Exploring the use of biosurfactants from Bacillus subtilis in
bionanotechnology: A potential dispersing agent for carbon nanotube
ecotoxicological studies
In this work, we evaluate the efficiency of biosurfactants produced by
Bacillus subtilis LSFM-05 for the dispersion of acid-treated
multi-walled carbon nanotubes (CNT-LQES(1)) and the effect of dispersion
on toxicity testing with Daphnia similis. Carbon nanotubes are very
hydrophobic materials and they readily agglomerate in mineral water. As
a result, in order to determine their toxicity it is critical to
evaluate methods to disperse these nanomaterials in a biologically
compatible manner. The biosurfactant used in this work, termed BioS,
which is a mixture of the lipopeptides (surfactin and fengycin), was
found to be non-toxic to D. similis in an acute toxicity test (48 h) and
it was an excellent dispersing agent for CNT-LQES(1) in reconstituted
mineral water. Monitoring in real-time using the nanoparticle tracking
analysis (NTA) showed that the colloidal stability of the CNT-LQES(1)
suspension dispersed with BioS was highly stable. These findings are
encouraging for the application of biosurfactants as nontoxic dispersion
agents in the emerging fields of bionanotechnology and nanotoxicology.
(C) 2014 Elsevier Ltd. All rights reserved.
%0 Journal Article
%1 WOS:000338605500015
%A Martinez, Diego Stefani T
%A Faria, Andreia F
%A Berni, Elias
%A Filho, Antonio G Souza
%A Almeida, Gilberto
%A Caloto-Oliveira, Adria
%A Grossman, Matthew J
%A Durrant, Lucia R
%A Umbuzeiro, Gisela A
%A Alves, Oswaldo L
%C THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
%D 2014
%I ELSEVIER SCI LTD
%J PROCESS BIOCHEMISTRY
%K Colloidal Nanoparticle; Nanotoxicity} Safety; stability; {Surfactant;
%N 7
%P 1162-1168
%R 10.1016/j.procbio.2014.04.006
%T Exploring the use of biosurfactants from Bacillus subtilis in
bionanotechnology: A potential dispersing agent for carbon nanotube
ecotoxicological studies
%V 49
%X In this work, we evaluate the efficiency of biosurfactants produced by
Bacillus subtilis LSFM-05 for the dispersion of acid-treated
multi-walled carbon nanotubes (CNT-LQES(1)) and the effect of dispersion
on toxicity testing with Daphnia similis. Carbon nanotubes are very
hydrophobic materials and they readily agglomerate in mineral water. As
a result, in order to determine their toxicity it is critical to
evaluate methods to disperse these nanomaterials in a biologically
compatible manner. The biosurfactant used in this work, termed BioS,
which is a mixture of the lipopeptides (surfactin and fengycin), was
found to be non-toxic to D. similis in an acute toxicity test (48 h) and
it was an excellent dispersing agent for CNT-LQES(1) in reconstituted
mineral water. Monitoring in real-time using the nanoparticle tracking
analysis (NTA) showed that the colloidal stability of the CNT-LQES(1)
suspension dispersed with BioS was highly stable. These findings are
encouraging for the application of biosurfactants as nontoxic dispersion
agents in the emerging fields of bionanotechnology and nanotoxicology.
(C) 2014 Elsevier Ltd. All rights reserved.
@article{WOS:000338605500015,
abstract = {In this work, we evaluate the efficiency of biosurfactants produced by
Bacillus subtilis LSFM-05 for the dispersion of acid-treated
multi-walled carbon nanotubes (CNT-LQES(1)) and the effect of dispersion
on toxicity testing with Daphnia similis. Carbon nanotubes are very
hydrophobic materials and they readily agglomerate in mineral water. As
a result, in order to determine their toxicity it is critical to
evaluate methods to disperse these nanomaterials in a biologically
compatible manner. The biosurfactant used in this work, termed BioS,
which is a mixture of the lipopeptides (surfactin and fengycin), was
found to be non-toxic to D. similis in an acute toxicity test (48 h) and
it was an excellent dispersing agent for CNT-LQES(1) in reconstituted
mineral water. Monitoring in real-time using the nanoparticle tracking
analysis (NTA) showed that the colloidal stability of the CNT-LQES(1)
suspension dispersed with BioS was highly stable. These findings are
encouraging for the application of biosurfactants as nontoxic dispersion
agents in the emerging fields of bionanotechnology and nanotoxicology.
(C) 2014 Elsevier Ltd. All rights reserved.},
added-at = {2022-05-23T20:00:14.000+0200},
address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND},
author = {Martinez, Diego Stefani T and Faria, Andreia F and Berni, Elias and Filho, Antonio G Souza and Almeida, Gilberto and Caloto-Oliveira, Adria and Grossman, Matthew J and Durrant, Lucia R and Umbuzeiro, Gisela A and Alves, Oswaldo L},
biburl = {https://www.bibsonomy.org/bibtex/2588b275966fdbfd7d641101c05b1c30d/ppgfis_ufc_br},
doi = {10.1016/j.procbio.2014.04.006},
interhash = {77c8a2acf7dcdbce4aca988b0023ddb5},
intrahash = {588b275966fdbfd7d641101c05b1c30d},
issn = {1359-5113},
journal = {PROCESS BIOCHEMISTRY},
keywords = {Colloidal Nanoparticle; Nanotoxicity} Safety; stability; {Surfactant;},
number = 7,
pages = {1162-1168},
publisher = {ELSEVIER SCI LTD},
pubstate = {published},
timestamp = {2022-05-23T20:00:14.000+0200},
title = {Exploring the use of biosurfactants from Bacillus subtilis in
bionanotechnology: A potential dispersing agent for carbon nanotube
ecotoxicological studies},
tppubtype = {article},
volume = 49,
year = 2014
}