| Full text | |
| Author(s): |
de Melo, Fernando Menegatti
[1]
;
Fante, Allef Soares
[2]
;
Zamarion, Vitor de M.
[1]
;
Toma, Henrique Eisi
[1]
Total Authors: 4
|
| Affiliation: | [1] Univ Sao Paulo, Dept Fundamental Chem, Av Prof Lineu Prestes, BR-05508000 Sao Paulo - Brazil
[2] Univ Sao Paulo, Sch Pharmaceut Sci, Av Prof Lineu Prestes, BR-05508000 Sao Paulo - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | NEW JOURNAL OF CHEMISTRY; v. 43, n. 21, p. 8093-8100, JUN 7 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
Gold nanoparticles (AuNP) were directly synthesized with sodium carboxymethyl cellulose (CMC) by a simple one-pot procedure, exhibiting surprising protection against salt-induced aggregation. The AuNP@CMC nanoparticles are reactive towards thiol ligands such as 4-mercaptopyridine (4MPy) and 2,4,6-trimercapto-1,3,5-triazine (TMT) indicating a labile character for the CMC coating. Aggregation can be promoted by those ligands combined with salt induced effects along the Hofmeister series, allowing one to explore the local enhanced electric fields (hot spots) as surface enhanced Raman (SERS) sensors. Such behavior is selective for several salts within the Hofmeister series, exposing the role of the ligand exchange dynamics in the system. (AU) | |
| FAPESP's process: | 17/09469-2 - Development of chiral plasmonic systems to use as sensors, light propagation and molecular information |
| Grantee: | Vitor de Moraes Zamarion |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 13/24725-4 - Supramolecular chemistry and nanotechnology |
| Grantee: | Henrique Eisi Toma |
| Support Opportunities: | Research Projects - Thematic Grants |