Title of dataset: Dataset for the research paper "Local and express probing of enzymatic activity using functional plasmon active optical fiber" __________________________________________________________________________________________ DOI of the research paper: __________________________________________________________________________________________ Names/institutions/contact information: Elena Miliutina 1,2, Elena Stepanova 1, Alina Gorbunova 1, Yuliia Viktosenko 1, Denis Vasilev 1, Anastasiia Skvortsova 1, Vasilii Burtsev 1, Zdenka Kolska 1, Pavel Postnikov,1 Oleksiy Lyutakov 1 1 Department of Solid State Engineering, University of Chemistry and Technology, Technická 5, Prague 16628, Czech Republic 2 Faculty of Science, J. E. Purkyně University, Pasteurova 3544/1, Ústí nad Labem 400 96, Czech Republic Correspondence – Oleksiy Lyutakov (lyutakoo@vscht.cz) __________________________________________________________________________________________ Data manager or custodian: Filip Prusa (prusaf@vscht.cz) __________________________________________________________________________________________ Data collection: 02/2023-04/2025 __________________________________________________________________________________________ Attributes: GlyIS – glycoside iodonium salt UV-Vis – Ultraviolet-Visible Spectroscopy SEM-EDX – Scanning Electron Microscopy with Energy-Dispersive X-ray Spectroscopy AFM – atomic force microscopy RT - room temperature __________________________________________________________________________________________ File formats: Databases .csv Images .tiff __________________________________________________________________________________________ Structure of the dataset: The structure of this dataset is represented by the following description. Fig. 1 (tiff) Schema of the preparation of optical fiber based sensor for in-situ estimation of enzyme activity and its operation: A, B - plasmon-induced grafting of glycoside chemical moieties (A, B) and their subsequent enzyme-induced cleavage C, D - both leading to the shift of the wavelength position of plasmon absorption band, which can be red in the light-reflection mode. Fig. 2 (tiff) SEM and EDX characterization of Au surface morphology and composition before and after the grafting of Gly chemical moieties Fig. 3 (tiff) AFM measured surface morphology (from left to right: Au surface, Au-Gly surface, Au-Gly surface after interaction with enzyme) Fig. 4 (csv) UV-Vis optical spectra and gradual shift of plasmon absorption band measured after the probe immersion in the enzyme solution (RT, pH=5.0; enzyme concentration 0.002) Fig. 5 (csv) Position of plasmon absorption band as a function of optical probe interaction time with enzyme solution (RT, pH=5.0) __________________________________________________________________________________________ Licenses or restrictions applicable to the data: Creative Commons Attribution 4.0 International