Posted by admin on Aug 31, 2019 in |
The aim of the present work was to develop and evaluate the potential of nanostructured lipid carriers (NLCs) loaded with Clobetasol-17-propionate (CP) as a new approach for the topical treatment of psoriasis. CP-loaded NLCs were prepared by melt emulsification and ultra-sonication method and optimized using 33 full factorial designs (Design-Expert software 11.0), by using solid lipid (compritol ATO 888) and liquid lipid (oleic acid) and Tween 80 as a surfactant. Drug loaded NLCs were evaluated for various parameters like particle size, surface charge, polydispersity index, entrapment efficiency, surface morphology, thermal analysis, in-vitro drug release through the skin (Franz diffusion cell), drug deposition study and stability. The optimized formulation has a particle size of 91.2 ± 2.37 nm, the zeta potential of -34.7 ± 1.49 mV, polydispersity index of 0.173 ± 0.035 and entrapment efficiency of 85.4 ± 2.89%. Release study demonstrated prolonged CP release from NLCs following Higuchi release kinetics with r2 = 0.9838, while pure CP suspension showed quicker drug release obeying zero-order kinetics with r2 value of...
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Posted by admin on Aug 31, 2019 in |
Simple, sensitive, cost-effective and selective methods are designed and developed for the oxidative indirect spectrophotometric determination of drugs and pharmaceuticals, viz., Argatrobane Monohydrate (ARG), Bortezomib (BOR), Chloroquine Phospate (CHP), Granisetron HCl (GRA), Ibandronate Sodium (IBA) based on their reactivity towards n-bromo succinamide (NBS in excess). The method is based on the oxidation of drugs by n-bromo succinamide (excess) and estimating the amount of un-reacted NBS by Methyl Orange dye at λmax 508 nm. The calibration curves obeyed Beer’s law over the concentration range of 10-70 µg mL-1 (ARG), 8-56 µg mL-1 (BOR), 6-42 µg mL-1 (CHP), 4-28 µg mL-1 (GRA) & 5-35 µg mL-1 (IBA). This method has been applied for the determination of drugs in their pure form as well as in tablet formulations. Statistical analysis of the results using Student’s t-test for accuracy and F-test for precision revealed no significant difference between the proposed methods and the literature method at the 95% confidence level with respect to accuracy and precision. The method has been validated in terms...
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Posted by admin on Aug 31, 2019 in |
Benzofuranone is a bicyclic ring where a benzene ring fused with a furanone. Synthetic chemistry plays a major in developing a series of potent anti-cancer agents. Bromophenyl acetonitrile was prepared from phenyl acetonitrile by bromination at an alpha position which yielded bromophenyl acetonitrile which was a lachrymator compound. Benzofuranone was synthesized by reacting benzene diols and triols with bromo phenyl acetonitrile yielded an imine derivative are converted to a ketone with treatment with hydrochloric acid then cyclized with sodium acetate. The compounds identity and purity are confirmed by spectral and analytical methods. Benzofuranone derivatives are screened anti-neoplastic activity was performed against human skin cancer cell line G361 at micro molecular concentrations. The compounds IA, IB, ID, IE, IF, IIB, IIC, IIIA, IVB, IVF, VA, VC, VD, VE was found to be with potent activity. These compounds exhibited an excellent activity while compared to reference standard doxorubicin at different micromolar concentrations as such of the synthesized...
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Posted by admin on Aug 31, 2019 in |
The current work defines development of a simple, rapid and precise method based on gas chromatography coupled with Flame Ionization Detector (GC-FID) for the quantitative estimation of diphenhydramine (DPH) present in the marketed formulations following the principles of green analytical chemistry. The analysis was performed using Zebron Phase: ZB-DRUG-1 column with Nitrogen as a carrier gas having a flow rate of 1 ml/min. The injection volume was 1 µL and with the split ratio of 1:10. The retention time of the drug was found to be 4.5 minutes. The developed method was validated according to the ICH guidelines, proving the method to be sensitive towards the analyte with accuracy (mean recovery = 98%), linearity in the range of 2-10 µg/ml (r2 0.993), precision (intraday = 1.118% RSD, interday = 1.16 % RSD), LOD 0.2 µg/ml and LOQ 0.5 µg/ml. The degradation study showed that the drug remains stable in acid, base, neutral, oxidation, and photolytic method. The developed method can be effectively employed for the day to day analysis...
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Posted by admin on Aug 31, 2019 in |
Selecting the best possible design is an uphill task considering a lot of criteria which must be scrutinized while choosing any design out of many alternative design options available. The experimental design is often compared and selected based on alphabetical design optimality criteria, like A, D, G or V. Each of them attempts to summarize any one important characteristic of the selected design. G-optimality criteria favor those experimental designs which are having the smallest maximum prediction variance over the entire region of interest. It does not consider the distribution of the magnitude of the prediction variance throughout the region. Graphical methods like variance dispersion graph and the fraction of design space plots can be used to overcome this drawback. These graphical methods are explored extensively for comparing the quality of prediction throughout the design space. It serves as a useful tool to assess the prediction performance of the design and making a comparison between experimental designs. The fraction of the design space plot provides a comprehensive picture of the...
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