We are proud to host a talk from Fabiana Arduini on Electrochemical paper-based (bio)sensors. The talk will be held at 27th November, 16:30 in the Etos room at Teknikringen 42, Floor 5. For more information, see the abstract below.
Electrochemical paper-based (bio)sensors
Fabiana Arduini Department of Chemical Science and Technologies, Tor Vergata University, Rome, Italy SENSE4MED, Rome, Italy. E-mail: email@example.com
Paper-based colorimetric assays have been widely reported in the literature as costeffective techniques, not requiring additional components (i.e. pump) for microfluidic handling of the solution (and reagents) and additionally avoiding certain sample pretreatments owing to the filtering property of the paper. In the last decade, the utility of paper as electrode-active support has been exploited in the electroanalysis field, combining inherit advantages of paper with the features of electrochemistry, such high sensitivity, selectivity and the capability to work in complex matrices. Herein, we present novel reagentless paper-based electrochemical sensors, which have been manufactured with a simple and inexpensive approach. These have been applied to the determination of several ions, including phosphate, chloride and zinc. By following three easy steps –consisting of wax patterning, paper chemical modification, and electrode screen-printing– the filter paper provides an effective electroanalytical platform to sense phosphate ions in standard solutions and in real samples (river water) as well as chloride ions in serum and sweat samples. Beside the filter paper, also the regular office paper (with different rheological proprieties) has been investigated as substrate to print the electrode. Thus, an office-paper based sensor has been developed for monitoring of Zn(II) in biological fluids. Overall, particular features of paper, such as filtering and loading properties as well as foldability, have been exploited to design smart electrochemical tools in the form of origami paperbased (bio)sensors for the detection of pesticides and chemical warfare agents.
The document with all the information can be found below: