Publicación:
Simple synthesis of gold-decorated silica nanoparticles by in situ precipitation method with new plasmonic properties
Simple synthesis of gold-decorated silica nanoparticles by in situ precipitation method with new plasmonic properties
| dc.contributor.author | Félix L.L. | es_PE |
| dc.contributor.author | Porcel J.M. | es_PE |
| dc.contributor.author | Aragón F.F.H. | es_PE |
| dc.contributor.author | Pacheco-Salazar D.G. | es_PE |
| dc.contributor.author | Sousa M.H. | es_PE |
| dc.date.accessioned | 2024-05-30T23:13:38Z | |
| dc.date.available | 2024-05-30T23:13:38Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | We describe a simple method for the preparation of gold-decorated silica (SiO2) nanoparticles (NPs) by the in situ precipitation method using simple BH4? ions reduction as a procedure, where BH4? ions are adsorbed onto PEI-functionalized SiO2 NPs for stabilizing and reducing gold ions onto PEI-SiO2 surface in water under ambient conditions. The result was 3-nm gold nanoshell NPs attached to SiO2 core (~ 75 nm) with a surface plasmon resonance (SPR) at ~ 680 nm. SPR band is associated with Au NP aggregates that arise from strong interparticle interaction. This is an alternative to the gold-seeding methods and the use of anionic gold species for the obtention of gold-decorated SiO2 NPs with an important red-shift in UV–Vis absorption and with potential applications in biosensors and photothermal therapy. | |
| dc.description.sponsorship | Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec | |
| dc.identifier.doi | https://doi.org/10.1007/s42452-021-04456-0 | |
| dc.identifier.scopus | 2-s2.0-85102185123 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12390/2345 | |
| dc.language.iso | eng | |
| dc.publisher | Springer Nature | |
| dc.relation.ispartof | urn:issn:2523-3971 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.subject | Red-shift | |
| dc.subject | Decorated | es_PE |
| dc.subject | Gold | es_PE |
| dc.subject | PEI-coated silica | es_PE |
| dc.subject | Plasmonic | es_PE |
| dc.subject | Polyethyleneimine | es_PE |
| dc.subject.ocde | http://purl.org/pe-repo/ocde/ford#2.10.01 | |
| dc.title | Simple synthesis of gold-decorated silica nanoparticles by in situ precipitation method with new plasmonic properties | |
| dc.type | info:eu-repo/semantics/article | |
| dspace.entity.type | Publication |