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Work presented at the CMAN - 2020 Online Summit on Carbon Materials and Nanotechnology, 29/09/2020, organised by STEMIO (Science Technology Engineering Mathematics International Organization). ; [Background/ Objectives and Goals] Amino-terminated oligoglycines non-covalently self-assemble, through cooperative hydrogen bonding formation, into biocompatible rigid 2D nanostructures called tectomers, either in solution or in surface-promoted processes [1,2]. We here explore the ability of tectomers to form hybrids with graphene oxide (GO), so the interaction at the interface of these 2D nanomaterials is maximized, providing new functionalities to GO. [Methods] GO/tectomer hybrids were prepared by mixing oligoglycine peptide solutions with aqueous GO solutions. The resulting composites were characterized by electron- and atomic force microscopies techniques, by UV-vis and X-ray photoelectron (XPS) spectroscopies, and contact angle measurements. [Expected Results/ Conclusion/ Contribution] Tectomers strongly interact with GO leading to GO instant flocculation and to the formation of novel multilayered hybrid assemblies. Hydrogen bonding formation accounts for the strong interfacial interaction of tectomers with GO [2]. Because of this high affinity of tectomers to GO, tectomers efficiently coat wet-spun GO fibers. We also show that, due to their versatile surface chemistry, tectomers act as supramolecular peptidic adhesives for the immobilization of a variety of carbon nanomaterials, nanoparticles, molecules and drugs on the GO fiber surface therefore allowing GO fiber functionalization. This tectomer-based functionalization strategy can be extended to other fibers, fabrics and substrates, making it very attractive for technological and smart textile applications [3]. ; This work was partially funded by the Aragón regional government (Spain, project E25_20R).

This is an Open Access article distributed under the terms of the Creative Commons Attribution License. ; Laser ablation of selected coordination complexes can lead to the production of metal-carbon hybrid materials, whose composition and structure can be tailored by suitably choosing the chemical composition of the irradiated targets. This 'laser chemistry' approach, initially applied by our group to the synthesis of P-containing nanostructured carbon foams (NCFs) from triphenylphosphine-based Au and Cu compounds, is broadened in this study to the production of other metal-NCFs and P-free NCFs. Thus, our results show that P-free coordination compounds and commercial organic precursors can act as efficient carbon source for the growth of NCFs. Physicochemical characterization reveals that NCFs are low-density mesoporous materials with relatively low specific surface areas and thermally stable in air up to around 600°C. Moreover, NCFs disperse well in a variety of solvents and can be successfully chemically processed to enable their handling and provide NCF-containing biocomposite fibers by a wet-chemical spinning process. These promising results may open new and interesting avenues toward the use of NCFs for technological applications. ; This work has been supported by the regional Government of Aragón (Spain, Project PI119/09, and E101 and T87 Research Groups funding) and the Spanish Government and Feder funds through grant MAT2010-19837-C06-06. This work has been funded in part by the European Commission through projects LIFE11/ENV/ES 560 and grant agreement no. 280658. ; Peer Reviewed