the release control using Ultrasound Assisted Compression.
Eurand Award 2001 “for Outstanding Novel Research in Oral Drug Delivery”.
Organised by Eurand and the Controlled Release Society. 28th Meeting of the
Controlled Release Society, San Diego, California, June 26, 2001.
A.L.
Efros. Física y Geometría del desorden. Ed. Hayka. Moscow, pp. 144-147 (1994).
A.
Fini, M.J. Fernández-Hervás, M.A. Holgado, L. Rodriguez, C. Cavallari, N.
Passerini and O. Caputo, Fractal analysis of beta-cyclodextrin-indomethacin
particles compacted by ultrasound, J. Pharm. Sci., 86,1303–1309 (1997).
J.-L.
H. Gueret. Process for the compaction of a powder mixture providing an absorbent
or partially friable compact product and the product obtained by this process,
U.S. Patent 5,211,892, 1993.
J.M.
Hammersley. Percolation processes. Lower bounds for the critical probability.
Ann. Math. Statist., 28, 790-795 (1957).
L.E.
Holman and H. Leuenberger, The relationship between solid fraction and mechanical
properties of compacts - the percolation theory model approach, Int. J. Pharm.,
46, 35-44 (1988).
W.
Kromp, P. Trimmel, F. B. Prinz, and J. C. Williams, Vibratory compaction of
metal powders, Mod. Dev. Powder Metall., 15, 131–141 (1985).
M.
Kuentz and H. Leuenberger, Modified young’s modulus of microcrystalline cellulose
tablets and the directed continuum percolation model. Pharm. Dev. and Technol.,
3, (1), 1–7 (1998).
H.
Leuenberger and B. D. Rohera. Fundamentals of powder compression. II. The
compression of binary powder mixtures. Pharm. Res., 3, 65–74 (1986).
H.
Leuenberger, Orden en sistemas farmacéuticos complejos formados por medios
desordenados, Anales de la Real Academia de Farmacia, (1999).
H.
Leuenberger, B.D. Rohera and C. Haas, Percolation theory - a novel approach
to solid dosage form design, Int. J. Pharm., 38, 109 - 115 (1987).
H.
Leuenberger, M. Usteri, G. Imanidis and S. Winzap. Monitoring the granulation
process: granulate growth, fractal dimensionality and percolation threshold.
Boll. Chim. Farm., 128, 54-61 (1989a).
H.
Leuenberger, M. Usteri, G. Imanidis and S. Winzap. Percolation Theory, Fractal
Geometry, and Dosage Form Design. Pharm. Acta Helv. 64:34-39 (1989b).
M.
Levina, M.H. Rubinstein, A.R. Rajabi-Siahboomi, Principles and Application
of Ultrasound in Pharmaceutical Powder Compression, Pharm. Res., 17, (3),
257-265 (2000).
L.M.
Melgoza, I. Caraballo, J. Alvarez-Fuentes, M. Millan and A.M. Rabasco, Study
of morphine hydrochloride percolation threshold in Eudragit® RS-PM matrices,
Int. J. Pharm., 170, 169-177 (1998).
L.M.
Melgoza, A.M. Rabasco, H. Sandoval and I. Caraballo, Estimation of the percolation
thresholds in dextromethorphan hydrobromide matrices, Eur. J. Pharm. Sci.,
12, (4), 453-459 (2001).
M.
Millán, Estudio del Umbral de Percolación para la optimización de matrices
inertes de liberación controlada, Ph.D. Thesis, University of Seville, April
(1998a).
M.
Millan, I. Caraballo, A.M. Rabasco, The role of the drug/excipient particle
size ratio in the percolation model for tablets. Pharm. Res., 15, (2), 216-220
(1998b).
G.
Motta. Process for preparing controlled release pharmaceutical forms and the
forms thus obtained, Int. Patent WO 94/14421, 1994.
L.
Rodriguez, M. Cini, C. Cavallari, N. Passerini, M. F. Saettone, A. Fini, and
O. Caputo. Physico-chemical properties of some materials compacted using an
ultrasound-assisted tableting machine. In 16th Int. Conf. Pharm. Tech., Vol.
I, pp. 267–278 (1997).
L.
Rodriguez, M. Cini, C. Cavallari, N. Passerini, M. Fabrizio Saettone, A. Fini
and O. Caputo, Evaluation of theophylline tablets compacted by means of novel
ultrasound-assisted apparatus, Int. J. Pharm., 170, 201–208 (1998).
P.
Sancin, O. Caputo, C. Cavallari, N. Passerini, L. Rodriguez, M. Cini and A.
Fini, Effects of ultrasound-assisted compaction on ketoprogen/ Eudragit S100
mixtures, Eur. J. Pharm. Sci., 7, 207–213 (1999).
D.
Stauffer and A. Aharony. Introduction to Percolation Theory, 2nd ed., Burgess
Science Press, London, 1992. R. Zallen. Percolation: a model for all seasons.
In G. Deutscher,
R.
Zallen and J. Adler (eds.), Percolation structures and processes, Adam Hilger,
Bristol; The Israel Physical Society, Jerusalem; The American Institute of
Physics, New York, 1983, pp 3-16.