Abstract：
:The aim of the present study was to investigate the feasibility of the inclusion of a water-insoluble drug (diazepam, DZ) into solid lipid nanoparticles (SLNs), which offer combined advantages of rapid onset and prolonged release of the drug. This work also describes a new approach to prepare suppositories containing DZ-loaded SLN dispersions, as potential drug carrier for the rectal route. Modified high-shear homogenization and ultrasound techniques were employed to prepare SLNs. The effect of incorporation of different concentrations of Compritol ATO 888 or Imwitor 900K and Poloxamer 188 or Tween 80 was investigated. Results showed that varying the type or concentration of lipid matrix or surfactant had a noticeable influence on the entrapment efficiencies, particle size, and release profiles of prepared SLNs. Differential scanning calorimetry and X-ray diffraction measurements showed that the majority of SLNs possessed less ordered arrangements of crystals than the corresponding bulk lipids, which was favorable for increasing the drug loading capacity. Transmission electron microscopy and laser diffractometry studies revealed that the prepared nanoparticles were round and homogeneous and 60% of the formulations were less than 500 nm. Additionally, SLN formulations showed significant (P < 0.05) prolonged release than DZ solution. The subsequent step encompassed the preparation and evaluation of SLN-based suppositories utilizing SLN formulations that illustrated optimal release profiles. The in vitro release of DZ from the suppositories prepared using DZ-loaded SLN dispersions (equivalent to 2 mg DZ) was significantly (P < 0.05) extended compared to suppositories containing 2 mg DZ free drug.
journal_name
AAPS PharmSciTechjournal_title
AAPS PharmSciTechauthors
Abdelbary G,Fahmy RHdoi
10.1208/s12249-009-9197-2subject
Has Abstractpub_date
2009-01-01 00:00:00pages
211-9issue
1issn
1530-9932journal_volume
10pub_type
杂志文章abstract：:Co-encapsulation of anticancer drugs paclitaxel and imatinib in nanocarriers is a promising strategy to optimize cancer treatment. Aiming to combine the cytotoxic and antiangiogenic properties of the drugs, a liposome formulation targeted to folate receptor co-encapsulating paclitaxel and imatinib was designed in this...
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journal_title：AAPS PharmSciTech
pub_type： 杂志文章
doi：10.1208/s12249-014-0086-y
更新日期：2014-06-01 00:00:00
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journal_title：AAPS PharmSciTech
pub_type： 杂志文章
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journal_title：AAPS PharmSciTech
pub_type： 杂志文章
doi：10.1208/s12249-007-9011-y
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journal_title：AAPS PharmSciTech
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journal_title：AAPS PharmSciTech
pub_type： 杂志文章
doi：10.1208/s12249-016-0497-z
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journal_title：AAPS PharmSciTech
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journal_title：AAPS PharmSciTech
pub_type： 传,历史文章,新闻
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pub_type： 杂志文章,评审
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更新日期：2017-07-01 00:00:00
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pub_type： 杂志文章
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更新日期：2015-08-01 00:00:00
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pub_type： 杂志文章
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