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Influence of formulation on the size and stability of niosomes

Influence of formulation on the size and stability of niosomes / Nur Syahirah Adibah Pakir
Ciri-ciri potensi kurkumin telah dibebani oleh keterlarutan yang rendah. Hal ini kerana tahap kestabilan yang rendah boleh menyebabkan pelepasan kurkumin yang pesat dalam darah terjadi disebabkan oleh tahap hidrophobisiti dan bioavailabiliti yang rendah. Niosom menonjol sebagai satu penghantaran ubat sistem vesikular bukan ionik yang stabil dan boleh memuatkan kedua-dua hidrophobik dan hidrophilik dadah. Tujuan kajian ini adalah untuk menghasilkan satu formulasi niosomal yang diperolehi dari nisbah campuran Span-60 dan Tween-60 dan kolesterol dengan penambahan dua bahan tambahan (disetilfosfat dan sterilamina) yang dapat meningkatkan sifat biofarmaseutikal yang berbeza. Niosom telah disediakan dengan kaedah penghidratan filem-nipis dan perendaman air dalam sonikator dengan campuran 1:1, 3:1 dan 5:1 antara Tween-60 dan Span-60 dengan kolesterol. Pengaruh nisbah-nisbah ini terhadap tahap kecekapan pemerangkapan (EE %) dan kestabilan telah dikaji. Keputusan kajian telah mendapati bahawa semua nisbah berjaya menghasilkan niosom yang mengandungi kurkumin. Imej bawah penghantaran mikroskop electron (TEM) menunjukkan bahawa vesikular niosom adalah berbentuk sfera. Kecekapan pemerangkapan niosom (EE%) berbeza bagi setiap nisbah iaitu antara 5.04% hingga 11.14% dan pembentukan niosom menggunakan nisbah 1:1 memberikan kecekapan pemerangkapan tertinggi dan stabil berbanding dengan nisbah-nisbah yang lain. Pembentukan niosom paling stabil adalah disimpan di bawah suhu -4°C iaitu di dalam peti sejuk beku. Pembentukan niosom menggunakan nisbah 1:1 dengan penambahan disetilfosfat sangat stabil apabila disimpan di bawah suhu -4°C. Saiz niosom yang mengandungi kurkumin bertambah besar dan agregat antara satu sama lain apabila suhu dan masa penyimpanan niosom semakin meningkat disebabkan oleh pengurangan tahap kestabilan niosom itu sendiri. _______________________________________________________________________________________________________ Potential properties of free curcumin are hampered by poor solubility due to its hydrophobicity and low bioavailability combined with low stability in solution, which resulting in rapid clearance in blood. Niosome stands out as a non-ionic stable drug delivery vesicular system which can accommodate both hydrophobic and hydrophilic drugs. The aim of the present study was to develop niosomal formulations obtained from different ratio between the mixture of Span-60 and Tween-60 and cholesterol with addition of two different additives (dicetylphosphate and stearylamine) that could encapsulate curcumin for increasing its biopharmaceutical properties. The curcumin-loaded niosomes were prepared by using thin-film hydration and sonication in water bath method with 1:1, 3:1 and 5:1 of the mixture between Tween-60 and Span-60 with cholesterol. The influence of formulations on drug entrapment efficiency (EE%) and stability were investigated. It was found out that all ratios of surfactants could produce curcumin-loaded niosome. Transmission Electron Microscope confirmed that the niosomal vesicle were spherical in shape. The entrapment efficiency of the curcumin-loaded niosome varied between 5.04% and 11.14% and formulation of niosome using 1:1 mole ratio gave the highest entrapment efficiency and the most stable than the other two ratio. The most stable formulation was kept under -4 ºC which is formulation of niosomes using 1:1 mole ratio with addition of dicetylphosphate. The size of the curcumin-loaded niosome increased and they started to aggregate when the temperature and time increased due to reduction in stability.
Contributor(s):
Nur Syahirah Adibah Pakir - Author
Primary Item Type:
Final Year Project
Identifiers:
Barcode : 00003103808
Accession Number : 875006379
Language:
English
Subject Keywords:
curcumin; hydrophobicity; low bioavailability
First presented to the public:
6/1/2016
Original Publication Date:
5/16/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 74
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-05-16 17:29:44.72
Date Last Updated
2020-05-06 15:59:45.714
Submitter:
Mohd Jasnizam Mohd Salleh

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Influence of formulation on the size and stability of niosomes1 2018-05-16 17:29:44.72