Recent progress on designing electrospun nanofibers for colorimetric biosensing applications

Colorimetric sensors based on nanofibers fabricated by electrospinning have gained substantial attention owing to their exceptional features including diverse fibrous morphology, surface area, porous nature, flexibility, and distinctive benefits in functionalization. The electrospun nanofiber–based membranes serve as excellent platforms in colorimetric detection of various biological molecules. The main emphasis of the review is to highlight very recent progress on development of electrospun nanofibers for detection of biomolecules in terms of their response time and high selectivity with special focus to hydrogen peroxide and l-cysteine. We present descriptive examples of the biosensing illustrating the progress in designing electrospun-based nanofibers as sensing probe/support. Furthermore, summary and future outlook on the designing of electrospun nanofibers for colorimetric biosensing is discussed.