RT journal article T1 Printable Graphene Oxide Nanocomposites as Versatile Platforms for Immobilization of Functional Biomolecules A1 Sanz de León, Alberto A1 Mata Fernández, María de la A1 Delgado González, Francisco Javier A1 Molina Rubio, Sergio Ignacio A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica K1 functional materials K1 graphene oxidenano K1 composites K1 stereolithography K1 surface modification AB A series of novel nanocomposites containing graphene oxide (GO) suitable for stereolithography is presented. Different loads of GO are tested, identifying that these materials can be printed with concentrations up to 2.5 wt% GO, presenting improved mechanical properties for concentrations below 1.0 wt% GO. In this range, the nanocomposites exhibit higher strength and toughness when compared to the pristine resin. Microscopic analyses of the material demonstrate that this can be correlated with the good compatibility of GO with the resin, which favors its homogeneous dispersion in the form of flexible nanoplates. After manufacturing, the availability of GO to participate in surface modification reactions with chitosan (CHI) and an alkaline phosphatase (ALP) is evaluated. CHI and ALP are well-known to act as biological cues in biorecognition processes, evidencing that these nanocomposites are suitable as platforms for selective immobilization of functional biomolecules. PB WILEY SN 1439-2054 YR 2022 FD 2022-03 LK http://hdl.handle.net/10498/26986 UL http://hdl.handle.net/10498/26986 LA eng NO This work was funded by the Ministry of Science, Innovation and Universities (TEC2017-86102-C2-2-R), the 2014-2020 ERDF Operational Programme and the Department of Economy, Knowledge, Business and University of the Regional Government of Andalusia (FEDER-UCA18-106586). Co-funding from UE and the research group INNANOMAT (ref. TEP-946) is also acknowledged. A.S.d.L. and M.d.l.M. acknowledge Ministry of Science, Innovation and Universities for their Juan de la Cierva Incorporacion postdoctoral fellowships (IJC2019-041128-I, IJCI-2017-31507). SEM and TEM measurements were carried out at the DME-SC-ICyT-ELECMI-UCA. DS Repositorio Institucional de la Universidad de Cádiz RD 09-nov-2026