By Emilia Witkowska Nery
This publication offers major units of paper-based analytical platforms. the 1st set is a platform for the research of glucose, ldl cholesterol and uric acid in organic samples, and the second one set is a state of the art digital tongue procedure for the research of drinks (mineral water, beer, wine). This thesis additionally presents an intensive evaluation of 33 equipment of enzyme immobilization on paper which were evaluated to augment the garage balance of the proposed procedure for biomarker detection. From a realistic viewpoint, this thesis covers a various set of subject matters concerning paper-based sensing, together with colorimetric and electrochemical detection equipment, assorted units of structure (spot-tests, lateral and tangential movement assays), equipment of fabrication (wax printing, slicing, impregnation with polymers), measurements in desk bound and circulate stipulations to boot machine modeling of proposed platforms and complex information research utilizing chemometric innovations. This e-book comes in handy for PhD scholars operating during this or a similar box who require specific information regarding technique and heritage to this study.
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Gimenez AJ, Yanez-Limon JM, Seminario JM (2011) ZnO-Paper Based Photoconductive UV Sensor. J Phys Chem C 282–287 39. ul Hasan K, Nur O, Willander M, Hasan K (2012) Screen printed ZnO ultraviolet photoconductive sensor on pencil drawn circuitry over paper. Appl Phys Lett 100:211104. 4720179 40. Russo A, Ahn BY, Adams JJ et al (2011) Pen-on-Paper Flexible Electronics. Adv Mater 3426–3430. 201101328 41. Leung V, Shehata A-AM, Filipe CDM, Pelton R (2010) Streaming potential sensing in paper-based microfluidic channels.
Ul Hasan K, Nur O, Willander M, Hasan K (2012) Screen printed ZnO ultraviolet photoconductive sensor on pencil drawn circuitry over paper. Appl Phys Lett 100:211104. 4720179 40. Russo A, Ahn BY, Adams JJ et al (2011) Pen-on-Paper Flexible Electronics. Adv Mater 3426–3430. 201101328 41. Leung V, Shehata A-AM, Filipe CDM, Pelton R (2010) Streaming potential sensing in paper-based microfluidic channels. Colloids Surfaces A Physicochem Eng Asp 364:16–18. 008 42. Novell M, Parrilla M, Crespo G et al (2012) Paper-based ion-selective potentiometric sensors.
Similar advantages can be cited for the time-based measurement. In this case user measures the time of the development of color in the two regions. In a device presented by Lewis et al.  the longer time needed for the second color reaction to take place indicated the higher concentration of heavy metal ions. Main disadvantage of this approach is the constant attention necessary to perform the test (up to 15 min). Electrochemical Detection The main advantage of electrochemical sensors in comparison with the optical detection is their insensitivity to interferents such as light and insoluble compounds .
Analysis of Samples of Clinical and Alimentary Interest with Paper-based Devices by Emilia Witkowska Nery