The adsorption of genomic DNA and subsequent interactions between adsorbed and solvated DNA was studied using a novel sensitive optical method of total internal reflection ellipsometry (TIRE), which combines spectroscopic ellipsometry with surface plasmon resonance (SPR). Single strands of DNA of two species of fish (herring and salmon) were electrostatically adsorbed on top of polyethylenimine...

Computer Controlled Ultra-precision Polishing (CCUP) provides an enabling technology for machining freeform components with optical surface quality (i.e., nanometer surface roughness and sub-micrometer or accuracy). It can be used to machine difficult-to-machine materials such as optical glass which are not amenable for diamond machining. Due to the complexity of material removal mechanism in t...

Silica glass is frequently used as a device material for micro/nano fluidic devices due to its excellent properties, such as transparency and chemical resistance. Wet etching by hydrofluoric acid and dry etching by neutral loop discharge (NLD) plasma etching are currently used to micromachine glass to form micro/nano fluidic channels. Electro-osmotic flow (EOF) is one of the most effective meth...

The purpose of this study was to evaluate the effects of four different ratios of silanized mica filler and milled glass fiber on the surface hardness of an acrylic denture tooth material. Acrylic resin disks made of polymethyl methacrylate (PMMA) used in fabrication of denture teeth were used as the control group. Eight test groups were prepared by adding a ratio of 5%, 10%, 15%, or 20% by wei...

Platelet adhesion to glass has been directly determined with a cover slip chamber. These studies have separated the functions of platelet adhesion to a foreign surface from platelet cohesion (aggregation). The forces of the platelet-glass interaction have been studied, and the qualitative variables affecting this interaction have been defined. Fibrinogen and calcium or magnesium are required fo...

Two different experimental approaches based on ellipsometry and zeta potential measurements have been employed to determine the dispersion and polar surface free energy components of glass. From ellipsometry the adsorption isotherms of n-octane and water have been determined, yielding values for the film pressures of n-octane and water and the dispersion and polar surface free energy components...

This paper presents systematic investigation on the surface properties of electroosmotic flows (EOF) inside microchannels for quartz, glass and PDMS based materials. Two novel methods to modify the surface properties of glass-based microchannels for capillary electrophoresis (CE) are developed. Instead of using complicated and time-consuming chemical silanization procedures for surface modifica...

Sand glass deposits was located in the mid of the Western Desert of Iraq. It is situated within Rutba Formation (Ceno-manian). Ancient traditional mining method is still used in exploitation the unconsolidated white glass sand from glass sand quarry. The overburden thickness ranges from 2 to 4 m in average. Termite hills were observed around the glass sand quarry extending far from the quarry a...

 3D Printed Glass: Surface Finish and Bulk Properties as a Function of the Printing Process Susanne Klein, Michael P. Avery, Robert M. Richardson, Paul Bartlett, Regina Frei, Steven J. Simske HP Laboratories HPL-2015-4 3D printing; glass; firing; bulk properties; surface finish It is impossible to print glass directly from a melt, layer by layer. Glass is not only very sensitive to temperature...