Uniform hydrogel films from micro/nano-hydrogel particles were prepared on the silicon wafers and microcantilevers. These films were assembled on the substrates by using electrophoretic deposition (EPD) method. The microcantilevers coated by such films responded to the environmental pH changes, indicating that the EPD could be used as a new method for modifying microcantilevers.

We report our recent results on an optimization study of focused ion beam (FIB) nano-structuring of Bragg gratings in Al2O3 channel waveguides. By optimizing FIB milling parameters such as ion current, dwell time, loop repetitions, scanning strategy, and applying a top metal layer for reducing charging effects and improving sidewall definition, reflection gratings with smooth and uniform sidewa...

The Minnesota Nano Center’s Keller Hall facility includes an atomic layer deposition (ALD) machine that is capable of depositing uniform alumina (Al2O3), hafnium oxide (HfO2), silicon dioxide (SiO2), zinc oxide (ZnO), and titanium dioxide (TiO2). ALD works by building alternate layers on a film using two different precursor gases – one usually supplying the metallic atoms and water vapor (H2O) ...

bending analysis of multilayer graphene sheets (mlgss) subjected to non-uniform shear and normal tractions is presented. the constitutive relations are considered to be non-classical based on nonlocal theory of elasticity. based on the differential transformation method, numerical illustrations are carried out for circular and annular geometries. the effects of nano scale parameter, radius of c...

Understanding magnonic properties of nonperiodic magnetic nanostructures requires real-space imaging ferromagnetic resonance modes with spatial resolution well below the optical diffraction limit and sampling rates in 5--100 GHz range. Here, we demonstrate element-specific scanning transmission x-ray microscopy-detected (STXM-FMR) applied to a chain dipolarly coupled ${\mathrm{Fe}}_{3}{\mathrm{...

Magnetic fluids are stable colloidal suspensions of ferromagnetic nano-particles (of size 10-20 nm) in a nonmagnetic liquid carrier. An initially uniform particle distribution in the carrier becomes spatially inhomogeneous in nonuniform magnetic fields. Motion of particles in magnetic fluids under the action of magnetic fields is of particular interest for contemporary mathematical and numerica...

In this study the effect of nano sized silica particles (nano-SiO2) on the physical and mechanical properties of rice husk and Old Corrugated Container (OCC)-cement boards was investigated. Modulus Of Rupture (MOR), Modulus Of Elasticity (MOE), Internal Bonding Strength (IB), density, water absorption and thickness swelling after 24 hours immersion in water and hardness were meas...