Revathi Ramalingam

• Periyar University PG extension centre

Multiferroic materials of indium-doped bismuth ferrite have been synthesized by the direct combustion method. X-ray diffraction of BiFeO3 and In³⁺-doped BiFeO3 samples revealed the rhombohedral structure. X-ray photoelectron spectroscopy analyses were determined to determine the prepared samples’ chemical elements and oxidation states. Fourier tran...

A green synthesis method is adopted to prepare emerging low cost ZnO (ZNP) and Ca substitute ZnO nanoparticles (CZNP) using Psidium guajava fruit (PGF) extract as an effective reducing and capping agent. An X-ray diffraction study of the synthesized nanoparticles revealed that they have a hexagonal wurtzite structure. The elemental compositions and...

La1-xGdxFeO3 (x = 0 to 0.25) nanoparticles are prepared by microwave combustion process (MCP) with L-alanine as a fuel. The synthesized samples were characterized by XRD, TEM, SAED, XPS, FE-SEM, EDX, FTIR, DRS-UV and VSM analysis. XRD and FT-IR confirmed that lanthanum ferrite has an orthorhombic structure with an average crystallite size ranging f...

where x = 0, 0.1, 0.3, and 0.5) nanoparticles were synthesized by the microwave combustion process. The XRD analysis confirmed the cubic system. The crystallite size of Cd 2+ doped ZnAl 2 O 4 isin the range between 20.82 and 15.12 nm. Fourier transform infrared (FT-IR) spectra are displayed the stretching frequencies. The energy gap values decrease...

Nickel-doped magnesium cubic spinel ferrite nanoparticles (NPs) were prepared through the microwave combustion method (MCM). The structure of magnesium ferrite normal spinel is obtained from XRD analysis. The average crystallite size is between 26 and 17 nm. The elemental compositions and oxidizing states of Ni2+ doped MgFe2O4 ferrites were evaluat...

The aim of this study was to determine the phytochemical profile, antibacterial and antioxidant activities of crude aqueous leaf extracts of Anisomeles malabarica and Coldenia procumbens. The predominant components present in these crude extracts of test plants identified using gas chromatography-mass spectrometry (GC-MS) analysis in both plant ext...

CoAl2O4 and Zn:CoAl2O4 nanoparticles (NPs) were synthesized via microwave combustion process (MCP) and L-alanine used as fuel. The average crystallite size is found in the range of 10–18 nm. Spherical aggregated particle morphology is obtained for synthesized sample and the same confirmed by HR-SEM images and nonexistence of impurities in the prepa...

Utilizing combustion method Mg substituted Co3O4 nanoparticles were prepared using the fuel L-alanine. The formation of the cubic spinel structure in the prepared undoped Co3O4 and Mg substituted Co3O4 is assured by X-ray diffraction (XRD) studies. The average crystallite size was observed to lie within 48.6 nm to 17.3 nm. The microstructural analy...

Magnesium doped cobalt oxide nanoparticles were synthesized via microwave assisted combustion method (MACM). The X-ray diffraction (XRD) patterns of pure Co 3 O 4 and Mg 2+ doped Co 3 O 4 (x = 0.1 and 0.3) confirmed the cubic spinel structure and without any additional impurity peaks. However, doping Mg 2+ concentration, x = 0.3 and 0.5 sample was...

Cancer cells weakened the anti-proliferative nature of chemotherapeutics by mounting molecular, physiological, and enzymatic resistance mechanisms against not only the previously treated drug but also to the structurally different anticancer drugs, a phenomenon termed as multidrug resistance (MDR). Pioneering strategies such as synthesizing new mol...

Umbelliferone (UMB) and v itamin C are naturally available antioxidants with the capacity to inhibit the formation of tumors in several cancer models. In the pres ent study, the authors have investigated if the combination of UMB and v itamin C had any role in lipid metabolism in d iethylnitrosamine (DEN) induced hepatocellular carcinoma (HCC) in r...

Aim Hepatocellular carcinoma (HCC) represents a major source of global mortality, still rising in worldwide. The present study aims at elucidating the antioxidant efficiency of umbelliferone (UMB) in N-Nitrosodiethylamine (DEN) induced rat liver carcinogenesis. Methods Rats were randomly divided into six groups of six rats each as follows. Rats ar...

5-Fluorouracil (5-FU) is one of the widely used chemotherapeutic drugs targeting various cancers including colon cancer, but its chemoresistance remains as a major obstacle in clinical settings. Towards this goal, we evaluated the in vivo efficacy of umbelliferone (UMB) with 5-flurouracil (5-fu) against 1, 2-dimethylhydrazine (DMH) induced colon ca...

This study is designed to evaluate the cardioprotective effect of fenugreek on isoproterenol- induced myocardial infarction and is investigated by an in vivo method in rats. Male Wistar albino rats were divided into four groups (n=10). Group I received 0.5% CMC treated as normal control group. Group II received isoproterenol (85 mg/kg body weight)...

This study reports the in vitro antioxidants, antimicrobial, anti-inflammatory, anthelmintic activity and phytochemical analysis of Indian medicinal spices. The use of medicinal spices or their crude extract provides the unlimited better opportunities to develop the new drugs against infectious diseases. Fresh spices of Quercus infectoria and Papav...