TY - JOUR A1 - Hubl, Moritz A1 - Atta, Raghied M. A1 - Kaufhold, Robin A1 - Wang, Bei A1 - Ngo, Ha Duong ED - Chronopoulou, Laura T1 - Nano-Materials-Based Printed Glucose Sensor for Use in Incontinence Products for Health-Care Applications JF - Micro N2 - Our recent development of a wireless humidity sensor system embedded in incontinence products enables new sensor applications to diagnose and supervise geriatric diseases (i.e., age-related diabetes mellitus type II). The measurement of glucose in urine, so-called glucosuria, is an early indicator for an incipient diabetes mellitus disease, whose symptoms are often age-related but misjudged. In this paper, an incontinence glucose sensor is printed with biocompatible ink and Prussian blue as an electron mediator on foil and functionalized with immobilized glucose oxidase. Inkjet printing of multiple layers of Nafion prevents large interference substances from diffusing into the measuring electrode and allows precise adjustment of the linear working range, which is significantly different from blood glucose measurement. Performance tests show the potential to detect minimum glucose values and store the sensor over a prolonged period at room temperature. The printed glucose sensor can be embedded into the absorber material of incontinence products, where capillary forces transport the urine analyte to the detection area. An attached readout module with an integrated potentiostat measures the glucose concentration in urine, which is transmitted wirelessly with incontinence events and stored in a cloud service for further analysis by medical staff and care workers. KW - Glucose-Sensor KW - printed glucose sensor KW - urine glucose sensor KW - printed electronics KW - Prussian blue mediator KW - electrochemic biosensor KW - glucosuria KW - diabetes mellitus KW - incontinence sensor KW - Polymerelektronik KW - Inkontinenz Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:523-18074 SN - 2673-8023 VL - 3 IS - 2 SP - 521 EP - 536 PB - MDPI ER - TY - JOUR A1 - Hubl, Moritz A1 - Atta, Raghied M. A1 - Kaufhold, Robin A1 - Wang, Bei A1 - Ngo, Ha Duong ED - Chronopoulou, Laura T1 - Nano-Materials-Based Printed Glucose Sensor for Use in Incontinence Products for Health-Care Applications JF - Micro N2 - Our recent development of a wireless humidity sensor system embedded in incontinence products enables new sensor applications to diagnose and supervise geriatric diseases (i.e., age-related diabetes mellitus type II). The measurement of glucose in urine, so-called glucosuria, is an early indicator for an incipient diabetes mellitus disease, whose symptoms are often age-related but misjudged. In this paper, an incontinence glucose sensor is printed with biocompatible ink and Prussian blue as an electron mediator on foil and functionalized with immobilized glucose oxidase. Inkjet printing of multiple layers of Nafion prevents large interference substances from diffusing into the measuring electrode and allows precise adjustment of the linear working range, which is significantly different from blood glucose measurement. Performance tests show the potential to detect minimum glucose values and store the sensor over a prolonged period at room temperature. The printed glucose sensor can be embedded into the absorber material of incontinence products, where capillary forces transport the urine analyte to the detection area. An attached readout module with an integrated potentiostat measures the glucose concentration in urine, which is transmitted wirelessly with incontinence events and stored in a cloud service for further analysis by medical staff and care workers. KW - Glucose KW - printed glucose sensor KW - urine glucose sensor KW - printed electronics KW - Prussian blue mediator KW - electrochemic biosensor KW - glucosuria KW - diabetes mellitus KW - incontinence sensor KW - Harn KW - 3D-Druck KW - Biosensor KW - Glucose-Sensor KW - Glucosurie KW - Diabetes mellitus KW - Harninkontinenz Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:523-17140 SN - 2673-8023 VL - 3 IS - 2 SP - 521 EP - 536 PB - MDPI ER - TY - JOUR A1 - Wang, Bei A1 - Baeuscher, Manuel A1 - Hu, Xiaodong A1 - Woehrmann, Markus A1 - Becker, Katharina A1 - Juergensen, Nils A1 - Hubl, Moritz A1 - Mackowiak, Piotr A1 - Schneider-Ramelow, Martin A1 - Lang, Klaus-Dieter A1 - Ngo, Ha-Duong T1 - Development and Characterization of a Novel Low-Cost Water-Level and Water Quality Monitoring Sensor by Using Enhanced Screen Printing Technology with PEDOT:PSS JF - Micromachines N2 - A novel capacitive sensor for measuring the water-level and monitoring the water quality has been developed in this work by using an enhanced screen printing technology. A commonly used environment-friendly conductive polymer poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) for conductive sensors has a limited conductivity due to its high sheet resistance. A physical treatment performed during the printing process has reduced the sheet resistance of printed PEDOT:PSS on polyethylenterephthalat (PET) substrate from 264.39 Ω/sq to 23.44 Ω/sq. The adhesion bonding force between printed PEDOT:PSS and the substrate PET is increased by using chemical treatment and tested using a newly designed adhesive peeling force test. Using the economical conductive ink PEDOT:PSS with this new physical treatment, our capacitive sensors are cost-efficient and have a sensitivity of up to 1.25 pF/mm. KW - water-level sensor KW - water quality monitoring KW - adhesive peeling force test KW - screen printing KW - poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) KW - conductive polymer KW - capacitive sensor Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:523-3789 SN - 2072-666X VL - 11 IS - 5 PB - MDPI ER -