The Ohio State University – TechConnect Briefs

Computational Fluid Dynamics Models for the Rational Design of Magnetic Microseparators – In Memory of Dr. Ed Furlani

Gómez-Pastora J., The Ohio State University, US

In this work, we report a numerical flow-focused study of bead magnetophoresis inside a continuous-flow microchannel in order to provide a detailed analysis of bead motion and its effect on fluid flow. Different Computational Fluid [...]

Human monocytes from fresh blood present strong magnetic characteristics; CTV analysis and magnetic susceptibility quantification

Chalmers J.J., Gómez-Pastora J., Kim J., Palmer A., Potgieter M., Reategui E., Walters N., Weigand M., Yazer M., Zborowski M., The Ohio State University, US

The presence of iron in circulating monocytes is well known as they play essential roles in iron recycling. Also, the storage of this metal as well as its incorrect uptake and/or release are important data [...]

Optimization of continuous-flow magnetic bioseparators through CFD numerical models

Bringas E., Gómez-Pastora J., González-Fernández C., Karampelas I.H., Ortiz I., The Ohio State University, US

Continuous flow bioseparators allow magnetic particles that are properly functionalized so that they get attached to dangerous pathogens. Specifically, the unique properties of magnetic particles enable their separation from blood, after fulfilling their role of [...]

Toxic Potential of Food-Relevant Nanoparticles in the Intestinal Epithelium

Dutta P., Knight D., McCracken C., Waldman W.J., Zane A., The Ohio State University, US

Oral exposure to nanoparticles incorporated in foods is increasingly common. However, the effects of these nanoparticles when ingested are still unknown. Thus, this investigation tested the hypothesis that nanoparticle toxicity is dependent on particle size, [...]

“In-Situ” Monitoring of CdSe/ZnS Quantum Dot Growth During Microwave Synthesis

Dutta P., Knight D., McCracken C., Waldman W.J., Zane A., The Ohio State University, US

The microwave synthesis of CdSe/ZnS quantum dots was observed in real-time using fluorescence spectroscopy for the first time. This technique was used as an efficient way to optimize the temperature and time of the synthesis, [...]

Contact Properties of Titanium Nitride Sidewall Coating for Nanoelectromechanical Electronics

Espinosa B., Harrison K.L., Howe R.T., Lee W-S., Mitra S., Provine J., Shavezipur M., Wong H.S.P., The Ohio State University, US

The performance of hybrid NEM-CMOS low power electronics and logic gates highly depends on the source-drain contact resistance and adhesion force, which affect the power consumption and the pull-in/pull-out hysteresis, respectively. In the present work, [...]

Microfluidics and Rheology of Carbon Black Dilute Suspensions: Modeling, Measurement, and Applications

Aramphongphun C., Castro J.M., Hemminger O., Lee L.J., The Ohio State University, US

Rheology and microfluidics are essential and challenging topics in designing microfluidic devices and materials processing. A study of rheological properties (e.g. viscosity) of complex fluids becomes more important in the flow at microscale due to [...]