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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.9b03065
|2 doi
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|a pubmed24n1020.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Penelas, María Jazmín
|e verfasserin
|4 aut
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| 245 |
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|a Light-Induced Polymer Response through Thermoplasmonics Transduction in Highly Monodisperse Core-Shell-Brush Nanosystems
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|c 2020
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 03.03.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Smart nanosystems that transduce external stimuli to physical changes are an inspiring challenge in current materials chemistry. Hybrid organic-inorganic materials attract great attention due to the combination of building blocks responsive to specific external solicitations. In this work, we present a sequential method for obtaining an integrated core-shell-brush nanosystem that transduces light irradiation into a particle size change through a thermoplasmonic effect. We first synthesize hybrid monodisperse systems made up of functionalized silica colloids covered with controllable thermoresponsive poly(N-isopropylacrylamide), PNIPAm, brushes, produced through radical photopolymerization. This methodology was successfully transferred to AuSiO2 nanoparticles, leading to a core-shell-brush architecture, in which the Au core acts as a nanosource of heat; the silica layer, in turn, adapts the metal and polymer interfacial chemistries and can also host a fluorescent dye for bioimaging. Upon green LED irradiation, a light-to-heat conversion process leads to the shrinkage of the external polymer layer, as proven by in situ DLS. Our results demonstrate that modular hybrid nanosystems can be designed and produced with photothermo-physical transduction. These remote-controlled nanosystems present prospective applications in smart carriers, responsive bioscaffolds, or soft robotics
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|a Journal Article
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|a Contreras, Cintia Belén
|e verfasserin
|4 aut
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|a Angelomé, Paula C
|e verfasserin
|4 aut
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| 700 |
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|a Wolosiuk, Alejandro
|e verfasserin
|4 aut
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| 700 |
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|a Azzaroni, Omar
|e verfasserin
|4 aut
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|a Soler-Illia, Galo J A A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 36(2020), 8 vom: 03. März, Seite 1965-1974
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:36
|g year:2020
|g number:8
|g day:03
|g month:03
|g pages:1965-1974
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|u http://dx.doi.org/10.1021/acs.langmuir.9b03065
|3 Volltext
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