Blar i NTNU Open på forfatter "Johannessen, Erik Andrew"
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Improving the Dynamic Sensing Range of Electrochemical Enzymatic Lactate Biosensors for Sweat Monitoring Applications
Leinebø, Charlotte Amalie (Master thesis, 2023)Svette er en lett tilgjengelig kroppsvæske for ikke-invasiv og kontinuerlig sanntidsmåling av laktat under fysisk aktivitet. Elektrokjemiske enzym-baserte biosensorer er lovende for integrering i en bærbar sensorenhet, da ... -
Long-term stability of screen-printed pseudo-reference electrodes for electrochemical biosensors
Søpstad, Sindre; Johannessen, Erik Andrew; Seland, Frode; Imenes, Kristin (Journal article; Peer reviewed, 2018)Pseudo reference electrodes forms an essential part of electrochemical transducers, where they are used to maintain a reference potential for the system. Yet, little is known about their long-term stability, and any drift ... -
A micro fuel cell for abiotical catalysis of glucose
Do, Uyen Phuong; Seland, Frode; Johannessen, Erik Andrew (Peer reviewed; Journal article, 2020)A miniaturised abiotical fuel cell designed for operation inside a physiologically relevant mixed fuel environment of dissolved di-oxygen (DO) and glucose, have been realized by embedding the glucose sensitive anode below ... -
Raney-platinum thin film electrodes for the catalysis of glucose in abiotically catalyzed micro-glucose fuel cells
Do, Uyen Phuong; Seland, Frode; Wang, Kaiying; Johannessen, Erik Andrew (Journal article; Peer reviewed, 2019)Fuel cells capable of synthetic glucose catalysis have revolved around the implementation of abiotic catalysts that require extreme acid and alkaline environments. These are not compatible with implantable medical sensor ... -
The Characterisation and Quantification of Immobilised Concanavalin A on Quartz Surfaces Based on The Competitive Binding to Glucose and Fluorescent Labelled Dextran
Hoang, Trinh Bich; Stokke, Bjørn Torger; Hanke, Ulrik; Johannessen, Agne; Johannessen, Erik Andrew (Journal article; Peer reviewed, 2019)The competition between various carbohydrates in the binding to Concanavalin A (Con A) can be exploited in gravimetric microsensors that detect changes in mass or viscoelasticity as a function of glucose concentration. ... -
The real area of nanoporous catalytic surfaces of gold and palladium in aqueous solutions
Do, Uyen Phuong; Seland, Frode; Johannessen, Erik Andrew (Journal article; Peer reviewed, 2018)The determination of the real, or active, area of a catalytic surface is a key requirement to understand or quantify parameters related to its electrochemical behavior. There are several experimental methods available, but ... -
Thin film nanoporous electrodes for the selective catalysis of oxygen in abiotically catalysed micro glucose fuel cells
Do, Uyen Phuong; Seland, Frode; Maharbiz, Michel M.; Wang, Kaiying; Johannesen, Øivind; Johannessen, Erik Andrew (Journal article; Peer reviewed, 2016)Selective reduction of oxygen is an important property of fuel cells designed to operate in a mixed fuel environment containing both oxidizing and reducing reactants. This would be of particular importance in the design ...