Journal
ACS BIOMATERIALS SCIENCE & ENGINEERING
Volume 7, Issue 6, Pages 2015-2042Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsbiomaterials.1c00080
Keywords
silk fibroin; sensor; immobilization matrix; bioreceptors; glucose sensors
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Using silk fibroin as an immobilization matrix for sensors enhances their analytical performance, while the excellent physical properties of silk fibroins are also a significant advantage.
The development of flexible, biocompatible, and environmentfriendly sensors has attracted a significant amount of scientific interest for the past few decades. Among all the natural materials, silk fibroin (SF), due to its tunable biodegradability, biocompatibility, ease of processing, presence of functional groups, and controllable dimensions, has opened up opportunities for immobilizing multitudinous biomolecules and conformability to the skin, among other attractive opportunities. The silk fibroins also offer good physical properties, such as superior toughness and tensile strength. The sensors made of SF as an immobilization matrix have demonstrated excellent analytical performance, sensing even at low concentrations. The significant advantage of silk fibroins is the presence of functional groups along with a controllable conformation transition that enables immobilization of receptor molecules using silk fibroins as an immobilization matrix enables us to entrap the receptor molecules without using any chemical reagents. This review encompasses a detailed discussion on sensors, the advantages of using silk fibroins as an immobilization matrix for various receptors, their applications, and the future research scope in this state-of-the-art technology based upon the explorable applications for silk fibroin-based sensors.
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