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Publikationsliste Sabrina Kartmann
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Originalarbeiten in wissenschaftlichen Fachzeitschriften Jahre: 2024 |
2023 |
2022 |
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2013 | alle anzeigen zurück zur Übersicht aller Publikationen V. Zieger, E. Woehr, S. Zimmermann, D. Frejek, P. Koltay, R. Zengerle, S. KartmannAutomated Nanodroplet Dispensing for Large-Scale Spheroid Generation via Hanging Drop and Parallelized Lossless Spheroid Harvesting 2024 Micromachines , Band : 15, Seite : 231 Z. Khan, D. Gururajan, P. Koltay, S. Kartmann, R. Zengerle, Z. ShuHybrid 3D Printing of Molten Metal Microdroplets and Polymers for Prototyping of Printed Circuit Boards Featuring Interdigitated 3D Capacitors 2024 EEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, IEEJ Trans 2024 J. Weygant, F. Koch, K. Adam, K. Tröndle, R. Zengerle, G. Finkenzeller, S. Kartmann, P. Koltay, S. ZimmermannA Drop-on-Demand Bioprinting Approach to Spatial Arrangement of Multiple Cell Types and Monitoring Their Cell–Cell Interactions towards Vascularization Based on Endothelial Cells and Mesenchymal Stem Cells 2023 Cells , Band : 12, Nummer : 4, Seite : 646 P. Sardana, M. Zolfaghari, G. Miotto, R. Zengerle, T. Brox, P. Koltay, S. KartmannDropletAI: Deep Learning-Based Classification of Fluids with
Different Ohnesorge Numbers during Non-Contact Dispensing 2023 Fluids , Band : 8, Seite : 183 G. Miotto, K. Thiemann, M. Rombach, R. Zengerle, S. KartmannHolographic PIV/PTV for nano flow rates - a study in the 70 to 200 nL/min range 2023 Biomedical engineering , Band : 68, Nummer : 1, Seiten : 97 - 107 Z. Khan, P. Koltay, R. Zengerle, S. Kartmann, Z. ShuOne-Stop Hybrid Printing of Bulk Metal and Polymer for 3D Electronics 2023 Advanced Engineering Materials , Seite : 2300922 V. Zieger, D. Frejek, S. Zimmermann, G. A. A. Miotto, P. Koltay, R. Zengerle, S. KartmannTowards Label-Free Standardization in 3d Cell Culture: Automated, Selective and Gentle High-Throughput Handling of Spheroids and Organoids via Novel Pick-Flow-Drop Principle 2023 Adv Healthc Mater , Seite : e2303350 Dornhof J, Zieger V, Kieninger J, Frejek D, Zengerle R, Urban GA, Kartmann S, Weltin ABioprinting-based automated deposition of single cancer cell spheroids into oxygen sensor microelectrode wells 2022 LabChip , Band : 8, Nummer : 22, Seiten : 4369 - 4381 C. Mills, E. Batista, H. Bissig, F. Ogheard, A. W. Boudaoud, O. Büker, K. Stolt, J. Morgan, S. Kartmann, K. Thiemann, G. Miotto, A. Niemann, S. Klein, G. Ratering, J. LöttersCalibration methods for flow rates down to 5 nL/min and validation methodology 2022 Biomed. Eng.-Biomed. Tech. K. Tröndle, G. Miotto, L. Rizzo, R. Pichler, F. Koch, P. Koltay, R. Zengerle, S. S. Lienkamp, S. Kartmann, S. ZimmermannDeep Learning-Assisted Nephrotoxicity Testing with Bioprinted Renal Spheroids 2022 Int. J. Bioprint , Band : 8, Nummer : 2, Seite : 528 G. Miotto, K. Thiemann, M. Rombach, R. Zengerle, S. KartmannHolographic PIV/PTV for nano flow rates–A study in the 70 to 200 nL/min range 2022 Biomedical Engineering F. Koch, O. Thaden, S. Conrad, K. Tröndle, G. Finkenzeller, R. Zengerle, S. Kartmann, S. Zimmermann, P. KoltayMechanical properties of polycaprolactone (PCL) scaffolds for hybrid 3D-bioprinting with alginate-gelatin hydrogel 2022 J. Mech. Behav. Biomed. Mat. , Band : 130, Seite : 105219 L. Gutzweiler, S. Kartmann, K. Troendle, L. Benning, G. Finkenzeller, R. Zengerle, P. Koltay, B. Stark, S. ZimmermannLarge scale production and controlled deposition of single HUVEC spheroids for bioprinting applications 2017 Biofabrication , Band : 9 (2), Seite : 02502» Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung We present 1.) a fast and automated method for large scale production of HUVEC spheroids based on the hanging drop method and 2.) a novel method for well-controlled lateral deposition of single spheroids by drop-on-demand printing. Large scale spheroid production is achieved via printing 1536 droplets of HUVEC cell suspension having a volume of 1 µl each within 3 minutes at a pitch of 2.3 mm within an array of 48 x 32 droplets onto a flat substrate. Printing efficiencies between 97.9% and 100% and plating efficiencies between 87.3% and 100% were achieved. Harvested spheroids (consisting of approx. 250 HUVECs each) appear uniform in size and shape. After incubation and harvesting, the spheroids are deposited individually in user-defined patterns onto hydrogels using an automated drop-on-demand dispenser setup. Controlled by an image detection algorithm focusing the dispenser nozzle, droplets containing exactly one spheroid are printed onto a substrate, while all other droplets are discarded. Using this approach an array of 6 x 3 HUVEC spheroids with intermediate distances of 500 µm embedded in fibrin was generated. Successful progress of spheroid sprouting and merging of neighboring sprouts was observed during the first 72 hours of incubation indicating a good viability of the deposited spheroids. S. Kartmann, F. Koch, P. Koltay, R. Zengerle, A. ErnstSingle-use capacitive pressure sensor employing radial expansion of a silicone tube 2016 Sensor Actuat A-phys , Band : 247» Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung This paper reports on a single-use pressure sensor for medical applications. The sensor principle
makes use of the radial expansion of a silicone tube which occurs when there is a pressure
difference between the inside and the outside of the tube. The change in outer diameter is
detected by a capacitive measurement method, whereas the amplification electronics can be
separated from the tube being in contact with the fluid. This enables a cross-contamination-free
measurement system for patient near application as e.g. within infusion systems. The sensor
includes a novel highly sensitive and fast analog amplification circuit in combination with gold
electrodes fabricated in PCB technology. This circuit enables to amplify even highly dynamic
pressure changes, in the range of a few milliseconds causing capacitive changes on the electrodes
in the fF range to a readable voltage level. A functional model is developed based on flex board
technology which allows for studying the influence of the electrode geometry as well as the
material properties of the silicone tube with respect to the sensitivity of the sensor. The best
performing electrode geometry determined by experiments features a sensitivity of 0.195 fF/kPa
at a mean coefficient of variation (CV) of 6.4%, considering three individual sensor assemblies.
A sensor prototype is designed and fabricated based on the results of the investigated functional
model. The performance of the prototype is investigated experimentally in a pressure range from
0 to 40 kPa. As a result a sensitivity of 0.135 V/kPa for DI water as measurement liquid could be
achieved and a good linearity of the signal (R² = 0.996) was observed up to 35 kPa. S. Kartmann, P. Koltay, R. Zengerle, A. ErnstA Disposable Dispensing Valve for Non-Contact Microliter Applications in a 96-Well Plate Format 2015 Micromachines , Band : 6, Seiten : 423 - 436» Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung We present a miniaturized, disposable, normally-closed electromagnetic dispensing valve for the microliter range to process 96-well plates. The novel injection-molded valve is designed to fit into a 9 mm grid to realize an eight channel dispensing head, enabling the serial processing of well plates row-by-row. The presented dispensing valve design originates from a miniaturization study of a previously developed functional model. The outer diameter of the valve, including all actuating components, was reduced by 8 mm to an overall diameter of 8.5 mm without compromising the performance. Additionally, the actuation current of the valve could be reduced to 5 A. The valve is characterized for a volume range between 840 nL and 5.3 μL. The performance of the injection molded valve is competitive to commercially available dispensing valves, featuring the advantages of low fabrication costs, disposability, low mounting size, easy handling, and super silent actuation. K. Mutschler, S. Dwivedi, S. Kartmann, S. Bammesberger, P. Koltay, R. Zengerle, L. TanguyMulti physics network simulation of a solenoid dispensing valve 2014 Mechatronics , Band : 24, Seiten : 209 - 221» Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung significant
effects in a complete technical system. In a solenoid dispensing valve the involved physical effects
are electro-magnetic (coil and magnet interaction), fluid flow and fluid structure interaction. It is challenging
and time consuming to establish a full model description of these different effects even by using
the most up-to-date Computational Fluid Dynamics (CFDs) software tools. This article therefore presents
an alternative approach using network simulation methods for modelling of a dispensing valve using the
simulation software SABER (Synopsys). To create the model, the different parts of the valve and the relevant
physical effects occurring therein are described by partial differential equations and implemented
as lumped elements. The lumped elements are then linked together to form a complete model of the dispensing
valve including electrical, mechanical and fluid dynamic properties. A comparison with experimental
data obtained from a real valve is presented at the end of the paper to discuss and validate the
model. In particular the correct prediction of the dispensed liquid volume in dependence of the main
parameters like pressure and opening time are considered. Using ab initio simulation deviations of the
predicted dispensed liquid volume from the experimental results in the range 0.65–7.4% was found for
different actuating pressures at valve opening times larger than 20 ms. S. Bammesberger, S. Kartmann, L. Tanguy, D. Liang, K. Mutschler, A. Ernst, R. Zengerle, P. KoltayA Low-Cost, Normally Closed, Solenoid Valve for Non-Contact Dispensing in the Sub-μL Range 2013 Micromachines , Band : 4, Seiten : 9 - 21» Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung We present a disposable, normally closed, non-contact dispensing valve for the sub-μL range. The miniaturized solenoid valve (diameter: 8 mm, height: 27.25 mm) is compatible to standard Luer-Lock interfaces. A highly dynamic actuation principle enables opening times down to 1 ms. The dispensing performance was evaluated for water (η = 1.03 mPas) and a 66% (w/w) glycerol/water solution (η = 16.98 mPas), at pressures varying from 200 to 800 mbar. The experimentally determined minimal dispensing volume was 163 nL (CV 1.6%) for water and 123 nL (CV 4.5%) for 66% (w/w) glycerol/water. The low-cost polymer valve enables high precision dispensing of liquid volumes down to the lower end of the sub-μL range comparable to high-end non-disposable micro-dispensing valves.
Vorträge Jahre: 2014 | alle anzeigen zurück zur Übersicht aller Publikationen S. Kartmann, A. Ernst, R. Zengerle, P. KoltayE-DosiS: Einweg-Dosiersystem mit intelligenter Sensorik 2014 Clusterkonferenz MicroTEC Südwest, Freiburg, 05.-06.05.2014
Konferenzbeiträge Jahre: 2023 |
2022 |
2021 |
2019 |
2018 |
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2012 | alle anzeigen zurück zur Übersicht aller Publikationen V. Zieger, D. Frejek, S. Zimmermann, P. Koltay, R. Zengerle, S. KartmannA novel platform for automated and efficient handling of scaffold-free 3D cell-culture models enables well-controlled large-scale 3D in vitro drug screening 2023 SLAS 2023 Conference and Exhibition, San Diego, CA, USA, 25.02. - 01.03.2023 V. Zieger, E. Wöhr, S. Zimmermann, D. Frejek, P . Koltay, R. Zengerle, S. KartmannAutomated large scale spheroid generation via hanging drop and efficient transfer into physiological mimicking microenvironment 2023 Transducers, Kyoto/Japan, May 25-29, 2023 Z. Shu, S. Hennig, P. Koltay, S. Kartmann, F. von Stetten, R. ZengerleAutomated sample preparation platform for protein
diagnostics based on open microfluidics electrophoresis 2023 Black Forest Nanopore Meeting, Freiburg, 06.-09.11.2023 Z. Khan, P. Koltay, R. Zengerle, S. Kartmann, Z. ShuDirect conductive metal printing for one step fabrication of hybrid flexible electronics 2023 inno LAE 2023, Cambridge, UK, 21. – 23. Feb. 2023 Z. Khan, D. Gururajan, D. Straubinger, P. Koltay, S. Kartmann, R. Zengerle, Z. ShuHybrid 3D-printing of molten metal microdroplets and polymers for prototyping of printed circuit boards with integrated electrical energy storage systems 2023 Transducers, Kyoto/Japan, May 25-29, 2023 C. Engelmann, C. Kleber, Y. Kaku, T.-T. Truong, N. Klatt, P. Jülg, T. Ensslen, P. Jain, J. Schwaiger, S. Kartmann, T. Hutzenlaub, A. SchreiberProtein Sample Preparation for Nanopore Technology 2023 Black Forest Nanopore Meeting, Freiburg, 06.-09.11.2023 T. Tu-Truong, Y. Kaku, S. ElGenk, M. Bösenberg, H. Sültmann, T. Gemoll, N. von Bubnoff, E. Dazert, L. Kubetzko, S. Derer, M. Oberländer, A. Katalinic, R. Deck, C. Sina, H. Busch, S. Kartmann, J. Lüddecke, T. Hutzenlaub, N. Paust, P. JuelgRobotic centrifugal microfluidics: a novel automation platform for large sample volume applications demonstrated by cell-free DNA isolation 2023 MicroTAS 2023, Katovice/Poland, 15.-19.10.2023 V. Zieger, D. Frejek, S. Zimmermann, P. Koltay, R. Zengerle, S. KartmannSelective high-throughput deposition of single spheroids towards automated 3D in vitro cell culture 2023 3D Cell Culture 2023, Freiburg, 17. - 19.04.2023 Z. Khan, R. Zengerle, P. Koltay, S. Kartmann, Z. Shu3D printed single-layer functional PCB via digital hybrid printing of polymer and molten metal 2022 5th International Conference on 3D Printing & Bioprinting, ΑΙ, Digital and Additive Manufacturing (I3D22) L. Riek, F. Koch, D. Frejek, L. Zausch, R. Zengerle, P. Koltay, S. Kartmann, S. ZimmermannA Bioprinting Fidelity Imager (BioFI) for a standardized characterization of bioprinting processes 2022 SLAS Europe 2022 Conference and Exhibition, Dublin, Ireland, May 26, 2022 Z. Khan, P. Koltay, R. Zengerle, S. Kartmann, Z. ShuDirect printing of molten solder via StarJet technology in Flexible Hybrid Electronics 2022 Flex Conference & Expo, San Francisco, USA, July 11-14, 2022 V. Zieger, D. Frejek, G. Miotto, L. Riek, S. Zimmermann, P. Koltay, R. Zengerle, S. KartmannSelective and automated high-throughput deposition of spheroids for scalable 3D-bioprinting 2022 Biofabrication 2022, Pisa, Italy, September, 25-28, 2022 V. Zieger, D. Frejek, L. Riek, R. Zengerle, S. KartmannSelective high-throughput deposition of microtumors for in vitro studies on 3D tumor models 2022 SLAS Europe 2022 Conference and Exhibition, Dublin, Ireland, May 26, 2022 F. Koch, L. Riek, D. Frejek, L. Zausch, S. Zimmermann, S. Kartmann, R. Zengerle, A. Osorio-Madrazo, P. KoltayTowards standardized characterization of droplet-based bioprinting processes 2022 Biofabrication 2022, Pisa, Italy, September, 25-28, 2022 J. Weygant, F. Koch, K. Troendle, G. Finkenzeller, R. Zengerle, S. Kartmann, S. Zimmermann, P. KoltayDrop-on-Demand Bioprinting Approach For Precise
Alignment and Interaction Studies of Different Cell Types 2021 International Conference on Biofabrication, Australia, 27. – 29.09.2021 (online) S. Kartmann, D. Kopp, M. Masoumi, R. Zengerle, H. Zappe, P. KoltayThermischer Einweg-Strömungssensor auf Basis einer flexiblen Polyimid-Folie 2019 MicroTEC Südwest Clusterkonferenz, Freiburg, 20.-21.03.2019 » Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung --- S. Nessler, S. Kartmann, L. Mutter, C. Grandauer, M. Marx, R. Zengerle, Y. ManoliA Capacitive Readout Circuit for a Disposable Low-Cost Pressure and Flow Sensor with
200 Pa or 170 nl/s Resolution
2019 IEEE Sensors, 27. – 30. October 2019, Montreal / Canada K. Tröndle, S. Kartmann, L. Gutzweiler, R. Zengerle, P. Koltay, S. ZimmermannBioprinting with spheroids: Automated large-scale production and deposition 2018 3D Cell Culture 2018, 5. - 7. Juni 2018, Freiburg S. Kartmann, F. Koch, A. Ernst, R. Zengerle, P. KoltayA single-use in-line flow sensor fore closed-loop controlled precise non-contact liquid dispensing 2017 MFHS, Twente / The Netherlands, 04. - 06.10.2017 » Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung This paper reports on a closed-loop controlled non-contact
liquid dispensing system. The system employs a control algorithm
and consists of a single-use in-line flow sensor and a
disposable electromagnetic dispensing valve. By measuring
the flow rate in real time, the system can control the opening
time of the valve and is thus able to react to potential environmental
influences such as pressure or temperature fluctuations.
Furthermore, the system has the advantage that all
fluid-carrying components can be exchanged after use, therefore
cost intensive cleaning steps can be avoided. The precision
of the system was demonstrated experimentally for different
volumes in the range of 2:8 ml to 4:9 ml. The resulting
coefficient of variation (CV) was below 2 %. S. Kartmann, F. Koch, R. Zengerle, P. Koltay, A. ErnstSingle-use flow sensor based on the differential pressure principle employing the radial expansion of a low-cost silicone tube 2017 Transducers 2017, Kaohsiung/Taiwan, 18. – 22.06.2017 » Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung For the first time, we present a flow sensor
consisting of low-cost consumable parts, to
minimize the risk of cross-contamination in
medical applications, for example. For our
sensor, the consumable component consists of two
simple silicone tubes and a capillary, which can
be exchanged easily and cost-effectively after use.
We characterized the flow sensor in the range
from 0 up to 50 μL/s. The sensor showed a good
consistency with the reference sensor, a linear
correlation coefficient of minimal R(x,y) = 0.98
and a sensor resolution of 0.4 μL/s. F. Koch, S. Kartmann, R. Zengerle, A. Ernst, P. KoltayViscosity determination by the in-line measurement of liquid flow time through a cylindrical tube
2017 MFHS, Twente / The Netherlands, 04. - 06.10.2017 » Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung This paper demonstrates a novel in-line viscosity measurement concept, with reduced effort compared to common approaches. It determines the transition-time of a liquid/gas front to fill a well-defined capillary. In contrast to previous work [1] this paper measures the transition-time for the first time in a non-contact capacitive way.
The method enables to determine the dynamic viscosity with a mean coefficient of variation (CV) of 8.4% for a measuring range between 1 and 20 mPa s and showed to be valuable as a fast viscosity calibration for flow sensors using the differential pressure principle. S. Kartmann, P. Koltay, R. Steger, R. Zengerle, A. ErnstInjection-molded, consumable, non-contact dispensing valve
applicable for 96-well plate processing 2015 SLAS 2015, 4th Annual Conference and Exhibition in Washington, DC, USA, 07.-11.02.2015 » Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung The presented work focusses on the fabrication by an injection molding process of a cost-effective, disposable, non-contact dispensing valve for cross-contamination free applications. The valve allows a super silent multi-channel processing of well plates in standard 96-well format. The implementation of a design capable for the fabrication in injection molding could be realized with performance improvements concerning reproducibility and with enhanced handling properties.
The requirements of industry and research on the dispensing performance of liquid handling systems in terms of minimal dosing volume, precision and accuracy as well as throughput and analysis costs are increasingly growing. Also the risk of cross-contamination implies the demand of disposable components and non-contact technologies. Since such systems are hardly available on market, we focus on the implementation of a system providing a comprehensive solution for the entire set of industrial specifications.
The developed functional model of the valve presented in [1] was fabricated by a 3D printing process to approach the given requirements. This valve revealed several disadvantages, like it’s large outer diameter with an overall size of 16 mm, the huge temperature coupling into the fluid induced by required high coil currents (I = 10 A) which affects the viscosity of the fluid and leakage problems of the two-part valve body assembly for actuation pressures above 1.5 bar.
To enable a multichannel application for parallel filling of 96-well plates, the dimensions of the valve were optimized to fit in a 9 mm pitch. Therefore, the outer diameter of the valve including external actuating coil was reduced from 16 mm to 8.5 mm. The smaller dimensions allowed a reduction of the actuation current by 60%. Consequently, the heat transfer, thus the effect on the dispensing performance, could be reduced enormously. In contrast to the functional model, the novel valve consists of a one-part valve body, which solves the previous leakage problem. An inserted stopper defines the maximum plunger movement. The entire valve design is adapted to the fabrication by an injection molding process in polypropylene to implement cost effectivity and the compatibility to medical applications. It is now possible to dispense target volumes with CV’s less than 2% for a volume range between 230 nL and 2 µL and CV < 1% for a volume range between 2 µL and 20 µL. Furthermore, we were able to adjust the desired volume range and flow rate by using nozzles with different dimensions.
In conclusion, the performance is very comparable to similar commercially available systems with the advantage, that the material costs stay under 1 €. The reduced size and the standard Luer-Lock interface make the dispensing valve compatible to a wide range of applications in biomedical technology. S. Kartmann, P. Koltay, R. Zengerle, A. ErnstPressure transducer for medical applications 2015 BMT 2015 (49. Jahrestagung der Deutschen Gesellschaft für Biomedizinische Technik (DGBMT) im VDE), 16.-18. September, Lübeck » Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung Particularly in the field of medical applications, full- or partly disposable pressure sensors are needed to implement cross-contamination-free monitoring solutions e.g. for infusion systems or process control for in vitro diagnostic (IVD) applications. The demand for reliable, single-use technologies increases rapidly, driving forward the investigation of innovative measuring principles. S. Kartmann, P. Koltay, R. Zengerle, A. ErnstPressure transducer for medical applications employing radial
expansion of a low-cost polymer tube 2015 Eurosensors 2015, Freiburg, 06.- 09.09.2015 Procedia Engineering , Band : 120, Seiten : 1213 - 1216» Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung We present a low-cost pressure transducer for medical applications. It’s based on the radial expansion of a liquid filled elastic
tube, which is detected by a capacitive measuring principle in a non-contact manner. For optimization we investigated the
influence of the number and arrangement of the measurement electrodes, their length as well as the gap separating them. The
optimized electrode geometry features a sensitivity of 0.195 fF/103 Pa and a corresponding mean coefficient of variation (CV) of
6.4% considering three individual transducer assemblies. The transducer performance was investigated applying pressures up to
50 x 103 Pa. Due to a viscoelastic behavior of silicone material we determined a hysteresis effect which implied a maximum error
of 1.13 fF implying a pressure error of 5.8 x 103 Pa. S. Kartmann, A. Ernst, R. Zengerle, P. KoltayA disposable, dispensing valve for non-contact microliter applications in 96-well plate format 2014 2nd MFHS Conference 2014, Freiburg, 08 - 10.Okt. 2014 , Seiten : 65 - 68» Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung We present a miniaturized, disposable dispensing
valve for the microliter range, applicable as
consumable to process 96-well plates. The new valve
design is adapted to fit into a 9 mm grid and derives
from the miniaturization study of a previous
functional model [1]. The outer diameter of the valve,
including actuating coil, was reduced from 16 mm to
8.5 mm without performance restrictions, thus made
compatible for 96-well plate processing. Also the
actuation current was reduced from 10 A to 5 A. The
valve enables the dosage of target volumes in the
range between 230 nL and 5 μL with coefficients of
variation (CVs) below 2%. The current performance
coincides with similar commercially available systems
with the decisive advantage of material costs below
1 €. S. Kartmann, M. Kellermann, R. Zengerle, P. Koltay, A. ErnstSimulation study of a novel capacitive pressure sensor concept based on the geometrical deformation of an elastic measuring cell 2014 2nd MFHS Conference 2014, Freiburg, 08 - 10.Okt. 2014 , Seiten : 118 - 121» Kurzfassung anzeigen « Kurzfassung verbergen Kurzfassung We present the simulative investigation of design
rules for a novel pressure transducer to realize a
disposable pressure sensor for medical applications.
The presented simulation study is based on a threedimensional
CFD-ACE+ model, which describes the
expansion behavior of tubular, elastic measuring cells
at varying inner hydrostatic pressures for and different
boundary conditions like material properties or size.
The elastic measuring cell is exposed to an electric
field which is sensitive to the implied geometrical
deformation, thus transduces a pressure change to a
change in capacitance. S. Bammesberger, S. Kartmann, L. Tanguy, D. Liang, K. Mutschler, A. Ernst, P. Koltay, R. ZengerleA low-cost, normally closed, solenoid valve for non-contact dispensing in the sub-µL range 2012 1st International Conference on Microfluidic Handling Systems, October 2012, Enschede, The Netherlands , Seiten : 156 - 159 Credits: SILK Icons by http://www.famfamfam.com/lab/icons/silk/