Integrated Biosensor Platform

ExpertisePrinted Sensor Platforms

Printed Sensor Platforms

- a flexible printed hybrid sensor platform

After many years of extensive R & D, within the field of Printed Electronics, done by RISE Acreo and Linköping University - a generic printed technology platform has been developed. This sustainable proof of concept uses electrically conductive materials ("inks") to print battery, sensor and several state-of-the-art, screen printed Acreo Displays, integrated with a silicon chip. The platform is a showcase of machineability - possible to produce in high-speed processes, to a low cost. The platform also illustrates Acreo’s integration and assembly capacity, ranging from printed transistors and driver design to monolithic integration. 

To create the generic sensor platform Acreo uses electrically conductive materials ("inks") to print battery, sensor and displays which are integrated with a silicon chip. Depending on what should be detected by the sensor – glucose, bacteria, UV-radiation etc. - we use different types of “sensor inks”. Below we present different versions of the sensor platform for applications within Life Science (diagnostics and monitoring), for environmental purposes and for the construction business.

The integrated biosensor

The unique all-printed biosensor concept presents a new paradigm in inexpensive biosensing devices. The integrated biosensor shown above is an entire system including power source, sensor and display all printed on a sheet of flexible plastic or paper. The sensor used today in the integrated bio demonstrator is a glucose sensor to demonstrate the possibilities of the platform. The concept can be utilized for other sensor analytes and mechanisms, including enzymatic (biological recognition and detection) or affinity with microfluidics, provided there is an electrochemical transduction mechanism.  The platform is versatile and adaptable to specific user needs and applications, including adding communication technology. 

The UV-detector

Too much ultraviolet (UV) exposure is the main cause of skin cancer. Only in United States over 1 Million people are diagnosed with skin cancer every year. Excessive UV-light can also alter immune system functions and develop cataract, a common eye disease. For people, exposed to strong sun light, the new printed UV-detector could be used as a band-aid, as a wristband or as a smart label in a sun hat.
Ultraviolet light is effective for water purification. In many developing countries the water supply is scarce and often polluted due to human activities and there is a great need to easily reduce hazardous bacteria from drinking water. Products, using UV-light for water purification, is already on the market and the new printed UV-detector could be integrated in these purification systems to monitor the UV-dose.

The innovation is a new type of ink that detect and measure UV-light directly on the printed sensor platform. The fully functional prototype is based on the integrated, printed sensor platform earlier developed by Acreo in cooperation with Linköping University and will be demonstrated at Lope-C in Munchen 27-28 May and Biosensors in Melbourne 27-30 May.

 

The technology behind

The UV-detector contains a printed area that is sensitive to UV light. The radiation is converted to an electronic signal which is proportional to UV light intensity. The result of the measurement is read directly on the display. It also gives the total dose of UV light exposure. In some applications the detector could also be combined with an alarm system when a maximum dose has been reached.

 

Printed wireless humidity sensors for buildings

Severe damage to buildings ccan be caused by a problem that is very hard to detect in time: Humidity inside walls or ceilings, or under the floor. Without a wireless sensor, measurements are impossible without causing damage to the building. The Laboratory of Organic Electronics at Linköping University, together with Acreo, PEA and the construction company Peab, have developed and patented a printed sensor label concept that aims to solve this problem. 

The system consists of printed electronic sensor labels that are mounted inside walls and floors and can be read from the outside by a dedicated handheld reader. The flexible sensor label is 6x8 cm i size , less than 1 mm in thickness and is printed on a plastic substrate in a high volume process. A large part of the sensor label is the antenna, which can be produced using Acreo's dry phase patterning (DPP) technique. After initial laboratory and field tests, the second generation of the label is now being developed, aiming towards mass production and comersialization through a spin.out company.

People

Göran Gustafsson
Department Manager
+46 (0)705 82 29 04
goran.gustafsson [at] ri.se

Tommy Höglund
Process Manager
+46 (0)72 245 46 74
tommy.hoglund [at] ri.se

Björn Norberg
Sales Manager
+46 707 671200
bjorn.norberg [at] ri.se

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