Conferences related to Micropumps

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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 IEEE Industry Applications Society Annual Meeting

The Annual Meeting is a gathering of experts who work and conduct research in the industrial applications of electrical systems.


2020 IEEE International Conference on Robotics and Automation (ICRA)

The International Conference on Robotics and Automation (ICRA) is the IEEE Robotics and Automation Society’s biggest conference and one of the leading international forums for robotics researchers to present their work.


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 Magnetic Conference (INTERMAG)

INTERMAG is the premier conference on all aspects of applied magnetism and provides a range of oral and poster presentations, invited talks and symposia, a tutorial session, and exhibits reviewing the latest developments in magnetism.


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Periodicals related to Micropumps

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Advanced Packaging, IEEE Transactions on

The IEEE Transactions on Advanced Packaging has its focus on the modeling, design, and analysis of advanced electronic, photonic, sensors, and MEMS packaging.


Automation Science and Engineering, IEEE Transactions on

The IEEE Transactions on Automation Sciences and Engineering (T-ASE) publishes fundamental papers on Automation, emphasizing scientific results that advance efficiency, quality, productivity, and reliability. T-ASE encourages interdisciplinary approaches from computer science, control systems, electrical engineering, mathematics, mechanical engineering, operations research, and other fields. We welcome results relevant to industries such as agriculture, biotechnology, healthcare, home automation, maintenance, manufacturing, pharmaceuticals, retail, ...


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.


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.


Dielectrics and Electrical Insulation, IEEE Transactions on

Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.


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Most published Xplore authors for Micropumps

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Xplore Articles related to Micropumps

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Valveless thermally-driven phase-change micropump

Tsinghua Science and Technology, 2004

A dynamic model with moving heat sources was developed to analyze the pumping mechanism of a valveless thermally-driven phase-change micropump. The coupled equations were solved to determine the pumping characteristics. The numerical results agree with experimental data from micropumps with different diameter microtubes. The maximum flow rate reached 33 μL / min and the maximum pump pressure was over 20 ...


A developed microfluidic system with model reference adaptive control

2012 IEEE International Conference on Mechatronics and Automation, 2012

A developed microfluidic system which is actuated by EO (electroosmotic) actuators was presented toward biomedical system and drug delivery systems. The classical structure, which consists of an actuating unit, chambers and rectifiers, has been employed in the design. The EO actuators with the impulse input make the polydimethylsiloxane (PDMS) diaphragm which separates the two chambers reciprocate. So the working liquid ...


A high-flow Knudsen pump using a polymer membrane: Performance at and below atmospheric pressures

2010 IEEE 23rd International Conference on Micro Electro Mechanical Systems (MEMS), 2010

This paper describes a miniature gas (Knudsen) pump that utilizes thermomolecular flow through a nanoporous membrane. A temperature gradient along the length of a pore that supports free molecular gas flow at atmospheric pressure pumps gas molecules from the cold end to the hot end. In contrast with past work, the membrane material is mixed cellulose which provides superior uniformity ...


A numerical study on characteristics of the magnetohydrodynamic micropumps

2015 3rd RSI International Conference on Robotics and Mechatronics (ICROM), 2015

This paper presents a particular type of fluid flow called MHD (magnetohydrodynamic) in micropumps. The micropump consists of a micro scaled rectangular channel with side walled electrodes for applying electric current and transverse magnetic field perpendicular to the electric field. This continuous flow is the result of Lorentz force, perpendicular to both magnetic and electric fields, which propels the electrically ...


Normally closed piezoelectric micro valve

2010 Symposium on Design Test Integration and Packaging of MEMS/MOEMS (DTIP), 2010

Based on a previously developed piezoelectric membrane actuator a normally closed piezoelectric micro valve was designed. The presented paper briefly explains the principle of this novel actuator and continues with the possible design of a normally closed piezoelectric micro valve. The actuator operates with surface electrodes. The thus generated electric field causes an inhomogeneous mechanical stress distribution within the piezoelectric ...


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Educational Resources on Micropumps

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IEEE-USA E-Books

  • Valveless thermally-driven phase-change micropump

    A dynamic model with moving heat sources was developed to analyze the pumping mechanism of a valveless thermally-driven phase-change micropump. The coupled equations were solved to determine the pumping characteristics. The numerical results agree with experimental data from micropumps with different diameter microtubes. The maximum flow rate reached 33 μL / min and the maximum pump pressure was over 20 kPa for a 200-μm diameter microtube. Analysis of the pumping mechanism shows that the main factors affecting the flow come from the large density difference between the liquid and vapor phases and the choking effect of the vapor region.

  • A developed microfluidic system with model reference adaptive control

    A developed microfluidic system which is actuated by EO (electroosmotic) actuators was presented toward biomedical system and drug delivery systems. The classical structure, which consists of an actuating unit, chambers and rectifiers, has been employed in the design. The EO actuators with the impulse input make the polydimethylsiloxane (PDMS) diaphragm which separates the two chambers reciprocate. So the working liquid can be pumped from inlet to outlet. Due to the large deflections of the PDMS diaphragm, the device is completely self-filling and able to pump liquid even operated in vertical situation. By using the indirect pumping mechanisms, the EO actuator can be used more widely without considering the properties of the working liquid. In order to find the characteristic of the microfluidic system, the Bouc-Wen model was used to model it. Based on this model, the model reference adaptive control (MRAC) method was used to obtain the stable flow rate, because of the uncertain parameter. And some simulations were manipulated to show the controlling results of the MRAC which is used in the microfluidic system. These researches demonstrate the microfluidic system with MRAC performance and ability to deliver the fluid and drugs to biomedical systems.

  • A high-flow Knudsen pump using a polymer membrane: Performance at and below atmospheric pressures

    This paper describes a miniature gas (Knudsen) pump that utilizes thermomolecular flow through a nanoporous membrane. A temperature gradient along the length of a pore that supports free molecular gas flow at atmospheric pressure pumps gas molecules from the cold end to the hot end. In contrast with past work, the membrane material is mixed cellulose which provides superior uniformity in pore diameter and porosity. The final packaged volume of the Knudsen pump is 14×14×4.4 mm<sup>3</sup>. For an input power of 1.4 W, a single stage Knudsen pump based on these nanoporous polymer membrane has a temperature bias of 30 K across the thickness of the membrane, which provides 0.4 sccm flow against a 330 Pa pressure head. The load characteristics of the pump suggest that the pump can provide as much as 0.93 sccm gas flow in the absence of a load. Knudsen pump operation at sub- atmospheric pressures is also reported.

  • A numerical study on characteristics of the magnetohydrodynamic micropumps

    This paper presents a particular type of fluid flow called MHD (magnetohydrodynamic) in micropumps. The micropump consists of a micro scaled rectangular channel with side walled electrodes for applying electric current and transverse magnetic field perpendicular to the electric field. This continuous flow is the result of Lorentz force, perpendicular to both magnetic and electric fields, which propels the electrically conductive liquid through the channel. The effects of varying width and depth of the channel on flow rate, maximum pressure generation, and energy consumption rate at a constant electric current are studied. Having assumed that the flow is laminar, incompressible, and three-dimensional, finite volume method (FVM) is used to solve the 3D governing equations. It is found that changing width and depth, respectively, show linear and nonlinear behavior with respect to the studied parameters. For validation of the obtained code, a comparison between our calculations and experimental and numerical calculations of previous researchers is done and showed a good quantitative agreement.

  • Normally closed piezoelectric micro valve

    Based on a previously developed piezoelectric membrane actuator a normally closed piezoelectric micro valve was designed. The presented paper briefly explains the principle of this novel actuator and continues with the possible design of a normally closed piezoelectric micro valve. The actuator operates with surface electrodes. The thus generated electric field causes an inhomogeneous mechanical stress distribution within the piezoelectric material. Because of this the piezoelectric material is forced to deflect without any supporting passive membrane. If this actuator is placed smartly in a micro valve device a normally closed piezoelectric micro valve can be created, as will be shown in this paper.

  • Innovative Electrode Arrangement for Electrohydrodynamic Pumping

    An experimental investigation was conducted to develop an electrohydrodynamic (EHD) pump based on a microelectromechanical system (MEMS) technology. To develop an EHD micropump with enhanced pumping performance, including not only long-term driving but high-pressure generation, two electrode plates were prepared. On one, the electrode pattern was designed as a series of planar comb fingers. The electrodes had a width of 60 mum, with a 120-mum gap between each pair. The gap between the electrode pairs is 480 mum. The other electrode plate was a non-patterned plane surface. The working fluid was confined between the two electrodes, which faced each other with a distance of 100 mum. The overall dimensions of the micropump were 30 times 30 times 5.3 mm. The working fluid used was HFE-7100 (3 M), and all the experiments were conducted inside a class 1000 clean room with controlled moisture content (19.0%) and temperature (295.55 plusmn 0.5 K). The pump generated a maximum pressure of 500 Pa and a maximum flow rate of 6 mL/min. The highest pump performance was 0.25%. Finally, we proposed an EHD pumping mechanism that explains the pressure generation as the emission of positively charged liquid molecules through the hetero-charge layers.

  • Detection of a cardiac infarct on a disposable lab on a chip device

    In our paper we describe a new microfluidic immumoassay chip for the quantitative detection of biologically active substances like myoglobin or troponine. These proteins are used as so called cardiacmarkers. The presence of these proteins in a human blood sample can indicate a cardiac infarct. By designing appropriate micro fluidic structures the classical process steps of an immunoassay are integrated on a disposable microfluidic chip. The readout electronics and the pump drives can be combined in a non-disposable readout unit.

  • Chemically actuated microinjectors and programming with a microfluidic network

    A microfluidic device that works autonomously without external electrical signals was fabricated. The device consisted of chemically actuated microinjectors and microfluidic networks. The operation of the microinjectors was based on the volume change of oxygen bubbles produced as a result of catalytic decomposition of hydrogen peroxide. A hydrogen peroxide solution was transported through a flow channel for programming by capillary action spontaneously. Following this, the microinjectors were switched on sequentially. Solutions stored in the upper reservoir for the respective microinjectors could be injected into a main flow channel. Timing for triggering the pumping action could be adjusted by changing the length of the programming flow channel for the hydrogen peroxide solution. In other words, information of the program could be written on the device in the form of the network of flow channels.

  • The selfpriming VAMP

    The VAMP is a miniaturized device which is both, an active microvalve and a forward and reverse working micropump (VAMP=Valve And MicroPump). Operating in the valve mode, the device enables fluid to flow or blocks it. Operating in the pump mode, fluids can be pumped in both directions. The pump direction can be controlled by the driving frequency of the actuator. After recent optimization of the geometry and especially after optimization of the pump chamber height, we now achieved selfpriming of the VAMP with liquids. The VAMP has been manufactured in a small-lot production and is available for industrial evaluation.

  • Live demonstration: Characterization of a wireless implantable infusion micropump for small animal research under simulated in vivo conditions

    Rodents are the most widely used animal model in the study of human disease and drug administration technologies suitable for use in rodents are therefore critically important in the development of new treatments. Implantable drug delivery devices provide site specific and controlled drug administration while eliminating frequent handling, tethers, and stress induction associated with other drug delivery methods. Although implantable pumps are commercially available, none are suitable for controlled chronic dosing experiments in mice. These commercial pumps possess one or more of the following deficiencies: too large, limited drug payload, limited lifetime due to single- use battery, single fixed flow rate, or inability to adjust flow rate after implantation.



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