نتایج جستجو برای: spectroscopic studies

تعداد نتایج: 1463794  

Balachandran Indira Cheruthazhakkat Sulaiman, Sivadasan Pillai Geetha

Objective: Ipomoea mauritiana is used in both Ayurveda and folk medicine systems. The tuberous roots are known to be diuretic, depurative, carminative, and anthelmintic. The objective of the current study was to identify phenolic antioxidants from I. mauritiana using spectrophotometric and LC-MS analysis. Materials and Methods: An activity-guided fractionation and purification process was used t...

S Rajendran, B Uma , K Prabhakar , Y Lakshmi Sarayu ,

Background: Infectious diarrhoea is an emergent problem in both developing and developed countries for high rates of mortality in infants. In recent years, drug resistance to microbial pathogens has been commonly reported from all over the world. Medicinal plants represent a rich source of antimicrobial agents. Plants are used medicinally in different countries especially in India and are a sou...

The purpose of this study is to investigate the interaction of Etofylline as an established drug for asthma remedy, with the major transport protein in human blood circulation, the human serum albumin (HSA). In this respect, the fluorescence and circular dichroism (CD) spectroscopy techniques, along with the molecular docking and molecular dynamics simulation methods were employed. Analysis of ...

Bahram Ghanbari Davar Mohammadi Boghai Massoud Hassanpoor

The complexes of Mn(OAc)3 and/or Mn(acac)3 with nucleic bases and nucleosides (adenine, guanine, xanthine, adenosine and guanosine) have been synthesized in nonaqueous solution. Polarographic and spectroscopic (IR and Visible) methods have been used to establish the active site(s) on the imidazole and pyrimidine rings in the nucleic bases and nucleosides for the intera...

A. Asadipour A. Foroumadi B. Heidary Alizadeh Gh. Dehghan S. Moghimi V. Derakhsh Ahmadi

The binding interaction of novel podophyllotoxin derivative, (3R,4R)-4-((benzo[d][1,3]dioxol-5-yl)methyl)-dihydro-3-(hydroxy(3,4-dimethoxyphenyl) methyl) furan-2(3H)-one (PPT), with calf thymus DNA (ctDNA) has been examined using UV-Visible absorption spectrophotometry, fluorescence spectroscopy, viscosity measurement and molecular docking studies. UV-Vis absorption results showed hyperchromic ...

Journal: Journal of Nanoanalysis 2018

In this study, we were synthesized Fe3O4@LDH@Lamivudine and characterized by FT-IR spectroscopy,XRD and TEM. The interaction of this nanoparticle with CT-DNA was investigated by viscosity, circulardichroism (CD), Uv-Visible and fluorescence spectroscopy. Among all nanocarriers which applied as drugdelivery vectors, layered double hydroxides (LDHs) with exchangeable anions in t...

Afshin Pourahmad, M. Kazemipour

SiO2/ZnS core/shell nanostructures have been synthesized at room temperature by a simple wet chemical method. The prepared materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (IR), UV–vis spectroscopic and transmission electron microscopy (TEM) studies. X-ray diffraction pattern exhibits peaks correspond to the cubic phase of ZnS. Th...

Interactions of cationic tetrakis (N,N´,N´´,N´´´-tetramethyltetra-3,4-pyridinoporphyrazinatocobalt(II) (Co(tmtppa)) with synthetic polynucleotides, poly(A-T), poly(G-C) and calf thymus DNA have been characterized in 5 mM phosphate buffer, pH 7.2, by optical absorption and fluorescence spectroscopy. The appearance of hypochromicity effect and the red shift in UV-Vis spectrum of porphyrazine was ...

In the present paper, we have studied immunglobulin (IgG) of epileptic children, migraineous and paralytic patients.  We have compared our results with normal healthy controls. We found that the bands ranges from 1151.94 to 1168.28 cm-1 due to phospholipids (P-O-C ) group appear in some of the migraineous and paralytic patients only. These bands are absent in normal and epileptic patients. The ...

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