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dc.contributor.authorContreras Montoya, Rafael-
dc.contributor.authorEscolano, Gillermo-
dc.contributor.authorRoy, Subhasish-
dc.contributor.authorLópez López, Modesto-
dc.contributor.authorDelgado López, José Manuel-
dc.contributor.authorCuerva, Juan M.-
dc.contributor.authorDíaz Mochón, Juan José-
dc.contributor.authorAshkenasy, Nurit-
dc.contributor.authorGavira, José A.-
dc.contributor.authorÁlvarez de Cienfuegos, Luis-
dc.identifierdoi: 10.1002/adfm.201807351-
dc.identifierissn: 1616-3028-
dc.identifier.citationAdvanced Functional Materials 29: 1807351 (2019)-
dc.description.abstractNovel reinforced cross-linked lysozyme crystals containing homogeneous dispersions of single-walled carbon nanotubes bundles (SWCNTs) are produced and characterized. The incorporation of SWCNTs inside lysozyme crystals gives rise to reinforced composite materials with tunable mechanical strength and electronic conductivity, while preserving the crystal quality and morphology. These reinforced crystals show increased catalytic activity at higher temperatures, being active even above the denaturation temperature. The electron transport through the crystals is linked to the content and distribution of SWCNT bundles inside the crystals. The electron conduction through the crystals is isotropic and very efficient, presenting high conductivity values up to 600 nS at very low (0.05 wt%) SWCNT concentration. To obtain these crystals, a new protocol based on the in situ crystallization of lysozyme in composite SWCNT–peptide hydrogels is developed. These peptide hydrogels are able to homogeneously disperse bundles of hydrophobic SWCNTs allowing first, the crystallization of the enzyme lysozyme and second, transferring the new properties of the inorganic component to the crystals. Taken together, these composite crystals represent an example of the versatility of proteins as biological substrates in the generation of novel functional materials, opening the door to use them in catalysis and bioelectronics at macroscale.-
dc.description.sponsorshipThis study was supported by the projects BIO2016-74875-P and FIS201785954-R (Ministerio de Economía, Industria y Competitividad, MINECO, and Agencia Estatal de Investigación, AEI, Spain, co-funded by Fondo Europeo de Desarrollo Regional, FEDER, European Union) and by the Junta de Andalucía (Spain) projects P12-FQM-2721 and P12-FQM-790. The authors also thank the “Unidad de Excelencia Química aplicada a Biomedicina y Medioambiente” (UGR) for funding. The authors are very grateful to the staff at Xaloc (ALBA) for support during data collection and CIC (Centro de Instrumentación Científíca) for the help during c-AFM measurements.-
dc.titleCatalytic and Electron Conducting Carbon Nanotube–Reinforced Lysozyme Crystals-
dc.contributor.funderMinisterio de Economía, Industria y Competitividad (España)-
dc.contributor.funderAgencia Estatal de Investigación (España)-
dc.contributor.funderJunta de Andalucía-
dc.contributor.funderUniversidad de Granada-
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