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Molecules 2012, 17(11), 13221-13234; doi:10.3390/molecules171113221
Article

Preparation of Candesartan and Atorvastatin Nanoparticles by Solvent Evaporation

1,2,* , 3,4, 3, 1,5 and 1,5,*
Received: 8 October 2012; in revised form: 31 October 2012 / Accepted: 2 November 2012 / Published: 6 November 2012
(This article belongs to the Section Medicinal Chemistry)
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Abstract: The solubility, absorption and distribution of a drug are involved in the basic aspects of oral bioavailability Solubility is an essential characteristic and influences the efficiency of the drug. Over the last ten years, the number of poorly soluble drugs has steadily increased. One of the progressive ways for increasing oral bioavaibility is the technique of nanoparticle preparation, which allows many drugs to thus reach the intended site of action. Candesartan cilexetil and atorvastatin, belonging to class II of the biopharmaceutical classification system, were chosen as model active pharmaceutical ingredients in this study. Forty samples were prepared either by antisolvent precipitation/solvent evaporation method or by the emulsion/solvent evaporation technique with various commonly used surface-active excipients as nanoparticle stabilizers. All samples were analyzed by means of dynamic light scattering. The particle size of the determined 36 nanoparticle samples was to 574 nm, whereas 32 samples contained nanoparticles of less than 200 nm. Relationships between solvents and excipients used and their amount are discussed. Based on the results the investigated solvent evaporation methods can be used as an effective and an affordable technique for the preparation of nanoparticles.
Keywords: candesartan cilexetil; atorvastatin; nanoparticles; solvent evaporation; excipients; dynamic light scattering candesartan cilexetil; atorvastatin; nanoparticles; solvent evaporation; excipients; dynamic light scattering
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Vaculikova, E.; Grunwaldova, V.; Kral, V.; Dohnal, J.; Jampilek, J. Preparation of Candesartan and Atorvastatin Nanoparticles by Solvent Evaporation. Molecules 2012, 17, 13221-13234.

AMA Style

Vaculikova E, Grunwaldova V, Kral V, Dohnal J, Jampilek J. Preparation of Candesartan and Atorvastatin Nanoparticles by Solvent Evaporation. Molecules. 2012; 17(11):13221-13234.

Chicago/Turabian Style

Vaculikova, Eliska; Grunwaldova, Veronika; Kral, Vladimir; Dohnal, Jiri; Jampilek, Josef. 2012. "Preparation of Candesartan and Atorvastatin Nanoparticles by Solvent Evaporation." Molecules 17, no. 11: 13221-13234.


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