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dc.contributor.author | Bergueiro Álvarez, Julián |
dc.contributor.author | Núñez Martínez, Manuel |
dc.contributor.author | Arias López, Sandra |
dc.contributor.author | Quiñoá Cabana, Emilio |
dc.contributor.author | Riguera Vega, Ricardo |
dc.contributor.author | Freire Iribarne, Félix Manuel |
dc.date.accessioned | 2020-10-09T07:30:28Z |
dc.date.available | 2020-10-09T07:30:28Z |
dc.date.issued | 2020 |
dc.identifier.citation | Nanoscale Horiz., 2020, 5, 495 |
dc.identifier.uri | http://hdl.handle.net/10347/23375 |
dc.description.abstract | A novel type of stimuli-responsive dynamic helical polymer–metal nanoparticle nanocomposite formed by a helical poly(phenylacetylene) (PPA) combined with gold nanoparticles (AuNPs) is described. Thus, several PPA copolymers containing the ethynyl-4-benzamide of (S)-phenylglycine methyl ester (M1) to dictate the helical structure/sense of the copolymer, and the ethynyl-4-benzamide of the 11-((2-(2-(2-aminoethoxy)ethoxy)ethyl)amino)undecane-1-thiol (M2) to link the copolymer to the AuNPs are prepared. Different morphologies of these nanocomposites were obtained by considering the thiol ratio and the self-assembly properties of the PPA, which generates from dispersed AuNPs to fibre-like structures. All these nanocomposites show a dynamic chiral behaviour, it being possible to manipulate their helical sense by the action of external stimuli. Moreover, it is possible to control the aggregation of these nanocomposites into macroscopically chiral nanospheres with low polydispersity by using Ba2+ as a crosslinking agent |
dc.description.sponsorship | We thank Servicio de Microscopía Electrónica (RIAIDT, USC). Financial support from MINECO (CTQ2015-70519-P), Xunta de Galicia (ED431C 2018/30, Centro singular de investigación de Galicia accreditation 2016-2019, ED431G/09) and the European Regional Development Fund (ERDF) is gratefully acknowledged. M. N.-M. thanks MICINN for an FPI contract (BES-2016-078107) |
dc.language.iso | eng |
dc.publisher | Royal Society of Chemistry |
dc.rights | © The Royal Society of Chemistry 2020. This article may be used for non-commercial purposes in accordance with RSC Terms and Conditions for Use of Self-Archived Versions |
dc.title | Chiral gold–PPA nanocomposites with tunable helical sense and morphology |
dc.type | journal article |
dc.identifier.doi | 10.1039/C9NH00659A |
dc.relation.publisherversion | https://doi.org/10.1039/C9NH00659A |
dc.type.hasVersion | AM |
dc.identifier.essn | 2055-6764 |
dc.rights.accessRights | open access |
dc.contributor.affiliation | Universidade de Santiago de Compostela. Centro de Investigación en Química Biolóxica e Materiais Moleculares |
dc.contributor.affiliation | Universidade de Santiago de Compostela. Departamento de Química Orgánica |
dc.description.peerreviewed | SI |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2015-70519-P/ES/ATERIALES QUIROPTICOS MODULABLES A PARTIR DE POLIMEROS INTELIGENTES |
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