We report a conductometric nanoparticle biosensor array to address the significant variation of electrical property in nanomaterial biosensors due to the random network nature of nanoparticle thin-film. Indium oxide and silica nanoparticles (SNP) are assembled selectively on the multi-site channel area of the resistors using layer-by-layer self-assembly. To demonstrate enzymatic biosensing capa...

Development of ceramic pigments with controlled particle sizes below 1 µm is essential for the preparation inks used in inkjet digital decoration that currently being applied ceramics sector. A black pigment based on NiCoCrFe composition has been prepared using thermal decomposition hydrotalcite-like compounds. The stoichiometry ratio between different cations was studied to obtain blackest pig...

introduction: any decrease in friction between orthodontic wire and bracket can accelerate tooth movement in the sliding technique and result in better control of anchorage. the present study was carried out to decrease this friction by coating of zinc oxide nanoparticles (zno) on orthodontic wires and porcelain brackets. materials and methods: in this in vitro study, a combination of 120 0.019...

Plate-like BaTiO3 particles with a size of about 200 nm in thickness and 3 μm in width were prepared by using a novel solvothermal soft chemical process in ethanol and water-ethanol mixed solvents. A layered titanate of H1.07Ti1.73O4 with a lepidocrocite-like structure and plate-like nanoparticle morphology was used as the precursor, and solvothermally treated in the Ba(OH)2 solution to prepare...

Three methods were developed for the synthesis of bismuth-ceramic nanocomposites, which are of interest due to possible use as thermoelectric materials. In the first synthetic method, high energy ball milling of bismuth metal with either MgO or SiO 2 was found to produce nanostructured bismuth dispersed on a ceramic material. The morphology of the resulting bismuth depended on its wetting behav...

The purpose of this study was to evaluate the color stability of a maxillofacial elastomer with the addition of a nanoparticle pigment and∕or an opacifier submitted to chemical disinfection and artificial aging. Specimens were divided into four groups (n = 30): group I: silicone without pigment or opacifier, group II: ceramic powder pigment, group III: Barium sulfate (BaSO(4)) opacifier, and gr...