Papers – Page 5 – TechConnect Briefs

A More Accurate and Precise Method to Calibrate Atomic Force Microscope (AFM) Cantilevers

Clark J.V., Auburn University, US

This paper presents a method for using a calibrated microelectromechanical system (MEMS) device to calibrate an atomic force microscope (AFM) cantilever. Measure- ments of stiffness and deflection can be made with quantifiable uncertainty. The popular [...]

An Airborne Gimballed Imaging System

Sun X., NextGen Imaging Technologies (NGIT), Inc., US

An airborne gimballed imaging system comprises an agile, accurate, efficient, and versatile gimbal machine. It drives a long range imaging sensor payload over wide roll, pitch, and yaw angular ranges. Together with an embedded instrument [...]

A Novel Colorimetric H2S Measurement for Environmental and Oil and Gas Applications

Skates V.W.L., van Hal R.E.G., Schlumberger-Doll Research, US

This paper provides a novel colorimetric method to measure hydrogen sulfide in water, air, natural gas and oil. A bismuth ion based reagent reacts with sulfide to form bismuth sulfide nanoparticles, causing the solution to [...]

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

, 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 [...]

New Technologies for the Rapid Identification of Drug-Resistant Bacteria

Sauer-Budge A.F., Exponent and Boston University, US

The extensive use of antibiotics to treat infections, without first specifically identifying the underlying cause, has resulted in a strong natural selection for antibiotic resistant organisms. Conservative estimates from the CDC indicate that more than [...]

Mimicking Proximal Tubule Cell functioning for Artificial Kidney Applications

Sateesh1 J., Guha K., Dutta A., Sengupta P., Srinivasa Rao K., National Institute of Technology Silchar, IN

The importance for artificial organs development is ever increasing, especially for artificial kidney is needed by a vast number of people suffering from kidney failure. This paper presents a novel Bio-reactor technique by using the [...]

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

Kim J., Weigand M., Potgieter M., Walters N., Reategui E., Palmer A., Yazer M., Zborowski M., Chalmers J.J., 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 [...]

CFD Analysis of the Generation and Manipulation of Ferrofluid Droplets

Karampelas I.H., Gómez-Pastora J., Amiri V., Tarn M.D., Bringas E., Iles A., Pamme N., Furlani E.P., Ortiz I., Flow Science Inc., US

In recent years, there has been a significant increase of droplet-based microfluidic systems. This is mostly due to the advantages that such systems present such as chemical and bio-compatibility, the ability to perform a variety [...]

Recirculating samples inside chambers using vacuum and centrifugal forces

Wang A., Koh D., Oh K.W., SMALL (Sensors and MicroActuators Learning Lab), Department of Electrical Engineering, The State University of New York at Buffalo, US

In this paper, a combination of vacuum and centrifugal forces was studied for recirculate samples inside the chambers. Detection low concentration samples, rare molecules such as cancer cells or certain proteins among large volume of [...]

Optimization of continuous-flow magnetic bioseparators through CFD numerical models

González-Fernández C., Gómez-Pastora J., Karampelas I.H., Bringas E., 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 [...]