Investigation of the supramolecular assembly of luminescent lanthanide nanoparticles surface functionalized by p-sulfonato-calix[4]arenes with charged aromatic compounds
Investigation of the supramolecular assembly of luminescent lanthanide nanoparticles surface functionalized by p-sulfonato-calix[4]arenes with charged aromatic compounds
The surface coordination of p-sulfonato- (C[4]), p-sulfonatothia- (SC[4]) and p-sulfonato-sulfoxocalix[4]arene (SO2C[4]) on La0.9Tb0.1F3 nanoparticles (TbNP) was investigated by UV-Vis absorption and luminescence spectroscopies. SO2C[4] displayed the strongest affinity towards the NPs and a significant antenna effect leading to observation of the characteristic Tb emission bands upon calixarene excitation. NPs decorated by a shell of SO2C[4] were prepared and the interaction with rhodamine 6G (R6G) was studied. The progressive addition of R6G resulted in a strong Tb to R6G energy transfer process, as revealed by a long lived emission of R6G upon SO2C[4] excitation. The FRET efficiency was almost quantitative (87–90 %), pointing to an average distance of 28 to 32 Å between the R6G and the Tb emitting centres of the NP. An association of one R6G per SO2C[4] was deduced with a very strong apparent affinity (K=2.5×107 M−1) in water. Similar interactions were observed with paraquat, resulting in TbNP luminescence quenching. In both cases, an unexpected increase of the association constant of the cation with SO2C[4] was observed when SO2C[4] is anchored at the surface of the NP.
Calixarenes, FRET, Lanthanides, Nanoparticles, Photoluminescence
3761-3770
Cheignon, Clémence
22794e74-46d3-474a-8440-3895119ee16b
Heurté, Margaux
9e5a2e4d-d4a2-4c4a-ab21-adf2c6668a09
Knighton, Richard C.
5a63128e-0ebd-466a-b327-3aee6e85a76d
Kassir, Ali A.
d73730d1-6b3d-4257-8fae-7eb1c6dcc9fc
Lecointre, Alexandre
6f8516c8-6050-41ca-9271-f681e1f1c400
Nonat, Aline
85ec1404-041e-4dfa-b196-d7676d1d5b0d
Boos, Anne
26c1b97b-f37c-4b00-90cc-5cde125990ef
Christine, Câline
10ba10c3-d3c6-4066-9981-25367bcd1c4d
Asfari, Zouhair
5854661c-5007-48c0-9df0-cdde048cd20d
Charbonnière, Loïc J.
cb976ce4-b45a-493c-bd86-3a5c508678d5
28 July 2021
Cheignon, Clémence
22794e74-46d3-474a-8440-3895119ee16b
Heurté, Margaux
9e5a2e4d-d4a2-4c4a-ab21-adf2c6668a09
Knighton, Richard C.
5a63128e-0ebd-466a-b327-3aee6e85a76d
Kassir, Ali A.
d73730d1-6b3d-4257-8fae-7eb1c6dcc9fc
Lecointre, Alexandre
6f8516c8-6050-41ca-9271-f681e1f1c400
Nonat, Aline
85ec1404-041e-4dfa-b196-d7676d1d5b0d
Boos, Anne
26c1b97b-f37c-4b00-90cc-5cde125990ef
Christine, Câline
10ba10c3-d3c6-4066-9981-25367bcd1c4d
Asfari, Zouhair
5854661c-5007-48c0-9df0-cdde048cd20d
Charbonnière, Loïc J.
cb976ce4-b45a-493c-bd86-3a5c508678d5
Cheignon, Clémence, Heurté, Margaux, Knighton, Richard C., Kassir, Ali A., Lecointre, Alexandre, Nonat, Aline, Boos, Anne, Christine, Câline, Asfari, Zouhair and Charbonnière, Loïc J.
(2021)
Investigation of the supramolecular assembly of luminescent lanthanide nanoparticles surface functionalized by p-sulfonato-calix[4]arenes with charged aromatic compounds.
European Journal of Inorganic Chemistry, 2021 (36), .
(doi:10.1002/ejic.202100546).
Abstract
The surface coordination of p-sulfonato- (C[4]), p-sulfonatothia- (SC[4]) and p-sulfonato-sulfoxocalix[4]arene (SO2C[4]) on La0.9Tb0.1F3 nanoparticles (TbNP) was investigated by UV-Vis absorption and luminescence spectroscopies. SO2C[4] displayed the strongest affinity towards the NPs and a significant antenna effect leading to observation of the characteristic Tb emission bands upon calixarene excitation. NPs decorated by a shell of SO2C[4] were prepared and the interaction with rhodamine 6G (R6G) was studied. The progressive addition of R6G resulted in a strong Tb to R6G energy transfer process, as revealed by a long lived emission of R6G upon SO2C[4] excitation. The FRET efficiency was almost quantitative (87–90 %), pointing to an average distance of 28 to 32 Å between the R6G and the Tb emitting centres of the NP. An association of one R6G per SO2C[4] was deduced with a very strong apparent affinity (K=2.5×107 M−1) in water. Similar interactions were observed with paraquat, resulting in TbNP luminescence quenching. In both cases, an unexpected increase of the association constant of the cation with SO2C[4] was observed when SO2C[4] is anchored at the surface of the NP.
Text
Eur J Inorg Chem - 2021 - Cheignon
- Version of Record
Restricted to Repository staff only
Request a copy
More information
e-pub ahead of print date: 19 July 2021
Published date: 28 July 2021
Keywords:
Calixarenes, FRET, Lanthanides, Nanoparticles, Photoluminescence
Identifiers
Local EPrints ID: 482016
URI: http://eprints.soton.ac.uk/id/eprint/482016
ISSN: 1434-1948
PURE UUID: 10228495-20e0-4435-b204-d94ccaf75669
Catalogue record
Date deposited: 15 Sep 2023 16:33
Last modified: 18 Mar 2024 04:15
Export record
Altmetrics
Contributors
Author:
Clémence Cheignon
Author:
Margaux Heurté
Author:
Richard C. Knighton
Author:
Ali A. Kassir
Author:
Alexandre Lecointre
Author:
Aline Nonat
Author:
Anne Boos
Author:
Câline Christine
Author:
Zouhair Asfari
Author:
Loïc J. Charbonnière
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics