| 1. |
- Andersson Ersman, Peter, et al.
(författare)
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Batteryless Electronic System Printed on Glass Substrate
- 2021
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Ingår i: Electronic Materials. - : MDPI AG. - 2673-3978. ; 2:4
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Tidskriftsartikel (refereegranskat)abstract
- Batteryless hybrid printed electronic systems manufactured on glass substrates are reported. The electronic system contains a sensor capable of detecting water, an electrochromic display, conductors, a silicon chip providing the power supply through energy harvesting of electromagnetic radiation, and a silicon-based microcontroller responsible for monitoring the sensor status and the subsequent update of the corresponding display segment. The silicon-based components were assembled on the glass substrate by using a pick and place equipment, while the remainder of the system was manufactured by screen printing. Many printed electronic components, often relying on organic materials, are sensitive to variations in environmental conditions, and the reported system paves the way for the creation of electronic sensor platforms on glass substrates for utilization in see-through applications in harsh conditions. Additionally, this generic hybrid printed electronic sensor system also demonstrates the ability to enable autonomous operation through energy harvesting in future smart window applications.
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| 2. |
- Armgarth, Astrid, et al.
(författare)
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A digital nervous system aiming toward personalized IoT healthcare
- 2021
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Ingår i: Scientific Reports. - : NATURE RESEARCH. - 2045-2322. ; 11:1
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Tidskriftsartikel (refereegranskat)abstract
- Body area networks (BANs), cloud computing, and machine learning are platforms that can potentially enable advanced healthcare outside the hospital. By applying distributed sensors and drug delivery devices on/in our body and connecting to such communication and decision-making technology, a system for remote diagnostics and therapy is achieved with additional autoregulation capabilities. Challenges with such autarchic on-body healthcare schemes relate to integrity and safety, and interfacing and transduction of electronic signals into biochemical signals, and vice versa. Here, we report a BAN, comprising flexible on-body organic bioelectronic sensors and actuators utilizing two parallel pathways for communication and decision-making. Data, recorded from strain sensors detecting body motion, are both securely transferred to the cloud for machine learning and improved decision-making, and sent through the body using a secure body-coupled communication protocol to auto-actuate delivery of neurotransmitters, all within seconds. We conclude that both highly stable and accurate sensing-from multiple sensors-are needed to enable robust decision making and limit the frequency of retraining. The holistic platform resembles the self-regulatory properties of the nervous system, i.e., the ability to sense, communicate, decide, and react accordingly, thus operating as a digital nervous system.
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| 3. |
- Beni, Valerio, 1972-, et al.
(författare)
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Printed electrochemical instruments for biosensors
- 2015
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Ingår i: ECS Transactions. - : The Electrochemical Society. - 9781607685395 ; , s. 1-13
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Konferensbidrag (refereegranskat)abstract
- Mobile diagnostics for healthcare, food safety and environmental monitoring, demand a new generation of inexpensive sensing systems suitable for production in high volume. Herein we report on the development of a new disposable electrochemical instrument exploiting the latest advances in printed electronics and printed biosensors. The current system is manufactured under ambient conditions with all interconnections printed; electrochemical measurements and data elaboration are realized by the integration onto the platform of two chips: a MICROCHIP-PIC24F16KA101 and a Texas Instrument's LMP91000. A PEDOT.PSS vertical electrochromic display (VECD) is also incorporated into the system to visualize the data. A printed Enfucell 3V manganese dioxide battery was used to deliver the required power. Finally, in order to demonstrate the utility of the system, screen-printed sensors for the detection of glucose were added and the performance of the overall system was evaluated.
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| 4. |
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| 5. |
- Turner, Anthony, 1950-, et al.
(författare)
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Printed Paper- and Plastic-based Electrochemical Instruments for Biosensors
- 2014
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Ingår i: 24th Anniversary World Congress on Biosensors – Biosensors 2014. - : Elsevier.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Mobile diagnostics for healthcare, food safety and environmental monitoring demand a new generation of inexpensive sensing systems that can be produced in high volume to open up new market niches. By combining the virtues of printed biosensors and paper-based diagnostics, we have introduced a new disposable instrument range exploiting the latest advances in printed electronics. This approach combines the sophistication of advanced electrochemical biosensors with a simple manufacturing technique to create a use-and-throw instrument. The system is manufactured in ambient atmosphere. All interconnections are printed and an anisotropic conductive glue is used for interconnection between the chip and conductors. The current chip is MICROCHIP-PIC24F16KA101 and this can be upgraded for advanced electroanalysis using a further chip such as the Texas Instrument LMP91000. The Enfucell 3V manganese dioxide battery is from our partner company. A vertical electrochrome display (VECD) is incorporated in the demonstrator. The display is produced in house by screen printing. The active electrode is made from a PEDOT:PSS ink and serves both as electro-chromic material and electrical conductor. A solid polymer electrolyte is printed on top of the active electrode and UV cured. The final layer is a screen-printed carbon-based top electrode. When a voltage is applied across the electrodes, a redox reaction occurs, in which the reduced electrode becomes dark blue. The display is paper-like in the sense that it works in reflective mode, that is, no backlight is used to light up the pixels. Screen-printed biosensors are then added as required based on Electrodag PF-407A ink (Henkel) incorporating stabilisers such as lacititol, detergent and binders together with a Ag/AgCl reference electrode. Performance of the overall system rivals that of current hand-held devices, but can be sold at a fraction of their cost.
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