Incorporation of biocides in nanocapsules for protective coatings used in maritime applications
authors Maia, F; Silva, AP; Fernandes, S; Cunha, A; Almeida, A; Tedim, J; Zheludkevich, ML; Ferreira, MGS
nationality International
journal CHEMICAL ENGINEERING JOURNAL
author keywords Antifouling coatings; Encapsulation of biocides; Silica nanocapsules; Antibacterial activity
keywords ANTIFOULING COATINGS; 2-MERCAPTOBENZOTHIAZOLE; CORROSION; NANOCONTAINERS; POLYMERIZATION; DERIVATIVES; POLYMERS; SURFACES; PAINTS
abstract This work reports the synthesis and characterization of silica nanocapsules with biologically-active compounds 2-mercaptobenzothiazole and 4,5-dichloro-2-octyl-4-isothiazolin-3-one. The resulting particles were characterized by scanning electron microscopy, thermogravimetry and adsorption-desorption isotherms of N-2. The antibacterial activity was assessed for both nanocapsules dispersed in solution as well as incorporated in coating systems, using a recombinant bioluminescent Escherichia coli expressing the luxCDABE genes from the marine bioluminescent bacterium Aliivibrio fischeri. The decrease in light emission of the bacterial model, indicative as decrease of metabolic activity, was directly correlated with the level of biocide detected in solution by UV-Visible spectrophotometry. The results show that the developed nanomaterials show great potential for application in antifouling coatings. (C) 2015 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE SA
issn 1385-8947
year published 2015
volume 270
beginning page 150
ending page 157
digital object identifier (doi) 10.1016/j.cej.2015.01.076
web of science category Engineering, Environmental; Engineering, Chemical
subject category Engineering
unique article identifier WOS:000353729100018
  ciceco authors
  impact metrics
times cited (wos core): 6
journal impact factor (jcr 2016): 6.216
5 year journal impact factor (jcr 2016): 6.159
category normalized journal impact factor percentile (jcr 2016): 95.412
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