Posted by admin on Sep 30, 2016 in |
The natural acid like lemon juice provides mild acidic state which used to catalyzed reaction of primary amine and aldehyde in green solvent like ethanol at room temperature reflux for 1.5 hour gives Schiff bases in good yield. Schiff bases have attracted considerable attention of us due to their significant biological activities 1 like anticancer, antitumor, anti inflammatory agents 4, insecticidal, antibacterial 5, antituberculosis, antimicrobial 2-3, antifungal 5, anti-HIV and metal corrosion inhibition activities of Schiff bases, besides wide range of pharmacological activities. Natural acid is non-polluting and does not employ any lethal materials, quantifying if as a green approach for the synthesis of Schiff bases. Schiff bases also have several types of biological actions such as analgesic and antimalerial 6. They are working as Ligands for complexes of metal ions. Organosilicon complexes with Schiff bases are found to be beneficial in various agricultural applications like fungicides, bactericides, herbicides, acaricides and antifeedants 7. The metal complex of Schiff bases are also of principal significance in analytical chemistry and chemotherapy...
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Posted by admin on Sep 30, 2016 in |
Biofunctionalization of nanoparticles is an advancement of current nanotechnology and biotechnology fields. Developing biocompatible progressive functional materials possess antimicrobial properties could be hopeful for environmentally benevolent applications. Biofunctionalization of nanomaterials is one such topic to produce the non-toxic and more efficient antimicrobial agents. The present study describes a synthesis method of bioactive curcuminaniline functionalized zinc oxide nanoparticles in the eco-friendly methods and comparative studies of those were undertaken against non-functionalized zinc oxide nanoparticles. The synthesis process was carried out through a simple green methodology. Synthesized nanoparticles were analyzed for antibacterial activity by using disc diffusion method against two gram-positive bacteria and two gram-negative bacteria and antifungal activity by using agar well diffusion method against four funguses. Synthesized materials were characterized by UV- Vis, FT-IR, SEM and TEM techniques. The synthesized zinc oxide nanoparticles were in the range of 46 nm and the biofunctonalized nanoparticles were about 100 nm. The antimicrobial activities of those were showed appreciable inhibition zones against S.typhi, B.subtilis, A.niger and T.simii...
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Posted by admin on Sep 30, 2016 in |
Aim of the present study was to compare antianxiety activity of various extracts of Oats (OA), Rice Bran (RB) and Spinach (SP) which are rich in phenolics mainly flavonoids and possesses excellent antioxidant property. Flavonoids are reported to have effect on central nervous system, mainly in anxiety disorders. The activity of various extracts (petroleum ether and hydroalcoholic) of all the three plants was evaluated at different doses (50, 100, 200 mg/kg of body weight) using EPM model of anxiety. The studies were conducted on swiss albino mice, and the test materials were administered per oral route. Results indicated that out of all the prepared extracts of the three selected plants, hydroalcoholic extract of Spinach (Spinacia oleracea) exhibited maximum and significant effect at 200 mg/kg of body weight, the results were comparable to the standard antianxiety drug diazepam (2 mg/kg...
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Posted by admin on Sep 30, 2016 in |
Fexofenadine Hydrochloride (FHCl) is a second generation antihistaminic drug which is used in the treatment of allergic rhinitis and urticaria. It is a BCS class II drug and has high first pass metabolism leading to low oral bioavailability. Drug-inclusion complex with 2HPβCD was prepared by kneading method and characterized for solubility study, FTIR study and in vitro dissolution study. Nine different combinations of polymers to be added were generated by Central Composite Design was used to evaluate dependent parameters by varying the independent variables, HPMC E5 and HPMC K4M and responses were tensile strength, mucoadhesive strength and in vitro diffusion. Films were prepared and evaluated for different parameters and found to be in acceptable limits. Optimized formulation F10 generated from the design showed good tensile strength and mucoadhesive strength and optimum in vitro diffusion results. Drug permeation through porcine oral mucosa at the end of 120 mins was 85.59%. Short term stability studies revealed that formulation was stable after storage for 1...
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Posted by admin on Sep 30, 2016 in |
Candesartan Cilexitil is an angiotensin II receptor antagonist used mainly for the treatment of hypertension. Candesartan cilexitil is a BCS class II drug having low solubility and high permeability. Candesartan Cilexitil is a prodrug which is rapidly converted to the active drug, Candesartan, by ester hydrolysis during absorption from the gastrointestinal tract. The bioavailability of Candesartan Cilexitil is approximately 15% after an oral administration. To increase bioavailability of such drug, solubility and dissolution are important parameters. To increase solubility of candesartan cilexitil, spray drying technique was incorporated with use of Fluidised Bed Processor. Also dissolution rate was improved with the use of appropriate superdisintegrants. Superdisintegrants used are Croscarmellose sodium, Crospovidone and Sodium starch glycolate. Dissolution rate of Candesartan Cilexitil from prepared dispersible tablet was compared with marketed formulation. Results have shown that solubility of Candesartan Cilexitil has been increased and dissolution rate was improved significantly. The transformation of Candesartan Cilexitil from crystalline to amorphous state by spray drying and the use of superdisintegrants are considered among the factors which...
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