Bharathiar University

About: Bharathiar University is a education organization based out in Coimbatore, Tamil Nadu, India. It is known for research contribution in the topics: Thin film & Adsorption. The organization has 5812 authors who have published 8628 publications receiving 143934 citations. The organization is also known as: BU.

Electrochemical performances of CoFe2O4 nanoparticles and a rGO based asymmetric supercapacitor

Abstract: CoFe2O4 nanoparticles were prepared using a polyethylene glycol (PEG) assisted solution combustion method. The X-ray diffraction pattern, Fourier transform infrared and Raman spectra revealed the single phase formation of CoFe2O4 particles. Transmission electron microscopy (TEM) images revealed nanosized particles less than 10 nm in size. The calculated voltammetry specific capacitance of the CoFe2O4 electrode was 195 F g−1 at 1 mV s−1. The Power's law suggests the capacitive mechanism is dominant over an intercalation mechanism, while the maximum number of charges accommodated in the inner surface of the electrode, is given by the Trasatti plot. The fabricated rGO based hybrid supercapacitor (CoFe2O4‖rGO) provides a good specific capacitance (38 F g−1) and energy density (12.14 W h kg−1) at 3 mA with good cycle life, and the serially connected asymmetric supercapacitor device powers the light emitting diode for 10 minutes.

The Internet of Things (IoT) Applications and Communication Enabling Technology Standards: An Overview

Abstract: The Internet of Things (IoT) is the most promising area which penetrates the advantages of Wireless Sensor and Actuator Networks (WSAN) and Pervasive Computing domains. Different applications of IoT have been developed and researchers of IoT well identified the opportunities, problems, challenges and the technology standards used in IoT such as Radio-Frequency IDentification (RFID) tags, sensors, actuators, mobile phones, etc. This paper is of two fold, the first fold covers the different applications that adopted smart technologies so far. The second fold of this paper presents the overview of the sensors and its standards.

DNA, protein binding, cytotoxicity, cellular uptake and antibacterial activities of new palladium(II) complexes of thiosemicarbazone ligands: effects of substitution on biological activity.

Abstract: The coordination propensities of 4(N,N′)-diethylaminosalicylaldehyde-4(N)-substituted thiosemicarbazones (H2L1–4) were investigated by reacting with an equimolar amount of [PdCl2(PPh3)2]. The new complexes were characterized by various spectroscopic techniques. The structure determination of the complexes [Pd(DeaSal-tsc)(PPh3)] (1), [Pd(DeaSal-mtsc)(PPh3)] (2) and [Pd(DeaSal-etsc)(PPh3)] (3) by X-ray crystallography showed that ligands are coordinated in a dibasic tridentate ONS donor fashion forming stable five and six membered chelate rings. The binding ability of complexes (1–4) to calf-thymus DNA (CT DNA) has been explored by absorption and emission titration methods. Based on the observations, an electrostatic and an intercalative binding mode have been proposed. The protein binding studies have been monitored by quenching of tryptophan and tyrosine residues in the presence of complexes using lysozyme as a model protein. As determined by MTT assays, complex 3 exhibited a higher cytotoxic effect towards human lung cancer cell line (A549) and liver cancer cells (HepG2). LDH, NO assay and cellular uptake of the complexes have been studied. Further, antibacterial activity studies of the complexes have been screened against the pathogenic bacteria such as Enterococcus faecalis, Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa, MIC50 values of the complexes showed that the complexes exhibited significant activity against the pathogens and among the complexes, 3 exhibited higher activity.

Removal of congo red from aqueous solutions by biogas waste slurry

Abstract: Removal of Congo Red was carried out using biogas waste slurry as adsorbent at different concentrations of dye, adsorbent dosage, agitation time and pH. The process follows the first-order rate expression. The equilibrium data fit well in the Freundlich model of adsorption. Maximum removal of dye, 95%, was observed in the pH range 2.3–9.4. Desorption of Congo Red showed that it is solubilised in 50% acetic acid to the extent of 6% and the remainder appears to be chemically complexed irreversibly to the adsorbent. Low desorption of dye from the adsorbent surface in water indicates that the process may not be, essentially, a reversible one.