Fabrication of electroosmotic micropump using PCB and SU-8

Gaßmann, Stefan; Pagel, Lienhard; Luque, A.; Perdigones, Francisco; Aracil, Carmen

doi:10.1109/iecon.2012.6389259

Cited by 7 publications

(6 citation statements)

References 15 publications

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“…The fabrication of these electrodes is also based on the typical photolithographic process and etching of the copper layer. Devices for fluid manipulation using electro-osmotic flow [ 142 , 143 , 144 ] have been developed, as in Figure 12 B. The metal electrodes have been integrated in devices based on electrowetting on a dielectric (EWOD).…”

Section: Printed Circuit Boards For Biomedical Applicationsmentioning

confidence: 99%

Printed Circuit Boards: The Layers’ Functions for Electronic and Biomedical Engineering

Perdigones

Quero

2022

Micromachines

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This paper describes the fabrication opportunities that Printed Circuit Boards (PCBs) offer for electronic and biomedical engineering. Historically, PCB substrates have been used to support the components of the electronic devices, linking them using copper lines, and providing input and output pads to connect the rest of the system. In addition, this kind of substrate is an emerging material for biomedical engineering thanks to its many interesting characteristics, such as its commercial availability at a low cost with very good tolerance and versatility, due to its multilayer characteristics; that is, the possibility of using several metals and substrate layers. The alternative uses of copper, gold, Flame Retardant 4 (FR4) and silver layers, together with the use of vias, solder masks and a rigid and flexible substrate, are noted. Among other uses, these characteristics have been using to develop many sensors, biosensors and actuators, and PCB-based lab-on chips; for example, deoxyribonucleic acid (DNA) amplification devices for Polymerase Chain Reaction (PCR). In addition, several applications of these devices are going to be noted in this paper, and two tables summarizing the layers’ functions are included in the discussion: the first one for metallic layers, and the second one for the vias, solder mask, flexible and rigid substrate functions.

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Section: Printed Circuit Boards For Biomedical Applicationsmentioning

confidence: 99%

Printed Circuit Boards: The Layers’ Functions for Electronic and Biomedical Engineering

Perdigones

Quero

2022

Micromachines

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“…The fabrication of these electrodes is also based on the typical photolithographic process and etching of the copper layer. Devices for fluid manipulation using electroosmotic flow [142][143][144] have been developed, as in Figure 12B. The metal electrodes have been integrated in devices based on electrowetting on a dielectric (EWOD).…”

Section: Fluid Manipulation Pcb Devicesmentioning

confidence: 99%

Lab-on-PCB Devices

2022

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“…Several electroosmotic pumps have been integrated on PCBs—for example, the prototype reported in [ 69 ], which was fabricated using a PCB and SU-8; the Flame Retardant 4 (FR4) was the substrate, SU-8 was the material chosen with which to fabricate the microchannels and microchambers, and the copper layer was used for building the electrodes, electrical connections, and pads. The device is inexpensive but the materials make the mass production difficult.…”

Section: Electroosmotic Flowmentioning

confidence: 99%

Lab-on-PCB and Flow Driving: A Critical Review

Perdigones

2021

Micromachines

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Lab-on-PCB devices have been developed for many biomedical and biochemical applications. However, much work has to be done towards commercial applications. Even so, the research on devices of this kind is rapidly increasing. The reason for this lies in the great potential of lab-on-PCB devices to provide marketable devices. This review describes the active flow driving methods for lab-on-PCB devices, while commenting on their main characteristics. Among others, the methods described are the typical external impulsion devices, that is, syringe or peristaltic pumps; pressurized microchambers for precise displacement of liquid samples; electrowetting on dielectrics; and electroosmotic and phase-change-based flow driving, to name a few. In general, there is not a perfect method because all of them have drawbacks. The main problems with regard to marketable devices are the complex fabrication processes, the integration of many materials, the sealing process, and the use of many facilities for the PCB-chips. The larger the numbers of integrated sensors and actuators in the PCB-chip, the more complex the fabrication. In addition, the flow driving-integrated devices increase that difficulty. Moreover, the biological applications are demanding. They require transparency, biocompatibility, and specific ambient conditions. All the problems have to be solved when trying to reach repetitiveness and reliability, for both the fabrication process and the working of the lab-on-PCB, including the flow driving system.

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Fabrication of electroosmotic micropump using PCB and SU-8

Cited by 7 publications

References 15 publications

Printed Circuit Boards: The Layers’ Functions for Electronic and Biomedical Engineering

Printed Circuit Boards: The Layers’ Functions for Electronic and Biomedical Engineering

Lab-on-PCB Devices

Lab-on-PCB and Flow Driving: A Critical Review

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