Development of novel polymer-stabilized diosmin nanosuspensions: In vitro appraisal and ex vivo permeation

Scanty solubility and permeability of diosmin (DSN) are perpetrators for its poor oral absorption and high inter-subject variation. This article investigated the potential of novel DSN nanosuspensions to improve drug delivery characteristics. Bottom-up nanoprecipitation technique has been employed f...

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Published inInternational journal of pharmaceutics Vol. 454; no. 1; pp. 462 - 471
Main Authors Freag, May S., Elnaggar, Yosra S.R., Abdallah, Ossama Y.
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 15.09.2013
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Abstract Scanty solubility and permeability of diosmin (DSN) are perpetrators for its poor oral absorption and high inter-subject variation. This article investigated the potential of novel DSN nanosuspensions to improve drug delivery characteristics. Bottom-up nanoprecipitation technique has been employed for nanosuspension development. Variables optimized encompassed polymeric stabilizer type, DSN: stabilizer ratio, excess stabilizer removal, spray drying, and mannitol incorporation. In vitro characterization included particle size (PS), infrared spectroscopy (IR), differential scanning calorimetry (DSC), X-ray powder diffraction (XRD), transmission electron microscope (TEM), scanning electron microscopy (SEM), and dissolution profile. Ex vivo permeation was assessed in rats using non-everted sac technique and HPLC. Optimal DSN nanosuspension (DSN:hydroxypropylmethyl cellulose HPMC 2:1) was prepared with acid base neutralization technique. The formula exhibited the lowest PS (336nm) with 99.9% drug loading and enhanced reconstitution properties after mannitol incorporation. SEM and TEM revealed discrete, oval drug nanocrystals with higher surface coverage with HPMC compared to MC. DSN nanosuspension demonstrated a significant enhancement in DSN dissolution (100% dissolved) compared to crude drug (51%). Permeation studies revealed 89% DSN permeated from the nanosuspension after 120min compared to non-detected amounts from drug suspension. Conclusively, novel DSN nanosuspension could successful improve its dissolution and permeation characteristics with promising consequences of better drug delivery.
AbstractList Scanty solubility and permeability of diosmin (DSN) are perpetrators for its poor oral absorption and high inter-subject variation. This article investigated the potential of novel DSN nanosuspensions to improve drug delivery characteristics. Bottom-up nanoprecipitation technique has been employed for nanosuspension development. Variables optimized encompassed polymeric stabilizer type, DSN: stabilizer ratio, excess stabilizer removal, spray drying, and mannitol incorporation. In vitro characterization included particle size (PS), infrared spectroscopy (IR), differential scanning calorimetry (DSC), X-ray powder diffraction (XRD), transmission electron microscope (TEM), scanning electron microscopy (SEM), and dissolution profile. Ex vivo permeation was assessed in rats using non-everted sac technique and HPLC. Optimal DSN nanosuspension (DSN:hydroxypropylmethyl cellulose HPMC 2:1) was prepared with acid base neutralization technique. The formula exhibited the lowest PS (336nm) with 99.9% drug loading and enhanced reconstitution properties after mannitol incorporation. SEM and TEM revealed discrete, oval drug nanocrystals with higher surface coverage with HPMC compared to MC. DSN nanosuspension demonstrated a significant enhancement in DSN dissolution (100% dissolved) compared to crude drug (51%). Permeation studies revealed 89% DSN permeated from the nanosuspension after 120min compared to non-detected amounts from drug suspension. Conclusively, novel DSN nanosuspension could successful improve its dissolution and permeation characteristics with promising consequences of better drug delivery.
Scanty solubility and permeability of diosmin (DSN) are perpetrators for its poor oral absorption and high inter-subject variation. This article investigated the potential of novel DSN nanosuspensions to improve drug delivery characteristics. Bottom-up nanoprecipitation technique has been employed for nanosuspension development. Variables optimized encompassed polymeric stabilizer type, DSN: stabilizer ratio, excess stabilizer removal, spray drying, and mannitol incorporation. In vitro characterization included particle size (PS), infrared spectroscopy (IR), differential scanning calorimetry (DSC), X-ray powder diffraction (XRD), transmission electron microscope (TEM), scanning electron microscopy (SEM), and dissolution profile. Ex vivo permeation was assessed in rats using non-everted sac technique and HPLC. Optimal DSN nanosuspension (DSN:hydroxypropylmethyl cellulose HPMC 2:1) was prepared with acid base neutralization technique. The formula exhibited the lowest PS (336 nm) with 99.9% drug loading and enhanced reconstitution properties after mannitol incorporation. SEM and TEM revealed discrete, oval drug nanocrystals with higher surface coverage with HPMC compared to MC. DSN nanosuspension demonstrated a significant enhancement in DSN dissolution (100% dissolved) compared to crude drug (51%). Permeation studies revealed 89% DSN permeated from the nanosuspension after 120 min compared to non-detected amounts from drug suspension. Conclusively, novel DSN nanosuspension could successful improve its dissolution and permeation characteristics with promising consequences of better drug delivery.
Scanty solubility and permeability of diosmin (DSN) are perpetrators for its poor oral absorption and high inter-subject variation. This article investigated the potential of novel DSN nanosuspensions to improve drug delivery characteristics. Bottom-up nanoprecipitation technique has been employed for nanosuspension development. Variables optimized encompassed polymeric stabilizer type, DSN: stabilizer ratio, excess stabilizer removal, spray drying, and mannitol incorporation. In vitro characterization included particle size (PS), infrared spectroscopy (IR), differential scanning calorimetry (DSC), X-ray powder diffraction (XRD), transmission electron microscope (TEM), scanning electron microscopy (SEM), and dissolution profile. Ex vivo permeation was assessed in rats using non-everted sac technique and HPLC. Optimal DSN nanosuspension (DSN:hydroxypropylmethyl cellulose HPMC 2:1) was prepared with acid base neutralization technique. The formula exhibited the lowest PS (336 nm) with 99.9% drug loading and enhanced reconstitution properties after mannitol incorporation. SEM and TEM revealed discrete, oval drug nanocrystals with higher surface coverage with HPMC compared to MC. DSN nanosuspension demonstrated a significant enhancement in DSN dissolution (100% dissolved) compared to crude drug (51%). Permeation studies revealed 89% DSN permeated from the nanosuspension after 120 min compared to non-detected amounts from drug suspension. Conclusively, novel DSN nanosuspension could successful improve its dissolution and permeation characteristics with promising consequences of better drug delivery.Scanty solubility and permeability of diosmin (DSN) are perpetrators for its poor oral absorption and high inter-subject variation. This article investigated the potential of novel DSN nanosuspensions to improve drug delivery characteristics. Bottom-up nanoprecipitation technique has been employed for nanosuspension development. Variables optimized encompassed polymeric stabilizer type, DSN: stabilizer ratio, excess stabilizer removal, spray drying, and mannitol incorporation. In vitro characterization included particle size (PS), infrared spectroscopy (IR), differential scanning calorimetry (DSC), X-ray powder diffraction (XRD), transmission electron microscope (TEM), scanning electron microscopy (SEM), and dissolution profile. Ex vivo permeation was assessed in rats using non-everted sac technique and HPLC. Optimal DSN nanosuspension (DSN:hydroxypropylmethyl cellulose HPMC 2:1) was prepared with acid base neutralization technique. The formula exhibited the lowest PS (336 nm) with 99.9% drug loading and enhanced reconstitution properties after mannitol incorporation. SEM and TEM revealed discrete, oval drug nanocrystals with higher surface coverage with HPMC compared to MC. DSN nanosuspension demonstrated a significant enhancement in DSN dissolution (100% dissolved) compared to crude drug (51%). Permeation studies revealed 89% DSN permeated from the nanosuspension after 120 min compared to non-detected amounts from drug suspension. Conclusively, novel DSN nanosuspension could successful improve its dissolution and permeation characteristics with promising consequences of better drug delivery.
Author Freag, May S.
Elnaggar, Yosra S.R.
Abdallah, Ossama Y.
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Keywords Nanocrystals
MC
Permeation
Nanosuspension
Dissolution
DSN
HPMC
Diosmin
methyl cellulose
hydroxypropylmethyl cellulose
Language English
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Snippet Scanty solubility and permeability of diosmin (DSN) are perpetrators for its poor oral absorption and high inter-subject variation. This article investigated...
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SubjectTerms absorption
Animals
Calorimetry, Differential Scanning
cellulose
Chemical Precipitation
Chemistry, Pharmaceutical
Chromatography, High Pressure Liquid
Crystallization
Crystallography, X-Ray
differential scanning calorimetry
Diosmin
Diosmin - chemistry
Diosmin - metabolism
Dissolution
Drug Carriers
Drug Stability
drugs
Excipients - chemistry
high performance liquid chromatography
Hypromellose Derivatives
infrared spectroscopy
Intestinal Absorption
Intestines - metabolism
Kinetics
Male
mannitol
Methylcellulose - analogs & derivatives
Methylcellulose - chemistry
Microscopy, Electron, Scanning
Microscopy, Electron, Transmission
Nanocrystals
Nanoparticles
Nanosuspension
Nanotechnology
neutralization
Particle Size
Permeability
Permeation
Powder Diffraction
Rats
Rats, Wistar
scanning electron microscopy
Solubility
Spectroscopy, Fourier Transform Infrared
spray drying
Technology, Pharmaceutical - methods
transmission electron microscopes
transmission electron microscopy
X-radiation
X-ray diffraction
Title Development of novel polymer-stabilized diosmin nanosuspensions: In vitro appraisal and ex vivo permeation
URI https://dx.doi.org/10.1016/j.ijpharm.2013.06.039
https://www.ncbi.nlm.nih.gov/pubmed/23830765
https://www.proquest.com/docview/1426006756
https://www.proquest.com/docview/1678569299
Volume 454
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