Cyanobacterial chlorophyll as a sensitizer for colloidal TiO2.

Chlorophyll has been extracted from cyanobacteria. The adsorption of chlorophyll on the surface of colloidal TiO(2) through electrostatic interaction was observed. The apparent association constant (K(app)) of chlorophyll-TiO(2) obtained from absorption spectra is 3.

Growth of hydroxyapatite on physiologically clotted fibrin capped gold nanoparticles.

The growth of hydroxyapatite (HAp) on physiologically clotted fibrin (PCF)-gold nanoparticles is presented for the first time by employing a wet precipitation method. Fourier transform infrared (FTIR) spectroscopy confirmed the characteristic functionalities of PCF and HAp in the PCF-Au-HAp nanocomposite. Scanning electron microscopy (SEM) images have shown cuboidal nanostructures having a size in the range of 70-300 nm of HAp, whereas 2-50 nm sized particles were visualized in high-resolution transmission electron microscopy (TEM).

Biological treatment of tannery wastewater by using salt-tolerant bacterial strains.

Background: High salinity (1-10% w/v) of tannery wastewater makes it difficult to be treated by conventional biological treatment. Salt tolerant microbes can adapt to these saline conditions and degrade the organics in saline wastewater.

Results: Four salt tolerant bacterial strains isolated from marine and tannery saline wastewater samples were identified as Pseudomonas aeruginosa, Bacillus flexus, Exiguobacterium homiense and Staphylococcus aureus.

Nevus of Ota: a series of 15 cases.

Background: The nevus of Ota is a dermal nevus characterized by bluish pigmentation in the distribution of the first and the second division of the trigeminal nerve.

Aim: Our aim was to study the cutaneous and extracutaneous manifestations of the nevus of Ota.

Methods: A total of 15 cases were included in our study.

Preparation and partial characterization of collagen sheet from fish (Lates calcarifer) scales.

Fish scales, which are hitherto discarded as waste, were collected and cleaned thoroughly. The scales were hydrolyzed under controlled acidic conditions, neutralized and made in to a sheet, i.e.

Prenatal diagnosis of complete heart block.

Two cases of complete heart block diagnosed prenatally are presented. Proper evaluation of such cases by fetal echocardiography is necessary. In the absence of obstetric complication, vaginal delivery of such cases can be expected with biophysical and biochemical monitoring of the fetus in a tertiary care center.