Open AccessNew Synthesis of Gold‐ and Silver‐Based Nano‐Tetracycline Composites
Author(s) -
Djafari Jamila,
Marinho Catarina,
Santos Tiago,
Igrejas Gilberto,
Torres Carmen,
Capelo José Luis,
Poeta Patricia,
Lodeiro Carlos,
FernándezLodeiro Javier
Publication year - 2016
Publication title -
chemistryopen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 29
ISSN - 2191-1363
DOI - 10.1002/open.201600016
Subject(s) - tetracycline , aqueous solution , colloidal gold , metal ions in aqueous solution , silver nanoparticle , chemistry , metal , colloid , nano , nanoparticle , nanotechnology , antibacterial agent , materials science , antibacterial activity , silver nano , chemical engineering , nuclear chemistry , bacteria , composite material , antibiotics , organic chemistry , biochemistry , engineering , biology , genetics
A new synthetic methodology of water‐soluble gold and silver nanoparticles (AuNPs@TC and AgNPs@TC), using the antibiotic tetracycline (TC) as co‐reducing and stabilizing agent, is reported. Both colloids exhibit high water stability. The average sizes obtained were 25±10 and 15±5 nm, respectively. Both composites were tested against TC‐resistant bacteria, presenting an increasing antibacterial effect in the case of AgNPs@TC. The sensing towards metal ions was also explored. An interesting and reversible affinity of AuNPs@TC towards Al III cations in an aqueous system was also observed.