Synthesis, spectral, thermal and antibacterial investigations of mixed ligand complexes of thorium(IV) derived from 8-hydroxyquinoline and some amino acids.

Mixed ligand Th(IV) complexes of the type [M(Q)(L)(NO3)2] x 2 H2O have been synthesized using 8-hydroxyquinoline (HQ) as a primary ligand and N- and/or O- donor amino acids (HL) such as L-lysine, L-aspartic acid and L-cysteine as secondary ligands. The metal complexes have been characterized on the basis of elemental analysis, electrical conductance, room temperature magnetic susceptibility measurements,spectral and thermal studies. The electrical conductance studies of the complexes in DMF in 10(-3) M concentration indicate their non-electrolytic nature.

Production of Alkaline Protease by Solvent-Tolerant Alkaliphilic Bacillus circulans MTCC 7942 Isolated from Hydrocarbon Contaminated Habitat: Process Parameters Optimization.

In the present investigation, a newly isolated organic solvent-tolerant and alkaliphilic bacterial strain was reported from a hydrocarbon (gasoline and diesel) contaminated soil collected from the petrol station, Shirpur (India). The strain was identified as Bacillus circulans MTCC 7942, based on phenotype, biochemical, and phylogenetic analysis of 16S rRNA gene sequence. The capability of Bacillus circulans to secrete an extracellular, thermostable, alkaline protease and grow in the presence of organic solvents was explored.

Synthesis, characterization and antibacterial studies on mixed ligand copper complexes with polydentate ligands.

Mixed ligand Cu(II) complexes of the type [M(Q)(L)]-2H2O have been synthesized using 8-hydroxyquinoline (HQ) as a primary ligand and N- and/or O-donor amino acids (HL) such as L-threonine, L-proline, L-hydroxyproline, L-isoleucine and L-serine as secondary ligands. The metal complexes have been characterized on the basis of elemental analysis, electrical conductance, room temperature magnetic susceptibility measurements, spectral and thermal studies. The electrical conductance studies of the complexes in DMSO (dimethyl sulfoxide) in 10(-3) M concentration indicate their non-electrolytic nature.

Synthesis, characterization and antibacterial activity of mixed ligand dioxouranium complexes of 8-hydroxyquinoline and some amino acids.

Mixed ligand complexes of dioxouranium(VI) of the type [UO2(Q)(L)-2H2O] have been synthesized using 8-hydroxyquinoline (HQ) as a primary ligand and N- and/or O- donor amino acids (HL) such as L-lysine, L-aspartic acid and L-cysteine as secondary ligands. The metal complexes have been characterized on the basis of elemental analysis, electrical conductance, room temperature magnetic susceptibility measurements, spectral and thermal studies. The electrical conductance studies of the complexes in DMF in 10(-3) M concentration indicate their non-electrolytic nature.

Synthesis, antimicrobial and antioxidant activity of some oxindoles.

The present work describes the synthesis and spectral analysis of some new 3(Z)-{4-[4-(arylsulfonyl)piperazin-1-ylbenzylidene)-1,3-dihydro-2H-indol-2-one (5a-j). Ten of the synthesized compounds were screened in vitro against six species of microorganisms, Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli, Pseudomonas aeruginosa, Asperigellus niger and Asperigellus clavatus. Most of the compounds exhibited significant antimicrobial activity.

Design of multispectral reading light for individuals with low vision.

Multicolor multielement LED luminaries have wide applications in decorative, display, and medical domain etc. It can provide light with variable intensity and spectral content. One such application of designing of multispectral reading light for patients having low visual acuities is reported here.

Synthesis, characterization and antibacterial studies on some mixed ligand thorium complexes with N- and O-donor ligands.

Mixed ligand Th(IV) complexes of the type [M(Q)(L)(NO3)2] x 2H2O have been synthesized using 8-hydroxyquinoline (HQ) as a primary ligand and N- and/or O- donor amino acids (HL) such as L-threonine, L-tryptophan and L-isoleucine as secondary ligands. The metal complexes have been characterized on the basis of elemental analysis, electrical conductance, room temperature magnetic susceptibility measurements, spectral and thermal studies. The electrical conductance studies of the complexes in DMF in 10(-3).

Optimization of multi-element LED source for uniform illumination of plane surface.

In many lighting applications at the lux level, full coverage of the target surface, uniformity, and glare are important requirements. In the case of LEDs, luminaire optical output depends upon the source of luminous flux, radiation spatial distribution, geometry of the LED array, and source-to-target distance. One has to optimize these parameters to fulfill the needs of the application and to have an efficient LED luminaire.

Production of lovastatin by wild strains of Aspergillus terreus.

A wild fungal strain of Aspergillus terreus, labeled as PM3, was isolated by using the Candida albicans bioassay and confirmed by 18S r DNA analyses. Lovastatin was produced by submerged and solid state fermentations. Of the 30 isolated fungal strains, 11 showed lovastatin production with Aspergillus terreus PM3 being the best with a yield of 240 mg/L at the 10th day of submerged fermentation.

Synthesis, characterization, and antibacterial studies of mixed ligand dioxouranium complexes with 8-hydroxyquinoline and some amino acids.

Mixed ligand complexes of dioxouranium (VI) of the type [UO(2)(Q)(L)·2H(2)O] have been synthesized using 8-hydroxyquinoline (HQ) as a primary ligand and amino acids (HL) such as L-threonine, L-tryptophan, and L-isoleucine as secondary ligands. The metal complexes have been characterized by elemental analysis, electrical conductance, magnetic susceptibility measurements, and spectral and thermal studies. The electrical conductance studies of the complexes indicate their nonelectrolytic nature.

New benzofuran derivatives as an antioxidant agent.

A series of substituted benzofuran derivatives were synthesized and characterized by spectral data. Some of the synthesized compounds were tested for in vitro antioxidant activity. Some of them have shown very good antioxidant activity.

Kinetic study of hepatic β-glucuronidase in the Indian major carp, Labeo rohita (Hamilton).

Liver is the metabolic factory and contains several valuable enzymes that catalyze biochemical reactions. β-glucuronidase is one of the well-known lysozymes that participates in the carbohydrate metabolism in the tissues of various vertebrates. In the present study, an attempt was made to study the kinetic properties of hepatic β-glucuronidase of the Indian major carp (IMC), Labeo rohita.

In situ kinetics of renal β-glucuronidase in teleost, Labeo rohita (Hamilton).

β-glucuronidase is the lysosomal enzyme that increases in the tissues of animals in response to xenobiotics entering the body. Kidney is one of the organs where all the xenobiotics can be carried along with the blood for filtration, and therefore, this enzyme may be present in large amount. Ours is probably the first attempt in the teleost to study the kinetics of enzyme β-glucuronidase.

Synthesis, spectral and biological studies on some mixed ligand Ni(II) complexes.

Mixed ligand Ni(II) complexes of the type [M(Q)(L) x 2H2O] have been synthesized by using 8-hydroxyquinoline (HQ) as a primary ligand and N- and/or O- donor amino acids (HL) such as L-serine, L-isoleucine, L-proline, 4-hydroxy-L-proline and L-threonine as secondary ligands. The metal complexes have been characterized on the basis of elemental analysis, electrical conductance, room temperature magnetic susceptibility measurements, spectral and thermal studies. The electrical conductance studies of the complexes in methanol at 10(-3) M concentration indicate their non-electrolytic nature.

Removal of basic dye (methylene blue) from aqueous solution by adsorption using Musa paradisica: a agricultural waste.

Adsorbent prepared from Musa paradisica leaves--a low cost bioadsorbent was successfuly used to remove methylene blue from an aqueous solution in batch study. The effect of contact time, adsorbent dosage, pH of solution, initial dye concentration, particle size of adsorbent and kinetics of adsorption was studied. It has been observed that the optimum pH is 8 and adsorbent dosage required is 4 g/L for 97% removal of methylene blue (100 mg/L).

Effect of fumigation and juvenile hormone on oxygen consumption of the larvae of Corcyra cephalonica (Stainton).

Reduced effect of JH-I, JH-II and JH-III on oxygen consumption of II-V instars and increased effect on the oxygen consumption of VI instar larvae suggested that control of corcyra with juvenile hormones could be brought about only when applied to just emerged VI instar larvae. Similarly fumigation of juvenile hormone treated larvae could prove beneficial only at VI instar stage. The possibility of enhancing the effect of fumigant with pretreatment of JH will be futile as even only JH treated VI instar larvae develop into abnormal individuals which die later.

Folk medicine of nasik district (maharashtra), India.

The study concerns the first -hand information on 50 ethnomedicinal plants traditional used by aborigines and rural folks of Nasik district, Maharashtra, for the treatment of various human ailments and disorders. The paper gives botanical identity, local name, family and mode of administration.