scholarly journals Characterization, in Vivo and in Vitro Evaluation of Solid Dispersion of Curcumin Containing d-α-Tocopheryl Polyethylene Glycol 1000 Succinate and Mannitol

Molecules ◽  
2016 ◽  
Vol 21 (10) ◽  
pp. 1386 ◽  
Author(s):  
Im-Sook Song ◽  
Jin-Sun Cha ◽  
Min-Koo Choi
Keyword(s):  
Polyethylene Glycol ◽  
Solid Dispersion ◽  
In Vitro Evaluation ◽  
Polyethylene Glycol 1000

scholarly journals PENGARUH PENAMBAHAN POLIETILEN GLIKOL 6000 PADA TABLET IBUPROFEN DISPERSI PADAT TERHADAP ABSORBSI IBUPROFEN SECARA IN SITU

2021 ◽  
Vol 3 (3) ◽  
pp. 211-222
Author(s):  
Antetti Tampubolon
Keyword(s):  
Polyethylene Glycol ◽  
Solid Dispersion ◽  
Male Rats ◽  
In Situ Methods ◽  
In Situ Absorption ◽  
Polyethylene Glycol 6000 ◽  
Drug Solution

Drug absorption can be decided by various methods, namely in vitro methods, in situ methods, and in vivo methods. The in situ method is a procedure that is very close to the in vivo method. The aim of this study was to identify the effect of accumulation of polyethylene glycol 6000 (PEG 6000) on solid dispersion of ibuprofen tablets on the in-situ absorption of the drug. This research was conducted through an experiment to determine the effect of adding polyethylene glycol 6000 to the absorption of ibuprofen in situ by flowing the solution from solid dispersion ibuprofen tablets, solutions from generic ibuprofen tablets and standard ibuprofen solutions. The solid dispersion system was carried out by melting ibuprofen and polyethylene glycol 6000 in a ratio of 1:05. The drug solution was flowed through the lumen of the small intestine of male rats. Unabsorbed ibuprofen was measured by an ultraviolet spectrophotometer at a wavelength of 225.5 nm. Next, the absorbed level of ibuprofen was calculated. The results showed that ibuprofen from solid dispersion tablets was absorbed more than ibuprofen from generic tablets and standard ibuprofen. It can be concluded that polyethylene glycol 6000 has an effect on the absorption of ibuprofen in situ.

Co-delivery of Doxorubicin and D-α-Tocopherol Polyethylene Glycol 1000 Succinate by Magnetic Nanoparticles

2018 ◽  
Vol 18 (8) ◽  
pp. 1138-1147 ◽  
Author(s):  
Esra Metin ◽  
Pelin Mutlu ◽  
Ufuk Gündüz
Keyword(s):  
Breast Cancer ◽  
Polyethylene Glycol ◽  
Magnetic Nanoparticles ◽  
Cancer Treatment ◽  
Cancer Cells ◽  
Drug Loading ◽  
Gravimetric Analysis ◽  
Polyethylene Glycol 1000 ◽  
Mcf 7

Background: Although conventional chemotherapy is the most common method for cancer treatment, it has several side effects such as neuropathy, alopecia and cardiotoxicity. Since the drugs are given to body systemically, normal cells are also affected, just like cancer cells. However, in recent years, targeted drug delivery has been developed to overcome these drawbacks. Objective: The aim of this study was targeted co-delivery of doxorubicin (Dox) which is an anticancer agent and D-α-Tocopherol polyethylene glycol 1000 succinate (vitamin E TPGS or simply TPGS) to breast cancer cells. For this purpose, Magnetic Nanoparticles (MNPs) were synthesized and coated with Oleic Acid (OA). Coated nanoparticles were encapsulated in Poly Lactic-co-Glycolic Acid (PLGA) and TPGS polymers and loaded with Dox. The Nanoparticles (NPs) were characterized by Fourier Transform Infrared (FTIR) spectroscopy, zetapotential analysis, Dynamic Light Scattering (DLS) analysis, Thermal Gravimetric Analysis (TGA) and Scanning Electron Microscope (SEM) analysis. Results: The results showed that NPs were spherical, superparamagnetic and in the desired range for use in drug targeting. The targetability of NPs was confirmed. Moreover, TPGS and Dox loading was shown by TGA and FTIR analyses. NPs were internalized by cells and the cytotoxic effect of drug loaded NPs on sensitive (MCF-7) and drug-resistant (MCF-7/Dox) cells were examined. It was seen that the presence of TPGS increased cytotoxicity significantly. TPGS also enhanced drug loading efficiency, release rate, cellular internalization. In MCF- 7/Dox cells, the drug resistance seems to be decreased when Dox is loaded onto TPGS containing NPs. Conclusion: This magnetic PLGA nanoparticle system is important for new generation targeted chemotherapy and could be used for breast cancer treatment after in vivo tests.

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