Electrochemical Biosensors Based on S-Layer Proteins
1
Department of Biochemistry, Faculty of Science, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
2
Institute for Synthetic Bioarchitectures, Department of NanoBiotechnology, BOKU - University of Natural Resources and Life Sciences, Vienna, Muthgasse 11, 1190 Vienna, Austria
3
Current address: Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, 171 21 Solna, Stockholm, Sweden
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(6), 1721; https://doi.org/10.3390/s20061721
Received: 12 February 2020 / Revised: 5 March 2020 / Accepted: 17 March 2020 / Published: 19 March 2020
(This article belongs to the Special Issue Development of Electrochemical Sensors Based on Naturally Occuring Compounds)
Designing and development of electrochemical biosensors enable molecule sensing and quantification of biochemical compositions with multitudinous benefits such as monitoring, detection, and feedback for medical and biotechnological applications. Integrating bioinspired materials and electrochemical techniques promote specific, rapid, sensitive, and inexpensive biosensing platforms for (e.g., point-of-care testing). The selection of biomaterials to decorate a biosensor surface is a critical issue as it strongly affects selectivity and sensitivity. In this context, smart biomaterials with the intrinsic self-assemble capability like bacterial surface (S-) layer proteins are of paramount importance. Indeed, by forming a crystalline two-dimensional protein lattice on many sensors surfaces and interfaces, the S-layer lattice constitutes an immobilization matrix for small biomolecules and lipid membranes and a patterning structure with unsurpassed spatial distribution for sensing elements and bioreceptors. This review aims to highlight on exploiting S-layer proteins in biosensor technology for various applications ranging from detection of metal ions over small organic compounds to cells. Furthermore, enzymes immobilized on the S-layer proteins allow specific detection of several vital biomolecules. The special features of the S-layer protein lattice as part of the sensor architecture enhances surface functionalization and thus may feature an innovative class of electrochemical biosensors.
View Full-Text
▼
Show Figures
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Damiati, S.; Schuster, B. Electrochemical Biosensors Based on S-Layer Proteins. Sensors 2020, 20, 1721. https://doi.org/10.3390/s20061721
AMA Style
Damiati S, Schuster B. Electrochemical Biosensors Based on S-Layer Proteins. Sensors. 2020; 20(6):1721. https://doi.org/10.3390/s20061721
Chicago/Turabian StyleDamiati, Samar; Schuster, Bernhard. 2020. "Electrochemical Biosensors Based on S-Layer Proteins" Sensors 20, no. 6: 1721. https://doi.org/10.3390/s20061721
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
Search more from Scilit