The influence of the beam ratio between reference and object beam intensities on the characteristics of diffuse-object holograms recorded as volume phase holograms in bleached silver halide emulsion is experimentally analyzed. Measurements of the diffraction efficiency and the signal-to-noise ratio of the holograms are taken. The experimental results presented show that when the beam ratio incr...

A novel real-time gray-scale photolithography technique for the fabrication of continuous microstructures that uses a LCD panel as a real-time gray-scale mask is presented. The principle of design of the technique is explained, and computer simulation results based on partially coherent imaging theory are given for the patterning of a microlens array and a zigzag grating. An experiment is set u...

Silver sulfadiazine, at a concentration of 10 mug/ml when applied immediately after infection by Herpesvirus hominis, prevented the development of acute herpetic keratoconjunctivitis in rabbits. The efficacy was inversely related to the size of inoculum. Subclinical infections were observed in the drug-treated eyes.

Background: Pseudomonas aeruginosa, as an etiological agent, has a prominent infection role in serious burned patients. Burned patients usually treated with antiseptic ointments such as silver sulfadiazine (SSD). This study evaluated the effectiveness of 1% SSD and different concentrations of silver nitrate solution (SNS) on resistant isolates of P. aeruginosa. Methods: Three groups of P. aerug...

Silver compounds have been exploited for their medicinal properties for centuries. At present, silver is reemerging as a viable treatment option for infections encountered in burns, open wounds, and chronic ulcers. The gold standard in topical burn treatment is silver sulfadiazine (Ag-SD), a useful antibacterial agent for burn wound treatment. Recent findings, however, indicate that the compoun...

A method for copying holographic optical elements with partially coherent light by using a holographic system is presented. The system includes two holographic lenses that are made as thick-phase holograms on silver halide-sensitized gelatin. The geometric conditions during reconstruction of the holographic system with white light are studied and the performance of the system is analyzed by a r...

A method to determine the refractive index and thickness of silver halide emulsions used in holography is presented. The emulsions are in the form of a layer of film deposited on a thick glass plate. The experimental reflectances of p-polarized light are measured as a function of the incident angles, and the values of refractive index, thickness, and extinction coefficient of the emulsion are o...

Reactions in the solid state are at the core of crystal engineering as they can result in new crystalline phases that are not always accessible by traditional solution methods. The work of Brammer and co-workers [Wright et al. (2015), IUCrJ, 2, 188-197] represents a clear example of this potential as applied to the synthesis of a silver-phenazine coordination polymer.

This study was done for comparative evaluation of Hydrogel dressing with conventional dressing in 2nd degree burns involving up to 25 % of the total body surface area in our S.S.G. Hospital, Vadodara, Gujarat state, India from June 2005 to November 2006. In one group treatment with Hydrogel dressing was continued every three days and in the other group conventional dressing with Silver Sulfadia...