Identifying biogenic silica: Mudrock micro-fabric explored through charge contrast imaging

Mimicking Biogenic Silica Nanostructures Formation

Biomineralization processes are now fully recognized as inspiring systems for the design of new materials. In the case of silica, the formation of diatom shell or sponge spicule has attracted much attention in the last decade since it could provide key information to elaborate new hierarchically structured materials and nanodevices. In these two examples, the mineral phase is thought to be form...

Riverine contribution of biogenic silica to the oceanic silica budget

Biological uptake of dissolved silicate (DSi) and formation of biogenic silica (BSi) during diatom growth modifies the form of Si carried from the continents to the world ocean. Significant concentrations of BSi, averaging 28.0 pmol L-l, are found in all sizes of rivers. The global contribution of BSi carried by rivers was estimated as 1.05 ? 0.20 Tmol Si year’. Combined with the global mean ri...

Electrical transport through micro- fabricated charge-density-wave structures

following presentations: (1) Noat Y, Bouchiat H, Reulet B (Universite Paris-Sud, Orsay, France), Mailly D (Bagneux, France) ``Electromagnetic responses of isolated quantum rings and dots: from discrete to continuous spectrum''; (2) van der Zant H S J, Mantel O C, Rutten P W F, Dekker C (Delft University of Technology, Delft, the Netherlands) ``Electrical transport through micro-fabricated charg...

Comparative Studies of High Contrast Fluorescence Imaging Efficiency of Silica-coated CdSe Quantum Dots with Green and Red Emission

Herein we report the possibility of using green and red emitting silica-coated cadmium selenide (CdSe) quantum dots (QDs) for remarkable stem and cancer cellular imaging, efficient cellular uptake and fluorescence imaging of semi and ultra-thin sections of tumor for in vivo tumor targeted imaging applications. The comparative studies of high contrast cellular imaging behaviours of the silica-co...

A Micro Power Hardware Fabric for Embedded