Dielectrophoresis

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Dielectrophoresis (or DEP) is a phenomenon in which a force is exerted on a dielectric particle when it is subjected to a non-uniform electric field. (Wikipedia.org)






Conferences related to Dielectrophoresis

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2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted papers will be peer reviewed. Accepted high quality papers will be presented in oral and postersessions, will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE


2020 59th IEEE Conference on Decision and Control (CDC)

The CDC is the premier conference dedicated to the advancement of the theory and practice of systems and control. The CDC annually brings together an international community of researchers and practitioners in the field of automatic control to discuss new research results, perspectives on future developments, and innovative applications relevant to decision making, automatic control, and related areas.


2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

The Conference focuses on all aspects of instrumentation and measurement science andtechnology research development and applications. The list of program topics includes but isnot limited to: Measurement Science & Education, Measurement Systems, Measurement DataAcquisition, Measurements of Physical Quantities, and Measurement Applications.


2020 IEEE International Power Modulator and High Voltage Conference (IPMHVC)

This conference provides an exchange of technical topics in the fields of Solid State Modulators and Switches, Breakdown and Insulation, Compact Pulsed Power Systems, High Voltage Design, High Power Microwaves, Biological Applications, Analytical Methods and Modeling, and Accelerators.


2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA)

Artificial Intelligence, Control and Systems, Cyber-physical Systems, Energy and Environment, Industrial Informatics and Computational Intelligence, Robotics, Network and Communication Technologies, Power Electronics, Signal and Information Processing


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Periodicals related to Dielectrophoresis

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Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Biomedical Circuits and Systems, IEEE Transactions on

The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Circuits and Systems Magazine, IEEE


Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on

Methods, algorithms, and human-machine interfaces for physical and logical design, including: planning, synthesis, partitioning, modeling, simulation, layout, verification, testing, and documentation of integrated-circuit and systems designs of all complexities. Practical applications of aids resulting in producible analog, digital, optical, or microwave integrated circuits are emphasized.


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Most published Xplore authors for Dielectrophoresis

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Xplore Articles related to Dielectrophoresis

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Dielectrophoresis study of electroporation effects on Chinese hamster ovary cells

2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM), 2014

Electroporation affects the dielectric properties of cells by creating pores in their membrane which allow transport of ions. Dielectrophoresis (DEP) is a powerful technique to investigate electroporation of single biological cells. Here we study the frequency dependent response of Chinese hamster ovary (CHO) cells and investigate the effect of different cell parameters on the DEP spectra. The results suggest low ...


Hydration of ions-how does it influence water treeing?

Proceedings of 5th International Conference on Properties and Applications of Dielectric Materials, 1997

Water treeing in polyethylene in contact with aqueous salt solutions is influenced by the diffusion constant of the salt in the polymer and especially by hydration effects around salt inclusions. Salt molecules accumulate in regions of locally increased electric fields and act as condensation nuclei for liquid water. An aqueous solution of the salt is formed and the reduction of ...


Dynamic behaviors of microdroplets in convergent microchannels under the effect of dielectrophoresis

The 8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2013

The convergent microchannel is widely applied to connect microchannels with different sizes to avoid sharp changes of the flow field. It is important to investigate the dynamic properties in the convergent microchannel to promote the development of microdevices. Numerical simulation method is used to study the dynamic behaviors of microdroplets in a convergent microchannel. The microchannel is embedded with electrodes ...


Dielectrophoresis of plant protoplasts

Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting, 1991

The spectra of effective dielectric constants which are proportional to dielectrophoretic force were investigated for a single protoplast of Ducaus carota in the range of 100 kHz to 50 MHz. The dielectrophoretic force was obtained by measuring the velocity of protoplast using an electrode which provides for a constancy in the dielectrophoretic force. The spectra show two or three peaks. ...


DEP-base particle counting device

The 13th International Conference on Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS '05., 2005

The research disclosed a particle-counting device which can reliably count particles in the fixed quantity of sample solution. Let sample drop in the chip inlet, then use dielectrophoresis (DEP) force produced by separation device on the chip to separate and move specific particles to micro-pore. High reliable Coulter principle had been introduced on this device. When the particles pass through ...


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IEEE.tv Videos

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IEEE-USA E-Books

  • Dielectrophoresis study of electroporation effects on Chinese hamster ovary cells

    Electroporation affects the dielectric properties of cells by creating pores in their membrane which allow transport of ions. Dielectrophoresis (DEP) is a powerful technique to investigate electroporation of single biological cells. Here we study the frequency dependent response of Chinese hamster ovary (CHO) cells and investigate the effect of different cell parameters on the DEP spectra. The results suggest low frequency DEP application (less than 200 kHz) for investigating the cell membrane conductivity, mid frequency DEP application (1-30 MH) for investigating the cell cytoplasm conductivity, and high frequency DEP application (greater than 100 MHz) for investigating cell cytoplasm permittivity.

  • Hydration of ions-how does it influence water treeing?

    Water treeing in polyethylene in contact with aqueous salt solutions is influenced by the diffusion constant of the salt in the polymer and especially by hydration effects around salt inclusions. Salt molecules accumulate in regions of locally increased electric fields and act as condensation nuclei for liquid water. An aqueous solution of the salt is formed and the reduction of the saturation pressure over this saturated solution attracts additional water by diffusion processes. Specific chemical properties of the salts seem not to be of any importance.

  • Dynamic behaviors of microdroplets in convergent microchannels under the effect of dielectrophoresis

    The convergent microchannel is widely applied to connect microchannels with different sizes to avoid sharp changes of the flow field. It is important to investigate the dynamic properties in the convergent microchannel to promote the development of microdevices. Numerical simulation method is used to study the dynamic behaviors of microdroplets in a convergent microchannel. The microchannel is embedded with electrodes and alternating current (AC) is applied on the electrodes. Under the effect of nonuniform electric field, dielectrophoresis force is defined as the driving force to manipulate the microdroplets in the convergent microchannel. In this study, the surface tension is considered in the Navier-Stokes equations. The influence of dielectric constant and magnitude of voltage on the dynamic behaviors of microdroplets are analyzed in details. According to the results, the velocity of the microdroplet is proportional to the dielectric constant and voltage in the convergent microchannel. This can provide an efficient method to control the droplet merging process during the biological or chemical experiments.

  • Dielectrophoresis of plant protoplasts

    The spectra of effective dielectric constants which are proportional to dielectrophoretic force were investigated for a single protoplast of Ducaus carota in the range of 100 kHz to 50 MHz. The dielectrophoretic force was obtained by measuring the velocity of protoplast using an electrode which provides for a constancy in the dielectrophoretic force. The spectra show two or three peaks. In addition, the spectra washed in sucrose solution are found to be different from those washed and suspended in mannitol solution. the spectrum of the effective dielectric constants is obtained by measuring the impedance of a suspension in the range of 100 kHz to 10 MHz. The spectrum obtained is compared with that of the velocity measurement method.<<ETX>>

  • DEP-base particle counting device

    The research disclosed a particle-counting device which can reliably count particles in the fixed quantity of sample solution. Let sample drop in the chip inlet, then use dielectrophoresis (DEP) force produced by separation device on the chip to separate and move specific particles to micro-pore. High reliable Coulter principle had been introduced on this device. When the particles pass through the micro-pore one by one, recording the numbers of ion current reduction events can correctly count the quantity of specific particles in the fixed volume of sample solution.

  • Characterisation of Herpes Simplex Virus particles by dielectrophoreic crossover methods

    Dielectrophoresis (DEP) is a technique which has been applied to the investigation of the biophysical properties of cells and other micron-scale particles. Recent advances in electrode fabrication have enabled the application of dielectrophoretic techniques to the analysis of sub-micron particles such as latex nanospheres, proteins and viruses. In this paper the dielectrophoretic properties of the human pathogen Herpes Simplex Virus, type 1 (HSV-1) as a function of suspending medium conductivity are presented. This study confirms previous estimates of dielectric properties of the HSV-1 virion. These properties are: surface conductance 3 nS, internal relative permittivity 68, internal conductivity 7 mSm/sup -1/.

  • On application of positive dielectrophoresis and microstructure confinement on multielectrode array with sensory applications

    In this work, we describe the modeling and experimental verification of parameters (voltage, frequency and cell suspension medium) for successful implementation of a positive dielectrophoresis (pDEP) technique that can be used to attract cells to multielectrode array (MEA) electrode sites. We also discuss the comparison of different designs for mechanical confinement microstructures that can be used to successfully lead neurites in-between the electrodes. We fabricated multielectrode arrays based on this principle and demonstrated the usefulness of this technique for active recruitment of neurons on electrodes.

  • Micro tri-axial force sensor for 3D bio-micromanipulation

    It is important to manipulate a biological small object, such as a cell and embryo. Three-dimensional high speed micromanipulation is needed as a fundamental technology for biology and bio-engineering application. In this paper, we focus on the contact type micromanipulation in the liquid. We designed and made a contact type micromanipulation system which has a 3-DOF narrow range positioning system on a 3-DOF wide range positioning system. We developed a micro tri-axial force sensor which can be installed near the tip of the end effector. Performance of this micro-force sensor is presented.

  • A capacitance detection circuit for on-chip microparticle manipulation

    This study proposes a capacitance detection circuit for on-chip microparticle manipulation. The designed circuit employs the charge-based capacitance measurement technique to convert a capacitance value to a digital output code. Experimental results reveal capacitance measurement within error of 4 fF.

  • Dielectrophoresis of Electroless Gold Plating Polystyrene Microspheres

    Micro spheres with perfect conductive surface have many advantages in biosensor and MEMS devices research. Polystyrene micro spheres were coated gold shell perfectly using electroless gold plating method and the scanning electron microscope (SEM) images were obtained detailedly. Dielectrophoresis (DEP) model of single sphere and signal shell sphere were set up and the real part of the Clausius-Mossotti factor for the two kinds of micro spheres were calculated. Experiments on the DEP characterization for the native polystyrene micro spheres and gold coated polystyrene micro spheres (GCPM) were measured and the results show that the GCPM can only be acted by positive DEP force when the order of the frequency is below 10<sup>12</sup> Hz. The experimental results and the theory prediction have a good agreement.



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