Abstract
Optical sensors have seamlessly integrated the progress of materials science, giving rise to a novel class of devices. These cutting-edge sensors incorporate bioinspired sensing layers, coatings, and mechanisms, tailor-made for various specialized applications in fields like medicine, industry, and technology. This advancement paves the way for groundbreaking improvements in biosensor technology, offering enhanced capabilities for detecting and analyzing various substances in diverse settings. In this brief report the recent and future challenges in biosensors applying bioinspired sensing layers, as well as advances in science and technology to meet them, are presented.