G. Zhang, Y. Zhao, J. Hodge, J. Brcka, J. Faguet, E. Lee
Clemson University, Clemson, SC, USA
TEL U.S. Holdings, Inc., U.S. Technology Development Center, Austin, TX, USA
In using DEP for particle manipulation, researchers often use a formula to calculate the DEP forces in which the forces are proportional to the particle radius to the third power. This formula assumes that the electrical field, E, will not be affected by the presence of a particle, no matter what the actual size and the dielectric property of the particle are. This work confirms that the ...
P. Nakielski, T. Kowalczyk, T.A. Kowalewski
Institute of Fundamental Technological Research Polish Academy of Sciences, Warsaw, Poland
Comprehensive studies of drug transport in nanofibres based mats have been performed to predict drug release kinetics. The paper presents our approach to analyze the impact of fibers arrangement, one of the parameters varied in our parallel experimental studies. COMSOL Multiphysics® has been used to assess the impact of the various purposed arrangements of fibers within the mat. Drug release ...
P. Pattnaik, S. K. Kamilla , Debi Prasad Das
MEMS Design Center, Institute of Technical Education & Research (ITER),Siksha ‘O’ Anushandhan University, Bhubaneswar-751030, Odisha,India
Process Engineering and Instrumentation Cell,Institute of Minerals and Materials Technology (IMMT),Bhubaneswar, Odisha,India
To prevent further complications in diabetes, proper management of blood glucose levels is essential. By using ultrasonic transceivers (both transmit and receive) the glucose level of human blood can be determined. By using this ultrasonic technique miniaturized sensors for non-invasive monitoring blood glucose levels. In this paper Barium Titanate (BT) thin film was used as a transmitter and ...
A. Mulye, S. Potnis
Northeastern University, Boston, MA, USA
VIT, Mumbai, Maharashtra, India
We present an optimized and efficient design of an electrohydrodynamic (EHD) micropump for high performance in microscale and biological applications. We are targeting two major applications, a parylene C design for electrically-actuated medicine delivery, and a silicon-based pump design for on-chip cooling of microprocessors and SOCs. The EHD micropump works on the movement of microscale ...
Comparing Isotropic and Anisotropic Brain Conductivity Modeling: Planning Optimal Depth-Electrode Placement in White Matter for Direct Stimulation Therapy in an Epileptic Circuit
L. C. Zaragoza, B. Hondorp, M. A. Rossi
ITESM, Monterrey, Mexico
Rush Medical College, Chicago, IL, USA
Rush University Medical Center, Chicago, IL, USA
The goal of our work was to calculate a patient-specific brain conductivity map for predicting the extent to which direct stimulation therapy can strategically propagate through pathological white matter. Our laboratory developed isotropic and anisotropic human brain finite element method (FEM) models derived from SPGR magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI), ...
Improving Detection Sensitivity for Nanoscale Targets Through Combined Photonic and Plasmonic Techniques
G. Zhang, Y. Zhao
Clemson University, Clemson, SC, USA
Photonic technique such as the whispering gallery mode (WGM) is often used for detection of small particles like bacteria and viruses. It offers good detection sensitivity and is advantageous over other detection techniques because the detection can be label free. However, the detection sensitivity may not be sufficient when the size of the detection target is in nanoscale. To change this, we use ...
L. T. Izu, Z. Coulibaly, B. Peercy
University of California-Davis, Davis, CA, USA
University of Maryland, Catonsville, MD, USA
This paper utilizes the COMSOL Multiphysics® general form PDE interface and MATLAB® to model stochastic calcium waves in a sarcomere (basic unit of a heart cell). The model we present here shows the evolution of waves generated from calcium being released stochastically from sites modeled as point sources. The release sites are distributed on z-disc (planes) in a hexagonal pattern, and their ...
Application of the Focused Impedance Method (FIM) to Determine the Volume of an Object within a Volume Conductor
M. A. Kadir, S. P. Ahmed, G. D. Al Quaderi, R. Rahman, K. Siddique-e Rabbani
Department of Biomedical Physics & Technology, University of Dhaka, Dhaka, Bangladesh
Department of Physics, Jahangirnagar University, Savar, Dhaka, Bangladesh
Department of Physics, University of Dhaka, Dhaka, Bangladesh
Focused Impedance Method (FIM), a new technique of electrical impedance measurement having high sensitivity in the central region, can sense the change in transfer impedance of an object embedded at a shallow depth within a volume conductor of unchanging background conductivity, using electrodes at the surface. This paper presents a new method for measuring the volume of such an embedded object ...
R. De Luca[1,2], J. Fromageau, H.W. Chan, F. Marinozzi, J. Bamber
Institute of Cancer Research and Royal Marsden Hospital, Sutton, England, United Kingdom
Sapienza University of Rome, Dept. of Mechanical and Aerospace Engineering, Rome, Italy
Shear wave elastography is an innovative technique used in combination with the traditional ultrasound imaging to improve the specificity of cancer imaging. A two-dimensional finite element model (FEM), composed of realistic boundary conditions, was developed in COMSOL Multiphysics® to simulate the propagation of shear waves induced by an acoustic radiation force impulse (ARFI) in isotropic, ...
B. Granula, K. Porzig, H. Toepfer, M. Gacanovic
University of Banja Luka, Banja Luka, Bosnia-Herzegovina
Technische Universität Ilmenau, Ilmenau, Germany
The prediction of the exact location and intensity of the electric field induced in the human brain during Transcranial magnetic stimulation is a nontrivial computational task. Numerical simulations of the procedure can be used to acquire first approximations in a safe and controlled environment. In order to make this approach more accessible, it is necessary to reduce computation time as much as ...