Pharmacological studies of zinc oxide nanoparticles

500-505In this paper, we focused on the synthesis and characterization of zinc oxide nanoparticles by using a chemical method. The characterization of Zinc oxide Nanoparticles are determined by different spectroscopic techniques such as UV-Visible, DRS, FTIR, FESEM, and EDX. Further, the antimicrobial activity and cytotoxic studies also performed towards different bacterial species like Bacillus subtilis, Escherichia coli, fungi like Aspergillus niger and MCF-7 Breast Cancer cell line

Pharmacological studies of Zinc oxide Nanoparticles

In this paper, we focused on the synthesis and characterization of zinc oxide nanoparticles by using chemical method. The characterization of Zinc oxide Nanoparticles are determined by different spectroscopic techniques such as UV-VISIBLE, DRS, FT-IR, FE­SEM, and EDX. Further the antimicrobial activity and cytotoxic studies also performed towards different bacterial species like Bacillus subtilis, Escherichi coli, fungi like Aspergillus niger and MCF-7 Breast Cancer cell line

Pharmacological studies of zinc oxide nanoparticles

In this paper, we focused on the synthesis and characterization of zinc oxide nanoparticles by using a chemical method. The characterization of Zinc oxide Nanoparticles are determined by different spectroscopic techniques such as UV-Visible, DRS, FTIR, FESEM, and EDX. Further, the antimicrobial activity and cytotoxic studies also performed towards different bacterial species like Bacillus subtilis, Escherichia coli, fungi like Aspergillus niger and MCF-7 Breast Cancer cell line

Evaluation of antiproliferative potential of manganese (II)-dafone complex

Cytotoxicity is the quality of being toxic to cells. In vitro toxicity is the scientific analysis of the effect of toxic chemical substances on cultured bacteria or mammalian cells. In our work Manganese–4,5-Diazafluoren-9-one complex was prepared and its cytotoxicity was studied by standard MTT Assay in Cervical carcinoma cells HeLa. The result was compared with the normal fibroblast cell to check its influence on normal cells. On comparing the results, the complex is found to be more toxic to cervical carcinoma cells than the normal fibroblast cells. The photocatalytic activity of the complex was studied on the basis of the decomposition reaction of methylene blue dye in presence of the complex. The compound [Mn(C11H6N2O)2(NCS)2] was synthesised and characterised by various spectroscopic methods and the structure was confirmed by single crystal XRD analysis. The molecular structure of the complex was optimized using density functional theory (DFT) at the B3LYP/6–311 G (d,p) level. The smallest HOMO–LUMO energy gap (0.66 eV) indicates the soft acid nature of the complex

RP-HPLC (STABILITY-INDICATING) BASED ASSAY METHOD FOR THE SIMULTANEOUS ESTIMATION OF DORAVIRINE, TENOFOVIR DISOPROXIL FUMARATE AND LAMIVUDINE

Objective: In this study, a RP-HPLC (stability-indicating) based assay method for the estimation of doravirine (DRV), tenofovir disoproxil fumarate (TFF) and lamivudine (LMV) simultaneously in the tablets was described. Methods: The simultaneous analysis of DRV, TFF and LMV was done with HPLC system (Agilent 1100 series) and Luna Phenomenex C18 (250 mm × 4.6 mm × 5 μ) column with isocratic mobile phase (35% volume ratio of methanol and 65% volume ratio of 20 mmol ammonium formate, pH 5). Validation of assay method was done on sensitivity, linearity, accuracy, selectivity, precision, robustness and specificity. Results: The calibration curves were linear through the range of 25-200 µg/ml for DRV and 75-600 µg/ml for TFF and LMV. The percent relative standard deviation for intraday variation/precision, interday variation/precision, intermediate precision/ruggedness and robustness were lower than 2%. The recovery of LMV (99.09-99.76%), TFF (99.10-99.41%) and DRV (98.65-99.28%) confirmed the good accuracy. The stability of LMV, TFF and DRV in 0.1N NaOH, 3% peroxide, 0.1 N HCl, UV light and dry heat of 60 °C was determined. Conclusion: The results have allowed the method to be implemented in the tablets to quantify DRV, TFF, and LMV

Metallopharmaceuticals: Synthesis, characterization and bio-active studies

325-329Riboflavin can be described as a biological chelating ligand due to the existence of nitrogen and oxygen atoms on its structure that can act as coordinating sites for metal ion on chelation. Co (II) with Riboflavin have been synthesized and characterized by IR, LC-MS, UV, TG-DTA confirms the coordination of ligand. Complex is screened for Anti-microbial activity and Cytotoxicity

Metallopharmaceuticals: Synthesis, characterization and bio-active studies

Riboflavin can be described as a biological chelating ligand due to the existence of nitrogen and oxygen atoms on its structure that can act as coordinating sites for metal ion on chelation. Co (II) with Riboflavin have been synthesized and characterized by IR, LC-MS, UV, TG-DTA confirms the coordination of ligand. Complex is screened for Anti-microbial activity and Cytotoxicity

Potential removal of phenol using modified laterite adsorbent

Phenol is a notorious persistent bioaccumulative toxic substance. Being a primary pollutant, phenol has to be removed completely due to its toxicity even at low concentrations. Now-a-days the use of low cost adsorbents for the effective removal of contaminants from waste water poses a big challenge to the researchers. Modified laterite, a cheap and effective adsorbent was chosen as the adsorbent in the present study. The experiments were carried out to identify optimum values of different parameters that influence the process such as contact time, pH, initial concentration and adsorbent dosage etc. The kinetics of the adsorption process were also studied and found that pseudo second order model was the good fit. Three different isotherm models, viz., Langmuir, Freundlich and Temkin were applied and observed that Freundlich model was obeyed with good agreement. The investigation shows that modified laterite as a low cost adsorbent, can efficiently remove phenol from waste water

Potential removal of phenol using modified laterite adsorbent

613-619Phenol is a notorious persistent bioaccumulative toxic substance. Being a primary pollutant, phenol has to be removed completely due to its toxicity even at low concentrations. Now-a-days the use of low cost adsorbents for the effective removal of contaminants from waste water poses a big challenge to the researchers. Modified laterite, a cheap and effective adsorbent was chosen as the adsorbent in the present study. The experiments were carried out to identify optimum values of different parameters that influence the process such as contact time, pH, initial concentration and adsorbent dosage etc. The kinetics of the adsorption process were also studied and found that pseudo second order model was the good fit. Three different isotherm models, viz., Langmuir, Freundlich and Temkin were applied and observed that Freundlich model was obeyed with good agreement. The investigation shows that modified laterite as a low cost adsorbent, can efficiently remove phenol from waste water