Solvent

Measurement of glutathione Glutathione (GSH) is a ubiquitous tripeptide which serves several vital functions including detoxifying electrophiles, scavenging free radicals and providing a reservoir for cysteine. The sulfhydryl group of GSH reduces 5-5'-dithiobis (2-nitrobenzoic acid) (DTNB) and form the yellow colour product 5-thio-2-nitrobenzoic acid (TNB)21. Measurement of the absorbance of TNB at 412 nm provides an accurate estimation of GSH in the sample. Figure 7. Materials 5×105 cells/mL…

Abstract: A one dimensional variable range hopping type conduction is observed in Poly (3,4-ethylenedioxythiophene): polystyrenesulfonate (PEDOT : PSS) films and the mechanism behind enhancement in conductivity in 3% dimethyle sulfoxide (DMSO) doped PEDOT:PSS film is due to the phase segregation of PSS on the surface and reduction of energy barrier between the conducting grains. Enhanced conductivity of PEDOT:PSS films and transparency more than 80% in the visible region makes PEDOT:PSS films…

Scheme 11: Synthesis of 3h & 3i from 2a-i. Compounds: 3h : 7-Hydroxy-3-(4-methoxybenzyl)chromanone(Dihydrobonducelin) R1=OH, R2=R3=H,R4=OCH3 3i : 7-Hydroxy-3-(2,4-dimethoxybenzyl)chromanone (2’-Methoxydihydrobonducellin) R1=OH,R3=H,R2=R4=OCH3 Antioxidant activity of above synthesized derivatives were studied, on that basis 3-benzylchromones with phenolic hydroxyl group (2h & 2i) showed highest activity than com-pound with methoxyl group (2e & 2g) because double bond between C2-C3 done major…

For the synthesis of P2, a mixture of 1 (500 mg, 0.553 mmol), 2 (252 mg, 0.553 mmol), 3 (760 mg, 1.105 mmol), tris(o-tolyl)phosphine (P(o-tol)3) (13 mg, 0.044 mmol), and tris(dibenzylidene acetone)dipalladium(0) (Pd2(dba)3) (10 mg, 0.011 mmol) in anhydrous chlorobenzene (21 mL) was charged in a 100 mL round bottom flask. The resulting reaction mixture was heated at 150 °C under stirring for 3 days. Compound (2) (38 mg, 0.083 mmol) was added and stirred at 150 °C for 1 h. To that…

2.1 Polydimethylsiloxane (PDMS) Polydimethylsiloxane (PDMS) own to a group of polymeric organosilicon compounds that are commonly stated as silicones. PDMS is optically clear, and, in general, non-flammable, non-toxic, and inert. PDMS is viscoelastic, meaning that at long flow times (or high temperatures), it acts like a viscous liquid such as honey. However, at short flow times (or low temperatures), it acts like an elastic solid such as rubber. In other words, PDMS will flow to cover the…

The variable located at the left side of the diagram, the effect of malunggay and ginger root extracts is the independent variable which in being manipulated for the dependent variable, the time spent in treating the sample infected by trichophyton rubrum. The main purpose of this study is to produce an organic antibacterial treatment for Trichophyton rubrum using Malunggay (Moringa oleifera) and Ginger (Zingiber officinale). Specifically, this study aims to answer the following: 1. In which…

Synthesis of PEG-RAFT agent The synthesis of the macro PEG -RAFT agent, Chain Transfer Agent (CTA), was performed by esterification method. Briefly, RAFT agent (0.4 g, 1.5 mmol) and dihydroxyl PEG (2g, 0.5 mmol) were dissolved in 35 mL of DCM in a 250 mL round bottom flask equipped with a magnetic stirrer. Then, it was placed in an ice bath (0 ºC); Next, DCC (0.25 g, 1.2 mmol) and DMAP (0.015 g, 0.12 mmol) were added. After 30 min of stirring at 0 °C, the reaction temperature is elevated to room…

REACTIONS OF ALDEHYDES AND KETONES ABSTRACT The difference between aldehydes and ketones is by having a hydrogen atom attached to the carbonyl group. This makes the aldehydes very easy to oxidize. Ketones do not have that hydrogen atom and are resistant to oxidation. They are only oxidized by powerful oxidizing agents which have the ability to break the carbon-carbon bonds. This report is about the reactions of aldehydes and ketones. This was done to determine how they react when different…

3.7 ANALYTICAL METHOD FOR ESTIMATION OF RALOXIFENE HYDROCHLORIDE IN HIGH PERFORMANCE LIQUID CHROMATOGRAPHY USING ACETONITRILE:0.05M AMMONIUM ACETATE (33:67) AS MOBILE PHASE 3.7.1 For Plain Drug Estimation Mode Reverse Phase HPLC Column C18 Detector UV Spectrophotometer Mobile Phase 0.05M Ammonium Acetate (pH 4): Acetonitrile Sample Raloxifene Hydrochloride in Methanol HPLC Flow Rate 1 mL/min Injection Volume 20µL Retention Time 4.6 min Λmax 289nm A stock solution of Raloxifene Hydrochloride was…

Multiferroic composite of 0.2 LNMFO + 0.8 BFO with LNMFO as ferrimagnetic and BFO as ferroelectric phase were prepared by the standard solid state reaction method. To prepare BFO stoichiometric amounts of high purity Bi2O3, and Fe2O3 were weighed and mixed thoroughly in acetone media for 5–6 h. The mixed powder of BFO was calcined at 800 °C in a closed alumina crucible for 4 h and then pre-sintered at 850°C for 4 h. High purity Li2CO3, NiO, MnCO3 and Fe2O3 were mixed in stoichiometric amounts to…