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Zinc Oxide-Based Self-Powered Potentiometric Chemical Sensors for Biomolecules and Metal Ions
Linköping University, Department of Science and Technology. Linköping University, Faculty of Science & Engineering. National University of Science and Technology, Pakistan.
Govt Coll Women University, Pakistan.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-6235-7038
2017 (English)In: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 17, no 7, 1645Article, review/survey (Refereed) Published
Abstract [en]

Advances in the miniaturization and portability of the chemical sensing devices have always been hindered by the external power supply problem, which has focused new interest in the fabrication of self-powered sensing devices for disease diagnosis and the monitoring of analytes. This review describes the fabrication of ZnO nanomaterial-based sensors synthesized on different conducting substrates for extracellular detection, and the use of a sharp borosilicate glass capillary (diameter, d = 700 nm) to grow ZnO nanostructures for intracellular detection purposes in individual human and frog cells. The electrocatalytic activity and fast electron transfer properties of the ZnO materials provide the necessary energy to operate as well as a quick sensing device output response, where the role of the nanomorphology utilized for the fabrication of the sensor is crucial for the production of the operational energy. Simplicity, design, cost, sensitivity, selectivity and a quick and stable response are the most important features of a reliable sensor for routine applications. The review details the extra- and intra-cellular applications of the biosensors for the detection and monitoring of different metallic ions present in biological matrices, along with the biomolecules glucose and cholesterol.

Place, publisher, year, edition, pages
MDPI AG , 2017. Vol. 17, no 7, 1645
Keyword [en]
zinc oxide nanostructures; self-powered sensor; potentiometric chemical sensors; glucose; cholesterol; metallic ions
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-140806DOI: 10.3390/s17071645ISI: 000407517600184PubMedID: 28753916OAI: oai:DiVA.org:liu-140806DiVA: diva2:1140813
Available from: 2017-09-13 Created: 2017-09-13 Last updated: 2017-09-13

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