Evaluation of Different Techniques for Size Determination of Drug Nanocrystals: A Case Study of Celecoxib Nanocrystalline Solid Dispersion
Celecoxib (CEL) Nanocrystalline Solid Dispersion (CEL_NCSD) was generated by spray drying CEL, mannitol (MAN) and sodium lauryl sulfate (SLS) from a solvent mixture of methanol, acetone and water. The purpose of the work was to determine the size of CEL nanocrystals, investigate agglomeration and in...
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doaj-76a5a7a6a2774e3bbe32a4eac9f215a22020-11-25T00:04:25ZengMDPI AGPharmaceutics1999-49232019-10-01111051610.3390/pharmaceutics11100516pharmaceutics11100516Evaluation of Different Techniques for Size Determination of Drug Nanocrystals: A Case Study of Celecoxib Nanocrystalline Solid DispersionAmanpreet Kaur0Prashantkumar Khodabhai Parmar1Arvind Kumar Bansal2Solid State Pharmaceutics Lab, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S Nagar, Mohali, Punjab-160062, IndiaSolid State Pharmaceutics Lab, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S Nagar, Mohali, Punjab-160062, IndiaSolid State Pharmaceutics Lab, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S Nagar, Mohali, Punjab-160062, IndiaCelecoxib (CEL) Nanocrystalline Solid Dispersion (CEL_NCSD) was generated by spray drying CEL, mannitol (MAN) and sodium lauryl sulfate (SLS) from a solvent mixture of methanol, acetone and water. The purpose of the work was to determine the size of CEL nanocrystals, investigate agglomeration and inspect dissolution of CEL_NCSD. Size determination was challenging as CEL nanocrystals are embedded in the matrix of MAN. Firstly, neat CEL_NCSD was analyzed using Scherrer equation. Secondly, MAN was dissolved in an aqueous stabilizer medium to selectively measure the size of CEL nanocrystals. Raman Spectra captured in Morphologi G3-ID confirmed the presence of CEL-only particles in the media. This dispersion gave D<sub>90</sub> values of 882 ± 170.34 nm in Zetasizer. Discriminatory dissolution studies confirmed total release of 34.61 ± 1.59%, 47.42 ± 0.24%, and 44.61 ± 1.11% at 120 min from a microsuspension (size 3 µm), a nanosuspension (media milled; size 660 nm) and CEL_NCSD, respectively. The dissolution profile of CEL_NCSD was similar to that of a nanosuspension (f2 72.24) instead of a coarse microsuspension. Thus, the present study revealed that optimized sample preparation is critical for the size determination of embedded drug nanocrystals in NCSD. Further, a discriminatory dissolution study substantiated that the size of CEL nanocrystals in CEL_NCSD is well below 1000 nm, thus showing a size-dependent improved dissolution profile.https://www.mdpi.com/1999-4923/11/10/516celecoxibnanocrystalline solid dispersionagglomeratesaggregatesdiscriminatory dissolution testing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Amanpreet Kaur Prashantkumar Khodabhai Parmar Arvind Kumar Bansal |
spellingShingle |
Amanpreet Kaur Prashantkumar Khodabhai Parmar Arvind Kumar Bansal Evaluation of Different Techniques for Size Determination of Drug Nanocrystals: A Case Study of Celecoxib Nanocrystalline Solid Dispersion Pharmaceutics celecoxib nanocrystalline solid dispersion agglomerates aggregates discriminatory dissolution testing |
author_facet |
Amanpreet Kaur Prashantkumar Khodabhai Parmar Arvind Kumar Bansal |
author_sort |
Amanpreet Kaur |
title |
Evaluation of Different Techniques for Size Determination of Drug Nanocrystals: A Case Study of Celecoxib Nanocrystalline Solid Dispersion |
title_short |
Evaluation of Different Techniques for Size Determination of Drug Nanocrystals: A Case Study of Celecoxib Nanocrystalline Solid Dispersion |
title_full |
Evaluation of Different Techniques for Size Determination of Drug Nanocrystals: A Case Study of Celecoxib Nanocrystalline Solid Dispersion |
title_fullStr |
Evaluation of Different Techniques for Size Determination of Drug Nanocrystals: A Case Study of Celecoxib Nanocrystalline Solid Dispersion |
title_full_unstemmed |
Evaluation of Different Techniques for Size Determination of Drug Nanocrystals: A Case Study of Celecoxib Nanocrystalline Solid Dispersion |
title_sort |
evaluation of different techniques for size determination of drug nanocrystals: a case study of celecoxib nanocrystalline solid dispersion |
publisher |
MDPI AG |
series |
Pharmaceutics |
issn |
1999-4923 |
publishDate |
2019-10-01 |
description |
Celecoxib (CEL) Nanocrystalline Solid Dispersion (CEL_NCSD) was generated by spray drying CEL, mannitol (MAN) and sodium lauryl sulfate (SLS) from a solvent mixture of methanol, acetone and water. The purpose of the work was to determine the size of CEL nanocrystals, investigate agglomeration and inspect dissolution of CEL_NCSD. Size determination was challenging as CEL nanocrystals are embedded in the matrix of MAN. Firstly, neat CEL_NCSD was analyzed using Scherrer equation. Secondly, MAN was dissolved in an aqueous stabilizer medium to selectively measure the size of CEL nanocrystals. Raman Spectra captured in Morphologi G3-ID confirmed the presence of CEL-only particles in the media. This dispersion gave D<sub>90</sub> values of 882 ± 170.34 nm in Zetasizer. Discriminatory dissolution studies confirmed total release of 34.61 ± 1.59%, 47.42 ± 0.24%, and 44.61 ± 1.11% at 120 min from a microsuspension (size 3 µm), a nanosuspension (media milled; size 660 nm) and CEL_NCSD, respectively. The dissolution profile of CEL_NCSD was similar to that of a nanosuspension (f2 72.24) instead of a coarse microsuspension. Thus, the present study revealed that optimized sample preparation is critical for the size determination of embedded drug nanocrystals in NCSD. Further, a discriminatory dissolution study substantiated that the size of CEL nanocrystals in CEL_NCSD is well below 1000 nm, thus showing a size-dependent improved dissolution profile. |
topic |
celecoxib nanocrystalline solid dispersion agglomerates aggregates discriminatory dissolution testing |
url |
https://www.mdpi.com/1999-4923/11/10/516 |
work_keys_str_mv |
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