SYNTHESIS, CHARACTERIZATION AND IN VITRO MICROBIAL EVALUATION OF REGIOISOMERS OF ALLYL PHENYL ETHERS DERIVED 1, 2, 4-TRIAZOLES

Objective: Synthesis and antimicrobial evaluation of regioisomers of allyl phenyl ethers derived 1, 2, 4-triazoles. Methods: A series of new 1,2,4-triazole derivatives of allyl phenyl ethers were synthesized by reacting a mixture of regio isomers 1-(3-bromo-2-methoxypropoxy)-arene and 1-(2-bromo-3-methoxypropoxy)-arene with 1,2,4-triazole in presence of K2CO3 and DMF at 80oC in good yields. Allyl phenyl ethers 1(a-f) were synthesized by refluxing the substituted phenols with allyl bromide in the presence of K2CO3 and acetone in excellent yields. The newly synthesized compounds were characterized by IR, 1HNMR, Mass spectral studies and elemental analysis. These compounds were also screened for their In-vitro antibacterial and antifungal activities. Results: Allyl phenyl ethers derived 1,2,4-triazol derivatives were synthesized in good yields. Conclusion: Preliminary results revealed that some of the synthesized compounds were showed promising antibacterial and antifungal activity

SYNTHESIS, CHARACTERIZATION AND IN VITRO ANTIMICROBIAL EVALUATION OF SOME NEW AMIDES OF THIOMORPHOLINE CARBOXYLATE

Objective: Synthesis and antimicrobial evaluation of some new amides of Thiomorpholine caboxylate.Methods: A series of new amides of Thiomorpholine caboxylate were synthesized by reacting 4-tert-butyl 2-methyl thiomorpholine-2,4-dicarboxylate 1,1-dioxide with primary amines in presence of Trimethyl aluminum in toluene at ambient temperature in good yields. 4-tert-butyl 2-methyl thiomorpholine-2,4-dicarboxylate 1,1-dioxide was synthesized by reacting tert-butyl thiomorpholine-4-carboxylate 1,1-dioxide with methyl chloroformate in presence of LiHMDS (1M in THF) at -78oC for the first time. The newly synthesized compounds were characterized by IR, 1HNMR, 13C NMR, Mass spectral studies and elemental analysis.Results: A series of new amides of Thiomorpholine carboxylate were synthesized in good yields and all the compounds were screened for their In-vitro antimicrobial activities. Conclusion: Preliminary results revealed that the synthesized compounds were showed moderate to good antibacterial and antifungal activity

GANODERMA LUCIDUM-ORIENTAL MUSHROOM MEDIATED SYNTHESIS OF GOLD NANOPARTICLES CONJUGATED WITH DOXORUBICIN AND EVALUATION OF ITS ANTICANCER POTENTIAL ON HUMAN BREAST CANCER MCF-7/DOX CELLS

Objective: The present investigations are to mycosynthesis and characterization of gold nanoparticles conjugated with doxorubicin and evaluated anticancer activity.Methods: The characterization of the gold nanoparticles using ultraviolet–visible spectroscopy. FTIR investigations were carried out to find and read the functional group responsible designed at the bioconversion of gold ions and crystalline arrangement of gold nanoparticles was detected in the XRD study. The gold nanoparticles conjugated with doxorubicin were treated against MCF-7-dox resisted breast cancer cells and observed the in vitro cytotoxicity by MTT assay, SCGE (Comet), Apoptosis and Mito-potential assay. Further more we determinate the mRNA expression of ABCB1 gene and cDNA was synthesized from the mRNA for amplification of the ABCB1 gene corresponding to the specific primer.Results: Surface Plasmon resonance showed the development of gold nanoparticles in UV–Visible spectra at 537 nm. The synthesized gold nanoparticles were polydisperse spherical and it was determined by EDAX and stabilized in the solution to the spherical shapes further confirmed by High-resolution transmission electron microscope analysis designate in the reading of 2–100 nm. The anticancer assays were given significant results and the mRNA expression of ABCB1 gene and cDNA was amplified as directly proportional to the expression of ABCB1 gene.Conclusion: We propose that gold nanoparticles synthesized and conjugated with doxorubicin from G. lucidum might be a significant resource of drug delivery for anti-cancer preparation that may advantage breast cancer treatment

Characterization of Calcium Phosphate Chitosan Nanocomposite as Plant Growth Promoter

In this study, calcium phosphate-chitosan nanocomposite (CaP-CS NC) was prepared by a convenient and affordable co-precipitation method, and the prepared NC was tested for agriculture application.  Physico-chemicals analyses of the CaP-CS NC were conducted by X-ray diffraction (XRD), scanning electron microscope with energy dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FTIR), and ultraviolet-visible spectroscopy (UV-Vis) instruments to determine the structural characteristics, surface topology, chemical composition, function group, and optical properties. The XRD pattern of CaP-CS NC revealed that the average crystallite size was 43 nm. The SEM images showed agglomeration of the CaP-CS NC with a rod-like shape. The EDS spectrum of the CaP-CS NC indicated the presence of Ca, P, O, and N elements. FTIR displayed vibrational peaks for the active functional group such as carboxylic (C=O), amines (N-H), hydroxyl (O-H), and alkyne (C-H). Furthermore, the spectrum of CaP-CS NC showed the bending mode of phosphates at 588.37 cm-1 and 508.45 cm-1. The UV-Vis-NIR spectrum of the prepared nanocomposite indicates the anti-reflection properties, which might be useful in solar cell applications to increase the efficiency of the solar cell. In addition, the prepared CaP-CS NC was tested for the plant growth stimulator properties at the lab scale level, wherein it exhibited substantial growth. Accordingly, the current study suggests that the prepared CaP-CS NC could be used as a plant growth promoter

VALIDATED COLORIMETRIC METHODS FOR THE ESTIMATION OF TENELIGLIPTIN IN TABLETS

Two simple sensitive and precise methods A and B were developed for the estimation of teneligliptin in bulk drug as well as in pharmaceutical dosage form. Method A is based on the formation of a red colored chromogen by reaction of teneligliptin with potassium thiocyanate in presence of ferric chloride, which has an absorption maximum at 554nm.   Method B is based on the formation of an orange colored complex by complexation reaction of teneligliptin with 2, 2’- bipyridyl in the presence of ferric chloride which has an absorption maximum at 421nm. The proposed methods are statistically validated and found to be useful for the routine determination of teneligliptin in tablets. Keywords: Teneligliptin, Colorimetry, Tablets, ValidationÂ