TY - JOUR
T1 - New-coated fluorescent silver nanoparticles with a fluorescein thiol esther derivative
T2 - Fluorescent enhancement upon interaction with heavy metal ions
AU - Fernandez Lodeiro, Javier
AU - Nunez, Cristina
AU - Fernandez-Lodeiro, Adrian
AU - Oliveira, Elisabete
AU - Rodriguez-Gonzalez, Benito
AU - dos Santos, Alcindo A.
AU - Capelo, José Luis
AU - Lodeiro, Carlos
N1 - We are grateful to the Scientific Association ProteoMass for financial support. J. F. L. thanks the University of Sao Paulo (Brazil) through the NAP-CatSinQ (Research Core in Catalysis and Chemical Synthesis) and FAPESP (Brazil) for a research post-doctoral grant. C. N. thanks Xunta de Galicia (Spain) for her post-doctoral contract (I2C program). E. Oliveira acknowledges the post-doctoral grant SFRH/BPD/72557/2010 provided by Fundacao para a Ciencia e a Tecnologia-Ministerio da Educacao e Ciencia, FCT-MEC, Portugal. The authors are also grateful for the financial and structural support offered by the University of Sao Paulo through the NAP-CatSinQ (Research Core in Catalysis and Chemical Synthesis) and FAPESP for financial support. Authors thank the financial support by REQUIMTE-FCT Project Pest-C/ EQB/LA0006/2013).
PY - 2014/3
Y1 - 2014/3
N2 - A new fluorescein thiol esther derivativeL was successfully synthesized and fully characterized.The interaction of compound L with sphericalsilver nanoparticles (AgNPs) was explored in toluene,through the exchange of the tetraoctylammoniumbromated (TOAB) molecules stabilizing the silvernanoparticle surface (AgNPs@TOAB). A new hybridsystem AgNPs@L was obtained in which an intensemetal-enhancement fluorescence phenomenon takesplace. The behaviour of the new-coated Ag-NPs@L system was explored in the presence of silenttoxic metal ions, such as Hg2?, Pb2? and Tl? inorganic phase. Surprisingly, systemAgNPs@Lrevealsto be sensitive to Hg2? ions over the other heavy metalions studied.
AB - A new fluorescein thiol esther derivativeL was successfully synthesized and fully characterized.The interaction of compound L with sphericalsilver nanoparticles (AgNPs) was explored in toluene,through the exchange of the tetraoctylammoniumbromated (TOAB) molecules stabilizing the silvernanoparticle surface (AgNPs@TOAB). A new hybridsystem AgNPs@L was obtained in which an intensemetal-enhancement fluorescence phenomenon takesplace. The behaviour of the new-coated Ag-NPs@L system was explored in the presence of silenttoxic metal ions, such as Hg2?, Pb2? and Tl? inorganic phase. Surprisingly, systemAgNPs@Lrevealsto be sensitive to Hg2? ions over the other heavy metalions studied.
KW - Biological effects
KW - Fluorescein
KW - HRTEM
KW - MEF
KW - Silver nanoparticles
KW - TEM
U2 - 10.1007/s11051-014-2315-4
DO - 10.1007/s11051-014-2315-4
M3 - Article
SN - 1388-0764
VL - 16
SP - 2315
JO - Journal Of Nanoparticle Research
JF - Journal Of Nanoparticle Research
IS - 3
ER -