Cell-free extracts from several microorganisms, when prepared by methods originally devised for Chlorella pyrenoidosa (Emerson strain 3) and incubated anaerobically with ATP, Mg(2+), and 2, 3-dimercaptopropan-1-ol, are capable of reducing sulfate-(35)S to thiosulfate. These microorganisms include, in addition to C. pyrenoidosa (Emerson strain 3), several other strains of C. pyrenoidosa, Chlorel...

the transformation of biochemical information into a physical or chemical signal is the basic idea behind a biosensor. the efficient detection of charged biomolecules by biosensor with appropriate device has caught tremendous research interest in the present decade. the present work is related to the simulation study of the performance of a functionalized surface of a biologically sensitive fie...

The present study investigates the angular response and sensitivity of a surface plasmon resonance biosensor with metamaterial, by taking the advantage of the remarkable property of metamaterials. The proposed biosensor numerically shows that silver with a metamaterial layer enhances the sensitivity. The thickness of metamaterial and silver layer has been optimized. On comparing these results w...

The response of a peroxidase-based optical biosensor was modelled digitally.A mathematical model of the optical biosensor is based on a system of non-linear reaction-diffusion equations. The modelling biosensor comprises two compartments, an enzyme layerand an outer diffusion layer. The digital simulation was carried out using finite differencetechnique. The influence of the substrate concentra...

BACKGROUND We have developed a silicon-based biosensor that generates a visual signal in response to nucleic acid targets. METHODS In this system, capture oligonucleotide probes are immobilized on the surface of the biosensor. Interaction of the capture probes with a complementary target and a biotinylated detector oligonucleotide allows initiation of formation of an organic thin film on the ...