Chemometric Analysis of Excitation Emission Matrices of Fluorescent Nanocomposites

Overview

Journal J Fluoresc

Specialties Biophysics
Chemistry

Date 2011 May 25

PMID 21607589

Citations 2

Authors

Joao M M Leitao

Roma Tauler

Joaquim C G Esteves da Silva

Affiliations

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Abstract

The performance of multivariate curve resolution (MCR-ALS) to decompose sets of excitation emission matrices of fluorescence (EEM) of nanocomposite materials used as analytical sensors was assessed. The two fluorescent nanocomposite materials were: NH(2)-polyethylene glycol (PEG200) functionalized carbon dots, sensible to aqueous Hg(II) (CD); and, CdS quantum dots attached to the dendrimer DAB, sensible to the ionic strength of the aqueous medium (CdS-DAB). The structures of these sets of EEM, obtained as function of the Hg(II) concentration and ionic strength, are characterized by collinear properties (CD) and non-linear spectral variations (CdS-DAB). MCR-ALS was able to detect that the source of the collinearities is the presence of different size CD that show similar affinity towards Hg(II). Moreover, MCR-ALS was able to model the non-linear spectral variations of the CdS-DAB that are induced by varying ionic strength. The chemometric pre-processing of the fluorescent data sets using soft-modelling multivariate curve resolution like MCR-ALS is a critical step to transform these nanocomposites with interesting fluorescent proprieties into analytical useful nanosensors.

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References

Mao X, Zheng H, Long Y, Du J, Hao J, Wang L . Study on the fluorescence characteristics of carbon dots. Spectrochim Acta A Mol Biomol Spectrosc. 2009; 75(2):553-7. DOI: 10.1016/j.saa.2009.11.015. View

Zhang Y, Goncalves H, da Silva J, Geddes C . Metal-enhanced photoluminescence from carbon nanodots. Chem Commun (Camb). 2011; 47(18):5313-5. DOI: 10.1039/c0cc03832f. View

Campos B, Algarra M, da Silva J . Fluorescent properties of a hybrid cadmium sulfide-dendrimer nanocomposite and its quenching with nitromethane. J Fluoresc. 2009; 20(1):143-51. DOI: 10.1007/s10895-009-0532-5. View

Goncalves H, Mendonca C, da Silva J . PARAFAC analysis of the quenching of EEM of fluorescence of glutathione capped CdTe quantum dots by Pb(II). J Fluoresc. 2008; 19(1):141-9. DOI: 10.1007/s10895-008-0395-1. View

Campos B, Algarra M, Alonso B, Casado C, da Silva J . Mercury(II) sensing based on the quenching of fluorescence of CdS-dendrimer nanocomposites. Analyst. 2009; 134(12):2447-52. DOI: 10.1039/b914302e. View

Roduner E . Size matters: why nanomaterials are different. Chem Soc Rev. 2006; 35(7):583-92. DOI: 10.1039/b502142c. View

Wang C, Gao X, Su X . In vitro and in vivo imaging with quantum dots. Anal Bioanal Chem. 2010; 397(4):1397-415. DOI: 10.1007/s00216-010-3481-6. View

Leitao J, Goncalves H, Mendonca C, da Silva J . Multiway chemometric decomposition of EEM of fluorescence of CdTe quantum dots obtained as function of pH. Anal Chim Acta. 2008; 628(2):143-54. DOI: 10.1016/j.aca.2008.09.020. View

Goncalves H, da Silva J . Fluorescent carbon dots capped with PEG200 and mercaptosuccinic acid. J Fluoresc. 2010; 20(5):1023-8. DOI: 10.1007/s10895-010-0652-y. View

10.

da Silva J, Tavares M, Tauler R . Multivariate curve resolution of multidimensional excitation-emission quenching matrices of a Laurentian soil fulvic acid. Chemosphere. 2006; 64(11):1939-48. DOI: 10.1016/j.chemosphere.2006.01.027. View

11.

Sun Y, Zhou B, Lin Y, Wang W, Fernando K, Pathak P . Quantum-sized carbon dots for bright and colorful photoluminescence. J Am Chem Soc. 2006; 128(24):7756-7. DOI: 10.1021/ja062677d. View

12.

Han C, Li H . Host-molecule-coated quantum dots as fluorescent sensors. Anal Bioanal Chem. 2009; 397(4):1437-44. DOI: 10.1007/s00216-009-3361-0. View

13.

Smith A, Nie S . Semiconductor nanocrystals: structure, properties, and band gap engineering. Acc Chem Res. 2009; 43(2):190-200. PMC: 2858563. DOI: 10.1021/ar9001069. View

14.

da Silva J, Tauler R . Multivariate curve resolution of synchronous fluorescence spectra matrices of fulvic acids obtained as a function of pH. Appl Spectrosc. 2006; 60(11):1315-21. DOI: 10.1366/000370206778999111. View

15.

Goncalves H, Duarte A, da Silva J . Optical fiber sensor for Hg(II) based on carbon dots. Biosens Bioelectron. 2010; 26(4):1302-6. DOI: 10.1016/j.bios.2010.07.018. View

16.

Regulacio M, Han M . Composition-tunable alloyed semiconductor nanocrystals. Acc Chem Res. 2010; 43(5):621-30. DOI: 10.1021/ar900242r. View

17.

Yang S, Cao L, Luo P, Lu F, Wang X, Wang H . Carbon dots for optical imaging in vivo. J Am Chem Soc. 2009; 131(32):11308-9. PMC: 2739123. DOI: 10.1021/ja904843x. View

18.

Aswathy R, Yoshida Y, Maekawa T, Kumar D . Near-infrared quantum dots for deep tissue imaging. Anal Bioanal Chem. 2010; 397(4):1417-35. DOI: 10.1007/s00216-010-3643-6. View